Electrolytic bath frame

Abstract

The utility model relates to the technical field of electrolytic baths, and discloses an electrolytic bath frame with better sealing performance, which comprises at least two frame components (100 / 200) with hollow structures, a plurality of through holes (101a / 101b) are arranged on non-adjacent inner edges of the frame components (100 / 200), and the through holes (101a / 101b) on opposite edges are arranged oppositely or not oppositely.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic cell technology, and more specifically, to an electrolytic cell frame. Background Technology

[0002] Electrolyzers are commonly used hydrogen production components in industrial and residential applications. They typically consist of a frame, proton exchange membrane, sealing gaskets, conductive layers, and electrode plates stacked together. Pure water is passed through the electrolyzer to produce hydrogen and oxygen. Currently, existing frames have open water channels, with the open sections sealed by sealing gaskets to ensure the airtightness of the flow and gas passages. However, with prolonged use, as the sealing gaskets deteriorate or age, the flow and gas passages become partially blocked, affecting the overall performance of the electrolyzer. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an electrolytic cell frame with better sealing performance, which addresses the defect of the above-mentioned electrolytic cells in the prior art where the toughness of the sealing gasket layer decreases or ages after long-term use, causing partial blockage of the flow channel and gas channel.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct an electrolytic cell frame.

[0005] Includes at least two hollow frame components,

[0006] Multiple through holes are provided on the non-adjacent inner edges of the frame assembly.

[0007] The through holes on the opposite sides may be arranged opposite to each other or not opposite to each other.

[0008] In some embodiments, a first rib is provided on the end face of the covering component that covers the through hole.

[0009] In some embodiments, the through hole radially passes through the inner edge of the frame assembly.

[0010] In some embodiments, one side of the through hole is located inside the frame assembly.

[0011] The other side of the through hole is connected to the water inlet hole of the frame assembly.

[0012] In some embodiments, one side of the through hole is located inside the frame assembly.

[0013] The other side of the through hole is connected to the water inlet / outlet through hole of the frame assembly.

[0014] In some embodiments, the first rib is disposed inside the water inlet / water outlet and connected to the second rib outside the water inlet / water outlet, forming an annular sealing rib on the upper end face of the water inlet / water outlet.

[0015] In some embodiments, the second rib is disposed within the inner extension of the frame assembly to form an annular dense convex ring of the hollow structure of the frame assembly.

[0016] In some embodiments, a third rib is provided on the side adjacent to the second rib.

[0017] In some embodiments, it further includes a first sealing layer, a proton exchange membrane, and a second sealing layer.

[0018] The first sealing layer, the proton exchange membrane, and the second sealing layer are stacked between the frame assembly.

[0019] The electrolytic cell frame of this invention includes at least two hollow frame components. Multiple through holes are formed on the non-adjacent inner edges of each frame component, with the through holes on opposite sides arranged oppositely or not oppositely. Compared to existing technologies, by forming multiple through holes on the non-adjacent inner edges of the frame components, the problem of poor sealing between frames can be effectively solved by addressing the issue that existing water tanks, being open structures, may experience poor sealing when the sealing gasket's toughness decreases or ages. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0021] Figure 1 This is a stacked structure diagram of an embodiment of the frame component provided by this utility model;

[0022] Figure 2 This is a perspective view of an embodiment of the frame component provided by this utility model;

[0023] Figure 3 This is a cross-sectional view of an embodiment of the frame component provided by this utility model;

[0024] Figure 4 yes Figure 1 Enlarged view of point A in the middle. Detailed Implementation

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-4As shown, in the first embodiment of the electrolytic cell frame of this utility model, the electrolytic cell frame 10 includes at least two hollow frame components (100 / 200).

[0027] The frame components (100 / 200) include at least a first frame component 100 and a second frame component 200, which can be set as a square or circular structure, and their front and back sides are mirror images.

[0028] It should be noted that the first frame component 100 and the second frame component 200 have the same structure, and the following content corresponds to the first frame component 100;

[0029] Specifically, such as Figure 2 As shown, multiple through holes (101a / 101b) are provided on the non-adjacent inner edges (corresponding to 100b) of the first frame component 100.

[0030] The through holes (101a / 101b) can be configured as a first through hole 101a and a second through hole 101b.

[0031] Each through hole (101a / 101b) has multiple through holes (e.g., 4, 5 or more) to ensure the flow rate and velocity of the water entering and exiting; and

[0032] The flow rate and velocity of the output gas (hydrogen) after electrolysis.

[0033] The first through hole 101a and the second through hole 101b on opposite sides (corresponding to 100b) are set opposite to each other or not opposite to each other.

[0034] The first through hole 101a and the second through hole 101b can be arranged diagonally; or

[0035] The first through hole 101a and the second through hole 101b can be arranged opposite to each other; or

[0036] The first through hole 101a and the second through hole 101b can be set in a relatively staggered manner.

