Electrolysis device

Abstract

The utility model provides an electrolysis device, which comprises a clamp assembly and a plurality of clamping assemblies, the clamp assembly comprises two opposite clamp structures, each clamp structure is provided with an accommodating concave part and a through hole communicated with the accommodating concave part, a flow field is formed between the accommodating concave parts of the two clamp structures in a surrounding manner, and the through hole is used for transmitting a medium to be electrolyzed and / or an electrolysis product; wherein a sealing structure is arranged between the two clamp structures, and the sealing structure is used for sealing a gap between the two clamp structures; the electrolysis assembly is arranged in the flow field; and the adjusting structure is arranged in the flow field, and the adjusting structure is located on one side of the electrolysis assembly so as to adjust the size of the flow field in the preset direction S. According to the utility model, the problem that the electrolysis device in the prior art is low in universality is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolysis equipment, in particular to an electrolysis device. Background Art

[0002] At present, the electrolysis of water to produce hydrogen technology using proton exchange membrane (PEM) has the advantages of high hydrogen purity, high current density, and wide power regulation range, making it well compatible with wind and solar power with large fluctuations. The PEM electrolyzer is the core part of the device for electrolysis of water to produce hydrogen. Its components include end plates, flow field plates, plates, proton exchange membranes, cathode and anode catalysts, and porous transport layers (PTL). Among them, PTL plays the role of water / gas diffusion and transport, membrane electrode support, and electron conduction in the process of electrolysis of water to produce hydrogen. PTL is divided into cathode PTL (membrane electrode) and anode PTL (membrane electrode) according to the different electrodes connected during the electrolysis process. The anode PTL generally uses corrosion-resistant metal materials (such as titanium and stainless steel) due to the high potential corrosion environment, while the cathode PTL generally uses carbon materials to achieve its electrolysis function.

[0003] In the existing technology, some electrolysis devices are actually used in the corresponding test process to verify the relevant performance of PTL. In order to ensure the overall sealing of the electrolysis device, the entire device is also sealed with sealing measures such as silicone rubber, fluororubber, and polytetrafluoroethylene gaskets. In the actual test process, the staff will inevitably need to test the performance of PTL under different specifications, sizes and working conditions. However, the specifications of the electrolysis device are fixed. At this time, the staff can only adjust the thickness by adding or removing gaskets at the membrane electrode frame position corresponding to the electrolysis device or simply compressing the PTL to different degrees to achieve the assembly of the PTL.

[0004] However, both solutions in the existing technology have certain disadvantages. For example, even if the compression degree of the temporarily added gasket is large, it will lead to a reduction in the sealing effect of the electrolysis device. For example, compressing the PTL will cause the contact resistance between the membrane electrode and the collecting plate to be too large or the gap of the PTL to be compressed too small, which will eventually lead to the performance of the PTL deteriorating, the test results deviating from the actual results, affecting the test accuracy, and even when the compressive stress on the membrane electrode is too large, it may cause the membrane electrode to rupture and be perforated, and even completely damaged. Utility Model Content

[0005] The main purpose of the utility model is to provide an electrolysis device to solve the problem of low versatility of electrolysis devices in the prior art.

[0006] In order to achieve the above-mentioned objectives, the present invention provides an electrolysis device, comprising: a clamp assembly, comprising two relatively arranged clamp structures, each clamp structure having a receiving recess and a through hole connected to the receiving recess, a flow field is formed between the receiving recesses of the two clamp structures, and the through hole is used to transmit the medium to be electrolyzed and / or the electrolysis product; wherein a sealing structure is provided between the two clamp structures, and the sealing structure is used to seal the gap between the two clamp structures; an electrolysis assembly, arranged in the flow field; an adjustment structure, arranged in the flow field, and the adjustment structure is located on one side of the electrolysis assembly to adjust the size of the flow field in a preset direction S.

[0007] Furthermore, the clamp structure includes: a clamp body and a flow field forming piece stacked on each other, the flow field forming piece has a accommodating recess, the clamp body is located on the side of the flow field forming piece away from the flow field, and the clamp bodies of the two clamp structures are used to clamp the two flow field forming pieces; wherein the clamp body and the flow field forming piece are detachably connected.

