CN113235110A - Novel water electrolysis hydrogen production electrolytic cell device - Google Patents
Novel water electrolysis hydrogen production electrolytic cell device Download PDFInfo
- Publication number
- CN113235110A CN113235110A CN202110692934.6A CN202110692934A CN113235110A CN 113235110 A CN113235110 A CN 113235110A CN 202110692934 A CN202110692934 A CN 202110692934A CN 113235110 A CN113235110 A CN 113235110A
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- Prior art keywords
- electrolysis
- electrolytic cell
- end pressing
- pressing plates
- water electrolysis
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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
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
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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 relates to the technical field of auxiliary devices of electrolytic cells, in particular to a novel electrolytic cell device for hydrogen production by water electrolysis, which has simple structure and convenient installation and reduces the production cost; the electrolytic cell comprises two end pressing plates and a plurality of electrolytic cells, wherein bipolar plates are arranged between the end pressing plates and the electrolytic cells and between adjacent electrolytic cells, the end pressing plates, the electrolytic cells and the bipolar plates are fixedly connected through studs, and nuts are connected on the studs in a threaded manner; the electrolysis cell comprises a pole frame and a membrane electrode, the pole frame comprises a first part and a second part, an oxygen flow channel and a hydrogen flow channel are arranged on the pole frame of the first part, the membrane electrode comprises a diaphragm and electrodes positioned on two sides of the diaphragm, grooves for installing O-shaped rings are formed in one side of the two end pressing plates, close to the electrolysis cell, in two surfaces of the first part and in two surfaces of the second part, the two grooves are provided with the O-shaped rings, the two grooves of the first part and the second part which are opposite are provided with the O-shaped rings, and the O-shaped rings are arranged in each groove of the other positions.
Description
Technical Field
The invention relates to the technical field of auxiliary devices of electrolytic cells, in particular to a novel electrolytic cell device for producing hydrogen by water electrolysis.
Background
The electrolytic cell consists of a cell body, an anode and a cathode, and an anode chamber and a cathode chamber are mostly separated by a diaphragm. The electrolytic bath is divided into three types, namely an aqueous solution electrolytic bath, a molten salt electrolytic bath and a non-aqueous solution electrolytic bath according to the difference of the electrolyte. When direct current passes through the electrolytic cell, an oxidation reaction occurs at the interface of the anode and the solution, and a reduction reaction occurs at the interface of the cathode and the solution, so as to prepare the required product. The optimized design of the electrolytic cell structure and the reasonable selection of the electrode and diaphragm materials are the keys of improving the current efficiency, reducing the cell voltage and saving the energy consumption.
The existing electrolytic cell device for hydrogen production by water electrolysis mainly carries out sealed installation of an electrolytic cell through a metal pole frame and a thick gasket, so that the size and the quality of the whole electrolytic cell are large, the production cost and the installation difficulty are increased, the complex structure also causes the maintenance in the later stage of the electrolytic cell and the replacement difficulty of parts to be increased, and on the last hand, the electrolytic cell is difficult to seal between small electrolytic cells.
Disclosure of Invention
In order to solve the technical problems, the invention provides a novel electrolytic cell device for producing hydrogen by water electrolysis, which has the advantages of simple structure, convenient installation and production cost reduction.
The novel electrolytic cell device for hydrogen production by water electrolysis comprises two end pressing plates and a plurality of small electrolysis chambers, wherein bipolar plates are arranged between the end pressing plates and the small electrolysis chambers and between adjacent small electrolysis chambers, the end pressing plates, the small electrolysis chambers and the bipolar plates are fixedly connected through studs, and nuts are connected with the studs in a threaded manner;
the electrolysis cell comprises a cell frame and a membrane electrode, the cell frame comprises a first part and a second part, an oxygen flow channel and a hydrogen flow channel are arranged on the first part of the cell frame, the membrane electrode comprises a diaphragm and electrodes positioned on two sides of the diaphragm, grooves for installing O-shaped rings are formed in one side of two end pressing plates close to the electrolysis cell, two sides of the first part and two sides of the second part, the two grooves opposite to the first part and the second part are provided with the O-shaped rings, each groove at the other positions is provided with the O-shaped ring, the first part is used for installing the electrode on one side and the diaphragm, four fixing pins for fixing the bipolar plate are arranged at the edge of the second part, and the second part is used for installing the other electrode.
Furthermore, through holes corresponding to the fixing pins one to one are formed in the bipolar plate, and notches are formed in the through holes.
Further, the pole frame is made of resin.
Further, each bipolar plate is provided with a lug, and the lugs are used for a stud to pass through.
Further, the O-shaped ring is made of rubber.
Furthermore, one end of each stud close to the nut is sleeved with a disc spring.
