CN117210840A - Reactor core module and electrolytic hydrogen production electrolytic tank - Google Patents
Reactor core module and electrolytic hydrogen production electrolytic tank Download PDFInfo
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- CN117210840A CN117210840A CN202311383037.2A CN202311383037A CN117210840A CN 117210840 A CN117210840 A CN 117210840A CN 202311383037 A CN202311383037 A CN 202311383037A CN 117210840 A CN117210840 A CN 117210840A
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- end plate
- separator
- hydrogen production
- core module
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 65
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 65
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 63
- 238000005192 partition Methods 0.000 claims abstract description 64
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 26
- 239000004020 conductor Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000009826 distribution Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000012528 membrane Substances 0.000 description 7
- 238000007689 inspection Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010292 electrical insulation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to the technical field of water electrolysis hydrogen production, and provides a reactor core module and an electrolysis hydrogen production electrolytic tank, wherein the reactor core module comprises: a first separator; the second baffle is arranged at intervals with the first baffle; a core body including a plurality of core body units stacked between a first separator and a second separator, a plurality of electrolysis chambers being provided in the core body; the tensioning structure is used for connecting the first partition plate and the second partition plate, so that the first partition plate and the second partition plate compress the core body; by the arrangement, the stacking quantity of the core units in a single stacking structure can be reduced, and stacking is simpler and more convenient; meanwhile, the number of the core units in the single stacking structure is reduced, so that the transmission and distribution of the press-fit force are more uniform, the electrical connection performance, the sealing performance and the like between the core units are improved, and the working performance of the electrolytic hydrogen production electrolytic tank is ensured; in addition, the quick maintenance of the whole reactor core can be conveniently realized, and meanwhile, the electrolytic hydrogen production electrolytic tanks with different powers can be conveniently assembled, so that the reactor has higher flexibility.
Description
Technical Field
The invention relates to the technical field of water electrolysis hydrogen production, in particular to a reactor core module and an electrolytic hydrogen production electrolytic tank.
Background
Renewable energy power generation has the characteristics of intermittence, volatility and randomness, the problem of grid-connected digestion of electric energy is increasingly prominent, hydrogen is one of the cleanest energy sources at present as a carbon-free energy carrier, and is considered to be the best means for storing renewable and intermittent power sources due to the extremely high energy conversion rate. Proton Exchange Membrane (PEM) water electrolysis hydrogen production is one of the current mature hydrogen production technologies, and the PEM water electrolysis hydrogen production technology uses a proton exchange membrane as a solid electrolyte, and electrolyzes water into hydrogen and oxygen under the action of direct current.
In the related art, the core of the PEM electrolytic tank is formed by alternately stacking and then pressing sheet-shaped members such as bipolar plates, membrane electrodes, runner plates and sealing assemblies.
However, as the specification of the electrolytic tank is bigger and bigger, the number of stacked chips is also bigger and bigger, and the stacking difficulty of the electric core is bigger and bigger, and in addition, as the number of stacked chips is increased, the transmission and distribution uniformity of the press-fitting force in the press-fitting process are difficult to ensure.
Disclosure of Invention
The invention provides a reactor core module and an electrolytic hydrogen production electrolytic tank, which are used for solving the problems that the stacking difficulty is high and the transmission and distribution uniformity of press fitting force in the press fitting process is difficult to ensure due to the increase of the number of stacked chips in the prior art, and have the advantages of more convenient stacking and more uniform transmission and distribution of the press fitting force.
The present invention provides a core module comprising:
a first separator;
the second partition board is arranged at intervals with the first partition board;
the core body is arranged between the first partition board and the second partition board, and a plurality of electrolysis chambers are arranged in the core body;
and the tensioning structure is used for connecting the first partition plate and the second partition plate, so that the first partition plate and the second partition plate compress the core body.
