Self-cleaning backwashing water filter

Abstract

The invention relates to the technical field of water treatment, in particular to a self-cleaning backwashing water filter which comprises a body, an upper bottom core seat, a lower bottom core seat and two filter elements, the upper bottom core seat and the lower bottom core seat are arranged in the body, the two ends of each filter element are connected to the upper bottom core seat and the lower bottom core seat respectively, the lower bottom core seat is provided with a plurality of liquid inlet holes, and the liquid inlet holes are communicated with the liquid inlet holes. Backwashing pipes with the same number as the filter elements are further arranged in the body, the two backwashing pipes are communicated with each other, a blow-off pipe for discharging sewage out of the body is arranged at the communication position, a baffle is arranged on the outer wall of the lower end of each filter element, a cleaning assembly is arranged on each filter element, and a linkage assembly for driving the cleaning assemblies to move back and forth in the vertical direction is arranged in the body. The problems that backwashing is not thorough, and impurities still remain in the filter element are solved.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a self-cleaning backwash water filter. Background technique [0002] The filter is an indispensable device on the conveying medium pipeline, and is usually installed at the inlet end of pressure reducing valve, pressure relief valve, constant water level valve, square filter and other equipment. The filter is composed of a cylinder, a stainless steel filter, a sewage discharge part, a transmission device and an electrical control part. After the water to be treated passes through the filter cartridge of the filter screen, its impurities are blocked. When cleaning is required, just take out the detachable filter cartridge and reinstall it after treatment. Therefore, the use and maintenance are extremely convenient. [0003] However, the filter device has been used for a long time, and the solid phase impurities in the liquid are trapped on the surface of the filter elemen...

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