CN115261905A - High-pressure type water electrolysis hydrogen production device - Google Patents
High-pressure type water electrolysis hydrogen production device Download PDFInfo
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- CN115261905A CN115261905A CN202211064377.4A CN202211064377A CN115261905A CN 115261905 A CN115261905 A CN 115261905A CN 202211064377 A CN202211064377 A CN 202211064377A CN 115261905 A CN115261905 A CN 115261905A
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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
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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
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
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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 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 discloses a high-pressure type water electrolysis hydrogen production device, which comprises a pressing device and an electrolytic cell, wherein the pressing device applies sealing pressure to two ends of the electrolytic cell; the electrode plate assemblies are sequentially superposed in the pressing device, a lip-shaped sealing ring and a limiting ring are concentrically arranged between every two adjacent electrode plate assemblies, the limiting ring is sleeved on the outer side of the lip-shaped sealing ring, the two adjacent electrode plate assemblies are arranged on two sides of the limiting ring at intervals and are insulated, and the inner annular wall of the limiting ring is used for annularly restraining the lip-shaped sealing ring; the water pressure, the pressure and the air tightness of the electrolytic cell can reach 10MPa or above, the safety pressure of the air tightness test can reach 8MPa or above, the sealing principle of the electrolytic cell is changed, the sealing problem of the manufacturing of ultra-large electrolytic cell equipment is solved, the deflection deformation problem of the electrolytic cell equipment above medium-large scale in the using process is solved, and the market demand on high-pressure type, particularly high-pressure medium-large scale water electrolysis hydrogen production equipment is met.
Description
Technical Field
The invention relates to the field of water electrolysis hydrogen production equipment, in particular to a high-pressure water electrolysis hydrogen production device in the field of alkaline water electrolysis hydrogen production electrolytic bath equipment.
Background
The hydrogen production by water electrolysis is one of a plurality of hydrogen production routes, the hydrogen production by alkaline water electrolysis is a mainstream process of a hydrogen production by water electrolysis, and with the implementation of double carbon targets in China and the release and implementation of long-term planning in the hydrogen energy industry, the hydrogen production by water electrolysis, particularly the hydrogen production by alkaline water electrolysis, will occupy important positions in the market in a rather long time in the future, and an electrolytic cell is the most core part of hydrogen production equipment by water electrolysis no matter considering the cost or the operation.
The technical level and the equipment scale of the alkaline pressure type water electrolysis hydrogen production equipment in China are ahead of the world, the operating pressure of common medium and large-sized equipment is not more than 1.6Mpa, and the equipment cannot operate under higher pressure; foreign equipment mostly runs in a normal pressure state, the two development routes are adopted, the pressure required by hydrogen in the transportation process and the use terminal is often higher, the general requirement is about more than 4MPa, the gas supply pressure of a hydrogen production end needs to be increased through a compressor in the process, and therefore the equipment investment and the energy consumption are increased.
The sealing is the most important problem faced by electrolytic cell equipment for hydrogen production by water electrolysis, and particularly, whether a sealing system can stably operate for a long time is the premise for determining whether the electrolytic cell can normally and stably operate. At present and for a long time the sealed modified plastic seal gasket form of all adopting the combination of plane seal structure to seal up of alkaline water electrolysis hydrogen manufacturing electrolysis trough equipment in the trade, water electrolysis hydrogen manufacturing electrolysis trough filter-pressing formula structural feature causes the electrolysis trough to have hundreds of seals of hundreds of cell, and a sealing fault all can lead to whole platform equipment to shut down, and the water electrolysis hydrogen manufacturing equipment operation security of direct influence also is the obstacle that influences water electrolysis hydrogen manufacturing electrolysis trough equipment and more enlarges the development.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a high-pressure type water electrolysis hydrogen production device, which breaks through the upper limit problem of the sealing capacity of the existing medium-large electrolytic tank equipment, overcomes the difficulty of sealing of ultra-large electrolytic equipment and realizes the stable operation of the electrolysis hydrogen production device under high pressure.
