First,Working principle
The water of the brush type self-cleaning filter enters from the inlet, first filters out the larger particles of impurities through the coarse filter, and then reaches the fine filter. During the filtration process, the fine filter gradually accumulates dirt and impurities in the water to form a filter impurity layer. Since the impurity layer accumulates on the inner side of the fine filter, a pressure difference is formed between the inner and outer sides of the fine filter.
Brush type self-cleaning filter When the liquid containing solid phase enters the differential pressure filter through the water inlet, as the filtration process continues, the impurities in the liquid are trapped on the surface of the filter element, causing the pressure to increase, and the filtration resistance to increase. The filtration efficiency decreases. When the impurities are trapped to a corresponding degree, and the pressure difference on both sides of the filter element reaches the set value, the differential pressure controller provides a signal to the control system, and the control system provides the received signal to the electric valve, and the electric valve automatically opens at Under the cooperation of hydraulic or electromechanical, the electric valve will automatically close the valve after the sewage outlet is discharged for a period of time. When the pressure difference on both sides of the filter element reaches the set value again, repeat the above operation to achieve the filtering effect.
Second,Fault judgment and elimination of brush type self-cleaning filter
1. The motor shaft does not rotate, and the motor circuit is not connected if there is no noise. Check that the circuit is plugged into the geared motor connection.
2. There is a noise in the motor, and the stainless steel brush is wrapped by foreign objects. Power off to prevent the motor from burning out and notify the manufacturer for maintenance.
3. No sewage, there is a problem with the motor shaft rotating the sewage solenoid valve. Check whether the drain solenoid valve is blocked or damaged: Insert the drain solenoid valve connection plug tightly into the pressure sensor plug.
4. The relay does not respond, the power cord is not connected or the relay is damaged. Connect the power cord terminals and replace the relay.
5. There is water leakage at the sealing gland, ① the packing is not pressed tightly and ② the packing is damaged.
The above is the relevant content of the brush type self-cleaning filter introduced by the editor, I hope it can be helpful to you.