According to the present invention, there is provided a core module, the tension structure comprising:
a connecting part, one side of which is attached to the side surface of the first partition plate, and the other opposite side of which is attached to the side surface of the second partition plate;
and the connecting piece is used for connecting and fixing the connecting part and the parts, which are attached to the first partition plate and the second partition plate.
According to the reactor core module provided by the invention, the first baffle plate and the second baffle plate are made of conductive materials; the connection portion is electrically insulated from the first separator and the second separator.
According to the reactor core module provided by the invention, the connecting part is made of insulating materials.
According to the present invention, there is provided a core module, the connection member includes a screw or a rivet.
According to the reactor core module provided by the invention, the first partition plate and the second partition plate are provided with the gas-liquid inlets and outlets corresponding to each other in position, and the gas-liquid inlets and outlets are communicated with the electrolysis chamber of the core body.
According to the reactor core module provided by the invention, the first partition plate and the second partition plate are provided with the sealing grooves around the gas-liquid inlet and outlet for embedding the sealing rings.
The invention also provides an electrolytic hydrogen production electrolytic tank, which comprises at least two reactor core modules; a plurality of the core modules are electrically connected in series.
According to the electrolytic hydrogen production electrolytic tank provided by the invention, the first partition plate and the second partition plate of the reactor core module are made of conductive materials, and the first partition plate and the second partition plate of the same reactor core module are electrically insulated;
the reactor core modules are stacked, wherein a first baffle plate of one reactor core module is abutted with a second baffle plate of the adjacent reactor core module.
The electrolytic hydrogen production electrolyzer provided by the invention further comprises a fastening assembly, and a plurality of reactor core modules are mutually pressed by the fastening assembly.
According to the present invention there is provided an electrolytic hydrogen production cell, the fastening assembly comprising:
a first end plate;
a second end plate disposed at a distance from the first end plate, a plurality of core modules being stacked between the first end plate and the second end plate;
and the locking piece is used for connecting the first end plate and the second end plate, so that the first end plate and the second end plate compress a plurality of reactor core modules.
According to the invention, the locking piece comprises:
a connecting rod for sequentially passing through the first end plate and the second end plate;
the limiting parts are respectively connected to two ends of the connecting rod, one limiting part is used for being abutted with the first end plate, and the other limiting part is used for being abutted with the second end plate;
at least one of the two limiting parts is in threaded connection with the connecting rod.
According to the electrolytic hydrogen production electrolytic tank provided by the invention, the first partition plate and the second partition plate are provided with the gas-liquid inlet and outlet which are corresponding in position, and the gas-liquid inlet and outlet are communicated with the electrolytic chamber of the core body;
and the gas-liquid inlet and outlet on the first partition plate of one reactor core module is correspondingly communicated with the gas-liquid inlet and outlet on the second partition plate of the other reactor core module.
The electrolytic hydrogen production electrolyzer provided by the invention further comprises an electric connecting piece, wherein the electric connecting piece is used for electrically connecting the first partition plate and the second partition plate adjacent to the reactor core module.
According to the invention, the electric connector comprises:
one side of the connector is attached to the side face of the first partition plate of one reactor core module, and the opposite side is attached to the side face of the second partition plate of the adjacent reactor core module;
and the fixing piece is used for connecting and fixing the joint body and the parts of the first partition plate and the second partition plate, which are attached.
According to the electrolytic hydrogen production electrolytic tank provided by the invention, the fixing piece comprises a screw.
