Electrolytic tank supporting structure and supporting device

Abstract

According to the electrolytic bath supporting structure and the supporting device, the supporting structure supports an electrolytic bath by arranging the pair of supporting legs connected with the supporting plates, meanwhile, the supporting rods are arranged to connect the supporting legs on the two sides, and one end of each supporting rod can move up and down along the sliding grooves formed in the corresponding supporting leg; the distance between the supporting legs on the two sides is adjusted, then the distance between the supporting plate and the lower surface of the electrolytic cell can be adjusted, the supporting legs on the two sides are fixedly connected through the reinforcing connecting rods, and the stability of the supporting structure is improved while the supporting legs on the two sides are prevented from generating relative displacement. According to the supporting structure disclosed by the utility model, through cooperative use of the components, stable supporting of the electrolytic cell is realized, and the defects that the electrolytic cell deforms and leaks due to the fact that the length-diameter ratio of a traditional hydrogen production electrolytic cell is too large and the middle part of the electrolytic cell is not fully supported at the working temperature of the electrolytic cell, and then the electrolytic cell stops working are overcome.

Description

Technical Field

[0001] This application relates to the technical field of electrolyzer supports, and particularly to an electrolyzer support structure and a support device. Background Art

[0002] The electrolytic hydrogen production technology is a process that electrolyzes water into hydrogen and oxygen by electrolysis. The existing hydrogen production technology routes mainly include: alkaline water electrolysis for hydrogen production, PEM water electrolysis for hydrogen production, anion exchange membrane electrolysis for hydrogen production, solid oxide water electrolysis for hydrogen production, etc. Among them, the alkaline water electrolysis for hydrogen production is relatively mature and has become a widely used hydrogen production method at present.

[0003] The electrolyzer is the most core equipment in the alkaline water electrolysis for hydrogen production method. It consists of 200 - 400 electrolytic cells, a fastening system, and end plates. Its aspect ratio is too large. Taking the electrolyzer for hydrogen production with 1000 Nm 3 / h water as an example, its length is generally 6 m, its diameter is generally 2 m, and its weight is close to 60 tons. Only a dozen tie bolts and end plates are used to fasten hundreds of electrolytic cells, and the central part of the electrolyzer is insufficiently supported.

[0004] The electrolyzer usually operates in an environment with a temperature of 90 ± 5°C, which will cause the gaskets between the electrolytic cells to expand and contract due to thermal expansion and contraction. Macroscopically, the electrolyzer will become longer or shorter in the length direction with temperature changes. Therefore, a rolling device is generally added when one side end plate of the electrolyzer contacts the ground, so that the electrolyzer can expand and contract freely along the length direction. However, when the temperature is too high or too low, the compression amount of the gasket may instantaneously exceed the absorption speed of the two - end disc springs, resulting in the bipolar plate falling under the action of gravity, causing the electrolyzer sealing gasket to fail and leak, and then leading to the shutdown of the electrolyzer. Utility Model Content

[0005] This application provides an electrolyzer support structure and a support device to solve the problems that the electrolyzer for hydrogen production has a too large aspect ratio, and due to insufficient support in the middle part of the electrolyzer at the working temperature of the electrolyzer, deformation of the electrolyzer occurs, leakage appears, and then the electrolyzer shuts down.

[0006] In the first aspect, this application provides an electrolyzer support structure, including a pair of symmetrically arranged legs. The top of the legs is provided with a support plate matching the arc of the electrolyzer;

[0007] At least one support rod is connected between the pair of legs. One end of the support rod is rotatably connected to the side surface of one leg, and the other end is slidably connected to the side surface of the other leg and can slide up and down along the chute opened on this side leg;

[0008] The support rod is connected to the opposite side surfaces or the side surfaces in the same vertical plane between the pair of legs;

[0009] A pair of support legs are also connected by a horizontally arranged strengthening link rod.

[0010] Optionally, a pair of support legs are connected by two support rods;

[0011] One end of the support rod is rotatably connected to the side surface of one support leg, and the other end is slidably connected to the other support leg, and can slide up and down along a chute opened on this side support leg;

[0012] The support rods are connected to the opposite side surfaces or the side surfaces in the same vertical plane between a pair of support legs;

[0013] The two support rods are arranged in a cross shape.

