Two-way powerful spray pre-filter

Abstract

The invention provides a bidirectional strong spray washing prefilter. A source water inlet (11) and a filtered water outlet (12) are arranged at two sides of an upper shell body (2) respectively. A water outlet (13) is arranged at the lower part of a lower shell body (3). A water path reversing valve (16) and a flushing control handle (15) are arranged inside the upper shell body (2). A filter screen (14) and a strong force water spraying device (19) are arranged inside a main shell body (1). A draining ball valve (18) and a flushing draining handle (17) are arranged inside the lower shell body (3). The flushing control handle (15) controls switching of the water path reversing valve (16) in a filtration position, a spraying position and a backwashing position. The flushing draining handle (17) controls opening and closing of the draining ball valve (18). Through the flushing control handle (15), the water path reversing valve (16) is adjusted to the spraying position and the backwashing position. Through the flushing draining handle (17), the draining ball valve (18) is opened. Rapid switching of forward and reverse water flows is achieved and bidirectional strong spray washing of the filter screen (14) is carried out.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a two-way powerful spray washing pre-filter. Background technique [0002] Due to secondary pollution such as rust and sediment in the water supply of the city, the water quality of household water deteriorates and the control of water equipment fails, and the life of other household appliances involving water is shortened, and even a huge safety hazard is generated. Therefore, From the perspective of the general environment, every household needs to install a pre-filter to improve water quality and protect household water equipment. [0003] At present, the pre-filters in the market mainly include forward flushing type, backwashing type, siphon flushing type and other types. However, different types of prefilters present different problems: [0004] Most of the various types of pre-filters do not have flushing prompts, or the flushing prompts are inaccurate, and the wa...

AI Technical Summary

Problems solved by technology

The main disadvantage of PP cotton is that it needs to be replaced frequently and the filter element cannot be backwashed. After the accumulation of impurities, it cannot be discharged in time, causing secondary pollution and easy to breed bacteria.

In order to be able to visually check the use status of the filter element, most PP cotton filter bottles are made of transparent material, but it is easy to grow moss

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