Potential difference adjusting device for assembling alkaline electrolytic cell

Abstract

The utility model provides a potential difference adjusting device for assembling an alkaline electrolytic bath. The potential difference adjusting device comprises a base, a ball and a sliding trolley which are sequentially arranged from bottom to top, the base comprises a groove body with a top opening; the balls are arranged on the base through a partition plate with small holes. A cavity is formed between the partition plate and the base; the sliding trolley is arranged on the balls and moves along with rolling of the balls. According to the potential difference adjusting device disclosed by the utility model, the assembling accuracy of the left end pressing plate is ensured through mutual matching of all internal structures, repeated rising and falling placement by manpower is not needed, the assembling efficiency of the alkaline electrolytic bath is greatly improved, and the potential difference adjusting device is suitable for wide-range popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of green energy hydrogen production, in particular to a potential difference adjustment device for alkaline electrolyzer assembly. Background Technique

[0002] An alkaline electrolyzer is a device that uses an alkaline liquid as a medium to convert electrical energy into hydrogen energy by decomposing water. The main components of an alkaline electrolyzer consist of auxiliary accessories such as a right-end pressing plate, a right-end electrode plate, a bipolar plate, a left-end electrode plate, a left-end pressing plate, electrodes, a diaphragm, and tension bolt nuts.

[0003] During the assembly process of a conventional electrolyzer, visual manual positioning assembly is mainly relied on human power assisted by lifting equipment. Especially in the link of assembling the left-end pressing plate, even experienced assembly workers often need to repeatedly correct the positioning back and forth. And during the correction process, it is easy to cause the displacement of the left-end electrode plate under the left-end pressing plate. Therefore, the assembly efficiency is low and the safety risk is extremely high.

[0004] CN117127201A discloses a support device for electrolyzer module assembly positioning and an electrolyzer device. The support device for electrolyzer module assembly positioning includes a bottom plate, side plates, a pull rod, an anode end plate, a cathode end plate, a pressing mechanism, and a locking mechanism. This support device has a simple structure and is easy to use, and can quickly and accurately combine and connect each electrolyzer module together, which is of great significance for the development of large-scale electrolyzers; the spring of the pressing mechanism can absorb or supplement the deformation of the electrolyzer caused by temperature changes, so that the entire electrolyzer block is always in a pressed state.

[0005] CN115961301A discloses an assembly method of an electrolyzer and an electrolyzer. The assembly method of the electrolyzer includes: determining the length of the first deflection control rod; assembling the first deflection control rod into the assembly hole of the end plate during the process of stacking the stack, the conductive plate, and the end plate together to form the electrolyzer to be assembled; obtaining the second deflection control rod and assembling the second deflection control rod into the end plate and the first deflection control rod; obtaining a plurality of bolts and a plurality of nuts and assembling the plurality of bolts and the plurality of nuts to the edge of the end plate to form an electrolyzer.

[0006] CN220074456U discloses a pneumatic fixture for a proton exchange membrane electrolyzer, which includes a bottom plate. On the outer wall of the top of the bottom plate near one side, a first cross plate is welded. On the outer wall of the top of the bottom plate near the other side, a second cross plate is welded. A cylinder is installed on the outer wall of the second cross plate. One end of the cylinder is welded with a clamping plate. A limiting mechanism is arranged near the upper end of the outer wall of the first cross plate. A protection mechanism is arranged near the middle of the outer wall of the first cross plate. The limiting mechanism includes a horizontal groove which is penetrated and opened on the outer wall of the first cross plate. By setting the limiting mechanism, the position of the electrolyzer can be further limited, avoiding movement during subsequent processing operations, affecting processing, and thus affecting the effect during subsequent proton exchange membrane electrolysis operations. Moreover, it can well slow down the impact force on the electrolyzer, avoiding direct impact contact between the electrolyzer and the outer wall of the first cross plate, resulting in damage. However, this pneumatic fixture for a proton exchange membrane electrolyzer only has a limiting effect on the outer periphery of the tank body. By simply using the "peripheral fixation method" to ensure that the electrolyzer does not shift during the processing, it cannot have a beneficial effect on the mutual positioning of the holes, grooves, flow channels, etc. on each electrode plate and electrode frame of the electrolyzer.

