CN116988088A - Experimental water electrolysis hydrogen production equipment and electrode assembly thereof - Google Patents
Experimental water electrolysis hydrogen production equipment and electrode assembly thereof Download PDFInfo
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- CN116988088A CN116988088A CN202311012780.7A CN202311012780A CN116988088A CN 116988088 A CN116988088 A CN 116988088A CN 202311012780 A CN202311012780 A CN 202311012780A CN 116988088 A CN116988088 A CN 116988088A
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- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 123
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 89
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000001257 hydrogen Substances 0.000 title claims abstract description 76
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 76
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 66
- 238000003825 pressing Methods 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 20
- 230000000712 assembly Effects 0.000 claims description 18
- 238000000429 assembly Methods 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 16
- 239000007769 metal material Substances 0.000 claims description 11
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 239000012811 non-conductive material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 230000002776 aggregation Effects 0.000 abstract description 4
- 238000004220 aggregation Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003011 anion exchange membrane Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000005514 two-phase flow 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
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
-
- 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
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
- C25B15/023—Measuring, analysing or testing during electrolytic production
- C25B15/025—Measuring, analysing or testing during electrolytic production of electrolyte parameters
- C25B15/027—Temperature
-
- 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
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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)
- Analytical Chemistry (AREA)
- Automation & Control Theory (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The application provides experimental water electrolysis hydrogen production equipment and an electrode assembly thereof. The two diversion electric cores with the same height are respectively connected with the anode and the cathode of the same external power supply, so that a plurality of independent detectable spaces are formed by the electrodes during electrolysis, and the voltages of different areas inside the water electrolysis hydrogen production equipment can be detected. Because the different levels of bubble aggregation of the water electrolysis hydrogen production equipment in the electrolysis cell are different, after the voltage of each area is obtained, the influence of the distribution of the bubbles in the electrolysis cell on the internal resistance of the water electrolysis cell is accurately obtained, so that support can be provided for the optimal design of the electrodes and the flow fields in the electrolysis cell, the performance of the water electrolysis hydrogen production equipment is improved, and the service lives of the electrodes and the diaphragms are prolonged.
Description
Technical Field
The application relates to the technical field of water electrolysis hydrogen production, in particular to experimental water electrolysis hydrogen production equipment and an electrode assembly thereof.
Background
Water electrolysis breaks down water into hydrogen and oxygen by the application of electrical energy under the action of a catalyst. There are currently mainly four different types of water electrolysis technical routes, depending on the working temperature and the type of electrolyte used: alkaline water electrolysis, proton exchange membrane water electrolysis, anion exchange membrane water electrolysis and solid oxide water electrolysis.
Compared with other water electrolysis technologies, the alkaline water electrolysis technology is the most mature, does not contain noble metals, has low cost and long service life, and is the most main technical route in the water electrolysis hydrogen production market at the present stage.
The fluid dynamics of the two-phase flow (gas/electrolyte produced) in an alkaline water electrolyzer strongly affects the performance of the system. Particularly, bubbles generated under the high current density operation condition have multiple and key effects on ion migration, mass transmission, system optimization and efficiency in the reaction process of the electrolytic tank, so that the current density and the temperature field of the electrolytic tank are poor in area, the electrolytic water reaction is uneven, and the electrolytic efficiency is reduced. The existing electrolytic cell can only detect single-chamber electrolysis, the single-chamber voltage test sampling position is on the side edge of each bipolar plate, only the average voltage of each small chamber can be tested, and the local voltages of different areas inside the electrolytic cell can not be tested. In the running process of the electrolytic cell, a large amount of gas is generated in the electrolytic cell, the gas moves upwards in the form of bubbles in the solution, the volume fraction of the gas at the upper part is larger than that at the lower part, the phenomenon can cause the resistance value at the upper part of the cell to be different from that at the lower part, and the difference can influence the performance and the service life of the whole electrode and the diaphragm. If the local voltage in the electrolytic tank cannot be tested, the influence of bubble distribution on the difference of upper and lower resistance values in the electrolytic tank cannot be accurately solved, and further, the relevant design in the electrolytic tank cannot be optimized.
