CN218842350U - Metal pole frame, electrolysis unit, electrolytic tank and assembly jig for producing hydrogen by electrolyzing water - Google Patents
Metal pole frame, electrolysis unit, electrolytic tank and assembly jig for producing hydrogen by electrolyzing water Download PDFInfo
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- CN218842350U CN218842350U CN202222663899.8U CN202222663899U CN218842350U CN 218842350 U CN218842350 U CN 218842350U CN 202222663899 U CN202222663899 U CN 202222663899U CN 218842350 U CN218842350 U CN 218842350U
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- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 43
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000001257 hydrogen Substances 0.000 title claims abstract description 20
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000002184 metal Substances 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 34
- 238000003466 welding Methods 0.000 claims description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 239000003792 electrolyte Substances 0.000 claims description 13
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 6
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 239000011550 stock solution Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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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
-
- 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
- C25B9/63—Holders for electrodes; Positioning of the electrodes
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model relates to a metal utmost point frame, electrolysis unit, electrolysis trough and equipment tool for electrolyzing water hydrogen manufacturing, the utmost point frame is cyclic annular, and the inner peripheral surface of utmost point frame is used for directly being connected with the pole piece, and the first side of utmost point frame is provided with the first step portion that is used for installing the diaphragm and is used for installing the second step portion of first electrode from outside-in height with reducing gradually, and the second side of utmost point frame is provided with the third step portion that is used for installing the second electrode. Through above-mentioned technical scheme, the inner peripheral surface of utmost point frame is used for directly being connected with the pole piece, can avoid spending time on the processing hyoplastron, improves the production efficiency of utmost point frame, has still improved the area of the pole piece that can set up in the utmost point frame, improves electrolysis efficiency. Meanwhile, the pole frame is directly connected with the pole piece, so that the position relation between the pole frame and the pole piece and the sealing performance of the connection position can be effectively ensured. The step part can contain the diaphragm and the electrode required by electrolysis, and simultaneously reduces the weight of the electrode frame, thereby being convenient for the positioning and the installation of the diaphragm and the electrode.
Description
Technical Field
The disclosure relates to the field of hydrogen production by alkaline water electrolysis, in particular to a metal electrode frame, an electrolysis unit, an electrolysis bath and an assembly jig for hydrogen production by water electrolysis.
Background
At present, a filter-press type bipolar type electrolytic cell structure is generally adopted in the field of hydrogen production by alkaline water electrolysis. The electrolytic cell structure comprises a plurality of electrolytic units, wherein the electrolytic units are mainly formed by welding a main pole plate and a pole frame through two welding processes, in order to ensure the sealing property between the main pole plate and the pole frame and avoid the thermal deformation of the welding position of the main pole plate and the pole frame, a tongue plate is usually arranged between the main pole plate and the pole frame as a connecting piece (see the attached drawing 1) in the related art, the thermal deformation of the welding position of the main pole plate and the pole frame can be avoided by the tongue plate, so that the main pole plate and the pole frame cannot be damaged in the installation process, but the tongue plate needs to be additionally processed on the pole frame, the processing precision is greatly influenced by processing machinery, and the production efficiency of the pole frame is reduced. Meanwhile, the tongue plate not only increases the weight of the pole frame, but also occupies the area of the pole piece, and the area of the pole piece is reduced, so that the current density in the electrolytic cell is increased, and the electrolytic effect is further influenced.
SUMMERY OF THE UTILITY MODEL
A first object of the present disclosure is to provide a metal pole frame for hydrogen production by electrolysis of water, to at least partially solve the problems occurring in the related art.
In order to achieve the above object, the present disclosure provides a metal pole frame for hydrogen production by electrolysis of water, the pole frame is annular, an inner circumferential surface of the pole frame is used for directly connecting with a pole piece, a first step portion for mounting a separator and a second step portion for mounting a first electrode are provided on a first side surface of the pole frame, the height of the first side surface of the pole frame gradually decreases from outside to inside, and a third step portion for mounting a second electrode is provided on a second side surface of the pole frame.
Optionally, the first side surface and the second side surface are further provided with a protruding portion and a fourth step portion, the protruding portion is arranged at the peripheral edge of the first side surface and the second side surface and is used for enabling two adjacent pole frames to be in sealing abutment; the fourth step portion is arranged between the bulge portion on the first side face and the first step portion and between the bulge portion on the second side face and the second step portion, and is used for installing a sealing ring.
