Hollow fiber membrane module and water treatment apparatus with it

Abstract

The invention provides a hollow fiber membrane module and a water treatment apparatus with it. The hollow fiber membrane module comprises a water distributing assembly and hollow fiber membranes, wherein the water distributing assembly has a plurality of water distributing partition sheets, the plurality of water distributing partition sheets are uniformly distributed on an outer wall of a central tube of the water distributing assembly, and the plurality of water distributing partition sheets extend in a radial outward manner from the outer wall of the central tube and simultaneously axially extends along the central tube to one end of the central tube from the other end of the central tube in order to divide the periphery of the central tube into a plurality of axial membrane filament accommodation zones; the hollow fiber membranes are uniformly distributed in the plurality of axial membrane filament accommodation zones; and the central tube is provided with a plurality of water flow holes. The module can ensure the uniform distribution of the hollow fiber membranes, so the purified water quality is guaranteed, and it is convenient to manufacture and assemble.

Description

technical field [0001] The invention relates to water treatment equipment, in particular to a hollow fiber membrane module and a water treatment device with the hollow fiber membrane module. Background technique [0002] Hollow fiber membrane filtration technology uses hollow fiber as a filter material to clarify, sterilize, separate, concentrate, etc. water or other liquids, and is increasingly widely used in the filtration or purification of various water or other liquids. [0003] Existing water treatment devices that use hollow fibers for filtration usually include a shell, end covers at both ends of the shell, and hollow fiber membrane modules inside the shell. Tens of thousands of hollow fiber membranes with an outer diameter of tens to hundreds of microns are bundled and packed into a pressure-bearing housing to form a component. Usually, the center of the component can also be provided with a hollow tube. During water treatment, the water to be treated flows into th...

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Problems solved by technology

[0004] However, the hollow fiber membranes of the above-mentioned hollow fiber membrane modules are usually all bundled together and packed into the casing, so that the distribution of the hollow fiber membranes will be uneven during use, resulting in uneven water filtration and affecting the quality of water purification.

Even if there is a design to separate the hollow fiber membranes in the prior art to improve the above-mentioned deficiency, only partitions are set at both ends or in the middle of the hollow fiber membrane module to split the hollow fiber membranes, which will still lead to partial distribution of the hollow fiber membranes. Inhomogeneity, especially in the case of long hollow fiber membranes, and consequent inconvenience of installation

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