The invention is realized by the following technical scheme:
a high-pressure type water electrolysis hydrogen production device comprises a pressing device and an electrolytic cell, wherein the pressing device applies sealing pressure to two ends of the electrolytic cell;
the electrolytic bath comprises a plurality of polar plate assemblies, electrolytic cavities are arranged on two sides of the polar plate assemblies, the polar plate assemblies are sequentially overlapped in a pressing device, and a concentric lip-shaped sealing ring and a limiting ring are pressed between every two adjacent polar plate assemblies;
the lip-shaped sealing ring and the limiting ring are sequentially sleeved on the outer side of the electrolytic cavity from inside to outside, the inner ring wall of the limiting ring is used for annularly constraining the lip-shaped sealing ring, the limiting rings are coaxially arranged, two adjacent polar plate assemblies are arranged on two sides of the limiting ring at intervals and are insulated, diaphragm cloth is arranged between two adjacent electrolytic cavities of the two adjacent polar plate assemblies, and the edge of the diaphragm cloth is pressed between the two polar plate assemblies.
Preferably, the plate assembly comprises a plate frame, a flat plate, an anode and cathode auxiliary electrode net, a cathode and auxiliary electrode net and a support net;
the flat polar plate is assembled in an inner hole of the polar plate frame, the edge of the flat polar plate is connected with the hole wall of the polar plate frame, the anode auxiliary polar net and the cathode auxiliary polar net are arranged on two sides of the polar plate frame and fixedly connected, the supporting nets are arranged on two sides of the flat polar plate and used for supporting and positioning the anode auxiliary polar net and the cathode auxiliary polar net.
Preferably, both sides of the polar plate frame are provided with medium channels for enabling working media in the electrolysis cavity to enter the lip cavity of the lip-shaped sealing ring.
Preferably, the medium channel is provided with a channel pressing sheet.
Preferably, two sides of the pole plate assembly are respectively provided with a sealing groove for mounting a lip-shaped sealing ring; and one side of the pole plate assembly is provided with a limiting groove for mounting a limiting ring.
Preferably, the lip-shaped sealing ring comprises a sealing body which is sealed in the circumferential direction, the outer wall and the inner wall of the sealing body are respectively provided with an outer lip edge and an inner lip edge which are annular, a sealing lip cavity is arranged on the inner wall of the sealing body, and the two sealing lip cavities are symmetrically arranged on two sides of the inner lip edge.
Preferably, the sealing body is arranged in the sealing grooves of the two adjacent polar plate frames, the outer lip edge and the inner lip edge are pressed between the two adjacent polar plate frames, and the outer wall of the outer lip edge is abutted against the inner wall of the limiting ring.
Preferably, a ripple compensation joint is arranged on the inner lip.
Preferably, the corrugated compensation joint 21 is of an annular structure, and the cross section of the corrugated compensation joint is of a circular arc structure with equal thickness.
Preferably, the limiting ring is made of hard insulating materials.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the high-pressure type water electrolysis hydrogen production device provided by the invention, the lip-shaped sealing rings and the limiting rings are arranged between two adjacent polar plate assemblies, the two polar plate assemblies are isolated through the limiting rings to play an insulating role, and then the limiting rings can control the compression amount of the two polar plate assemblies on the lip-shaped sealing rings and ensure that the compression amount of each lip-shaped sealing ring is the same, so that the sealing failure of the lip-shaped sealing rings caused by overlarge compression force is avoided.
Furthermore, the lip-shaped sealing ring is used as a main sealing element of the hydrogen production device, is positioned between the two pole plate assemblies and plays an insulating role in the adjacent two pole plate assemblies so as to avoid the short circuit of the two pole plate assemblies which are in contact with each other; secondly, the lip-shaped sealing ring can avoid the medium leakage of the electrolysis chamber and ensure the integral sealing performance of the electrolysis.
Drawings
FIG. 1 is a schematic diagram of a high pressure type hydrogen production apparatus by water electrolysis according to the present invention;
FIG. 2 is a sealing structure diagram of the high-pressure type hydrogen production apparatus by water electrolysis of the present invention;
FIG. 3 is an end view of a pole plate assembly of the present invention;
FIG. 4 is a schematic view of a construction of a pole plate assembly of the present invention;
fig. 5 is a schematic structural view of the lip seal of the present invention.
