Key points for self-cleaning air filter selection:
(1) Whether there is a suction port with a uniform flow channel, so that the air intake airflow does not interfere with each other, does not generate turbulent flow, and reduces local resistance loss.
(2) Choose a reasonable filter cartridge, pay attention to whether the filter material is oil-proof, waterproof filter material, good material has good dust peeling performance, easy to clean dust, and the filter runs under low resistance from beginning to end.
(3) Whether to adopt reasonable cleaning methods and methods. Compressed air is used for pulse injection, and the compressed air is directly injected into each filter element with the injection pipe to ensure that the resistance of the filter element will not increase.
(4) Due to the characteristics of overhaul of air separation equipment, determine whether the equipment maintenance cycle is reasonable.
(5) The filter design should have enough residual dust. Generally, it is about twice the air volume required for air separation.
(6) Whether a reasonable automatic control method is adopted. When the air compressor is designed, the pressure left for the front air filter and pipeline is certain, generally below 1500 Pa. This requires that the filter resistance should not be too high, which creates a contradiction for the filter itself. If the resistance loss of the equipment is too low, although it is beneficial to the output of the air compressor, the filtration efficiency is poor. If the resistance loss of the equipment is large, there will be It is beneficial to improve the filtration efficiency, but it will affect the output of the compressor. Therefore, the ideal state of the filter is to maintain a reasonable and relatively stable resistance value, which will not affect the output of the compressor, but also maintain a high filtration efficiency.
