CN115011983A - Alkaline water electrolytic tank device with multiple current input binding posts - Google Patents
Alkaline water electrolytic tank device with multiple current input binding posts Download PDFInfo
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- CN115011983A CN115011983A CN202210418857.XA CN202210418857A CN115011983A CN 115011983 A CN115011983 A CN 115011983A CN 202210418857 A CN202210418857 A CN 202210418857A CN 115011983 A CN115011983 A CN 115011983A
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- binding posts
- current input
- terminals
- alkaline water
- multiple current
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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
-
- 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
-
- 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
Abstract
The invention relates to an alkaline water electrolytic cell device with multiple current input binding posts, which comprises a cell body and an electrolytic diaphragm arranged in the cell body, wherein the electrolytic diaphragm divides the inner cavity of the cell body into two independent chambers: a cathode chamber and an anode chamber; the cathode cavity is provided with a cathode electrode, the anode cavity is provided with an anode electrode, the cathode electrode is connected with a first group of binding posts, the anode electrode is connected with a second group of binding posts, the first group of binding posts and the second group of binding posts are composed of a plurality of binding posts and are respectively connected with different positions of the cathode electrode and the anode electrode. The invention improves the current distribution by adopting the design of a plurality of current input binding posts, leads the distribution to tend to be uniform and leads the electrolytic cell 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 electrolytic tank device with multiple current input binding posts.
Background
The non-renewable nature of fossil energy, and the consequent problems of atmospheric pollution and global warming, have led to the eye towards renewable energy sources, represented by hydrogen energy. Hydrogen energy is used as a brand-new energy system, and the preparation process of the hydrogen energy is the key core. The hydrogen production by alkaline electrolysis of water can be coupled with electric power, the electrolytic cell also has certain power fluctuation adaptability, the method has the advantages that the purity of the produced hydrogen is high, the subsequent purification process is simple, and the hydrogen production raw material is water, so that the problem of resource shortage does not need to be worried about. With the development of alkaline electrolyzer technology, the research demand for large alkaline water electrolyzers is gradually increasing.
The electrolysis chamber under the existing electrolysis cell technology generally only receives the current input by one terminal and outputs the current from the other terminal, such as Chinese patent 'a vehicle-mounted hydrogen fuel cell electrolysis generating cell' (with the authorization number of CN201821714922.9) and Chinese patent 'a water electrolysis hydrogen production device' (CN 201721469473.1).
However, in the case of a large alkaline water electrolyzer, the current density of the input current is high, and due to the influence of factors such as bubbles, mass transfer and heat transfer, the resistance distribution in the electrolysis cell is not uniform for a single current input terminal, which in turn causes current distribution to be non-uniform, and the operation of the electrolyzer cannot be stabilized.
Disclosure of Invention
The present invention is to solve the above problems and to provide an alkaline water electrolyzer unit with multiple current input terminals, which improves the current distribution by adopting the multiple current input terminal design, so that the distribution tends to be uniform and the electrolyzer can operate stably.
The purpose of the invention is realized by the following technical scheme:
an alkaline water electrolyzer device provided with multiple current input terminals, comprising a tank body and an electrolytic diaphragm arranged in the tank body, wherein the electrolytic diaphragm divides the inner cavity of the tank body into two independent chambers: a cathode chamber and an anode chamber;
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 binding posts, the anode electrode is connected with the second group of binding posts,
the first group of binding posts and the second group of binding posts are both composed of a plurality of binding posts and are respectively connected to the cathode electrode and the anode electrode.
And the current input and output of the first group of binding posts and the second group of binding posts are respectively controlled.
Furthermore, the electrolytic cell is a closed box body, and the electrolytic diaphragm is vertically arranged in the middle of the interior of the cell body.
Furthermore, a liquid inlet for introducing electrolyte is formed in the lower portion of the cathode cavity, and a hydrogen channel is formed in the upper portion of the cathode cavity.
Furthermore, 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.
Furthermore, the lower part of the anode cavity is provided with an electrolyte inlet, and the upper part of the anode cavity is provided with an oxygen channel.
