The core principle of self-cleaning air filter of air separation equipment is "filtration+online automatic ash removal" closed-loop operation, and the filtration efficiency can be maintained without interruption. Under the negative suction pressure of air compressor, the dusty air is uniformly distributed through the guide plate and passes through the filter cartridge. The dust is intercepted on the filter material surface by gravity, static electricity, inertia and other comprehensive effects, and the clean air flows into the clean air chamber and enters the subsequent system; The equipment is equipped with a differential pressure sensor to monitor the resistance of the filter material in real time. When the resistance reaches the preset threshold, the control system triggers the ash removal program. The high pressure pulse air reversely flushes the filter material, and the dust falls into the ash hopper. After the resistance drops to the initial value, the ash removal is stopped, so as to realize the ash removal while filtering.
Its core function is to ensure clean air intake, intercept dust particles in the air, avoid abrasion and scaling of air compressor impeller, blade and other core parts, and extend the service life of equipment; The second is to maintain the stability of the system, ensure the air cleanliness into the air separation unit, and prevent dust from affecting the subsequent rectification and separation processes; The third is to improve the operation and maintenance efficiency. The online self-cleaning function significantly reduces the frequency of manual cleaning and replacement of filter materials, lowers the operation and maintenance cost, maintains low resistance operation, and helps the air separation system operate in an energy-saving and efficient manner.
