CN224062513U - Dense water circulating device of ceramic membrane - Google Patents
Dense water circulating device of ceramic membraneInfo
- Publication number
- CN224062513U CN224062513U CN202520731756.7U CN202520731756U CN224062513U CN 224062513 U CN224062513 U CN 224062513U CN 202520731756 U CN202520731756 U CN 202520731756U CN 224062513 U CN224062513 U CN 224062513U
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- China
- Prior art keywords
- ceramic membrane
- pipeline
- water
- circulation
- concentrate
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a ceramic membrane concentrated water circulating device, which relates to the technical field of water treatment and comprises a ceramic membrane component, wherein one end of the ceramic membrane component is provided with a water inlet pipeline, the other end of the ceramic membrane component is provided with a concentrated water pipeline and a water production pipeline, the ceramic membrane component further comprises a circulating pipeline, the circulating pipeline is connected between the concentrated water pipeline and the water inlet pipeline, a circulating pump is arranged on the circulating pipeline and is used for pumping water discharged into the concentrated water pipeline back to the water inlet pipeline, and the starting power of the circulating pump controls the circulating flow rate of the concentrated water end to be in the range of 0.1-1.0 m/s. According to the utility model, the circulating pump is arranged at the concentrated water end of the ceramic membrane component, the water treatment performance of the ceramic membrane is optimized by controlling the flow rate of the concentrated water end to be 0.1-1.0m/s, the surface flow rate of the ceramic membrane is controlled within a reasonable range, the energy consumption is reduced, meanwhile, the deposition of pollutants is prevented, the anti-pollution capability of the ceramic membrane is greatly improved, and the application range of the ceramic membrane in the water treatment field is widened.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a ceramic membrane concentrated water circulating device which is suitable for the fields of industrial wastewater treatment, drinking water purification, sea water desalination, brine, mine water and the like.
Background
At present, the conventional ceramic membrane device at home and abroad mainly adopts a large cross-flow mode to operate, and a circulating pump is arranged at the water inlet end of the ceramic membrane, as shown in fig. 1. The circulation flow rate is generally designed between 1 and 7m/s, for example, for ceramic membrane devices of the type known from Pall Corporation. In recent years, ceramic membrane devices of micro cross flow operation mode are proposed by some companies in the United states and Japan, the water inflow flow rate is designed to be about 0.1m/s, and the flow rate of the concentrated water end is designed to be about 0.01 m/s. However, the large cross-flow mode has high energy consumption, while the micro cross-flow mode has low energy consumption, but the requirements on suspended matters in the inlet water are strict, generally less than 20 mg/L, and particularly when treating high-concentration wastewater, the suspended matters on the membrane are easily accumulated due to slow water flow speed, so that the problems of serious membrane pollution, quick flux reduction and the like exist.
Therefore, there is an urgent need for a ceramic membrane concentrated water circulation device capable of controlling the flow rate of the concentrated water end of the ceramic membrane within a reasonable range, so as to balance between energy consumption and treatment efficiency, thereby reducing operation energy consumption, reducing membrane pollution and prolonging the service life of the membrane.
Disclosure of utility model
In view of the above, the present utility model provides a ceramic membrane concentrated water circulation device, which aims to solve the above technical problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
A ceramic membrane concentrated water circulating device comprises a ceramic membrane component, a circulating pipeline, a water inlet pipeline, a concentrated water outlet pipeline, a water inlet pipeline, a water outlet pipeline and a water outlet pipeline, wherein one end of the ceramic membrane component is provided with a water inlet pipeline, and the other end of the ceramic membrane component is provided with a concentrated water outlet pipeline;
The circulating pipeline is connected between the concentrated water pipeline and the water inlet pipeline, a circulating pump is arranged on the circulating pipeline and used for pumping water discharged into the concentrated water pipeline back to the water inlet pipeline, and the starting power of the circulating pump controls the circulating flow rate of the concentrated water end to be in the range of 0.1-1.0 m/s.
According to the technical scheme, the circulating pump is arranged at the concentrated water end of the ceramic membrane component, the flow rate of the concentrated water end is controlled to be 0.1-1.0m/s, the water treatment performance of the ceramic membrane is optimized, the surface flow rate of the membrane is controlled within a reasonable range, the energy consumption is reduced, meanwhile, pollutant deposition is prevented, the inlet water suspended matters are improved to be more than 2000mg/L from 20mg/L in the micro cross flow process, the anti-pollution capability of the ceramic membrane is greatly improved, and the application range of the ceramic membrane in the water treatment field is widened.
