CN115011983B - Alkaline water electrolysis bath device with multiple current input binding posts - Google Patents
Alkaline water electrolysis bath device with multiple current input binding posts Download PDFInfo
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- CN115011983B CN115011983B CN202210418857.XA CN202210418857A CN115011983B CN 115011983 B CN115011983 B CN 115011983B CN 202210418857 A CN202210418857 A CN 202210418857A CN 115011983 B CN115011983 B CN 115011983B
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
- C25B15/023—Measuring, analysing or testing during electrolytic production
- C25B15/025—Measuring, analysing or testing during electrolytic production of electrolyte parameters
- C25B15/033—Conductivity
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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
- 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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Automation & Control Theory (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to an alkaline water electrolysis cell device with multiple current input binding posts, which comprises a cell body and an electrolysis diaphragm arranged in the cell body, wherein the electrolysis diaphragm divides the inner cavity of the cell body into two independent chambers: a cathode cavity and an anode cavity; the cathode cavity is internally provided with a cathode electrode, the anode cavity is internally provided with an anode electrode, the cathode electrode is connected with a first group of connecting posts, the anode electrode is connected with a second group of connecting posts, the first group of connecting posts and the second group of connecting posts are composed of a plurality of binding posts and are respectively connected to different positions of the cathode electrode and the anode electrode. The invention adopts the design of multiple current input binding posts, improves the current distribution, leads the distribution to be uniform and leads the electrolytic tank to work stably.
Description
Technical Field
The invention relates to the technical field of hydrogen production by water electrolysis, in particular to an alkaline water electrolysis tank device with a plurality of current input binding posts.
Background
The non-renewable nature of fossil energy sources, with the consequent problems of atmospheric pollution and global warming, has led to the introduction of light towards renewable energy sources, represented by hydrogen energy. Hydrogen energy is used as a brand new energy system, and the preparation process is a key core. The alkaline water electrolysis hydrogen production can be coupled with electric power, and the electrolytic tank also has certain power fluctuation adaptability, so the method has the advantages that the purity of the prepared hydrogen is high, the subsequent purification process is simple, the hydrogen production raw material is water, and the problem of insufficient resources is not required to be worried about. With the development of alkaline electrolysis cell technology, the research demand for large-scale alkaline water electrolysis cells is gradually increasing.
The existing electrolysis cell technology generally only receives the current input by one binding post and outputs the current from the other binding post, for example, chinese patent 'an on-vehicle hydrogen fuel cell electrolysis generating tank' (grant number CN 201821714922.9) and Chinese patent 'an electrolytic water hydrogen production device' (CN 201721469473.1).
However, for large-scale alkaline water electrolytic baths, the input current density is high, and the distribution of the resistance in the electrolytic cell of a single current input terminal is extremely uneven due to the influence of factors such as bubbles, mass transfer, heat transfer and the like, so that the current distribution is uneven, and the operation of the electrolytic bath cannot be stabilized.
Disclosure of Invention
The invention aims to solve the problems and provide an alkaline water electrolysis bath device with a plurality of current input binding posts, which improves the current distribution by adopting the design of the plurality of current input binding posts, leads the distribution to be uniform and ensures that the electrolysis bath can work stably.
The aim of the invention is achieved by the following technical scheme:
an alkaline water electrolysis cell device with a plurality of current input binding posts comprises a cell body and an electrolysis diaphragm arranged in the cell body, wherein the electrolysis diaphragm divides an inner cavity of the cell body into two independent chambers: a cathode cavity and an anode cavity;
a cathode electrode is arranged in the cathode cavity, an anode electrode is arranged in the anode cavity,
the cathode electrode is connected with the first group of connecting posts, the anode electrode is connected with the second group of connecting posts,
the first set of wiring posts and the second set of wiring posts are composed of a plurality of wiring posts and are respectively connected to the cathode electrode and the anode electrode.
The current input and output of the first set of connecting posts and the second set of connecting posts are respectively controlled.
Further, the electrolytic tank is a closed tank body, and the electrolytic diaphragm is vertically arranged in the middle part inside the tank body.
Further, a liquid inlet for introducing electrolyte is arranged at the lower part of the cathode cavity, and a hydrogen channel is arranged at the upper part of the cathode cavity.
Further, the liquid inlet is connected with a water pump and an electrolyte storage tank, and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
Further, an electrolyte inlet is arranged at the lower part of the anode cavity, and an oxygen channel is arranged at the upper part of the anode cavity.
Further, the liquid inlet is connected with a water pump and an electrolyte storage tank, and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
Further, the tops of the first group of connecting posts and the second group of connecting posts are connected with a pulse voltage generator through wires.
Further, the first set of connecting posts and the second set of connecting posts are respectively provided with a plurality of connecting posts.