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 binding posts and the second group of binding posts are connected with the pulse voltage generator through conducting wires.
Furthermore, the first group of binding posts and the second group of binding posts are respectively provided with a plurality of binding posts.
Further, the posts are disposed around the circumference of the cathode and anode electrodes.
Furthermore, the number of the first group of binding posts and the number of the second group of binding posts are 3-6 respectively, and the first group of binding posts and the second group of binding 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 electrolysis in the electrolysis cell, the structure fully considers the problem of uneven distribution of resistance in the alkaline electrolysis cell during electrolysis under heavy current, the current during electrolysis is input from a plurality of different directions, and because of the uniformity of the distribution of the binding posts, the current superposition effect on each area tends to be consistent, the current distribution tends to be uniform, and the current distribution in the electrolysis cell is balanced; meanwhile, the design of the plurality of wiring posts is convenient for accurately regulating and controlling the current distribution, the working state of the electrolytic cell can be effectively regulated, the condition of over severe regional reaction is avoided, and the production safety is guaranteed.
Drawings
FIG. 1 is a schematic structural view of the electrolytic cell;
FIG. 2 is a schematic cross-sectional view of a cathode electrode (3 terminal posts);
FIG. 3 is a schematic cross-sectional view of a cathode electrode (6 terminal 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 binding posts, 6 is a second group of binding 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 is described in detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic structural diagram of an alkaline water electrolytic cell device of the present invention, in the device, the electrolytic cell is a closed box body, an electrolytic diaphragm 2 is vertically installed in the middle part inside the cell body 1, a hydrogen passage 3 and an oxygen passage 4 are respectively arranged on the left side and the right side above the cell body, a first group of binding posts 5 and a second group of binding posts 6 are installed on the left side and the right side of the middle part outside the cell body, and as shown in FIG. 2, there are three binding posts in each group; in another embodiment, as shown in fig. 3, 6 posts are provided. The first group of terminals 5 and the second group of terminals 6 are all penetrated through the tank body 1, the bottom of the first group of terminals 5 is connected with a cathode electrode 7, the bottom of the second group of terminals 6 is connected with an anode electrode 8, a liquid inlet 9 is arranged at the lower part of the outer left side surface of the tank body, and an electrolyte liquid inlet 10 is arranged at the lower part of the outer right side surface of the tank body.
During specific implementation, electrolyte enters the electrolytic cell through the liquid inlet 9, the external power supply inputs current from three directions to the anode electrode 8 through the second group of binding posts 6, and the current is output through the first group of binding posts 5 after passing through the electrolyte, the diaphragm 2 and the cathode electrode 7, so that the electrolytic process is carried out. Hydrogen generated during the electrolysis is discharged through the hydrogen passage 3, and oxygen generated is discharged through the oxygen passage 4.
Wherein the tops of the first group of terminals 5 and the second group of terminals 6 can be connected with the pulse voltage generator through a lead.
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 a gas purification and drying device and the like.
The current input and output of the first group of binding posts 5 and the second group of binding posts 6 can be respectively controlled, meanwhile, the design scheme is not limited to the design of three binding posts in the same group, and the number of the binding posts such as four binding posts and five binding posts 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 distribution of resistance in the alkaline electrolysis cell during electrolysis under large current, the current during electrolysis is input from a plurality of different directions, and because of the uniformity of the distribution of the binding posts, the current superposition effect on each area tends to be consistent, the current distribution tends to be uniform, and the current distribution in the electrolysis cell is balanced; meanwhile, the design of the plurality of wiring posts is convenient for accurately regulating and controlling the current distribution, the working state of the electrolytic cell can be effectively regulated, the condition of over severe regional reaction is avoided, and the production safety is guaranteed.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, 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 embodiments, and those skilled in the art should make modifications and alterations without departing from the scope of the present invention.
