CN114689671B - Electrochemical reaction apparatus - Google Patents
Electrochemical reaction apparatus Download PDFInfo
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- CN114689671B CN114689671B CN202210320186.3A CN202210320186A CN114689671B CN 114689671 B CN114689671 B CN 114689671B CN 202210320186 A CN202210320186 A CN 202210320186A CN 114689671 B CN114689671 B CN 114689671B
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The present disclosure provides an electrochemical reaction apparatus comprising: a frame; the electrochemical device is arranged on the rack and comprises a first polar plate and a second polar plate, the first polar plate is provided with a first reaction cavity, the second polar plate is provided with a second reaction cavity, and the first reaction cavity and the second reaction cavity form a reaction space for electrochemical reaction; and a storage device including a storage part having a first accommodation chamber, a second accommodation chamber, a first fluid inlet and a second fluid inlet, the first accommodation chamber and the second accommodation chamber forming a communicating vessel structure and constituting a storage space for storing a liquid required for an electrolytic reaction, the first fluid inlet being in communication with the first reaction chamber and the first accommodation chamber, configured to introduce an electrolytic product of the first electrode plate into the first accommodation chamber, the second fluid inlet being in communication with the second reaction chamber and the second accommodation chamber, configured to introduce an electrolytic product of the second electrode plate into the second accommodation chamber. The present disclosure may meet the safety requirements of different electrode product separations.
Description
Technical Field
The present disclosure relates to the field of electrochemical technologies, and in particular, to an electrochemical reaction device.
Background
Electrochemical technology has extremely wide application in energy, chemical, water treatment, etc. industries, and electrochemical testing systems comprise a plurality of components, such as electrolytic cells, product separation systems, frames, electrical control systems, etc.
As the core of the electrochemical test system, the electrolytic cell is composed of a plurality of components with different functions so as to realize the requirements of uniform delivery of reactants, separation of products and electrode materials, good electric contact of the electrode components, material isolation of cathode and anode chambers, isolation of the electrolytic cell from the outside and the like, and the requirements of all the performances are required to be balanced and optimized to realize the best overall performance. The two electrodes of the electrolytic cell can respectively produce products with different properties, such as oxidation products produced by the anode and reduction products produced by the cathode, and the electrode products with higher purity are mostly required to be produced, wherein the sealing between the cathode and the anode and between the electrolytic cell and the outside is important.
The electrolytic cell commonly used in industry is composed of at least two flat plate electrodes, and the structural optimization of the electrolytic cell assembly can provide powerful support for efficient production, test and research and development. For assembly, testing and production, the electrolytic cell needs to be convenient and easy to disassemble and assemble, easy to seal, and capable of easily forming good internal electrical contact and reducing the internal resistance of the electrolytic cell.
In production-oriented electrolysis technology, energy conversion efficiency is the most important technical parameter, and the energy conversion efficiency of an electrolytic cell is determined by the impedance of the electrolytic cell, including the internal resistance of the electrolytic cell, the activity of a catalyst and the mass transfer impedance. For example, PEM (proton exchange membrane ) cells, which use pure water as a reactant to produce hydrogen and oxygen, are efficient electrochemical energy storage technologies. Pure water is required to be uniformly introduced into the anode of the PEM electrolytic cell, the cathode and anode chambers tend to reach a certain working pressure, the electrolytic cell can reach a current density of more than a plurality of A/cm < 2 >, and the performance of the electrolytic cell is very sensitive to assembly conditions. In the assembly of PEM electrolysers, a rational structural design may facilitate the assembly of low impedance electrolysers by production, research and development personnel and form a good seal to achieve optimum cell performance and avoid leakage of fluids. For example, alkaline cells, which use alkaline solutions as electrolytes and reactants to produce hydrogen and oxygen, are a low cost electrochemical energy storage technology. For example, in chlor-alkali electrolytic cells, the anode needs to be filled with electrolyte containing NaCl, the cathode needs to be filled with alkaline electrolyte, chlorine gas is generated at the anode, hydrogen gas is generated at the cathode, and both gas products are dangerous gases, thus being a basic electrochemical production industry. In these reaction cases, the mixture of the cathode and anode gas products has the possibility of explosion, and dangerous gases such as hydrogen are generated, so that the gas is the gas which is most easy to leak. These processes are large in scale and energy efficiency optimization is critical in production and development.
In the research process of electrolytic cell materials and assembly processes, the screening of materials, the optimization of process conditions and the like are required to be realized through a proper battery structure. According to the known related technology of the inventor, the existing electrolytic cell structure has the problems of inconvenient assembly, poor performance repeatability, high error rate and the like, and the assembly of the electrolytic cell is easy to generate the conditions of overhigh impedance and fluid leakage, so that the electrolytic cell has poor performance and even cannot safely operate. When two polar plates are connected through a threaded connecting piece, constraint is usually required to be applied to two sides of the two polar plates respectively due to the lack of a device for fixing the polar plates, so that the operation of a tester is inconvenient, and the assembly efficiency of the electrolytic cell is reduced; moreover, the electrolytic cells assembled by the above-described manner tend to be structurally different among persons having different operational experiences, possibly resulting in poor reproducibility of the test results.
The two electrodes of the electrolytic cell can respectively produce products with different properties, such as oxidizing gas produced by the anode and reducing gas produced by the cathode, and electrode products with higher purity are mostly needed to be produced. Therefore, the reaction system often needs to be equipped with a gas-liquid management system to achieve separation and purification of the products. A good gas-liquid management system is critical for safe and efficient operation of system equipment.
In addition, the electrochemical reactor requires precise control of reactant flow, temperature, pressure, and assembly conditions for assembly, testing, and production. For example, in the water electrolysis reaction of PEM (proton exchange membrane ), pure water is required to be introduced into the anode, oxygen is generated by the anode and mixed with the introduced pure water in the electrolysis process, a small amount of liquid is entrained by hydrogen generated by the cathode, and the products of the two electrodes are required to be separated to a certain degree to meet the purity requirement of the gaseous products; in the alkaline electrolyzed water reaction system, alkaline electrolyte with a certain concentration is required to be introduced into the anode and the cathode, oxygen is generated at the anode and hydrogen is generated at the cathode, but gas products are mixed with the electrolyte, a gas-liquid separation system is required to separate purer gas products, and meanwhile, the electrolyte is required to be recycled to the electrolytic tank; in the electrolytic reaction system of chlor-alkali process, the anode needs to be filled with electrolyte containing NaCl, the cathode needs to be filled with electrolyte, chlorine gas is generated at the anode, hydrogen gas is generated at the cathode, gas products are mixed with the electrolyte, a gas-liquid separation system is needed to separate purer gas products, and meanwhile, the electrolyte needs to be recycled to the electrolytic tank. The anode and cathode gas products in these reaction cases are all likely to explode after mixing, so a special gas-liquid management system is required to meet the safety requirements.
At present, a proper commercial test bench is lacking in the market, and is often manually built by research staff, so that non-professional test tools, unreasonable mechanisms and materials can lead to poor repeatability and high error rate of test data, inaccurate research results and severely limit technical progress.
Disclosure of Invention
The present disclosure is directed to an electrochemical reaction apparatus that can meet the safety requirements of separation of different electrode products.
A first aspect of the present disclosure provides an electrochemical reaction apparatus comprising:
a frame;
the electrochemical device is arranged on the rack and comprises a first polar plate and a second polar plate with opposite polarity to the first polar plate, the first polar plate is provided with a first reaction cavity, the second polar plate is provided with a second reaction cavity, and the first reaction cavity and the second reaction cavity form a reaction space for electrochemical reaction; and
the storage device is arranged on the rack and comprises a storage part, the storage part is provided with a first accommodating cavity, a second accommodating cavity, a first fluid inlet and a second fluid inlet, the first accommodating cavity and the second accommodating cavity form a communicating vessel structure and form a storage space for storing liquid required by electrolytic reaction, the first fluid inlet is communicated with the first reaction cavity and the first accommodating cavity and is configured to guide electrolytic products of the first polar plate into the first accommodating cavity, the second fluid inlet is communicated with the second reaction cavity and the second accommodating cavity and is configured to guide electrolytic products of the second polar plate into the second accommodating cavity.
According to some embodiments of the disclosure, the storage part includes a partition wall, the first accommodation chamber and the second accommodation chamber are partitioned by the partition wall, and a bottom of the partition wall is provided with a communication port to communicate the first accommodation chamber and the second accommodation chamber.
According to some embodiments of the disclosure, the first and second receiving cavities are disposed side by side along a first direction and the first and second receiving cavities extend along a second direction perpendicular to the first direction, a dimension of the first receiving cavity in the second direction being greater than a dimension of the first receiving cavity in the first direction, a dimension of the second receiving cavity in the second direction being greater than a dimension of the second receiving cavity in the first direction.
In accordance with some embodiments of the present disclosure,
the reservoir also has a fluid supply port configured to supply the liquid to the reaction space;
the electrochemical reaction apparatus further includes a fluid driving device configured to convey the liquid stored in the storage space to the reaction space through the fluid supply port.