Further, the binding posts are disposed around the circumferences of the cathode electrode and the anode electrode.
Further, the first set of connecting posts and the second set of connecting posts are respectively provided with 3-6 connecting posts, and the connecting posts are arranged around the cathode electrode and the anode electrode at equal intervals.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts a plurality of current input binding posts to provide current for the electrolysis in the electrolysis cell, the structure fully considers the problem of uneven resistance distribution in the alkaline electrolysis cell during the electrolysis under large current, the current is input from a plurality of different directions during the electrolysis, the current superposition effect received by each region tends to be consistent due to the uniformity of the distribution of the binding posts, the current distribution tends to be uniform, and the current distribution in the electrolysis cell is balanced; meanwhile, the design of the wiring columns is convenient for accurately regulating and controlling the current distribution, the working state of the electrolytic tank can be effectively regulated, the situation that regional reaction is too severe is avoided, and the production safety is ensured.
Drawings
FIG. 1 is a schematic view of the structure of the present electrolytic cell;
FIG. 2 is a schematic cross-sectional view of a cathode electrode (3 posts);
FIG. 3 is a schematic cross-sectional view of a cathode electrode (6 posts); in the figure, 1 is a tank body, 2 is a diaphragm, 3 is a hydrogen channel, 4 is an oxygen channel, 5 is a first group of connecting posts, 6 is a second group of connecting posts, 7 is a cathode electrode, 8 is an anode electrode, 9 is a liquid inlet, and 10 is an electrolyte liquid inlet.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
FIG. 1 is a schematic view of an alkaline water electrolysis cell device, in the device, an electrolysis cell is a closed box body, an electrolysis diaphragm 2 is vertically arranged at the middle part inside the cell body 1, a hydrogen channel 3 and an oxygen channel 4 are respectively arranged at the left side and the right side above the cell body, a first group of connecting posts 5 and a second group of connecting posts 6 which are uniformly distributed are arranged at the left side and the right side of the middle part outside the cell body, as shown in FIG. 2, and three connecting posts are arranged in each group; in another embodiment, as shown in fig. 3, 6 posts are provided. The first group of connecting columns 5 and the second group of connecting columns 6 penetrate through the tank body 1, the bottom of the first group of connecting columns 5 is connected with the cathode electrode 7, the bottom of the second group of connecting columns 6 is connected with the anode electrode 8, the lower part of the left side face outside the tank body is provided with the liquid inlet 9, and the lower part of the right side face outside the tank body is provided with the electrolyte liquid inlet 10.
In specific implementation, electrolyte enters the electrolytic tank through the liquid inlet 9, an external power supply inputs current from three directions to the anode electrode 8 through the second set of connecting posts 6, and the current is output through the first set of connecting posts 5 after passing through the electrolyte, the diaphragm 2 and the cathode electrode 7, so that an electrolysis process is performed. The hydrogen produced by the electrolysis process is discharged through the hydrogen channel 3, and the produced oxygen is discharged through the oxygen channel 4.
Wherein the tops of the first set of studs 5 and the second set of studs 6 may be connected to a pulse voltage generator by wires.
Wherein the liquid inlet 9 can be connected with a water pump and an electrolyte storage tank, and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
Wherein the electrolyte inlet 10 can be connected with a water pump and an electrolyte storage tank, and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
Wherein the hydrogen channel 3 and the oxygen channel 4 can be connected with devices such as gas purification, drying and the like.
The current input and output of the first set of connecting posts 5 and the second set of connecting posts 6 can be controlled respectively, and the design scheme is not limited to the design of three connecting posts in the same set of connecting posts, and the number of four connecting posts, five connecting posts and the like can be designed according to the requirement.
The device adopts a plurality of current input binding posts to provide current for electrolysis in the electrolysis cell, the structure fully considers the problem of uneven resistance distribution in the alkaline electrolysis cell during electrolysis under high current, the current is input from a plurality of different directions during electrolysis, the current superposition effect received by each region tends to be consistent due to the uniformity of the distribution of the binding posts, the current distribution tends to be uniform, and the current distribution in the electrolysis cell is balanced; meanwhile, the design of the wiring columns is convenient for accurately regulating and controlling the current distribution, the working state of the electrolytic tank can be effectively regulated, the situation that regional reaction is too severe is avoided, and the production safety is ensured.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (8)
1. The utility model provides an alkaline water electrolysis cell device with many electric current input terminal, its characterized in that includes cell body (1) and installs electrolysis diaphragm (2) in cell body (1), electrolysis diaphragm (2) will the inner chamber segmentation of cell body (1) forms two independent cavities: a cathode cavity and an anode cavity;
a cathode electrode (7) is arranged in the cathode cavity, an anode electrode (8) is arranged in the anode cavity, and the device is characterized in that,
the cathode electrode (7) is connected with the first group of connecting posts (5), the anode electrode (8) is connected with the second group of connecting posts (6),
the first group of wiring columns (5) and the second group of wiring columns (6) are composed of a plurality of wiring columns and are respectively connected to the cathode electrode (7) and the anode electrode (8);
the first group of connecting posts (5) and the second group of connecting posts (6) are respectively provided with a plurality of connecting posts, and the connecting posts are arranged around the circumferences of the cathode electrode (7) and the anode electrode (8).