[0007] Aiming at the problems of low assembly efficiency and high safety risk during the assembly process of the electrolyzer described above, the present utility model proposes a position difference adjustment device for assisting in the assembly of an alkaline electrolyzer. Summary of the Utility Model

[0008] In view of the problems existing in the prior art, the present utility model provides a position difference adjustment device for the assembly of an alkaline electrolyzer. Through the mutual cooperation of structures such as a base, balls, and a sliding trolley, the efficient assembly of the left end pressing plate in the alkaline electrolyzer is realized, thereby improving the assembly efficiency and reducing the safety risk.

[0009] To achieve this purpose, the present utility model adopts the following technical solutions:

[0010] The present utility model provides a position difference adjustment device for the assembly of an alkaline electrolyzer. The position difference adjustment device includes a base, balls, and a sliding trolley arranged in sequence from bottom to top. The base includes a tank body with an open top. The balls are arranged on the base through a partition plate with small holes. A cavity is formed between the partition plate and the base. The sliding trolley is arranged on the balls and moves along with the rolling of the balls.

[0011] The height difference adjustment device for the assembly of alkaline electrolyzers described in the present utility model has a simple structure and a reasonable design. The height difference adjustment device includes a base, ball bearings, and a sliding trolley arranged in sequence from bottom to top. The base is in the shape of a groove, and the ball bearings are arranged on the base through a partition with small holes. The sliding trolley can move on the ball bearings as the ball bearings roll; through the mutual cooperation of components such as the base, ball bearings, sliding trolley, and partition, the accuracy of the assembly of the left-end pressing plate in the alkaline electrolyzer is achieved, eliminating the need for multiple visual alignments and multiple manual handling for lifting and placing, significantly improving the assembly efficiency of the alkaline electrolyzer. A cavity is formed between the partition and the base, and the height of the cavity is less than the diameter of the ball bearings. The ball bearings are in contact with the inner bottom surface of the base, and lubricating oil is placed in the cavity to ensure the rolling effect of the ball bearings during operation.

[0012] Preferably, the diameter of the small holes is D1, and the diameter of the ball bearings is D2, where 1 / 2D2 < D1 < D2. The small holes can not only limit the position of the ball bearings but also ensure the supporting and rolling functions of the ball bearings.

[0013] Preferably, an oil filling port is provided on the partition, and lubricating oil can be added through the oil filling port to enable the rolling of the ball bearings during operation.

[0014] Preferably, the internal length of the base is L1, and the length of the sliding trolley is L2, where 1 / 8L1 ≤ L2 ≤ 1 / 2L1.

[0015] Preferably, the internal width of the base is W1, and the width of the sliding trolley is W2, where 1 / 8W1 ≤ W2 ≤ 1 / 2W1.

[0016] Preferably, the height of the sliding trolley is H1, and the height from the top of the trolley to the inner bottom of the base is H2, where H1 < H2 ≤ 2H1.

[0017] By specifically defining the internal dimensions of the base and the length, width, and height of the sliding trolley in the present utility model, 1 / 8L1 ≤ L2 ≤ 1 / 2L1, 1 / 8W1 ≤ W2 ≤ 1 / 2W1, H1 < H2 ≤ 2H1, the supporting effect of the sliding trolley on the left-end pressing plate and sufficient movement space in the horizontal and vertical directions are ensured.

[0018] Preferably, the height difference adjustment device further includes a soft pad; the soft pad covers the upper surface and side surfaces of the sliding trolley, which can increase the friction between the sliding trolley and the left-end pressing plate.

[0019] Preferably, elastic members are arranged on the inner sides of the four peripheries of the base, which can play a buffering role during the operation of the sliding trolley, avoiding direct collision with the inner wall of the base and causing the base to fall off.

[0020] Preferably, the elastic members are arranged above the ball bearings and have a gap distance from the ball bearings.

[0021] Preferably, the elastic member is a spring.

[0022] The method for using the elevation difference adjustment device for alkaline electrolyzer assembly provided by the present utility model includes the following steps:

[0023] First, distribute the four elevation difference adjustment devices evenly at 90° above the left end plate. When the left end pressing plate is hoisted and placed on the sliding trolleys of the four elevation difference adjustment devices, due to the universal rolling of the balls, the left end pressing plate can be easily pushed by manpower to move radially and circumferentially. During this process, all the tensioning bolts are symmetrically and sequentially inserted into the bolt holes of the left end pressing plate and then inserted into the bolt holes of the right end pressing plate. At this time, the left end pressing plate is positioned by the bolts inserted circumferentially;

[0024] After that, slowly lift the left end pressing plate until it leaves the surface of the sliding trolley. At this time, the elevation difference adjustment device is slowly pulled out by manpower;

[0025] Finally, slowly lower the left end pressing plate until it is placed above the left end plate. Thus, the precise positioning and installation of the left end pressing plate are completed by the method of elevation difference adjustment.