Claims (10)
1. The alkaline water electrolytic cell device provided with the multiple current input binding posts is characterized by comprising a cell body (1) and an electrolytic diaphragm (2) installed in the cell body (1), wherein the electrolytic diaphragm (2) divides an inner cavity of the cell body (1) into two independent chambers: a cathode chamber and an anode chamber;
a cathode electrode (7) is arranged in the cathode cavity, an anode electrode (8) is arranged in the anode cavity, the device is characterized in that,
the cathode electrode (7) is connected with a first group of binding posts (5), the anode electrode (8) is connected with a second group of binding posts (6),
the first group of binding posts (5) and the second group of binding posts (6) are both composed of a plurality of binding posts and are respectively connected to the cathode electrode (7) and the anode electrode (8).
2. An alkaline water electrolyzer device with multiple current input terminals as claimed in claim 1 characterized in that the electrolyzer is a closed box body, and the electrolytic diaphragm (2) is vertically arranged in the middle part of the inside of the electrolyzer body (1).
3. An alkaline water electrolyzer apparatus provided with multiple current input terminals as claimed in claim 1 characterized in that the cathode chamber is provided at its lower part with an inlet (9) for the passage of electrolyte and at its upper part with a hydrogen channel (3).
4. An alkaline water electrolyzer apparatus with multiple current input terminals as claimed in claim 3 characterized in that the inlet (9) is connected to a water pump and an electrolyte storage tank, and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
5. An alkaline water electrolyzer apparatus provided with multiple current input terminals as claimed in claim 1 characterized in that the lower part of the anode chamber is provided with an electrolyte inlet (10) and the upper part is provided with an oxygen channel (4).
6. An alkaline water electrolyzer apparatus with multiple current input terminals as claimed in claim 5 wherein the electrolyte inlet (10) is connected to a water pump and an electrolyte storage tank and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
7. An alkaline water electrolyzer apparatus provided with multiple current input terminals according to claim 1 characterized in that the tops of the terminals (5) of the first set and the terminals (6) of the second set are connected to a pulse voltage generator by wires.
8. An alkaline water electrolyzer apparatus provided with multiple current input terminals according to claim 1 characterized in that the first set of terminals (5) and the second set of terminals (6) are provided with a plurality of terminals, respectively.
9. An alkaline water electrolyser system provided with multiple current input terminals as claimed in claim 8 wherein said terminals are disposed around the circumference of said cathode (7) and anode (8) electrodes.
10. An alkaline water electrolyzer apparatus provided with multiple current input terminals according to claim 9 characterized in that the first set of terminals (5) and the second set of terminals (6) are provided with 3-6 terminals, respectively, and are arranged around the cathode electrode (7) and the anode electrode (8) at equal intervals.
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 true CN115011983A (en) | 2022-09-06 |
| CN115011983B CN115011983B (en) | 2023-07-04 |
Family
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Family Applications (1)
| 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 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115011983B (en) |
| WO (1) | WO2023202017A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023202017A1 (en) * | 2022-04-20 | 2023-10-26 | 同济大学 | Alkaline water electrolyser device provided with multi-current input binding posts |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013028822A (en) * | 2011-07-26 | 2013-02-07 | Toshiba Corp | Apparatus and method for electrolyzing alkaline water |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19541255A1 (en) * | 1995-11-06 | 1997-05-07 | Varta Batterie | Galvanic cell |
| WO2014046556A1 (en) * | 2012-09-20 | 2014-03-27 | John Abrahamson | Method for forming an electrical connection to a conductive fibre electrode and electrode so formed |
| 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 |
| 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 |
-
2022
- 2022-04-20 CN CN202210418857.XA patent/CN115011983B/en active Active
- 2022-10-24 WO PCT/CN2022/127080 patent/WO2023202017A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013028822A (en) * | 2011-07-26 | 2013-02-07 | Toshiba Corp | Apparatus and method for electrolyzing alkaline water |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 江悦 等: "\"碱性电解槽运行特性数字孪生模型构建及仿真\"", 《电工技术学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023202017A1 (en) * | 2022-04-20 | 2023-10-26 | 同济大学 | Alkaline water electrolyser device provided with multi-current input binding posts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115011983B (en) | 2023-07-04 |
| WO2023202017A1 (en) | 2023-10-26 |
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