Filter type descaling Note

Kick filter cleaning device filtering accuracy of 1.2mm, if you have special accuracy requirements, in order special instructions so special custom.
2, the installation, the direction of flow with the device orientation flag the same can not be loaded upside. Riser installed on the water should be from top to bottom.
3, the device is provided with a the recoil control valve, just install drain valve and outfall outfall, no need to draw a line bypass, non-stop recoil sewage.

2, installation guidelinesdust collection filter bags
1) cleaning is recommended to be installed near the pump.
2) cleaning day horizontal installation, but can also be mounted vertically, so will not be affected, it should be noted that the top of the host should not dripping phenomenon.
3) cleaning day installation indoors, in the outdoor air conditioning pumps, country cover water-resistant device.
3, the pressure to determine the level of
The device of conventional nominal pressure 1.0MPa, 1.6MPa two other pressure levels can be customized according to user requirements, orders must be specified in the contract nominal pressure.
4 Installation Notes
1) new equipment or fouling serious anti-corruption Ke mounted directly on the water processor.
2) serious scaling facilities should be cleaned after installation to prevent dirt clogging pipes lowered.
3) the installation and removal process should be taken not to host the force and damp.
4) the host part without professional license can not be allowed to play in the form, to prevent damage to the circuit, or the resulting consequences Company shall be excluded.

Run the Notes
1, the products manufactured before the technical inspection department to adjust the user does not have to be adjusted.
2, ordinary red light indicator for power indicator, green work light, where there is:industrial water filters
1) red light, green light is not lit, should be immediately shut down, notify the manufacturer or professional maintenance.
2) Red light, green light, indicating that the normal work can continue branch notify the manufacturer maintenance.
Sewage directly affect the results, we should strengthen the sewage management (≥ 5% of the total amount of sewage).
1) new equipment and equipment can be cleaned monthly sewage.
2) fouling equipment and systems should be weekly sewage, until the dirt Chuqing monthly sewage.

Sub-assembled air conditioner filter

Sub-assembled air conditioner filter, muffler, humidifiers, dehumidifiers, etc.
Section I of Chapter VIII of the ventilation and air conditioning engineering Overview Ventilation Ventilation is the outdoor fresh air after appropriate processing (such as purification, heating) and sent to the room, the the indoor exhaust gas (pasteurized, pesticides) row to the outdoor , to keep the indoor air fresh and clean. Second, the air conditioning works Air conditioning is the use of technical means to a particular space within the air environmental control in a certain state, to meet human comfort or process requirements, ventilation. Under the control of the content, including air temperature, humidity, flow rate, pressure, cleanliness, component, noise, etc.. , Ventilation and air conditioning engineering commonly Legend section II, ventilation and air conditioning equipment and components installed, ventilation and air conditioning equipment and componentscartridge filter housing
(A) ventilator fan centrifugal fan and axial fan. High pressure centrifugal fan, low noise, suitable for longer air supply piping system, axial fan, air volume in the same power, wind down, for short pipe, resistance and air flow required large spaces. 1, the representation of the centrifugal fan, fan models and performance parameters should be marked on the name plate of the fan. Example: Type 4-74-11NO4.5A fan - fan when the maximum efficiency point pressure coefficient multiplied by 10 after taking an integer value, the pressure coefficient of the wind turbine is 0.4, non-powered fan. 74 - more than the number of revolutions. 11 - The first number is the suction form, according to the clues provided by the owners, single inlet 1 (double inlet 0, two series of 2), the second number represents the design sequence number, the first times design. NO4.5 - fan machine number, the percentage of the fan outer ring (mm), the wind turbines impeller diameter to 450mm. A - Transmission code, the wind turbines have no bearing direct-drive. 2, the representation of the axial fan, axial fan casing, impeller, diffuser, motor, its representation letters and numerals. Example: axial fan × 25 ° 1860 × 36 1.5 / 2 axial fan A6 × ° × A - indicates that the fan and the motor directly connected. 6 - 6 - the number of leaves. 25 ° - leaves the mounting angle. 1860 - fan flow 1860m3 / h. 36 - Fan residual pressure of 36Pa. 1.5/2-- fan power to 1.5kW, 2-pole.nylon filter bag
(B) air conditioner ventilation and air conditioning engineering quota within the meaning of air conditioners include: new fans, air handler (air conditioners cabinet), sub-assembled air conditioner, the overall air conditioning units. 1, new fans, air handlers new fans, new fans air handler: two parts by the fan and evaporator, and integrate them in the same cabinets. 2, sub-sub-assembled air conditioner assembly air conditioner: In addition to the fan and the evaporator, the sub-roof axial fan, assembled air conditioner filter, muffler, humidifiers, dehumidifiers, etc., each of which has a separate box, through the flange on request free combination. 3, the overall air conditioning units: the compressor, condenser, evaporator, the overall air conditioning units: the overall air-conditioning unit ventilators, humidifiers, heaters, air filter, automatic adjustment and electrical control devices assembled in a box within.

Filter design applications

A selection of filters depends on three main factors: the raw water quality, pressure, filter media, filtration precision, flow, in order to determine the type and model of the filter.
1, the raw water quality:
Under normal circumstances can be divided into the original water quality is good, average, poor, very poor four categories
Excellent water quality: the uncontaminated City tap water, the from stable aqueous layer extracted well water;
General water quality: circulating cooling water, poor water quality of tap water, surface water by precipitation the drainage through sedimentation and biological treatment;water filter cartridge
Poor water quality: from the poor quality of water extracted groundwater aquifers, effective precipitation, biological treatment without or by small drainage of surface water, a large population of microorganisms;
Poor water quality: high iron or dirty water, affected by the floods and without precipitation surface water, suspended solids content of more river water or other surface water, untreated drainage. (In order to ensure the effect of such water quality shall pretreatment with desander high content of suspended solids in water; water quality is more complex - such as those containing high iron and manganese - subject to aeration or flocculation pre- treatment)
2, filtered and the choice of form
Disc filter and strainer are non-media filters, the product structure, performance, and efficiency indicators are relatively close, but its processing capacity and the applicable occasions specific performance characteristics, based on product characteristics and practice experience, can choose different for different forms of filtering:
Strainer processing ability, suitable for the occasion of a large amount of water, when the amount of water in 80 to 100t / h or more, the cost of the strainer more competitive;
The strainer active cleaning, flushing powerful suction nozzle is more conducive to the removal of dirt adhesion or minor viscosity suitable for processing crude oil contaminants (such as water, sewage, some special flocculation ingredients, etc.);
The strainer can withstand higher operating temperatures (up to 95 ° C), and therefore more suitable for certain occasions demand (such as heating circulating water treatment, petrochemical, metallurgical production, cooling water treatment);woven wire mesh
The disc filter costs and other factors make it more suitable for application in small and medium-sized water production Occasion ships 150t / h or less;
Disc filter can filter accuracy of 5um, suitable for filtering high accuracy requirements, such as surface water drinking pretreatment, reverse osmosis pretreatment, the depth of the municipal water purification;
Disc filter unit and the main body are plastic material, strong, corrosion resistance is more suitable for some corrosive water quality;
Disc filter, lighter weight, installation, operation, maintenance required space, suitable for limited installation space or foundation occasions;
The disc filter models automatically release when flushing filter plate, and therefore more suitable for short fibers treated water.
Filtration:
Automatic filter can be widely used in industrial, commercial areas, such as food, textile, metallurgy, plastics, pharmaceuticals, building materials, paper, industrial and commercial building HVAC system. The filter grade level water systems or equipment requirements on water quality, water occasions to determine the water quality requirements.

