Working Principle of Self Cleaning Filter
During the filtering process, the inner layer of the fine filter gradually accumulates impurities, and a pressure difference is formed on its inner and outer sides.
When this pressure difference reaches the preset value, the automatic cleaning process will begin: the drain valve opens, the hydraulic motor chamber and hydraulic cylinder of the main assembly release the pressure and discharge the water; the pressure in the hydraulic motor chamber and the suction pipe drops significantly.
Due to the negative pressure, the dirt on the inner wall of the fine filter is sucked by the suction nozzle, flows into the hydraulic motor chamber by the hydraulic motor, and is discharged by the drain valve, forming a suction process. When water flows through the hydraulic motor, it drives the suction pipe to rotate, and the hydraulic cylinder piston drives the suction pipe to move axially.
The suction assembly completely cleans the entire inner surface of the filter through the combination of axial movement and rotational movement. The entire cleaning process will last for tens of seconds. The drain valve closes at the end of the cleaning process, and the increased water pressure returns the hydraulic cylinder piston to its initial position, and the filter begins to prepare for the next flushing cycle. During the cleaning process, the filter continues to perform its normal filtering work.
The principle of automatic backwashing: As mentioned above, backwashing is achieved by opening the hydraulic valve and the action of the hydraulic cylinder piston, which are all controlled by the backwashing controller. The backwashing controller can accurately control the hydraulic valve and the hydraulic cylinder according to the pressure difference value transmitted from the inlet and outlet of the filter, and the power of the controller comes from the pressure of the pipeline itself.
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Grace
Email: grace@filtrationchina.com
Mobile/Whatsapp/WeChat:+86 17269571160