In the figure: a pull rod 1; a nut 2; a spacer 3; an insulating spacer 4; a left end plate 5; a left end polar plate assembly 6; an insulating tube 7; a right end plate 8; a right end pole plate assembly 9; a lip seal 10; a diaphragm cloth 11; a pole plate assembly 12; a stop collar 13; a plate frame 14; an anode-side grid 15; a support net 16; a flat plate 17; a cathode auxiliary grid 18; a channel presser 19; an outer lip 20; a ripple compensation joint 21; a lip cavity 22; an inner lip 23; the seal body 24; a seal groove 25; a retaining groove 26.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
Referring to fig. 1-5, a high-pressure type hydrogen production device by water electrolysis comprises a pressing device and an electrolytic cell arranged in the pressing device, wherein the pressing device is used for applying sealing pressure to the electrolytic cell.
The electrolytic bath comprises an electrode plate assembly 12, a lip-shaped sealing ring 10 and a limiting ring 13; the both sides of polar plate subassembly all are provided with coaxial electrolysis chamber, a plurality of polar plate subassembly 12 superposes in proper order and pressure equipment is in closing device, set up concentric lip seal 10 and spacing ring 13 between two adjacent polar plate subassemblies, and two adjacent polar plate subassemblies non-contact are connected and are insulating, spacing ring 13 cover establish with lip seal 10's outside, the space that lip seal 10 and two adjacent electrolysis chambeies of two adjacent polar plate subassemblies 12 enclose forms the electrolysis room, be provided with the diaphragm cloth in the electrolysis room, be used for keeping apart two electrolysis chambers, under sealed state, the interior rampart of spacing ring 13 is used for restricting lip seal 10 hoop.
The polar plate assembly 12 comprises a polar plate frame 14, a flat polar plate 17, a support net 16, an anode auxiliary polar net 15, a cathode auxiliary polar net 18 and a channel pressing sheet 19; the polar plate frame 14 is provided with a circular ring with a certain thickness, the flat polar plate 17 is assembled in an inner hole of the polar plate frame 14 and is positioned at the axial center of the circular ring, the edge of the flat polar plate 17 is connected with the hole wall of the polar plate frame 14, the anode auxiliary polar net 15 and the cathode auxiliary polar net 18 are arranged on two sides of the polar plate frame 14, the edges of the anode auxiliary polar net 15 and the cathode auxiliary polar net 18 are fixedly connected with two ends of the polar plate frame 14, the two sides of the flat polar plate 17 are both provided with supporting nets 16, the supporting nets 16 are used for supporting and positioning the anode auxiliary polar net 15 and the cathode auxiliary polar net 18, and two electrolysis cavities are formed between the anode auxiliary polar net 15 and the cathode auxiliary polar net 18 and the flat polar plate 17 respectively; the connection parts of the polar plate frame 14, the flat polar plate 17, the support net 16, the anode auxiliary polar net 15 and the cathode auxiliary polar net 18 are mutually welded to form the polar plate assembly 12, so that the contact resistance between parts can be reduced, the number of the parts mounted on the electrolytic cell can be reduced, and the assembly convenience is improved.
Seal grooves 25 for mounting the lip-shaped seal ring 10 are formed in two end faces of the plate frame 14, a limiting groove 26 for mounting the limiting ring 13 is formed in one side face of the plate frame, the diameter of the limiting groove 26 is larger than that of the seal groove, the limiting groove 26 is located on one side of the cathode auxiliary electrode net 18 or the anode auxiliary electrode net 15, medium channels for allowing electrolysis regional media to freely enter into seal lip cavities of the lip-shaped seal ring 10 are formed in two side faces of the plate frame 14, one end of each medium channel is communicated with the electrolysis cavity, and the other end of each medium channel is communicated with the seal groove 25.
The lip-shaped sealing ring 10 comprises a sealed body which is sealed in a circumferential direction, the outer wall and the inner wall of the sealed body are respectively provided with an outer lip edge 20 and an inner lip edge 23 which are annular and are located on the same radial plane, one side, close to an electrolytic chamber, of the sealed body is provided with a sealing lip cavity 22, the two sealing lip cavities 22 are symmetrically arranged on two sides of the inner lip edge 23, and the opening position of the sealing lip cavity 22 is in smooth transition with the contact position of the inner lip edge 23.