[0026] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0027] The elevation difference adjustment device for alkaline electrolyzer assembly provided by the present utility model has a simple structure and is convenient to use. The structures inside cooperate with each other to ensure the accuracy of the assembly of the left end pressing plate. The entire assembly process can be quickly completed at one time, without the need for multiple visual alignments and multiple manual handling and lifting and placing. Description of the Drawings

[0028] Figure 1 is a cross-sectional view of the elevation difference adjustment device for alkaline electrolyzer assembly provided by the present utility model.

[0029] Figure 2 is a top view of the elevation difference adjustment device for alkaline electrolyzer assembly provided by the present utility model.

[0030] Figure 3 is a top view of the sliding trolley in the elevation difference adjustment device for alkaline electrolyzer assembly provided by the present utility model.

[0031] Figure 4 is a distribution schematic diagram of the elevation difference adjustment device for alkaline electrolyzer assembly provided by the present utility model during use.

[0032] In the figure: 1-1 - left end pressing plate; 1-2 - left end plate; 1-3 - elevation difference adjustment device;

[0033] 1-3-1 - Base; 1-3-2 - Partition; 1-3-3 - Ball; 1-3-4 - Sliding trolley; 1-3-5 - Cushion; 1-3-6 - Spring. Specific embodiments

[0034] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0035] The present utility model will be further described in detail below. However, the following examples are only simple examples of the present utility model and do not represent or limit the scope of the rights protection of the present utility model. The scope of protection of the present utility model shall be subject to the claims.

[0036] It should be understood that in the description of the present utility model, the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model.

[0037] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0038] It should be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "set", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements.

[0039] For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0040] As a specific embodiment of the present utility model, a position difference adjustment device for alkaline electrolyzer assembly is provided, and its A-A cross-sectional view is as Figure 1 shown, and the top view is as Figure 2 shown.

[0041] The elevation difference adjustment device includes a base 1-3-1, a ball 1-3-3, and a sliding trolley 1-3-4 that are arranged in sequence from bottom to top;

[0042] The base 1-3-1 includes a trough body with an open top; the ball 1-3-3 is arranged on the base 1-3-1 through a partition 1-3-2 with small holes; a cavity is formed between the partition 1-3-2 and the base 1-3-1; the sliding trolley 1-3-4 is arranged on the ball 1-3-3 and moves as the ball 1-3-3 rolls. The top view of the sliding trolley is as shown in Figure 3 shown.

[0043] The diameter of the small holes is D1, and the diameter of the ball 1-3-3 is D2, where 1 / 2D2 < D1 < D2.

[0044] The partition 1-3-2 is provided with an oil filling port.

[0045] The internal length of the base 1-3-1 is L1, and the length of the sliding trolley 1-3-4 is L2, where 1 / 8L1 ≤ L2 ≤ 1 / 2L1.

[0046] The internal width of the base 1-3-1 is W1, and the width of the sliding trolley 1-3-4 is W2, where 1 / 8W1 ≤ W2 ≤ 1 / 2W1.

[0047] The height of the sliding trolley 1-3-4 is H1, and the height from the top of the trolley to the inner bottom of the base is H2, where H1 < H2 ≤ 2H1.

[0048] The elevation difference adjustment device further includes a soft pad 1-3-5; the soft pad 1-3-5 covers the upper surface and the side surface of the sliding trolley 1-3-4.

[0049] Elastic members 1-3-6 are arranged on the inner sides around the base 1-3-1.

[0050] The elastic members 1-3-6 are arranged above the balls 1-3-3 and have a gap distance from the balls 1-3-3.

[0051] The elastic members 1-3-6 are springs.

