A terminal part, a hollow fiber membrane module and a membrane filtration unit

Abstract

The invention provides an end component of a hollow fiber membrane module. The end component is a shell provided with a liquid collection cavity; the end component comprises a through channel which penetrates through the shell completely and the liquid collection cavity. The invention further provides the hollow fiber membrane module. The hollow fiber membrane module comprises the end component, a hollow fiber membrane strand array, a support device and a main liquid collection pipeline; the end component comprises an upper end and a lower end which are located on the upper portion and the lower portion of the hollow fiber membrane module respectively; the upper end and the lower end of the hollow fiber membrane module each have a through groove structure. The end component and the hollow fiber membrane module have the function of outputting water both at the upper end and at the lower end simultaneously, the purpose of reducing pollution of the membrane module is achieved, and meanwhile, the filtering efficiency is improved through water output at the both ends; the hollow fiber membrane strand array is in a thin curtain shape as a whole, and the compact type integration design of the membrane module is achieved; the hollow fiber membrane strand array and the upper end and the lower end are of a detachable assembly structure, and the problem that the outer surface of a hollow fiber membrane at the root of the membrane module cannot be repaired is solved.

Description

technical field [0001] The invention relates to the field of water treatment, and more specifically relates to a terminal part, a hollow fiber membrane module and a membrane filtration unit. Background technique [0002] Membrane separation technology has been widely used in the fields of water purification or liquid filtration and separation. According to the structure of the membrane filtration system, it can be divided into shell pressurized membrane system and submerged membrane system. [0003] Among them, the submerged membrane system can treat the liquid to be filtered that contains high suspended solids, sludge and other pollutants. The membrane module in the submerged membrane system generally also has a liquid collection chamber for filtrate collection and an aeration structure for disturbing the membrane filaments to remove pollutants on the membrane filament surface. In the existing submerged membrane filtration system, the middle part of the membrane module usu...

AI Technical Summary

Problems solved by technology

[0010] An object of the present invention is to propose a terminal part of a hollow fiber membrane module, which is used to overcome the design of the liquid collecting end of the membrane module in the prior art in the form of a blind end, causing the membrane filaments of the membrane module to be in the liquid collecting end. The roots on the side cannot discharge sewage and cause the problem of fouling; the hollow fiber membrane module using the end part of the present invention can realize the dual functions of liquid collection and sewage discharge at the same end (upper end or lower end)

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