Automatic disc the backwash filter characteristics

. Efficient, accurate filter:
The special structure of the filtering technology, the performance of sensitive and accurate to ensure that only the particle diameter is less than the desired particle to enter the system, is the most efficient filtration system; users can be selected according to the water requirements of the type of filtering accuracy, the disc filter can provide up to 5μm Precision filter.
. Adaptability:
Can easily handle a variety of industrial water, sewage (drainage), surface water and river water / wells and other water sources. Device operating temperatures up to 95 ° C, pressure up to 4.0MPa, can be used in high temperature and high pressure conditions.air slide fabric
. Low:
High-speed and thorough backwashing, just tens of seconds to complete. Backwash water consumption is extremely rare, accounting for only 0.5% of the amount of water; such as with air-assisted backwash from the water can be reduced to less than 0.2%. Equipment running minimal power consumption, a standard battery can be used 3,000 times, up to six months of the time, more suitable for powered applications is not easy.
. Standard modular, processing power, small footprint:
Standard cell-based modular design, the user can be selected, interchangeable. The system is compact and extremely small, flexible use of corner space to install, and processing capacity of 1000m3 / h equipment covers an area of ??only 10 square meters. Strainer to provide a single processing capacity of up to 10000m3 / h. System flow can be flexibly adjusted.
Filter by time or differential pressure control, automatic operation. Time control device began to run after a certain period of time backwash; differential pressure control mode using the pressure difference between imports and exports as a control signal when the filter intercepts suspended solids reaches a certain amount, the pressure loss will increase rapidly when the inlet and outlet pressure difference between the device reaches the set value automatically backwash. The differential pressure controller with pressure, time, manual three control functions at the same time, by manual button backwash.
. Fully automatic operation, a continuous water:
Equipment work process is controlled by a dedicated PLC controller, work automatically switch between the backwash, without human intervention, to ensure continuous water. Even if the water quality is significant volatility system can also automatically adapt the processing (between each unit of the disc filter backwash process alternately).water filters cartridges
. Long life:
The new filter element is strong, wear-free, non-corrosive, minimal fouling practical verification after years of industrial use for several years and did not wear, not aging, filtration and backwash effect is not due to the use of time worse.
. High-quality, low maintenance:
Products meet appropriate quality standards, all products in the factory have been testing and commissioning of simulated conditions, without special tools, spare parts little brothers moving; easy to use, only periodic inspection, and almost no routine maintenance.

What is self-cleaning bag filter

What is self-cleaning bag filter? Self-cleaning bag filter of the major improvements is to increase the flow guides and outfall on the basis of the original filter, making it non-stop state can reverse automatic washing dirt and automatically cleaning the filter member of the device. Compared with the previous generation filters, and eliminating sewage and clean the filter when the system downtime and time-consuming shortcomings.filter bag manufacturers
Self-cleaning bag filter suitable for a variety of water supply systems, industrial cooling water systems and process water systems, especially those who need continuous long-term non-stop running system, removal of mechanical impurities. Ensure stable operation of the system equipment.non woven fabric
What is a self-cleaning bag filter? Self-cleaning bag filter made ??from high quality carbon steel cylinder, filter components, flow direction valve and the sewage plant, when the filter flow direction valve is turned on, the water flow since The entrance into the filter, filter, export, dirt and other impurities in water filter to intercept. Sewage when the filter needs to close the flow direction valve, open the drain valve, the water flowing through the second half of the filter before the filter, part of the water is filtered and flows directly into the system, another part of the water from the filter outside into the inside, constantly washed filter body wall dirt, and discharged through the outfall, played the role of reverse automatic washing the filter and remove dirt; the entire recoil sewage process without shutting down the system, there is no need to manually clean the filter, online sewage.

The technical characteristics of the stainless steel bag filter

Here are the online experts to analyze your knowledge about the technical characteristics of stainless steel bag filter for your reference:
Stainless steel bag filter and high porosity and stability, the pore size varies with the pressure change does not occur the phenomenon. Can effectively remove suspended solids and particulates, filtering accuracy is excellent, good purification effect.dust filter bags
Stainless steel bag filter permeability, and pressure loss. The filter completely spherical powder composition, porosity, uniform pore size and smooth, the initial resistance, easy to blowback, regeneration ability, long service life.
Stainless steel bag filter high mechanical strength, good rigidity, good plasticity, anti-oxidation, corrosion resistance, no external skeleton support protection, installation and use simple, easy maintenance, assembly, welding, bonding and mechanical processing.woven fabric
Stainless steel bag filter pore uniformity, especially for fluid distribution, homogenization treatment and other occasions with high uniformity requirements.
Forming a stainless steel bag filter copper powder products, without cutting, the effective utilization of raw materials, the material savings, especially suitable for larger quantities, the complex structure of the components.

Load factor power plant passivation mechanism

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We, by adding the appropriate amount of nickel, usually, it s very easy to rust steel, stop, carbon steel, rare dissolved or diluted HNO3 in concentrated H2SO4 phen omenon almost completely iron, aluminum, or concentrated HNO3 quickly chrome you know that you are dissolved in sulfuric acid, stainless steel. I obey improve the chemical stability of the phenomenon known as passivation significantly metals or alloys, a number of factors. Metal passivation phenomenon caused by (chemical solution) passivating agent several called chemical passivation. load factor power plant

You can HNO3, to H2SO4, HClO3, K2Cr2O7 concentrated concentration, potassium permanganate oxidation agent, the metal passivation. After passivation of the metal, the original characteristics of the iron as a passivation of the copper salt that is copper displaced such to be lost, the electrode potential moves in the positive direction. In addition, The electrochemical method, allowing Fe of H2SO4 solution, applied current anodic polarization, use of the instrument of constant rising p otential of iron to some extent, the passivation of metals such as iron dynamics as an anode. Metal passivation phenomenon caused by the anodic polarization are called electrochemical passivation or anode passivation.
The metal, metal, not to protect the metal from corrosion to ensure the need to prevent passivation as chemical and power electroplating such normally dissolved and involved in the reaction sometimes are passivated.road load power

Dust collector filter bag bag filter mechanism

Diffusion effect: less than 0.2 m of dust particles and gas molecules collide with each other, resulting in irregular movement, irregular movement, a portion of the dust particles are fibers or dust layer retention, a phenomenon known as diffusion effect.
The inertia efficiency: if the large mass of dust particles known as inertial effects, when the gas flows through the fibrous layer was stopped Mechanism. Due to inertia caused by the trapping efficiency is proportional to the size of the dust particles. The density of the dust particles and the velocity of the airflow and inversely proportional to the diameter of the fiber.
Direct interception: When the extension of dust particles airflow line directly to the fiber collecting movement, because the airflow line interval in the range of the radius of the dust particles from the surface of the fiber, dust particles and fibers exposure and is captured, this catch set mechanism is called direct interception.
Electrostatic attraction: Flushing fiber fishing collective friction role in bringing fiber charged. Some dust particles in motion will bring the charge. Such as fiber impregnated with resin, charge role will strengthen, the electrostatic field is applied in the outside world is not catching collective conductive ionized gas molecules after radioactive irradiation, the settlement of the charged particles and other phenomena, this charge will decrease slowly. When no external electric field, 3 (1) particles charged catch collective neutral, then catch collective reverse induced charge, the electrostatic adsorption force (2) harvesting the collective charged particles neutral, the particles only reverse induced charge attraction (3) both charged, according to the charge pairing may be absorbed, there may be repulsive forces.water filter bags
Sieve effect: the gap between the filter or dust on the filter, the gap between the more dust particles hour is conducive to screening retention, that is, the screening effect. Obviously, the larger the dust particles, the smaller the fiber voids, the greater the probability is sieved. Under normal circumstances, the new clean bag screening effect is not strong. When the dust large settlement when the dust layer is formed in the surface of the bag, screening greatly enhanced, and separation and dust trapping efficiency progress.
6 capture unsteady filter: The Hartcourt Guthrie bag filter in time series can be divided into two phases, the stable filter and non-stability filtration stage. In stable filtration stages, assuming ignore the deposition of particles generated on the bag changes in the structure, the particles contact with the fibers are trapped, and do not consider the filtering mechanism of correction, therefore, the trapping efficiency from the filter time. With the filtration time increases, the particle lead to unsteady filter stage generates gradually formed in the surface of the fiber the cloth change of porosity and particle formation chained deposition is conducive to the progress of the fiber collecting ability, lead time and particle trapping efficiency with filter deposition amount increases. Clean state, the single fiber collection efficiency is defined as the particle limit trajectory at the inlet height and the ratio of the fiber diameter, to produce a more significant change in the actual filtering process, with the time increases, the shape and size of the fibers. . In the state of non-stable filter, according to the law of conservation of mass, the quality of the flow into the micro unit less to the quality of the outflow micro unit that increase the quality of the infinitesimal body.liquid filter bags
Filter cleaning regeneration: regeneration of filter cleaning product for the filtration process dust layer on the surface of the bag attached to the broken ring and part of the cleanup on the filter, thereby restoring the normal filtering function of the filter. The cleaning may be periodic, or may be carried out continuously. The cleaning effect is good or bad filter and dust properties, filter conditions, blowback conditions, and many other conditions. The filter cleaning renewable continuous work, the same filter is as important as the process and links.

