Novel flat-sheet membrane module

Abstract

The invention relates to a novel flat-sheet membrane module, which comprises filtering membranes and a support diaphragm plate for fixing the filtering membranes, wherein the support diaphragm plate is clasped with two front and back mesh plates through a frame; the front lateral surface and the back lateral surface of the support diaphragm plate are uniformly provided with densely distributed filter meshes; the two lateral surfaces are fixed with the filtering membranes in a mode of sticking or welding; membrane holes on the filtering membranes are communicated with a hollow inner cavity through the meshes on the support diaphragm plate; and a stream guiding area is arranged in the hollow inner cavity, and one end of the support diaphragm plate is provided with an effluent nozzle communicated with the stream guiding area. When the flat-sheet membrane module is applied, under the action of the negative pressure of a self-priming pump or the positive pressure of a filter hybrid hydraulic head, liquid infiltrates the surfaces of the filtering membranes, runs through the meshes of the support diaphragm plate to enter the hollow inner cavity, and then flows into an effluent trench through the stream guiding area and outflows from the outflow nozzle to realize the integral filtering process. The membrane module has the characteristics of easy machining, high utilization factor of the membrane, uniform distribution of pressure in the cavity and the like, is easy to be assembled into membrane assemblies in various forms, and is applicable in the fields of industrial filter and water treatment.

Description

Technical field [0001] The invention relates to a filtration unit of a membrane separation device, in particular to a membrane component composed of a flat membrane and a supporting membrane plate, and belongs to the technical field of membrane separation. Background technique [0002] Membrane separation technology has multiple functions such as separation, concentration, purification and refining. It has the characteristics of high efficiency, energy saving, environmental protection, molecular level filtration and simple structure, simple operation and easy control. It has been widely used in industrial fields such as water treatment and food, medicine, biology, chemical industry, metallurgy, biology, energy, petroleum, electronics, bionics, etc., and has become one of the most effective separation methods in industrial production. Choosing a suitable membrane separation process can replace traditional separation and filtration such as drum vacuum filtration, plate and frame fi...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a new type of flat membrane component to solve the technical shortcomings of traditional membrane components such as large filtration resistance, uneven pressure distribution, and single online cleaning means.

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