Disclosure of Invention
The application aims to provide a hydrogen production device for water electrolysis, which solves the technical problems that in the prior art, the hydrogen production device for water electrolysis only can measure the average voltage of each electrolysis cell and can not independently detect the local voltages of different areas in the device.
In order to achieve the above object, the present application provides an electrode assembly of an experimental water electrolysis hydrogen production apparatus including a polar plate, comprising:
the electrode bodies are arranged at intervals and are distributed along the height direction of the polar plate; and, a step of, in the first embodiment,
the electrode body is provided with a plurality of current-guiding cells, one current-guiding cell is connected with one electrode body in a conductive mode, and the current-guiding cells are connected with the electrode plates.
Optionally, in the electrode assembly of the experimental water electrolysis hydrogen production device, the diversion electric core is detachably connected with the electrode body, at least one side of the electrode body is provided with a first installation part, one end of the diversion electric core is provided with a second installation part, and the first installation part is detachably connected with the second installation part.
Optionally, in the electrode assembly of the experimental water electrolysis hydrogen production device, the first installation part is a bending part arranged at one side of the electrode body, an included angle between the bending part and the electrode body is an acute angle, the second installation part is an installation groove, and the bending part is clamped in the installation groove.
Optionally, in the electrode assembly of the experimental water electrolysis hydrogen production device, the experimental water electrolysis hydrogen production device further comprises an electrode pressing block, the width of the electrode pressing block is smaller than the width of the first installation portion, the length of the electrode pressing block is larger than the length of the first installation portion and smaller than the length of one side, connected with the first installation portion, of the diversion cell, the electrode pressing block is arranged on the bending portion, and two ends of the electrode pressing block are fixedly connected with the diversion cell so as to compress the bending portion with the inner wall of the installation groove.
Optionally, in the electrode assembly of the experimental water electrolysis hydrogen production device, the experimental water electrolysis hydrogen production device further comprises a connecting flange, wherein the connecting flange is arranged on the diversion cell and is used for connecting the diversion cell with the polar plate.
Optionally, in the electrode assembly of the experimental water electrolysis hydrogen production device, the diversion electric core is fixedly connected with the electrode body.
On the other hand, the application also provides experimental water electrolysis hydrogen production equipment, which comprises polar plates at two ends, a diaphragm and the electrode assembly, wherein a sealing piece is arranged between the two polar plates, and the diaphragm is arranged between the two polar plates to divide the two polar plates into two electrolysis cells; a plurality of electrode assemblies are arranged in each electrolysis cell at intervals along the vertical direction of the water electrolysis hydrogen production equipment; the current conducting core of each electrode assembly at least partially protrudes out of the edge of the polar plate; wherein the electrode assemblies in different electrolysis cells are arranged in a one-to-one correspondence.
Optionally, in the experimental water electrolysis hydrogen production equipment, the diversion electric cores of the two electrode assemblies which are positioned at the same height and in different electrolysis cells are arranged at the same side of the water electrolysis hydrogen production equipment; the two diversion cells positioned on the same side and at the same height are respectively connected with the anode and the cathode of an external power supply.
Optionally, in the experimental water electrolysis hydrogen production equipment, the polar plate is made of a corrosion-resistant and high-temperature-resistant non-conductive material, and the electrode pressing block and the connecting flange are both made of metal materials.
Optionally, in the experimental water electrolysis hydrogen production equipment, the polar plate is made of metal materials, the electrode pressing block and the connecting flange are made of metal materials, and the surfaces of the electrode pressing block and the connecting flange are provided with insulating sleeves.
Optionally, in the experimental water electrolysis hydrogen production equipment, the number of electrode assemblies in each electrolysis cell is not less than 4.
Optionally, in the experimental water electrolysis hydrogen production device, the diversion electric cores of two adjacent electrode assemblies in the same electrolysis cell are respectively positioned at two sides of the water electrolysis hydrogen production device.