Compared with the prior art, the invention has the beneficial effects that: this device uses the resin utmost point frame and carries out the sealed of electrolysis trough for the O type circle of rubber material, has reduced the volume and the quality of whole electrolysis trough, has reduced manufacturing cost and the installation degree of difficulty, and it is more convenient that later stage overhauls simultaneously.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a front and back view of a first portion of a pole frame;
FIG. 3 is a front and back view of a second portion of the pole frame;
FIG. 4 is a block diagram of a separator and an electrode;
in the drawings, the reference numbers: 1. an O-shaped ring; 2. bolt holes; 3. a hydrogen gas flow channel; 4. an oxygen flow channel; 5. a fixing pin; 6. a bipolar plate; 7. a pole frame; 8. a diaphragm; 9. a trench; 10. an electrode; 11. end pressing plates 12 and studs; a liquid flow passage (13).
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the novel electrolytic cell device for hydrogen production by water electrolysis comprises two end pressing plates 11 and a plurality of small electrolysis chambers, wherein bipolar plates 6 are respectively arranged between the end pressing plates 11 and the small electrolysis chambers and between adjacent small electrolysis chambers, the end pressing plates 11, the small electrolysis chambers and the bipolar plates 6 are fixedly connected through studs 12, and nuts are connected to the studs 12 in a threaded manner;
the electrolytic cell comprises a pole frame 7 and a membrane electrode 10, wherein the pole frame 7 comprises a first part and a second part, an oxygen flow channel 4 and a hydrogen flow channel 3 are arranged on the first part of the pole frame 7, the membrane electrode 10 comprises a diaphragm 8 and electrodes 10 positioned on two sides of the diaphragm 8, two end pressing plates 11 are close to one side of the electrolytic cell, grooves 9 used for mounting O-shaped rings 1 are respectively formed in two surfaces of the first part and two surfaces of the second part, the two grooves 9 of the first part, which are opposite to the second part, are provided with the O-shaped rings 1, the O-shaped rings 1 are respectively mounted in each groove 9 of the rest positions, the first part is used for mounting the one-side electrode 10 and the diaphragm 8, the edge of the second part is provided with four fixing pins 5 used for fixing the bipolar plate 6, and the second part is used for mounting the other electrode 10.
In this embodiment, the electrolytic cells are sequentially mounted from one side of the end pressing plate 11, the first portion of the polar frame 7 is mounted, the electrode 10 and the diaphragm 8 are tightly attached to each other, the O-ring 1 is embedded into the groove 9 of the first portion, the second portion is compressed to fix the membrane electrode 10 in the first portion and the second portion, after the second portion is mounted, the bipolar plate 6 is aligned and covered, the other end pressing plate 11 is mounted, and the nut on the stud 12 is screwed to fix the bipolar plate, so that the traditional expensive and heavy metal polar frame 7 is omitted, and instead, the thin metal bipolar plate 6 is fixed on the polar frame 7 through the fixing pin 5 on the polar frame 7.
As a preferable mode of the above embodiment, as shown in fig. 3, through holes corresponding to the fixing pins 5 one by one are formed in the bipolar plate 6, and notches are formed in the through holes.
In this embodiment, the bipolar plate 6 is mounted by aligning the through-holes with the fixing pins 5 and then pressing and rotating the bipolar plate 6 to be fixed to the second portion of the frame 7, thereby facilitating the mounting.
In a preferred embodiment of the above embodiment, the pole frame 7 is made of a resin material.
In this embodiment, the pole frame 7 is made of a resin material and is lighter.
As a preferable solution of the above embodiment, as shown in fig. 1, a lug is provided on each bipolar plate 6, and the lug is used for the stud 12 to pass through.
In the present embodiment, the studs 12 are inserted through the lugs, thereby further preventing the bipolar plate 6 from being dislocated.
In a preferred embodiment of the above embodiment, the O-ring 1 is made of rubber.
In this embodiment, the O-ring 1 is made of rubber, and has a better sealing property.
As a preferable solution of the above embodiment, a disc spring (not shown) is sleeved on one end of each stud 12 near the nut.
In this embodiment, the nut is prevented from being disengaged from the stud 12 by providing a disc spring.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A novel electrolytic tank device for hydrogen production by water electrolysis is characterized by comprising two end pressing plates (11) and a plurality of small electrolysis chambers, wherein bipolar plates (6) are respectively arranged between the end pressing plates (11) and the small electrolysis chambers and between adjacent small electrolysis chambers, the end pressing plates (11), a liquid flow passage (13), the small electrolysis chambers and the bipolar plates (6) are fixedly connected through studs (12), and nuts are connected with the studs (12) in a threaded manner;
the electrolysis cell comprises a pole frame (7) and a membrane electrode (10), the pole frame (7) comprises a first part and a second part, an oxygen flow channel (4) and a hydrogen flow channel (3) are arranged on the first part of the pole frame (7), the membrane electrode (10) comprises a diaphragm (8) and electrodes (10) positioned on two sides of the diaphragm (8), grooves (9) used for installing O-shaped rings (1) are respectively formed on two surfaces of the first part and two surfaces of the second part of two end pressing plates (11) close to one side of the electrolysis cell, the two surfaces of the first part are provided with the O-shaped rings (1), the two grooves (9) of the first part and the second part which are opposite are provided with the O-shaped rings (1), each groove (9) of the other positions is provided with one O-shaped ring (1), the first part is used for installing one side electrode (10) and the diaphragm (8), and the edge of the second part is provided with four fixing pins (5) used for fixing the bipolar plate (6), the second part is used for mounting another electrode (10).
