Electrolytic cell and hydrogen production equipment facilitating assembly

Abstract

The application provides an electrolytic cell convenient to assemble and a hydrogen production equipment, the electrolytic cell convenient to assemble comprises a cell plate body, a first connecting piece, a second connecting piece and an end plate, two end faces of the cell plate body in the width direction are inclined surfaces, and connecting grooves are arranged on the inclined surfaces along the length direction of the cell plate body; the inclined surfaces of two cell plate bodies are attached, the first connecting strip is used for extending into the connecting grooves on the two attached inclined surfaces, and the first sealing part is attached and sealed at the connecting position of the two cell plate bodies; when the two cell plate bodies are arranged horizontally, the second connecting piece is provided with second connecting strips extending into the connecting grooves on the two sides, and the second connecting piece is provided with a second sealing part covering the connecting position of the two cell plate bodies; the end plate is provided with a plurality of connecting holes, and the connecting holes are provided with fixing pieces for fixing the end plate at the two ends of the cell plate body. Compared with the prior art, the cell body of the electrolytic cell is convenient to assemble, and the width and height of the electrolytic cell body can be adjusted according to the actual situation, so that the capacity of the electrolytic cell can be adjusted.

Description

Technical Field

[0001] This invention relates to the field of electrolyte hydrogen production equipment technology, and in particular to an easy-to-assemble electrolyzer and hydrogen production equipment. Background Technology

[0002] Hydrogen energy, as a highly efficient and environmentally friendly energy source, has received widespread attention worldwide. Electrolysis of water is currently the most widely used method for producing hydrogen. The four main electrolysis technologies for hydrogen production are: alkaline electrolyzers (ALK), proton exchange membrane (PEM) electrolyzers, anion exchange membrane (AEM) electrolyzers, and solid oxide electrolyzers (SOEC).

[0003] In the hydrogen energy production process, the most crucial equipment is the electrolyzer. Depending on the energy environment, electrolyzers with corresponding structures and sizes need to be manufactured. Currently, electrolyzers are customized to meet specific needs, which increases production and transportation costs. Furthermore, assembling the entire electrolyzer is inconvenient during the hydrogen production equipment assembly process. Additionally, to meet the demands for larger scale and flexible load adjustment, the length or width of the electrolyzer needs to be increased to expand its capacity; however, current electrolyzers have a fixed capacity and cannot be adjusted. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide an easy-to-assemble electrolyzer and hydrogen production equipment to solve the problems of difficult assembly and inability to adjust capacity of electrolyzers in the prior art.

[0005] To achieve the above and other related objectives, the present invention provides an electrolytic cell that is easy to assemble, comprising:

[0006] The groove plate body, wherein there are multiple groove plates body, and the two end faces of the groove plate body in the width direction are inclined surfaces at a 45° angle toward the inner side of the groove plate body, and the inclined surfaces are provided with connecting grooves along the length direction of the groove plate body;

[0007] The first connector includes a first connecting strip and a first sealing part. When the two grooved plates are vertically fitted, the inclined surfaces of the two grooved plates are in contact. The first connecting strip is used to extend into the connecting groove on the two in contacting inclined surfaces. The first sealing part is sealed and fitted inside the connection point of the two grooved plates to seal the connection point.

[0008] When the two grooved plates are arranged horizontally, the second connector has second connecting strips on both sides that extend into the connecting groove, and a second sealing part on the second connector that covers the interior of the connection between the two grooved plates and seals the connection.

[0009] An end plate is provided with multiple connecting holes, and a fixing member is provided in the connecting holes. The fixing member is used to fix the end plate to both ends of the groove plate body.

[0010] Optionally, the cross-section of the connecting groove is an inverted trapezoid, and the cross-sections at both ends of the first connecting strip and the cross-section of the second connecting strip are inverted trapezoids that mate with the connecting groove.

[0011] Optionally, one of the groove plates is provided with a plurality of connection holes for installing ventilation pipes and electrode plates.

