CN113445070A - Modularized electrolytic cell group - Google Patents
Modularized electrolytic cell group Download PDFInfo
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- CN113445070A CN113445070A CN202110670493.XA CN202110670493A CN113445070A CN 113445070 A CN113445070 A CN 113445070A CN 202110670493 A CN202110670493 A CN 202110670493A CN 113445070 A CN113445070 A CN 113445070A
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- electrolytic cell
- electrolytic
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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
- C25B9/70—Assemblies comprising two or more cells
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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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- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention belongs to the technical field of hydrogen production, and particularly relates to a modular electrolytic cell group, which comprises: at least three electrolysis cells; and the electrolytic tanks are connected in parallel and/or in series; the modular electrolytic cell group is formed by connecting more than three electrolytic cells in parallel and/or in series, or two electrolytic cells in series or in parallel, so that each electrolytic cell does not need to be too large, and the technical problems of inconvenient transportation, installation and maintenance of the conventional large-scale electrode cell are solved; compared with the existing single electrolytic cell, the hydrogen production amount is more flexible, and the limitation on the high hydrogen production amount is smaller.
Description
Technical Field
The invention belongs to the technical field of hydrogen production, and particularly relates to a modular electrolytic cell group.
Background
The basic working principle of the water electrolysis hydrogen production device is that a specific electrolyte solution is decomposed by utilizing electric energy to obtain the required hydrogen, namely, a pair of electrodes are immersed in the electrolyte, and a diaphragm which is separated between the electrodes to prevent gas permeation forms a water electrolysis cell. The electrolytic cell is a core device in the integrated water electrolysis hydrogen production device and is formed by combining a plurality of electrolytic cells, the number of the electrolytic cells determines the hydrogen production amount, in order to improve the hydrogen production amount, all the electrolytic cells are connected in series or in series and in parallel in the current research and development direction in the market and then fixed together to form an independent electrolytic cell whole with huge volume and dead weight.
Disclosure of Invention
The invention aims to provide a modular electrolytic cell bank.
In order to solve the above technical problems, the present invention provides a modular cell stack comprising: at least three electrolysis cells; and the electrolytic cells are connected in parallel and/or in series.
Further, the electrolytic cell includes: a trough body; a first end polar plate provided with a positive electrode and a second end polar plate provided with a negative electrode are respectively arranged at two ends of the tank body; and the tanks are connected in parallel and/or in series.
Furthermore, the tank body is provided with a hydrogen outlet suitable for being connected with a hydrogen pipeline and an oxygen outlet suitable for being connected with an oxygen pipeline.
Further, the electrolytic cell includes: a trough body; two ends of the tank body are respectively provided with an end polar plate, and the end polar plates are provided with negative electrodes; the middle of the tank body is provided with a middle polar plate which is suitable for separating the tank body into a first electrolytic tank and a second electrolytic tank, and the middle polar plate is provided with a pair of positive electrodes; the first electrolytic cell and the second electrolytic cell are connected in parallel to form an electrolytic cell unit; and the electrolytic cell units are connected in parallel and/or in series.
Furthermore, a hydrogen outlet suitable for being connected with a hydrogen pipeline and an oxygen outlet suitable for being connected with an oxygen pipeline are arranged on the first electrolytic cell and the second electrolytic cell.
Further, the tank body is provided with an electrolyte inlet suitable for being connected with an electrolyte conveying pipeline.
In yet another aspect, the present invention also provides a modular cell block comprising: two electrolytic tanks; and the two electrolytic tanks are connected in parallel or in series.
Further, the electrolytic cell adopts the electrolytic cell.
The modular electrolytic cell group has the advantages that the modular electrolytic cell group is formed by connecting more than three electrolytic cells in parallel and/or in series, or two electrolytic cells in series or in parallel, so that each electrolytic cell does not need to be too large, and the technical problems of inconvenient transportation, installation and maintenance of the conventional large-scale electrode cell are solved; compared with the existing single electrolytic cell, the hydrogen production amount is more flexible, and the limitation on the high hydrogen production amount is smaller.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a parallel connection of a modular cell bank of the present invention using the cells of example 2;
FIG. 2 is a schematic view of a series connection of the modular cell blocks of the present invention using the cells of example 2;
FIG. 3 is a schematic diagram of the series-parallel connection of the modular cell blocks of the present invention using the cells of example 2;
FIG. 4 is a schematic structural view of the cell of example 2 in the modular cell block of the present invention;
FIG. 5 is a schematic diagram of a parallel connection of a modular cell bank of the present invention using the cells of example 3;
FIG. 6 is a schematic view of a series connection of modular cell banks of the present invention using the cells of example 3;
FIG. 7 is a schematic diagram of the series-parallel connection of a modular cell bank of the present invention using the cells of example 3;
FIG. 8 is a schematic structural view of the cell of example 3 in the modular cell block of the present invention;
FIG. 9 is a schematic illustration of the connection of the cell units of example 3 in the modular cell block of the present invention.
