CN114622233B - Electrolytic bath for producing hydrogen by PEM water electrolysis and method for producing hydrogen by water electrolysis - Google Patents
Electrolytic bath for producing hydrogen by PEM water electrolysis and method for producing hydrogen by water electrolysis Download PDFInfo
- Publication number
- CN114622233B CN114622233B CN202210103945.0A CN202210103945A CN114622233B CN 114622233 B CN114622233 B CN 114622233B CN 202210103945 A CN202210103945 A CN 202210103945A CN 114622233 B CN114622233 B CN 114622233B
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- electrolytic
- hydrogen production
- water electrolysis
- hydrogen
- electrolytic tank
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000001257 hydrogen Substances 0.000 title claims abstract description 77
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 42
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 40
- 210000004027 cell Anatomy 0.000 claims abstract description 56
- 239000000178 monomer Substances 0.000 claims abstract description 41
- 210000005056 cell body Anatomy 0.000 claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 34
- 239000001301 oxygen Substances 0.000 claims description 34
- 229910052760 oxygen Inorganic materials 0.000 claims description 34
- 239000012528 membrane Substances 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
Classifications
-
- 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
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
- C25B9/77—Assemblies comprising two or more cells of the filter-press type having diaphragms
-
- 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
-
- 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
-
- 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
Landscapes
- 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 utility model discloses a PEM water electrolysis hydrogen production electrolytic tank and a water electrolysis hydrogen production method. The PEM water electrolysis hydrogen production electrolytic tank comprises electrolytic tank monomers and tank bodies used for integrally installing a plurality of electrolytic tank monomers in a parallel mode. According to the PEM water electrolysis hydrogen production electrolytic tank, the electrolytic tank monomers are integrally arranged in the tank body in a parallel connection mode, the circuits, the waterways and the gas paths for connecting the electrolytic tank monomers are all in a parallel connection mode, the electrolytic tank monomers do not interfere with each other, one electrolytic tank monomer is required to be maintained or replaced when being failed, and the integral operation is not influenced. In addition, the cell body adopts a modularized assembly structure, so that the electrolytic cell monomer is convenient to install on the cell body, high in integration level, small in size and wide in application scene; the hydrogen production specification can be regulated and controlled through superposition or reduction of the electrolytic cell monomers so as to adapt to hydrogen production requirements of different scenes; the electrolysis Chi Shanti is easy to disassemble and assemble and is more convenient to maintain than the conventional electrolytic tank.
Description
Technical Field
The utility model relates to the technical field of water electrolysis hydrogen production, in particular to a PEM water electrolysis hydrogen production electrolytic tank and a water electrolysis hydrogen production method.
Background
Proton Exchange Membrane (PEM) water electrolysis hydrogen production is one of mature hydrogen production technologies, and the prepared hydrogen has high purity (more than 99.99 percent), is convenient to convey, and can be directly used for fuel, carrier gas, reducing or protecting gas and cooling medium. At present, the PEM water electrolysis hydrogen production technology is not mature, and the problems of single combination mode, overlarge process loss, high manufacturing cost and the like exist.
The core technology of PEM water electrolysis hydrogen production is the manufacture of an electrolytic cell, and the material and combination modes are very key. The traditional electrolytic tank is mainly assembled by adopting an armoring-free structure, is integrated integrally in a bipolar mode, namely a plurality of bipolar plates, current collectors, membrane electrodes and the like are sequentially overlapped in two end plates, and then is integrally fixed by a screw.
For example, the utility model with the authority of CN212025475U discloses a movable hydrogen production and hydrogenation device by means of water electrolysis, wherein a proton exchange membrane electrolytic cell adopts the structure.