The baghouse how Kege Si dust bag filter dust

The impact of the use of wind baghouse dust-laden gas speed through 0.5-3m/min dust bag, dust particles in the bag fiber layer running time is only 0.01-0.3s. In the blink of an eye, the dust particles in the gas bag isolated. There are two steps: First, the fiber layer trap dust particles, dust layer of dust particles capture. In a sense, the latter mechanism has a more important role.
Diffusion effect: less than 0.2 m of dust particles and gas molecules collide with each other, resulting in irregular movement, irregular movement, a portion of the dust particles are fibers or dust layer retention, a phenomenon known as diffusion effect.industrial filter press
The inertia efficiency: if the large mass of dust particles known as inertial effects, when the gas flows through the fibrous layer was stopped Mechanism. Due to inertia caused by the trapping efficiency is proportional to the size of the dust particles. The density of the dust particles and the velocity of the airflow and inversely proportional to the diameter of the fiber.
Directly intercept: When the extension of dust particles airflow line directly to the fiber collecting movement, because the airflow line distance from the surface of the fiber within the scope of the radius of the dust particles, dust particles in contact with the fibers and is trapped, this catch set mechanism is called direct interception.
Electrostatic attraction: the air scour fiber collection means, friction role in bringing fiber charged. Some dust particles in motion will bring the charge. Such as fiber impregnated with resin, charge role will strengthen, the electrostatic field is applied in the outside world is not catching collective conductive ionized gas molecules after radioactive irradiation, the settlement of the charged particles and other phenomena, this charge will decrease slowly. When no external electric field, 3 (1) particles charged catch collective neutral, then catch collective reverse induced charge, the electrostatic adsorption force (2) harvesting the collective charged particles neutral, the particles only reverse induced charge attraction (3) both charged, according to the charge pairing may be absorbed, there may be repulsive forces.
Sieve effect: the gap between the filter or dust on the filter, the gap between the more dust particles hour is conducive to screening retention, that is, the screening effect. Obviously, the larger the dust particles, the smaller the fiber voids, the greater the probability is sieved. Under normal circumstances, the new clean bag screening effect is not strong. When the dust large settlement when the dust layer is formed in the surface of the bag, screening greatly enhanced, and improve the efficiency of the separation and capture dust.filter press manufacturers
6 capture unsteady filter: bag filter process time-series can be divided into two phases, the stable filter and non-stability filtration stage. In stable filtration stages, assuming ignore the deposition of particles generated on the bag changes in the structure, the particles contact with the fibers are trapped, and do not consider the filtering mechanism of correction, therefore, the trapping efficiency from the filter time. With the filtration time increases, the particle lead to unsteady filter stage generates gradually formed in the surface of the fiber the cloth change of porosity and particle formation chained deposition is conducive to the improvement of the fiber collecting ability, lead time and particle trapping efficiency with filter deposition amount increases. A clean state, the capture efficiency of a single fiber is defined at the entrance height and the ratio of the fiber diameter of the for Particles maximum trajectory increased with time in the actual filtering process, the shape and size of the fibers produce more significant changes. . In the state of non-stable filter, according to the law of conservation of mass, the quality of inflows micro unit minus outflow element's mass is equal to the infinitesimal body increased quality.
Filter cleaning regeneration: regeneration of filter cleaning product for the filtration process dust layer on the surface of the bag attached to the broken ring and part of the cleanup on the filter, thereby restoring the normal filtering function of the filter. The cleaning may be periodic, or may be carried out continuously. The cleaning effect is good or bad filter and dust properties, filter conditions, blowback conditions and many other conditions. The filter cleaning renewable continuous work, the same filter is as important as the process and links.
Therefore, when cleaning set what conditions, what cleaning method, the blowback air pressure, air flow, blowback duration, peak injection pressure and the number of repetitions, the interval should be based on the baghouse application environment, working parameters, dust, and other application conditions reasonable arrangements to get the desired results.

How to choose the baghouse filtration velocity

Baghouse filtration velocity size determines the size of the baghouse overall operating efficiency and cost. Therefore, we have to understand how to select the size of the filtration velocity.

Filter the size of the wind speed is mainly determined by the traits of dusty gas, fabric categories as well as the nature of the dust, under normal circumstances are selected in accordance with the dust removal equipment recommended sample data and practical experience of the user. Pulse baghouse filtration velocity of about 1.2 to 2m / s, glass fiber bag filter filtration velocity of approximately 0.5 to 0.8 m / s. The main selection parameters are the following.non woven fabrics

A. Type cleaning method according to the different types of dust

Carbon black, silica (white carbon), aluminum, zinc sublimate remaining gas in the gas formed due to condensation and chemical reaction solution, activated carbon is discharged from the cement kiln cement. Filtration velocity of 0.25 to 0.40.3 to 0.50.33 to 0.600.8 to 1.2 m / s.

Sublimate of iron and ferroalloys, foundry dust, alumina, cement mill discharge cement, the carbonization furnace Cheung Wah matter, lime, corundum, plastic, iron oxide, coke, coal. The filtration velocity 0.28 to 0.450.4 to 0.650.45 to 1.01.0 to 2.0 m / s.

Talc, coal, blast cleaning dust, fly ash, ceramic production of dust, carbon black (secondary processing), a pigment, kaolin, limestone, mineral dust, bauxite, cement (from the cooler). The filtration velocity 0.30 to 500.50 to 1.00.6 to 1.21.5 to 3.0 m / s.industrial fabrics

II. According to the number of bags

Calculated the total filtration area and the area of ??the single dust bag, you can calculate the bag number. If the the bag room number of each bag is determined, you can also calculated the entire precipitator room number. Although the the precipitator design or selection in the need to determine the number of rooms, but the site layout and easy maintenance considerations, often more than six rooms in addition to sitting room as the double row. Less than 5 chamber precipitator of each chamber is given as a single row.

Selected parameters, dusty gas flow, the nature of the concentration and dust dispersion, wettability, viscosity, etc. In addition to the above two are selected the baghouse filter wind speed parameters. Understand these parameters, we can easily select the size of the baghouse filter wind speed in order to improve the operating efficiency of the dust collector, thereby reducing costs.

How to choose the baghouse filtration velocity

Baghouse filtration velocity size determines the size of the baghouse overall operating efficiency and cost. Therefore, we have to understand how to select the size of the filtration velocity.

Filter the size of the wind speed is mainly determined by the traits of dusty gas, fabric categories as well as the nature of the dust, under normal circumstances are selected in accordance with the dust removal equipment recommended sample data and practical experience of the user. Pulse baghouse filtration velocity of about 1.2 to 2m / s, glass fiber bag filter filtration velocity of approximately 0.5 to 0.8 m / s. The main selection parameters are the following.

