Self-cleaning air filter, when the air is inhaled by the air compressor, the dust in the air gathers on the filter cartridge, the filter screen is blocked, the resistance increases, and the pressure sensor detects that the resistance is too high, and the air compressor cannot inhale The required amount, the resistance signal is sent to the control system of the pulse controller by the differential pressure transmitter, and the system sends an instruction to the diaphragm solenoid valve to release the compressed air instantly. Carry out continuous automatic backflushing to achieve the purpose of self-cleaning.

Self-cleaning air filter, self-cleaning and blowback is programmed by the computer when the pressure difference between the front and rear exceeds a certain set value, and the self-cleaning and blowback mode command is issued, and there is a timing (program) self-cleaning mode (can be set by yourself) ) or constant pressure difference self-cleaning mode (can be set). When the current pressure difference exceeds the alarm value, it will automatically alarm, and the width of the blowback pulse (pulse refers to a physical quantity that changes suddenly in a short time and then quickly returns to the initial value) is controlled by the computer, and continuous automatic blowback is performed at intervals. It can also enter the manual mode for self-cleaning and backflushing until the pressure difference remains within the specified range. The initial resistance of self-cleaning filter is generally around 100Pa, the normal resistance range is generally set between 400-700Pa, the alarm resistance is generally set at 800-1000Pa, and the final resistance is set at 1200-1500Pa (according to the air compressor and Production needs to be set). Too low set resistance value will consume more back-blowing self-cleaning air volume, make the diaphragm solenoid valve operate frequently, shorten the service life of the valve and shorten the service life of the filter element, greatly increase the operating cost, and due to frequent self-cleaning and back-blowing The dust film of the filter element layer is destroyed, resulting in a large drop in gas filtration accuracy and efficiency.

Advantages of self-cleaning air filters:

(1) The filter cartridge has high filtration efficiency, small footprint, low resistance, long service life, and can resist water mist.

(2) Automatic back blowing to clean the dust to achieve self-cleaning. It can guarantee the uninterrupted operation of the air compressor for more than two years.

(3) In terms of equipment maintenance, the cost is low, the replacement is convenient, and it can be replaced without stopping the machine.

(4) The back blowing air is the processed air without oil, so there is no safety problem of the air separation unit.