Another example of the utility model application publication No. CN113684492a discloses a plate-and-frame stackable electrolytic hydrogen production PEM electrolyzer comprising a plurality of electrolyzer cells, bipolar plates disposed between adjacent electrolyzer cells and a fixture; the electrolytic tank comprises two plate frames with insulating properties and a single membrane electrode, and the plate frames are closely attached to two sides of the membrane electrode; the plate frame is provided with a through groove which is used for forming an anode chamber and a cathode chamber, and electrode materials electrically connected with the membrane electrode and the bipolar plate are arranged in the through groove; a plurality of electrolytic cells and bipolar plates are arranged in a staggered manner to form an electrolytic cell string; the plate frame, the bipolar plate and the membrane electrode are respectively provided with a positive opposite oxygen hole, a positive opposite water inlet hole and a positive opposite hydrogen hole so as to respectively form an oxygen channel, a water inlet channel and a hydrogen channel in the electrolytic cell string, and the oxygen channel and the water inlet channel are communicated with the anode chamber; the hydrogen channel is communicated with the cathode chamber; the fixing device is used for abutting and fixing the plurality of electrolytic cells and the bipolar plates.
The electrolytic tank is integrated in a bipolar mode, namely, each single cell (membrane electrode) is connected in series for supplying power, supplying water and exhausting gas, if one membrane electrode or other components in the electrolytic tank have faults, the whole electrolytic tank can stop working immediately, and when the electrolytic tank is maintained, the whole electrolytic tank needs to be disassembled completely to find out and replace the fault components, then the electrolytic tank is assembled again for recovery, and the reactivation performance is also needed after recovery. The whole maintenance process is time-consuming and labor-consuming, and the disassembly and assembly process can possibly lead to the damage of other membrane electrodes or parts, thereby causing the reduction of the overall performance of the electrolytic cell.
For this reason, it is highly desirable to find a new assembly or integration method to avoid or reduce the above phenomena or unnecessary losses due to the operations.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a PEM water electrolysis hydrogen production electrolytic tank and a water electrolysis hydrogen production method, which are connected with circuits of the electrolytic tank monomers, water paths and gas paths are connected in parallel, and the electrolytic tank monomers do not interfere with each other.
A PEM electrolytic hydrogen production electrolytic tank comprises an electrolytic tank monomer and a tank body for integrally installing a plurality of electrolytic tank monomers in parallel,
the electrolytic cell unit comprises a proton exchange membrane, a positive plate and a negative plate which are arranged on two sides of the proton exchange membrane, a positive end plate arranged on the outer side of the positive plate and a negative end plate arranged on the outer side of the negative plate, wherein the positive end plate is provided with a water inlet for supplying water to the electrolytic cell unit and an oxygen outlet for outputting oxygen generated by electrolysis; the negative end plate is provided with a hydrogen outlet for outputting hydrogen generated by electrolysis,
the cell body is provided with a plurality of installation positions for installing the electrolytic cell monomers, and each installation position is provided with a water inlet pipeline interface, an oxygen pipeline interface and a hydrogen pipeline interface which are respectively communicated with a water inlet, an oxygen outlet and a hydrogen outlet on the electrolytic cell monomers.
In the utility model, the electrolytic cell monomer is a blade type, that is, the dimension of one direction in the three-dimensional structure of the electrolytic cell monomer is obviously smaller than the dimension of the other two directions, for example, the minimum dimension direction is not more than 1/5 or even 1/10 of the dimension of the other two directions.
Preferably, an opening on one side of the tank body is arranged, the water inlet pipeline interface, the oxygen pipeline interface and the hydrogen pipeline interface are arranged on the inner side of one side opposite to the opening, and the water inlet, the oxygen outlet and the hydrogen outlet are arranged on the same side of the electrolytic cell body. The device can directly insert each electrolytic cell monomer from one side of the opening of the tank body, so that the water inlet, the oxygen outlet and the hydrogen outlet on the electrolytic cell monomer are respectively connected with the water inlet pipeline interface, the oxygen pipeline interface and the hydrogen pipeline interface in the tank body.