2. A novel electrolytic tank device for hydrogen production by water electrolysis as claimed in claim 1, characterized in that the bipolar plate (6) is provided with through holes corresponding to the fixing pins (5) one by one, and the through holes are provided with notches.
3. A novel electrolytic cell device for the production of hydrogen by water electrolysis as claimed in claim 2, wherein the pole frame (7) is made of resin.
4. A novel electrolytic cell device for the production of hydrogen by water electrolysis as claimed in claim 3, characterized in that each bipolar plate (6) is provided with a lifting lug for the stud (12) to pass through.
5. A novel electrolytic cell device for producing hydrogen by water electrolysis as claimed in claim 4, wherein the O-ring (1) is made of rubber.
6. A novel electrolytic cell device for producing hydrogen by water electrolysis as claimed in claim 5, wherein one end of each stud (12) near the nut is sleeved with a disc spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110692934.6A CN113235110A (en) | 2021-06-22 | 2021-06-22 | Novel water electrolysis hydrogen production electrolytic cell device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110692934.6A CN113235110A (en) | 2021-06-22 | 2021-06-22 | Novel water electrolysis hydrogen production electrolytic cell device |
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| Publication Number | Publication Date |
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| CN113235110A true CN113235110A (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110692934.6A Pending CN113235110A (en) | 2021-06-22 | 2021-06-22 | Novel water electrolysis hydrogen production electrolytic cell device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802136A (en) * | 2021-09-29 | 2021-12-17 | 中国华能集团清洁能源技术研究院有限公司 | Electrolytic cell system and working method thereof |
| CN114232004A (en) * | 2021-11-01 | 2022-03-25 | 山东海氢能源科技有限公司 | Water electrolysis cell with integrated electrolysis cells |
| CN114381752A (en) * | 2022-03-01 | 2022-04-22 | 北京中电绿波科技有限公司 | Electrolytic cell with high-efficiency turbulent flow multi-connecting-hole turbulent flow element |
| CN116288453A (en) * | 2023-03-14 | 2023-06-23 | 山东汉德自动化控制设备有限公司 | Bipolar filter-pressing type water electrolysis tank for producing hydrogen by strong alkalinity |
| CN116497382A (en) * | 2023-06-30 | 2023-07-28 | 中石油深圳新能源研究院有限公司 | Bipolar plate, electrolytic cell and electrolytic cell |
-
2021
- 2021-06-22 CN CN202110692934.6A patent/CN113235110A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802136A (en) * | 2021-09-29 | 2021-12-17 | 中国华能集团清洁能源技术研究院有限公司 | Electrolytic cell system and working method thereof |
| WO2023050681A1 (en) * | 2021-09-29 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Electrolytic bath system and working method therefor |
| CN113802136B (en) * | 2021-09-29 | 2023-10-20 | 中国华能集团清洁能源技术研究院有限公司 | Electrolytic tank system and working method thereof |
| CN114232004A (en) * | 2021-11-01 | 2022-03-25 | 山东海氢能源科技有限公司 | Water electrolysis cell with integrated electrolysis cells |
| CN114381752A (en) * | 2022-03-01 | 2022-04-22 | 北京中电绿波科技有限公司 | Electrolytic cell with high-efficiency turbulent flow multi-connecting-hole turbulent flow element |
| CN116288453A (en) * | 2023-03-14 | 2023-06-23 | 山东汉德自动化控制设备有限公司 | Bipolar filter-pressing type water electrolysis tank for producing hydrogen by strong alkalinity |
| CN116288453B (en) * | 2023-03-14 | 2023-11-03 | 山东汉德自动化控制设备有限公司 | Bipolar filter-pressing type water electrolysis tank for producing hydrogen by strong alkalinity |
| CN116497382A (en) * | 2023-06-30 | 2023-07-28 | 中石油深圳新能源研究院有限公司 | Bipolar plate, electrolytic cell and electrolytic cell |
| CN116497382B (en) * | 2023-06-30 | 2023-09-19 | 中石油深圳新能源研究院有限公司 | Bipolar plate, electrolytic cell and electrolytic cell |
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