CN111477998A - Aluminum-air battery electrolyte circulating and filtering system - Google Patents
Aluminum-air battery electrolyte circulating and filtering system Download PDFInfo
- Publication number
- CN111477998A CN111477998A CN202010463247.2A CN202010463247A CN111477998A CN 111477998 A CN111477998 A CN 111477998A CN 202010463247 A CN202010463247 A CN 202010463247A CN 111477998 A CN111477998 A CN 111477998A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- filter
- air battery
- liquid inlet
- electrolyte
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04276—Arrangements for managing the electrolyte stream, e.g. heat exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention discloses an aluminum-air battery electrolyte circulating and filtering system, which comprises an aluminum-air battery pack, a centrifugal pump, an electrolyte tank and a backwashing filter, wherein the aluminum-air battery electrolyte circulating and filtering system comprises: the electrolyte tank is provided with a liquid inlet and a liquid outlet; the back-flushing filter is provided with a drain outlet, a liquid inlet, a liquid outlet, a back-flushing liquid inlet and a filter screen; the liquid outlet of the electrolyte tank is respectively connected with the liquid inlet of the back-washing filter and the back-washing liquid inlet through a centrifugal pump and a three-way valve, the liquid outlet of the back-washing filter is connected with the liquid inlet of the aluminum air battery pack, and the liquid outlet of the aluminum air battery pack is connected with the liquid inlet of the electrolyte tank. The system can effectively discharge Al (OH) generated in the discharging process of the aluminum-air battery in time3Filtering and discharging, and monitoring the pressure difference of the filter screen by a pressure gauge, and backwashing when the filter screen is blockedThe filter screen can recover the filtering performance in a short time.
Description
Technical Field
The invention relates to an aluminum-air battery electrolyte circulating and filtering system.
Background
The aluminum-air battery is a novel chemical power supply which takes high-purity aluminum Al (containing 99.99 percent of aluminum) as a negative electrode, oxygen as a positive electrode active substance and potassium hydroxide (KOH) or sodium hydroxide (NaOH) aqueous solution as electrolyte. The aluminum-air battery has the advantages of large specific energy, light weight, no toxicity, no harm and the like.
The treatment of discharge products is a problem which needs to be solved urgently in the industrialization process of the aluminum-air battery. During the discharge of the aluminum-air battery, the aluminum electrode can generate self-corrosion reaction in a strong alkaline solution, the products of the flow reaction and the corrosion reaction are meta-aluminate, and colloidal Al (OH) can be separated out when the meta-aluminate reaches a certain concentration in the electrolyte3It is not easy to filter out in electrolyte directly. Colloidal Al (OH)3Too high a concentration may deteriorate the performance of the aluminum-air battery.
The method for separating and treating the product of the aluminum-air battery mainly comprises the methods of filtering, swirling, flocculating and the like, wherein the method for separating the product by adopting the filtering mode has the advantages of high efficiency, easiness in implementation and the like, and becomes the main mode for separating and treating the product of the aluminum-air battery. However, the conventional aluminum air battery filtration system is generally an independent system connected in series in the whole battery circulation system, which increases the volume and weight of the aluminum air battery, and most of the filtration systems adopt disposable filter elements as filtration core components, which are frequently replaced when a large amount of precipitates are treated, thereby causing inconvenience in maintenance.
Disclosure of Invention
The invention provides an aluminum-air battery electrolyte circulating and filtering system, which aims to solve the problem of product treatment of an aluminum-air battery in a discharging process. The system canCan effectively and timely discharge Al (OH) generated in the discharging process of the aluminum-air battery3Filtering and discharging, and monitoring the pressure difference of the filter screen through a pressure gauge, and recovering the filtering performance of the filter screen in a short time through back flushing when the filter screen is blocked.