[0008] Furthermore, the clamp structure also includes an insulating part located between the clamp body and the flow field forming part; wherein, sub-through holes are provided on the clamp body, the insulating part and the flow field forming part, and the sub-through holes of the clamp body, the sub-through holes of the insulating part and the sub-through holes of the flow field forming part are interconnected to form a through hole.

[0009] Furthermore, the flow field forming member is in the shape of a plate, and the accommodating recess is arranged on the plate surface of the flow field forming member away from the clamp body, and a buffer recess is arranged on the plate surface of the flow field forming member close to the clamp body, and the sub-through hole of the flow field forming member is arranged on the bottom wall of the buffer recess; wherein, a buffer cavity is formed between the inner wall of the buffer recess and at least part of the outer surface of the insulating member, and the sub-through hole of the insulating member is connected with the sub-through hole of the flow field forming member through the buffer cavity.

[0010] Furthermore, the buffer recess is arranged in a polygonal shape, the sub-through hole of the flow field forming member is arranged in a strip shape and located on one side of the buffer recess, and the sub-through hole of the insulating member is arranged opposite to the top corner of the buffer recess; wherein the top corner is not adjacent to the side.

[0011] Furthermore, the sealing structure is annular and is arranged around the accommodating recess; wherein, there are multiple sealing structures, and the multiple sealing structures are arranged at intervals along the radial direction of the clamp structure.

[0012] Furthermore, the electrolytic component includes: two oppositely arranged flow field structures; an electrolytic element, including carbon paper, a proton exchange membrane and titanium felt stacked on each other, and the electrolytic element is located between the two oppositely arranged flow field structures; there is a preset gap between the side of the flow field structure and the side wall of the accommodating recess, so that the two are surrounded to form at least two first flow channels, and there is a second flow channel between the two oppositely arranged flow field structures, and at least one first flow channel is connected to at least another first flow channel through the second flow channel; wherein, there are at least two through holes and include a material input hole and a material output hole, the material input hole is connected to at least one first flow channel, and the material output hole is connected to at least another first flow channel.

[0013] Furthermore, the flow field structure includes: a main body, a preset gap between the side surface of the main body and the side wall of the accommodating recess; a plurality of strip-shaped protrusions are arranged on the main body, and the plurality of strip-shaped protrusions are arranged at intervals along the length direction or width direction of the main body, so as to form a strip-shaped flow channel around two adjacent strip-shaped protrusions and the main body; wherein, in two relatively arranged flow field structures, the plurality of strip-shaped flow channels of one flow field structure are arranged one-to-one correspondingly to the plurality of strip-shaped flow channels of the two flow field structures, so as to form a second flow channel around the strip-shaped flow channel of one flow field structure and the strip-shaped flow channel arranged corresponding to the strip-shaped flow channel.

[0014] Furthermore, at least a portion of the flow field forming member is made of a conductive material; wherein the flow field forming member also has a connection protrusion (142) for electrical connection.

[0015] Furthermore, the adjustment structure is a gasket, and at least part of the adjustment structure is made of conductive material; and / or, a through hole is provided on the clamp body, and the electrolysis device also includes a connecting piece, which is connected by passing the connecting piece through the through holes of the two oppositely arranged clamp bodies.

[0016] According to the technical solution of the present invention, the clamp assembly of the electrolysis device includes two relatively arranged clamp structures, each of which has a receiving recess and a through hole connected to the receiving recess. The receiving recesses of the two clamp structures are surrounded by a flow field, and the through hole is used to transmit the medium to be electrolyzed and / or the electrolysis product. A sealing structure is provided between the two clamp structures, and the sealing structure is used to seal the gap between the two clamp structures. The electrolysis component is arranged in the flow field, and the adjustment structure is provided in the flow field and is located on one side of the electrolysis component to adjust the size of the flow field in a preset direction S. In this way, since the electrolysis component is arranged in the flow field formed by the receiving recesses of the two relatively arranged clamp structures, the staff can adjust the size of the flow field by adding an adjustment structure to the flow field, so that the clamp structure can clamp and fix electrolysis components of different specifications and sizes to facilitate subsequent testing, thereby solving the problem of low versatility of electrolysis devices in the prior art. At the same time, compared with the adjustment method in the prior art, the size of the adjustment structure in the present application can be adjusted accordingly according to the size of the electrolytic component. On the one hand, there is no problem of excessive compressive stress on the electrolytic component, thereby improving the test accuracy of the electrolytic device and extending the service life of the electrolytic component; on the other hand, since the added adjustment structure is located in the flow field, the gap between the two clamp structures will not change, that is, the sealing structure can still stably seal the gap between the two clamp structures, avoiding the occurrence of liquid leakage problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of an electrolysis device according to the present utility model is shown;