Optionally, be provided with feed liquor hole and play liquid hole on the utmost point frame, the both sides of pole piece with the interior inner peripheral space of utmost point frame is formed with the stock solution chamber that is used for storing electrolyte, go out the liquid hole with the feed liquor hole respectively with stock solution chamber intercommunication.
Optionally, the liquid outlet hole and the liquid inlet hole are radially and symmetrically arranged with respect to the pole frame 1, and the liquid outlet hole 18 and the liquid inlet hole 17 are respectively provided in plurality.
Optionally, the outer surface of the pole frame is provided with a nickel layer.
The second purpose of the present disclosure is to provide an electrolysis unit, which includes a pole frame and a pole piece, wherein the pole frame is a metal pole frame for hydrogen production through water electrolysis, the pole piece is disposed in an inner circumferential space of the pole frame, and the pole piece is directly connected with an inner circumferential surface of the pole frame into a whole.
Optionally, the pole piece is connected with the pole frame in a laser welding mode, the weld joint is a fillet weld or a butt weld, and the weld joint height of the fillet weld is 0.1mm-2mm; the height of the butt welding seam is 0.1mm-2mm, and the assembly gap is 0.05 mm-1 mm.
It is a third object of the present disclosure to provide an electrolytic cell comprising a plurality of electrolytic cells stacked and sealed in an arrangement, the electrolytic cells being any one of the above electrolytic cells.
A fourth object of the present disclosure is to provide an assembly jig for assembling the electrolytic unit of any one of the above, wherein the assembly jig is disc-shaped and includes a first bearing portion for bearing a pole piece and a second bearing portion disposed at a peripheral edge of the first bearing portion and having a height reduced relative to the first bearing portion, and the second bearing portion cooperates with the pole frame to limit a horizontal displacement of the pole frame.
Optionally, the height difference between the first bearing part and the second bearing part is configured such that the pole piece is located at a middle position in a height direction of the inner peripheral surface of the pole frame.
Through above-mentioned technical scheme, the inner peripheral surface of utmost point frame is used for directly being connected with the pole piece, can avoid spending the time on the processing hyoplastron during the production of utmost point frame, improves the production efficiency of utmost point frame, and utmost point frame and pole piece lug connection have still improved the area of the pole piece that can set up in the utmost point frame, improve the electrolysis efficiency among the electrolysis process. Meanwhile, the processing precision of the tongue plate is greatly influenced by processing machinery, so that the direct connection of the pole frame and the pole piece can more effectively ensure the position relation between the pole frame and the pole piece and the sealing property of the connection part. A plurality of step portions have been seted up respectively to the side of utmost point frame, and the step portion has further lightened the weight of utmost point frame when can holding the diaphragm and the electrode that the electrolysis needs, the location and the installation of the diaphragm of being convenient for and electrode.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic view of a structure of an electrolysis cell in the related art;
FIG. 2 is a schematic diagram of the structure of an electrolysis cell provided in an exemplary embodiment of the present disclosure;
FIGS. 3 and 4 are sectional views taken along line X in FIG. 1;
FIG. 5 is an enlarged view of portion I of FIG. 3;
FIG. 6 is an enlarged view of section II of FIG. 4;
fig. 7 is a schematic structural diagram of an assembly jig provided in an exemplary embodiment of the present disclosure in use.
Description of the reference numerals
1-pole frame, 11-first side face, 12-first step portion, 13-second step portion, 14-second side face, 15-third step portion, 16-projection portion, 17-liquid inlet hole, 18-liquid outlet hole, 19-liquid storage cavity, 2-pole piece, 3-welding seam, 4-assembly jig, 41-first bearing portion, 42-second bearing portion, 5-fourth step portion and 6-tongue plate.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, the use of the directional terms such as "upper" and "lower" generally refer to the directions of the relevant components in the actual use state, and refer to the drawing directions of fig. 3 and 4. "inner and outer" refer to the inner and outer of the respective component profiles. In addition, when the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements, unless otherwise indicated. The terms "first," "second," and the like, as used in this disclosure, are intended to distinguish one element from another, and not necessarily for sequential or importance.