Optionally, in the experimental water electrolysis hydrogen production device, the water electrolysis hydrogen production device further comprises a temperature sensor, and the temperature sensor is arranged on one side of the polar plate far away from the diversion electric core and is positioned at the same height with the diversion electric core.
Compared with the prior art, the electrode assembly of the experimental water electrolysis hydrogen production equipment is provided, and the electrodes of the water electrolysis hydrogen production equipment are arranged into a plurality of electrode bodies, and each electrode body is provided with one current-conducting core, so that the electrodes of the water electrolysis hydrogen production equipment can be divided into a plurality of independent experimental areas. The two diversion electric cores with the same height are respectively connected with the anode and the cathode of the same external power supply, so that a plurality of independent detectable spaces are formed by the electrodes during electrolysis, and the local voltages of different areas inside the water electrolysis hydrogen production equipment can be detected. Because the different levels of bubble aggregation of the water electrolysis hydrogen production equipment in the electrolysis cell are different, after the voltage of each area is obtained, the influence of the distribution of the bubbles in the electrolysis cell on the internal resistance of the water electrolysis cell is accurately obtained, so that support can be provided for the optimal design of the electrodes and the flow fields in the electrolysis cell, the performance of the water electrolysis hydrogen production equipment is improved, and the service lives of the electrodes and the diaphragms are prolonged.
Drawings
Fig. 1 is a schematic view of an electrode assembly according to an embodiment of the present application;
fig. 2 is a structural exploded view of an electrode assembly according to an embodiment of the present application;
FIG. 3 is a schematic view of an electrode assembly layout on a plate according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of an experimental water electrolysis hydrogen production device according to an embodiment of the present application;
FIG. 5 is an exploded view of the experimental water electrolysis hydrogen plant provided by the embodiment of the application;
fig. 6 is a schematic diagram of the structure of the inside of the experimental water electrolysis hydrogen production equipment provided by the embodiment of the application.
Wherein, the reference numerals of the figures 1-6 are as follows:
10-an electrode assembly; 11-an electrode body; 12-a diversion cell; 11 a-a first mounting portion; 12 a-a second mounting portion; 12 b-a second threaded hole; 13-electrode press blocks; 13 a-a first threaded hole; 14-connecting flanges; 20-polar plate; 30-a separator; 40-a temperature sensor; 50-an external power source; 60-bolts.
Detailed Description
In order to make the objects, advantages and features of the present application more apparent, the experimental water electrolysis hydrogen production apparatus and the electrode assembly thereof according to the present application will be described in further detail with reference to fig. 1 to 6. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the application.
In order that the application may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In the description of the present specification and the appended claims, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
See fig. 1-3. The application provides an electrode assembly 10 of an experimental water electrolysis hydrogen production device, which comprises a polar plate 20. The electrode assembly 10 of the experimental water electrolysis hydrogen plant includes: the electrode comprises a plurality of electrode bodies 11 and a plurality of current guiding cells 12, wherein one current guiding cell 12 is electrically connected with one electrode body 11, that is, the number of the electrode bodies 11 is the same as the number of the current guiding cells 12. The diversion cell 12 is connected with the polar plate 20. Wherein, two adjacent electrode bodies 11 are arranged at intervals and distributed along the height direction of the polar plate 20.
Referring to fig. 4, by arranging the electrodes of the water electrolysis hydrogen production equipment into a plurality of electrode bodies 11, each electrode body 11 is provided with a current conducting core 12, so that the electrodes of the water electrolysis hydrogen production equipment can be divided into a plurality of independent experimental areas. The two diversion cells 12 with the same height are respectively connected with the anode and the cathode of the same external power supply 50, so that a plurality of independent detectable spaces are formed by the electrodes during electrolysis, and the local voltages of different areas inside the water electrolysis hydrogen production equipment can be detected. Because the different levels of bubble aggregation of the water electrolysis hydrogen production equipment in the electrolysis cell are different, after the voltage of each area is obtained, the influence of the distribution of the bubbles in the electrolysis cell on the internal resistance of the water electrolysis cell is accurately obtained, so that support can be provided for the optimal design of the electrodes and the flow fields in the electrolysis cell, the performance of the water electrolysis hydrogen production equipment is improved, and the service lives of the electrodes and the diaphragms 30 are prolonged.
