Nested composite filter core

Abstract

The invention discloses a nested composite filter core. The nested composite filter core comprises a first-stage filter core and a second-stage filter core which are mutually and coaxially nested and have hollow cylinder shapes, wherein the first-stage filter core passes through and is arranged in the bore of the second-stage filter core, the first-stage and second-stage filter cores have a same height, and the external diameter of the first-stage filter core matches with the internal diameter of the second-stage filter core; and both ends of the first-stage and second-stage filter cores are respectively provided with a cover seal, and the cover seals of the first-stage and second-stage filter cores are tightly combined together through gaskets to form the composite filter core. Two different filter materials can be simultaneously provided when the composite filter core is used, so the two filter materials with different functions are combined together to realize a case that filter requirements of the two filter materials can be satisfied through only using a filter; and the two stage filter cores can be individually replaced, so the whole replacement of the filter cores is avoided, thereby the service life of the whole composite filter core is prolonged, and the use cost is reduced.

Description

technical field [0001] The invention relates to a filter material, in particular to a stacked composite filter core. Background technique [0002] As a filter material in the process of liquid treatment, the filter element has been widely used, but because the filtering area of ​​the filter element and the volume of the filter element are a pair of contradictions, they cannot be satisfied at the same time, so a stacked filter element structure is produced to increase the unit filtration area of ​​the filter element , reducing the resistance to fluid flow. However, since the filter layer of the stacked filter element is still one layer, the filtration accuracy is single, which cannot meet the requirements of specific filtration; at the same time, in the process of large flow and high-precision filtration, the life of the filter element is short, resulting in high cost of use. Moreover, when a single filter material is used, different filter elements with different functions ...

AI Technical Summary

Problems solved by technology

[0002] As a filter material in the process of liquid treatment, the filter element has been widely used, but because the filtering area of ​​the filter element and the volume of the filter element are a pair of contradictions, they cannot be satisfied at the same time, so a stacked filter element structure is produced to increase the unit filtration area of ​​the filter element , reducing the resistance to fluid flow

However, since the filter layer of the stacked filter element is still one layer, the filtration accuracy is single, which cannot meet the requirements of specific filtration; at the same time, in the process of large flow and high-precision filtration, the life of the filter element is short, resulting in high cost of use. Moreover, when using a single filter material, different filter elements need to be installed with different filter elements and installed in different filters, thereby increasing the use area, which is not conducive to installation

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