[0019] Figure 2 Shown Figure 1 Explosion diagram of the electrolysis device in FIG;

[0020] Figure 3 Shown Figure 1 A side view of the electrolysis device in FIG.

[0021] Figure 4 Shown Figure 3 A schematic cross-sectional view of the electrolysis device in FIG.

[0022] Figure 5 Shown Figure 1 A top view of a flow field forming member of an electrolysis device;

[0023] Figure 6 Shown Figure 5 A schematic cross-sectional view of a flow field forming member in FIG.

[0024] Figure 7 Shown Figure 5 A bottom view of the flow field forming member in FIG.

[0025] Figure 8 Shown Figure 1 A schematic diagram of the three-dimensional structure of a fixture body of a fixture structure of a fixture assembly of an electrolysis device;

[0026] Figure 9 Shown Figure 1 A schematic diagram of the three-dimensional structure of the insulating member of the clamp structure of the clamp assembly of the electrolysis device;

[0027] Figure 10 Shown Figure 1 A schematic diagram of the three-dimensional structure of the flow field structure of the electrolysis component of the electrolysis device;

[0028] Figure 11 Shown Figure 10 Side view of the two flow field structures after assembly.

[0029] The above drawings include the following reference numerals:

[0030] 10. Clamp structure; 11. Accommodating recess; 12. Through hole; 13. Clamp body; 131. Penetrating hole; 132. Limiting hole; 14. Flow field forming member; 141. Buffering recess; 142. Connecting protrusion; 15. Insulating member; 16. Sub-through hole; 20. Sealing structure; 30. Electrolytic component; 31. Flow field structure; 311. Main body; 312. Strip protrusion; 313. Strip flow channel; 32. First flow channel; 33. Second flow channel; 40. Adjustment structure. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In order to solve the problem of low versatility of electrolysis devices in the prior art, the present application provides an electrolysis device.

[0034] like Figures 1 to 11As shown, the clamp assembly of the electrolysis device includes two opposing clamp structures 10. Each clamp structure 10 has a receiving recess 11 and a through-hole 12 communicating with the receiving recess 11. A flow field is formed between the receiving recesses 11 of the two clamp structures 10. The through-hole 12 is used to transmit the medium to be electrolyzed and / or the electrolysis product. A sealing structure 20 is provided between the two clamp structures 10 to seal the gap between the two clamp structures 10. The electrolysis assembly 30 and the adjustment structure are both provided in the flow field. The adjustment structure 40 is located on one side of the electrolysis assembly 30 to adjust the size of the flow field in a predetermined direction S.

[0035] Using the technical solution of this embodiment, the clamp assembly of the electrolysis device includes two opposing clamp structures 10. Each clamp structure 10 has a receiving recess 11 and a through-hole 12 communicating with the receiving recess 11. A flow field is formed between the receiving recesses 11 of the two clamp structures 10. The through-hole 12 is used to transmit the medium to be electrolyzed and / or the electrolysis product. A sealing structure 20 is provided between the two clamp structures 10 to seal the gap between the two clamp structures 10. An electrolysis assembly 30 is provided in the flow field, and an adjustment structure 40 is provided in the flow field and located to one side of the electrolysis assembly 30 to adjust the size of the flow field in a predetermined direction S. In this way, since the electrolytic assembly 30 is arranged in the flow field formed by the receiving recesses 11 of the two oppositely arranged clamp structures 10, the staff can adjust the size of the flow field by adding an adjustment structure 40 to the flow field, so that the clamp structure 10 can clamp and fix electrolytic assemblies 30 of different specifications and sizes to facilitate subsequent testing, thereby solving the problem of low versatility of electrolytic devices in the prior art. At the same time, compared with the adjustment method in the prior art, the size of the adjustment structure 40 in the present application can be adjusted accordingly according to the size of the electrolytic assembly 30. On the one hand, there is no problem of excessive compressive stress on the electrolytic assembly 30, thereby improving the test accuracy of the electrolytic device and extending the service life of the electrolytic assembly 30; on the other hand, since the added adjustment structure 40 is located in the flow field, the gap between the two clamp structures 10 will not change, that is, the sealing structure can still stably seal the gap between the two clamp structures 10, avoiding the occurrence of liquid leakage problems.