[0012] Optionally, the groove plate body is provided with a locking part along the length direction perpendicular to the length direction, and the locking part is used to install the diaphragm.

[0013] Optionally, the inclined surface has a cavity communicating with the connecting groove in a direction perpendicular to the length of the connecting groove, a short shaft is provided between the first connecting strip and the first sealing part, the short shaft is used to cooperate with the cavity, and the second connecting member is provided with a support shaft extending into the cavity.

[0014] Optionally, the short shaft, the support shaft, the first connecting strip, the second connecting strip, the first sealing part, and the second sealing part are all made of elastic rubber material.

[0015] Optionally, the end of the groove plate body is provided with a mounting hole, and the fastener extends into the mounting hole to fix the end plate to the end of the groove plate body.

[0016] Optionally, the end of the groove plate body is provided with an elastic sealing layer. After the fastener extends into the mounting hole, the sealing layer is located between the end plate and the groove plate body and is squeezed to seal the connection between the end plate and the groove plate body.

[0017] Optionally, the cross-section of the second connector is triangular, and the interior of the second connector is provided with an air cavity with a triangular cross-section. The first sealing part is provided with an air inlet and an air outlet for the air cavity.

[0018] Accordingly, the present invention also provides a hydrogen production apparatus, comprising:

[0019] An electrolytic cell that is easy to assemble, wherein the electrolytic cell that is easy to assemble is any one of the electrolytic cells that is easy to assemble described above;

[0020] Multiple of the aforementioned tank plates are combined to form a tank body. The end plates are fixed to both ends of the tank body to form an electrolytic cell. A diaphragm is provided inside the electrolytic cell, which divides the inside of the electrolytic cell into a cathode cavity and an anode cavity. A cathode plate and a cathode pipe are provided in the cathode cavity, and an anode plate and an anode pipe are provided in the anode cavity.

[0021] As described above, the assembly of the electrolytic cell in this invention can be achieved by using multiple cell plates to form the bottom plate, top plate, and side plates of the electrolytic cell, according to the actual required size. The cell plates are connected to each other by inserting a second connecting strip from a second connector into a connecting groove to form a flat plate, and the connection is sealed by a second sealing member. For example, the side plate is constructed using two cell plates, and the bottom and top plates are constructed using three cell plates. The connection between the side plate and the bottom or top plate is made by inserting a first connecting strip from a first connector into a connecting groove, and the connection is sealed by a first sealing part. This forms the cell body, and then the end plates are fixed to both ends of the cell body by fasteners to form a box-type electrolytic cell. Compared with the prior art, this solution allows for quick and convenient assembly of the electrolytic cell body through the cooperation of the cell plates, the first connector, and the second connector. It also allows for adjustment of the width and height of the electrolytic cell body according to actual conditions, thus adjusting the capacity of the electrolytic cell. Attached Figure Description

[0022] Figure 1 The diagram shown is a schematic representation of a hydrogen production device according to an example of the present invention.

[0023] Figure 2 The diagram shows a structural schematic of an electrolytic cell that is easy to assemble, as an example of the present invention.

[0024] Figure 3 The diagram shown is a structural schematic of a groove plate body according to an example of the present invention;

[0025] Figure 4 Displayed as Figure 2 Structural cross-sectional view at point AA;

[0026] Figure 5 Shown is a side view of a groove plate body as an example of the present invention;

[0027] Figure 6 The diagram shown is a cross-sectional view of the second connector, which is an example of the present invention.

[0028] The reference numerals in the embodiments include:

[0029] 10. Slotted plate body, 11. Inclined surface, 12. Connecting slot, 13. Cavity hole, 14. Mounting hole, 15. Connecting hole, 16. Sealing layer, 17. Engaging part

[0030] First connecting member 20, first connecting strip 21, first sealing part 22, short shaft 23

[0031] Second connecting member 30, second connecting strip 31, second sealing part 32, support shaft 33, air chamber 34, air inlet 35, air outlet 36

[0032] End plate 40, connecting hole 41, fastener 42

[0033] Anode plate 50, anode pipe 51, cathode plate 52, cathode pipe 53. Detailed Implementation

[0034] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0035] Please see Figures 1 to 6 It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show components relevant to the present invention and are not drawn according to the actual number, shape, and size of components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. The structures, proportions, and sizes shown in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of the present invention, should still fall within the scope of the technical content disclosed in the present invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are only for clarity of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention.