In one embodiment, the current guiding electric core 12 is detachably connected with the electrode body 11, at least one side of the electrode body 11 is provided with a first mounting portion 11a, one end of the current guiding electric core 12 is provided with a second mounting portion 12a, and the first mounting portion 11a is detachably connected with the second mounting portion 12 a.
Specifically, the first mounting portion 11a is a bent portion disposed on one side of the electrode body 11, and an included angle between the bent portion and the electrode body 11 is an acute angle, for example, an included angle between the bent portion and the electrode body 11 is 15 °, 30 °, 45 °, 75 ° and 85 °. The second mounting portion 12a is a mounting groove, and the bending portion is engaged in the mounting groove. Therefore, when the electrode body 11 and the diversion cell 12 are kept on the same axis, and the included angle between the bending part and the electrode body 11 is an acute angle, the bending part and the inner wall of the mounting groove can be effectively contacted and connected. Thereby ensuring that the electrode body 11 is electrically connected with the diversion cell 12.
In another embodiment, the experimental water electrolysis hydrogen production plant further comprises an electrode pressing block 13, wherein the width of the electrode pressing block 13 is smaller than the width of the first mounting part 11 a; the length of the electrode pressing block 13 is greater than the length of the first mounting portion 11a and less than the length of the side, connected with the first mounting portion 11a, of the diversion cell 12. The electrode pressing block 13 is arranged on the bending part, and two ends of the electrode pressing block 13 are fixedly connected with the diversion cell 12 so as to tightly press the bending part with the inner wall of the mounting groove. Specifically, the two ends of the electrode pressing block 13 are provided with first threaded holes 13a along the width direction thereof, the flow guide battery cell 12 is also provided with corresponding second threaded holes 12b, and the electrode pressing block 13 is fixedly connected with the flow guide battery cell 12 through a bolt 60, so that the bending part and the inner wall of the mounting groove can be further ensured to be tightly attached, and good conductivity is ensured.
Specifically, the current-guiding battery cell also comprises a connecting flange 14, wherein the connecting flange 14 is arranged on the current-guiding battery cell 12, and is used for connecting the current-guiding battery cell 12 with the polar plate 20. This facilitates the fixed connection of the electrode assembly 10 and the electrode plate 20, and ensures firm connection.
In yet another embodiment, the current guiding cell 12 is fixedly connected to the electrode body 11, specifically, the current guiding cell 12 and the electrode body 11 may be welded, or the current guiding cell 12 and the electrode body 11 may be in an integral structure.
Referring to fig. 4-6, in conjunction with fig. 1-3. On the other hand, the application also provides experimental water electrolysis hydrogen production equipment, which comprises polar plates 20 at two ends, a diaphragm 30 and the electrode assembly 10, wherein a sealing piece is arranged between the two polar plates 20, and the diaphragm 30 is arranged between the two polar plates 20 to divide the two polar plates 20 into two electrolysis cells; a plurality of electrode assemblies 10 are arranged in each electrolysis cell at intervals along the vertical direction of the water electrolysis hydrogen production equipment; the diversion cell 12 of each electrode assembly 10 at least partially protrudes from the edge of the electrode plate 20; wherein the electrode assemblies 10 located in different electrolysis cells are arranged in a one-to-one correspondence.
By dividing the electrodes in the electrolysis cells of the water electrolysis hydrogen production equipment into a plurality of electrode assemblies 10, a plurality of independent detection areas with different heights are formed, which is consistent with the distribution rule of bubbles in the working state of the water electrolysis hydrogen production equipment. After detecting the local voltages of different areas in the water electrolysis hydrogen production equipment, the influence of the distribution of bubbles in the electrolysis cell on the internal resistance of the water electrolysis hydrogen production equipment can be accurately obtained, so that support can be provided for the optimal design of the electrodes and the flow fields in the electrolysis cell, the performance of the water electrolysis hydrogen production equipment is improved, and the service lives of the electrodes and the diaphragms 30 are prolonged.
