Air-blast-available external pressure type hollow fiber membrane module with one fixed end

Abstract

The invention relates to an air-blast-available external pressure type hollow fiber membrane module with one fixed end. The hollow fiber membrane module comprises a shell and hollow fiber membrane filaments, wherein an air inlet is formed in the center of one end of the shell, and at the same end, a water inlet is arranged at a certain angle with the air inlet; a concentrated water outlet is formed in the center of the other end of the shell, and at the same end, a produced water outlet is arranged at a certain angle with the concentrated water outlet; the hollow fiber membrane filaments are arranged in an inner cavity of the shell and extend from one end to the other end of the shell; one end, close to the water inlet and the air inlet, of each hollow fiber membrane filament is closed; the other end, close to the produced water outlet and the concentrated water outlet, of each hollow fiber membrane filament is fixed in the inner cavity of the shell; the inner cavity of the shell is divided into a produced water collection chamber and a water separation chamber; the produced water collection chamber is positioned at one end of the shell where the produced water outlet is formed; the produced water outlet is communicated with the produced water collection chamber; the concentrated water outlet is communicated with the water separation chamber through a central pipe arranged in the center of the inner cavity of the shell; the hollow fiber membrane filaments are positioned in the water separation chamber; the end, fixed in the inner cavity of the shell, of each filament is communicated with the produced water collection chamber.

Description

technical field [0001] The invention relates to a hollow fiber membrane module for water treatment, in particular to an external pressure hollow fiber membrane module with one end fixed and capable of flushing with air. Background technique [0002] At present, many industries use water treatment equipment using hollow fibers to purify water and treat various liquids. For example: advanced treatment and reuse of sewage in municipal, electric power, steel, petrochemical, textile, food and other fields and treatment of production process water, purification of municipal water supply, seawater desalination and pretreatment of reverse osmosis systems, and food and biopharmaceuticals Purification, concentration and separation in other fields. [0003] With the application of hollow fiber membranes, large-scale water treatment has a more reliable way. However, the internal pressure hollow fiber membrane modules and external pressure hollow fiber membrane modules commonly used at...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art and provide a new type of fixed-end air flushable external pressure hollow fiber membrane module. The technical problem to be solved is to make it pass through a single hollow fiber membrane One end of the wire is closed, and only the other end is fixed, which can facilitate the uniform distribution of water flow, make backwashing and air washing thorough, reduce the pollution speed of the membrane wire, and increase the service life of the membrane wire, which is very suitable for practical use.

Images