[0036] Before describing the embodiments of the present invention in detail, the application environment of the present invention will be described first. The technology of the present invention is mainly applied to the process of hydrogen production from electrolytes, especially to the process of hydrogen production from electrolyzers. The present invention solves the technical problem of poor heat dissipation affecting the hydrogen production efficiency in the process of hydrogen production from electrolytes.

[0037] Figure 1 A schematic diagram of a hydrogen production apparatus as an example of the present invention is shown below. Figure 1This invention provides a hydrogen production device, which includes an easily assembled electrolyzer. The electrolyzer has an internal diaphragm dividing it into a cathode chamber and an anode chamber. The cathode chamber contains a cathode plate 52 and a cathode conduit 53, while the anode chamber contains an anode plate 50 and an anode conduit 51. To facilitate energizing the anode plate 50 and cathode plate 52, they extend outside the electrolyzer. The extended portions of the anode plate 50 and cathode plate 52 are structurally equivalent to the electrode posts in a conventional electrolyzer. An easily assembled electrolyzer is one of the easily assembled electrolyzers described in any of the following embodiments.

[0038] The specific structure of an electrolytic cell that is easy to assemble according to the present invention is described in conjunction with [reference needed]. Figure 2 and Figure 6 The easy-to-assemble electrolytic cell includes:

[0039] The groove plate body 10, there are multiple groove plate bodies 10, the two end faces of the groove plate body 10 in the width direction are inclined surfaces 11 at a 45° angle to the inside of the groove plate body 10, and the inclined surfaces 11 are provided with connecting grooves 12 along the length direction of the groove plate body 10;

[0040] The first connector 20 includes a first connecting strip 21 and a first sealing part 22. When the two groove plate bodies 10 are vertically fitted, the inclined surfaces 11 of the two groove plate bodies 10 are in contact. The first connecting strip 21 is used to extend into the connecting groove 12 on the two in contacting inclined surfaces 11. The first sealing part 22 is sealed and fitted inside the connection of the two groove plate bodies 10 to seal the connection.

[0041] When the two grooved plate bodies 10 are arranged horizontally, the second connector 30 has second connecting strips 31 on both sides that extend into the connecting groove 12 respectively, and the second connector 30 has a second sealing part 32 that covers the interior of the connection between the two grooved plate bodies 10 and seals the connection.

[0042] End plate 40, the end plate 40 is provided with a plurality of connecting holes 15, and a fixing member 42 is provided in the connecting holes 15. The fixing member 42 is used to fix the end plate 40 to both ends of the groove plate body 10.

[0043] Multiple tank plates 10 can be spliced ​​along their length. If two tank plates 10 are horizontal, they are connected and fixed at the joint using a second connector 30. Specifically, a second connecting strip 31 extends into a connecting groove 12, a second sealing part 32 covers the joint of the two tank plates 10, and the second connector 30 fills the gap at the joint, forming a single plate. If two tank plates 10 are vertical, they are connected and fixed at the joint using a first connector 20. Specifically, a first connecting strip 21 extends into a connecting groove 12, and a first sealing part 22 covers the joint of the two tank plates 10. The tank plates 10 are assembled into a tank with open ends in this manner. Then, diaphragms, electrode plates, and other structures are installed. Finally, end plates 40 are fixed at both ends of the tank using fasteners 42 to form an electrolytic cell. This electrolytic cell is mainly used in water electrolysis hydrogen production equipment and can also be used in other water electrolysis processes.