A. Type cleaning method according to the different types of dust

Carbon black, silica (white carbon), aluminum, zinc sublimate remaining gas in the gas formed due to condensation and chemical reaction solution, activated carbon is discharged from the cement kiln cement. Filtration velocity of 0.25 to 0.40.3 to 0.50.33 to 0.600.8 to 1.2 m / s.

Sublimate of iron and ferroalloys, foundry dust, alumina, cement mill discharge cement, the carbonization furnace Cheung Wah matter, lime, corundum, plastic, iron oxide, coke, coal. The filtration velocity 0.28 to 0.450.4 to 0.650.45 to 1.01.0 to 2.0 m / s.

Talc, coal, blast cleaning dust, fly ash, ceramic production of dust, carbon black (secondary processing), a pigment, kaolin, limestone, mineral dust, bauxite, cement (from the cooler). The filtration velocity 0.30 to 500.50 to 1.00.6 to 1.21.5 to 3.0 m / s.

II. According to the number of bags

Calculated the total filtration area and the area of ??the single dust bag, you can calculate the bag number. If the the bag room number of each bag is determined, you can also calculated the entire precipitator room number. Although the the precipitator design or selection in the need to determine the number of rooms, but the site layout and easy maintenance considerations, often more than six rooms in addition to sitting room as the double row. Less than 5 chamber precipitator of each chamber is given as a single row.

Selected parameters, dusty gas flow, the nature of the concentration and dust dispersion, wettability, viscosity, etc. In addition to the above two are selected the baghouse filter wind speed parameters. Understand these parameters, we can easily select the size of the baghouse filter wind speed in order to improve the operating efficiency of the dust collector, thereby reducing costs.

How to choose the baghouse filtration velocity

Baghouse filtration velocity size determines the size of the baghouse overall operating efficiency and cost. Therefore, we have to understand how to select the size of the filtration velocity.

Filter the size of the wind speed is mainly determined by the traits of dusty gas, fabric categories as well as the nature of the dust, under normal circumstances are selected in accordance with the dust removal equipment recommended sample data and practical experience of the user. Pulse baghouse filtration velocity of about 1.2 to 2m / s, glass fiber bag filter filtration velocity of approximately 0.5 to 0.8 m / s. The main selection parameters are the following.

A. Type cleaning method according to the different types of dust

Carbon black, silica (white carbon), aluminum, zinc sublimate remaining gas in the gas formed due to condensation and chemical reaction solution, activated carbon is discharged from the cement kiln cement. Filtration velocity of 0.25 to 0.40.3 to 0.50.33 to 0.600.8 to 1.2 m / s.

Sublimate of iron and ferroalloys, foundry dust, alumina, cement mill discharge cement, the carbonization furnace Cheung Wah matter, lime, corundum, plastic, iron oxide, coke, coal. The filtration velocity 0.28 to 0.450.4 to 0.650.45 to 1.01.0 to 2.0 m / s.

Talc, coal, blast cleaning dust, fly ash, ceramic production of dust, carbon black (secondary processing), a pigment, kaolin, limestone, mineral dust, bauxite, cement (from the cooler). The filtration velocity 0.30 to 500.50 to 1.00.6 to 1.21.5 to 3.0 m / s.

II. According to the number of bags

Calculated the total filtration area and the area of ??the single dust bag, you can calculate the bag number. If the the bag room number of each bag is determined, you can also calculated the entire precipitator room number. Although the the precipitator design or selection in the need to determine the number of rooms, but the site layout and easy maintenance considerations, often more than six rooms in addition to sitting room as the double row. Less than 5 chamber precipitator of each chamber is given as a single row.

Selected parameters, dusty gas flow, the nature of the concentration and dust dispersion, wettability, viscosity, etc. In addition to the above two are selected the baghouse filter wind speed parameters. Understand these parameters, we can easily select the size of the baghouse filter wind speed in order to improve the operating efficiency of the dust collector, thereby reducing costs.

How to choose the baghouse filtration velocity

Baghouse filtration velocity size determines the size of the baghouse overall operating efficiency and cost. Therefore, we have to understand how to select the size of the filtration velocity.

Filter the size of the wind speed is mainly determined by the traits of dusty gas, fabric categories as well as the nature of the dust, under normal circumstances are selected in accordance with the dust removal equipment recommended sample data and practical experience of the user. Pulse baghouse filtration velocity of about 1.2 to 2m / s, glass fiber bag filter filtration velocity of approximately 0.5 to 0.8 m / s. The main selection parameters are the following.non woven fabrics

A. Type cleaning method according to the different types of dust

Carbon black, silica (white carbon), aluminum, zinc sublimate remaining gas in the gas formed due to condensation and chemical reaction solution, activated carbon is discharged from the cement kiln cement. Filtration velocity of 0.25 to 0.40.3 to 0.50.33 to 0.600.8 to 1.2 m / s.

Sublimate of iron and ferroalloys, foundry dust, alumina, cement mill discharge cement, the carbonization furnace Cheung Wah matter, lime, corundum, plastic, iron oxide, coke, coal. The filtration velocity 0.28 to 0.450.4 to 0.650.45 to 1.01.0 to 2.0 m / s.

Talc, coal, blast cleaning dust, fly ash, ceramic production of dust, carbon black (secondary processing), a pigment, kaolin, limestone, mineral dust, bauxite, cement (from the cooler). The filtration velocity 0.30 to 500.50 to 1.00.6 to 1.21.5 to 3.0 m / s.

II. According to the number of bags

Calculated the total filtration area and the area of ??the single dust bag, you can calculate the bag number. If the the bag room number of each bag is determined, you can also calculated the entire precipitator room number. Although the the precipitator design or selection in the need to determine the number of rooms, but the site layout and easy maintenance considerations, often more than six rooms in addition to sitting room as the double row. Less than 5 chamber precipitator of each chamber is given as a single row.

Selected parameters, dusty gas flow, the nature of the concentration and dust dispersion, wettability, viscosity, etc. In addition to the above two are selected the baghouse filter wind speed parameters. Understand these parameters, we can easily select the size of the baghouse filter wind speed in order to improve the operating efficiency of the dust collector, thereby reducing costs.

How to choose the baghouse filtration velocity

Baghouse filtration velocity size determines the size of the baghouse overall operating efficiency and cost. Therefore, we have to understand how to select the size of the filtration velocity.

Filter the size of the wind speed is mainly determined by the traits of dusty gas, fabric categories as well as the nature of the dust, under normal circumstances are selected in accordance with the dust removal equipment recommended sample data and practical experience of the user. Pulse baghouse filtration velocity of about 1.2 to 2m / s, glass fiber bag filter filtration velocity of approximately 0.5 to 0.8 m / s. The main selection parameters are the following.

A. Type cleaning method according to the different types of dust

Carbon black, silica (white carbon), aluminum, zinc sublimate remaining gas in the gas formed due to condensation and chemical reaction solution, activated carbon is discharged from the cement kiln cement. Filtration velocity of 0.25 to 0.40.3 to 0.50.33 to 0.600.8 to 1.2 m / s.

Sublimate of iron and ferroalloys, foundry dust, alumina, cement mill discharge cement, the carbonization furnace Cheung Wah matter, lime, corundum, plastic, iron oxide, coke, coal. The filtration velocity 0.28 to 0.450.4 to 0.650.45 to 1.01.0 to 2.0 m / s.

Talc, coal, blast cleaning dust, fly ash, ceramic production of dust, carbon black (secondary processing), a pigment, kaolin, limestone, mineral dust, bauxite, cement (from the cooler). The filtration velocity 0.30 to 500.50 to 1.00.6 to 1.21.5 to 3.0 m / s.

II. According to the number of bags

Calculated the total filtration area and the area of ??the single dust bag, you can calculate the bag number. If the the bag room number of each bag is determined, you can also calculated the entire precipitator room number. Although the the precipitator design or selection in the need to determine the number of rooms, but the site layout and easy maintenance considerations, often more than six rooms in addition to sitting room as the double row. Less than 5 chamber precipitator of each chamber is given as a single row.