In the figure:
electrolytic cell 10, electrolytic cell 20, electrolytic cell 30, electrolytic cell 40, electrolytic cell unit 11, electrolytic cell unit 21, electrolytic cell unit 31, electrolytic cell unit 41, first end plate 50, positive electrode 500, negative electrode 510, hydrogen outlet 52, oxygen outlet 53, end plate 60, negative electrode 600, intermediate plate 61, positive electrode 610, first electrolytic cell 62, second electrolytic cell 63, hydrogen outlet 64, oxygen outlet 65, electrolyte inlet 70.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
This example 1 provides a modular cell bank comprising: at least three electrolysis cells; and the electrolytic cells are connected in parallel and/or in series.
Specifically, in the embodiment, at least three electrolytic cells are connected in parallel and/or in series to form a modular electrolytic cell set, and the modular electrolytic cell set can replace the existing single large electrolytic cell to produce the same amount of hydrogen; and the modularized electrolytic cell group is composed of a plurality of electrolytic cells, so each electrolytic cell does not need to be too large, thereby solving the technical problems that the existing large-scale electrode cell is inconvenient to transport, install and maintain.
Specifically, compared with the existing single electrolytic cell, the modular electrolytic cell group of the embodiment has more flexible hydrogen production amount, namely the number of the electrolytic cells can be adjusted in time according to the demand of the hydrogen production amount; compared with the existing single electrolytic cell, the modular electrolytic cell group has smaller limitation on high hydrogen production amount, and in addition, the arrangement position of each electrolytic cell can be adaptively adjusted according to the condition of the accommodating space, so the modular electrolytic cell group has smaller requirement on the accommodating space compared with the existing single electrolytic cell.
Specifically, the modular cell bank may include two cells, three cells, four cells, five cells … …; for the sake of understanding, the present embodiment will specifically describe the structure of the modular electrolytic cell group by taking four electrolytic cells as an example.
Example 2
As an embodiment of the electrolytic cell.
As shown in FIG. 4, the electrolytic cell of the present example 2 comprises: a trough body; a first end polar plate 50 provided with a positive electrode 500 and a second end polar plate (not shown in the figure) provided with a negative electrode 510 are respectively arranged at two ends of the tank body; and the tanks are connected in parallel and/or in series.
Specifically, as shown in fig. 1, the four electrolytic cells are connected in parallel, that is, the positive electrodes of the electrolytic cell 10, the electrolytic cell 20, the electrolytic cell 30 and the electrolytic cell 40 are connected and then connected together to the positive electrode power supply, and the negative electrodes of the electrolytic cell 10, the electrolytic cell 20, the electrolytic cell 30 and the electrolytic cell 40 are connected and then connected together to the negative electrode power supply.
Specifically, as shown in FIG. 2, the four cells are connected in series, i.e., the positive electrode of the cell 1 is connected to the positive electrode power supply, the negative electrode of the cell 10 is connected to the positive electrode of the cell 20, the negative electrode of the cell 20 is connected to the positive electrode of the cell 30, the negative electrode of the cell 30 is connected to the positive electrode of the cell 40, and the negative electrode of the cell 40 is connected to the negative electrode power supply.
Specifically, as shown in fig. 3, four electrolytic cells are connected in parallel after being connected in series two by two, that is, the negative electrode of the electrolytic cell 10 is connected to the positive electrode of the electrolytic cell 20, the negative electrode of the electrolytic cell 30 is connected to the positive electrode of the electrolytic cell 40, the positive electrodes of the electrolytic cell 10 and the positive electrode of the electrolytic cell 30 are connected to a positive electrode power supply, and the negative electrodes of the electrolytic cell 20 and the negative electrode of the electrolytic cell 40 are connected to a negative electrode power supply.
In this embodiment, the tank body is provided with a hydrogen outlet 52 adapted to be connected to a hydrogen pipe and an oxygen outlet 53 adapted to be connected to an oxygen pipe.
Specifically, the hydrogen outlets 52 on the respective tanks may output the produced hydrogen to subsequent equipment through hydrogen pipes, respectively; the oxygen outlets 53 on each tank body can output the prepared oxygen to subsequent equipment through oxygen pipelines respectively.
Example 3
As another embodiment of the electrolytic cell.