The present disclosure provides a metal polar frame 1 for hydrogen production by water electrolysis, as shown in fig. 2 to 7, the polar frame 1 is annular, and the inner circumferential surface of the polar frame 1 is used for directly connecting with a pole piece 2, for example, the pole piece 2 is welded on the inner circumferential surface of the polar frame 1 in a laser welding manner. The first side 11 of the pole frame 1 is provided with a first step 12 for mounting the separator and a second step 13 for mounting the first electrode, with decreasing height from the outside inwards (i.e. radially inwards from the annular outer circumference), and the second side 14 of the pole frame 1 is provided with a third step 15 for mounting the second electrode. Specifically, the separator can block gas without blocking electrolyte, when the first electrode is a positive electrode, the second electrode needs to be a negative electrode, otherwise, it needs to be ensured that the polarities of the first electrode and the second electrode are opposite, and for convenience of description, the upper side in the drawing direction of fig. 3 and 4 is referred to as a first side, and the lower side in the drawing direction is referred to as a second side.
Through above-mentioned technical scheme, the inner peripheral surface of utmost point frame 1 is used for directly being connected with pole piece 2, can avoid spending the time on processing hyoplastron 6 during the production of utmost point frame 1, improves the production efficiency of utmost point frame 1, and utmost point frame 1 and pole piece 2 lug connection have still improved the area of pole piece 2 that can set up in the utmost point frame 1, improve the electrolysis efficiency among the electrolysis process. Meanwhile, the processing precision of the tongue plate 6 is greatly influenced by processing machinery, so that the direct connection between the pole frame 1 and the pole piece 2 can more effectively ensure the position relation between the pole frame 1 and the pole piece 2 and the sealing performance of the connection part. A plurality of step portions have been seted up respectively to the side of utmost point frame 1, and the step portion has further lightened utmost point frame 1's weight when can holding the diaphragm and the electrode that the electrolysis needs, the location and the installation of the diaphragm of being convenient for and electrode.
Furthermore, the first side surface 11 and the second side surface 14 are further provided with a protruding portion 16 and a fourth step portion 5, and the protruding portion 16 is arranged at the peripheral edge of the first side surface 11 and the second side surface 14 and is used for enabling two adjacent pole frames 1 to be in sealing and abutting joint; the fourth step 5 is provided between the projection 16 on the first side 14 and the first step 12 and between the projection 16 on the second side 14 and the second step 13 for mounting the seal ring. Like this when a plurality of utmost point frames 1 need range upon range of use, adjacent utmost point frame 1 can not receive the influence of diaphragm and electrode thickness, the second side 14 of the utmost point frame 1 that lies in the top can pass through bulge 16 with the first side 11 of the utmost point frame 1 that lies in the below and laminate each other sealed, the electrolyte that has avoided utmost point frame 1 to produce the clearance and lead to when range upon range of after a plurality of utmost point frames 1 range upon range of fixed, and simultaneously, can be provided with arch and the recess (not shown in the figure) of being convenient for location installation on bulge 16, for example can seted up the arch on utmost point frame 1 first side 11, set up on the second side 14 can with protruding complex recess, protruding and recess mutually support like this and make utmost point frame 1 more convenient location when range upon range of setting. Alternatively, the outer surface of the protruding part 16 may be a polished surface, and the outer surface of the protruding part 16 includes the outer peripheral surface and the side surface of the protruding part 16, so that when the protruding parts 16 are fitted to each other, a gap is smaller, and the risk of leakage of the electrolyte is further reduced. The seal ring is attached to the fourth stepped portion 5, which can further improve the sealing property when the plurality of pole frames 1 are stacked for use. Corrosion-resistant elastic material can be selected to the sealing washer, because electrolyte is alkaline, and corrosion-resistant material can improve the life of sealing washer to elastic material makes the sealing washer can avoid the appearance in space because elasticity kick-backs when receiving the extrusion, guarantees the result of use of sealing washer.