The seal is located the seal groove 25 of two adjacent utmost point plate frames 14, outer lip 20 and interior lip 23 press from both sides in two adjacent utmost point plate frames 14, and the edge of outer lip 20 and the interior rampart butt of spacing ring, the open end in seal lip chamber 22 passes through medium channel and electrolysis chamber intercommunication, medium channel is located one side of interior lip 23, get into in seal lip chamber 22 when electrolyte under pressure, lip chamber 22 warp the inflation under the pressure of electrolyte, make the volume grow of whole seal, the seal is under the restraint of utmost point plate subassembly in both sides, can effectively increase the sealing pressure of seal and utmost point plate subassembly, and then improve sealing performance.
The inner lip edge 23 is provided with a corrugated compensation joint 21, the corrugated compensation joint 21 is positioned on the inner lip edge 23 at one side close to the lip cavity 22 and is used for increasing the compression deformation of the inner lip edge in a sealing state, and the compensation structure can ensure that the inner lip edge cannot be torn due to internal and external compression and pulling in a working stress state of the lip-shaped sealing ring. Ripple compensation festival 21 is the loop configuration, its cross-section is the circular arc structure of uniform thickness, and set up with the seal is concentric, ripple compensation festival 21 forms annular bulge structure in one side of lip limit 23 including, the other side of lip limit 23 forms annular groove structure including, lip limit pressurized deformation in under operating condition, ripple compensation festival 21 pressurized extends and alleviates the interior external compression of lip limit and causes and pull the deformation, avoid the interior lip limit to cause and tear and damage, improve the life of whole lip seal.
The lip-shaped sealing ring 10 is a sealing element of the high-pressure water electrolysis hydrogen production device and is made of rubber, plastics or modified products thereof, the lip-shaped sealing ring 10 is positioned between two polar plate assemblies and plays an insulating role for the two adjacent polar plate assemblies so as to avoid short circuit of the two polar plate assemblies 12 which are in contact with each other; secondly, the lip-shaped sealing ring 10 provides inner sealing and outer sealing for the electrolytic chamber, the inner sealing is used for sealing hydrogen and oxygen generated by the electrolytic chamber and preventing gas from being mixed with each other, the outer sealing is used for sealing the electrolytic cell and the electrolytic chamber and preventing leakage, and the integral sealing performance of electrolysis is ensured, the lip-shaped sealing ring 10 mainly comprises lip-shaped chambers at two sides, an inner lip and an outer lip, wherein the lip-shaped chambers at two sides are used for outer sealing, the inner lip is used for inner sealing, and the outer lip is used for poking and adjusting in the installation process of the lip-shaped sealing ring 10, so that the correct installation posture of the lip-shaped sealing ring 10 is ensured.
The limiting ring 13 is made of an insulating hard material, the material performance of the material can not be changed in the operating condition of about 100 ℃, the material is epoxy resin or ceramic, the thickness of the limiting ring 13 is larger than the depth of the limiting groove 26, the end face of the limiting ring 13 protrudes out of the end face of the polar plate frame 14, two adjacent polar plate frames 14 keep a certain gap, and meanwhile, the limiting ring 13 separates two adjacent polar plate assemblies 12 to play an insulating role. Secondly, the compression amount of the lip-shaped sealing ring 10 before the two polar plate assemblies is controlled, the compression deformation amount of all the lip-shaped sealing rings 10 is ensured to be the same, and the lip-shaped sealing ring 10 is restrained from being extruded outwards under the internal pressure in the working state; in addition, the limiting ring 13 is made of hard materials, so that ultra-large pretightening force can be provided for two adjacent polar plate assemblies, the sealing performance cannot be influenced, excessive compression failure of the lip-shaped sealing ring 10 cannot be caused due to excessive compression force, the limiting ring 13 can provide supporting force when the electrolytic cell is fastened, the integral installation rigidity of the electrolytic cell is greatly enhanced, and the deflection phenomenon is avoided during the installation and long-term use of the electrolytic cell.
Referring to fig. 1 again, the pressing device comprises a pull rod and end plates, the plurality of pole plate assemblies are stacked to form an electrolytic cell, two adjacent pole plate assemblies are provided with diaphragm cloth 11 for separating hydrogen and oxygen generated on the two sides of the cathode and the anode of the electrolytic cell, the purity of hydrogen and oxygen substances is guaranteed, the two ends of the electrolytic cell are respectively provided with a left end pole plate assembly 6 and a right end pole plate assembly 9, the outer sides of the left end pole plate assembly 6 and the right end pole plate assembly 9 are respectively provided with a left end plate 5 and a right end plate 8, the left end plate 5 and the right end plate 8 are connected through the plurality of pull rods 1, gaskets and insulating gaskets are sleeved at the two ends of the pull rods, pressure is applied to the left end plate 5 and the right end plate 8 through nuts 2, and the left end plate 5 and the right end plate 8 clamp the electrolytic cell.