According to the reactor core module and the electrolytic hydrogen production electrolytic tank, the reactor core in the high-power electrolytic hydrogen production electrolytic tank is decomposed into the plurality of reactor core modules, so that the total power of the electrolytic hydrogen production electrolytic tank is ensured, and meanwhile, the stacking quantity of the core body units in a single stacking structure is reduced, and the stacking is simpler and more convenient; meanwhile, the number of the core units in the single stacking structure is reduced, so that the transmission and distribution of the press-fit force are more uniform, the electrical connection performance, the sealing performance and the like between the core units are improved, and the working performance of the electrolytic hydrogen production electrolytic tank is ensured;
in addition, the reactor core of the electrolytic hydrogen production electrolytic tank is formed by connecting a plurality of reactor core modules in series, when a certain electrolytic cell fails, the voltage inspection module can be used for rapidly positioning the failed cell, and the reactor core module where the voltage inspection module is positioned is disassembled and replaced, so that the rapid maintenance of the whole reactor core can be conveniently realized without affecting the use of other reactor core modules; and through the reactor core modules with different numbers connected in series, the electrolytic hydrogen production electrolytic tank with different powers can be conveniently assembled so as to meet the requirements of different application scenes, and the reactor has higher flexibility.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a core module provided by an embodiment of the present invention;
FIG. 2 is a schematic structural view of an electrolytic hydrogen production cell provided by an embodiment of the invention.
Reference numerals:
1. a first separator; 2. a second separator; 3. a core; 4. tensioning the structure; 40. a connection part; 41. a connecting piece; 5. a gas-liquid inlet and outlet; 50. sealing grooves; 6. a fastening assembly; 60. a first end plate; 61. a second end plate; 62. a locking member; 620. a connecting rod; 621. a limit part; 7. an insulating pad layer; 8. a current collecting plate; 9. an electrical connection; 90. a connecting body; 91. and a fixing piece.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to facilitate understanding of the reactor core module and the electrolytic hydrogen production electrolytic tank provided by the invention, firstly, the application background is described, the renewable energy source power generation such as solar energy, wind energy and the like has the characteristics of intermittence, volatility and randomness, so that the problem of grid connection and digestion of renewable electric energy is increasingly prominent, therefore, the renewable electric energy needs to be converted into other energy for storage, and hydrogen is one of the cleanest energy sources at present as a carbon-free energy carrier, and has extremely high energy conversion rate, so that the reactor core module and the electrolytic hydrogen production electrolytic tank are the best means for storing the renewable electric energy.
The proton exchange membrane is used as solid electrolyte to electrolyze water into hydrogen and oxygen under the action of direct current; in the related art, the reactor core of the PEM electrolytic tank is formed by alternately stacking sheet structures such as bipolar plates, membrane electrodes, runner plates, sealing assemblies and the like, and then pressing and fastening the sheet structures.
However, as the size of the electrolytic tank is larger and larger, the stacking difficulty is increased, and as the stacking difficulty is increased, the transmission and distribution uniformity of the press-fitting force in the press-fitting process are difficult to control, so that the electric connection performance, the sealing performance and the like between the sheet-shaped members are difficult to ensure, and the working performance of the electrolytic tank is difficult to ensure.
Based on the reasons, the reactor core module and the electrolytic hydrogen production electrolytic tank provided by the invention have the advantages of more convenient stacking and more uniform transmission and distribution of press-fitting force, so that the working performance of the electrolytic tank is ensured.
The core module and the electrolytic hydrogen production electrolyzer of the present invention are described below with reference to FIGS. 1-2.
Referring to fig. 1 and 2, an electrolytic hydrogen production electrolyzer comprises at least two core modules electrically connected in series; the reactor core module comprises a first baffle plate 1, a second baffle plate 2, a core body 3 and a tensioning structure 4; wherein the first clapboard 1 and the second clapboard 2 are arranged at intervals; the core 3 comprises a plurality of core units stacked between the first separator 1 and the second separator 2, and a plurality of electrolysis chambers are arranged in the core 3; the tensioning structure 4 is used to connect the first separator 1 and the second separator 2, so that the first separator 1 and the second separator 2 compress the core 3.