In this disclosure, a liquid inlet hole 17 and a liquid outlet hole 18 are formed in the pole frame 1, a liquid storage cavity 19 for storing electrolyte is formed in the two side surfaces of the pole piece 2 and the inner peripheral space of the pole frame 1, and the liquid outlet hole 18 and the liquid inlet hole 17 are respectively communicated with the liquid storage cavity 19. Wherein, stock solution chamber 19 is used for holding electrolyte, goes out liquid hole 18 and feed liquor hole 17 respectively with stock solution chamber 19 intercommunication, feed liquor hole 17 can be to supplying electrolyte in the stock solution chamber 19 and retrieving the oxygen that the electrolysis in-process produced, goes out liquid hole 18 simultaneously and can collect the hydrogen that produces in the electrolysis operation and retrieve the electrolyte that is passed by the electrolysis. Go out liquid hole 18 and feed liquor hole 17 when guaranteeing and stock solution chamber 19 intercommunication, can also specifically refer to the setting of fig. 2, it link up utmost point frame 1 from top to bottom to go out liquid hole 18 and feed liquor hole 17 promptly, a plurality of utmost point frames 1 are when range upon range of setting like this, the stock solution chamber 19 of a plurality of utmost point frames 1 can communicate each other, can supply electrolyte and retrieve the oxygen that the electrolysis in-process produced in to the stock solution chamber 19 of a plurality of utmost point frames 1 simultaneously through feed liquor hole 17, go out liquid hole 18 also can collect the hydrogen that the stock solution chamber 19 of a plurality of utmost point frames 1 produced in the electrolysis operation simultaneously and retrieve the electrolyte that has been electrolyzed. Meanwhile, the liquid outlet holes 18 and the liquid inlet holes 17 are radially and symmetrically arranged relative to the polar frame 1, and the liquid outlet holes 18 and the liquid inlet holes 17 can be respectively provided with a plurality of holes. A plurality of outlet holes 18 and inlet holes 17 can be operated simultaneously to further increase the electrolysis efficiency.
The outer surface of the pole frame 1 may be provided with a nickel layer. For example, in the operation of producing hydrogen by electrolyzing alkaline water, a lot of alkaline ions are generated, and these alkaline ions corrode the pole frame 1, and the service life of the pole frame 1 is reduced, so that a nickel layer can be arranged on the outer surface of the pole frame 1, so as to avoid the corrosion of the alkaline ions on the outer surface of the pole frame 1, and simultaneously, the nickel layer can also improve the wear resistance of the outer surface of the pole frame 1, and improve the service life and the service strength of the pole frame 1. The nickel layer can be arranged in a plating mode so as to ensure the uniformity and firmness of the arrangement of the nickel layer.
The second purpose of this disclosure is to provide an electrolysis unit, including pole frame 1 and pole piece 2, pole piece 2 sets up in the inner peripheral space of pole frame 1, and pole piece 2 and the inner peripheral surface direct connection of pole frame 1 are as an organic whole. The pole frame 1 is the metal pole frame 1 for electrolyzing water to produce hydrogen in any of the above embodiments, and has all the beneficial effects, which are not described herein again.
In some embodiments, the pole piece 2 may be connected to the pole frame 1 by laser welding. Laser welding is fast efficient to be applicable to multiple environment, simultaneously, laser welding is mainly with the deep transmission of energy toward the work piece, and less lateral diffusion, and consequently the welding seam 3 that laser welding produced is less and the shape also better control, need not again carry out orthopedic and secondary operation that is used for guaranteeing the welding seam intensity to utmost point frame 1 and pole piece 2 after the laser welding, compare in two guarantor's welding's mode can guarantee the leakproofness between utmost point frame 1 and the pole piece 2 and avoid the heat altered shape of utmost point frame 1 and pole piece 2 welding department.
The welding seam 3 can be a fillet weld or a butt weld, specifically refer to fig. 5 and 6, the welding seam 3 shown in fig. 5 is a fillet weld, and the shape of the welding seam is generally an isosceles right triangle, so that two right-angle sides of the fillet weld can be connected with the pole frame 1 and the pole piece 2 by the same size, the stress of the fillet weld is ensured to be more uniform, the laser welding strength is ensured, and meanwhile, a gap is not generated between the pole piece 2 and the pole frame 1, specifically, the height of the fillet weld is represented by a straight line distance a in fig. 5 and can be 0.1mm-2mm. In addition, the weld 3 shown in fig. 6 is a butt weld, in the butt weld, the height of the weld represents the part of the upper and lower ends of the weld 3 beyond the upper and lower sides of the pole piece 2, and the pair-up gap represents the distance between the inner circumferential surfaces of the pole frames 1 on the outer circumferential surface of the pole piece 2, specifically, the height of the butt weld is represented by a straight line distance a in fig. 6 and may be 0.1mm-2mm, and the pair-up gap of the butt weld is represented by a straight line distance B in fig. 6 and may be 0.05 mm-1 mm. Therefore, no matter how the thickness of the pole piece 2 is changed, the installation conditions of the pole frame 1 and the pole piece 2 can be met, and the size of the welding seam 3 does not influence the electrolysis operation.
