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Current location: Air filter > News Center >Why air filter? Application of air filter?

Why air filter? Application of air filter?

Air filter Classification and Application
 
1. Primary efficiency filter G series coarse efficiency air filter is divided into eight varieties: G1, G2, G3, G4, GN (nylon mesh filter), GH (metal mesh filter), GC (activated carbon filter), GT (high temperature resistant coarse effect filter). Air filter (1) function: capture 1-5um dust particles (2) type: frameless and framed bag type (3) filter material: special non-woven fabric or glass fiber (4) efficiency: 60% - 95% @ 1-5um (colorimetric method). The primary effect air filter has the characteristics of low initial resistance, simple replacement, high economy and long service life. It is generally used for primary filtration of air conditioning system, return air filtration of clean room and pre filtration of local high-efficiency filtering device. There are mainly G1-G4 non-woven fabric primary filter, nylon mesh primary filter, metal mesh primary filter and activated carbon primary filter.
 
2. Medium efficiency filter F series medium efficiency air filter is divided into bag type and non bag type. Bag type includes F5, F6, F7, F8, F9, and non bag type includes FB (plate type medium efficiency filter), FS (partition type medium efficiency filter) and Fv (combined medium efficiency filter). With the characteristics of large filtration area and low resistance, medium efficiency air filter is widely used in central air conditioning and ventilation system, as well as in pharmaceutical, hospital, electronics, cosmetics, machinery, food and other industries. There are mainly bag type medium efficiency filter and plate type medium efficiency filter.
 
3. High efficiency air filter GK series high-efficiency filters are divided into diaphragm type high-efficiency filter and non partition high-efficiency filter. The clapboard high-efficiency filter includes GK (high-efficiency filter with partition), GKW (high-temperature resistant high-efficiency filter), GKA (high-efficiency filter with high humidity resistance); high-efficiency filter without partition plate includes gkyw (combined combined high-efficiency filter) and gkys (high-efficiency filter without partition board) Filter), gkyc (liquid tank without diaphragm high efficiency filter), gkyl (ultra low resistance diaphragm free high efficiency filter), gkyd (knife rest type high efficiency filter without separator), gkul (0.1um filter).
 
Why air filter?
 
1) Ventilation and air conditioning system needs air filter protection
 
Air conditioning maintenance personnel usually find the following problems after using the air conditioning system for a long time:
 
1. The fan, heat exchanger, air valve, pipeline and other parts have serious dust accumulation and odor
 
2. After several years of operation, the air volume and cold / heat treatment capacity are low, which is difficult to meet the original design requirements
 
3. There are black stains around the air supply outlet of the air conditioner
 
4. The indoor staff complained that the air was dirty and uncomfortable
 
5. The air filter resistance of clean room system increases too fast, even needs to be replaced in 1-2 years
 
6. For the metal / nylon mesh and chemical fiber non-woven fabrics which are long-term in the air conditioner, even if they are not cleaned, the resistance will not continue to rise
 
The main reason for these problems is dust. The so-called washable filter has limited resistance to dust. In addition to stopping the air-conditioning system for cleaning or replacing expensive system components, the more important measure is to add air filters with sufficient efficiency. The investigation and research in developed countries have proved that the glass fiber bag filter is the economic choice of users.  
 
2) All kinds of clean rooms are even more inseparable from the super efficiency air filter. The dust particle concentration between the indoor and outdoor is thousands of times different (just counting). In order to achieve the cleanliness of grade * *, high efficiency air filter should be set to filter the air entering the room.

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