As shown in FIG. 8, the electrolytic cell of example 3 comprises: a trough body; two ends of the tank body are respectively provided with an end polar plate 60, and the end polar plates 60 are provided with negative electrodes 600; the middle of the tank body is provided with a middle polar plate 61 which is suitable for dividing the tank body into a first electrolytic cell 62 and a second electrolytic cell 63, and the middle polar plate 61 is provided with a pair of positive electrodes 610; the first electrolytic cell 62 and the second electrolytic cell 63 are connected in parallel to form an electrolytic cell unit; and the electrolytic cell units are connected in parallel and/or in series.
Specifically, as shown in fig. 9, a first electrolytic cell 62 and a second electrolytic cell 63 are connected in parallel to form an electrolytic cell unit.
Specifically, as shown in fig. 5, four electrolytic cells (corresponding to four electrolytic cell units) are connected in parallel, that is, the positive electrodes of the electrolytic cell unit 11, the electrolytic cell unit 21, the electrolytic cell unit 31 and the electrolytic cell unit 41 are connected and then connected to the positive electrode power supply, and the negative electrodes of the electrolytic cell unit 11, the electrolytic cell unit 21, the electrolytic cell unit 31 and the electrolytic cell unit 41 are connected and then connected to the negative electrode power supply.
Specifically, as shown in fig. 6, the four electrolytic cells are connected in series, i.e., the positive electrode of the cell unit 11 is connected to the positive electrode power supply, the negative electrode of the cell unit 11 is connected to the positive electrode of the cell unit 21, the negative electrode of the cell unit 21 is connected to the positive electrode of the cell unit 31, the negative electrode of the cell unit 31 is connected to the positive electrode of the cell unit 41, and the negative electrode of the cell unit 41 is connected to the negative electrode power supply.
Specifically, as shown in fig. 7, the four electrolytic cells are connected in parallel after being connected in series two by two, that is, the negative electrode of the electrolytic cell unit 11 is connected to the positive electrode of the electrolytic cell unit 21, the negative electrode of the electrolytic cell unit 31 is connected to the positive electrode of the electrolytic cell unit 41, the positive electrodes of the electrolytic cell unit 11 and the positive electrode of the electrolytic cell unit 31 are connected to a positive electrode power supply, and the negative electrodes of the electrolytic cell unit 21 and the negative electrode of the electrolytic cell unit 41 are connected to a negative electrode power supply.
In this embodiment, the first electrolytic cell 62 and the second electrolytic cell 63 are each provided with a hydrogen outlet 64 adapted to be connected to a hydrogen pipe and an oxygen outlet 65 connected to an oxygen pipe.
Specifically, the hydrogen outlets 64 on each electrolytic cell may output the produced hydrogen to subsequent equipment through hydrogen pipes, respectively; the oxygen outlets 65 on each electrolytic cell can output the produced oxygen to subsequent equipment through oxygen pipelines respectively.
In this embodiment, the tank body is provided with an electrolyte inlet 70 adapted to be connected to an electrolyte delivery pipeline, and the electrolyte is delivered into the tank body through the electrolyte inlet 70.
Specifically, the modular cell bank of example 1 may be selected from the cells of example 2 or the cells of example 3 according to the actual application.
Specifically, when the electrolytic tanks are connected in parallel, if any electrolytic tank is abnormal, the work of the rest electrolytic tanks is not influenced, but the working current is large and the cost is high; when all the electrolytic tanks are connected in series, the working current is small, the cost is low, but if any electrolytic tank is abnormal, the rest electrolytic tanks can not work continuously; when the electrolytic tanks are connected in a parallel and series combined mode, the advantages and the disadvantages of the full parallel and full series modes can be considered; therefore, in practical application, the connection mode of the electrolytic cells in the modular electrolytic cell group needs to be selected.
Example 4
On the basis of examples 1 to 3, this example 4 provides a modular cell stack comprising: two electrolytic tanks; and the two electrolytic tanks are connected in parallel or in series.
Further, the electrolytic cell used was the electrolytic cell described in examples 2 to 3.
Specifically, the two electrolytic cells may be connected in parallel or in series, and the specific connection is described in examples 2 to 3 and will not be described herein.
In summary, the modular electrolytic cell set is formed by connecting at least three electrolytic cells in parallel and/or in series, or connecting two electrolytic cells in series or in parallel, and the modular electrolytic cell set can replace the existing single large electrolytic cell to produce the same amount of hydrogen; and the modularized electrolytic cell group is composed of a plurality of electrolytic cells, so each electrolytic cell does not need to be too large, thereby solving the technical problems that the existing large-scale electrode cell is inconvenient to transport, install and maintain.
All the parts of the devices selected in the present application are general standard parts or parts known to those skilled in the art, and the structures and principles thereof can be known to those skilled in the art through technical manuals or through routine experimental methods.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. A modular cell block, comprising:
at least three electrolysis cells; and
the electrolytic cells are connected in parallel and/or in series.