[0044] In the specific implementation process, the bottom plate, top plate and side plate of the electrolytic cell can be composed of multiple cell plates 10 according to the actual size required by the electrolytic cell, and then assembled into a cell body. For example, the side plate is constructed using two cell plates 10, and the bottom plate and top plate are constructed using three cell plates 10; so that the shape and capacity of the electrolytic cell can be adjusted as needed.

[0045] In some embodiments, the cross-section of the connecting groove 12 is an inverted trapezoid, and the cross-sections at both ends of the first connecting strip 21 and the cross-section of the second connecting strip 31 are inverted trapezoids that mate with the connecting groove 12. For example, Figure 4 and Figure 5 As shown, the inverted trapezoidal connecting groove 12 facilitates the insertion of the intangible cultural heritage connecting strip and the second connecting strip 31, and connects the two groove plates 10 into one piece.

[0046] In some embodiments, one of the groove plate bodies 10 is provided with a plurality of connection holes 15 for installing ventilation pipes and electrode plates. For example, Figure 1 , Figure 2 and Figure 4 As shown, the connecting hole 15 penetrates the groove plate body 10. The connecting hole 15 is designed to facilitate the installation of the electrode plate and the ventilation pipe.

[0047] In some embodiments, the groove plate body 10 is provided with an engaging portion 17 along a direction perpendicular to its length, the engaging portion 17 being used to install a diaphragm. For example, Figure 3 As shown, the engaging part 17 is located at the center of the length direction of the groove plate body 10. The engaging part 17 is provided with an engaging groove, which is designed to facilitate the installation of the diaphragm.

[0048] In some embodiments, the inclined surface 11 has a cavity 13 communicating with the connecting groove 12 in a direction perpendicular to the length of the connecting groove 12, a short shaft 23 is provided between the first connecting strip 21 and the first sealing part 22, the short shaft 23 is used to cooperate with the cavity 13, and the second connecting member 30 has a support shaft 33 extending into the cavity 13. For example, Figure 3 , Figure 4 and Figure 5 As shown, a cavity 13 communicating with the connecting groove 12 is provided on the inclined surface 11 along the length of the groove plate 10. Since the first connecting strip 21 and the first sealing part 22 are in a separate state during use, a short shaft 23 can be provided to connect the two into one, and the groove facilitates the arrangement of the short shaft 23. In order to enable the second connecting member 30 to also cooperate with the groove, a corresponding support shaft 33 is provided on the second connecting member 30.

[0049] In some embodiments, the short shaft 23, the support shaft 33, the first connecting strip 21, the second connecting strip 31, the first sealing part 22, and the second sealing part 32 are all made of elastic rubber. The rubber material has a certain elasticity, which facilitates the insertion of the first connecting strip 21 and the second connecting strip 31 into the connecting groove 12, and allows the short shaft 23 and the support shaft 33 to smoothly engage in the cavity. It also allows the first sealing part 22 and the second sealing part 32 to seal the connection point after covering the joint of the two groove plates 10.

[0050] In some embodiments, the end of the groove plate body 10 is provided with a mounting hole 14, and the fixing member 42 extends into the mounting hole 14 to fix the end plate 40 to the end of the groove plate body 10. For example, Figures 2 to 5 As shown, the mounting hole 14 is a hole at the end of the slot plate body 10. The mounting hole 14 is designed to facilitate the fixing of the end plate 40 and the slot plate body 10 after passing through the connecting hole 15 and entering the mounting hole 14.

[0051] In some embodiments, the end of the groove plate body 10 is provided with an elastic sealing layer 16. After the fixing member 42 extends into the mounting hole 14, the sealing layer 16 is located between the end plate 40 and the groove plate body 10 and is compressed, thereby sealing the connection between the end plate 40 and the groove plate body 10. For example, Figure 3 As shown, after the end plate 40 is attached and fixed to the tank plate body 10, the sealing layer 16 is squeezed to seal the connection between the two, which facilitates the use of the electrolytic cell.

