◆ Working Principle of Fully Automatic Self-cleaning Filter (Part One)

The water enters the self-cleaning pipeline filter from the inlet, first passes through the coarse filter screen to remove larger particles of impurities, and then reaches the fine filter screen. During the filtration process, the fine filter screen gradually accumulates dirt and impurities in the water, forming a filtration impurity layer. As the impurity layer is piled up on the inner side of the fine filter screen, a pressure difference is formed on both the inner and outer sides of the fine filter screen.

When the pressure difference of the filter reaches the preset value, the automatic cleaning process will start. During this period, the supply of clean water is not interrupted. The cleaning valve opens, and the water pressure in the cleaning chamber and the dirt suction device drops significantly. The self-cleaning pipeline filter, through the pressure difference between the filter cartridge and the dirt suction pipe, generates a suction force between the dirt suction pipe and the cleaning chamber through the suction nozzle, forming a dirt suction process. Meanwhile, the electric motor drives the sewage suction pipe to move in a spiral along the axial direction. The combination of axial and rotational movements of the dirt suction device thoroughly cleans the entire inner surface of the filter screen. The entire rinsing process only takes tens of seconds. The drain valve closes at the end of the cleaning process. The filter begins to prepare for the next flushing cycle.

◆ Working Principle of Fully Automatic Self-Cleaning Filter (Part Two)

The water to be treated enters the body of the self-cleaning pipeline filter through the inlet. Impurities in the water deposit on the stainless steel filter screen, thereby creating a pressure difference. The pressure difference at the inlet and outlet is monitored through the differential pressure switch. When the pressure difference reaches the set value, the electronic controller sends signals to the hydraulic control valve and the drive motor, triggering the following actions: The motor drives the brush to rotate, cleaning the filter element. At the same time, the control valve opens for drainage. The entire cleaning process only lasts for tens of seconds. When the cleaning of the self-cleaning pipeline filter is completed, the control valve is closed, the motor stops rotating, and the system returns to its initial state, starting to enter the next filtration process.

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 through the water inlet, and the filter starts to work normally. When the preset cleaning time is reached, the electric controller sends signals to the hydraulic control valve and the drive motor, triggering the following actions: The motor drives the brush to rotate, and the self-cleaning pipeline filter cleans the filter element. At the same time, the control valve opens for drainage. The entire cleaning process only lasts for tens of seconds. When the cleaning is completed, the control valve is closed, the motor stops rotating, and the system returns to its initial state. The self-cleaning pipeline filter then enters the next filtration process.

◆ Working Principle of Fully Automatic Self-Cleaning Filter (Part Three)

Water enters the filter from the inlet. The self-cleaning pipeline filter first passes through the coarse filter element assembly to filter out larger particles of impurities, then reaches the fine filter screen. After the fine particles of impurities are filtered out by the fine filter screen, the clear water is discharged from the outlet. During the filtration process, impurities gradually accumulate in the inner layer of the fine filter screen, thus creating a pressure difference on both the inner and outer sides of the self-cleaning pipeline filter. When this pressure difference reaches the preset value, the automatic cleaning process will commence: the drain valve opens, and the hydraulic motor chamber and hydraulic cylinder of the main pipe assembly release pressure and discharge water. The pressure in the hydraulic motor chamber and the suction pipe drops significantly. Due to the negative pressure effect, the self-cleaning pipeline filter sucks the dirt on the inner wall of the fine filter screen through the suction nozzle, and the dirt flows into the hydraulic motor chamber from the hydraulic motor and is discharged through the drain valve, forming a suction process. When water flows through the hydraulic motor, it drives the suction pipe to rotate. The self-cleaning pipeline filter is driven by the piston of the hydraulic cylinder to make the suction pipe move axially. The suction assembly of the self-cleaning pipeline filter thoroughly cleans the entire inner surface of the filter screen through the combination of axial and rotational movements. The entire cleaning process will last for tens of seconds. The drain valve closes at the end of the cleaning process. The increased water pressure will cause the piston of the hydraulic cylinder to return to its initial position, and the filter begins to prepare for the next flushing cycle. During the cleaning process, the filter machine operates normally without interruption.