More preferably, the water inlet, the oxygen outlet and the hydrogen outlet are all provided with plug pipes protruding out of the surface of the positive end plate or the negative end plate, and the water inlet pipeline interface, the oxygen pipeline interface and the hydrogen pipeline interface are all provided with joint pipes which are in plug fit with the plug pipes during installation. The plug-in type design is very convenient to use.
Further preferably, the joint pipe is embedded in the tank body. The embedded design can be conveniently spliced and matched.
After each joint pipe is in plug-in fit with the plug pipe, the pipeline needs to be opened, and meanwhile, after the plug pipe is pulled out, the joint pipe needs to be closed, so that the joint pipe can be opened or closed by arranging an automatic or manual mechanism. Further preferably, the joint pipe is provided with an automatic opening and closing mechanism which is opened when the joint pipe is in plug-in fit with the plug pipe and is closed after the plug pipe is pulled out.
Further preferably, the automatic opening and closing mechanism comprises a pulling sheet arranged at the mouth of the joint pipe and a spring, one end of which is connected with the inner side wall of the joint pipe, and the other end of which is connected with the inner side wall of the pulling sheet. The connector tube is sealed by the pulling sheet, then when the connector tube is matched, the pulling sheet can be jacked up when the end part of the plug tube stretches into the connector tube, and when the plug tube is pulled out, the pulling sheet can be reset under the action of the spring. Further preferably, the plectrum includes the multi-disc that surrounds into the circle, and each plectrum basal portion is fixed with the joint pipe inside wall connection, and the tip overlaps each other.
Further preferably, the automatic opening and closing mechanism includes a solenoid valve provided at a joint pipe opening.
Further preferably, the electrolytic cell monomer is clamped into the tank body,
the positive electrode plate is provided with a positive electrode lug, the negative electrode plate is provided with a negative electrode lug, the positive electrode lug and the negative electrode lug are respectively positioned on two opposite sides of the electrolytic cell unit, which are clamped with the side wall of the cell body, and the side wall of the cell body is provided with a lug clamping groove for clamping the positive electrode lug or the negative electrode lug.
The utility model also provides a method for producing hydrogen by water electrolysis, which uses the PEM water electrolysis hydrogen production electrolytic tank, all electrolytic tank monomer circuits are connected in parallel, and a breaker is arranged on the positive electrode line of each path.
According to the PEM water electrolysis hydrogen production electrolytic tank, the electrolytic tank monomers are integrally arranged in the tank body in a parallel mode, the circuits, the waterways and the gas paths for connecting the electrolytic tank monomers are all in a parallel mode, the electrolytic tank monomers do not interfere with each other, one electrolytic tank monomer is required to be maintained or replaced when being failed, the whole operation is not influenced, and only the electrolytic tank monomer with a problem is required to be treated independently. In addition, the cell body adopts a modularized assembly structure, so that the electrolytic cell monomer is convenient to install on the cell body, high in integration level, small in size and wide in application scene; the hydrogen production specification of the PEM water electrolysis hydrogen production electrolytic tank can be regulated and controlled through superposition or reduction of electrolytic tank monomers so as to adapt to hydrogen production requirements of different scenes; the electrolysis Chi Shanti is easy to disassemble and assemble and is more convenient to maintain than the conventional electrolytic tank.
Drawings
FIG. 1 is a schematic view of the explosive structure of the cell unit of the present utility model.
FIG. 2 is a schematic side view of the cell unit of the present utility model.
FIG. 3 is a schematic diagram of the structure of a PEM water electrolysis hydrogen production electrolyzer of the utility model.
Fig. 4 is a schematic structural view of an automatic opening and closing mechanism of a pulling sheet structure before the plug tube is in plug-in fit with the joint tube.
Fig. 5 is a schematic structural view of the automatic opening and closing mechanism with the pulling piece structure after the plug tube and the joint tube are in plug-in fit.
