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Single-pipe internal compression type mechanical circulation forced cross flow solid-liquid separation dynamic membrane system and device

A technology of solid-liquid separation and mechanical circulation, which is applied in semi-permeable membrane separation, membrane technology, permeation/dialysis water/sewage treatment, etc. It can solve the problems of hydraulic dead angle film thickness, uneven film thickness, and incomplete flushing, etc. , to achieve the effect of short film forming time, uniform force on the pipe wall, and reduced precoating time

Inactive Publication Date: 2012-11-28
NANTONG HISIN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a single-tube internal pressure mechanical circulation forced cross-flow solid-liquid separation dynamic membrane system to solve the problem of large-aperture dynamic membrane support components in the prior art due to structural defects. Uniformity, long film forming time and incomplete flushing, prone to technical problems of deposition
[0013] Another object of the present invention is to provide a single-tube internal pressure mechanical circulation forced cross-flow solid-liquid separation dynamic membrane device to solve the problem of hydraulic dead angle and film formation in the large-aperture dynamic membrane support assembly due to structural defects in the prior art. Uneven thickness, long film forming time and incomplete flushing, prone to technical problems of deposition

Method used

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  • Single-pipe internal compression type mechanical circulation forced cross flow solid-liquid separation dynamic membrane system and device
  • Single-pipe internal compression type mechanical circulation forced cross flow solid-liquid separation dynamic membrane system and device
  • Single-pipe internal compression type mechanical circulation forced cross flow solid-liquid separation dynamic membrane system and device

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Embodiment 1

[0042] see image 3 , which is a schematic structural diagram of a single-tube internal pressure mechanical circulation forced cross-flow solid-liquid separation dynamic membrane device according to an embodiment of the present invention.

[0043] The single-tube internal pressure mechanical circulation forced cross-flow solid-liquid separation dynamic membrane device 20 of this embodiment is used to treat feed water or sewage, and includes: a tubular internal pressure support body 21 and a casing 22 .

[0044] see Figure 4 , which is a structural schematic diagram of a tubular internal pressure dynamic membrane support body according to an embodiment of the present invention. The tubular internal pressure dynamic membrane support body 21 includes a porous thin-walled tube 211 and a hollow support frame 212. The porous thin-walled tube 211 is used to form a dynamic film on its inner wall and treat water supply or sewage. The hollow support frame 212 is sleeved on the The ou...

Embodiment 2

[0049] In the first embodiment above, the clean water outlet 223 is not only used as the running water outlet and the pre-coating circulation return of the dynamic film, but also as the backwash water inlet. The internal pressure support body 21 communicates with the tubular support body and the water purification chamber 23, and is used to discharge filtered water, and is used for the pre-coating circulation backflow of the dynamic membrane and backwashing of each tubular internal pressure support body 21. However, the present invention is not limited to backwashing the tubular support through the clean water outlet, please refer to Figure 5 , which is a structural schematic diagram of another single-tube internal pressure mechanical circulation forced cross-flow solid-liquid separation dynamic membrane device according to an embodiment of the present invention. For illustrative purposes, Figure 5 is used Figure 4 The main component symbols in .

[0050] The single-tube...

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Abstract

The invention relates to single-pipe internal compression type mechanical circulation forced cross flow solid-liquid separation dynamic membrane system and device. The dynamic membrane device comprises a tubular internal compression type supporting body of a large-aperture net and a shell arranged outside the tubular internal compression type supporting body, wherein the interior of the shell andthe exterior of the tubular internal compression type supporting body form a water purifying chamber; a raw water inlet and a plurality of purified water outlets are arranged on the shell; the raw water inlet is arranged at the lower end of the shell and communicated with the tubular internal compression type supporting body, and the purified water outlets are arranged on the shell and communicated with the water purifying chamber; a cross flow and backflow water outlet is also arranged on the shell; and the cross flow and backflow water outlet is arranged at the upper end of the shell and communicated with the tubular internal compression type supporting body. The single-pipe internal compression type mechanical circulation forced cross flow solid-liquid separation dynamic membrane device has the advantages of no hydraulic dead angle, short precoating time, convenient back wash, continuous working, improved dynamic membrane flux, stable water yield and long working period.

Description

technical field [0001] The invention relates to water supply / sewage treatment technology, in particular to a single-pipe internal pressure mechanical circulation forced cross-flow solid-liquid separation dynamic membrane system and device capable of reducing hydraulic dead angles. Background technique [0002] In the 21st century, water treatment membrane separation technology has become more and more widely used. Dynamic membrane separation technology, due to its relatively low investment cost, easy control of membrane fouling, and low energy consumption, has become a hot spot in current membrane research. [0003] Dynamic membrane (Dynamic membrane) can also be called secondary membrane (second membrane), which refers to a new membrane formed on the surface of microfiltration membrane, ultrafiltration membrane or large-pore support by precoating agent or activated sludge. The formation of a dynamic membrane can slow down the clogging (Block) and membrane fouling (Fouling)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/14C02F1/44
Inventor 曹达文罗文峰赵向军
Owner NANTONG HISIN INFORMATION TECH CO LTD
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