During actual production, firstly, manufacturing a reactor core module, and then connecting a plurality of reactor core modules in series electrically to form an electrolytic hydrogen production electrolytic tank as a whole; when the reactor core module is manufactured, stacking a certain number of core units between the first baffle plates 1 and the second baffle plates 2 to form a core body 3, compacting the core units by using the first baffle plates 1 and the second baffle plates 2, and then connecting the first baffle plates 1 and the second baffle plates 2 through the tensioning structure 4 to ensure that the core body 3 is compacted between the first baffle plates 1 and the second baffle plates 2; the number of core units in the core 3 can be controlled to control the power of a single core module according to the actual production requirement; compared with the related art, the reactor core in the high-power electrolytic hydrogen production electrolytic tank is decomposed into a plurality of reactor core modules, so that the total power of the electrolytic hydrogen production electrolytic tank is ensured, and meanwhile, the stacking quantity of the core body units in a single stacking structure is reduced, and the stacking is simpler and more convenient; meanwhile, the number of the core units in the single stacking structure is reduced, so that the transmission and distribution of the press-fit force are more uniform, the electrical connection performance and sealing performance among the core units are improved, and the working performance of the electrolytic hydrogen production electrolytic tank is ensured.
In addition, in the related art, the stacking structure of the reactor core in the high-power electrolytic hydrogen production electrolytic tank is complex, the fault positioning is difficult, and when a single electrolytic chamber fails, the whole reactor core needs to be disassembled, so that the maintenance is inconvenient and the cost is high; the reactor core of the high-power electrolytic hydrogen production electrolytic tank is formed by connecting a plurality of reactor core modules in series, when a certain electrolytic cell fails, the failed cell can be quickly positioned through the voltage inspection module, and the reactor core module where the voltage inspection module is positioned is disassembled and replaced, so that the quick maintenance of the whole reactor core can be conveniently realized without affecting the use of other reactor core modules; and through the reactor core modules with different numbers connected in series, the electrolytic hydrogen production electrolytic tank with different powers can be conveniently assembled so as to meet the requirements of different application scenes, and the reactor has higher flexibility.
It should be noted that, the above-mentioned core unit may include a sheet structure such as a membrane electrode, a flow channel plate, a diffusion layer, and a sealing component, and by stacking and compacting different core units in a certain order, a functional module with an electrolysis chamber and having an electrolysis hydrogen production function is formed, the anode electrolysis chamber and the cathode electrolysis chamber are isolated by a proton exchange membrane, and are used for respectively generating oxygen and hydrogen, and the core 3 is a collection of at least one functional module; the core structure of the existing PEM hydrogen production electrolytic tank can be specifically referred to, the invention only breaks down the core in the high-power electrolytic hydrogen production electrolytic tank into a plurality of core modules, so as to reduce the number of core units in a single stacking structure, simplify the stacking process and make the transmission and distribution of the press-fit force more uniform, but the structure of the core and the arrangement sequence of each core unit in the core are not changed, so that the specific structure of the core 3 and the arrangement mode of each core unit in the core 3 are not repeated.
Referring to fig. 1, the tightening structure 4 includes a connection portion 40 and a connection member 41; wherein one side of the connecting portion 40 is attached to the side surface of the first separator 1, and the opposite side is attached to the side surface of the second separator 2; the connecting member 41 is used for fixing the portion of the connecting portion 40, which is attached to the first separator 1 and the second separator 2. The first separator 1 and the second separator 2 may be connected by the connection portion 40 and the connection member 41 so as to press the core 3 between the first separator 1 and the second separator 2.
Specifically, the connecting portion 40 has a long plate shape, and both sides thereof in the longitudinal direction are attached to the side surfaces of the first separator 1 and the second separator 2, respectively, and are connected to each other by a connecting member 41.
Of course, the above is only one of a plurality of alternative structures of the connecting portion 40, and in other embodiments, the connecting portion 40 may take other shapes and structures, as long as the connection between the first separator 1 and the second separator 2 can be achieved.