[0052] As a specific embodiment of the present invention, a method for using the above elevation difference adjustment device for alkaline electrolyzer assembly is further provided, which specifically includes the following steps:

[0053] First, four elevation difference adjustment devices 1-3 are evenly distributed above the left end plate 1-2 at 90°, and the distribution schematic diagram is as shown in Figure 4 shown;

[0054] When the left-end pressing plate 1-1 is hoisted and placed on the sliding trolley 1-3-4 of the four position difference adjusting devices 1-3, due to the universal rolling of the balls 1-3-3, the left-end pressing plate 1-1 can be easily pushed by manpower to move radially and circumferentially. During this process, all the tension bolts are symmetrically inserted into the bolt holes of the left-end pressing plate 1-1 in sequence and inserted into the bolt holes of the right-end pressing plate. At this time, the left-end pressing plate 1-1 is positioned by the bolts inserted circumferentially;

[0055] After that, slowly hoist the left-end pressing plate 1-1 until it leaves the surface of the sliding trolley 1-3-4. At this time, the position difference adjusting device 1-3 is slowly pulled out by manpower;

[0056] Finally, slowly lower the left-end pressing plate 1-1 until it is placed above the left-end electrode plate 1-2. Thus, the precise installation of the left-end pressing plate 1-1 is completed by means of the position difference adjustment 1-3.

[0057] In summary, the position difference adjusting device provided by the present utility model for the assembly of alkaline electrolyzers is convenient to use, ensures the accuracy of the assembly of the left-end pressing plate, eliminates the need for manual visual aiming and multiple lifting and placing operations, greatly improves the assembly efficiency of alkaline electrolyzers, and is suitable for wide promotion and application.

[0058] The applicant declares that the present utility model uses the above embodiments to illustrate the detailed structural features of the present utility model, but the present utility model is not limited to the above detailed structural features, that is, it does not mean that the present utility model must rely on the above detailed structural features to be implemented. Those skilled in the art should understand that any improvement to the present utility model, the equivalent replacement of the components selected by the present utility model, the addition of auxiliary components, and the selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present utility model.

[0059] The preferred embodiments of the present utility model have been described in detail above. However, the present utility model is not limited to the specific details in the above embodiments. Within the technical concept scope of the present utility model, various simple modifications can be made to the technical solution of the present utility model, and these simple modifications all belong to the protection scope of the present utility model.

Claims

1. A differential adjustment device for alkaline electrolyzer assembly, characterized in that, The elevation difference adjustment device includes a base (1-3-1), a ball (1-3-3), and a sliding trolley (1-3-4) that are sequentially arranged from bottom to top; the base (1-3-1) includes a trough body with an open top; the ball (1-3-3) is arranged on the base (1-3-1) through a partition plate (1-3-2) with small holes; a cavity is formed between the partition plate (1-3-2) and the base (1-3-1); the sliding trolley (1-3-4) is arranged on the ball (1-3-3) and moves as the ball (1-3-3) rolls.

2. The level difference adjustment device for alkaline electrolyzer assembly according to claim 1, characterized in that, The diameter of the small holes is D1, and the diameter of the ball (1-3-3) is D2, where 1 / 2D2 < D1 < D2.

3. The level difference adjustment device for alkaline electrolyzer assembly according to claim 1, characterized in that, The partition plate (1-3-2) is provided with an oil filling port.

4. The elevation difference adjustment device for alkaline electrolyzer assembly according to claim 1, characterized in that, The internal length of the base (1-3-1) is L1, and the length of the sliding trolley (1-3-4) is L2, where 1 / 8L1 ≤ L2 ≤ 1 / 2L1.

5. The level difference adjustment device for alkaline electrolyzer assembly according to claim 1, characterized in that, The internal width of the base (1-3-1) is W1, and the width of the sliding trolley (1-3-4) is W2, where 1 / 8W1 ≤ W2 ≤ 1 / 2W1.

6. The differential adjustment device for alkaline electrolyzer assembly according to claim 1, wherein, The height of the sliding trolley (1-3-4) is H1, and the height from the top of the trolley to the inner bottom of the base is H2, where H1 < H2 ≤ 2H1.

7. The level difference adjustment device for alkaline electrolyzer assembly according to claim 1, characterized in that, The elevation difference adjustment device further includes a soft pad (1-3-5); the soft pad (1-3-5) covers the upper surface and the side surface of the sliding trolley (1-3-4).

8. The level difference adjustment device for alkaline electrolyzer assembly according to claim 1, characterized in that, Elastic members (1-3-6) are arranged on the inner sides of the four peripheries of the base (1-3-1).

9. The level difference adjustment device for alkaline electrolyzer assembly according to claim 8, characterized in that, The elastic members (1-3-6) are arranged above the balls (1-3-3) and have a clearance distance from the balls (1-3-3).

10. The level difference adjustment device for alkaline electrolyzer assembly according to claim 8, wherein, The elastic members (1-3-6) are springs.

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