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High-flux membrane element, membrane assembly and membrane system

A high-flux, membrane element technology, applied in the field of membrane separation, can solve the problems of the overall utilization rate of membrane elements is not high, can not effectively save energy consumption, improve fluid permeation flux, etc., to achieve convenient installation and maintenance, improve efficiency, The effect of increasing permeation flux

Pending Publication Date: 2020-02-21
HENAN LVDIAN ENERGY SAVING & ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the membrane module solution disclosed above has the problem that the overall utilization rate of the membrane element is not high, resulting in high energy consumption of the supporting equipment of the membrane system, which cannot effectively save energy consumption and improve the fluid permeation flux.

Method used

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  • High-flux membrane element, membrane assembly and membrane system
  • High-flux membrane element, membrane assembly and membrane system
  • High-flux membrane element, membrane assembly and membrane system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as figure 1 As shown, a tubular membrane element of this embodiment includes a tubular membrane element 2, and the tubular membrane element 2 is provided with a membrane element support layer, a transition layer and a membrane layer, which are prior art, and will not be described in detail in this embodiment. Two filter channel layers 3 arranged in concentric circles are arranged on the tubular membrane element 2 , each filter channel layer 3 includes a plurality of circumferentially distributed filter channels, and a lumen channel 1 is provided at the center of the tubular membrane element 2 .

[0057] The filter channel 3 of the tubular membrane element is asymmetrically distributed between the inner cavity channel and the outer membrane layer. The pressure difference on both sides of the filter channel 3 is the driving force, and the membrane and the transition layer are the filter media to increase the effective permeation area and increase The permeation flux ...

Embodiment 2

[0067] Such as Figure 3 to Figure 8 As shown, a high-flux membrane module in this embodiment includes a membrane housing 11, and the axial ends of the membrane housing 11 are provided with supporting faceplates 12, membrane element pressure plates 13, and permeate flow guides 14 in sequence. And the end cover 15, the membrane element group is arranged in the membrane housing 11, the filtrate collection cavity is formed between the membrane element group and the membrane housing 11, and the filtrate outlet 16 communicated with the filtrate collection cavity is provided on the membrane housing 11, 17; One end cover is provided with a raw liquid inlet 18, and the other end cover is provided with a thick liquid outlet 19.

[0068] The membrane shell 11 is a cylindrical metal or non-metallic product, and its specification and model should match the supporting faceplate 12. The filtered liquid outlets 16 and 17 are arranged on the side wall so that the purified liquid can flow from...

Embodiment 3

[0086] This embodiment discloses a high-flux membrane system, including the high-flux membrane module described in Embodiment 2. There are multiple high-flux membrane modules arranged, and the dope outlet of the upper-level high-flux membrane module is connected to the lower high-flux membrane module. The raw liquid inlet of the membrane module is connected to realize multi-stage filtration.

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Abstract

The invention discloses a high-flux membrane element, a membrane assembly and a membrane system; the high-flux membrane element comprises a tubular membrane element, at least two filter channel layersarranged in a concentric circle manner are arranged on the tubular membrane element, each filter channel layer comprises a plurality of circumferentially distributed filter channels, and an inner cavity channel is arranged in the center of the tubular membrane element. By adding the inner cavity channel of the membrane element, the permeation area of the membrane element is increased, the ratio of the circulating flow to the seepage quantity of a permeable membrane is reduced, the permeation performance of the ceramic membrane element is remarkably improved, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of membrane separation, in particular to a high-flux membrane element, a membrane module and a membrane system. Background technique [0002] In recent years, membrane separation has been widely used in environmental engineering, pharmaceutical engineering, bioengineering, food and beverage industry, chemical industry, metallurgical industry and other fields. [0003] The membrane elements that have been widely used at present are mainly multi-channel tubular membranes. The multi-channel tubular membrane has multiple channels to form a honeycomb structure. This multi-channel form not only ensures the mechanical strength of the membrane tube, but also increases the contact with the feed liquid. area, thereby effectively increasing the filtration efficiency; while the multi-channel tubular membrane brings many advantages, it also has its own limitations. , the filtration efficiency is low, and the membrane f...

Claims

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Application Information

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IPC IPC(8): B01D61/00B01D63/06B01D65/02
CPCB01D61/00B01D63/06B01D65/02
Inventor 田文学杨纪民田润
Owner HENAN LVDIAN ENERGY SAVING & ENVIRONMENTAL PROTECTION TECH