2. The alkaline water electrolysis cell device provided with the multi-current input binding post according to claim 1, wherein the electrolysis cell is a closed box body, and the electrolysis diaphragm (2) is vertically arranged in the middle part inside the cell body (1).
3. An alkaline water electrolysis cell arrangement provided with a multi-current input terminal according to claim 1, wherein the lower part of the cathode chamber is provided with a liquid inlet (9) for the electrolyte and the upper part is provided with a hydrogen channel (3).
4. An alkaline water electrolysis cell arrangement provided with a multi-current input terminal according to claim 3, wherein the liquid inlet (9) is connected to a water pump, an electrolyte storage tank and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
5. The alkaline water electrolysis bath device provided with the multi-current input binding post according to claim 1, wherein an electrolyte inlet (10) is arranged at the lower part of the anode cavity, and an oxygen channel (4) is arranged at the upper part of the anode cavity.
6. The alkaline water electrolysis bath device with the multi-current input binding post according to claim 5, wherein the electrolyte inlet (10) is connected with a water pump and an electrolyte storage tank, and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
7. An alkaline water electrolyser unit provided with multiple current input terminals according to claim 1, characterized in that the tops of the first set of terminals (5) and the second set of terminals (6) are connected to a pulse voltage generator by wires.
8. An alkaline water electrolyser unit with multiple current input terminals according to claim 1, wherein the first set of terminals (5) and the second set of terminals (6) are provided with 3-6, respectively, equally spaced around the cathode electrode (7) and the anode electrode (8).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210418857.XA CN115011983B (en) | 2022-04-20 | 2022-04-20 | Alkaline water electrolysis bath device with multiple current input binding posts |
| PCT/CN2022/127080 WO2023202017A1 (en) | 2022-04-20 | 2022-10-24 | Alkaline water electrolyser device provided with multi-current input binding posts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210418857.XA CN115011983B (en) | 2022-04-20 | 2022-04-20 | Alkaline water electrolysis bath device with multiple current input binding posts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115011983A CN115011983A (en) | 2022-09-06 |
| CN115011983B true CN115011983B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210418857.XA Active CN115011983B (en) | 2022-04-20 | 2022-04-20 | Alkaline water electrolysis bath device with multiple current input binding posts |
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| Country | Link |
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| CN (1) | CN115011983B (en) |
| WO (1) | WO2023202017A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115011983B (en) * | 2022-04-20 | 2023-07-04 | 同济大学 | Alkaline water electrolysis bath device with multiple current input binding posts |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19541255A1 (en) * | 1995-11-06 | 1997-05-07 | Varta Batterie | Galvanic cell |
| JP2013028822A (en) * | 2011-07-26 | 2013-02-07 | Toshiba Corp | Apparatus and method for electrolyzing alkaline water |
| CN104813519B (en) * | 2012-09-20 | 2018-06-08 | 阿克爱科蒂夫有限公司 | The electrode for being used to form the method for the electrical connection of conductive fibers electrode and being formed in this way |
| CN107529564A (en) * | 2017-09-15 | 2018-01-02 | 佛山市南海区昊森机械设备有限公司 | A kind of novel electrolytic device |
| CN207512264U (en) * | 2017-11-06 | 2018-06-19 | 山西大同大学 | A kind of device for preparing hydrogen |
| CN207659530U (en) * | 2017-11-06 | 2018-07-27 | 山西大同大学 | Water electrolysis hydrogen production oxygen unit |
| CN109879376A (en) * | 2019-03-04 | 2019-06-14 | 苏州博创环保科技有限公司 | A kind of Closed electrochemical reaction unit |
| CN216039848U (en) * | 2021-07-19 | 2022-03-15 | 无锡隆基氢能科技有限公司 | Electrolytic cell |
| CN115011983B (en) * | 2022-04-20 | 2023-07-04 | 同济大学 | Alkaline water electrolysis bath device with multiple current input binding posts |
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2022
- 2022-04-20 CN CN202210418857.XA patent/CN115011983B/en active Active
- 2022-10-24 WO PCT/CN2022/127080 patent/WO2023202017A1/en unknown
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| Publication number | Publication date |
|---|---|
| CN115011983A (en) | 2022-09-06 |
| WO2023202017A1 (en) | 2023-10-26 |
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