The purpose of the invention is realized by the following technical scheme:
the utility model provides an aluminium air cell electrolyte circulation filtration system, includes aluminium air battery, centrifugal pump, electrolyte case and back flush filter, wherein:
the electrolyte tank is provided with a liquid inlet and a liquid outlet;
the back-flushing filter is provided with a drain outlet, a liquid inlet, a liquid outlet, a back-flushing liquid inlet and a filter screen;
the liquid outlet of the electrolyte tank is respectively connected with the liquid inlet of the back-washing filter and the back-washing liquid inlet through a centrifugal pump and a three-way valve, the liquid outlet of the back-washing filter is connected with the liquid inlet of the aluminum air battery pack, and the liquid outlet of the aluminum air battery pack is connected with the liquid inlet of the electrolyte tank;
a first pressure gauge is arranged on a pipeline between the liquid inlet of the back washing filter and the three-way valve;
and a stop valve and a second pressure gauge are sequentially arranged on a pipeline between the liquid outlet of the back washing filter and the liquid inlet of the aluminum air battery pack.
Compared with the prior art, the invention has the following advantages:
1. the structure is simple, the maintenance is convenient, the volume and the weight of the whole aluminum-air battery system are greatly reduced on the basis of meeting the requirement of separating reaction products, the service life of the filter screen can be prolonged through the back washing process under the condition of not disassembling the battery, and the specific energy and the service life of the aluminum-air battery are indirectly prolonged.
2. The lower liquid inlet type structural design can meet the pressure required by the filtering process, so that the electrolyte circulating and filtering process is smoothly carried out, and separated reaction products are not easy to accumulate on the surface of the filter screen to cause blockage, so that the separated reaction products are easier to discharge from a drain outlet below, the service life of the whole system is prolonged, and the maintenance cost is reduced.
3. The back washing system can clean the filter screen under the condition of not influencing the work of the whole battery, and the continuous discharge capacity of the whole battery pack is improved.
Drawings
Fig. 1 is a schematic structural diagram of an aluminum-air battery electrolyte circulation filtering system of the present invention, wherein: 1-an aluminum air battery pack, 2-an electrolyte tank, 3-a centrifugal pump, 4-a backwashing filter, 5-a three-way valve, 6-a stop valve, 7 a first pressure gauge and 8-a second pressure gauge;
FIG. 2 is a graph comparing the collection capacity of the precipitation filter unit and a common electrolyte tank for precipitated particles.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings, but not limited thereto, and any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention shall be covered by the protection scope of the present invention.
The invention provides an aluminum-air battery electrolyte circulating and filtering system, as shown in figure 1, the system comprises an aluminum-air battery pack 1, a centrifugal pump 3, an electrolyte tank 2 and a backwashing filter 4, wherein:
the electrolyte tank 2 is provided with a liquid inlet and a liquid outlet;
the back flush filter 4 is provided with a drain outlet 404, a liquid inlet 403, a liquid outlet 402, a back flush liquid inlet 401 and a filter screen 405;
the liquid outlet of the electrolyte tank 2 is respectively connected with the liquid inlet 403 and the back flush liquid inlet 401 of the back flush filter 4 through a centrifugal pump 3 and a three-way valve 5, the liquid outlet 402 of the back flush filter 4 is connected with the liquid inlet of the aluminum air battery pack 1, and the liquid outlet of the aluminum air battery pack 1 is connected with the liquid inlet of the electrolyte tank 2;
a first pressure gauge 7 is arranged on a pipeline between the liquid inlet 403 of the backwashing filter 4 and the three-way valve 5.
In the invention, a stop valve 6 and a second pressure gauge 8 are sequentially arranged on a pipeline between the liquid outlet 402 of the back-washing filter 4 and the liquid inlet of the aluminum air battery pack 1.
In the present invention, the material of the backwash filter 4 is 304 stainless steel.
In the present invention, the liquid outlet 402 of the back-washing filter 4 is located above the liquid inlet 403.
In the present invention, the filter screen 405 of the back-flushing filter 4 is located between the liquid inlet 403 and the liquid outlet 402.
In the present invention, the filter screen 405 of the backwash filter 4 is a stainless steel metal multilayer screen.
In the invention, the bottom of the backwashing filter 4 is set to be conical.