According to some embodiments of the disclosure, the liquid is water, the fluid supply port is in communication with the second receiving cavity, the second fluid inlet is disposed at a top of the second receiving cavity, the second fluid inlet is configured to introduce the electrolytic product of the second plate and the liquid that flows back from the reaction space to the storage space into the second receiving cavity, and the first fluid inlet is configured to introduce the electrolytic product of the first plate and the liquid that flows back from the reaction space to the storage space into the first receiving cavity.
According to some embodiments of the disclosure, the electrochemical reaction apparatus further comprises:
a motor drivingly connected to the fluid drive device and configured to provide the fluid drive device with power required to deliver the liquid; and
and the motor control module is in signal connection with the motor and is configured to send control signals for adjusting the steering and rotating speed of the motor to the motor.
According to some embodiments of the disclosure, the first fluid inlet is disposed at an upper portion of the first receiving chamber, and the second fluid inlet is disposed at a top portion of the second receiving chamber.
According to some embodiments of the disclosure, the storage device includes a plurality of the storage parts, the first and second accommodation cavities of each of the storage parts are disposed side by side along a first direction, and the storage parts are disposed side by side along the first direction.
According to some embodiments of the disclosure, the storage device includes a storage device body and a top cover, the first accommodating cavity and the second accommodating cavity of each storage part are all disposed in the storage device body, the top cover is disposed at a top end of the storage device body, and the top cover is shared by a plurality of storage parts.
According to some embodiments of the disclosure, the storage device further comprises:
a first exhaust device connected to the first accommodation chamber and configured to exhaust gaseous electrolysis products of the first electrode plate stored in the first accommodation chamber; and
and a second exhaust device connected to the second accommodating chamber and configured to exhaust the gaseous electrolysis product of the second electrode plate stored in the second accommodating chamber.
According to some embodiments of the disclosure, the first exhaust device includes a first exhaust pipe having one end connected to a top end of the first accommodation chamber and a first cooling device disposed on the first exhaust pipe, the first cooling device configured to cool fluid in the first exhaust pipe, and the second exhaust device includes a second exhaust pipe having one end connected to a top end of the second accommodation chamber and a second cooling device disposed on the second exhaust pipe, the second cooling device configured to cool fluid in the second exhaust pipe.
According to some embodiments of the present disclosure, the storage device further comprises a sampling device in communication with at least one of the first and second receiving chambers configured to drain the liquid within the storage space to obtain a test sample of the liquid.
According to some embodiments of the present disclosure, the sampling device includes a sampling tube connected to a bottom end of the first accommodation chamber and a sampling valve disposed on the sampling tube, the sampling valve being configured to control on-off of the sampling tube.
According to some embodiments of the present disclosure, the storage device further includes a liquid level control device disposed on the storage portion, the storage portion further having a third fluid inlet in communication with at least one of the first and second receiving chambers, the liquid level control device configured to detect a level of the liquid within the storage space, and to replenish the liquid within the storage space through the third fluid inlet when the level of the liquid within the storage space is below a preset level.
According to some embodiments of the disclosure, the electrochemical reaction apparatus further comprises:
a temperature detection device configured to detect a temperature of the liquid within the storage space;
A heating device configured to heat the liquid within the storage space; and
and the temperature control module is in signal connection with the temperature detection device and the heating device and is configured to send a control signal for heating the liquid to the heating device when the temperature of the liquid in the storage space is lower than a preset temperature until the liquid reaches the preset temperature.
According to some embodiments of the disclosure, the storage part further has a first connection structure configured to mount the temperature detecting device on the storage part and a second connection structure configured to mount the heating device on the storage part, the second connection structure being disposed at a bottom of the storage space, the first connection structure being disposed above the second connection structure.
According to some embodiments of the disclosure, the electrochemical device comprises a plurality of electrochemical devices arranged on the rack at intervals, the storage device comprises a plurality of storage parts, and the storage spaces of the storage parts are communicated with the reaction spaces of the electrochemical devices in a one-to-one correspondence.
According to some embodiments of the disclosure, the electrochemical reaction apparatus further comprises:
the power supply comprises a plurality of power supply units which are arranged in one-to-one correspondence with the electrochemical devices, and the power supply units are electrically connected with the first polar plate and the second polar plate; and
the internal resistance testing device comprises a plurality of internal resistance testing units which are arranged in one-to-one correspondence with the electrochemical devices, and the internal resistance testing units are configured to detect the internal resistance of the electrochemical devices in the electrochemical reaction process.
According to some embodiments of the disclosure, the electrochemical device further comprises:
a fixing part; and
and the first connecting pieces are connected with the fixing part and are configured to fixedly mount the first polar plate and the second polar plate on the fixing part so that the first reaction cavity and the second reaction cavity form the reaction space.
According to some embodiments of the present disclosure, the electrochemical device further includes a mount on which the fixing portion is mounted, the mount being provided with at least one first fluid port communicating with the reaction space, the at least one first fluid port being configured to introduce or withdraw a fluid into or from the reaction space.
According to some embodiments of the disclosure, the fixing portion is provided with a first limit structure, the mounting seat is provided with a second limit structure, and the fixing portion is mounted on the mounting seat through the first limit structure and the second limit structure, so that the position of the reaction space relative to the at least one first fluid port is limited by limiting the position of the fixing portion relative to the mounting seat.
According to some embodiments of the disclosure, the first limit structure and the second limit structure are concave-convex fit structures.
In accordance with some embodiments of the present disclosure,
the first connecting pieces sequentially penetrate through the first polar plate and the second polar plate to be connected with the fixing part;
the first limit structure comprises a groove penetrating through the fixing portion, the second limit structure comprises a boss matched with the groove, at least one first fluid port is arranged on the end face of the boss, at least one second fluid port in one-to-one correspondence connection with the at least one first fluid port is arranged on the end face of one side of the second plate, which is close to the mounting seat, and the at least one second fluid port is communicated with the reaction space.
According to some embodiments of the present disclosure, each of the first fluid ports is held in contact with a corresponding one of the second fluid ports, and the electrochemical device further comprises a sealing element disposed between each of the first fluid ports and the corresponding one of the second fluid ports.
In accordance with some embodiments of the present disclosure,
the first connecting piece comprises a threaded connecting piece, and the fixing part is provided with a plurality of first threaded connecting holes corresponding to the plurality of first connecting pieces;
the first limit structure comprises a groove penetrating through the fixing part, the second limit structure comprises a boss matched with the groove, the groove is a rectangular through groove, the boss is of a cuboid structure, and a plurality of first threaded connection holes are distributed on two sides of the width direction of the groove so as to avoid the groove.
In accordance with some embodiments of the present disclosure,
the first polar plate is provided with a plurality of first through holes which correspond to the plurality of first threaded connecting holes and are used for penetrating through the first connecting piece, the first reaction cavity forms a square distribution area, the first through holes are arranged around the distribution area of the first reaction cavity and form a square distribution area so as to avoid the first reaction cavity, and the distribution area of the first reaction cavity and the distribution area of the first through holes are arranged at an included angle;
The second pole plate is provided with a plurality of second through holes corresponding to the plurality of first threaded connecting holes and used for penetrating through the first connecting piece, the second reaction cavity forms a square distribution area, the second through holes are arranged on the periphery of the second reaction cavity distribution area and form a square distribution area so as to avoid the second reaction cavity, and the second reaction cavity distribution area and the second through hole distribution area form an included angle.
According to some embodiments of the present disclosure, the electrochemical device further includes an electrolyte membrane mounted between the first reaction chamber and the second reaction chamber.
In accordance with some embodiments of the present disclosure,
the electrolyte membrane is a proton exchange membrane;
the storage portion further has a fluid supply port configured to supply water to the reaction space;
the first fluid port comprises a first liquid inlet and a first liquid outlet, the first liquid inlet is connected with the second fluid inlet, the first liquid outlet is connected with the fluid supply port, the second fluid port comprises a second liquid inlet and a second liquid outlet which are communicated with the second reaction cavity, the second liquid inlet is communicated with the first liquid outlet and is configured to guide water into the second reaction cavity, and the second liquid outlet is communicated with the first liquid inlet and is configured to guide water and oxygen out of the second reaction cavity;
The first plate is provided with a third fluid port in communication with the first reaction chamber, the third fluid port configured to direct hydrogen out of the first reaction chamber.
According to some embodiments of the disclosure, the electrochemical device further comprises a flow conduit, a first end of the flow conduit being connected to the third fluid port, and a second end of the flow conduit being connected to the first fluid inlet.
According to some embodiments of the present disclosure, the electrochemical device further includes a second connection member configured to fixedly mount the fixing portion on the mount.
In the electrochemical reaction equipment provided by the disclosure, the first accommodating cavity and the second accommodating cavity of the storage device form a communicating vessel structure, the first accommodating cavity and the second accommodating cavity store a certain volume of liquid, the liquid level of the liquid in the first accommodating cavity and the liquid level in the second accommodating cavity are balanced and form a liquid seal, and two spaces which are not communicated with each other are formed above the liquid level of the first accommodating cavity and above the liquid level of the second accommodating cavity. When the electrolysis products of the first polar plate and the second polar plate both contain gas, in the process of the electrolysis reaction, the gaseous electrolysis products of the first polar plate and the second polar plate respectively enter two spaces which are not communicated with each other, so that the gaseous electrolysis products of different electrodes can be prevented from being mixed, for example, when water is electrolyzed, the mixing of hydrogen and oxygen can be prevented, and the risk of explosion is reduced. Furthermore, the structure also facilitates the collection or sampling of gaseous electrolysis products of different electrodes.
Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
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 application, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and do not constitute an undue limitation on the disclosure. In the drawings:
fig. 1 is a schematic structural view of an electrochemical reaction apparatus according to some embodiments of the present disclosure.
Fig. 2 is a schematic structural diagram of a storage device according to some embodiments of the present disclosure.
Fig. 3 is a schematic cross-sectional view of the storage device shown in fig. 2.
Fig. 4 is a control schematic diagram of a temperature control module and a motor control module of an electrochemical reaction apparatus according to some embodiments of the present disclosure.
Fig. 5 is a schematic structural view of an electrochemical device according to some embodiments of the present disclosure.
Fig. 6 is an exploded view of the electrochemical device shown in fig. 5.
Fig. 7 is a schematic structural view of a first electrode plate of the electrochemical device shown in fig. 5.
Fig. 8 is a schematic structural view of a second electrode plate of the electrochemical device shown in fig. 5.
Fig. 9 is a schematic view showing the structure of the fixing portion and the mount of the electrochemical device shown in fig. 1 in an assembled state.
In fig. 1 to 9, each reference numeral represents:
1. a frame; 11. an observation port;
2. an electrochemical device; 21. a first plate; 211. a first reaction chamber; 212. a third fluid port; 213. a first projection; 214. a first connection hole; 215. a first through hole; 22. a second polar plate; 221. a second reaction chamber; 222. a first flow passage; 223. a second flow passage; 224. a second projection; 225. a second connection hole; 226. a second through hole; 23. a fixing part; 231. a groove; 232. a first threaded connection hole; 233. a second threaded connection hole; 24. a first connector; 25. a diversion seat; 251. a boss; 252. a first liquid outlet; 253. a first liquid inlet; 254. a third through hole; 26. a flow guiding pipe; 27. a third connecting member;
3. a storage device; 31. a storage device body; 311. a first accommodation chamber; 312. a second accommodation chamber; 313. a fluid supply port; 314. a second fluid inlet; 315. a first fluid outlet; 316. a second fluid outlet; 317. a third fluid outlet; 318. a first fluid inlet; 319. a third fluid inlet; 310. a communication port; 32. a first exhaust device; 33. a second exhaust device; 34. a sampling device; 35. a first connection structure; 36. a second connection structure; 37. a top cover; x, a first direction; z, the second direction; y, third direction; s, separating walls;
4. An internal resistance test device;
51. a temperature detecting device; 52. a heating device;
61. a fluid driving device; 62. a motor;
7. a control device; 71. a temperature control module; 72. and a motor control module.
Detailed Description
The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present disclosure, it should be understood that the use of terms such as "first," "second," etc. for defining components is merely for convenience in distinguishing corresponding components, and the terms are not meant to be construed as limiting the scope of the present disclosure unless otherwise indicated.
In the description of the present disclosure, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present disclosure and to simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be configured and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present disclosure; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
As shown in fig. 1 to 9, some embodiments of the present disclosure provide an electrochemical reaction apparatus including a rack 1, an electrochemical device 2, and a storage device 3. The electrochemical reaction apparatus may be used as a test apparatus as well as a production apparatus.
The electrochemical device 2 is mounted on the frame 1. The electrochemical device 2 includes a first electrode plate 21 and a second electrode plate 22 having a polarity opposite to that of the first electrode plate 21, the first electrode plate 21 being provided with a first reaction chamber 211, the second electrode plate 22 being provided with a second reaction chamber 221, the first reaction chamber 211 and the second reaction chamber 221 forming a reaction space for an electrochemical reaction.
The reaction rate of the electrochemical reaction is generally slow, so that the electrochemical reaction apparatus may include a plurality of electrochemical devices 2 in order to improve the test efficiency or the production efficiency, and the plurality of electrochemical devices 2 may simultaneously perform a plurality of groups of electrochemical reactions having the same or different test parameters without interfering with each other.
The electrochemical device 2 may be used as a different type of electrochemical reactor according to different use requirements. For example, the electrochemical device may be one of the following: proton exchange membrane water electrolysis device, alkaline water electrolysis device, chlor-alkali electrolytic cell, fuel cell and flow battery.
The storage device 3 is mounted on the frame 1. The storage device 3 includes a storage portion having a first receiving chamber 311, a second receiving chamber 312, a first fluid inlet 318, and a second fluid inlet 314, the first receiving chamber 311 and the second receiving chamber 312 forming a communicating vessel structure and constituting a storage space for storing a liquid required for an electrolytic reaction, the first fluid inlet 318 communicating with the first reaction chamber 211 and the first receiving chamber 311, configured to introduce an electrolytic product of the first electrode plate 21 into the first receiving chamber 311, and the second fluid inlet 314 communicating with the second reaction chamber 221 and the second receiving chamber 312, configured to introduce an electrolytic product of the second electrode plate 22 into the second receiving chamber 312.
For example, in performing a PEM electrolyzed water test, the first plate may be a cathode plate and the second plate may be an anode plate, the first fluid inlet may be used to introduce the cathode's electrolyzed product hydrogen gas and the second fluid inlet may be used to introduce the anode's electrolyzed product oxygen gas.
For another example, in conducting an electrolytic NaCl solution test, the first plate may be a cathode plate and the second plate may be an anode plate, the first fluid inlet may be used to introduce the cathode's electrolytic product hydrogen gas and the second fluid inlet may be used to introduce the anode's electrolytic product chlorine gas.
Of course, in the case where the electrolysis products of the electrodes are mixed with the liquid required for the electrolysis reaction, the first fluid inlet 318 is not limited to the electrolysis products introduced into the first electrode plate 21, the second fluid inlet 314 is not limited to the electrolysis products introduced into the second electrode plate 22, and the first fluid inlet 318 and the second fluid inlet 314 may be used to introduce the liquid required for the electrolysis reaction into the storage space.
In the electrochemical reaction apparatus provided in the embodiments of the present disclosure, the first accommodating chamber and the second accommodating chamber of the storage device form a communicating vessel structure, in a state in which a certain volume of liquid is stored in the first accommodating chamber and the second accommodating chamber, the liquid levels of the liquid in the first accommodating chamber and the second accommodating chamber are balanced and form a liquid seal, and two spaces which are not communicated with each other are formed above the liquid level of the first accommodating chamber and above the liquid level of the second accommodating chamber. When the electrolysis products of the first polar plate and the second polar plate both contain gas, in the process of the electrolysis reaction, the gaseous electrolysis products of the first polar plate and the second polar plate respectively enter two spaces which are not communicated with each other, so that the gaseous electrolysis products of different electrodes can be prevented from being mixed, for example, when water is electrolyzed, the mixing of hydrogen and oxygen can be prevented, and the risk of explosion is reduced. Furthermore, the structure also facilitates the collection or sampling of gaseous electrolysis products of different electrodes.
In some embodiments, as shown in fig. 3, the storage part includes a partition wall S through which the first receiving chamber 311 and the second receiving chamber 312 are partitioned, and a communication port 310 is provided at the bottom of the partition wall S to communicate the first receiving chamber 311 and the second receiving chamber 312.
In this embodiment, when the liquid level in the storage space is higher than the top edge of the communication port 310, two spaces that are not communicated with each other can be formed above the liquid level of the first accommodating chamber and above the liquid level of the second accommodating chamber. That is, by providing the communication port 310 at the bottom of the partition wall, as the electrolytic reaction proceeds and the liquid is consumed, the liquid can form a liquid seal between the first accommodation chamber and the second accommodation chamber even if the liquid remaining in the storage space is small, thereby continuously functioning to prevent the gaseous electrolytic products of the different electrodes from being mixed. In addition, compared with the case that the bottom surfaces of the first accommodating cavity and the second accommodating cavity are provided with the communication ports, the communication ports 310 are provided on the partition wall in the embodiment, and the structure is simpler and more reliable.
As shown in fig. 3, the partition wall may be integrally formed with other chamber walls forming the first and second accommodation chambers. To facilitate processing of the communication port 310, the partition wall may be formed separately from other chamber walls forming the first accommodation chamber and the second accommodation chamber and then connected to the other chamber walls.
In some embodiments, the first receiving cavity 311 and the second receiving cavity 312 are disposed side by side along the first direction X and the first receiving cavity 311 and the second receiving cavity 312 extend along a second direction Z perpendicular to the first direction, a dimension of the first receiving cavity 311 in the second direction Z being greater than a dimension of the first receiving cavity 311 in the first direction X, a dimension of the second receiving cavity 312 in the second direction Z being greater than a dimension of the second receiving cavity 312 in the first direction X.
