Electrolytic tank positioning tool and electrolytic tank

Abstract

The invention belongs to the field of water electrolysis hydrogen production. The invention provides an electrolytic cell positioning tool and an electrolytic cell. The positioning tool of the electrolytic bath comprises a base, the first leaning piece is located on the base, a first positioning piece is arranged on the first leaning piece, and the first positioning piece is used for fixing a polar plate in the electrolytic cell; and the second leaning piece is located on the base, a second positioning piece is arranged on the second leaning piece, the second positioning piece is used for fixing a first end plate in the electrolytic bath, and the first end plate is used for placing the polar plate. According to the positioning tool of the electrolytic bath, the polar plate in the electrolytic bath can be accurately positioned, and the positioning tool can be suitable for the electrolytic baths with different sizes.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogen production by electrolysis of water, and in particular to a positioning fixture for an electrolytic cell and an electrolytic cell. Background Art

[0002] Hydrogen production through water electrolysis involves the electrolysis of pure water. This produces renewable, clean hydrogen that can be used in a variety of applications, such as energy storage, hydrogen energy supply, and hydrogen fuel cells. The electrolysis process requires an electrolyzer, which typically consists of two electrodes (a cathode and an anode) and an electrolyte solution. The choice of electrolyzer depends on the specific application requirements and scale. Before use, the electrolyzer must be selected and assembled based on these requirements and scale.

[0003] In the current process of assembling electrolytic cells, manual positioning is mostly adopted, which leads to problems such as inaccurate positioning, low work efficiency, and poor applicability.

[0004] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Summary of the Invention

[0005] The embodiments of the present application provide a positioning tool for an electrolytic cell and an electrolytic cell to solve or alleviate the above-mentioned technical problems such as inaccurate positioning, low working efficiency, and poor applicability.

[0006] According to a first aspect of an embodiment of the present application, a positioning tool for an electrolytic cell is provided, comprising a base; a first support member, the first support member being located on the base, a first positioning member being provided on the first support member, the first positioning member being used to fix the electrode plates in the electrolytic cell; and a second support member, the second support member being located on the base, a second positioning member being provided on the second support member, the second positioning member being used to fix the first end plate in the electrolytic cell, the first end plate being used to place the electrode plates.

[0007] The positioning fixture of the electrolytic cell of the embodiment of the present application can accurately position the electrode plates (each small chamber composed of the electrode plates, etc.) in the electrolytic cell and can be applied to electrolytic cells of different sizes.

[0008] Specifically, the first positioning member on the first support member can secure the electrode plates in the electrolytic cell (the first positioning member is fixedly connected to the electrode plate's retaining structure), ensuring precise alignment of each layer of electrode plates. The second positioning member on the second support member can secure the first end plate in the electrolytic cell, allowing the electrode plates to be stacked on the fixed first end plate. In addition, by varying the relative positions of the first and second support members on the base plate, the positioning fixture can be adapted for electrolytic cells of different sizes and can be used to secure electrolytic cells located at different positions on the base plate.

[0009] According to an embodiment of the present application, the base is an L-shaped base having a transverse section and a longitudinal section, the transverse section is provided with the first support member and the second support member, and the longitudinal section is provided with the first support member and the second support member.

[0010] According to an embodiment of the present application, two second support members and one first support member are provided on the L-shaped base, and the base is an L-shaped base. The base has a transverse section and a longitudinal section, the transverse section is provided with the first support member and the second support member, and the longitudinal section is provided with the second support member.

[0011] According to an embodiment of the present application, a first positioning hole and a second positioning hole are provided on the base, and the first support member is connected to the base through the first positioning hole; the second support member is connected to the base through the second positioning hole.

[0012] According to an embodiment of the present application, one end of the first positioning member is fixedly connected to the first supporting member, the other end of the first positioning member has a first fitting surface, and the electrode plate has a second fitting surface fitted with the first fitting surface.