[0036] In this embodiment, the accommodating recess 11 is a cubic structure, and two accommodating recesses 11 surround and form a flow field, and the flow field as a whole is a rectangular parallelepiped structure.

[0037] It should be noted that the specific structure of the flow field can be adjusted accordingly according to working conditions and usage requirements.

[0038] In this embodiment, the inner wall of the accommodating recess 11 is platinum-plated to further reduce the contact resistance between the electrolytic assembly 30 and the inner wall of the accommodating recess 11 , thereby improving the accuracy of the subsequent detection structure.

[0039] In this embodiment, the medium to be electrolyzed is water, and the electrolysis products are hydrogen and oxygen.

[0040] In this embodiment, the preset direction S is Figure 3 and Figure 4 The height direction of the electrolysis device.

[0041] like Figures 1 to 9 As shown, the clamp structure 10 includes a clamp body 13 and a flow field forming member 14 stacked on top of each other. The flow field forming member 14 has a receiving recess 11. The clamp body 13 is located on the side of the flow field forming member 14 away from the flow field. The clamp bodies 13 of the two clamp structures 10 are used to clamp the two flow field forming members 14. The clamp body 13 and the flow field forming member 14 are detachably connected. In this way, while the clamp body 13 realizes the clamping and fixing functions of the clamp structure 10, the flow field forming member 14 detachably connected to the clamp body 13 can be further replaced and adapted according to the specifications and dimensions of the electrolysis component 30, so as to further improve the versatility of the electrolysis device.

[0042] In this embodiment, in the two clamp structures 10 , the clamp body 13 is plate-shaped and made of titanium metal material to extend the service life of the electrolysis device.

[0043] In this embodiment, a detachable flow field forming member 14 and a clamp body 13 are used, so that the structure of the flow field forming member 14 can be greatly adjusted, such as switching between common parallel and three-snake flow channel structures, which greatly improves the versatility of the electrolysis device.

[0044] like Figures 1 to 9 As shown, the clamp structure 10 also includes an insulating member 15 located between the clamp body 13 and the flow field forming member 14. Among them, sub-through holes 16 are provided on the clamp body 13, the insulating member 15 and the flow field forming member 14, and the sub-through holes 16 of the clamp body 13, the sub-through holes 16 of the insulating member 15 and the sub-through holes 16 of the flow field forming member 14 are interconnected to form a through hole 12. In this way, the clamp structure 10 and the flow field forming member 14 are insulated by the insulating member 15, which can reduce the risk of electric shock to the staff during the disassembly and assembly of the electrolysis device, thereby improving the safety of the electrolysis device. At the same time, the above-mentioned arrangement also makes the formation method of the through hole 12 simpler, easier to process and realize, and also reduces the processing difficulty of the staff.

[0045] In this embodiment, the insulating member 15 is plate-shaped and is entirely made of epoxy resin to ensure that the insulating member 15 has high insulation reliability.