A third object of the present disclosure is to provide an electrolytic cell, which includes a plurality of stacked and sealed electrolytic units, wherein the electrolytic unit is the electrolytic unit of any one of the above embodiments, and has all the advantages thereof, and further description is omitted here.
A fourth objective of the present disclosure is to provide an assembly fixture 4, configured to assemble the electrolysis unit according to any one of the above embodiments, and having all the advantages thereof, which will not be described herein again, where the assembly fixture 4 is in a shape of a circular disc, and includes a first bearing portion 41 for bearing the pole piece 2 and a second bearing portion 42 disposed at a peripheral edge of the first bearing portion 41 and having a height lower than that of the first bearing portion 41, and the second bearing portion 42 cooperates with the pole frame 1 to limit the horizontal displacement of the pole frame 1. First bearing part 41 can support pole piece 2 to the displacement of utmost point frame 1 is injectd to second bearing part 42, after utmost point frame 1 is fixed, uses welding seam 3 as fillet weld 3 for example, and the periphery of pole piece 2 can with the interior circumference transitional fit of utmost point frame 1 this moment, uses welding seam 3 as butt weld for example, can have the recess of a fixed pole piece 2 in the surface design of first bearing part 41 to make utmost point frame 1 and pole piece 2 can not misplace in welding process.
The height difference between the first receiving portion 41 and the second receiving portion 42 is arranged such that the pole piece 2 is located at an intermediate position in the height direction of the inner peripheral surface of the pole frame 1. The electrolyte volume that can hold in two stock solution chambeies 19 of pole piece 2 upper and lower direction is the same like this, makes things convenient for the range upon range of sealed installation of a plurality of electrolysis unit in order to form the electrolysis trough, the electrolysis operation of being more convenient for goes on.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. The metal pole frame for hydrogen production through water electrolysis is characterized in that the pole frame is annular, the inner circumferential surface of the pole frame is directly connected with a pole piece, a first step portion for installing a diaphragm and a second step portion for installing a first electrode are arranged on the first side surface of the pole frame in a manner that the height of the first step portion is gradually reduced from outside to inside, and a third step portion for installing a second electrode is arranged on the second side surface of the pole frame.
2. The metal polar frame for hydrogen production through water electrolysis according to claim 1, wherein the first side face and the second side face are further provided with a bulge and a fourth step, the bulge is arranged on the peripheral edge of the first side face and the second side face and used for enabling two adjacent polar frames to be in sealing abutment; the fourth step portion is arranged between the bulge portion on the first side face and the first step portion and between the bulge portion on the second side face and the second step portion, and is used for installing a sealing ring.
3. The metal pole frame for hydrogen production through water electrolysis according to claim 1, wherein the pole frame is provided with a liquid inlet and a liquid outlet, two side surfaces of the pole piece and the inner peripheral space of the pole frame are provided with liquid storage cavities for storing electrolyte, and the liquid outlet and the liquid inlet are respectively communicated with the liquid storage cavities.
4. The metal pole frame for hydrogen production through water electrolysis according to claim 3, wherein the liquid outlet holes and the liquid inlet holes are radially and symmetrically arranged relative to the pole frame, and the liquid outlet holes and the liquid inlet holes are respectively provided in plurality.
5. The metal pole frame for electrolyzing water to produce hydrogen as recited in claim 1, wherein an outer surface of the pole frame is provided with a nickel layer.
6. An electrolysis unit, characterized in that the electrolysis unit comprises a pole frame and a pole piece, wherein the pole frame is the metal pole frame for electrolyzing water to produce hydrogen according to any one of claims 1-5, the pole piece is arranged in the inner peripheral space of the pole frame, and the pole piece and the inner peripheral surface of the pole frame are directly connected into a whole.
7. The electrolysis unit according to claim 6, wherein the pole pieces are connected with the pole frame by means of laser welding, the weld seam on the pole pieces is a fillet weld or a butt weld seam, and the weld seam height of the fillet weld seam is 0.1mm-2mm; the height of the butt welding seam is 0.1mm-2mm, and the assembly gap is 0.05 mm-1 mm.
8. An electrolytic cell comprising a plurality of electrolytic cells arranged in a sealed manner in a stack, said electrolytic cells being as claimed in claim 6 or 7.
9. An assembly jig for assembling the electrolytic cell according to claim 6 or 7, wherein the assembly jig is disc-shaped and comprises a first bearing part for bearing a pole piece and a second bearing part which is arranged on the periphery of the first bearing part and has a height reduced relative to the first bearing part, and the second bearing part is used for cooperating with the pole frame to limit the horizontal displacement of the pole frame.
