Agricultural irrigation filters include sand and gravel filters, laminated filters, centrifugal filters, mesh filters, self-cleaning filters, hydraulic driven filters, fertilizer tanks, etc. Agricultural irrigation filters are widely used in agricultural irrigation. Generally, we only start using them directly after installation, but most people do not understand their operating principles. Only by understanding its operating principle can one be more proficient in using it. Today, the editor will take you to understandirrigation filterThe operating principle.

1. The water flows into the filter through the filter inlet, and when passing through the filter stack, the filter stack is tightly pressed together under the action of spring force and hydraulic force. Impurity particles are trapped at the intersection of the stack, and the filtered water flows out from the main channel of the filter. At this time, the one-way diaphragm valve is in the open state.

2. When a certain pressure difference is reached, or within a set time, the system automatically enters the backwash state. The controller controls the valve to change the direction of water flow, and the one-way diaphragm at the bottom of the filter closes the main channel. Backwash enters the four sets of nozzle channels, and the water pressure in the piston chamber connected to the nozzle channels rises. The piston moves upward to overcome the pressure of the spring on the laminations and releases the piston space at the top of the laminations.

3. At the same time, backwash water is sprayed at high speed from 35 * 4 nozzles on the four sets of nozzle channels along the direction of the tangent of the stack, causing the stack to rotate and evenly separate. The spray water washes the surface of the stack, and the impurities trapped on the stack are thrown out. When the backwash is completed, the direction of water flow changes again, the laminations are compressed again, and the system enters the filtering state again.