[0046] like Figures 1 to 9 As shown, the flow field forming member 14 is plate-shaped, and the accommodating recess 11 is provided on the plate surface of the flow field forming member 14 away from the clamp body 13. A buffer recess 141 is provided on the plate surface of the flow field forming member 14 close to the clamp body 13. The sub-through hole 16 of the flow field forming member 14 is provided on the bottom wall of the buffer recess 141. A buffer cavity is formed between the inner wall of the buffer recess 141 and at least part of the outer surface of the insulating member 15. The sub-through hole 16 of the insulating member 15 is connected to the sub-through hole 16 of the flow field forming member 14 through the buffer cavity. In this way, the provision of the buffer recess 141 is conducive to dispersing the medium and reducing the transport resistance of the medium, thereby increasing the transport speed of the substance in the electrolysis device and improving the electrolysis efficiency of the electrolysis device.

[0047] like Figures 1 to 9 As shown, the buffer recess 141 is arranged in a polygonal shape, the sub-through hole 16 of the flow field forming member 14 is arranged in a strip shape and is located on one side of the buffer recess 141, and the sub-through hole 16 of the insulating member 15 is arranged opposite to a vertex of the buffer recess 141. The vertex is not adjacent to the side. In this way, the strip-shaped sub-through hole 16 can better disperse the medium, and because the vertex is not adjacent to the side, the medium flowing out of the sub-through hole 16 needs to flow through the larger area of ​​the buffer recess 141 before it can enter another sub-through hole 16, further improving the dispersion effect of the flow field forming member 14 on the medium, thereby further reducing the transport resistance of the medium.

[0048] In this embodiment, the buffer recess 141 is triangular in shape. The strip-shaped sub-throughholes 16 are adjacent to one side of the triangular buffer recess 141, while the sub-throughholes 16 of the insulating member 15 are positioned opposite the vertex that is not adjacent to the side. This ensures that the medium flows substantially entirely through the triangular buffer recess 141, further enhancing the medium dispersion effect of the flow field forming member 14.

[0049] It should be noted that the actual shape of the buffer recess 141 is not limited thereto and can be adjusted according to working conditions and usage requirements.

[0050] Optionally, the sealing structure 20 is annular and disposed around the accommodating recess 11. There may be multiple sealing structures 20, each spaced apart along the radial direction of the clamp structure 10. This arrangement not only increases the sealing area of ​​the sealing structure 20, thereby improving the overall sealing and pressure resistance of the electrolytic device, but also achieves multiple seals for the sealing structure 20. That is, during actual use, even if some sealing structures 20 fail, the remaining sealing structures 20 can still seal the failed sealing structures 20, further improving the overall sealing and pressure resistance of the electrolytic device.

[0051] In this embodiment, there are five sealing structures 20 , which are spaced apart along the radial direction of the clamp structure 10 .

[0052] Optionally, the sealing structure 20 is a sealing ring, and a corresponding annular accommodation portion is provided on the surface of the clamp body 13 to fix the sealing ring accordingly.

[0053] In this embodiment, the flow field forming member 14 of one clamp structure 10 is a cathode flow field forming member, and the flow field forming member 14 of the other clamp structure 10 is an anode flow field forming member.

[0054] In this embodiment, three annular accommodating portions are provided on one of the cathode flow field forming member and the anode flow field forming member, and two annular accommodating portions are provided on the other of the cathode flow field forming member and the anode flow field forming member to achieve the installation of five sealing rings.

[0055] It should be noted that the number of sealing rings and the arrangement of the annular accommodating portion are not limited thereto and can be adjusted accordingly according to working conditions and usage requirements.

[0056] like Figures 1 to 4 、 Figure 10 and Figure 11As shown, the electrolytic assembly 30 includes two oppositely disposed flow field structures 31 and an electrolytic element. The electrolytic element includes stacked carbon paper, a proton exchange membrane, and titanium felt. The electrolytic element is located between the two oppositely disposed flow field structures 31. A preset gap is provided between the side surfaces of the flow field structures 31 and the side walls of the accommodating recess 11, so that the two surround and form at least two first flow channels 32. A second flow channel 33 is provided between the two oppositely disposed flow field structures 31. At least one first flow channel 32 is connected to at least another first flow channel 32 through the second flow channel 33. There are at least two through-holes 12, including a material input hole and a material output hole. The material input hole is connected to at least one first flow channel 32, and the material output hole is connected to at least another first flow channel 32. In this way, the liquid flowing into the flow field through the material input hole can flow through the first flow channel 32, the second flow channel 33 and the first flow channel 32 in sequence and then flow out through another material output hole. In this process, the liquid can be electrolyzed under the electrolysis action of the electrolysis component, and the generated oxygen flows in through the material output hole along with the liquid, and the generated hydrogen can pass through the proton exchange membrane and flow out through the material output hole on the other side. While realizing the function of electrolysis, the products (hydrogen and oxygen) are classified and transmitted, reducing the difficulty of subsequent collection of the products.