[0013] According to an embodiment of the present application, a first positioning column is provided at one end of the second support member away from the base, a first track groove is provided on the second positioning member, and the first positioning column passes through the first track groove and is slidably connected in the first track groove.

[0014] According to an embodiment of the present application, the second support member also includes a second positioning column and a second track groove, the first positioning column passes through the second track groove and is slidably connected to the second track groove, and the second positioning column passes through the first track groove and is slidably connected in the first track groove.

[0015] According to an embodiment of the present application, a second groove is further provided on the base, the second positioning hole is provided in the second groove, and the second support member is connected to the base through the second positioning hole.

[0016] According to an embodiment of the present application, it also includes: a bottom plate, on which a third positioning hole is provided, and the positioning tool is fixedly connected to the bottom plate through the third positioning hole; a second end plate, the electrode plate in the electrolytic cell is located between the first end plate and the second end plate, and the first end plate and the second end plate are also provided with a liquid inlet, a liquid outlet, a gas inlet and a gas outlet.

[0017] A second aspect of the present invention provides an electrolytic cell device, which is assembled using the positioning tooling of the electrolytic cell of the first aspect. The electrolytic cell device of the present invention has precise positioning, high efficiency during assembly, and easy standardized management. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0019] Figure 1 is a schematic structural diagram of a positioning tool provided in some embodiments of the present application; Figure 2 is a schematic structural diagram of positioning tooling provided in other embodiments of the present application; Figure 3 is a structural schematic diagram of positioning tooling provided in some other embodiments of the present application; Figure 4 is a schematic structural diagram of a base provided in some embodiments of the present application; Figure 5 This is a schematic diagram of the structure of the base provided in some embodiments of the present application. Figure 6 is a schematic structural diagram of a first support member provided in some embodiments of the present application; Figure 7 This is a schematic diagram of the structure of the first support member and the base plate provided in some embodiments of the present application; Figure 8 is a schematic structural diagram of the first support member and the base plate provided in some other embodiments of the present application; Figure 9 is a schematic structural diagram of a first support member in some embodiments of the present application; Figure 10 is a schematic structural diagram of a second support member provided in some embodiments of the present application; Figure 11 This is a schematic structural diagram of a second support member positioning a first end plate provided in some embodiments of the present application; Figure 12 is a schematic structural diagram of a base plate provided in some embodiments of the present application; Figure 13 is a schematic structural diagram of a base plate provided in other embodiments of the present application; Figure 14 This is a schematic diagram of the structure of the base plate provided in some embodiments of the present application. Figure 15 is a schematic structural diagram of a positioning tool provided in some embodiments of the present application; Figure 16 This is a schematic structural diagram of positioning tooling provided in some other embodiments of the present application.

[0020] Description of reference numerals: 1: base; 12: first positioning hole; 13: second positioning hole; 14: first groove; 15: second groove; 2: first support member; 21: first positioning member; 210: first threaded hole; 22: second threaded hole; 23: screw; 3: second support member; 30: second positioning member; 31: first positioning column; 32: first track groove; 33: second positioning column; 34: second track groove; 35: third positioning member; 4: first end plate; 5: bottom plate; 51: third positioning hole; 6: second end plate; 7: pole plate. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. In the accompanying drawings, the sizes of layers, regions, and elements and their relative sizes may be exaggerated for clarity. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other unless there is a conflict.

[0022] It should be understood that when an element or layer is referred to as being "on," "adjacent to," "connected to," or "coupled to" another element or layer, it can be directly on, adjacent to, connected to, or coupled to the other element or layer, or there can be intervening elements or layers. Conversely, when an element is referred to as being "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" another element or layer, there can be no intervening elements or layers. It should be understood that while the terms first, second, third, etc. may be used to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions should not be limited by these terms. These terms are merely used to distinguish one element, component, region, layer, or portion from another. Thus, without departing from the teachings of the present application, a first element, component, region, layer, or portion discussed below may be referred to as a second element, component, region, layer, or portion. Furthermore, when a second element, component, region, layer, or portion is discussed, it does not necessarily indicate that the first element, component, region, layer, or portion is present in the present application.

