Working principle of self-cleaning filter element (suction type)

The water enters from the inlet, firstly passes through the coarse filter to filter out larger particles of impurities, 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. .

When the pressure difference of the filter element reaches the preset value of the filter element, the automatic cleaning process will begin. During this time, the supply of clean water will continue to flow, the cleaning valve will be opened, and the water pressure in the cleaning chamber and the sewage suction device will drop significantly. The pressure difference generates a suction force between the suction pipe and the cleaning chamber through the suction nozzle, forming a sewage suction process. At the same time, the electric motor of the filter element drives the sewage suction pipe to make a spiral motion in the axial direction.

The combination of the axial movement and the rotational movement of the dust collector cleans the entire inner surface of the filter screen perfectly. The entire flushing process takes only tens of seconds. The drain valve closes at the end of the cleaning. The filter element begins to prepare for the next flush cycle.

Working principle of self-cleaning filter element (brush type)

The water to be treated enters the body from the water inlet, and the impurities in the water are deposited on the stainless steel filter screen, thereby generating a pressure difference. The pressure difference between the inlet and outlet is monitored by the differential pressure switch. When the pressure difference reaches the set value, the electric controller sends a signal to the hydraulic control valve and the drive motor, which triggers the following actions: the motor drives the brush to rotate, cleans the filter element, and opens the control valve at the same time. For sewage discharge, the entire cleaning process only lasts for tens of seconds. When the cleaning is over, the control valve is closed, the motor stops rotating, the system returns to its initial state, and the next filtration process begins. After the equipment is installed, technicians will debug it, set the filtration time and cleaning conversion time, the water to be treated enters the body from the water inlet, and the filter element starts to work normally. The motor signal is driven to trigger the following actions: the motor drives the brush to rotate to clean the filter element, and the control valve is opened to discharge sewage. The entire cleaning process only lasts for tens of seconds. When the cleaning is over, the control valve is closed, the motor stops rotating, and the system Return to its initial state and begin to enter the next filtering process.

Detailed explanation of self-cleaning filter element

The self-cleaning filter element is composed of the core filter unit of Jiangqi environmental protection and related control components. Its ingenious design is efficient and easy to maintain. Based on a variety of working modes, it can flexibly deal with fluidity and different types of impurities. liquid.