[0052] In some embodiments, the second connector 30 has a triangular cross-section, and the interior of the second connector 30 is provided with a triangular air cavity 34. The first sealing portion 22 is provided with an inflation port and an exhaust port 36 for the air cavity 34. For example, Figure 6As shown, the second connector 30 is made of rubber and has an air cavity 34 to facilitate adjustment of the volume of the second connector 30, so that the second connector 30 can fill the gap at the connection of the two slot plates 10 and achieve a better connection effect.

[0053] In the specific implementation process, if it is necessary to use a groove structure with a cross-section of triangle, pentagon, hexagon or other polygons for the groove plate body 10, the air chamber 34 can be filled and de-filled to change the cross-sectional size of the first connecting member 20, which is suitable for connecting two groove plates 10 at different angles.

[0054] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An electrolytic cell that is easy to assemble, characterized in that: The groove plate body, wherein there are multiple groove plates body, and the two end faces of the groove plate body in the width direction are inclined surfaces at a 45° angle toward the inner side of the groove plate body, and the inclined surfaces are provided with connecting grooves along the length direction of the groove plate body; The first connector includes a first connecting strip and a first sealing part. When the two grooved plates are vertically fitted, the inclined surfaces of the two grooved plates are in contact. The first connecting strip is used to extend into the connecting groove on the two in contacting inclined surfaces. The first sealing part is sealed and fitted inside the connection point of the two grooved plates to seal the connection point. When the two grooved plates are arranged horizontally, the second connector has second connecting strips on both sides that extend into the connecting groove, and a second sealing part on the second connector that covers the interior of the connection between the two grooved plates and seals the connection. An end plate is provided with multiple connecting holes, and a fixing member is provided in the connecting holes. The fixing member is used to fix the end plate to both ends of the groove plate body. The inclined surface has a cavity communicating with the connecting groove in a direction perpendicular to the length of the connecting groove. A short shaft is provided between the first connecting strip and the first sealing part. The short shaft is used to cooperate with the cavity. The second connecting member has a support shaft extending into the cavity. The second connector has a triangular cross-section and an air cavity with a triangular cross-section inside. The first sealing part has an air inlet and an air outlet for the air cavity.

2. The electrolytic cell for easy assembly according to claim 1, characterized in that: The cross-section of the connecting groove is an inverted trapezoid, and the cross-sections at both ends of the first connecting strip and the cross-section of the second connecting strip are inverted trapezoids that mate with the connecting groove.

3. The electrolytic cell for easy assembly according to claim 2, characterized in that: One of the groove plates has multiple connection holes for installing ventilation pipes and electrode plates.

4. The electrolytic cell for easy assembly according to claim 3, characterized in that: The groove plate body is provided with a locking part along the direction perpendicular to its length, and the locking part is used to install the diaphragm.

5. An electrolytic cell for easy assembly according to claim 4, characterized in that: The short shaft, the support shaft, the first connecting strip, the second connecting strip, the first sealing part, and the second sealing part are all made of elastic rubber material.

6. The electrolytic cell for easy assembly according to claim 1, characterized in that: The end of the groove plate body is provided with a mounting hole, and the fastener extends into the mounting hole to fix the end plate to the end of the groove plate body.

7. An electrolytic cell for easy assembly according to claim 6, characterized in that: The end of the groove plate body is provided with an elastic sealing layer. After the fastener extends into the mounting hole, the sealing layer is located between the end plate and the groove plate body and is squeezed to seal the connection between the end plate and the groove plate body.

8. A hydrogen production device, characterized in that, include: An electrolytic cell that is easy to assemble, wherein the electrolytic cell that is easy to assemble is the electrolytic cell that is easy to assemble as described in any one of claims 1-7; Multiple of the aforementioned tank plates are combined to form a tank body. The end plates are fixed to both ends of the tank body to form an electrolytic cell. A diaphragm is provided inside the electrolytic cell, which divides the inside of the electrolytic cell into a cathode cavity and an anode cavity. A cathode plate and a cathode pipe are provided in the cathode cavity, and an anode plate and an anode pipe are provided in the anode cavity.

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