The left end polar plate assembly 6 and the right end polar plate assembly 9 are identical in structure, and compared with the polar plate assembly 12, the left end polar plate assembly 6 and the right end polar plate assembly 9 are thick in plate thickness, two side faces of a workpiece are welded with a flat polar plate 17, the flat polar plate 17 and the left end polar plate assembly 6 or the right end polar plate assembly 9 form an internal cavity, the cavity mainly plays a role in buffering electrolyte in an electrolytic cell, and the use stability of the electrolytic cell is improved. The left end plate 5 and the right end plate 8 are used for clamping the whole electrolytic tank, and the left end plate 5 or the right end plate 8 is provided with an interface for electrolyte and generated gas and is in butt joint with the boundary. Whole electrolysis trough exerts fastening force through auxiliaries such as pull rod 1, nut 2, compares with conventional electrolysis trough, and the electrolysis trough both ends need not to set up the dish spring, need not to carry out expend with heat and contract with cold compensation and can ensure cell body sealing performance.
The high-pressure water electrolysis hydrogen production device disclosed by the invention is used for carrying out experimental pressure measurement, the water pressure strength pressure of the electrolytic cell can reach 10MPa or above, the safety pressure of the air pressure airtightness test can reach 8MPa or above, the sealing pressure of the electrolytic cell is far greater than the sealing operation pressure of the electrolytic cell with a conventional structure in the market, in addition, a higher-level pressure test is not carried out on the basis of safety consideration, and sealing can be kept under higher pressure according to the current pressure measurement result; in addition, the sealing gasket of the sealing system of the conventional electrolytic cell for hydrogen production by water electrolysis is disposable, the electrolytic cell cannot be used after being disassembled and assembled, and the maintenance cost is too high, and the sealing elements such as the lip-shaped sealing ring and the limiting ring can be used repeatedly, so that the maintenance cost of the electrolytic cell equipment can be greatly reduced. In addition, the limiting ring is made of an insulating hard material, so that the sealing gasket is not excessively compressed due to excessive pressure when the electrolytic cell is pre-tightened, the pre-tightening force of the electrolytic cell can be relatively infinite, the overall rigidity of the electrolytic cell is good, the problem of deflection in the long-term use process of the conventional fluoroplastic sealing type electrolytic cell is solved, and the design of a short plate of a large-scale ultra-large electrolytic cell is broken through.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A high-pressure type water electrolysis hydrogen production device is characterized by comprising a pressing device and an electrolytic cell, wherein the pressing device is used for applying sealing pressure to two ends of the electrolytic cell;
the electrolytic bath comprises a plurality of polar plate assemblies, electrolytic cavities are arranged on two sides of the polar plate assemblies, the polar plate assemblies are sequentially overlapped in a pressing device, and a concentric lip-shaped sealing ring and a limiting ring are pressed between every two adjacent polar plate assemblies;
the lip-shaped sealing ring and the limiting ring are sequentially sleeved on the outer side of the electrolytic cavity from inside to outside, the inner ring wall of the limiting ring is used for annularly constraining the lip-shaped sealing ring, the limiting rings are coaxially arranged, two adjacent polar plate assemblies are arranged on two sides of the limiting ring at intervals and are insulated, diaphragm cloth is arranged between two adjacent electrolytic cavities of the two adjacent polar plate assemblies, and the edge of the diaphragm cloth is pressed between the two polar plate assemblies.
2. The high-pressure type water electrolysis hydrogen production device according to claim 1, wherein the polar plate assembly comprises a polar plate frame, a flat polar plate, an anode auxiliary polar net, a cathode auxiliary polar net and a support net;
the flat polar plate is assembled in an inner hole of the polar plate frame, the edge of the flat polar plate is connected with the hole wall of the polar plate frame, the anode auxiliary polar net and the cathode auxiliary polar net are arranged on two sides of the polar plate frame and fixedly connected, the supporting nets are arranged on two sides of the flat polar plate and used for supporting and positioning the anode auxiliary polar net and the cathode auxiliary polar net.