For example, in the embodiment shown in fig. 2 and 3, the first accommodating chamber and the second accommodating chamber have a rectangular parallelepiped structure, the first direction X corresponds to the length direction of the first accommodating chamber and the second accommodating chamber, the second direction Z corresponds to the height direction of the first accommodating chamber and the second accommodating chamber, the third direction Y corresponds to the width direction of the first accommodating chamber and the second accommodating chamber, and in the use state of the storage device, the liquid level of the liquid is perpendicular to the second direction Z. In some embodiments, not shown, the first and second receiving chambers may also be prismatic or cylindrical in configuration.
In this embodiment, on the basis that the communication port 310 is provided at the bottom of the partition wall, by making the size of the first accommodating chamber 311 in the second direction Z larger than the size of the first accommodating chamber 311 in the first direction X and making the size of the second accommodating chamber 312 in the second direction Z larger than the size of the second accommodating chamber 312 in the first direction X, the bottom areas of the first accommodating chamber and the second accommodating chamber are smaller and the height is larger, and even if the remaining liquid in the storage space is smaller, the liquid in the storage space can be kept at a certain level to form a liquid seal.
In some embodiments, as shown in fig. 2-4, the reservoir also has a fluid supply port 313, the fluid supply port 313 being configured to supply liquid to the reaction space. The storage device further comprises a fluid driving device 61, the fluid driving device 61 being configured to deliver the liquid stored in the storage space to the reaction space through the fluid supply port 313.
The fluid driving means 61 may be a pump, for example a peristaltic pump. In the embodiment shown in fig. 2 and 3, when the fluid supply port 313 is provided at the top of the first receiving chamber 311, the storage device may further include a transfer pipe extending to the bottom of the storage space so as to discharge the liquid.
For electrolytic reactions occurring in some electrochemical devices provided with an electrolyte membrane, it is only necessary to supply a liquid to one of the first reaction chamber and the second reaction chamber and to form a liquid cycle, and the liquid may permeate from one electrode to the other electrode through the electrolyte membrane during the electrolytic reaction, causing additional loss of the liquid. For example, in PEM electrolyzed water tests, only water as a liquid needs to be supplied to the anode of the cell and form a water cycle, the anode generating oxygen and protons, which permeate the proton exchange membrane to the cathode and generate hydrogen, and during electrolysis, a portion of the water at the anode can permeate the proton exchange membrane to the cathode, creating additional water loss. After the electrolysis reaction is carried out for a period of time, the anode of the electrolytic cell may be lack of water, so that the electrolysis reaction cannot be carried out continuously.
In some embodiments, as shown in fig. 2 and 3, the liquid is water, the fluid supply port 313 communicates with the second receiving chamber 312, the second fluid inlet 314 is disposed at the top of the second receiving chamber 312, the second fluid inlet 314 is configured to introduce the electrolysis product of the second plate 22 into the second receiving chamber 312 and the liquid flowing back from the reaction space to the storage space, and the first fluid inlet 318 is configured to introduce the electrolysis product of the first plate 21 and the liquid flowing back from the reaction space to the storage space into the first receiving chamber 311.
In this embodiment, the storage device supplies water to the anode of the electrolytic cell through the fluid supply port 313, oxygen generated at the anode and water returned from the liquid circulation are introduced into the second accommodating chamber 312 through the second fluid inlet 314, the oxygen and water are separated into gas and liquid in the second accommodating chamber 312, and hydrogen generated at the cathode and water permeated from the anode to the cathode are introduced into the first accommodating chamber 311 through the first fluid inlet 318, and the hydrogen and water are separated into gas and liquid in the first accommodating chamber 311. Since the first accommodation chamber and the second accommodation chamber form a communicating vessel structure, water permeated from the anode to the cathode can be reused for the electrolytic reaction, additional loss of liquid is reduced, and the electrolytic reaction in the electrochemical device 2 can last for a long time without replenishing the liquid into the storage space.
In some embodiments, as shown in fig. 4, the electrochemical reaction apparatus further includes a motor 62 and a motor control module 72. The motor 62 is in driving connection with the fluid driving device 61 and is configured to provide the fluid driving device 61 with the power required for delivering the liquid. The motor control module 72 is in signal communication with the motor 62 and is configured to send control signals to the motor 62 that adjust the steering and rotational speed of the motor 62. The motor control module 72 may adjust the delivery rate of the liquid by adjusting the rotational speed of the motor 62.
In some embodiments, as shown in fig. 2 and 3, the first fluid inlet 318 is provided at an upper portion of the first receiving chamber 311, and the second fluid inlet 314 is provided at a top portion of the second receiving chamber 312.
In order to more smoothly introduce the gaseous electrolysis products into the storage space, the first and second fluid inlets need to be positioned above the level of the liquid. In this embodiment, through setting up first fluid entry in the upper portion of first holding chamber and setting up the second fluid entry in the top of second holding chamber, can reserve bigger space that holds liquid for first holding chamber and second holding chamber, do benefit to the time of extension storage portion operation, reduce the frequency of replenishing liquid to the storage space.
For an electrochemical reaction apparatus including a plurality of electrochemical devices 2, in order to introduce electrolysis products of the plurality of electrochemical devices 2, respectively, and to supply liquid required for the electrolysis reaction to the plurality of electrochemical devices 2, the storage device 3 may include a plurality of storage parts, accordingly.
In some embodiments, the storage device 3 includes a plurality of storage parts, the first receiving cavity 311 and the second receiving cavity 312 of each storage part being disposed side by side along the first direction X, and the storage parts being disposed side by side along the first direction X.
Accordingly, fluid inlets or fluid outlets of the plurality of reservoirs, which serve the same function, may be disposed on the same side of the reservoirs in the first direction and connected to the fluid lines. For example, in the embodiment shown in fig. 2 and 3, the first receiving cavities 311 and the second receiving cavities 312 of the plurality of storage parts may be arranged at intervals in the first direction X. The plurality of first fluid inlets 318 are disposed at a front side of each storage part in the first direction X, and the plurality of second fluid inlets 314 and the plurality of fluid supply ports 313 are disposed at an upper side of each storage part in the first direction X.
In this embodiment, the arrangement of the first accommodating cavity and the second accommodating cavity of each storage part and the arrangement of each storage part make the plurality of storage parts have higher integration in space, which is conducive to saving test sites, and can make the fluid pipelines correspondingly connected with the storage spaces of the plurality of storage parts form a compact and standard structural layout, which is conducive to improving the efficiency of installing or dismantling the fluid pipelines by operators.
In some embodiments, the storage device 3 includes a storage device body 31 and a top cover 37, the first accommodating cavity 311 and the second accommodating cavity 312 of each storage part are disposed in the storage device body 31, the top cover 37 is disposed at the top end of the storage device body 31, and the top cover 37 is shared by a plurality of storage parts. After the test, the top cover 37 is removed from the storage device body 31, so that the storage space of each storage part can be cleaned. The material of the storage device body and the top cover may be a material which is not likely to introduce impurities into the liquid in the storage space, such as resin.
In this embodiment, the storage spaces of the storage parts are integrated on the storage device body 31 and the storage parts share the top cover 37, so as to facilitate the improvement of the efficiency of disassembling and cleaning the storage device.
In some embodiments, as shown in fig. 2 and 3, the storage device further includes a first exhaust 32 and a second exhaust 33. The first exhaust device 32 is connected to the first receiving chamber 311 and configured to exhaust the gaseous electrolytic product of the first electrode plate 21 stored in the first receiving chamber 311. The second exhaust device 33 is connected to the second accommodating chamber 312 and configured to exhaust the gaseous electrolytic product of the second electrode plate 22 stored in the second accommodating chamber 312.
Depending on the different gaseous electrolysis products, the first and second exhaust means 32, 33 may be connected to a gas collection means for collecting the gaseous electrolysis products, or may be directly connected to an external environment for directly discharging the gaseous electrolysis products to the external environment, and if the direct discharge of the gaseous electrolysis products may pose a safety risk, the first and second exhaust means 32, 33 may also be connected to a gas treatment means, for example, in the embodiments shown in fig. 2 and 3, the first exhaust means 32 may be connected to a microreactor catalyzed by Pt or Pd in order to reduce the safety risk caused by hydrogen.
In some embodiments, the first exhaust device 32 includes a first exhaust pipe having one end connected to the top end of the first receiving chamber 311 and a first cooling device disposed on the first exhaust pipe, the first cooling device configured to cool the fluid in the first exhaust pipe, and the second exhaust device 33 includes a second exhaust pipe having one end connected to the top end of the second receiving chamber 312 and a second cooling device disposed on the second exhaust pipe, the second cooling device configured to cool the fluid in the second exhaust pipe. For example, in the embodiment shown in fig. 2 and 3, one end of the first exhaust pipe may be connected to the first fluid outlet 315 on the top surface of the first receiving chamber 311, and one end of the second exhaust pipe may be connected to the second fluid outlet 316 on the top surface of the second receiving chamber 312.
