CN217367897U - Back washing device of multi-core ceramic membrane component - Google Patents
Back washing device of multi-core ceramic membrane component Download PDFInfo
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- CN217367897U CN217367897U CN202220387817.9U CN202220387817U CN217367897U CN 217367897 U CN217367897 U CN 217367897U CN 202220387817 U CN202220387817 U CN 202220387817U CN 217367897 U CN217367897 U CN 217367897U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model discloses a back washing unit of multicore ceramic membrane subassembly, including head tank, ceramic membrane subassembly, back washing tank, clear solution jar and controller, the bottom of pay-off tube coupling ceramic membrane subassembly is passed through to the bottom of head tank, and the top of ejection of compact tube coupling head tank is passed through at the top of ceramic membrane subassembly, and the lower part of ceramic membrane subassembly passes through the pipeline and communicates back washing pipeline and clear solution pipeline respectively, and the bottom of back washing tank is connected to the other end of back washing pipeline, and pipeline intercommunication air inlet pipeline and exhaust pipe are passed through at the top of back washing tank, and clear solution jar is connected to the other end of clear solution pipeline. The utility model discloses a washing process control is simple, the operation is stable, wash the equilibrium, can be used to continuous production and clearance production process.
Description
Technical Field
The invention belongs to the technical field of ceramic membrane cleaning, and particularly relates to a backwashing device of a multi-core ceramic membrane component.
Background
The inorganic ceramic membrane has the advantages of high separation efficiency, solvent resistance, high temperature resistance, acid and alkali resistance, pollution resistance, simple separation process, low operation and maintenance difficulty and the like, and is widely applied to various fields of food, beverage, fine chemical industry, biomedicine, fermentation, water treatment, new energy and the like.
The membrane pollution is an inevitable phenomenon in the separation process of the inorganic ceramic membrane, and the problem of membrane pollution needs to be solved through physical cleaning and chemical regeneration cleaning. The chemical regeneration cleaning mainly aims at the problem that the physical cleaning cannot recover the membrane flux, but the shutdown cleaning is needed in the case of serious membrane pollution. The physical cleaning is an on-line cleaning method, long-time shutdown is not needed, the operation is simple and convenient, the most common physical cleaning method is to carry out back washing on the surface of the membrane by adopting permeate liquid of a ceramic membrane, and the method is generally realized by adopting a back washing pump and a gas cap liquid. Patents CN201899984U and CN205850606U both disclose a gas-liquid backflush device for ceramic membrane, which mainly includes a ceramic membrane device, a backflush tank, a backflush pipe, an evacuation pipe, an air inlet pipe, a pneumatic valve, a one-way valve, a manual valve, etc., and the ceramic membrane is backflushed in a gas-over-liquid mode. Patent CN108751250A discloses a ceramic membrane washing device and a ceramic membrane washing method, wherein the back washing device comprises a back washing pump, the inlet of the back washing pump is communicated with a water production tank, the outlet of the back washing pump is communicated with a selective ceramic membrane water outlet, and the outlet of the back washing pump is communicated with the ceramic membrane water outlet for back washing every 35-45 minutes of operation of the ceramic membrane.
The backwashing method of the ceramic membrane has good cleaning effect on the small ceramic membrane component, but for a large multi-core ceramic membrane component provided with dozens to hundreds of ceramic membrane components, the backwashing liquid preferentially permeates the membrane component which is closer to the inlet position of the backwashing pipe during backwashing, the backwashing effect on the membrane component which is farther from the inlet position of the backwashing pipe is poorer, the higher the backwashing frequency is, the more unbalanced the backwashing of the ceramic membrane components in the large multi-core ceramic membrane component is, the more obvious the difference of the cleaning effect is, and the unstable operation of the whole ceramic membrane device is caused. In view of this, it is necessary to develop a backwashing device of a multi-core ceramic membrane module.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model aims to provide a back washing device of a multi-core ceramic membrane component, which is simple to control, stable in operation, balanced in washing and applicable to continuous production and gap production processes.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a back washing unit of multicore ceramic membrane subassembly, includes head tank, ceramic membrane subassembly, backwash tank, clear solution jar and controller, the bottom of head tank passes through the bottom of pay-off pipeline connection ceramic membrane subassembly, the top of ceramic membrane subassembly passes through the top of ejection of compact pipeline connection head tank, the lower part of ceramic membrane subassembly passes through the pipeline and communicates backwash pipeline and clear solution pipeline respectively, the other end of backwash pipeline connects the bottom of backwash tank, the top of backwash tank passes through pipeline intercommunication air inlet pipeline and exhaust pipe, the other end of clear solution pipeline connects the clear solution jar.
