Flushable outside-in ultra-filtration core assembly and water purifier

Abstract

The present invention discloses a flushable outside-in ultra-filtration core assembly and a water purifier. The ultra-filtration core assembly comprises a filtration housing and a filtration core arranged inside the filtration housing, wherein the water inlet end of the filtration housing is provided with a raw water total inlet, the water outlet end of the filtration housing is provided with a purified water total outlet and a sewage discharge total outlet, the filtration core comprises a water purification chamber formed inside the filtration hosing and a hollow fiber ultra-filtration membrane wire arranged inside the water purification chamber, the wall of the water purification chamber is provided with a raw material inlet communicated with the raw water total inlet, a purified water outlet communicated with the purified water total outlet, and a sewage discharge outlet communicated with the sewage discharge total outlet, the opening on one end of the hollow fiber ultra-filtration membrane wire is closed, the opening on the other end of the hollow fiber ultra-filtration membrane wire is communicated with the purified water outlet, a flat plate member capable of moving along the hollow fiber ultra-filtration membrane wire is arranged inside the water purification chamber, and is provided with one or a plurality of through holes, and the hollow fiber ultra-filtration membrane wire penetrates through the through hole. The flushable outside-in ultra-filtration core assembly has characteristics of good flushing effect and effective total purified water increase.

Description

technical field [0001] The invention relates to a water treatment device, in particular to a flushable external pressure ultrafiltration element assembly and a water purifier using the flushable external pressure ultrafiltration element assembly. Background technique [0002] At present, the ultrafiltration filter element is divided into two types: internal pressure type and external pressure type. The internal pressure ultrafiltration filter element has a flushable structure, can be washed repeatedly, and has a long service life; however, the internal pressure ultrafiltration filter element is prone to bursting, and the safety of drinking water cannot be fully guaranteed. The external pressure ultrafiltration filter element has no danger of membrane filament breakage, but it does not have a flushable structure, or it needs to be equipped with a recoil valve and electric control to flush, while the ultrafiltration membrane only needs sufficient water pressure to work. It se...

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Problems solved by technology

[0004] At present, the flushable filter element can effectively increase the total water purification volume, prolong the life of the filter element, avoid frequent replacement of the filter element, and reduce the cost of use for consumers. However, the current ultrafiltration membrane filter element does not have a very satisfactory flushing effect.

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