Butterfly type water filtration backwashing filter element

Abstract

The invention discloses a butterfly type water filtration backwashing filter element which comprises a plurality of butterfly type filter materials, an inner framework, an end cover and a tail cover, the end cover and the tail cover are arranged on the two sides of the butterfly type filter materials respectively, the butterfly type filter materials form a circle through a pleating technology, the interiors of the pleated and looped butterfly type filter materials are connected with the surface of the inner framework in a welded mode, and through holes for water flowing are distributed in the surface of the inner framework. The outer side surface of the butterfly filter material is welded and sealed; and the butterfly type filter material structures are relatively independent, are mutually stacked and are welded with the inner framework to form the whole butterfly type filter element. The end cover is a water outlet or backwashing water inlet end cover, water can flow out through the end cover after being filtered, and the filtered water can also flow in through the end cover reversely for backwashing from inside to outside. The butterfly type filter element disclosed by the invention is greatly superior to various traditional backwashing filter elements in filter area, and a plurality of butterfly type filter materials operate independently and are stacked for mutual support, so that the backwashing strength of the filter materials is enhanced, and the filter capacity and the backwashing recovery capacity are improved.

Description

technical field [0001] The invention relates to the technical field of water filtration equipment, in particular to a butterfly-type water filtration backwash filter element. Background technique [0002] Water filtration is widely used in petrochemical, coal chemical, pharmaceutical, food, electronics and other industries. It mainly removes impurities and unnecessary components in materials through filtration, so that materials containing impurities can be clean again and be used in life and production again. . In the water filtration treatment system, reverse osmosis filtration is essential. The reverse osmosis membrane has higher requirements on the quality of the influent water, especially the particle impurity content and size. Therefore, in order to ensure the reverse osmosis filtration effect and the service life of the reverse osmosis membrane in practical applications, a security filter must be installed before reverse osmosis. The function of the security filter ...

AI Technical Summary

Problems solved by technology

[0005] like figure 1 As shown, the outer diameter of the traditional straight pleated filter element is generally 160mm, and the length is 1000mm. The traditional backwash filter element only changes the filter material into a backwash filter material. The pleat height is 25mm, the number of pleats is 100, and the length is 1000m, the filtration area is about 5 square meters, which leads to the above problems of flux and strength

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