Preferably, in the above-mentioned ceramic membrane concentrate water circulation device, a water inlet pump and a first automatic valve are installed on the water inlet pipe, the first automatic valve is close to the ceramic membrane module, and an interface between the circulation pipe and the water inlet pipe is located between the first automatic valve and the ceramic membrane module.
Preferably, in the ceramic membrane concentrated water circulation device, a second automatic valve and a first flow sensor are installed on the water production pipeline, and the second automatic valve is close to the ceramic membrane assembly.
Preferably, in the above-mentioned ceramic membrane concentrate circulation device, a stop valve and a second flow sensor are installed on the concentrate pipeline, the second flow sensor is close to the ceramic membrane assembly, and an interface between the circulation pipeline and the concentrate pipeline is located between the stop valve and the ceramic membrane assembly.
Preferably, in the ceramic membrane concentrate circulation device, a third automatic valve and a third flow sensor are further installed on the circulation pipeline, the third automatic valve is close to the concentrate pipeline, and the third flow sensor is located between the third automatic valve and the circulation pump or between the circulation pump and the water inlet pipeline.
Preferably, in the above-mentioned ceramic membrane dense water circulating apparatus, the apparatus further comprises a pressure sensor provided on the pipeline.
Preferably, in the above-mentioned ceramic membrane dense water circulating device, the device further comprises a control system, wherein the control system is used for controlling and adjusting the flow according to the flow and the pressure detected by each flow sensor and the pressure sensor.
Preferably, in the above-mentioned ceramic membrane dense water circulating apparatus, the ceramic membrane pore diameter of the ceramic membrane assembly is in the range of 0.01-1 μm.
Compared with the prior art, the utility model discloses a ceramic membrane concentrated water circulating device, which has the following beneficial effects:
1. Compared with a large cross flow mode, the circulating flow velocity is low, and the energy consumption is remarkably reduced. The circulating pump is arranged on the concentrated water side, so that the power and the energy consumption of the circulating pump are obviously reduced, and the equipment cost and the operation energy consumption are reduced.
2. The treatment efficiency is improved, namely the treatment efficiency of the ceramic membrane is improved by optimizing the circulation flow rate and the concentrated water reflux, and the ceramic membrane is particularly suitable for treating high-concentration wastewater.
3. Membrane pollution is reduced by cleaning and optimizing operation parameters periodically, and the service life of the ceramic membrane is prolonged.
4. The invention is suitable for various water quality conditions including industrial wastewater, drinking water, seawater, brine, mine water and the like.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a ceramic membrane device operating in a large cross-flow mode in the prior art;
FIG. 2 is a schematic diagram of a first ceramic membrane concentrate circulation device provided by the utility model;
FIG. 3 is a schematic diagram of a second ceramic membrane dense water circulating apparatus provided by the utility model.
Wherein:
1-a ceramic membrane module;
2-a water inlet pipeline;
21-a water inlet pump, 22-a first automatic valve;
3-a concentrated water pipeline;
31-a shut-off valve, 32-a second flow sensor;
4-a water production pipeline;
41-a second automatic valve 42-a first flow sensor;
5-a circulation pipeline;
51-a circulation pump, 52-a third automatic valve and 53-a third flow sensor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 2, the embodiment of the utility model discloses a ceramic membrane concentrated water circulating device, which comprises a ceramic membrane component 1, a circulating pipeline 5, a water inlet pipeline 2, a concentrated water pipeline 3 and a water producing pipeline 4, wherein one end of the ceramic membrane component 1 is provided with the water inlet pipeline 2;
The circulating pipeline 5 is connected between the concentrated water pipeline 3 and the water inlet pipeline 2, the circulating pump 51 is arranged on the circulating pipeline 5 and is used for pumping water discharged into the concentrated water pipeline 3 back to the water inlet pipeline 2, and the starting power of the circulating pump 51 controls the circulating flow rate of the concentrated water end to be in the range of 0.1-1.0 m/s.
According to the utility model, the rotation speed of the circulating pump 51 is regulated according to the quality of the water, such as the concentration, viscosity and the like of suspended matters, so that the circulating flow rate of the concentrated water end is kept between 0.1 and 1.0m/s, and the fouling and blocking speed of the ceramic membrane is slowed down.
Through the concentrated water backward flow, with partial concentrated water backward flow to the end of intaking, reduce the waste water emission, improve treatment efficiency simultaneously.
In order to further optimize the above technical solution, the water inlet pump 21 and the first automatic valve 22 are installed on the water inlet pipe 2, and in this embodiment, the first automatic valve 22 may be pneumatic or electric, or may be a regulating valve or a switching valve, the first automatic valve 22 is close to the ceramic membrane assembly 1, and the interface between the circulation pipe 5 and the water inlet pipe 2 is located between the first automatic valve 22 and the ceramic membrane assembly 1.