A method for circularly filtering an aluminum-air battery by using the system comprises the following steps:
the method comprises the following steps: electrolyte is added into the electrolyte tank 2, the three-way valve 5 is adjusted to guide the liquid inlet of the back-washing filter 4, the stop valve 6 is opened, the centrifugal pump 3 is started, and the electrolyte enters the aluminum air battery pack 1 from the electrolyte tank 2 through the back-washing filter 4 under the action of the centrifugal pump 3.
Step two: aluminum hydroxide particles generated by the aluminum air battery pack 1 enter the aluminum air battery pack 1 from a liquid inlet of the back-washing filter 4 along with the electrolyte after being preliminarily settled in the electrolyte tank 2, the filtering and separating process is completed through the filter screen 405 under the action of pressure, and the filtered clarified electrolyte enters the aluminum air battery pack 1 from a liquid outlet of the back-washing filter 4 again to complete the circulating process.
Step three: along with the proceeding of the discharging process, the collected sediment is gradually increased, and when the difference value between the first pressure gauge 7 and the second pressure gauge 8 reaches 0.05-0.1 MPa, the drain outlet 404 of the backwashing filter 4 is opened to discharge the collected sediment.
Step four: and after the sediment is discharged, closing the stop valve 6, adjusting the three-way valve 5 to guide the backwashing liquid inlet 401 of the backwashing filter 4 to perform the backwashing process, and performing backwashing for 1-3 min. After the back washing operation, the water flux recovery rate can reach 80-90%. The valves are reset and the cycle is restarted. Electrolyte discharged in the back flushing process can be added into the electrolyte tank 2 again for continuous circulation.
Step five: when the aluminum-air battery is shut down for maintenance, after the electrolyte and aluminum hydroxide precipitate are discharged, clear water can be added from the electrolyte tank for a backwashing process, and the backwashing is carried out for 5min, wherein the water flux recovery rate can reach 95%.
The aluminum hydroxide precipitate discharged from the drain outlet of the precipitation filtering device is periodically collected according to the working mode, and the quality of the aluminum hydroxide particles collected by the precipitation filtering device and a common filter screen-free electrolyte tank in the process of discharging the aluminum-air battery for 8 hours is compared, as shown in figure 2.
Claims (8)
1. The utility model provides an aluminium air battery electrolyte circulation filtration system which characterized in that the system includes aluminium air battery, centrifugal pump, electrolyte case and back flush filter, wherein:
the electrolyte tank is provided with a liquid inlet and a liquid outlet;
the back-flushing filter is provided with a drain outlet, a liquid inlet, a liquid outlet, a back-flushing liquid inlet and a filter screen;
the liquid outlet of the electrolyte tank is respectively connected with the liquid inlet of the back-washing filter and the back-washing liquid inlet through a centrifugal pump and a three-way valve, the liquid outlet of the back-washing filter is connected with the liquid inlet of the aluminum air battery pack, and the liquid outlet of the aluminum air battery pack is connected with the liquid inlet of the electrolyte tank;
a first pressure gauge is arranged on a pipeline between the liquid inlet of the back washing filter and the three-way valve;
and a stop valve and a second pressure gauge are sequentially arranged on a pipeline between the liquid outlet of the back washing filter and the liquid inlet of the aluminum air battery pack.
2. The system of claim 1, wherein the backwash filter is made of 304 stainless steel.
3. The aluminum-air battery electrolyte circulation filtration system of claim 1 or 2, wherein the liquid outlet of the backwash filter is positioned above the liquid inlet.
4. The aluminum-air battery electrolyte circulation filtration system of claim 1, wherein the filter screen of the backwash filter is positioned between the liquid inlet and the liquid outlet.
5. The aluminum-air battery electrolyte circulation filtration system of claim 1 or 4, wherein the filter screen of the backwash filter is a stainless steel metal multi-layer screen.
6. The aluminum air cell electrolyte circulation filtration system of claim 1 or 2, wherein the bottom of the backwash filter is tapered.