In this embodiment, the first exhaust pipe is connected to the top end of the first accommodating cavity, and the second exhaust pipe is connected to the top end of the second accommodating cavity, so that gaseous electrolysis products can be smoothly discharged out of the storage device. The fluid to be cooled may be either a gaseous electrolysis product or a liquid vapor. The first cooling device may cool the fluid flowing through the first exhaust pipe, the second cooling device may cool the fluid flowing through the second exhaust pipe, and the condensed liquid may flow back into the storage space along the first and second exhaust pipes. The materials of the first exhaust pipe and the second exhaust pipe may be materials that are not likely to introduce impurities into the liquid in the storage space, such as titanium alloy, or the like.
In some embodiments, as shown in fig. 1 and 2, the storage device 3 further comprises a sampling device 34, the sampling device 34 being in communication with at least one of the first receiving chamber 311 and the second receiving chamber 312 and configured to drain the liquid in the storage space to obtain a test sample of the liquid.
The sampling device 34 is arranged to obtain a liquid test sample at any time in the running process of the electrochemical reaction equipment so as to monitor and analyze the liquid, and can play a role in discharging the residual liquid when the storage space needs to be cleaned.
In some embodiments, to further facilitate sampling and draining, the sampling device 34 includes a sampling tube connected to the bottom end of the first receiving chamber 311 and a sampling valve disposed on the sampling tube, the sampling valve being configured to control the on-off of the sampling tube. For example, in the embodiment shown in FIGS. 2 and 3, one end of the sampling tube may be connected to the third fluid outlet 317 on the bottom surface of the first receiving chamber 311.
In some embodiments, as shown in fig. 3, the storage device 3 further includes a liquid level control device disposed on the storage portion, the storage portion further having a third fluid inlet 319 in communication with at least one of the first receiving chamber 311 and the second receiving chamber 312, the liquid level control device being configured to detect a level of liquid in the storage space, and to replenish the liquid in the storage space through the third fluid inlet 319 when the level of liquid in the storage space is below a preset level.
The preset liquid level can be determined according to the position of the communication port 310, so that the first accommodating cavity and the second accommodating cavity can always form a liquid seal to prevent gaseous electrolysis products of different electrodes from being mixed, thereby being beneficial to continuous and stable operation of the storage device and the electrochemical reaction equipment.
In order to facilitate the test personnel to observe the change of the liquid level in the storage space during the test, the storage device body 31 may be made partially or completely transparent, and the corresponding position on the frame 1 is provided with an observation port 11.
In some embodiments, as shown in fig. 4, the electrochemical reaction apparatus further includes a temperature detection device 51, a heating device 52, and a temperature control module 71. The temperature detection device 51 is configured to detect the temperature of the liquid in the storage space. The heating device 52 is configured to heat the liquid within the storage space. The temperature control module 71 is in signal connection with the temperature detection device 51 and the heating device 52 and is configured to send a control signal for heating the liquid to the heating device 52 when the temperature of the liquid in the storage space is below a preset temperature until the liquid reaches the preset temperature.
In this embodiment, the temperature detecting device and the heating device may be disposed at the bottom of the first accommodating cavity or the bottom of the second accommodating cavity, so that the temperature detecting device and the heating device can still work normally in a state where the liquid in the storage space is less.
When the storage device 3 includes a plurality of storage portions, the preset temperature of the liquid in each storage portion may be set to different values, so as to explore the influence of the temperature of different liquids on the electrolytic reaction.
For PEM electrolyzed water tests, the reaction temperature in the cell is typically in the range of 20 ℃ to 100 ℃, and the temperature detection device 51 can employ a Pt100 temperature sensor with higher sensitivity in the temperature range to improve the control accuracy.
In some embodiments, as shown in fig. 3, the storage part further has a first connection structure 35 and a second connection structure 36, the first connection structure 35 is configured to mount the temperature detecting device 51 on the storage part, the second connection structure 36 is configured to mount the heating device 52 on the storage part, the second connection structure 36 is disposed at the bottom of the storage space, and the first connection structure 35 is disposed above the second connection structure 36.
In this embodiment, the heating device 52 is installed at the bottom of the storage space and below the temperature detecting device 51. Because the convection current is generated in the cooling liquid during the heating process, the above structural form is favorable for the heating device 52 to sufficiently and uniformly heat the liquid in the storage space, and the detection result of the temperature detection device 51 is also favorable for reflecting the overall temperature of the liquid in the storage space, thereby improving the accuracy of temperature detection.
In some embodiments, the temperature control module and motor drive module described above may be implemented as a general purpose processor, programmable logic controller (Programmable Logic Controller, abbreviated as PLC), digital signal processor (Digital Signal Processor, abbreviated as DSP), application specific integrated circuit (Application Specific Integrated Circuit, abbreviated as ASIC), field-programmable gate array (Field-Programmable Gate Array, abbreviated as FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or any suitable combination thereof for performing the functions described in this disclosure.
In some embodiments, as shown in fig. 1, the electrochemical reaction apparatus includes a plurality of electrochemical devices 2 arranged on a rack 1 at intervals, and the storage device 3 includes a plurality of storage parts, the storage spaces of which are in one-to-one correspondence with the reaction spaces of the plurality of electrochemical devices 2.
For example, in the embodiment shown in fig. 1, the electrochemical reaction apparatus includes four electrochemical devices 2, and the four electrochemical devices 2 are arranged in a square shape on the frame 1. Accordingly, the storage device 3 includes four storage parts, the first receiving chamber 311 and the second receiving chamber 312 of each storage part being disposed side by side in the first direction X, and the four storage parts being disposed side by side in the first direction X. In some not shown embodiments, the electrochemical reaction apparatus may also comprise more or fewer electrochemical devices 2, for example comprising six, eight, twelve electrochemical devices 2.
As shown in fig. 4, when the storage device 3 includes a plurality of storage parts, in order to achieve control of the temperature of the liquid in the plurality of storage parts, the electrochemical reaction apparatus may include a plurality of temperature detecting devices 51, a plurality of heating devices 52, and a plurality of temperature control modules 71; in order to achieve control of the transport speed of the liquid in the plurality of reservoirs, the electrochemical reaction apparatus may include a plurality of fluid driving devices 61, a plurality of motors 62, and a plurality of motor control modules 72.
The temperature control module 71 and the motor control module 72 may be provided independently of each other; as shown in fig. 4, the temperature control module 71 and the motor control module 72 may also be integrated on the same control device 7. To meet the processing and storage requirements of the large amounts of data of the plurality of temperature control modules 71 and the plurality of motor control modules 72, the control device 7 may employ a 32-bit ARM processor and a 64MB SRAM (Static Random-Access Memory).
In some embodiments, the electrochemical reaction apparatus further comprises a power source and internal resistance testing device 4. The power supply includes a plurality of power supply units disposed in one-to-one correspondence with the plurality of electrochemical devices 2, and the power supply units are electrically connected with the first electrode plate 21 and the second electrode plate 22. The internal resistance testing apparatus 4 includes a plurality of internal resistance testing cells provided in one-to-one correspondence with the plurality of electrochemical devices 2, the internal resistance testing cells being configured to detect the internal resistance of the electrochemical devices 2 during the electrochemical reaction.
In this embodiment, the power supply may use a multi-channel dc power supply, where each channel of the multi-channel dc power supply is used as a power supply unit, and the internal resistance testing device 4 may use a multi-channel internal resistance tester, where each channel of the multi-channel internal resistance tester is used as an internal resistance testing unit. The arrangement is beneficial to the compact volume and convenient use of the electrochemical reaction equipment.
In some embodiments, the electrochemical device 2 further includes a fixing portion 23 and a plurality of first connection members 24. The plurality of first connectors 24 are connected to the fixing portion 23. The plurality of first connectors 24 are configured to fixedly mount the first and second electrode plates 21 and 22 on the fixing portion 23 such that the first and second reaction chambers 211 and 221 form a reaction space.
In this embodiment, the electrochemical device adopts the connection mode that the fixed part is connected with a plurality of first connecting pieces to replace the connection mode that a plurality of connecting pieces are connected with a plurality of corresponding mating components one by one respectively, a plurality of first connecting pieces only need be connected with the fixed part just can make first reaction chamber and second reaction chamber form the reaction space of electrochemical reaction, in the in-process of connecting first connecting piece and fixed part, the fixed part can play the constraint effect to first polar plate and second polar plate in the assembly direction, be difficult for producing dislocation between first polar plate, second polar plate and the fixed part, operating personnel need not exert the constraint simultaneously from the both sides of assembly direction, thereby do benefit to improvement electrochemical device's packaging efficiency. And under the constraint action of the fixing part, the electrochemical devices assembled by testers with different operation experiences are smaller in structural difference, so that the assembly consistency of the electrochemical devices is improved, the influence of irrelevant variables on the test is reduced, and the repeatability of the test result is improved.
In some embodiments, the electrochemical device 2 further comprises a mounting seat on which the fixing portion 23 is mounted, the mounting seat being provided with at least one first fluid port in communication with the reaction space, the at least one first fluid port being configured to direct fluid into or out of the reaction space.
The mount may be a separate component, such as the pod 25 shown in fig. 5, 6 and 9. The deflector 25 may be connected to the frame 1 by a third connection 27. The mounting may also be integrally formed with the frame 1 as part of the frame 1 shown in fig. 1.