[0023] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In a first aspect of the present application, a positioning tool for an electrolytic cell is provided. Figure 1 The positioning tool includes a base 1; a first support member 2, the first support member 2 is located on the base 1, and a first positioning member 21 is provided on the first support member 2, and the first positioning member 21 is used to fix the electrode plate in the electrolytic cell; a second support member 3, the second support member 3 is located on the base 1, and a second positioning member 30 is provided on the second support member 3, and the second positioning member 30 is used to fix the first end plate in the electrolytic cell.

[0026] In the positioning fixture for the electrolytic cell of the embodiment of the present application, the first positioning member on the first support member can fix the electrode plates in the electrolytic cell (the first positioning member is fixedly connected to the limiting structure of the electrode plates), so that the position of each layer of electrode plates is precisely aligned. The second positioning member on the second support member can fix the first end plate in the electrolytic cell, so that the electrode plates can be stacked and placed on the fixed first end plate. In addition, by changing the relative positions of the first support member and the second support member on the base plate, the positioning fixture can also be adapted for electrolytic cells of different sizes and can be used to fix electrolytic cells located at different positions on the base plate.

[0027] In some embodiments, the shape of the base includes a straight shape and an L shape.

[0028] Furthermore, the base is linear, and the first and second support members are located at both ends of the linear base. The first and second support members can position the electrolytic cell, and the first positioning member on the first support member can also position the electrode plates in the electrolytic cell by overlapping.

[0029] Further, refer to Figure 2 , the base 1 is L-shaped. The base is L-shaped, and the base has a transverse section and a longitudinal section, the transverse section is provided with the first support member 2 and the second support member 3, and the longitudinal section is provided with the first support member 2 and the second support member 3. In this way, different directions of the electrolytic cell can be limited at the same time, thereby improving the applicability and convenience of the use of the limiting tool, as well as improving the positioning accuracy. Specifically, the first positioning member on the first support member of the transverse section and the second positioning member on the second support member can be positioned in the Y-axis direction, and the first positioning member on the first support member of the longitudinal section and the second positioning member on the second support member can be positioned in the X-axis direction; in addition, the first positioning member can also be superimposed to position the laminated plate in the Z-axis direction, where the X-axis, Y-axis, and Z-axis are coordinate axes. At the same time, multiple positioning tooling can also be used to accurately position the electrolytic cell.

[0030] In other embodiments, reference Figure 3 The base is provided with two second support members 3 and one first support member 2. The base is an L-shaped base having a transverse section and a longitudinal section. The transverse section is provided with the first support member 2 and the second support member 3, and the longitudinal section is provided with the second support member 3. Specifically, the first positioning member on the first support member of the transverse section and the second positioning member on the second support member can be used for positioning in the Y-axis direction, and the second positioning member on the second support member can be used for positioning in the X-axis direction. In addition, the first positioning member can also be stacked to position the laminated electrode in the Z-axis direction, where the X-axis, Y-axis, and Z-axis are coordinate axes. At the same time, multiple L-shaped positioning fixtures can be used to accurately position the electrolytic cell.

[0031] In some embodiments, the heights of the first support member and the second support member are not particularly limited and can be adjusted according to the actual height of the electrolytic cell.

[0032] Optionally, the height of the first support member is 400-800 mm, and the height of the first support member and the height of the electrolytic cell are not less than the overall height of the electrolytic cell.

[0033] Optionally, the height of the second support member is 10-50 mm. The height of the second support member is usually lower than the height of the bottom end plate of the electrolytic tank.

[0034] In some embodiments, reference Figure 4The base 1 is provided with a first positioning hole 12, and the first support member 2 is connected to the base via the first positioning hole 12. This allows the first support member to be connected to the base at different positions. The first support member can be adjusted based on the position of the first positioning hole to accommodate electrolytic cells of different positions or sizes.