It can be understood that by adjusting the lengths of the opposite sides of the connecting portion 40, the distance between the first separator 1 and the second separator 2 can be adjusted, so as to be suitable for compacting cores 3 with different specifications; for example, when manufacturing a core module having a smaller power specification, the number of core units stacked between the first and second diaphragms 1 and 2 is small, and at this time, the first and second diaphragms 1 and 2 are connected using the relatively short connection parts 40 to compress the core 3; when manufacturing a core module having a large power specification, the number of core units stacked between the first and second separators 1 and 2 is large, and at this time, it is necessary to connect the first and second separators 1 and 2 using a relatively long connection portion 40 to compress the core 3.
Specifically, the connecting member 41 may be a screw, a rivet, or the like; however, the rivet is generally not detachably fixed, and in order to facilitate maintenance of the core module, in this embodiment, the connector 41 is a screw.
Specifically, in order to improve the reliability of the connection, the connection portion 40 is connected to the first separator 1 and the second separator 2 by a plurality of connection members 41.
Of course, the connection portion 40 includes, but is not limited to, the above-listed structures.
In another possible embodiment, the connection 41 comprises a threaded post and a nut; the threaded columns are fixedly connected to the side surfaces of the first partition board 1 and the second partition board 2, through holes are formed in two opposite sides of the connecting portion 40, when the first partition board 1 and the second partition board 2 are connected, the threaded columns on the first partition board 1 and the second partition board 2 penetrate through the holes in two sides of the connecting portion 40 respectively, and then are locked by nuts, so that the first partition board 1 and the second partition board 2 can be connected and fixed, and the first partition board 1 and the second partition board 2 can be tightly pressed on the core body 3.
In another possible embodiment, the connection 41 comprises a stud and a nut; specifically, the side protrusion of the first baffle 1 is provided with a first connecting plate, the side protrusion of the second baffle 2 is provided with a second connecting plate, two ends of the stud bolt respectively penetrate through the first connecting plate and the second connecting plate, the nuts are respectively connected to two ends of the stud bolt, and the two nuts are respectively abutted against the first connecting plate and the second connecting plate, so that the first baffle 1 and the second baffle 2 compress the core 3.
The first diaphragm 1 and the second diaphragm 2 of the core module are connected and fixed through a plurality of the above-mentioned tension structures 4 to ensure the reliability of the connection of the first diaphragm 1 and the second diaphragm 2.
Specifically, the first separator 1 and the second separator 2 are made of conductive materials, so that the first separator 1 and the second separator 2 respectively form the anode and the cathode of the reactor core module, the specific materials of the first separator 1 and the second separator 2 can be selected according to actual requirements, wherein the anode material can be a graphite material with stable chemical properties, and the cathode material can be a metal or an alloy.
Since the first and second diaphragms 1 and 2 form the anode and cathode of the core module, electrical insulation is required between the first and second diaphragms 1 and 2.
Specifically, the whole connecting portion 40 may be made of an insulating material, so as to achieve electrical insulation between the first separator 1 and the second separator 2; alternatively, the portion of the connection portion 40 between the first separator 1 and the second separator 2 is made of an insulating material, thereby achieving electrical insulation between the first separator 1 and the second separator 2; alternatively, an insulating structure such as an insulating paste or an insulating mat 7 is provided between the tension mechanism 4 and the first separator 1 and the second separator 2, so that the first separator 1 and the second separator 2 are electrically insulated.
In this embodiment, the connecting portion 40 is integrally made of an insulating material to ensure insulating properties between the first separator 1 and the second separator 2.
Based on the above, the series electrical connection of the plurality of core modules can be achieved by stacking the plurality of core modules, that is, the second separator plate 2 of one core module is attached to the first separator plate 1 of the adjacent core module.
Referring to fig. 1, the first separator 1 and the second separator 2 are provided with gas-liquid inlets and outlets 5 corresponding to each other, the gas-liquid inlets and outlets 5 are communicated with the electrolytic chamber of the core 3, and the gas-liquid inlets and outlets 5 are inlets for electrolyte and serve as outlets for hydrogen or oxygen.
