Filter element channel structure, composite filter element and water purifier

Abstract

The invention provides a channel structure of a composite filter element, which adopts an integrated shell, which not only simplifies the manufacturing process, but also avoids the increased risk of water leakage due to the existence of joints; the first filter cavity and the second filter cavity in the shell The filter chambers are completely separated by partition plates, and the two sides of the partition plates are provided with multi-stage sealing structures, which can prevent water channeling, water leakage, etc., and fundamentally solve the problem of filter chambers. Insufficient sealing between the two improves the filtration quality of the filter element; in addition, the water distribution part and the drainage tube are integrated into one body, which has higher stability and better sealing, and, because the front and rear filter chambers are inverted, the separation Difficulty in mold opening of the water parts improves the strength of the drainage tube, making the drainage tube not easily deformed and having a longer service life. In addition, the present invention also provides a water purifier using the above-mentioned composite filter element, which has the advantages of good sealing performance, no risk of water channeling or leakage, low assembly difficulty, and long service life.

Description

technical field [0001] The invention relates to the technical field of filter elements, in particular to a filter element flow channel structure, a composite filter element and a water purifier. Background technique [0002] The existing water purifier generally adopts multi-stage filtration, and the set composite filter element includes a pre-PP cotton filter, a pre-activated carbon filter, an RO filter (reverse osmosis filter) and a rear activated carbon filter. In order to reduce the total number of composite filter elements and reduce the volume of the water purifier, the water purifier generally integrates multiple composite filter elements into one composite filter element, that is, the composite filter element contains multiple stages of filtration, and the filter elements of each level are in different filter materials. inside the cavity, and communicated with the corresponding water inlet and outlet through the flow channel. [0003] However, most of the composite ...

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Problems solved by technology

[0004] 1. There are problems of insufficient sealing between the filter chambers, between the flow channels, and between the filter chamber and the flow channels, which are prone to water channeling and water leakage, which will affect the filtration quality;

[0005] 2. The drainage tube installed in the filter cavity is not securely installed and easily deformed;

[0006] 3. The shell of the composite filter element is combined in the form of segmented bonding, which not only has a cumbersome manufacturing process, but also greatly increases the risk of water leakage of the composite filter element due to the existence of seams

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