The fluid led into or led out of the reaction space through the first fluid port can be liquid, gas or a gas-liquid mixture; the fluid introduced into or discharged from the first fluid port may be a liquid in the primary cell or the electrolytic cell, or may be a reactant of an electrode reaction occurring on one of the electrodes, or may be a product of an electrode reaction occurring on one of the electrodes, or may be a mixture of a reactant of an electrode reaction occurring on one of the electrodes and a liquid, or may be a mixture of a product of an electrode reaction occurring on one of the electrodes and a liquid.
That is, the first fluid port provided in the mount may be used to introduce or discharge a liquid into or from the reaction space, or may be used to introduce a reactant or a product of an electrochemical reaction into the reaction space. The number of first fluid ports and the direction of flow of the fluid of each first fluid port may be set according to an electrochemical reaction occurring in the electrochemical device.
In this embodiment, the first fluid port is disposed on the mounting seat, and the fixing portion is mounted on the mounting seat, so that a fluid channel communicated with the reaction space can be formed, especially when the electrochemical reaction device includes a plurality of electrochemical devices, the fluid pipeline externally connected with the electrochemical devices can be reduced, so that the fluid pipeline has a simpler arrangement mode, the assembly and disassembly efficiency of the electrochemical devices and the electrochemical reaction device can be improved, and the electrochemical devices and the fluid pipeline have higher integration level in space, thereby saving the test field.
In some embodiments, the fixing portion 23 is provided with a first limiting structure, the mounting seat is provided with a second limiting structure, and the fixing portion 23 is mounted on the mounting seat through the first limiting structure and the second limiting structure, so as to limit the position of the reaction space relative to the at least one first fluid port by limiting the position of the fixing portion 23 relative to the mounting seat.
In some embodiments, the first and second spacing structures are concave-convex mating structures. For example, one of the first and second limit structures may include a recess and the other may include a boss.
In some embodiments, as shown in fig. 5, 6 and 9, a plurality of first connection members 24 sequentially penetrate the first and second electrode plates 21 and 22 to be connected with the fixing portion 23. The first limiting structure includes a groove 231 penetrating through the fixing portion 23, and the second limiting structure includes a boss matched with the groove 231, for example, a boss 251 disposed on the flow guiding seat 25. The at least one first fluid port is arranged on the end face of the boss, and the end face of the side, close to the mounting seat, of the second polar plate 22 is provided with at least one second fluid port which is in one-to-one correspondence connection with the at least one first fluid port, and the at least one second fluid port is communicated with the reaction space.
In this embodiment, the groove 231 is used as a through groove penetrating the fixing portion 23 to form a space for avoiding the boss, and after the fixing portion is mounted on the mounting seat, the first fluid port disposed on the end surface of the boss and the second fluid port disposed on the end surface of the second polar plate 22 near one side of the mounting seat can form a connection relationship, so as to form a fluid channel communicated with the reaction space, thereby enabling the electrochemical device to have higher dismounting efficiency.
In some embodiments, each first fluid port is held in contact with a corresponding second fluid port, and the electrochemical device further comprises a sealing element disposed between each first fluid port and the corresponding second fluid port.
In this embodiment, when the fixing portion 23 is mounted on the mounting seat through the first limiting structure and the second limiting structure, the first fluid port and the corresponding second fluid port can be tightly attached through the sealing member, which is beneficial to reducing the leakage of fluid in the use process, so as to optimize the performance of the electrochemical device.
In some embodiments, not shown, a quick-connect or the like may also be used between each first fluid port and the corresponding second fluid port.
In some embodiments, as shown in fig. 5, 6 and 9, the first connection member 24 includes a screw connection member, and the fixing portion 23 is provided with a plurality of first screw connection holes 232 corresponding to the plurality of first connection members 24; the first limiting structure includes a groove 231 penetrating through the fixing portion 23, and the second limiting structure includes a boss matched with the groove 231, for example, a boss 251 disposed on the flow guiding seat 25. The groove 231 is a rectangular through groove, the boss is of a cuboid structure, and the plurality of first threaded connection holes 232 are distributed on two sides of the width direction of the groove 231 so as to avoid the groove 231.
In this embodiment, when the first connecting member 24 is a threaded connecting member, the first plate, the second plate and the fixing portion may tend to rotate relatively during assembly or disassembly. The rectangular grooves 231 penetrating the fixing portion 23 and the bosses 251 having a rectangular parallelepiped structure are provided, and the tendency of the relative rotation of the first electrode plate, the second electrode plate and the fixing portion can be suppressed by restricting the rotation of the fixing portion with respect to the mount, thereby further improving the attaching/detaching efficiency of the electrochemical device. The groove 231 penetrating the fixing portion 23 and the boss 251 having a rectangular parallelepiped structure are also provided to facilitate the uniform and rational arrangement of the plurality of first screw connection holes 232 in the remaining space of the fixing portion 23.
In some embodiments, as shown in fig. 7 and 8, the first polar plate 21 is provided with a plurality of first through holes 215 corresponding to the plurality of first threaded connection holes 232 and used for penetrating the first connecting piece 24, the first reaction cavities 211 form square distribution areas, the first through holes 215 are arranged around the distribution areas of the first reaction cavities 211 and form square distribution areas so as to avoid the first reaction cavities 211, and the distribution areas of the first reaction cavities 211 are arranged at an included angle with the distribution areas of the first through holes 215; the second pole plate 22 is provided with a plurality of second through holes 226 corresponding to the plurality of first threaded connecting holes 232 and used for penetrating the first connecting piece 24, the second reaction cavity 221 forms a square distribution area, the second through holes 226 are arranged around the distribution area of the second reaction cavity 221 and form a square distribution area so as to avoid the second reaction cavity 221, and the distribution area of the second reaction cavity 221 and the distribution area of the second through holes 226 are arranged at an included angle.
In this embodiment, the first reaction chamber 211 and the second reaction chamber 221 may be arranged as a circuitous and closely arranged flow path, so as to improve the test efficiency by improving the contact area of the reactants. On the premise that the areas of the distribution areas of the first reaction chamber and the second reaction chamber are fixed, the distribution areas of the first reaction chamber 211 and the distribution areas of the first through holes 215 are arranged at an included angle, and the distribution areas of the second reaction chamber 221 and the distribution areas of the second through holes 226 are arranged at an included angle, so that the first polar plate and the second polar plate have smaller sizes, and a plurality of electrochemical devices 2 are more conveniently integrated on one electrochemical reaction device. The included angle may be 30 deg. to 60 deg., such as 45 deg.. The first through holes 215 are arranged around the distribution area of the first reaction chamber 211, and the second through holes 226 are arranged around the distribution area of the second reaction chamber 221, so that the remaining space on the polar plate can be reasonably utilized.
In some embodiments, the electrochemical device 2 further includes an electrolyte membrane mounted between the first reaction chamber 211 and the second reaction chamber 221.
In some embodiments, the electrolyte membrane is a proton exchange membrane when used as a reactor for PEM electrolyzed water testing. The reservoir also has a fluid supply port 313, the fluid supply port 313 being configured to supply water to the reaction space. The first fluid port includes a first fluid inlet and a first fluid outlet, the first fluid inlet is connected to the second fluid inlet 314, the first fluid outlet is connected to the fluid supply 313, the second fluid port includes a second fluid inlet and a second fluid outlet in communication with the second reaction chamber 221, the second fluid inlet is in communication with the first fluid outlet and configured to direct water into the second reaction chamber 221, and the second fluid outlet is in communication with the first fluid inlet and configured to direct water and oxygen out of the second reaction chamber 221. The first plate 21 is provided with a third fluid port 212 in communication with the first reaction chamber 211, the third fluid port 212 being configured to direct hydrogen gas out of the first reaction chamber 211.
In this embodiment, for the electrochemical device having the electrolyte membrane such as the proton exchange membrane, the connection mode that the fixing portion is connected with the plurality of first connection members is adopted, so that dislocation is not easy to occur among the first polar plate, the proton exchange membrane and the second polar plate in the assembly process, which is beneficial to further improving the assembly efficiency of the electrochemical device. And under the constraint action of the fixing part, the more parts in the electrochemical device are, the more the electrochemical device is favorable for reducing the structural difference of the electrochemical device assembled by testers with different operation experiences and improving the assembly consistency of the electrochemical device, so that the repeatability of test results is improved.
In some embodiments, as shown in fig. 5 and 6, the electrochemical device 2 further includes a flow conduit 26, a first end of the flow conduit 26 being connected to the third fluid port 212, and a second end of the flow conduit 26 being connected to the first fluid inlet 318.
The other end of the draft tube 26 may be connected to a storage device or connection for the product when the electrochemical device is assembled. For example, when the electrochemical device is used as a reactor for PEM electrolyzed water testing, the other end of the draft tube 26 may be connected to a collection device for hydrogen.