Specifically, the diversion cells 12 of the two electrode assemblies 10 positioned at the same height and in different electrolysis cells are arranged on the same side of the water electrolysis hydrogen production equipment. Wherein, two diversion cells 12 located at the same side and the same height are respectively used for connecting with the positive and negative poles of the external power supply 50. Thus, the positive and negative electrodes of the external power supply 50 are conveniently connected with the diversion cell 12 to form a conductive loop, and the structure layout is reasonable.
The electrode plate 20 is made of a non-conductive material with corrosion resistance and high temperature resistance, and the electrode pressing block 13 and the connecting flange 14 are made of metal materials. Because the electrode pressing block 13 is connected with the electrode body 11 and the diversion cell 12, the electrode pressing block 13 is made of a metal material, so that the conductivity between the electrode body 11 and the diversion cell 12 can be further ensured. Because the polar plate 20 is made of a non-conductive material with corrosion resistance and high temperature resistance, and the connecting flange 14 is made of a metal material, the connection strength of the electrode assembly 10 and the polar plate 20 can be ensured, and the detection independence of the external power supply 50 can not be influenced.
In yet another embodiment, the electrode plate 20 is made of a metal material, the electrode pressing block 13 and the connecting flange 14 are made of a metal material, and the surfaces of the electrode pressing block 13 and the connecting flange 14 are provided with insulating sleeves (not shown in the figure). The electrode plate 20 is made of metal, so that the strength of the electrode plate 20 can be ensured, and the insulating sleeves are arranged on the surfaces of the electrode pressing block 13 and the connecting flange 14, so that the independence of detection of the external power supply 50 can not be influenced when the electrode plate 20 made of metal is connected with the electrode assembly 10.
Specifically, there are no less than 4 electrode assemblies 10 in each electrolysis cell. The number of the electrode assemblies 10 in each electrolysis cell may be configured according to the size of the electrode. For example, the number of electrode assemblies 10 in each electrolysis cell is 4, 5, 6 and 8.
The diversion cells 12 of two adjacent electrode assemblies 10 in the same electrolysis cell are respectively positioned at two sides of the water electrolysis hydrogen production equipment. This may allow for a more rational layout and may also avoid multiple external power sources 50 from collecting on the same side of the water electrolysis hydrogen plant.
See in particular fig. 6. The water electrolysis hydrogen production device further comprises a temperature sensor 40, wherein the temperature sensor 40 is arranged on one side of the polar plate 20 far away from the diversion cell 12 and is positioned at the same height with the diversion cell 12. That is, along the width direction of the electrolytic cell, one side of each electrode body 11 is connected with the diversion cell 12, and the polar plate 20 close to the other side of the electrode body 11 far from the diversion cell 12 is provided with the temperature sensor 40, so that the temperature of a plurality of independent detection areas can be monitored, and the detected voltage of the corresponding detection area can be assisted to perform double judgment on the influence of bubble aggregation on the electrolytic efficiency.
The above description is only illustrative of the preferred embodiments of the present application and is not intended to limit the scope of the present application, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (13)
1. An electrode assembly of an experimental water electrolysis hydrogen plant comprising a plate, comprising:
the electrode bodies are arranged at intervals and are distributed along the height direction of the polar plate; and, a step of, in the first embodiment,
the electrode body is provided with a plurality of current-guiding cells, one current-guiding cell is connected with one electrode body in a conductive mode, and the current-guiding cells are connected with the electrode plates.
2. The electrode assembly of the experimental water electrolysis hydrogen production equipment according to claim 1, wherein the diversion cell is detachably connected with the electrode body, at least one side of the electrode body is provided with a first installation part, one end of the diversion cell is provided with a second installation part, and the first installation part is detachably connected with the second installation part.
