Binding band type folding filter element

Abstract

The invention discloses a binding band type folding filer element which comprises a cylindrical folding filter element body, an upper sealing cover and a lower sealing cover, wherein the upper sealing cover is arranged at the upper end of the folding filter element body and bonded with the upper end part of the folding filter element body; the lower sealing cover is arranged at the lower end of the folding filter element body and bonded with the lower end part of the folding filter element body; a plurality of circles of porous binding bands are arranged on the cylindrical outer surface of the folding filter element; and the folding filter element body has a diffuse multi-pleat design which ensure that the filter element has a larger area filtering surface under the condition of the same volume. The binding bands are bundled on the cylindrical surface of the folding filter element body, thereby fixing the pleat layers of the folding filter element body, ensuring that the folding filter element body is not easy to deform and enhancing the structural strength of the folding filter element body, and moreover, the binding bands can also be used as a pre-filtering layer of the folding filter element body, thereby lightening the filtering burden of the folding filter element body, improving the treatment capacity of the folding filter element body, prolonging the service life of the filter element and reducing the investment and manpower cost.

Description

technical field [0001] The invention relates to a filter device, in particular to a band-type pleated filter element. Background technique [0002] The filter element is widely used as a filter material in the process of liquid treatment, but because the filter area and the filter element volume are a pair of contradictions, they cannot be satisfied at the same time, so the structure of the folded filter element is produced, such as the Chinese patent number CN200920114575.0 The utility model patent named as a folded filter element includes an inner center tube, an outer shell, an upper sealing end plate, a lower sealing end plate and a filter membrane sandwiched in the middle. The upper and lower sealing end plates are welded with the outer casing and the central pipe, and the center of the lower sealing end plate is opened to communicate with the central pipe. The filter membrane is formed by high and low valley folding, that is, it is folded cyclically in the form of a v...

AI Technical Summary

Problems solved by technology

[0003] The invention mainly solves the technical problems that the ordinary folded filter element is easily deformed and the filter layer is easily blocked, and at the same time solves the disadvantages of complex processing and assembly, high cost, heavy filter element and large volume of the folded filter element provided with a central tube and a shell; it provides a There are straps on the peripheral surface of the pleated filter body, the filter element has high strength and is not easy to deform, simple processing, and low cost strap-type pleated filter element

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