A vertical cross-flow filtration integrated device based on hollow fiber membrane

A cross-flow filtration, integrated device technology, applied in membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., to achieve good scouring effect, increase balance flux, and prolong service life.

Active Publication Date: 2022-01-11
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a hollow fiber membrane based hollow fiber membrane that can effectively slow down the fouling problem of the hollow fiber membrane, maintain the filtration efficiency of the membrane module, significantly improve the effective utilization rate of the internal components of the hollow fiber membrane, and prolong the repeated use cycle of the membrane module. vertical cross-flow filtration integrated device

Method used

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  • A vertical cross-flow filtration integrated device based on hollow fiber membrane
  • A vertical cross-flow filtration integrated device based on hollow fiber membrane
  • A vertical cross-flow filtration integrated device based on hollow fiber membrane

Examples

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Effect test

specific Embodiment 1

[0034] A hollow fiber membrane filter element assembly vertical cross-flow filtration integrated device, such as figure 1 and figure 2 As shown, there is a pressure vessel 1 with a cubic structure, a raw material liquid inlet 2 is arranged at the lower right end of the front of the pressure vessel 1, a concentrated liquid outlet 3 is arranged at the upper end of the left side surface of the pressure vessel 1, and a waste liquid discharge port is arranged at the lower end of the left side surface 4. At least one filter element integration assembly 5 is arranged in the pressure vessel 1, and the flow direction of the material and liquid in the pressure vessel 1 is vertically around the filter membrane surface of the filter element integration assembly 5, and the filter element integration assembly 5 is provided with a filtrate collection chamber 6 , the bottom plate of the pressure vessel 1 is provided with a filtrate collection pipe 7, and each filtrate collection chamber 6 is...

specific Embodiment 2

[0048] A curtain type membrane module vertical cross-flow filtration integrated device, such as Figure 6 , Figure 7 and Figure 8 As shown, the pressure vessel 1 comprising a cube structure is provided with a raw material liquid inlet 2 at the lower end of the left side of the pressure vessel 1, a concentrated liquid outlet 3 is arranged at the upper end of the right side of the pressure vessel 1, and a waste liquid is provided at the lower end of the right side of the pressure vessel 1. Outlet 4, at least one filter element assembly 5 is arranged in the pressure vessel 1, the flow direction of the material liquid in the pressure vessel 1 is vertically around the filter membrane surface of the filter element assembly 5, and the filter element assembly 5 is provided with a filtrate collection chamber Chamber 6, the bottom plate of the pressure vessel 1 is provided with a filtrate collection pipe 7, and each filtrate collection chamber 6 is respectively connected with the fil...

specific Embodiment 3

[0055] When it is necessary to increase the membrane filtration area of ​​the equipment, the above-mentioned cross-flow filtration membrane module can also be used according to Figure 9 Integrate as shown. The structure is the same as that of the above-mentioned specific embodiment 2, and the difference is that the pressure vessel 1 is divided into several cavities 26 by longitudinal partitions 25, and several curtain membrane modules are evenly arranged side by side in each cavity 26, and the curtain membrane modules The upper and lower ends of the upper and lower ends are respectively provided with a filtrate collection chamber 6, and the lower end of the filtrate collection chamber 6 is connected with an outlet pipe 24, and the outlet pipe 24 passes through the bottom plate of the pressure vessel 1 and communicates with the filtrate collection pipe 7. The longitudinal partition 25 is provided with a second filtrate return channel 27 for allowing the filtrate to flow throug...

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Abstract

The invention discloses a vertical cross-flow filtration integrated device based on a hollow fiber membrane, comprising a pressure vessel, characterized in that one end of the pressure vessel is provided with a raw material liquid inlet and the other end is provided with a concentrated liquid outlet, and the pressure vessel is provided with at least one Filter element integrated assembly, the flow direction of the material and liquid in the pressure vessel is vertical around the filter membrane surface of the filter element integrated assembly, the filter element integrated assembly is provided with a filtrate collection chamber, and the bottom plate of the pressure vessel is provided with a filtrate collection pipe, each The filtrate collection chambers are respectively connected with the filtrate collection pipes. One end of the filtrate collection pipe is provided with a filtrate outlet, and the pressure vessel is provided with a waste liquid outlet at the end of the concentrate outlet. The advantage is that it is effective Slow down the hollow fiber membrane fouling problem, maintain the filtration efficiency of the membrane module, and can significantly improve the effective utilization rate of the internal components of the hollow fiber membrane, and prolong the repeated use cycle of the membrane module.

Description

technical field [0001] The invention relates to a cross-flow filtration device, in particular to a vertical cross-flow filtration integrated device based on a hollow fiber membrane. Background technique [0002] In recent years, membrane separation and filtration technology has attracted more and more attention. Hollow fiber membrane modules have been widely used in water treatment and other fields due to their unique structural characteristics, such as high packing density, self-supporting system, and low cost. However, in the application process, the membrane fouling problem will affect the membrane filtration efficiency and shorten the service life of the membrane module, and it is also related to the economic benefits such as the cleaning cost, operation cost and replacement cost of the membrane. Therefore, in order to reduce membrane fouling, increase the effective filtration area of ​​membrane modules, prolong the service life of membrane modules, and improve the opti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D63/02B01D61/00
CPCB01D63/02B01D61/00
Inventor 张雪艳陆茵张颖卓鸣吕恺史西志
Owner NINGBO UNIV
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