As shown in fig. 5 to 9, when the electrochemical device is used as a reactor for PEM electrolyzed water test, the second plate 22 corresponds to the anode of the electrolytic cell, the second plate 22 is provided with a second protrusion 224 and a second connection hole 225 for connection with a power supply, during electrolysis, water is the reactant of the anode reaction, oxygen and protons are the product of the anode reaction, water in the storage device 3 is used as electrolyte and cooling medium, and is introduced into the second reaction chamber 221 from the second accommodation chamber 312 through the fluid supply port 313, the first liquid outlet 252, the second liquid inlet and the first flow passage 222 on the flow guide seat 25, and oxygen generated along with the anode is introduced into the second accommodation chamber 312 from the second flow passage 223 through the second liquid outlet, the first liquid inlet 253 and the second liquid inlet 314 on the flow guide seat 25; the first polar plate 21 corresponds to the cathode of the electrolytic cell, the second polar plate 22 is provided with a first protruding part 213 and a first connecting hole 214 which are used for being connected with a power supply, protons enter the first reaction cavity 211 through the proton exchange membrane in the electrolytic process, hydrogen is the product of the cathode reaction, and the hydrogen is led into the first accommodating cavity 311 through the third fluid port 212, the flow guide pipe 26 and the first fluid inlet 318. Since a small amount of water leaks into the first reaction chamber 211 through the proton exchange membrane during the electrolysis, a small amount of water leaking into the first reaction chamber 211 is also introduced into the first receiving chamber 311 through the third fluid port 212, the draft tube 26 and the first fluid inlet 318.
In order to make the mounting relationship between the fixing portion and the mount more secure, in some embodiments, the electrochemical device 2 further includes a second connection member configured to fixedly mount the fixing portion 23 to the mount.
The second connecting member may be a threaded connecting member, for example, in the embodiment shown in fig. 6 and 9, the threaded connecting member is inserted through the third through hole 254 on the guide seat 25 and connected to the second threaded connecting hole 233 on the fixing portion 23 to fixedly mount the fixing portion 23 on the guide seat 25. In some embodiments, which are not shown, the second connecting member may also be a magnetic connecting member disposed on the fixing portion and the mounting base, respectively.
Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present disclosure and are not limiting thereof; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will appreciate that: modifications may be made to the specific embodiments of the disclosure or equivalents may be substituted for part of the technical features that are intended to be included within the scope of the claims of the disclosure.
Claims (26)
1. An electrochemical reaction apparatus, comprising:
A frame (1);
an electrochemical device (2) mounted on the frame (1), wherein the electrochemical device (2) comprises a first polar plate (21) and a second polar plate (22) with opposite polarity to the first polar plate (21), the first polar plate (21) is provided with a first reaction cavity (211), the second polar plate (22) is provided with a second reaction cavity (221), and the first reaction cavity (211) and the second reaction cavity (221) form a reaction space for electrochemical reaction; and
a storage device (3) mounted on the frame (1), the storage device (3) comprising a storage portion having a first accommodating chamber (311), a second accommodating chamber (312), a first fluid inlet (318) and a second fluid inlet (314), the first accommodating chamber (311) and the second accommodating chamber (312) forming a communicating vessel structure and constituting a storage space for storing a liquid required for an electrolytic reaction, the first fluid inlet (318) being in communication with the first reaction chamber (211) and the first accommodating chamber (311), configured to introduce an electrolytic product of the first electrode plate (21) into the first accommodating chamber (311), the second fluid inlet (314) being in communication with the second reaction chamber (221) and the second accommodating chamber (312), configured to introduce an electrolytic product of the second electrode plate (22) into the second accommodating chamber (312); wherein,
The reservoir further has a fluid supply port (313), the fluid supply port (313) being configured to supply the liquid to the reaction space, the electrochemical reaction apparatus further comprising a fluid drive device (61), the fluid drive device (61) being configured to convey the liquid stored in the reservoir space to the reaction space through the fluid supply port (313);
the electrochemical device (2) further comprises a fixing portion (23), a plurality of first connecting pieces (24) and a mounting seat, wherein the first connecting pieces (24) are connected with the fixing portion (23), the first connecting pieces (24) are configured to fixedly mount the first polar plate (21) and the second polar plate (22) on the fixing portion (23), the first reaction cavity (211) and the second reaction cavity (221) form a reaction space, the fixing portion (23) is mounted on the mounting seat, the mounting seat is provided with at least one first fluid port communicated with the reaction space, the at least one first fluid port is configured to guide fluid into or out of the reaction space, the fixing portion (23) is provided with a first limiting structure, the mounting seat is provided with a second limiting structure, the fixing portion (23) is mounted on the mounting seat through the first limiting structure and the second limiting structure, and at least one fluid port is limited relative to the mounting seat through the fixing portion (23).
2. The electrochemical reaction apparatus according to claim 1, wherein the storage part comprises a partition wall (S), the first accommodation chamber (311) and the second accommodation chamber (312) are partitioned by the partition wall (S), and a communication port (310) is provided at a bottom of the partition wall (S) to communicate the first accommodation chamber (311) and the second accommodation chamber (312).
3. Electrochemical reaction device according to claim 2, characterized in that the first receiving chamber (311) and the second receiving chamber (312) are arranged side by side along a first direction (X) and the first receiving chamber (311) and the second receiving chamber (312) extend along a second direction (Z) perpendicular to the first direction, the size of the first receiving chamber (311) in the second direction (Z) being larger than the size of the first receiving chamber (311) in the first direction (X), the size of the second receiving chamber (312) in the second direction (Z) being larger than the size of the second receiving chamber (312) in the first direction (X).
4. The electrochemical reaction apparatus of claim 1, wherein the liquid is water, the fluid supply port (313) is in communication with the second receiving chamber (312), the second fluid inlet (314) is provided at a top of the second receiving chamber (312), the second fluid inlet (314) is configured to introduce the electrolysis product of the second plate (22) into the second receiving chamber (312) and the liquid flowing back from the reaction space to the storage space, and the first fluid inlet (318) is configured to introduce the electrolysis product of the first plate (21) and the liquid flowing back from the reaction space to the storage space into the first receiving chamber (311).
5. The electrochemical reaction apparatus of claim 1, further comprising:
a motor (62) in driving connection with the fluid driving device (61) configured to provide the fluid driving device (61) with power required for transporting the liquid; and
and a motor control module (72) in signal connection with the motor (62) and configured to send control signals to the motor (62) to adjust the steering and rotational speed of the motor (62).
6. The electrochemical reaction apparatus of claim 1, wherein the first fluid inlet (318) is provided at an upper portion of the first receiving chamber (311), and the second fluid inlet (314) is provided at a top portion of the second receiving chamber (312).
7. Electrochemical reaction device according to claim 1, characterized in that the storage means (3) comprise a plurality of said storage portions, the first receiving cavity (311) and the second receiving cavity (312) of each of said storage portions being arranged side by side along a first direction (X), the storage portions being arranged side by side along said first direction (X).
8. The electrochemical reaction apparatus according to claim 7, wherein the storage device (3) includes a storage device body (31) and a top cover (37), the first accommodation chamber (311) and the second accommodation chamber (312) of each storage portion are provided in the storage device body (31), the top cover (37) is provided at a top end of the storage device body (31), and the top cover (37) is shared by a plurality of storage portions.
9. Electrochemical reaction device according to one of claims 1 to 8, characterized in that the storage means (3) further comprise:
-a first exhaust means (32) connected to said first containment chamber (311) configured to exhaust the gaseous electrolysis products of said first plate (21) stored in said first containment chamber (311); and
-a second exhaust means (33), connected to the second containing chamber (312), configured to exhaust the gaseous electrolysis products of the second plate (22) stored in the second containing chamber (312).
10. The electrochemical reaction apparatus of claim 9, wherein the first exhaust means (32) comprises a first exhaust pipe having one end connected to a top end of a first receiving chamber (311) and a first cooling means provided on the first exhaust pipe, the first cooling means being configured to cool the fluid in the first exhaust pipe, and the second exhaust means (33) comprises a second exhaust pipe having one end connected to a top end of a second receiving chamber (312) and a second cooling means provided on the second exhaust pipe, the second cooling means being configured to cool the fluid in the second exhaust pipe.
11. Electrochemical reaction device according to one of claims 1 to 8, characterized in that the storage means (3) further comprises sampling means (34), the sampling means (34) being in communication with at least one of the first receiving chamber (311) and the second receiving chamber (312) and being configured to drain the liquid in the storage space for obtaining a test sample of the liquid.
12. The electrochemical reaction apparatus of claim 11, wherein the sampling device (34) comprises a sampling tube connected to the bottom end of the first receiving chamber (311) and a sampling valve provided on the sampling tube, the sampling valve being configured to control the on-off of the sampling tube.
13. Electrochemical reaction device according to one of claims 1 to 8, characterized in that the storage means (3) further comprises a liquid level control means arranged on the storage portion, the storage portion further having a third fluid inlet (319) communicating with at least one of the first receiving chamber (311) and the second receiving chamber (312), the liquid level control means being configured to detect the liquid level of the liquid in the storage space, the liquid being replenished into the storage space through the third fluid inlet (319) when the liquid level of the liquid in the storage space is below a preset liquid level.
14. The electrochemical reaction apparatus of any one of claims 1 to 8, further comprising:
a temperature detection device (51) configured to detect a temperature of the liquid within the storage space;
a heating device (52) configured to heat the liquid within the storage space; and
And a temperature control module (71) in signal connection with the temperature detection device (51) and the heating device (52) and configured to send a control signal for heating the liquid to the heating device (52) when the temperature of the liquid in the storage space is lower than a preset temperature until the liquid reaches the preset temperature.