Selected parameters, dusty gas flow, the nature of the concentration and dust dispersion, wettability, viscosity, etc. In addition to the above two are selected the baghouse filter wind speed parameters. Understand these parameters, we can easily select the size of the baghouse filter wind speed in order to improve the operating efficiency of the dust collector, thereby reducing costs.

Xi'an encourage coal enterprises to use the baghouse filter PM2.5

A boxy metal box, known as the "baghouse" filter out the vast majority of the coal-fired boiler of PM2.5. Yesterday, the city held to promote the site will promote and encourage coal enterprises to use the bag dust removal technology.

Yesterday, the comprehensive management of the coal-fired boiler flue gas to promote the site will be held in the western suburbs of Xi'an Thermal associated plant. The person in charge of the plant surnamed Zhang told reporters, pointing to a blue boiler compartment, suspended vertically in the blue metal box with more than 10 cloth bags, when the smoke through the fan into the boiler chamber , cloth bags layer-by-layer filter, dust blocked out, purify the air through the open bag discharge port to 80 mg per cubic meter compared to the general coal-fired boiler exhaust soot, bag dust removal technology dust concentration is reduced to less than 30 mg. "The whole process there is no pollution, very environmentally friendly." The official said.dust filter

It is understood that the "bag" low emission concentration of dust removal technology, energy consumption for electricity, cement, metallurgy, chemical industry, when the cloth reaches the end, just want to change a number of "bag" can generally use 3 years.

According to statistics, the coal-fired pollution is one of the city's three major sources of pollution, accounting for about 20% to 25% of the city's PM2.5. In addition to The garrison unit coal-fired boiler being further Mopai the outside, the city's various types of coal-fired boilers a total of 820, produced by burning coal, sulfur dioxide, nitrogen oxides, soot emissions total of nearly 200,000 tons. This year the city will invest nearly 50 billion yuan, removal of the 450 sets of 20 tons of steam boilers. Coal enterprises to promote the baghouse will be retained, in order to reduce emissions as much as possible.

Xi'an yesterday harvest blue skyfilter media

Xi'an Evening News both April 9 blue sky, on the 10th, the city re-harvest a blue sky. Monitoring preliminary data showed yesterday, is expected to maintain the blue sky. This is since the beginning of this year, the city's first consecutive blue sky.

Monitoring of the environmental protection department, April 10, the city's air quality index of 98, the air quality is "good". This is following the April 6, April 9, the city this month, 3 blue sky.

Metric Hydraulic fittings compensate the importance of design

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valve block - China Manufacturer

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metric hydraulic fittings of various media delivery channels is an indispensable component of industrial production processes. Like a human, the pipeline is the blood vessels of the human body. The raw material input pipe is arterial blood vessels, such as the metallurgical indust ry, cold air, hot air, gas, steam, oxygen, nitrogen, argon, piping, etc.. The output pipe vein: smoke Road. Which a vascular problem, people will get sick, does not work. sae hydraulic fittingsPipeline designed to do the following: ① pipeline system design to correct. Piping design and mechanical equipment selection is essential. (2) pipeline system design and manufacturing of the equipment to be correct, the quality is better. : Equipment design must meet the conditions of piping technology, the manufacturing process to ensure product quality. ③ pipeline installation and installation of equipment to be correct. Especially civil foundation design to be correct, you should ensure that it meets the conditions of the force of the design of piping; second is the correct installation of the pipe rack and compensation. (4) pipeline operation and management, and process operation to be correct. Make sure tha t the by design technology conditions.hydraulic hose assemblies

Analysis of Processing prospects of oral denture

Recently, news came from Shandong Dental Exhibition Organizing Committee, Dental Exhibition held in Qingdao International Convention and Exhibition Centre on 4-6 July 2013 in Shandong, has entered the most popular investment in the breeze stage, which denture processing area in the breeze progress greatly accelerated, the manufacturers are actively involved in the situation is gratifying.filter bag manufacturers

Denture processing of domestic market-oriented operation starting from the early 1990s in South China, the dental labs densely concentrated in the East and South China. The development of dental labs in the South relative to the North, its technical level and scale are showing more developed situation, the development of the northern market has much room for improvement. The same time, private ownership dental labs account for a large proportion of the market in the north, which resulted in small-scale, highly competitive situation at the northern dental labs. Compared to the MERCOSUR, the Beijing market the lack of an effective and broad platform, 2013 Shandong oral exhibition should be fixed from time to time, increase the denture processing the breeze investment and propaganda, on the basis of previous oral Equipment for North denture processing market development, provides a good trading platform. It is reported that since the denture forum on investment breeze, the active participation and cooperation of Northern denture processing manufacturers, the manufacturers would like to take this opportunity to seek the development of the industry.filter bag cages

It is understood that the Shandong Ka Chung denture denture processing one of the exhibitors of the exhibition, the company appointed by the Shenzhen site at the end of 2003 the world Kite Capital - Weifang. After years of ups and downs, has become has Weifang Jia Delong denture Co., Ltd., Zhucheng Ka public dental technology R & D Co., Ltd., Weihai Jia public denture three subsidiaries Development Corporation. The company has introduced Germany Wieland, Germany VITA, BEGO, Germany, the United States, Japan and other international advanced equipment and technology. As the leader in the same industry in Shandong denture, Shandong Ka public denture will carry metal porcelain teeth series, precious metals series, titanium series, the series of all-ceramic cosmetic dental implant denture products at the 2013 Shandong Dental Exhibition, Shandong denture oral market brought about by the development of global brands advanced equipment, advanced technology and management concept and all-ceramic implant, cosmetic teeth, and other high-end products.water filter bags

World Yixie trend impact on China

Developed countries in the world economic crisis has caused the cost of public health services as a whole dropped from the original purchase low-end devices and low-value consumable products of developed countries had to use products from developing countries, in order to not less than the original standards of medical care, "alternative . " Therefore, the next period of time, the medical device products from developing countries will continue to be the main destination of imports of developed countries.

Medical equipment high-end equipment and cutting-edge technology such as cloud diagnosis, multi-mastered by the developed countries, they rely on technology capital and market channel edge into emerging markets, and has the right to speak, emerging markets, high-end equipment technology import and localization will play an active role.

In the medical device industry, SME has an absolute number, especially small and micro medical device technology companies is the main research and development of new medical devices, key acquisition targets for large companies. Relatively mature companies and a leader in the field of enterprise more to become the object of multinational mergers and acquisitions, in order to eliminate competition, and through its own brand marketing strategy to expand market share in a particular country, continues to enhance its own the impact of brand marketing, the end of the original brand and the unique strategy.dust filter bag

Medical imaging equipment digitization and information technology with the Internet technology to provide a reliable help for remote medical diagnosis and treatment, and to improve the remote and backward areas of medical diagnosis and treatment level, at the same time also can be with the surgical robot implementation of remote operation, or the guidance of the front through modern means of communication surgery operation, to immediate surgery program to improve the local can not be solved or spatial distance can not visit the site to achieve a high standard of medical technology. In contrast, the extensive application of the Internet to provide more realistic follow-up of patients after preoperative diagnosis possible, but also provides the basis for worldwide service outsourcing.

Currently, modern medicine to speed up the early detection, accurate quantitative diagnosis, micro non-invasive treatment, individualized treatment, intelligent direction development, innovation and development in the field of medical equipment have made new demand. Disease to the health center medical model transformation process for the state of health of the grass-roots, families and individuals the direction of identification and control, early warning of disease, health management, rehabilitation and health care is becoming a new hotspot, further medical The equipment in the field of innovation and development of new demands.needle punched felt

In the next five to ten years, China's medical equipment industry and the degree of association of the world's medical equipment market will become increasingly close, China's medical device manufacturing processes, application of new materials, the level of research and development, marketing network is bound to have a huge impact, to promote China's medical equipment products from low-end to high-end products to high value-added transformation. Key products, such as images, immunization, vaccine, biochemical, hemodialysis, monitoring, high-end supplies and implants and family rehabilitation supplies, R & D and investment will exceed the "bottlenecks".filter bag manufacturers

The medical device industry in China is a sunrise industry, such as from the direction of the future development of medicine, to seize the initiative in the international market environment, the domestic market policies and their own development strategies of the three linkage process, will become the industry leader.