[0035] As an example, the first support member is connected to the base plate through the first positioning hole by fixing with a nut.

[0036] In some embodiments, reference Figure 4 A first groove 14 is provided on the base, the first positioning hole 12 is located in the first groove 14 , and the first support member 2 is connected to the base 1 through the first positioning hole 12 .

[0037] In other embodiments, reference Figure 5 The base is a straight-line base, a first groove 14 is provided on the base, the first positioning hole 12 is located in the first groove 14, and the first support member 2 is connected to the base 1 through the first positioning hole 12.

[0038] In some embodiments, reference Figure 6 The first support member 2 is provided with a second threaded hole 22, and the second threaded hole 22 is used to fix the first positioning member 21. In this way, the position of the first positioning member can be adjusted by the threaded holes at different positions on the first support member.

[0039] In some embodiments, reference Figure 6 The first positioning member 21 is provided with a first threaded hole 210 , and the first threaded hole 210 can fine-tune the position of the first positioning member located on the first supporting member.

[0040] In some embodiments, reference Figure 7 One end of the first positioning member 21 is fixedly connected to the first support member 2, and the other end of the first positioning member 21 has a first fitting surface, and the electrode plate 7 has a second fitting surface that fits with the first fitting surface. In this way, the first positioning member can be used to position the electrode plate. In addition, the first positioning members can be stacked to achieve positioning of stacked electrode plates.

[0041] Furthermore, the first interlocking surface is interlocked with the second interlocking surface. When interlocked, the first interlocking surface and the second interlocking surface are in close contact with each other, thereby achieving the fixation of the electrode plate by the first positioning member. The shapes of the first interlocking surface and the second interlocking surface are not particularly limited. For example, the first interlocking surface and the second interlocking surface are two mutually perpendicular planes; or the first interlocking surface is fan-shaped, trapezoidal, or circular, and the second interlocking surface is concave or convex.

[0042] Further, refer to Figure 7 and 8 The first positioning member can be engaged with the four corners of the electrode plate, can be engaged with other parts of the electrode plate, or can be engaged with a combination of the four corners and other parts.

[0043] Further, refer to Figure 9 The first support members 2 can also be stacked, with adjacent first support members secured by screws 23. This increases positioning in the Z-axis direction. For example, initially only 20 plates need to be secured, but later, when the electrolytic cell is heightened, 100 plates may be required. In this case, the plates can be positioned by stacking the first support members and then superimposing the first positioning member.

[0044] In some embodiments, reference Figure 4 The base is provided with a second positioning hole 13, through which the second support member 3 is connected to the base 1. This allows the second support member to be connected to the base at different positions. The second support member can be adjusted based on the position of the second positioning hole to accommodate electrolytic cells of different locations or sizes.

[0045] As an example, the second support member is connected to the base plate through the second positioning hole by fixing with a nut.

[0046] In some embodiments, a first positioning post is provided at one end of the second support member away from the base, and a first track groove is provided on the second support member, in which the first positioning post is slidably disposed. Thus, the position of the second support member can be fine-tuned by sliding the first positioning post relative to the first track groove, thereby accommodating the positioning of electrolytic cells of different locations or sizes.

[0047] Furthermore, the first positioning column and the first guide rail groove are fixedly connected by bolts.

[0048] In other embodiments, reference Figure 10, a second support member is provided on the base 1, and the second support member also includes a third positioning member 35, and one end of the third positioning member 35 is provided with a second positioning column 33 and a second track groove 34, the first positioning column 31 passes through the second track groove 34 and is slidably connected to the second track groove 34, and the second positioning column 33 passes through the first track groove 32 and is slidably connected in the first track groove. In this way, the position of the second support member can be fine-tuned by sliding the relative position of the first positioning column and the second track groove, and by sliding the relative position of the second positioning column and the first track groove, so as to meet the positioning of the first end plate of the electrolytic cell of different positions or different sizes. In addition, the distance adjustment in different directions can also be achieved, thereby enhancing the adaptability of electrolytic cells of various sizes. For example, referring to Figure 11 The second support member positions the first end plate by fixing the first end plate in the electrolytic cell through the second positioning member 30, and other components in the second support member can fine-tune the position of the second support member to meet the fixation of the first end plate.