Preferably, the feeding pipeline is provided with a raw material pump and a first automatic control valve.
Still preferably, the discharge pipeline is provided with a pressure control valve and a second automatic control valve.
More preferably, a bypass is provided on the discharge pipe, and a third automatic control valve is provided on the bypass.
Further preferably, a fourth automatic control valve and a fifth automatic control valve are respectively arranged on the backwashing pipeline and the clear liquid pipeline.
Specifically, the intake pipeline is provided with an intake control switch valve, a pressure gauge and a pressure reducing valve.
Preferably, an exhaust control switch valve is disposed on the exhaust pipeline.
Still preferably, a liquid level sensor is disposed at an upper portion of the backwash tank.
The utility model discloses an useful part lies in:
(1) the utility model discloses a keep pressurizeing to the permeate liquid side, after the pressure balance of stoste side and permeate liquid side, stoste side instant release pressure, the permeate liquid that the pressure difference in twinkling of an eye can make in the backwash jar gets into the ceramic membrane subassembly fast, carries out reverse pulse cleaning to the ceramic membrane, and the pulse cleaning range is big, is applicable to large-scale multicore ceramic membrane subassembly, can be even resume in the membrane subassembly the flux of ceramic element of distribution in different positions, avoid ceramic membrane element apart from backwash pipe import position difference and produce the shortcoming of backwash flux difference;
(2) the permeate liquid in the backwashing tank is pressurized in a pneumatic jacking liquid pressurizing mode, meanwhile, the pressure of the stock liquid side is adjusted by quickly opening and closing a third automatic control valve on the stock liquid side, so that the stock liquid side and the permeate liquid side of the ceramic membrane generate a pressure difference, and reverse pulse flushing is realized;
(3) the backwashing process is simple to control, the operation is stable, the using amount of the permeate liquid for backwashing is small, the advantages of the ceramic membrane device of the permeate liquid with high added value are more obvious, and the method can be used for continuous production and interval production.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The meaning of the reference symbols in the figures: 1. the device comprises a raw material tank, 2, a third automatic control valve, 3, a pressure control valve, 4, a ceramic membrane assembly, 6, a backwashing tank, 7, a fourth automatic control valve, 8, a fifth automatic control valve, 9, a raw material pump, 10, an exhaust control switch valve, 11, an air inlet control switch valve, 12, a clear liquid tank, 13, a pressure reducing valve, 14, a second automatic control valve, 15, a first automatic control valve, 16 and a bypass.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the utility model discloses a back washing unit of multicore ceramic membrane subassembly, including head tank 1, ceramic membrane subassembly 4, back washing jar 6, clear solution jar 12 and controller, install 37 ceramic membrane components in the ceramic membrane subassembly 4.
The bottom of the raw material tank 1 is connected with the bottom of the ceramic membrane component 4 through a feeding pipeline, and a raw material pump 9 and a first automatic control valve 15 are arranged on the feeding pipeline. The top of the ceramic membrane component 4 is connected with the top of the raw material tank 1 through a discharging pipeline, a pressure control valve 3 and a second automatic control valve 14 are arranged on the discharging pipeline, a bypass 16 is arranged on the discharging pipeline, and a third automatic control valve 2 is arranged on the bypass 16.
The lower part of the ceramic membrane component 4 is respectively communicated with a back washing pipeline and a clear liquid pipeline through pipelines, and the back washing pipeline and the clear liquid pipeline are respectively provided with a fourth automatic control valve 7 and a fifth automatic control valve 8. The other end of the backwashing pipeline is connected with the bottom of the backwashing tank 6, a liquid level sensor is arranged at the upper part in the backwashing tank 6, the top of the backwashing tank 6 is communicated with an air inlet pipeline and an air outlet pipeline through pipelines, an air inlet control switch valve 11, a pressure gauge and a pressure reducing valve 13 are arranged on the air inlet pipeline, and an air outlet control switch valve 10 is arranged on the air outlet pipeline. The other end of the clear liquid pipeline is connected with a clear liquid tank 12.
The controller is connected with the liquid level sensor, the air inlet control switch valve 11, the pressure gauge, the pressure reducing valve 13, the exhaust control switch valve 10, the first automatic control valve 15, the second automatic control valve 14, the third automatic control valve 2, the fourth automatic control valve 7 and the fifth automatic control valve 8 through leads so as to control the work of each valve and device.