10. The assembly jig according to claim 9, wherein a height difference between the first bearing portion and the second bearing portion is configured such that the pole piece is located at a middle position in a height direction of an inner peripheral surface of the pole frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222663899.8U CN218842350U (en) | 2022-10-10 | 2022-10-10 | Metal pole frame, electrolysis unit, electrolytic tank and assembly jig for producing hydrogen by electrolyzing water |
| PCT/CN2023/116802 WO2024078190A1 (en) | 2022-10-10 | 2023-09-04 | Metal electrode frame for electrolyzing water to produce hydrogen, electrolysis units, electrolytic cell and assembly jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222663899.8U CN218842350U (en) | 2022-10-10 | 2022-10-10 | Metal pole frame, electrolysis unit, electrolytic tank and assembly jig for producing hydrogen by electrolyzing water |
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| CN218842350U true CN218842350U (en) | 2023-04-11 |
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| CN202222663899.8U Active CN218842350U (en) | 2022-10-10 | 2022-10-10 | Metal pole frame, electrolysis unit, electrolytic tank and assembly jig for producing hydrogen by electrolyzing water |
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| WO (1) | WO2024078190A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024078190A1 (en) * | 2022-10-10 | 2024-04-18 | 无锡隆基氢能科技有限公司 | Metal electrode frame for electrolyzing water to produce hydrogen, electrolysis units, electrolytic cell and assembly jig |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2900553Y (en) * | 2005-11-12 | 2007-05-16 | 中国船舶重工集团公司第七一八研究所 | Novel electrolytic bath |
| CN202039132U (en) * | 2011-03-16 | 2011-11-16 | 扬州中电制氢设备有限公司 | Electrolysis bath |
| CN106148999B (en) * | 2015-04-14 | 2018-08-28 | 苏州竞立制氢设备有限公司 | A kind of non-contact resistance electrode |
| CN205702792U (en) * | 2016-06-23 | 2016-11-23 | 天津市大陆制氢设备有限公司 | A kind of polar plate of water electrolyzer is welded device |
| CN211972465U (en) * | 2019-10-30 | 2020-11-20 | 考克利尔竞立(苏州)氢能科技有限公司 | Water electrolysis bath polar plate |
| CN216891250U (en) * | 2021-07-23 | 2022-07-05 | 无锡隆基氢能科技有限公司 | Water electrolysis hydrogen production electrode and water electrolysis hydrogen production electrolytic cell |
| CN113755855A (en) * | 2021-09-09 | 2021-12-07 | 中国船舶重工集团公司第七一八研究所 | Electrolytic cell polar frame and electrolytic cell |
| CN113981480A (en) * | 2021-09-30 | 2022-01-28 | 中国船舶重工集团公司第七一八研究所 | Electrolytic bath polar plate |
| CN114277395B (en) * | 2021-11-30 | 2023-10-03 | 中国华能集团清洁能源技术研究院有限公司 | Novel electrode unit with guiding wedge-shaped structure, electrolysis unit and application |
| CN218842350U (en) * | 2022-10-10 | 2023-04-11 | 无锡隆基氢能科技有限公司 | Metal pole frame, electrolysis unit, electrolytic tank and assembly jig for producing hydrogen by electrolyzing water |
| CN218951510U (en) * | 2022-12-05 | 2023-05-02 | 无锡隆基氢能科技有限公司 | Electrolytic tank for producing hydrogen by water electrolysis and water electrolysis hydrogen production equipment |
-
2022
- 2022-10-10 CN CN202222663899.8U patent/CN218842350U/en active Active
-
2023
- 2023-09-04 WO PCT/CN2023/116802 patent/WO2024078190A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024078190A1 (en) * | 2022-10-10 | 2024-04-18 | 无锡隆基氢能科技有限公司 | Metal electrode frame for electrolyzing water to produce hydrogen, electrolysis units, electrolytic cell and assembly jig |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024078190A1 (en) | 2024-04-18 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231101 Address after: C0101-1F420, No. 48 Keji Road, High tech Zone, Xi'an City, Shaanxi Province, 710075 Patentee after: Xi'an Longji Hydrogen Energy Technology Co.,Ltd. Address before: No. 102, Ximei Road, Xinwu District, Wuxi City, Jiangsu Province, 214115 Patentee before: Wuxi Longji Hydrogen Energy Technology Co.,Ltd. |