[0049] Furthermore, the first positioning column and the second track groove are fixedly connected by bolts. The second positioning column and the first track groove are fixedly connected by bolts.

[0050] In some embodiments, reference Figure 4 The base is further provided with a second groove 15 , the second positioning hole 13 is provided in the second groove 15 , and the second support member 3 is connected to the base 1 through the second positioning hole 13 .

[0051] In other embodiments, reference Figure 5 The base is a straight-line base, and a second groove 15 is further provided on the base. The second positioning hole 13 is provided in the second groove 15 , and the second support member 3 is connected to the base 1 through the second positioning hole 13 .

[0052] In some embodiments, reference Figure 12 and 13 , the positioning fixture also includes: a base plate 5, a third positioning hole 51 is provided on the base plate 5, and the positioning fixture and the base plate 5 are fixedly connected through the third positioning hole 51. A plurality of third positioning holes are provided on the base plate so that the base 1 can be installed at any required position. For example, three fixed distances can be set between the base 1 and the base plate 5 to match electrolytic cells of different sizes, such as setting the moving spacing to 5cm, 10cm, etc., and more fixed distances can be set as needed to adapt to electrolytic cells of different sizes and types, so as to achieve the effect of preliminary positioning of electrolytic cells of different sizes, and then use high-support parts and low-support parts to achieve more precise positioning, thereby limiting the freedom of the electrolytic cell.

[0053] In other embodiments, reference Figure 14 The base 1 is a straight line, and the base 1 can be arranged at different positions of the bottom plate to meet the rough positioning of the electrolytic cell. In addition, two straight line bases can also be combined to form an L-shaped positioning.

[0054] In some embodiments, the positioning fixture further includes a second end plate 6. The electrode plates in the electrolytic cell are positioned between the first and second end plates, which are further provided with a liquid inlet, a liquid outlet, a gas inlet, and a gas outlet. This allows the first support member to position the second end plate, thereby improving the positioning accuracy and aesthetics of the electrolytic cell.

[0055] As an example, the method of fixing the positioning fixture and the base plate through the third positioning hole includes fixing with nuts.

[0056] It is understandable that the number of third positioning holes on the bottom plate of the electrolytic cell tooling is not particularly limited, so that the base can be installed in different hole positions, thereby enhancing the positioning of cells of different specifications, thereby improving the adaptability of the positioning tooling.

[0057] In some embodiments, reference Figure 15 , during the electrolytic cell assembly process, multiple Figure 3 The positioning fixture shown is used for positioning. Two second supports 3 and one first support 2 are provided on the base of each positioning fixture. The base is an L-shaped base. The base has a transverse section and a longitudinal section. The transverse section is provided with the first support 2 and the second support 3, and the longitudinal section is provided with the second support 3. When the positioning fixture is used to position and adjust the electrolytic cell, only the first support can be moved, only the second support can be moved, or the first support and the second support can be moved at the same time. The position adjustment of the first support can also be achieved by setting the relative position of the first positioning member and the first support, and the position adjustment of the second support can also be achieved by sliding the relative position of the first positioning column and the second track groove, and by sliding the relative position of the second positioning column and the first track groove.

[0058] In some embodiments, reference Figure 16 , during the electrolytic cell assembly process, multiple Figure 2The positioning fixture shown is used for positioning. The base of each positioning fixture is L-shaped, and the base has a transverse section and a longitudinal section. The transverse section is provided with the first support member 2 and the second support member 3, and the longitudinal section is provided with the first support member 2 and the second support member 3. . In this way, multiple positioning fixtures can further improve the accuracy of positioning. Specifically, when the positioning fixture is used to position and adjust the electrolytic cell, only the first support member can be moved, only the second support member can be moved, or the first support member and the second support member can be moved at the same time. The position adjustment of the first support member can also be achieved by setting the relative position of the first positioning member and the first support member, and the position adjustment of the second support member can also be achieved by sliding the relative position of the first positioning column and the second track groove, and by sliding the relative position of the second positioning column and the first track groove.