[0057] In this embodiment, carbon paper is used for electrolysis on the cathode side, and titanium felt is used for electrolysis on the anode side.

[0058] In this embodiment, the proton exchange membrane located between the two flow field structures 31 separates the flow field to ensure that water and oxygen generated by electrolysis do not flow to the hydrogen delivery side.

[0059] In this embodiment, the compression rate of the carbon paper can be adjusted by adjusting the size of the adjustment structure 40 to adapt to electrolytic components 30 of different specifications and sizes.

[0060] In this embodiment, the flow field structure 31 includes a main body 311, and a preset gap is provided between the side surface of the main body 311 and the side wall of the accommodating recess 11. A plurality of strip-shaped protrusions 312 are provided on the main body 311, and the plurality of strip-shaped protrusions 312 are arranged at intervals along the length direction or width direction of the main body 311, so as to form a strip-shaped flow channel 313 around two adjacent strip-shaped protrusions 312 and the main body 311. Among them, in two oppositely arranged flow field structures 31, the plurality of strip-shaped flow channels 313 of one flow field structure 31 are arranged in a one-to-one correspondence with the plurality of strip-shaped flow channels 313 of the two flow field structures 31, so as to form a second flow channel 33 around the strip-shaped flow channel 313 of one flow field structure 31 and the strip-shaped flow channel 313 corresponding to the strip-shaped flow channel 313. In this way, while forming a plurality of second flow channels 33 through the flow field structure 31, the contact surface between the liquid and the flow field structure 31 can be increased, thereby improving the electrolysis efficiency of the electrolysis device.

[0061] In this embodiment, at least a portion of the flow field forming member 14 is made of a conductive material. The flow field forming member 14 also has a connecting protrusion 142 for electrical connection. Thus, the flow field forming member 14 effectively functions as an electrical connection, and the connecting protrusion 142 provided on the flow field forming member 14 facilitates connection between the flow field forming member 14 and an external power source, thereby reducing operational complexity for the operator.

[0062] Optionally, the adjustment structure 40 is a gasket, and at least a portion of the adjustment structure 40 is made of a conductive material; and / or, a through-hole 131 is provided on the clamp body 13, and the electrolysis device further includes a connector, which is inserted through the through-holes 131 of two oppositely disposed clamp bodies 13 to connect the two oppositely disposed clamp bodies 13. Thus, on the one hand, the above-mentioned arrangement makes the structure of the adjustment structure 40 simpler, easier to process and implement, thereby reducing the processing difficulty for the staff and the processing cost of the adjustment structure 40; on the other hand, the gasket made of conductive material can adjust the flow field size without affecting the electrical connection between the flow field structure 31 and the flow field forming member 14, thereby improving the operational reliability of the electrolysis device. At the same time, the arrangement of the connector and the through-hole 131 can realize the clamping function of the clamp body 13.

[0063] In this embodiment, the through hole 131 is a threaded hole, and the connecting piece is a stainless steel screw, which is passed through the through holes 131 of the two clamp bodies 13 to connect the two clamp bodies 13, thereby realizing the clamping function of the clamp bodies 13.

[0064] In this embodiment, the fixture body 13 is also plate-shaped. Optionally, a limit hole 132 is provided thereon. Accordingly, the insulating member 15 and the flow field forming member 14 are also provided with limit holes 132. During the assembly process, the operator can insert a limit rod into the limit hole 132 to achieve positioning during the assembly process and perform subsequent assembly, thereby reducing the assembly difficulty for the operator and improving the assembly quality of the electrolysis device.

