What are the main types of primary air filters?
Release time:2019-11-20 source:
Air filter is widely used in many occasions, so it also leads to a variety of design forms. The main design forms of air filter are bag filter, plate filter and foldable filter. The bag filter was introduced before, and the primary effect plate filter is emphasized now.
Structure of primary effect plate filter
The primary effect plate filter is mainly composed of protective net, filter material and outer frame. There are also different materials for each part. The outer frame materials of the primary effect plate filter generally include paper frame, aluminum alloy frame and galvanized iron frame. The outer frame of the filter is used to fix the folded filter materials. The filter materials of the primary effect plate filter include non-woven fabric, nylon mesh, active carbon filter material, metal mesh, etc. These filter materials are packed into the cardboard in the form of folding. The dust particles in the incoming air are blocked between the folds by the filter material, and the clean air flows out evenly from the other side.
Characteristics of primary effect plate filter
1. The primary effect plate air filter screen is generally made of chemical fiber cloth, which has longer service life and higher filtering efficiency than the general glass fiber filter or artificial fiber filter. The composition and structure of the primary effect plate filter is relatively simple, and in addition to the heavy outer frame, the weight of other components is relatively light, so the overall weight is relatively light.
2. The plate type primary effect filter is equipped with a protective net, which can effectively protect the filter material from damage and prevent the damage of the filter material caused by the wind resistance pressure. Moreover, because many of its size designs are unified, it also has a good universal type.
3. The filtration efficiency of the plate type primary filter for particles ≥ 5.0 μ m is between 40% and 60%, which is commonly used in the primary filtration of air conditioning and ventilation system, as well as the pre filtration of central air conditioning and central ventilation system and large air compressor.
Application of primary effect plate filter
The primary effect plate filter has a wide range of uses and can be used as the intermediate filter of all air intake devices and exhaust devices. As a kind of filter equipment, the primary effect plate filter is often used to process the coarse filter screen of dust collection. The primary effect filter is used for the pre filtration of ventilation and air conditioning system of large buildings such as offices, meeting rooms, hospitals, shopping malls, airports, and the centralized ventilation and air conditioning system of general industrial plants or clean rooms. It is believed that in the future, the primary effect plate filter will be more widely used.
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