15. The electrochemical reaction apparatus of claim 14, wherein the reservoir further has a first connection structure (35) and a second connection structure (36), the first connection structure (35) being configured to mount the temperature detection device (51) on the reservoir, the second connection structure (36) being configured to mount the heating device (52) on the reservoir, the second connection structure (36) being disposed at a bottom of the reservoir, the first connection structure (35) being disposed above the second connection structure (36).
16. Electrochemical reaction apparatus according to claim 1, characterized in that it comprises a plurality of said electrochemical devices (2) arranged on said frame (1) at intervals, said storage means (3) comprising a plurality of said storage portions, said storage spaces of said plurality of storage portions being in one-to-one correspondence with said reaction spaces of a plurality of said electrochemical devices (2).
17. The electrochemical reaction apparatus of claim 16, further comprising:
the power supply comprises a plurality of power supply units which are arranged in one-to-one correspondence with the electrochemical devices (2), and the power supply units are electrically connected with the first polar plate (21) and the second polar plate (22); and
an internal resistance testing device (4) comprising a plurality of internal resistance testing units arranged in one-to-one correspondence with a plurality of the electrochemical devices (2), the internal resistance testing units being configured to detect the internal resistance of the electrochemical devices (2) during an electrochemical reaction.
18. The electrochemical reaction apparatus of claim 1, wherein the first and second limiting structures are concave-convex mating structures.
19. The electrochemical reaction apparatus of claim 18, wherein,
the first connecting pieces (24) sequentially penetrate through the first polar plate (21) and the second polar plate (22) to be connected with the fixing part (23);
the first limit structure comprises a groove (231) penetrating through the fixing portion (23), the second limit structure comprises a boss matched with the groove (231), at least one first fluid port is arranged on the end face of the boss, at least one second fluid port in one-to-one correspondence connection with the at least one first fluid port is arranged on the end face of one side, close to the mounting seat, of the second polar plate (22), and the at least one second fluid port is communicated with the reaction space.
20. The electrochemical reaction apparatus of claim 19, wherein each of the first fluid ports is held in contact with the corresponding second fluid port, the electrochemical device further comprising a sealing element disposed between each of the first fluid ports and the corresponding second fluid port.
21. The electrochemical reaction apparatus of claim 18, wherein,
the first connecting piece (24) comprises a threaded connecting piece, and the fixing part (23) is provided with a plurality of first threaded connecting holes (232) corresponding to the plurality of first connecting pieces (24);
the first limit structure comprises a groove (231) penetrating through the fixing portion (23), the second limit structure comprises a boss matched with the groove (231), the groove (231) is a rectangular through groove, the boss is of a cuboid structure, and a plurality of first threaded connection holes (232) are distributed in two sides of the width direction of the groove (231) so as to avoid the groove (231).
22. The electrochemical reaction apparatus of claim 21, wherein,
the first polar plate (21) is provided with a plurality of first through holes (215) which correspond to the plurality of first threaded connecting holes (232) and are used for penetrating the first connecting pieces (24), the first reaction cavities (211) form square distribution areas, the first through holes (215) are arranged around the distribution areas of the first reaction cavities (211) and form square distribution areas so as to avoid the first reaction cavities (211), and the distribution areas of the first reaction cavities (211) and the distribution areas of the first through holes (215) are arranged at an included angle;
The second polar plate (22) is provided with a plurality of second through holes (226) corresponding to the plurality of first threaded connecting holes (232) and used for penetrating the first connecting piece (24), the second reaction cavity (221) forms a square distribution area, the second through holes (226) are arranged on the periphery of the second reaction cavity (221) distribution area and form a square distribution area so as to avoid the second reaction cavity (221), and the second reaction cavity (221) distribution area and the second through holes (226) distribution area are arranged in an included angle mode.
23. The electrochemical reaction apparatus of claim 19, wherein the electrochemical device (2) further comprises an electrolyte membrane mounted between the first reaction chamber (211) and the second reaction chamber (221).
24. The electrochemical reaction apparatus of claim 23, wherein,
the electrolyte membrane is a proton exchange membrane;
the reservoir further has a fluid supply port (313), the fluid supply port (313) being configured to supply water to the reaction space;
the first fluid port comprises a first liquid inlet and a first liquid outlet, the first liquid inlet is connected with the second fluid inlet (314), the first liquid outlet is connected with the fluid supply port (313), the second fluid port comprises a second liquid inlet and a second liquid outlet which are communicated with the second reaction cavity (221), the second liquid inlet is communicated with the first liquid outlet and is configured to guide water into the second reaction cavity (221), and the second liquid outlet is communicated with the first liquid inlet and is configured to guide water and oxygen out of the second reaction cavity (221);
The first polar plate (21) is provided with a third fluid port (212) communicated with the first reaction cavity (211), and the third fluid port (212) is configured to guide hydrogen out of the first reaction cavity (211).
25. The electrochemical reaction apparatus of claim 24, wherein the electrochemical device (2) further comprises a flow conduit (26), a first end of the flow conduit (26) being connected to the third fluid port (212), a second end of the flow conduit (26) being connected to the first fluid inlet (318).
26. Electrochemical reaction apparatus according to claim 1, characterized in that the electrochemical device (2) further comprises a second connection piece configured to fixedly mount the fixing part (23) on the mounting seat.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210320186.3A CN114689671B (en) | 2022-03-29 | 2022-03-29 | Electrochemical reaction apparatus |
| PCT/CN2022/130240 WO2023184978A1 (en) | 2022-03-29 | 2022-11-07 | Electrochemical reaction device |
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| CN202210320186.3A CN114689671B (en) | 2022-03-29 | 2022-03-29 | Electrochemical reaction apparatus |
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| CN114689671B true CN114689671B (en) | 2023-05-16 |
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| CN210033890U (en) * | 2019-05-29 | 2020-02-07 | 浙江恒友机电有限公司 | Hydrogen circulating pump and fuel cell vehicle |
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| GB207630A (en) * | 1922-09-04 | 1923-12-04 | John Pressly Scott | Electrolytic gas generating systems |
| CA1295679C (en) * | 1987-05-11 | 1992-02-11 | Klaus Tomantschger | Electrochemical test cell structure |
| US5427658A (en) * | 1993-10-21 | 1995-06-27 | Electrosci Incorporated | Electrolytic cell and method for producing a mixed oxidant gas |
| CA2312058A1 (en) * | 2000-06-22 | 2001-12-22 | John Lee | Electrolytic tank for the electrolysis of a liquid |
| JP2007505998A (en) * | 2003-09-22 | 2007-03-15 | ハイドロジェニクス コーポレイション | Placement of electrolytic cell |
| WO2008064159A1 (en) * | 2006-11-19 | 2008-05-29 | Wood Stone Corporation | Hydrogen producing unit |
| KR101014388B1 (en) * | 2007-12-06 | 2011-02-15 | (주)엘켐텍 | Hydrogen and oxygen generator for internal combustion engines |
| US20110100328A1 (en) * | 2009-10-29 | 2011-05-05 | Prime Core Tech LLC. | Electrolysis apparatus and related devices and methods |
| CN203065582U (en) * | 2013-03-11 | 2013-07-17 | 马文周 | Hydrogen collecting device during electrolysis of water and solar hydrogen production and storage device |
| GB201401993D0 (en) * | 2014-02-05 | 2014-03-19 | Clean Power Hydrogen Ltd | A separator plate for an electolyser, an electrolyser for generating two sepatate gasses from a fluid |
| JP2016016346A (en) * | 2014-07-07 | 2016-02-01 | 株式会社東芝 | Electrolytic water generating apparatus |
| JP6403052B2 (en) * | 2014-09-09 | 2018-10-10 | パナソニックＩｐマネジメント株式会社 | Electrode unit for electrolysis |
| DE102015212503A1 (en) * | 2015-07-03 | 2017-01-05 | Siemens Aktiengesellschaft | Reduction process and electrolysis system for electrochemical carbon dioxide recovery |
| US11220755B2 (en) * | 2018-03-22 | 2022-01-11 | Tokuyama Corporation | Apparatus for alkaline water electrolysis, and gas production method |
| CN211199421U (en) * | 2020-01-07 | 2020-08-07 | 深圳市久洲能源科技有限公司 | Intelligent split type hydrogen and oxygen generator |
| CN113481525B (en) * | 2021-06-08 | 2022-11-15 | 中国空间技术研究院 | Electrochemical reactor and electrochemical reaction system |
| CN114686913B (en) * | 2022-03-29 | 2024-02-06 | 嘉庚创新实验室 | Electrochemical reaction equipment and storage device thereof |
| CN114689671B (en) * | 2022-03-29 | 2023-05-16 | 嘉庚创新实验室 | Electrochemical reaction apparatus |
| CN114622230B (en) * | 2022-03-29 | 2023-06-27 | 嘉庚创新实验室 | Electrochemical reaction apparatus and electrochemical device thereof |
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