7. A method of circulating filtration for an aluminum air cell using the system of any one of claims 1 to 6, the method comprising the steps of:
the method comprises the following steps: adding electrolyte into an electrolyte tank, adjusting a three-way valve to guide a liquid inlet of a backwashing filter, opening a stop valve, starting a centrifugal pump, and allowing the electrolyte to enter an aluminum air battery pack from the electrolyte tank through the backwashing filter under the action of the centrifugal pump;
step two: aluminum hydroxide particles generated by the aluminum air battery pack enter the aluminum air battery pack along with the electrolyte from a liquid inlet of the back flush filter after being preliminarily settled in the electrolyte tank, the filtering and separating process is completed through the filter screen under the action of pressure, and the filtered clarified electrolyte enters the aluminum air battery pack again from a liquid outlet of the back flush filter to complete the circulating process;
step three: along with the progress of the discharging process, the collected sediment is gradually increased, and when the difference value between the first pressure gauge and the second pressure gauge reaches 0.05-0.1 MPa, a drain outlet of the backwashing filter is opened to discharge the collected sediment;
step four: and after the sediment is discharged, closing the stop valve, adjusting a three-way valve to guide a backwashing liquid inlet of the backwashing filter to perform a backwashing process, and restarting the circulation process after backwashing is performed for 1-3 min.
8. The aluminum-air battery electrolyte circulation filtering method according to claim 7, characterized in that the method further comprises the step five: when the aluminum air battery is shut down for maintenance, after the electrolyte and the aluminum hydroxide precipitate are discharged, clear water is added from the electrolyte tank for a back washing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010463247.2A CN111477998B (en) | 2020-05-27 | 2020-05-27 | Aluminum-air battery electrolyte circulating and filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010463247.2A CN111477998B (en) | 2020-05-27 | 2020-05-27 | Aluminum-air battery electrolyte circulating and filtering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111477998A true CN111477998A (en) | 2020-07-31 |
| CN111477998B CN111477998B (en) | 2023-04-07 |
Family
ID=71764891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010463247.2A Active CN111477998B (en) | 2020-05-27 | 2020-05-27 | Aluminum-air battery electrolyte circulating and filtering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111477998B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973224A (en) * | 2021-02-08 | 2021-06-18 | 清华大学 | Electrolyte circulation filtering device for fuel cell and flushing method thereof |
| CN114243234A (en) * | 2021-12-16 | 2022-03-25 | 西安工业大学 | Drainage device for power battery pack |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4735872A (en) * | 1986-11-18 | 1988-04-05 | The United States Of America As Represented By The United States Department Of Energy | Electrochemical system including lamella settler crystallizer |
| US4994332A (en) * | 1989-07-11 | 1991-02-19 | Eltech Systems Corporation | Metal hydroxide crystallizer and filter |
| CA2082184A1 (en) * | 1991-12-13 | 1993-06-14 | Richard Coin | Crystallizer filter |
| CN105161796A (en) * | 2015-09-12 | 2015-12-16 | 哈尔滨工业大学 | Aluminum air battery circulating and filtering system and method |
| CN106654464A (en) * | 2017-03-14 | 2017-05-10 | 哈尔滨工业大学 | Aluminum air battery electrolyte circulating system based on hydrocyclone effect |
| CN206806471U (en) * | 2017-05-02 | 2017-12-26 | 武汉环达电子科技有限公司 | A kind of aluminium air-fuel battery and electrolyte management system |
| CN108365282A (en) * | 2018-04-25 | 2018-08-03 | 上海交通大学 | Aluminium-air cell recycles and precipitation retracting device |
| CN110247136A (en) * | 2019-05-28 | 2019-09-17 | 武汉环达电子科技有限公司 | Aluminium fuel cell energy system under a kind of enclosed water |