Reference numerals:
cell unit 1, proton exchange membrane 101, positive plate 102, negative plate 103, positive end plate 104, negative end plate 105, water inlet 106, oxygen outlet 107, hydrogen outlet 108, plug tube 109, positive tab 110, negative tab 111,
tank body 2, water inlet pipeline interface 201, oxygen pipeline interface 202, hydrogen pipeline interface 203, joint pipe 204, pulling sheet 205, spring 206 and lug clamping groove 207.
Detailed Description
As shown in fig. 1 to 3, a PEM water electrolysis hydrogen production electrolytic cell comprises an electrolytic cell body 1 and a cell body 2 for integrally installing a plurality of electrolytic cell bodies 1 in parallel.
As shown in fig. 1 and 2, each electrolytic cell unit 1 comprises a proton exchange membrane 101 in the middle, a positive plate 102 and a negative plate 103 arranged on two sides of the proton exchange membrane 101, a positive end plate 104 arranged on the outer side of the positive plate 102 and a negative end plate 105 arranged on the outer side of the negative plate 103, wherein a water inlet 106 for supplying water to the electrolytic cell unit 1 and an oxygen outlet 107 for outputting oxygen generated by electrolysis are arranged on the positive end plate 104; the negative electrode end plate 105 is provided with a hydrogen outlet 108 for outputting hydrogen generated by electrolysis. The water inlet 106, the oxygen outlet 107 and the hydrogen outlet 108 are all arranged on the same side of the electrolytic cell 1. The positive end plate 104 is provided with a positive lug 110, the negative end plate 105 is provided with a negative lug 111, and the positive lug 110 and the negative lug 111 are respectively positioned on two opposite sides of the side wall joint of the electrolytic cell unit 1 and the tank body 2.
In the present utility model, the cell unit 1 is of a blade type, that is, the dimension of one direction in the three-dimensional structure of the cell unit 1 is significantly smaller than the dimension of the other two directions, such as the minimum dimension direction is not more than 1/5, even 1/10, of the dimension of the other two directions.
As shown in fig. 3, the tank body 2 is provided with a plurality of installation positions for installing the electrolytic cell 1, and each installation position is provided with a water inlet pipeline interface 201, an oxygen pipeline interface 202 and a hydrogen pipeline interface 203 which are respectively used for being communicated with the water inlet 106, the oxygen outlet 107 and the hydrogen outlet 108 on the electrolytic cell 1.
The tank body 2 is provided with an opening on one side, and the water inlet pipeline port 201, the oxygen pipeline port 202 and the hydrogen pipeline port 203 are arranged on the inner side of the side opposite to the opening. The side wall of the tank body 2 is provided with a tab clamping groove 207 for clamping the positive tab 110 or the negative tab 111 on the electrolytic cell unit 1.
During assembly, the single electrolytic cell 1 is sequentially clamped into the tank body 2, one side of the electrolytic cell 1, which is provided with the water inlet 106, the oxygen outlet 107 and the hydrogen outlet 108, faces one side of the tank body 2, which is provided with the water inlet pipeline interface 201, the oxygen pipeline interface 202 and the hydrogen pipeline interface 203, and the electrolytic cell 1 is directly inserted from one side of the opening of the tank body 2, so that the water inlet 106 on the electrolytic cell 1 is connected with the water inlet pipeline interface 201 in the tank body 2; the oxygen outlet 107 on the electrolytic cell monomer 1 is connected with the oxygen pipeline interface 202 in the tank body 2; the hydrogen outlet 108 on the electrolytic cell monomer 1 is connected with the hydrogen pipeline interface 203 in the tank body 2; the positive lugs 110 and the negative lugs 111 on the electrolytic cell unit 1 are respectively clamped into lug clamping grooves 207 on the side walls of two sides of the groove body 2, all the follow-up positive lugs are connected to one connecting line in parallel, and all the negative lugs are connected to one connecting line in parallel.
The water inlet 106, the oxygen outlet 107 and the hydrogen outlet 108 are respectively provided with a plug pipe 109 protruding from the surface of the positive end plate 104 or the negative end plate 105, and the water inlet pipeline interface 201, the oxygen pipeline interface 202 and the hydrogen pipeline interface 203 are respectively provided with a joint pipe 204 which is in plug-in fit with the plug pipe 109 during installation. The plug-in type design is very convenient to use.
