The filter is composed of simplified Chinese, stainless steel screen, sewage part, transmission device and electrical control part. When the filter is working, the water to be filtered flows through the filter through the nozzle, and enters the pipe required by the user for the process cycle. The particulate impurities in the water are trapped inside the filter. In this continuous cycle, more and more particles are trapped, and the filtration speed is getting slower and slower, while the imported sewage still enters continuously, and the filter holes will become smaller and smaller, thus creating pressure between the inlet and outlet. Poor. When the large degree difference reaches the set value, the differential pressure transmitter sends an electrical signal to the controller, the control system starts the drive motor to drive the shaft through the transmission component, and at the same time the sewage outlet is opened and discharged from the sewage outlet. After the cleaning is completed, the pressure drop drops to a minimum, the system returns to the initial filtration state, and the system is operating normally.
The filter consists of a housing, a multi-element filter element, a backwash mechanism, and a differential pressure controller. The inner wall of the housing divides its inner cavity into two upper and lower cavities. The upper cavity is equipped with multiple filter elements. This makes full use of the filtering space and significantly reduces the volume of the filter. Rinse the suction cup. During operation, the turbid liquid enters the lower cavity of the filter through the inlet, and enters the inner cavity of the filter element through the partition hole. The impurities larger than the gap of the filter element are trapped, the pure liquid passes through the gap to reach the upper cavity, and is finally sent out from the outlet.
The filter uses a high-strength wedge-shaped screen, which automatically cleans the filter element through pressure difference control and timing control. When impurities in the filter accumulate on the surface of the filter element and cause the pressure difference between the inlet and outlet to increase to a set value, or when the timer reaches a preset time, the electric control box sends a signal to drive the backwash mechanism. When the backwash suction cup mouth is directly opposite the inlet of the filter element, the drain valve is opened, and the system releases pressure and drains water. A negative pressure zone where the relative pressure of the suction cup and the inside of the filter element is lower than the water pressure on the outside of the filter element forces some of the net circulating water from the outside of the filter element The foreign particles that flow into the inside of the filter element and are adsorbed on the inner wall of the filter element flow into the pan with water and are discharged from the drain valve. The specially designed filter screen produces a spray effect inside the filter element, and any impurities will be washed away from the smooth inner wall. When the pressure difference between the inlet and outlet of the filter returns to normal or the timer set time expires, the material flows continuously during the whole process, and the backwashing consumes less water, achieving continuous and automated production.