The utility model discloses a theory of operation: the utility model discloses a permeation liquid of the pressurization mode of gas cap liquid in to back flush jar 6 pressurizes, treat 4 stoste sides of ceramic membrane subassembly and the pressure balance back of permeation liquid side, release the pressure of stoste side through the third automatic control valve 2 that opens the stoste side fast for the stoste side of ceramic membrane and the permeation liquid side produce pressure differential in the twinkling of an eye, thereby make the permeation liquid in the back flush jar 6 get into the ceramic membrane subassembly fast, carry out reverse pulse to the ceramic membrane and wash.
In order to better illustrate the present invention, the following description specifically describes the working process thereof:
when the ceramic membrane assembly 4 performs filtration work, the fourth automatic control valve 7 and the exhaust control switch valve 10 are opened, the fifth automatic control valve 8 is closed, permeate liquid is injected into the backwashing tank 6, after the liquid level reaches the set position of the backwashing tank liquid level sensor, the fourth automatic control valve 7 is closed, the fifth automatic control valve 8 is opened, normal filtration operation is performed, and the permeate liquid enters the clear liquid tank 12; when the device operates to a backwashing step sequence, the raw material pump 9 is stopped, the first automatic control valve 15, the second automatic control valve 14 and the third automatic control valve 2 are closed, the air inlet control switch valve 11 is opened, compressed air is fed into the backwashing tank 6, the controller sends a signal to the third automatic control valve 2 after the backwashing tank 6 reaches a set backwashing pressure, and the third automatic control valve 2 is rapidly opened, so that rapid pulse backwashing can be carried out on the ceramic membrane component 4.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (8)
1. The back washing device of the multi-core ceramic membrane component comprises a raw material tank (1), a ceramic membrane component (4), a back washing tank (6), a clear liquid tank (12) and a controller, and is characterized in that the bottom of the raw material tank (1) is connected with the bottom of the ceramic membrane component (4) through a feeding pipeline, the top of the ceramic membrane component (4) is connected with the top of the raw material tank (1) through a discharging pipeline, the lower part of the ceramic membrane component (4) is respectively communicated with the back washing pipeline and the clear liquid pipeline through pipelines, the other end of the back washing pipeline is connected with the bottom of the back washing tank (6), the top of the back washing tank (6) is communicated with an air inlet pipeline and an air exhaust pipeline through pipelines, and the other end of the clear liquid pipeline is connected with the clear liquid tank (12).
2. The backwashing device of the multi-core ceramic membrane module as claimed in claim 1, wherein a raw material pump (9) and a first automatic control valve (15) are disposed on the feeding pipeline.
3. The backwashing device of the multicore ceramic membrane module of claim 1, wherein the discharge pipe is provided with a pressure control valve (3) and a second automatic control valve (14).
4. The backwashing device of the multicore ceramic membrane module of claim 1, wherein a bypass (16) is provided on the discharge pipe, and a third automatic control valve (2) is provided on the bypass (16).
5. The backwashing device of the multi-core ceramic membrane module of claim 1, wherein the backwashing pipeline and the clear liquid pipeline are respectively provided with a fourth automatic control valve (7) and a fifth automatic control valve (8).
6. The backwashing device of the multi-core ceramic membrane module of claim 1, wherein an air inlet control switch valve (11), a pressure gauge and a pressure reducing valve (13) are arranged on the air inlet pipeline.
7. The backwashing device of the multi-core ceramic membrane module of claim 1, wherein an exhaust control switch valve (10) is disposed on the exhaust pipeline.
8. The backwashing device of the multicore ceramic membrane module of claim 1, wherein a liquid level sensor is provided at an upper portion inside the backwashing tank (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220387817.9U CN217367897U (en) | 2022-02-25 | 2022-02-25 | Back washing device of multi-core ceramic membrane component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220387817.9U CN217367897U (en) | 2022-02-25 | 2022-02-25 | Back washing device of multi-core ceramic membrane component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217367897U true CN217367897U (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220387817.9U Active CN217367897U (en) | 2022-02-25 | 2022-02-25 | Back washing device of multi-core ceramic membrane component |
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| Country | Link |
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| CN (1) | CN217367897U (en) |
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2022
- 2022-02-25 CN CN202220387817.9U patent/CN217367897U/en active Active
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