In a preferred embodiment, the connector tube 204 is embedded in the tank 2. The embedded design can be conveniently spliced and matched. Each of the joint pipes 204 is required to be opened after being inserted into the header pipe 109, and the joint pipe 204 is required to be closed after the header pipe 109 is pulled out, so that the joint pipe 204 can be opened or closed by providing an automatic or manual mechanism. Therefore, the joint pipe 204 is provided with an automatic opening/closing mechanism that opens when the joint pipe 109 is inserted and fitted, and closes after the joint pipe 109 is pulled out.
In one embodiment, as shown in fig. 4 and 5, the automatic opening and closing mechanism includes a dial 205 provided at the mouth of the joint pipe 204 and a spring 206 having one end connected to the inner side wall of the joint pipe 204 and the other end connected to the inner side wall of the dial 205. The plug tube 204 is closed by the pulling piece 205, and then the pulling piece 205 can be pushed up when the end of the plug tube 109 stretches into the plug tube 204 during matching, and the pulling piece 205 can be reset under the action of the spring 206 when the plug tube 109 is pulled out. The pulling sheets 205 comprise a plurality of surrounding rings, the base part of each pulling sheet 205 is fixedly connected with the inner side wall of the joint pipe 204, and the end parts are mutually overlapped.
In another embodiment, the automatic opening and closing mechanism includes a solenoid valve provided at the mouth of the joint pipe 204. The solenoid valve may be automatically opened or closed when required by the control of the circuit.
When the PEM water electrolysis hydrogen production electrolytic tank is used for water electrolysis hydrogen production, a plurality of independent 'blade type' electrolytic tank monomers 1 are integrated and packaged, so that a large electrolytic tank is formed, wherein a circuit, a waterway and a gas circuit which are connected with each electrolytic tank monomer 1 are connected in parallel, and the electrolytic tank monomers 1 do not interfere with each other. The hydrogen production scale can be regulated and controlled through superposition or reduction of monomers according to the requirement, so as to adapt to the hydrogen production requirement under the condition of no use of the scene. When assembling, each electrolytic cell 1 is simply inserted into the corresponding installation position in the tank body 2. The circuits of the electrolytic cell monomers 1 are connected in parallel, and a breaker is arranged on the positive electrode line of each path, when one electrolytic cell monomer 1 breaks down or is pulled out, the circuit of the electrolytic cell monomer 1 is disconnected immediately, and power-off is implemented.
Claims (7)
1. A PEM electrolytic hydrogen production electrolytic tank is characterized by comprising an electrolytic tank monomer and a tank body for integrally installing a plurality of electrolytic tank monomers in parallel,
the electrolytic cell unit comprises a proton exchange membrane, a positive plate and a negative plate which are arranged on two sides of the proton exchange membrane, a positive end plate arranged on the outer side of the positive plate and a negative end plate arranged on the outer side of the negative plate, wherein the positive end plate is provided with a water inlet for supplying water to the electrolytic cell unit and an oxygen outlet for outputting oxygen generated by electrolysis; the negative end plate is provided with a hydrogen outlet for outputting hydrogen generated by electrolysis,
the tank body is provided with a plurality of installation positions for installing the electrolytic cell monomers, each installation position is provided with a water inlet pipeline interface, an oxygen pipeline interface and a hydrogen pipeline interface which are respectively used for being communicated with a water inlet, an oxygen outlet and a hydrogen outlet on the electrolytic cell monomers,
the water inlet, the oxygen outlet and the hydrogen outlet are arranged on the same side of the electrolytic cell monomer,
the water inlet, the oxygen outlet and the hydrogen outlet are respectively provided with a plug pipe protruding from the surface of the positive end plate or the negative end plate, the water inlet pipeline interface, the oxygen pipeline interface and the hydrogen pipeline interface are respectively provided with a joint pipe which is in plug-in fit with the plug pipes during installation,
the connector tube is provided with an automatic opening and closing mechanism which is opened when the connector tube is in plug-in fit with the plug tube and is closed after the plug tube is pulled out.