[0065] The assembly process of the electrolysis device in this embodiment is as follows:

[0066] 1. Preparation: Prepare an active area of ​​5*5 (cm 2 ) of water electrolysis membrane electrodes and components of electrolysis devices;

[0067] Specific preparation work: Punch the membrane electrode according to the position of the limiting hole 132, and cut the PTL (including carbon paper and proton exchange membrane) into 5*5 (cm 2) size, and calculate the compressed thickness based on the appropriate compression rate of PTL; wherein, the thickness of the gasket (adjustment structure 40) = the depth of the accommodating recess 11 - the thickness of the flow field structure 31 - the thickness of the PTL after compression.

[0068] 2. Installation process:

[0069] Step 1: First, install the fixture body 13, the insulating member 15 and the flow field forming member 14 of the cathode fixture structure 10 in sequence;

[0070] Step 2: Install the calculated and selected adjustment structure 40 into the receiving recess 11 of the cathode flow field forming member;

[0071] Step 3: Install the cathode flow field structure 31;

[0072] Step 4: Install the membrane electrode onto the flow field structure 31;

[0073] Step 5: Install another calculated adjustment structure 40 into the receiving recess 11 of the anode flow field forming member;

[0074] Step 6: Install the flow field structure 31 into the accommodating recess 11 of the anode flow field forming member;

[0075] Step 7: Install the anode flow field forming member with the flow field structure 31 and the adjustment structure 40 installed onto the installed membrane electrode;

[0076] Step 8: Install the insulating member 15 and the fixture body 13 of the anode fixture structure 10 in sequence, install the screws, and tighten them with a fixed torque.

[0077] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0078] The clamp assembly of the electrolysis device includes two clamp structures arranged opposite to each other, each clamp structure having a receiving recess and a through hole connected to the receiving recess. A flow field is formed between the receiving recesses of the two clamp structures, and the through hole is used to transmit the medium to be electrolyzed and / or the electrolysis product. A sealing structure is provided between the two clamp structures, and the sealing structure is used to seal the gap between the two clamp structures. The electrolysis component is arranged in the flow field, and the adjustment structure is provided in the flow field and is located on one side of the electrolysis component to adjust the size of the flow field in a preset direction S. In this way, since the electrolysis component is arranged in the flow field formed by the receiving recesses of the two oppositely arranged clamp structures, the staff can adjust the size of the flow field by adding the adjustment structure to the flow field, so that the clamp structure can clamp and fix electrolysis components of different specifications and sizes to facilitate subsequent testing, thereby solving the problem of low versatility of electrolysis devices in the prior art. At the same time, compared with the adjustment method in the prior art, the size of the adjustment structure in the present application can be adjusted accordingly according to the size of the electrolytic component. On the one hand, there is no problem of excessive compressive stress on the electrolytic component, thereby improving the test accuracy of the electrolytic device and extending the service life of the electrolytic component; on the other hand, since the added adjustment structure is located in the flow field, the gap between the two clamp structures will not change, that is, the sealing structure can still stably seal the gap between the two clamp structures, avoiding the occurrence of liquid leakage problems.

[0079] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0080] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0081] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0082] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An electrolysis device, characterized in that: include: A clamp assembly comprises two clamp structures (10) arranged opposite to each other, each of the clamp structures (10) having a receiving recess (11) and a through hole (12) communicating with the receiving recess (11), a flow field being formed between the receiving recesses (11) of the two clamp structures (10), and the through hole (12) being used for transmitting a medium to be electrolyzed and / or an electrolysis product; wherein a sealing structure (20) is provided between the two clamp structures (10), and the sealing structure (20) is used for sealing a gap between the two clamp structures (10); an electrolytic assembly (30) disposed in the flow field; An adjustment structure (40) is provided in the flow field, and the adjustment structure (40) is located on one side of the electrolysis component (30) to adjust the size of the flow field in a preset direction S.

2. The electrolysis device according to claim 1, characterized in that The clamp structure (10) comprises: A clamp body (13) and a flow field forming member (14) are stacked on each other, the flow field forming member (14) having the accommodating recess (11), the clamp body (13) being located on a side of the flow field forming member (14) away from the flow field, and the clamp bodies (13) of the two clamp structures (10) being used to clamp the two flow field forming members (14); Wherein, the clamp body (13) and the flow field forming member (14) are detachably connected.