The status quo of China's medical equipment industry

To the end of November 2012, China has more than 1.6 million medical device manufacturers, state-owned enterprises, foreign-funded enterprises, private enterprises accounted for 3%, 37% and 60%. Among them, the enterprise value of billions of dollars more than 200; enterprises of more than one billion yuan less than 20, and wholly foreign-owned, joint ventures accounted for the vast majority, become the main force of China's medical equipment industry.

Three regions of the Pearl River Delta, Yangtze River Delta and the Bohai Bay rely on the region's industrial, scientific and technical personnel, the basis of clinical medicine and policy advantages, the three major industry gathering area of the medical device industry, total output value of the three regions and sales and account for more than 80% of the national total.bag filter manufacturers

Among them, the Yangtze River Delta and the Bohai Bay area of medical device manufacturing industry is a good foundation, a combination of old and new features in the adjustment and reorganization; township enterprises developed Yangtze River Delta, Jiangsu there are strong organic chemical industry, medical disposables prominent development ; less the original medical equipment manufacturing industry in the Pearl River Delta, the modern medical equipment manufacturing benefited from the reform and opening-up policy, the introduction of foreign capital, as well as coming home appliances and electrical manufacturing industry, medical equipment industry come from behind, although on the total output value as the Yangtze River Delta and the Bohai Bay area, but structural advantages of medical equipment and technology or the main product added value and the size of the Pearl River Delta, Shenzhen is ranked top in the country, is the jewel in the national medical device industry .bag filters

2010 to 2011, China's medical equipment industry mergers and acquisitions significantly accelerated. Specialization and diversification through mergers and acquisitions, the main direction of development of the medical device industry. Mindray Medical WEIGAO, diving medical, music universal health care has been through joint ventures, mergers and acquisitions to diversify, to become integrated leader. Minimally invasive medical Comfort Medical Trauson Medical Andon Health, Yang Pu medical, Xinhua Medical is a leader in the segments.

Domestic medical equipment

Product differentiation and innovation

From the main varieties of the import and export, in 2012, the amount of imported medical devices in China reached 100 million U.S. dollars level products have 31 varieties, which generic diagnostic equipment, color ultrasound diagnostic apparatus, to make up for the rehabilitation of the physical defects appliances, X-ray tomography apparatus, endoscopy, medical tubing, magnetic resonance imaging device, imported products mainly to high-value-added products. Orthopedic products increased 72.59%, some products involving plastic surgery equipment, indicating that such products has recently been universally welcomed, but also with China in recent years, improved living standards, people external to the attention of the United States.

China's medical equipment exports more than one hundred million U.S. dollars in 2012, there are 43 categories of products. The product has certain advantages in the international market: cotton wool, gauze, bandages, disposable syringes, color ultrasound diagnostic apparatus, X-ray tomography apparatus, the patient monitor. Cotton wool, gauze, bandages and exports in 2012 was $ 875 million, accounted for 60% -70% market share, to become China's major bulk passive export products, disposable syringes exports 453 million U.S. dollars, the export value of color ultrasound diagnostic apparatus $ 428 million, X-ray tomography apparatus exports of $ 320 million, the patient monitors exports of $ 328 million.bag filters

From the product structure, EU, U.S. and Japanese medical device manufacturing high-end equipment and high-value consumables. For example, up to 80% of the United States, Germany, and Japan exported every year, X-ray tomography apparatus share of global exports; Ireland, Switzerland and Sweden prior to export five countries export pacemaker cent of the global share of nearly 90%.

The advantage of the power of the three traditional medical equipment industry in the United States, Germany and Japan also vary. The United States in terms of high-end imaging equipment, consumables and have the absolute leading edge, general purpose, Johnson & Johnson, Abbott, Becton Dickinson, Boston Scientific, Medtronic, Philip medical large number of multinational companies; Germany aspects of interventional devices in high-value competitive in the global force is relatively weaker than the United States, Siemens come out on top in the field of imaging equipment; Japan's traditional industries imaging equipment, Toshiba, Shimadzu, Hitachi and other multinational companies.

Over the past decade, China's medical equipment industry structure, product quality are major changes, especially patient monitoring, medical imaging equipment, clinical laboratory equipment and minimally invasive treatment changed significantly, stereotactic intensity focused ultrasound therapy system, excimer laser eye aberration correction system, body rotation Gamma Knife, sleep monitoring system and a number of innovative products with completely independent intellectual property rights.bag filter

In the international market, China's current competitive products mainly medical dressings, disposable supplies, and color ultrasound diagnostic apparatus, X-ray tomography instrument, such as small and medium-sized equipment, product structure after decades of development, has been optimized, but high-tech medical equipment is still short board, the medical device industry in China is still a big gap compared with developed countries.

This pattern formation and developed countries, especially in the medical device industry in Europe and the United States on the development of first-mover advantage, the differences in industrial structure and promote a higher level of health care expenditure is closely related to the development of the medical device industry in the country.

Domestic medical equipment upgrading the industrial structure is still a long way to go

The current situation of the domestic medical equipment is a common theme, but had to face the problems of domestic medical equipment is generally low-level redundant construction, such as ultrasound, a plethora of vendors, but not high-tech, each other "cottage" serious, although sales market share data look good, but the actual profit margin is very low, this is clearly not the case people would like to see.dust filters

Since 2009, relatively rigid demand of medical device products, with the changes of disease spectrum of human disasters, global medical device trade performance increasing trend. The institutions of KaloramaInformation predicted that the world medical equipment trade annual growth rate remained at about 8%; global customs data analysis, we found the world in recent years, medical equipment trade growth in the range of 8% to 11%.air filter bag

With the strong development trend of the global medical equipment, medical equipment in China as an emerging industry, a good momentum of development. By the end of 2010, the national medical equipment enterprises above designated size industrial output value has exceeded 100 billion yuan, a product category is complete, innovation ability, the market demand is very strong sunrise industry. Medical devices percentage of GDP increased from 0.24% in 2007 to 0.29% in 2011, to maintain the stability of high-speed growth. The scale of import and export trade is also increasing year by year. But the fly in the ointment, the core value of China's medical device products remain to be excavated.

What kind of water purifier can effectively remove water scale

What kind of water purifier can effectively remove scale. I believe that is no stranger to scale for any one person, because it was almost our lives "closely related" almost water can be found on the scale of the figure, in fact, the main component of the scale by calcium and magnesium ions matter and water other impurities, clinical medicine show that long-term consumption of higher levels of calcium and magnesium ions in water, the human body is hazardous, easily lead to stones; another kind of water affect our lives, for example, be water heaters, water boilers cause within bile corrosion, precision control failure. Net of the spring water purifier experts concluded the following main points: First, heating equipment fouling, waste fuel, reduce the thermal efficiency of the heating equipment; affect the safe operation of the electric water heater; affect human health, easily lead to gallstone disease generated.absorbable suture

How to eliminate scale lifting stones threat, protection of machinery and equipment.

The way to eliminate scale, water purifier major water purifier brands are basically out of scale models, then how to remove the scale of it.

Together to understand the water purifier market several models can go out and scale.

1 water softener

Water softener is the hardness of the water quality or water softening demand, calcium and magnesium ions removed in order to achieve the purpose of softening the water quality. The water softener is generally the raw materials used to soften the resin, softening the resin ion into the calcium and magnesium ions in the water, so as to achieve the purpose of the removal of calcium and magnesium ions. Also need to further filter softener softener only solve the problem of reducing the water hardness, can not solve the removal of harmful contaminants in water, household use water softener is generally used in laundry, bath, wash, etc., used for drinking water to .lap sponges

2 water machine

So-called pure water, pure water is filtered out of the water quality standard, pure water is the only water molecules of water. All magazines of the raw water has been filtered out, of course, also include the water hardness of calcium and magnesium ions. Pure water filtration principle is to use precision 0.0001um RO reverse osmosis membrane technology, all the water all greater than 0.0001um of particulate impurities, bacteria, viruses, heavy metals, ions filter out pure water.

