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Vertical cross-flow filtration integration device based on hollow fiber membrane

A cross-flow filtration and integrated device technology, which is applied in membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., to achieve the effect of reducing membrane fouling, slowing down the accumulation of pollutants, and prolonging the service life

Active Publication Date: 2019-10-18
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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  • Vertical cross-flow filtration integration device based on hollow fiber membrane
  • Vertical cross-flow filtration integration device based on hollow fiber membrane
  • Vertical cross-flow filtration integration device based on hollow fiber membrane

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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 integration device based on a hollow fiber membrane. The vertical cross-flow filtration integration device includes a pressure vessel, and is characterized in that a feed solution inlet is formed in one end of the pressure vessel, a concentrated solution outlet is formed in the other end of the pressure vessel, the pressure vessel is internally provided with at least one filter element integration assembly, the flow direction of feed liquid in the pressure vessel vertically bypasses the filter membrane surfaces of the filter element integration assemblies, the filter element integration assemblies are internally provided with filtered solution collection chambers, a filtered solution collecting pipeline is arranged on the lower partof a bottom plate of the pressure vessel, each filtered solution collection chamber communicates with the filtered solution collection pipeline, a filtered solution outlet is formed in one end of thefiltered solution collection pipeline, and a waste liquid discharge outlet is formed in the position, at one end of the concentrate solution outlet, of the pressure vessel. The vertical cross-flow filtration integration device based on the hollow fiber membrane has the advantages that the problem of pollution of the hollow fiber membrane is effectively reduced, the filtration efficiency of a membrane assembly is maintained, the effective utilization rate of an internal assembly of the hollow fiber membrane can be significantly increased, and the reuse cycle of the membrane assembly is prolonged.

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 Applications(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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