Specifically, the four gas-liquid inlets and outlets 5 are arranged, the four gas-liquid inlets and outlets 5 are divided into one group according to functions, wherein one group of the gas-liquid inlets and outlets 5 are communicated with the anode electrolysis chamber of the reactor core module and serve as an electrolyte inlet and an oxygen outlet, and the other group of the gas-liquid inlets and outlets 5 are communicated with the cathode electrolysis chamber of the reactor core module and serve as a hydrogen outlet; when a plurality of reactor cores are stacked, the gas-liquid inlet and outlet 5 on the first baffle plate 1 of one reactor core module is correspondingly communicated with the gas-liquid inlet and outlet 5 on the second baffle plate 2 of the adjacent reactor core module.
Specifically, the first baffle plate 1 and the second baffle plate 2 are provided with sealing grooves 50 around the gas-liquid inlet and outlet 5 for embedding sealing rings, and the sealing performance of the connecting positions of the gas-liquid inlet and outlet 5 of the adjacent reactor core modules can be ensured through the sealing grooves 50 and the sealing rings.
The electrolytic hydrogen production electrolyzer provided by the invention is described below, and the electrolytic hydrogen production electrolyzer described below and the reactor core module described above can be referred to correspondingly.
Referring to fig. 1 and 2, an electrolytic hydrogen production electrolyzer comprises at least two core modules, wherein a plurality of core modules are stacked, namely, a first partition plate 1 of one core module is attached to a second partition plate 2 of an adjacent core module, so that series electric connection of the plurality of core modules is realized.
In the adjacent reactor core modules, the gas-liquid inlet and outlet 5 on the first partition board 1 of one reactor core module is correspondingly communicated with the gas-liquid inlet and outlet 5 on the second partition board 2 of the adjacent reactor core module, and a sealing ring is embedded in the sealing groove 50 at the periphery of the gas-liquid inlet and outlet 5 so as to ensure the sealing performance of the joint of the gas-liquid inlet and outlet 5 on the adjacent reactor core module.
In order to ensure the stability of the connection of the plurality of core modules, the electrolytic hydrogen production electrolyzer also comprises a fastening assembly 6, and the plurality of core modules are mutually pressed by the fastening assembly 6.
The fastening assembly 6 includes a first end plate 60, a second end plate 61, and a locking member 62; wherein the first end plate 60 and the second end plate 61 are disposed at intervals, and a plurality of core modules are stacked between the first end plate 60 and the second end plate 61; the locking member 62 is used to connect the first end plate 60 and the second end plate 61 such that the first end plate 60 and the second end plate 61 compress the plurality of core modules.
Specifically, the locking member 62 includes a link 620 and a pair of stopper portions 621; wherein the connecting rod 620 passes through the first end plate 60 and the second end plate 61 in sequence; a pair of limiting portions 621 are respectively connected to two ends of the connecting rod 620, wherein one limiting portion 621 is used for abutting against the first end plate 60, and the other limiting portion 621 is used for abutting against the second end plate 61; at least one of the two limiting parts 621 is screw-coupled with the connecting rod 620.
When the electrolytic hydrogen production electrolyzer is assembled, a plurality of core modules are stacked between the first end plate 60 and the second end plate 61, and then the connecting rods 620 are used to pass through the first end plate 60 and the second end plate 61, and the limiting parts 621 are screwed down so that the plurality of core modules are pressed between the first end plate 60 and the second end plate 61; when the power of the electrolytic hydrogen production electrolyzer needs to be regulated or one of the core modules is damaged, the limiting part 621 is disassembled, and then the connecting rod 620 is disassembled to separate the first end plate 60 and the second end plate 61, so that the increase, decrease and replacement of the core modules can be realized.
