Flushable external pressure ultrafiltration element assembly and water purifier

Abstract

The invention discloses a flushable external pressure type ultrafiltration filter core assembly and a water purifier. The ultrafiltration filter core assembly comprises a filter shell and a filter core arranged in the filter shell, a raw water total inlet is arranged at the water inlet end of the filter shell, a purified water total outlet and a dirt total outlet are arranged at the water outlet end of the filter shell, the filter core comprises a water purifying chamber formed in the filter shell and hollow fiber ultrafiltration membrane filaments placed in the water purifying chamber, a wall of the water purifying chamber is provided with a raw water inlet, a purified water outlet and a dirt outlet , a tube port at one end of the hollow fiber ultrafiltration membrane filaments is sealed, a tube port at the other end of the hollow fiber ultrafiltration membrane filaments is communicated with the purified water outlet, a purified water cavity is arranged between the water purifying chamber and an end cover at the water outlet end of the filter shell, and the purified water cavity is communicated with the purified water outlet and the purified water total outlet; and a sewage cavity is also arranged between the water purifying chamber and the end cover at the water outlet end of the filter shell, the sewage cavity is positioned at one side of the purified water cavity opposite to the water purifying chamber, and the sewage cavity is communicated with the dirt outlet and the dirt total outlet. The flushable external pressure type ultrafiltration filter core assembly prolongs the life of the filter core, increases the total purified water amount and reduces the use cost of a consumer.

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 breaking the hollow fiber ultrafiltration membrane, but it does not have a flushable structure, or it needs to be equipped with a recoil valve and electric control to flush it, while the ultrafiltration membrane only needs sufficient wat...

AI Technical Summary

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, but the flushing effect is not very ideal

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