3. The high-pressure type water electrolysis hydrogen production device according to claim 2, wherein the two sides of the polar plate frame are provided with medium channels for enabling working media in the electrolysis cavity to enter the lip cavity of the lip-shaped sealing ring.
4. The apparatus as claimed in claim 3, wherein the medium passage is provided with a passage pressing piece.
5. The high-pressure type hydrogen production device by water electrolysis as claimed in claim 1, wherein, two sides of the pole plate assembly are respectively provided with a sealing groove for installing a lip-shaped sealing ring; and one side of the pole plate assembly is provided with a limiting groove for mounting a limiting ring.
6. The high-pressure type water electrolysis hydrogen production device according to claim 5, wherein the lip-shaped sealing ring comprises an annularly closed sealing body, the outer wall and the inner wall of the sealing body are respectively provided with an annular outer lip edge and an annular inner lip edge, the inner wall of the sealing body is provided with two sealing lip cavities, and the two sealing lip cavities are symmetrically arranged on two sides of the inner lip edge.
7. The high-pressure type water electrolysis hydrogen production device according to claim 6, wherein the sealing body is arranged in the sealing grooves of two adjacent polar plate frames, the outer lip edge and the inner lip edge are pressed between the two adjacent polar plate frames, and the outer wall of the outer lip edge is abutted against the inner wall of the limiting ring.
8. The apparatus of claim 7, wherein the inner lip is provided with a corrugated compensation joint.
9. The apparatus as claimed in claim 8, wherein the corrugated compensation joint 21 has an annular structure with a circular arc structure with a cross section of equal thickness.
10. The device for producing hydrogen by electrolysis of water under high pressure as claimed in claim 1, wherein the spacing ring is made of hard insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211064377.4A CN115261905A (en) | 2022-08-31 | 2022-08-31 | High-pressure type water electrolysis hydrogen production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211064377.4A CN115261905A (en) | 2022-08-31 | 2022-08-31 | High-pressure type water electrolysis hydrogen production device |
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| Publication Number | Publication Date |
|---|---|
| CN115261905A true CN115261905A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211064377.4A Pending CN115261905A (en) | 2022-08-31 | 2022-08-31 | High-pressure type water electrolysis hydrogen production device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114875436A (en) * | 2022-04-29 | 2022-08-09 | 广东卡沃罗氢科技有限公司 | Jackscrew back pressure formula PEM electrolysis trough device |
| CN115821288A (en) * | 2022-11-24 | 2023-03-21 | 上海氢晨新能源科技有限公司 | Water electrolysis hydrogen production unit with sealing ring hoop structure |
| CN116377501A (en) * | 2023-04-10 | 2023-07-04 | 陕西华秦新能源科技有限责任公司 | Electrocatalytic hydrogen evolution material and preparation method and application thereof |
| CN117735678A (en) * | 2024-02-18 | 2024-03-22 | 成都思达能环保设备有限公司 | Water treatment method and electrolysis device |
-
2022
- 2022-08-31 CN CN202211064377.4A patent/CN115261905A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114875436A (en) * | 2022-04-29 | 2022-08-09 | 广东卡沃罗氢科技有限公司 | Jackscrew back pressure formula PEM electrolysis trough device |
| CN115821288A (en) * | 2022-11-24 | 2023-03-21 | 上海氢晨新能源科技有限公司 | Water electrolysis hydrogen production unit with sealing ring hoop structure |
| CN116377501A (en) * | 2023-04-10 | 2023-07-04 | 陕西华秦新能源科技有限责任公司 | Electrocatalytic hydrogen evolution material and preparation method and application thereof |
| CN116377501B (en) * | 2023-04-10 | 2024-01-02 | 陕西华秦新能源科技有限责任公司 | Electrocatalytic hydrogen evolution material and preparation method and application thereof |
| CN117735678A (en) * | 2024-02-18 | 2024-03-22 | 成都思达能环保设备有限公司 | Water treatment method and electrolysis device |
| CN117735678B (en) * | 2024-02-18 | 2024-05-31 | 成都思达能环保设备有限公司 | Water treatment method and electrolysis device |
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