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Sand filter cooling circulating water filter works

November 19, 2022

Sand filter cooling circulating water filter works

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Sand filter cooling circulating water side filter is a kind of filter that directly intercepts impurities in water, removes suspended solids and particles, reduces turbidity, purifies water quality, reduces system fouling, algae, rust, etc., to purify water and water. The water enters the self-cleaning filter body from the water inlet. Due to the intelligent (PLC, PAC) design, the system can automatically identify the degree of impurity deposition and automatically discharge the sewage valve signal.
Sand filter cooling circulating water side filter working principle (1)
Water enters through the inlet and first filters out the impurities of the larger particles through the coarse filter 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 on the inner and outer sides of the fine filter. .
When the pressure difference of the filter reaches the preset value, the automatic cleaning process will start. During this time, the water supply is continuously flowing, the cleaning valve is opened, the water pressure in the cleaning chamber and the suction device is greatly reduced, and the sand filter cooling circulation water filter is passed. The pressure difference between the filter cartridge and the suction pipe, and a suction force is generated between the suction pipe and the cleaning chamber through the suction nozzle to form a suction process. At the same time, the electric motor drives the suction pipe to make a spiral motion in the axial direction. The combination of axial and rotary motion of the suction cleaner completely cleans the entire inner surface of the screen. The entire flushing process takes only a few tens of seconds. The drain valve closes at the end of the wash. The filter begins to prepare for the next rinse cycle.
Working principle of sand filter cooling circulating water filter (2)
The water to be treated enters the body through the water inlet, and impurities in the water are deposited on the stainless steel filter screen, thereby generating a pressure difference. The differential pressure switch monitors the pressure difference between the inlet and outlet. When the pressure difference reaches the set value, the electric controller sends the hydraulic control valve and drives the motor signal, triggering the following actions: the motor drives the brush to rotate, the filter element is cleaned, and the control valve is opened. For the sewage discharge, the whole cleaning process only lasts for several tens of seconds. When the cleaning is finished, the control valve is closed, the motor stops rotating, the system returns to its initial state, and the sand filter cooling circulation water filter starts to enter the next filtration process.
After the equipment is installed, the technician will debug and 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 gives the hydraulic control valve. Driving the motor signal, triggering the following actions: the motor drives the brush to rotate, and the filter element is cleaned. At the same time, the control valve is opened for sewage discharge. The entire cleaning process only lasts for several tens of seconds. When the cleaning is finished, the control valve is closed and the motor stops rotating. The system returns to its initial state and begins the next filtration process.
Sand filter cooling circulating water bypass filter working principle (3)
The water enters the filter from the water inlet, firstly filters out the impurities of the larger particles through the coarse filter element, and then reaches the fine filter mesh, and the impurities of the fine particles are filtered through the fine filter mesh, and the clean water is discharged from the water outlet. During the filtration process, the inner layer of the fine mesh gradually accumulates, and a pressure difference is formed between the inner and outer sides. Sand filter cooling circulating water side filter When this pressure difference reaches the preset value, the automatic cleaning process will start: the drain valve is opened, the hydraulic motor room and the hydraulic cylinder of the main assembly release the pressure and discharge the water; the hydraulic motor room and the suction pipe The pressure is greatly reduced. Due to the negative pressure, the dirt on the inner wall of the fine filter is sucked through the suction nozzle, and the hydraulic motor flows into the hydraulic motor chamber and is discharged by the drain valve to form a suction process. When the water flows through the hydraulic motor, the suction pipe is driven to rotate, and the suction cylinder drives the suction pipe to move axially. The suction device assembly completely cleans the inner surface of the filter through the combination of the axial movement and the rotary motion. The entire cleaning process will last for tens of seconds. The drain valve closes at the end of the wash and the increased water pressure causes the hydraulic cylinder piston to return to its original position and the filter begins to prepare for the next flush cycle. Sand filter cooling circulating water filter During the cleaning process, the normal filtration of the filter is uninterrupted.
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Ms. Eric

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