Automatic Filter

Automatic Filter is a kind of precision equipment that uses the filter screen to directly intercept impurities in the water,

remove suspended matter and particulate matter, reduce turbidity, purify water quality, reduce system dirt, bacteria, algae, rust, etc.,

in order to purify water quality and protect the normal operation of other equipment in the system. Water enters the

self-cleaning filter body through the water inlet. Due to the intelligent (PLC, PAC) design, the system can automatically identify the degree

of impurity deposition, and automatically discharge the signal of the blowdown valve.

Working principle: Water enters the filter from the water inlet, first filters out the impurities of larger particles through the coarse filter

element assembly, and then reaches the fine filter screen, filters out the impurities of fine particles through the fine filter screen, and the

water is discharged from the water outlet.

During the filtration process, the inner layer of the fine filter screen gradually accumulates impurities, and a pressure difference is formed

on both sides of it. When this pressure difference reaches a preset value, the automatic cleaning process begins: the blowdown valve opens,

the hydraulic motor chamber and hydraulic cylinder of the main assembly release pressure and discharge water; Hydraulic motor chamber and suction

pipe pressure drops significantly, due to the negative pressure, through the suction nozzle to absorb the inner wall of the fine filter screen dirt, by the

hydraulic motor into the hydraulic motor chamber, discharged by the sewage valve, forming a suction process. When the water flows through the hydraulic

motor, it drives the suction pipe to rotate, and the hydraulic cylinder piston drives the suction pipe to make axial movement. The suction device assembly

completely cleans the inner surface of the entire filter screen through the combination of axial movement and rotating movement. The entire cleaning

process will last tens of seconds. The blowdown valve closes at the end of the cleaning, and the increased water pressure causes the hydraulic cylinder

piston to return to its initial position and the filter to begin preparing for the next flush cycle. During the cleaning process, the normal filtration work of

the filter is uninterrupted.