[0037] Using this technical solution, by opening multiple through holes (101a / 101b) on the non-adjacent inner edges (corresponding to 100b) of the frame assembly (100 / 200), the problem of the existing water tank being an open structure and the electrolytic cell being partially blocked by sinking when the toughness of the sealing gasket layer decreases or ages after long-term use can be effectively solved.

[0038] In some implementations, such as Figure 2 and Figure 4 As shown, a first protruding rib 104a is provided on the end face of the covering assembly 103 that covers the first through hole 101a and the second through hole 101b.

[0039] The first rib 104a can support the stacked first sealing layer 400 or second sealing layer 500, and prevent the first sealing layer 400 or second sealing layer 500 from being squeezed and partially sinking when sealing the frame assembly (100 / 200), which would cause the seal to be incomplete.

[0040] In some implementations, such as Figure 2 As shown, the first through hole 101a and the second through hole 101b radially pass through the inner edge (corresponding to 100b) of the first frame assembly 100 or the second frame assembly 200 to form a water inlet passage or a water return passage; and

[0041] Gas (hydrogen) output pathway.

[0042] In some implementations, such as Figure 2 As shown, one side of the first through hole 101a and the second through hole 101b is disposed inside the first frame assembly 100 or the second frame assembly 200.

[0043] The first frame assembly 100 or the second frame assembly 200 is provided with a water inlet through hole 102a and a water outlet through hole 102b.

[0044] The other side of the first through hole 101a and the second through hole 101b is connected to the water inlet through hole 102a / water outlet through hole 102b of the first frame assembly 100 or the second frame assembly 200.

[0045] The inlet hole 102a and the outlet hole 102b are connected to the hollow structure (corresponding to 100a) of the first frame assembly 100 through the first through hole 101a and the second through hole 101b to form a water flow channel.

[0046] In some implementations, such as Figure 2 As shown, the first rib 104a is disposed inside the water inlet hole 102a / water outlet hole 102b, and the two ends of the first rib 104a are connected to the two ends of the second rib 104b outside the water inlet hole 102a / water outlet hole 102b, forming an annular sealing rib on the upper end face of the water inlet hole 102a / water outlet hole 102b.

[0047] In some implementations, such as Figure 2 As shown, the second rib 104b is disposed on the inner extension of the first frame assembly 100 and extends along the inner frame of the first frame assembly 100 to form an annular dense convex ring of the hollow structure 100a of the first frame assembly 100.

[0048] In some implementations, such as Figure 2 and Figure 4As shown, a third rib 104c is provided on the adjacent side of the second rib 104b.

[0049] The third rib 104c extends along the outer edge of the first frame assembly 100 and cooperates with the second rib 104b to form a sealing ring for the positioning hole 110.

[0050] In some implementations, such as Figure 1 As shown, it also includes a first sealing layer 400, a proton exchange membrane 300, and a second sealing layer 500.

[0051] The first sealing layer 400, the proton exchange membrane 300, and the second sealing layer 500 are stacked between the frame assembly (100 / 200).

[0052] When using the existing technology with an open structure for the water tank, the diffusion layer of the anode is a titanium mesh and titanium felt, and the diffusion layer of the cathode is a carbon felt, stainless steel felt and stainless steel mesh.

[0053] The thickness of any of its diffusion layers is approximately 2 mm, and its voltage is approximately 1.9 V.

[0054] Furthermore, when silicone sealant is used, its pressure resistance is approximately 1.5 MPa.

[0055] In this technical solution, a frame with a through-hole (101a / 101b) structure is used, and the stacking thickness of any diffusion layer is about 1.5mm. The compression of the diffusion layer is thinner than that mentioned above, which can further reduce the resistance.

[0056] Its voltage is approximately 1.85V, and its power consumption is even lower.

[0057] Its pressure resistance is approximately 3 MPa, which further improves the overall sealing performance and thus extends the service life of the electrolytic cell.

[0058] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. An electrolytic cell frame, characterized in that, Includes at least two hollow frame components, Multiple through holes are provided on the non-adjacent inner edges of the frame assembly. The through holes on opposite sides may be arranged opposite to each other or not opposite to each other; A first protruding rib is provided on the end face of the cover component that covers the through hole; The through hole radially passes through the inner edge of the frame assembly; One side of the through hole is located on the inner side of the frame assembly. The other side of the through hole is connected to the water inlet / outlet through hole of the frame assembly; The first convex rib is disposed on the inner side of the water inlet hole / water outlet hole and connected to the second convex rib on the outer side of the water inlet hole / water outlet hole, forming an annular sealing convex ring on the upper end face of the water inlet hole / water outlet hole; The second rib is disposed on the inner extension of the frame assembly to form an annular dense convex ring of the hollow structure of the frame assembly; A third rib is provided on the adjacent side of the second rib; The third rib extends along the outer edge of the first frame assembly and cooperates with the second rib to form a sealing ring for the positioning hole.

2. The electrolytic cell frame according to claim 1, characterized in that, It also includes a first sealing layer, a proton exchange membrane, and a second sealing layer. The first sealing layer, the proton exchange membrane, and the second sealing layer are stacked between the frame components.

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