Market research water purifier squandering charming eyes

Previously, a pair of husband and wife for 20 years do not drink tap water news caused great concern, and it is based on water quality concerns, home water purifier is as a barrier resist unhealthy drinking water. It is understood that from about 2001, household water purifiers began to occupy in the market place, but now is a wide variety of different quality. Over the past decade, various brands and models of water purifiers have sprung up, play a variety of strange concept of a time "squandering For beautiful eyes, it was hard to choose.

According to public information, the country has more than 3000 water purifier business, but only 1,200 enterprises held by the relevant approvals of the Board of Health, which led to the water purifier market was mixed, uneven brand. The proliferation of counterfeit products on the market, the industry appears shoddy, the phenomenon of the real ones.nonabsorbable sutures

Jingdong Mall, reporters search for "water purifier", nearly 500 products, price from a hundred dollars to several thousand dollars, respectively, leading style, under the kitchen, one-piece, disposable. A clean water source (300,070, stock it) brand of water purifier, discounted price of 199 yuan; 3M 250% net share price, up to 3399 yuan.

From the water purifier filter material, most of the inner core will use PP cotton, activated carbon and other materials, higher prices will use to RO reverse osmosis membrane. According to the introduction, the small pore size to nanometer RO reverse osmosis membrane, under a certain pressure, the water molecules through the RO membrane, and the other source of water, inorganic salts, heavy metal ions, organics, colloids, bacteria, viruses and other impurities can not through the RO membrane, thereby through pure water and not through the concentrated water strictly separate.

Judging from the water purifier brand promotion, almost every brand nominal water purifier can effectively filter out suspended solids in water, sediment, red worms, rust and other solid precipitates; also remove the organic matter, Harmonia odor, soluble inorganic salts, heavy metals; also can filter bacteria, viruses, and by further filtering, to improve the taste, to achieve the effect of drink straight. Part of the water purifier brand will also be able to retain the beneficial minerals, adjust the PH value as a selling point.non woven swabs

"And everyone says their own good, do not know how to pick." Reporter visited the store, met Ng buy water purifier, she said, and went a lap down, a little confused. "Some salesman, said filter the more the better the water quality, and some sales staff said it would not look the same products, the price is a big difference, refractory ah!"

This reporter has learned, has been the use of water purifier consumers, most people choose price of the product are concentrated between 1,000 yuan and 2,000 yuan, the majority of domestic brands. 3M brand family kitchen water purifier using imported materials claimed, the retail price of up to three or four thousand.

How to choose and maintenance of water pollution, water purification equipment

Rivers and lakes have been seriously polluted groundwater pollution spawned a number of "cancer villages", the implementation of the "new national standard, drinking water still can not drink straight ...... when people drink safe water? Ministry of Environmental Protection data show that half of China's urban groundwater pollution is serious, 57% of groundwater monitoring point and poor water quality, or even very poor. 90% of the urban river is polluted to varying degrees, about half of urban groundwater pollution is more serious, nearly 200 million rural residents do not drink water on standards-compliant.

Not long ago, "Life Times" a web-based survey of 3,500 people involved in the show, 97% of the people are not satisfied with the drinking water: 42.9% of people do not like tap water scale, 35.1% of people think that the water smell, 22.6% of people think that water, debris, it is muddy. So many families turned to water treatment equipment: water purifier, water purifier, water softener ...... in the end how? What precautions? The newspaper has invited experts to provide you a detailed analysis.surgical suture

Whether the effect of water purification equipment

Reporters interviewed several residents of the district of Chaoyang District, Beijing, they said not to drink tap water, more than 80% of people said that the installation of water purification equipment at home.

The enhancement of the public demand for clean water, but also to the market increasingly popular. The reporters found that the water purifier, water softener, water and other products currently on the market, domestic prices between 1000-4000, the import price of NT $ 10,000. So expensive products still sell very fire. A lot of people admitted that the installation of water purification equipment is to get the whole family to drink safe water. The reporter interviewed found that the market many brands of water purifiers in promoting, in addition to the effect of guaranteeing clean water, but also claimed to have mineralization, adjust the PH value and other health effects. A brand store in Beijing appliance stores, sales staff told reporters, their water purifier water purification equipment also added at the end of the device, to increase the variety of trace elements needed by the body. The sales staff also declared: "the water purifier there are more magical effect, you can adjust the PH value of water, filtered water weakly alkaline, health care would be better. Therefore the price will be more expensive."surgical blade

A variety of water purification equipment really so Shenxiao? Beijing public health researcher at the Institute of drinking water Zhao Feihong admits: "adjust the PH value and mineralization, the Ministry of Health has approved, but last year had not approved, the approval is valid up to 3 years. Recommendations consumers in choosing a water purification device, do not overdo the pursuit of these additional features, but to pay attention to the fundamental role of the water purifier, purification function is good or bad. "claims for water purifier on the market a variety of health functions, as early as Some experts have put forward different views. Fujian Huaqiao University Materials Science and Engineering Paul Lee, said: "through the water purifier added trace elements unscientific not safe manufacturer better dissolution of the material added to the device, but this is not only due to different, but also to vary , simply add some minerals in the water purifier, may also be a health hazard. "

The experiments showed that activated carbon and reverse osmosis best

Miss Wu's troubles are not isolated cases. A wide variety of water purifier on the market today, many brands, the concept is complex, leading to most consumers lack the ability to determine the quality of water purifier. It also makes many consumers to take in the selection, or price, or to listen to the salesperson side of the story, often making the wrong choice.

According to the reporter's investigation, in accordance with the degree of filtration, water purifier on the market can be divided into coarse filter (activated carbon adsorption), ultrafiltration and reverse osmosis three types of coarse-to-fine filter mode, the price difference is mainly because of the use of the number of filter and quality vary.disposable syringe

Among them, more than 80% of the water purifier market-based activated carbon filter. Activated carbon water purifier granular activated carbon, powdered activated carbon or compressed activated carbon for water purification media, because of its well-developed porous structure caused by the high specific surface area, can absorb a variety of organic substances and harmful heavy metals, removal of organic olfactory substances.
 Ultrafiltration water purifier using ultrafiltration technology, selective separation of substances through the porous structure of the membrane surface, and retention. When tap water flows through the membrane surface under a certain pressure, the small water molecules through the membrane, bacteria, macromolecules, colloids were trapped. A reverse osmosis membrane filtration technology, the core is a microporous filter, only the water molecules and minerals smaller than water molecules through the membrane and retained for drinking; are not passed through the membrane of bacteria, viruses, scale, pollutants, minerals, concentrated Be water discharge, thus ensuring water purity of water.

However, the three filter modes are insufficient. Activated carbon main indicators of organic matter removal effect, but with the increase in flow capacity, removal efficiency decreased very fast; ultrafiltration membrane can not remove the residual chlorine in the water and pollution compounds; reverse osmosis water purifier water, generally The maximum water rate of only 8% -10%, a glass of water purification needs two or three cups of wastewater drain, the higher cost of clean water is a waste of water.

For these types of water purification, Hongkou District, Shanghai Center for Disease Control has done a water purification efficiency experimental results show that activated carbon and reverse osmosis best, only the worst of activated carbon, ultrafiltration as good as reverse osmosis. Experts suggest that if you do not consider the quality problems, three water purifier, each have their own characteristics, choose what kind of water purifier, also needs to be flexibility to choose according to the actual situation, the higher the better is not the ability to remove the foreign body .disposable scapel

Water, chlorine, heavy odor, organic matter content of more tap water, buy a large amount of activated carbon home water purifier. Activated carbon residual chlorine, odor strong adsorption, the removal of organic matter. However, because of the obvious limitations of activated carbon, used in conjunction with ships and other water purification equipment.