| CN110743234A (en) * | 2019-11-05 | 2020-02-04 | 蔚蓝(广东)新能源科技有限公司 | Solid-liquid separation device for metal-air battery |
-
2020
- 2020-05-27 CN CN202010463247.2A patent/CN111477998B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4735872A (en) * | 1986-11-18 | 1988-04-05 | The United States Of America As Represented By The United States Department Of Energy | Electrochemical system including lamella settler crystallizer |
| US4994332A (en) * | 1989-07-11 | 1991-02-19 | Eltech Systems Corporation | Metal hydroxide crystallizer and filter |
| CA2082184A1 (en) * | 1991-12-13 | 1993-06-14 | Richard Coin | Crystallizer filter |
| EP0547512A1 (en) * | 1991-12-13 | 1993-06-23 | Eltech Systems Corporation | Crystallizer filter |
| CN105161796A (en) * | 2015-09-12 | 2015-12-16 | 哈尔滨工业大学 | Aluminum air battery circulating and filtering system and method |
| CN106654464A (en) * | 2017-03-14 | 2017-05-10 | 哈尔滨工业大学 | Aluminum air battery electrolyte circulating system based on hydrocyclone effect |
| CN206806471U (en) * | 2017-05-02 | 2017-12-26 | 武汉环达电子科技有限公司 | A kind of aluminium air-fuel battery and electrolyte management system |
| CN108365282A (en) * | 2018-04-25 | 2018-08-03 | 上海交通大学 | Aluminium-air cell recycles and precipitation retracting device |
| CN110247136A (en) * | 2019-05-28 | 2019-09-17 | 武汉环达电子科技有限公司 | Aluminium fuel cell energy system under a kind of enclosed water |
| CN110743234A (en) * | 2019-11-05 | 2020-02-04 | 蔚蓝(广东)新能源科技有限公司 | Solid-liquid separation device for metal-air battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973224A (en) * | 2021-02-08 | 2021-06-18 | 清华大学 | Electrolyte circulation filtering device for fuel cell and flushing method thereof |
| CN114243234A (en) * | 2021-12-16 | 2022-03-25 | 西安工业大学 | Drainage device for power battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111477998B (en) | 2023-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111477998B (en) | Aluminum-air battery electrolyte circulating and filtering system | |
| CN100438945C (en) | Press filtration type water purification method and device therefor | |
| CN210495475U (en) | Stable high-efficiency energy-saving sewage treatment integrated equipment | |
| CN208980475U (en) | A kind of wastewater treatment equipment of the production of lithium battery containing N-Methyl pyrrolidone | |
| CN113045054A (en) | Device and method for efficiently recovering oxalic acid from titanium oxalate waste liquid | |
| CN202983349U (en) | Self-cleaning filter for cross flow | |
| CN217773507U (en) | Ternary positive precursor production regeneration waste liquid recovery system | |
| CN214990815U (en) | Sewage treatment device for processing storage battery | |
| CN204550172U (en) | A kind of pH regulator that utilizes improves the system reclaiming waste emulsion ultrafiltration efficiency | |
| CN210699050U (en) | Waste liquid recovery processing device | |
| CN211753083U (en) | Separation processing apparatus of building abandonment mud | |
| CN218931820U (en) | Forward washing water recovery reverse osmosis water tank | |
| CN215327296U (en) | Oil-water separation ceramic membrane ultrafiltration device | |
| CN213834852U (en) | Industrial wastewater treatment tank | |
| CN213192759U (en) | Long service life's filterable back flush filter core of rolling oil | |
| CN216687683U (en) | High-output tubular ultrafiltration membrane separation system | |
| CN215102759U (en) | Deodorant discharging equipment of septic tank sewage for municipal administration environmental protection engineering | |
| CN220834532U (en) | Qualified liquid rapid filtering device | |
| CN105565415A (en) | Method for treating heavy metal wastewater by using CN filtration system | |
| CN217092452U (en) | Liquid filtering device | |
| CN214513062U (en) | Automatic back-flushing cleaning device for spray pump pipeline filter | |
| CN216711802U (en) | Filtering device for battery wastewater treatment | |
| CN219808013U (en) | Copper recovery device for microetching waste liquid | |
| CN215781757U (en) | Water treatment filter initial filtered water recovery unit | |
| CN219991257U (en) | Electrochemical water treatment filtering descaling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |