Multi-column self-cleaning filter

Working principle

Multi-element automatic backwashing filterelement filtration and backwashing in the filter is a filter element in the filter, the original (sewage) from the inside of the filter element to the outside filter, suspended impurities in the water are intercepted by the V-end gap hole in the filter element and floating around the gap plane, the filtered water from the filter element in the gap to the outflow. When the filter hole is blocked by a large number of suspended substances, the filter inlet and outlet water end pressure difference increases, and start backwash that is, the filter element in backwash, backwash due to the internal cavity of the filter element by pressure relief valve and access to the atmosphere (gauge pressure is 0), the filter element outside the filtered water into backwash water, under the action of large pressure difference rapidly washed from the filter element outside to the inside, because the gap is V-shaped, When the backwash water enters the inside from the outside of the filter element, the flow rate will be greatly increased, and then the formation of great scouring and cleaning effect on the gap. This V-shaped outward-facing high-quality filter element has excellent fluid characteristics, which can make the automatic backwashing filter every automatic cleaning is successful, so as to ensure the long-term stable work of the automatic backwashing filter. A lot of application practice has proved that if the filter element does not have the above characteristics, it will lead to the failure of filtration and backwashing.

Product characteristics

1. The backwash pressure relief sewage discharge port (DN3) is controlled by electric valve, and synchronously acts with the backwash motor, that is, the backwash motor starts, the backwash electric valve opens, and the sewage starts, the backwash motor stops at the end of the backwash, and the backwash ends; The electric valve is also closed at the same time, the end of the blowdown.

2. The sewage discharge outlet (DN4) is controlled by the manual valve. The manual blowdown valve should be opened regularly or opened during cleaning to discharge the dirt precipitated to the bottom of the main engine.

3. The pressure balancing valve and air release valve will open the exhaust gas at the beginning of the first work, and it will be closed during normal work.

4. During installation, special attention should be paid to the inlet and outlet direction and no dirt with large particle size should enter the main engine. See the instructions for details.

Product characteristics