2. The modular electrolyzer group of claim 1,
the electrolytic cell comprises: a trough body;
a first end polar plate provided with a positive electrode and a second end polar plate provided with a negative electrode are respectively arranged at two ends of the tank body; and
the tanks are connected in parallel and/or in series.
3. The modular electrolyzer group of claim 2,
the tank body is provided with a hydrogen outlet suitable for being connected with a hydrogen pipeline and an oxygen outlet suitable for being connected with an oxygen pipeline.
4. The modular electrolyzer group of claim 1,
the electrolytic cell comprises: a trough body;
two ends of the tank body are respectively provided with an end polar plate, and the end polar plates are provided with negative electrodes;
the middle of the tank body is provided with a middle polar plate which is suitable for separating the tank body into a first electrolytic tank and a second electrolytic tank, and the middle polar plate is provided with a pair of positive electrodes;
the first electrolytic cell and the second electrolytic cell are connected in parallel to form an electrolytic cell unit; and
the electrolytic cell units are connected in parallel and/or in series.
5. The modular electrolyzer group of claim 4,
the first electrolytic cell and the second electrolytic cell are both provided with a hydrogen outlet suitable for being connected with a hydrogen pipeline and an oxygen outlet suitable for being connected with an oxygen pipeline.
6. The modular cell bank of claims 2&4,
the tank body is provided with an electrolyte inlet suitable for being connected with an electrolyte conveying pipeline.
7. A modular cell block, comprising:
two electrolytic tanks; and
the two electrolytic tanks are connected in parallel or in series.
8. The modular electrolyzer group of claim 7,
the electrolytic cell is the electrolytic cell according to any one of claims 2 to 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020106267030 | 2020-07-01 | ||
| CN202010626703 | 2020-07-01 |
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| CN113445070A true CN113445070A (en) | 2021-09-28 |
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| CN202110670493.XA Pending CN113445070A (en) | 2020-07-01 | 2021-06-17 | Modularized electrolytic cell group |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115267299A (en) * | 2022-08-24 | 2022-11-01 | 海卓动力(北京)能源科技有限公司 | Online monitoring and overhauling device of filter-pressing type electrolytic cell |
| EP4279636A1 (en) * | 2022-05-18 | 2023-11-22 | Primetals Technologies Germany GmbH | Electrolysis device |
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|---|---|---|---|---|
| GB1522440A (en) * | 1975-12-09 | 1978-08-23 | Alsthom Atlantique | Low loss high voltage electrolyzer |
| CN102597326A (en) * | 2009-08-19 | 2012-07-18 | 下一氢公司 | Proton exchange membrane water electrolyser cell module design |
| US20130140171A1 (en) * | 2008-07-15 | 2013-06-06 | Next Hydrogen Corporation | Electrolyser module |
| CN204138781U (en) * | 2014-10-17 | 2015-02-04 | 北京中电丰业技术开发有限公司 | Complete isolated water electrolyzer |
| WO2019132684A1 (en) * | 2017-12-29 | 2019-07-04 | Mocevic Vojin | Modular device and procedure for producing reproducible quality hydrogen and oxygen gases |
| CN110106512A (en) * | 2019-04-17 | 2019-08-09 | 河北工业大学 | Device for preparing hydrogen |
-
2021
- 2021-06-17 CN CN202110670493.XA patent/CN113445070A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1522440A (en) * | 1975-12-09 | 1978-08-23 | Alsthom Atlantique | Low loss high voltage electrolyzer |
| US20130140171A1 (en) * | 2008-07-15 | 2013-06-06 | Next Hydrogen Corporation | Electrolyser module |
| CN102597326A (en) * | 2009-08-19 | 2012-07-18 | 下一氢公司 | Proton exchange membrane water electrolyser cell module design |
| CN204138781U (en) * | 2014-10-17 | 2015-02-04 | 北京中电丰业技术开发有限公司 | Complete isolated water electrolyzer |
| WO2019132684A1 (en) * | 2017-12-29 | 2019-07-04 | Mocevic Vojin | Modular device and procedure for producing reproducible quality hydrogen and oxygen gases |
| CN110106512A (en) * | 2019-04-17 | 2019-08-09 | 河北工业大学 | Device for preparing hydrogen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4279636A1 (en) * | 2022-05-18 | 2023-11-22 | Primetals Technologies Germany GmbH | Electrolysis device |
| CN115267299A (en) * | 2022-08-24 | 2022-11-01 | 海卓动力(北京)能源科技有限公司 | Online monitoring and overhauling device of filter-pressing type electrolytic cell |
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