Specifically, the connecting rod 620 is a stud, and both the limiting portions 621 are screwed with the connecting rod 620.
After stacking a plurality of core modules, the anode and cathode of the two core modules at the first end and the second end need to be electrically insulated, i.e. the first partition plate 1 of the first core module and the second partition plate 2 of the second core module need to be electrically insulated.
Based on the above, one of the solutions is to make the locking member 62 of an insulating material, and the other is to make at least one of the first end plate 60 and the second end plate 61 of an insulating material.
However, the locking strength of the locking member 62 may be affected by the above two schemes, and thus, in the present embodiment, the insulation between the core module and the first and second diaphragms 1 and 2 is achieved by providing the insulation blanket 7 between the core module and the first and second end plates 60 and 61.
A current collecting plate 8 is arranged between the insulating cushion layer 7 and the reactor core module, the current collecting plate 8 is made of conductive materials and is provided with two current collecting plates, and the two current collecting plates 8 are respectively compressed with the first baffle plate 1 and the second baffle plate 2 of the two reactor core modules at the head end and the tail end and are used for connecting the anode and the cathode of a power supply.
In order to ensure the reliability of the electrical connection of the adjacent core modules, referring to fig. 2, an electrical connector 941 is provided between the adjacent core modules, the electrical connector 941 being for electrically connecting the first and second diaphragms 1 and 2 of the adjacent core modules.
Specifically, electrical connector 941 includes a connector body 90 and a securing member 91; wherein the connector 90 is plate-shaped and made of conductive material, one side of the connector 90 is attached to the side surface of the first partition plate 1 of one of the core modules, and the opposite side is attached to the side surface of the second partition plate 2 of the adjacent core module; the fixing member 91 is used for connecting and fixing the portion of the connecting body 90, which is attached to the first partition board 1 and the second partition board 2.
Specifically, the fixing member 91 includes a screw.
The novel innovation point of the invention is that: the reactor core in the high-power electrolytic hydrogen production electrolytic tank is decomposed into a plurality of reactor core modules, so that the total power of the electrolytic hydrogen production electrolytic tank is ensured, and meanwhile, the stacking quantity of the inner core units in a single stacking structure is reduced, and the stacking is simpler and more convenient; meanwhile, the number of the core units in the single stacking structure is reduced, so that the transmission and distribution of the press-fit force are more uniform, the electrical connection performance, the sealing performance and the like between the core units are improved, and the working performance of the electrolytic hydrogen production electrolytic tank is ensured;
in addition, in the related art, the stacking structure of the reactor core in the high-power electrolytic hydrogen production electrolytic tank is complex, the fault positioning is difficult, and when a single electrolytic chamber fails, the whole reactor core needs to be disassembled, so that the maintenance is inconvenient and the cost is high; the reactor core of the high-power electrolytic hydrogen production electrolytic tank is formed by connecting a plurality of reactor core modules in series, when a certain electrolytic cell fails, the failed cell can be quickly positioned through the voltage inspection module, and the reactor core module where the voltage inspection module is positioned is disassembled and replaced, so that the quick maintenance of the whole reactor core can be conveniently realized without affecting the use of other reactor core modules; and through the reactor core modules with different numbers connected in series, the electrolytic hydrogen production electrolytic tank with different powers can be conveniently assembled so as to meet the requirements of different application scenes, and the reactor has higher flexibility.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A core module, comprising:
a first separator (1);
a second partition board (2) arranged at intervals from the first partition board (1);
a core body (3) comprising a plurality of core body units stacked between the first separator (1) and the second separator (2), wherein a plurality of electrolysis chambers are arranged in the core body (3);
and the tensioning structure (4) is used for connecting the first partition board (1) and the second partition board (2) so that the first partition board (1) and the second partition board (2) compress the core body (3).