3. The electrolysis device according to claim 2, characterized in that The clamp structure (10) further includes an insulating member (15) located between the clamp body (13) and the flow field forming member (14); Wherein, sub-through holes (16) are provided on the clamp body (13), the insulating member (15) and the flow field forming member (14), and the sub-through holes (16) of the clamp body (13), the sub-through holes (16) of the insulating member (15) and the sub-through holes (16) of the flow field forming member (14) are interconnected to form the through hole (12).

4. The electrolysis device according to claim 3, characterized in that The flow field forming member (14) is in a plate shape, the accommodating recess (11) is provided on a plate surface of the flow field forming member (14) away from the clamp body (13), a buffer recess (141) is provided on a plate surface of the flow field forming member (14) close to the clamp body (13), and the sub-through hole (16) of the flow field forming member (14) is provided on a bottom wall of the buffer recess (141); A buffer cavity is formed between the inner wall of the buffer recess (141) and at least part of the outer surface of the insulating member (15), and the sub-through hole (16) of the insulating member (15) is connected to the sub-through hole (16) of the flow field forming member (14) through the buffer cavity.

5. The electrolysis device according to claim 4, characterized in that The buffer recess (141) is arranged in a polygonal shape, the sub-through hole (16) of the flow field forming member (14) is arranged in a strip shape and is located on an edge of the buffer recess (141), and the sub-through hole (16) of the insulating member (15) is arranged opposite to a vertex of the buffer recess (141); wherein the vertex is not adjacent to the edge.

6. The electrolysis device according to claim 1, characterized in that The sealing structure (20) is annular and is arranged around the accommodating recess (11); wherein, there are multiple sealing structures (20), and the multiple sealing structures (20) are arranged at intervals along the radial direction of the clamp structure (10).

7. The electrolysis device according to claim 1, characterized in that The electrolytic assembly (30) comprises: two oppositely arranged flow field structures (31); An electrolytic element, comprising carbon paper, a proton exchange membrane and titanium felt stacked on top of each other, wherein the electrolytic element is located between two oppositely arranged flow field structures (31); A preset gap is provided between the side surface of the flow field structure (31) and the side wall of the accommodating recess (11), so that the two surround and form at least two first flow channels (32); a second flow channel (33) is provided between the two oppositely arranged flow field structures (31); and at least one of the first flow channels (32) is connected to at least another of the first flow channels (32) through the second flow channel (33); There are at least two through holes (12) including a material input hole and a material output hole, wherein the material input hole is connected to at least one of the first flow channels (32), and the material output hole is connected to at least another of the first flow channels (32).

8. The electrolysis device according to claim 7, characterized in that The flow field structure (31) comprises: A main body (311), wherein a preset gap is provided between a side surface of the main body (311) and a side wall of the accommodating recess (11); The main body (311) is provided with a plurality of strip-shaped protrusions (312), and the plurality of strip-shaped protrusions (312) are arranged at intervals along the length direction or the width direction of the main body (311), so as to form a strip-shaped flow channel (313) between two adjacent strip-shaped protrusions (312) and the main body (311); Among them, in two oppositely arranged flow field structures (31), the multiple strip flow channels (313) of one flow field structure (31) are arranged in a one-to-one correspondence with the multiple strip flow channels (313) of the two flow field structures (31), so that the second flow channel (33) is formed between the strip flow channel (313) of one flow field structure (31) and the strip flow channel (313) arranged corresponding to the strip flow channel (313).

9. The electrolysis device according to claim 2, characterized in that At least a portion of the flow field forming member (14) is made of a conductive material; wherein the flow field forming member (14) further has a connection protrusion (142) for electrical connection.

10. The electrolysis device according to claim 2, characterized in that The adjustment structure (40) is a gasket, and at least a portion of the adjustment structure (40) is made of a conductive material; and / or, The clamp body (13) is provided with a through hole (131), and the electrolysis device further comprises a connecting piece, which is passed through the through holes (131) of the two relatively arranged clamp bodies (13) to connect the two relatively arranged clamp bodies (13).

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