The air purification buy trilogy

Recent past, the continuous emergence of a wide range of fog and haze, air quality problems. In view of this situation, the Chinese Center for Disease Control experts said publicly that qualified families can use an air purifier to reduce indoor particulate matter pollution.

From the market point of view, the air purifier has also become one of the fastest-growing sales of home appliances. According to the China Electronic Chamber of Commerce Consumer Electronic Product Investigation Office statistics show that in the fourth quarter of 2012, an air purifier volume of retail sales rose more than 11%. Hot in the market attracted the industry to the rapid expansion of the product after another, for a time difficult to identify the consumers in the purchase. The experts said, to buy air purifiers to choose from the following aspects: the indoor area, sources of pollution, the use of object select purifier; selected according to the geographical, habits humidification.

Step 1: get to know Purifyingchromic sutures

Purifier brand, model, purification in different ways, and the price falls far short. Understanding of the principles of various purification techniques and their respective advantages and disadvantages for consumers usually less exposure to such products, the first step is rational to buy.

Purification due to sources of pollution and health, to understand the purification must first understand the pollution. Indoor pollution comes mainly from several major aspects: dust pollution, can be adsorbed to particulate pollution, nicotine pollution, air pollution from kitchen, unpleasant odor, bacteria, viruses, as well as decoration caused by chemical contamination (such as formaldehyde). Only for different pollutants, to take corresponding purification, can be more effective to achieve optimal purification.

Activated carbon adsorption technology

This is one for the widest range of the most basic purification.

Advantages: strong adsorption capacity, the effective absorption of harmful substances in the air, such as dust, particles, free molecules, bacteria, etc..

Disadvantages: only temporarily adsorption increased with temperature, wind speed, the adsorbed pollutants may be freed again, so often to clean or replace the filter material, to increase the use of cost.

Negative oxygen ion technology

Also called negative oxygen ions in the anion is a negatively charged gas ions. It reduction of pollutants from the atmosphere, nitrogen oxides, cigarettes produce reactive oxygen species (oxygen free radicals); and positively charged particulates make it without charge after the settlement.suture needle

Advantages: the effect of secondhand smoke purification significant and effective dust; effectively enhance blood oxygen carrying capacity, and effectively promote human metabolism, improve sleep; eliminate unpleasant odor effect is obvious; can effectively eliminate high voltage static electricity generated by the computer, TV, etc.; protect eyesight.

Disadvantages: life is very short, so they need sustained release; purifying effect of formaldehyde, benzene and other pollutants.

Ozone Technology

A basis for purification technology, used in the vast majority of air purifiers.

Advantages: the inactivation of bacteria responsive, rational use is internationally recognized as the most environmentally friendly and most thorough purification.

Disadvantages: excessive ozone on the human body there are certain hazards.

ESP technology

High-pressure electrostatic adsorption principle, filtering pollutants in the air, the more popular applications.

Advantages: efficient removal of particles in the air pollutants, such as dust, soot, pollen, cigarette smoke and fumes from the kitchen; effective absorption of gaseous pollutants and pathogenic micro organisms in the air filter.

Disadvantages: easy to produce ozone, particulate matter and other particles gas only, almost no effect on the removal of formaldehyde, benzene, TVOC and other chemical contaminants.

Low temperature the asymmetric plasma air purification technology

Make the air between a large number of plasma impact, step by step through the electrochemical reaction of toxic and hazardous gas and live virus, bacteria and other rapid degradation.

Advantages: the technology of clean indoor air of human coexistence; energy saving, and free washable; disinfection of viruses, super purification capacity with fast, efficient and eliminate the odor, eliminate static function, increase the oxygen content and many other advantages.

Disadvantages: not yet universal, the price is opaque.

Molecular complexation

Use of formaldehyde and ammonia water soluble characteristics, the indoor air is introduced into the purifier, the wherein toxic gases pass into the molecular complexing agent (formaldehyde scavenger) Complexation exploded system consisting of water, pollutants in the indoor air will eventually transforming irreversible neutral macromolecular chains of solid substances, to exclude relatively clean air, and ultimately achieve the purification effect. Is really effective to completely remove the decoration pollution, chemical pollution technology.

Advantages: the interior decoration pollution caused by formaldehyde, benzene, TVOC effect is more obvious.

Disadvantages: need regular replacement of the complex ion-containing solution or similar components, the use of high cost.

The photocatalyst catalytic decomposition technique

In the light irradiation, using a specific wavelength of light energy as a catalyst (oxidation-reduction reaction), oxygen and water molecules in the surrounding excitation into the activity of free radicals. These free radicals decomposed almost all organic substances harmful to humans or the environment and some inorganic substances.

Advantages: high purification efficiency.
Disadvantages: having to ultraviolet radiation can play a role, it takes sun light, without light, need extra UV lamps, but too much ultraviolet radiation is harmful to the human body.

HEPA high efficiency filtration technology

HEPA is an internationally recognized high efficiency filter. HEPA filter consists of a stack of folded back and forth consecutive sub-glass fiber membrane, forming wavy washer is used to place and support the filter media. HEPA high efficiency particulate filter purifying performance of its proportional to the surface area.

Advantages: filter particulate matter effect is very obvious, for particles of 0.3 micron purification rate of 99.97%.

Disadvantages: dust the serious regional use will shorten the life HEPA need to be changed frequently, the cost is high.

Step 2: Learn the standard indicators

The main role of the reducer

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geared motors - China Manufacturer

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Gear unit is a power transmission mechanism, and a velocity converter using the gear, the number of rotations of the motor (motor) is decelerated to the desired number of rotations, and to obtain the larger torque of the bodies. A wide range of applications for power transmission and motion of bodies reducer. Traces of it can be seen in almost all kinds of mechanical transmission system, common in everyday life, from transport ships, automobiles, motorcycles, heavy machinery used in construction, mechanical industry processing machinery and automated production equipment appliances, watches and clocks, and so on. Its application gearhead application can be seen from the transmission of power to a small load, and the precise angular transmission, and in industrial applications, the speed reducer having the reduction and increase the torque function. Therefore widely used in the speed and torque of the conversion apparatus.
cycloidal speed reducer

A major role
1 and spin-down at the same time increase the output torque ratio of torque output by the motor output multiplied deceleration ratio, but be careful not to exceed the rated torque reducer;
2, deceleration, while reducing the inertia of the load a nd inertia reduction of the gear ratio squared.
Working Principle

Deceleration machines generally used for the transmission equipment of the low speed high torque motor, the internal combustion engine, or other high-speed operation of the power through the gear unit input shaft of a small number of teeth gear meshing the large gear of the output shaft to achieve deceleration, Common there will be a few on the same principle of gear reducer achieve the desired slowing effect, the ratio of the size of the gear teeth, the transmission ratio.speed variator

Types of reducer

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Reducer is a relatively sophisticated machinery, and its purpose is to reduce the speed and increase torque. It has a wide variety of different models, different types have different uses. A wide range of reducer, gear reducer, worm gear units and planetary gear reducer can be divided according to the type of transmission; accordance with the Transmission stage can be divided into single-stage and multi-stage reducer; gear shape can be divided into cylindrical gear reducer , bevel gear reducer and conical - cylindrical gear reducer;, can be divided into the drive arrangement of the expansion, the shunt and coaxial reducer. Following is commonly reducer classification:helical worm gearbox

      (1) cycloid reducer
      ⑵ hardened cylinder gear reducer
      ⑶ planetary gear reducer
      ⑷ soft tooth surface reducer
      ⑸ tricyclic reducer
      ⑹ crane reducer
&nb sp;     ⑺ worm reducer
      ⑻ shaft mounted gear surtace
      ⑼ CVTreconditioned gearboxes