2. The core module of claim 1, characterized in that the tensioning structure (4) comprises:
a connecting part (40), one side of which is attached to the side surface of the first separator (1), and the other opposite side of which is attached to the side surface of the second separator (2);
and the connecting piece (41) is used for connecting and fixing the part of the connecting part (40) which is attached to the first partition board (1) and the second partition board (2).
3. The core module of claim 2, characterized in that the first and second diaphragms (1, 2) are made of an electrically conductive material; the connecting portion (40) is electrically insulated from the first separator (1) and the second separator (2).
4. The core module of claim 1, characterized in that the first partition plate (1) and the second partition plate (2) are provided with gas-liquid inlets and outlets (5) corresponding to each other, and the gas-liquid inlets and outlets (5) are communicated with the electrolysis chamber of the core body (3).
5. The core module of claim 4, characterized in that sealing grooves (50) are provided on the first and second diaphragms (1, 2) around the gas-liquid inlets (5) for sealing rings to embed.
6. An electrolytic hydrogen production electrolyzer comprising at least two core modules according to claim 1 or 2; a plurality of the core modules are electrically connected in series.
7. The electrolytic hydrogen production cell of claim 6 wherein the first (1) and second (2) baffles of the core module are made of an electrically conductive material and the first (1) and second (2) baffles of the same core module are electrically insulated;
the reactor core modules are stacked, wherein a first baffle plate (1) of one reactor core module is abutted with a second baffle plate (2) of the adjacent reactor core module.
8. The electrolytic hydrogen production cell of claim 7 further comprising a fastening assembly (6), a plurality of the core modules being compressed against one another by the fastening assembly (6).
9. Electrolytic hydrogen production cell according to claim 8, characterized in that the fastening assembly (6) comprises:
a first end plate (60);
a second end plate (61) disposed at a distance from the first end plate (60), the plurality of core modules being stacked between the first end plate (60) and the second end plate (61);
and a locking member (62) for connecting the first end plate (60) and the second end plate (61) so that the first end plate (60) and the second end plate (61) compress the plurality of core modules.
10. The electrolytic hydrogen production cell of claim 9 wherein the retaining member (62) comprises:
-a connecting rod (620) for passing through the first end plate (60) and the second end plate (61) in sequence;
a pair of limiting parts (621) respectively connected to two ends of the connecting rod (620), wherein one limiting part (621) is used for being abutted against the first end plate (60), and the other limiting part (621) is used for being abutted against the second end plate (61);
at least one of the two limiting parts (621) is in threaded connection with the connecting rod (620).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311383037.2A CN117210840B (en) | 2023-10-24 | 2023-10-24 | Reactor core module and electrolytic hydrogen production electrolytic tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311383037.2A CN117210840B (en) | 2023-10-24 | 2023-10-24 | Reactor core module and electrolytic hydrogen production electrolytic tank |
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| CN117210840B CN117210840B (en) | 2024-04-23 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110198217A1 (en) * | 2009-02-18 | 2011-08-18 | Honda Motor Co., Ltd. | Water electrolysis apparatus |
| CN115595611A (en) * | 2022-10-31 | 2023-01-13 | 李海明（Cn） | Lightweight electrolytic cell with plug module |
| CN116121794A (en) * | 2023-03-20 | 2023-05-16 | 南通安思卓新能源有限公司 | Modularized water electrolysis hydrogen production equipment |
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- 2023-10-24 CN CN202311383037.2A patent/CN117210840B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110198217A1 (en) * | 2009-02-18 | 2011-08-18 | Honda Motor Co., Ltd. | Water electrolysis apparatus |
| CN115595611A (en) * | 2022-10-31 | 2023-01-13 | 李海明（Cn） | Lightweight electrolytic cell with plug module |
| CN116121794A (en) * | 2023-03-20 | 2023-05-16 | 南通安思卓新能源有限公司 | Modularized water electrolysis hydrogen production equipment |
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| CN117210840B (en) | 2024-04-23 |
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