[0059] It is understandable that Figure 15 and Figure 16 As long as the first support member is provided to fix the electrode plate, its height can be higher than or lower than the second end plate.

[0060] A second aspect of the present invention provides an electrolytic cell device, which is assembled using the positioning tooling of the electrolytic cell of the first aspect. The electrolytic cell device of the present invention has precise positioning, high efficiency during assembly, and easy standardized management.

[0061] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present application. The directional terms "inside" and "outside" refer to the inside and outside relative to the outline of the component itself. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "on top of other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Therefore, the exemplary term "above..." can include both "above..." and "below..." orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here will be interpreted accordingly.

[0062] It should also be noted that references to "some embodiments," "other embodiments," "embodiments," etc., in this application refer to specific features, structures, or characteristics described in conjunction with such embodiments as are included in at least one embodiment generally described in this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in conjunction with any embodiment, it is intended that the realization of such feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0063] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0064] It should also be noted that the above are only preferred embodiments of the present application and do not limit the scope of patent protection of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the present application.

Claims

1. A positioning tool for an electrolytic cell, characterized in that: include Base; A first support member, the first support member is located on the base, a first positioning member is provided on the first support member, and the first positioning member is used to fix the electrode plate in the electrolytic cell; A second support member, wherein the second support member is located on the base, and a second positioning member is provided on the second support member, and the second positioning member is used to fix the first end plate in the electrolytic cell.

2. The positioning tool according to claim 1, characterized in that: The base is an L-shaped base, and the base has a transverse section and a longitudinal section. The transverse section is provided with the first support member and the second support member, and the longitudinal section is provided with the first support member and the second support member.

3. The positioning tool according to claim 1, characterized in that: The base is provided with two second supporting members and one first supporting member, The base is an L-shaped base, and the base has a transverse section and a longitudinal section. The transverse section is provided with the first support member and the second support member, and the longitudinal section is provided with the second support member.

4. The positioning tool according to claim 1, characterized in that: The base is provided with a first positioning hole and a second positioning hole, and the first support member is connected to the base through the first positioning hole; The second supporting member is connected to the base through the second positioning hole.

5. The positioning tool according to claim 1, characterized in that: One end of the first positioning member is fixedly connected to the first supporting member. The other end of the first positioning member has a first fitting surface, and the electrode plate has a second fitting surface fitting with the first fitting surface.

6. The positioning tool according to any one of claims 1 to 3, characterized in that: A first positioning column is disposed at one end of the second supporting member away from the base, a first track groove is disposed on the second positioning member, and the first positioning column passes through the first track groove and is slidably connected in the first track groove.

7. The positioning tool according to claim 6, characterized in that: The second support member also includes a third positioning member, one end of which is provided with a second positioning column and a second track groove, the first positioning column passes through the second track groove and is slidably connected to the second track groove, and the second positioning column passes through the first track groove and is slidably connected in the first track groove.

8. The positioning tool according to claim 7, characterized in that: The base is also provided with a second groove, the second positioning hole is provided in the second groove, and the second support member is connected to the base through the second positioning hole.

9. The positioning tool according to claim 1, characterized in that: Also includes: A bottom plate, wherein a third positioning hole is provided on the bottom plate, and the positioning fixture is fixedly connected to the bottom plate through the third positioning hole; The second end plate, the electrode plate in the electrolytic cell is located between the first end plate and the second end plate, and the first end plate and the second end plate are also provided with a liquid inlet, a liquid outlet, a gas inlet and a gas outlet.

10. An electrolytic cell device, characterized in that: The method comprises positioning and assembling the electrolytic cell by using the positioning tool of any one of claims 1 to 9.

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