2. The PEM water electrolysis hydrogen production electrolyzer of claim 1 wherein the adapter tube is embedded in the tank body.
3. The PEM water electrolysis hydrogen production electrolyzer of claim 1 wherein the automatic opening and closing mechanism comprises a paddle disposed at the mouth of the adapter tube and a spring having one end connected to the inside wall of the adapter tube and the other end connected to the inside wall of the paddle.
4. A PEM water electrolysis hydrogen production cell according to claim 3 wherein the paddles comprise a plurality of circumferentially-encircling paddles, each paddle base being fixedly connected to the inner side wall of the connector tube, the ends overlapping one another.
5. The PEM water electrolysis hydrogen production electrolyzer of claim 1 wherein the automatic opening and closing mechanism comprises a solenoid valve disposed at the mouth of the connector tube.
6. The PEM water electrolysis hydrogen production electrolyzer of claim 1 wherein the electrolyzer cells snap into the cell body,
the positive electrode plate is provided with a positive electrode lug, the negative electrode plate is provided with a negative electrode lug, the positive electrode lug and the negative electrode lug are respectively positioned on two opposite sides of the electrolytic cell unit, which are clamped with the side wall of the cell body, and the side wall of the cell body is provided with a lug clamping groove for clamping the positive electrode lug or the negative electrode lug.
7. A method for producing hydrogen by water electrolysis, which is characterized in that the PEM water electrolysis hydrogen production electrolytic tank as claimed in any one of claims 1 to 6 is used, the cell individual circuits are connected in parallel, and a breaker is arranged on the positive electrode line of each path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210103945.0A CN114622233B (en) | 2022-01-27 | 2022-01-27 | Electrolytic bath for producing hydrogen by PEM water electrolysis and method for producing hydrogen by water electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210103945.0A CN114622233B (en) | 2022-01-27 | 2022-01-27 | Electrolytic bath for producing hydrogen by PEM water electrolysis and method for producing hydrogen by water electrolysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114622233A CN114622233A (en) | 2022-06-14 |
| CN114622233B true CN114622233B (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210103945.0A Active CN114622233B (en) | 2022-01-27 | 2022-01-27 | Electrolytic bath for producing hydrogen by PEM water electrolysis and method for producing hydrogen by water electrolysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114622233B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6669826B1 (en) * | 2001-04-11 | 2003-12-30 | Giner Electrochemical Systems, Llc | Compact proton exchange membrane (PEM) electrochemical cell stack |
| DE102004039116A1 (en) * | 2003-08-12 | 2005-03-24 | Wimmer, Robert, Dipl.-Ing. Dr. | Proton exchange membrane electrolyzer for electrolyzing hydrogen comprises anode, cathode, polymer membrane, gas diffusion medium and bipolar plate having cone shape |
| WO2013005885A1 (en) * | 2011-07-04 | 2013-01-10 | 김천우 | Brown's gas generating device |
-
2022
- 2022-01-27 CN CN202210103945.0A patent/CN114622233B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6669826B1 (en) * | 2001-04-11 | 2003-12-30 | Giner Electrochemical Systems, Llc | Compact proton exchange membrane (PEM) electrochemical cell stack |
| DE102004039116A1 (en) * | 2003-08-12 | 2005-03-24 | Wimmer, Robert, Dipl.-Ing. Dr. | Proton exchange membrane electrolyzer for electrolyzing hydrogen comprises anode, cathode, polymer membrane, gas diffusion medium and bipolar plate having cone shape |
| WO2013005885A1 (en) * | 2011-07-04 | 2013-01-10 | 김천우 | Brown's gas generating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114622233A (en) | 2022-06-14 |
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