3. The electrode assembly of the experimental water electrolysis hydrogen production equipment according to claim 2, wherein the first mounting part is a bending part arranged on one side of the electrode body, an included angle between the bending part and the electrode body is an acute angle, the second mounting part is a mounting groove, and the bending part is clamped in the mounting groove.
4. An electrode assembly of an experimental water electrolysis hydrogen production plant according to claim 3, further comprising an electrode press block, wherein the width of the electrode press block is smaller than the width of the first installation part, the length of the electrode press block is larger than the length of the first installation part and smaller than the length of one side, connected with the first installation part, of the diversion cell, the electrode press block is arranged on the bending part, and two ends of the electrode press block are fixedly connected with the diversion cell so as to press the bending part against the inner wall of the installation groove.
5. The electrode assembly of an experimental water electrolysis hydrogen plant according to claim 1, further comprising a connection flange disposed on the flow cell connecting the flow cell with the pole plate.
6. The electrode assembly of the experimental water electrolysis hydrogen production plant according to claim 1, wherein the diversion cell is fixedly connected with the electrode body.
7. An experimental water electrolysis hydrogen production device, which is characterized by comprising polar plates at two ends, a diaphragm and the electrode assembly of any one of claims 1-6, wherein a sealing piece is arranged between the two polar plates, and the diaphragm is arranged between the two polar plates to divide the two polar plates into two electrolysis cells; a plurality of electrode assemblies are arranged in each electrolysis cell at intervals along the vertical direction of the water electrolysis hydrogen production equipment; the current conducting core of each electrode assembly at least partially protrudes out of the edge of the polar plate; wherein the electrode assemblies in different electrolysis cells are arranged in a one-to-one correspondence.
8. The experimental water electrolysis hydrogen plant according to claim 7, wherein the flow guiding cells of the two electrode assemblies located at the same height and in different electrolysis cells are disposed on the same side of the water electrolysis hydrogen plant; the two diversion cells positioned on the same side and at the same height are respectively connected with the anode and the cathode of an external power supply.
9. The apparatus for producing hydrogen from water by electrolysis according to claim 7, wherein the polar plate is made of a non-conductive material resistant to corrosion and high temperature, and the electrode pressing block and the connecting flange are made of metal materials.
10. The experimental water electrolysis hydrogen production equipment according to claim 7, wherein the polar plate is made of metal material, the electrode pressing block and the connecting flange are both made of metal material, and the surfaces of the electrode pressing block and the connecting flange are provided with insulating sleeves.
11. The laboratory water electrolysis hydrogen production apparatus according to claim 7, wherein the number of electrode assemblies in each electrolysis cell is not less than 4.
12. The experimental water electrolysis hydrogen production plant according to claim 7, wherein the diversion cells of two adjacent electrode assemblies in the same electrolysis cell are respectively positioned at two sides of the water electrolysis hydrogen production plant.
13. The experimental water electrolysis hydrogen plant according to claim 7, further comprising a temperature sensor disposed on a side of the plate remote from the flow-guiding cell and at the same elevation as the flow-guiding cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311012780.7A CN116988088A (en) | 2023-08-12 | 2023-08-12 | Experimental water electrolysis hydrogen production equipment and electrode assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311012780.7A CN116988088A (en) | 2023-08-12 | 2023-08-12 | Experimental water electrolysis hydrogen production equipment and electrode assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116988088A true CN116988088A (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311012780.7A Pending CN116988088A (en) | 2023-08-12 | 2023-08-12 | Experimental water electrolysis hydrogen production equipment and electrode assembly thereof |
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| CN (1) | CN116988088A (en) |
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2023
- 2023-08-12 CN CN202311012780.7A patent/CN116988088A/en active Pending
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Inventor after: Yao Changcheng Inventor after: Gu Junjie Inventor after: Liu Yubo Inventor after: Cui Peipei Inventor before: Yao Changcheng Inventor before: Gu Junjie Inventor before: Liu Yubo Inventor before: Cui Peipei |