In order to further optimize the technical scheme, the second automatic valve 41 and the first flow sensor 42 are installed on the water production pipeline 4, the second automatic valve 41 can be pneumatic or electric, or can be a regulating valve or a switching valve, and the second automatic valve 41 is close to the ceramic membrane assembly 1.
In order to further optimize the technical scheme, the stop valve 31 and the second flow sensor 32 are arranged on the concentrated water pipeline 3, the second flow sensor 32 is close to the ceramic membrane assembly 1, and the interface between the circulating pipeline 5 and the concentrated water pipeline 3 is positioned between the stop valve 31 and the ceramic membrane assembly 1.
In order to further optimize the technical scheme, a third automatic valve 52 and a third flow sensor 53 are further installed on the circulating pipeline 5, the third automatic valve 52 can be pneumatic or electric, or can be a regulating valve or a switching valve, the third automatic valve 52 is close to the concentrate pipeline 3, and the third flow sensor 53 is located between the third automatic valve 52 and the circulating pump 51.
In order to further optimize the technical scheme, the device further comprises a pressure sensor arranged on the pipeline.
In order to further optimize the technical scheme, the system further comprises a control system, wherein the control system is used for controlling and adjusting the flow according to the flow and the pressure detected by each flow sensor and the pressure sensor.
In this embodiment, a ceramic membrane material with high pollution resistance and high flux is adopted, and the pore diameter of the ceramic membrane component 1 ranges from 0.01 to 1 micrometer.
In this embodiment, in order to control membrane pollution, chemical cleaning and physical cleaning, such as back flushing, are combined by using acid and alkali cleaning agents at regular intervals, so that membrane pollution is reduced and the service life of the membrane is prolonged.
When the chemical cleaning is performed, the circulating pump 51 is started, so that the cleaning liquid can be mixed more uniformly, and the cleaning effect is more thorough.
The utility model prolongs the interval period of chemical cleaning, the interval period is prolonged by more than 10 times, and the pollution of cleaning agents and environment is reduced by more than 90 percent.
Referring to fig. 3, the ceramic membrane concentrated water circulating device is another type, mainly, the position of a water inlet pipeline 2 is changed into upper inlet water, a water outlet pipeline 3 is changed into lower outlet concentrated water, and the layout form is changed. The third flow sensor 53 is repositioned between the outlet of the circulation pump 51 and the water inlet line 2 and other specific features are identical to those described above.
Example 1:
The embodiment aims at treating industrial wastewater:
The apparatus was configured by using a ceramic membrane having a pore size of 0.05 μm, and the circulation pump 51 was set to a circulation flow rate of 0.5 m/s.
The operation process is that the industrial wastewater is introduced into the device, the wastewater is sent into the ceramic membrane component 1 through the circulating pump 51, the concentrated water partially flows back to the water inlet end, and the clean water is discharged through the membrane holes.
The cleaning mode is that back flushing is carried out once every 1 hour of operation, and chemical cleaning is carried out once every 15 days of operation.
The method has the advantages that the removal rate of suspended matters in the treated wastewater is more than 99.9%, and the energy consumption is reduced by more than 78% compared with the traditional large cross flow mode.
Example 2:
This example deals with drinking water:
The apparatus was configured by using a ceramic membrane having a pore size of 0.03 μm, and the circulation pump 51 was set to a circulation flow rate of 0.1 m/s.
The operation process is that the raw water is introduced into the device, and clean drinking water is obtained after the raw water is filtered by the ceramic membrane, and the concentrated water is partially returned to the water inlet end.
The cleaning mode is that back flushing is carried out once every 40 minutes of operation, and chemical cleaning is carried out once every 30 days of operation.
The method has the advantages that the treated drinking water meets the national drinking water standard, and the cleaning period is prolonged by more than 10 times.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520731756.7U CN224062513U (en) | 2025-04-17 | 2025-04-17 | Dense water circulating device of ceramic membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520731756.7U CN224062513U (en) | 2025-04-17 | 2025-04-17 | Dense water circulating device of ceramic membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224062513U true CN224062513U (en) | 2026-03-31 |
Family
ID=99192027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520731756.7U Active CN224062513U (en) | 2025-04-17 | 2025-04-17 | Dense water circulating device of ceramic membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224062513U (en) |
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2025
- 2025-04-17 CN CN202520731756.7U patent/CN224062513U/en active Active
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