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.