[0014] Optionally, the cross position of the two cross - arranged support rods is connected by a support shaft.

[0015] Optionally, the support plate includes a lower protective plate and an upper insulating plate;

[0016] The protective plate is fixedly connected or rotatably connected to the support leg;

[0017] The insulating plate is detachably connected to the protective plate.

[0018] Optionally, the bottom of the support leg is also connected to the base.

[0019] The present application provides an electrolytic cell support structure. By providing a pair of support legs connected with a support plate to realize the support of the electrolytic cell, and at the same time providing support rods to connect the support legs on both sides, and one end of the support rod can move up and down along a chute opened on the support leg to realize the adjustment of the distance between the support legs on both sides, and further the distance between the support plate and the lower surface of the electrolytic cell can be adjusted. A strengthening link rod is also provided to connect and fix the support legs on both sides, preventing relative displacement of the support legs on both sides and enhancing the stability of the support structure. Through the combined use of the above components, the support structure of the present application realizes the stable support of the electrolytic cell, overcomes the drawbacks of the traditional hydrogen - producing electrolytic cell. Due to the too large length - diameter ratio, at the working temperature of the electrolytic cell, the electrolytic cell deforms and leaks because the middle part of the electrolytic cell is not sufficiently supported, and then the electrolytic cell stops operating.

[0020] In a second aspect, the present application provides an electrolytic cell support device, including a plurality of the electrolytic cell support structures provided in the first aspect above;

[0021] The plurality of electrolytic cell support structures are arranged along the axis direction of the electrolytic cell.

[0022] In a possible implementation, multiple electrolytic cell support structures are fixedly connected by a pair of connecting ribs respectively arranged on both sides of the electrolytic cell support structures. By using a pair of connecting ribs respectively arranged on both sides of the electrolytic cell support structures to connect multiple electrolytic cell support structures into a whole, the stability of the electrolytic cell support device is improved.

[0023] In another possible implementation, two adjacent electrolytic cell support structures are connected by a pair of connecting members respectively arranged on both sides of the electrolytic cell support structures. By connecting two adjacent electrolytic cell support structures pairwise through the connecting members, it has the characteristics of being adjustable and having strong ground adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a front view structural schematic diagram of the electrolytic cell support structure provided by an embodiment of the present application;

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the electrolytic cell support structure provided by an embodiment of the present application;

[0027] Figure 3 It is a structural schematic diagram of the support plate provided by an embodiment of the present application;

[0028] Figure 4 It is a structural schematic diagram of the support plate provided by another embodiment of the present application;

[0029] Figure 5 It is a front view structural schematic diagram of the electrolytic cell support device provided by an embodiment of the present application;

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the electrolytic cell support device provided by an embodiment of the present application;

[0031] Figure 7 It is a front view structural schematic diagram of the electrolytic cell support device provided by another embodiment of the present application;

[0032] Figure 8 It is a three-dimensional structural schematic diagram of the electrolytic cell support device provided by another embodiment of the present application.

[0033] DESCRIPTION OF THE REFERENCE NUMERALS:

[0034] 1, leg;

[0035] 2. Support plate;

[0036] 3. Support rod;

[0037] 4. Reinforcing link;

[0038] 5. Connecting rib;

[0039] 6. Connector;

[0040] 11. Slide groove;

[0041] 12. Base;

[0042] 21. Protective plate;

[0043] 22. Insulating plate;

[0044] 31. Support shaft. Detailed implementation manners

[0045] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts also belong to the scope of protection of the present application.

[0046] As Figure 1 and Figure 2 shown, the present application provides an electrolytic cell support structure, including a pair of symmetrically arranged legs 1. At the top of the legs 1, there is a support plate 2 that matches the curvature of the electrolytic cell;

[0047] Between the pair of legs 1, they are connected by at least one support rod 3. One end of the support rod 3 is rotatably connected to the side surface of one leg 1, and the other end is slidably connected to the other leg 1 and can slide up and down along the slide groove 11 opened on this side of the leg 1;

[0048] The support rod 3 is connected to the opposite side surfaces or the side surfaces in the same vertical plane between the pair of legs 1;

[0049] Between the pair of legs 1, they are also connected by a horizontally arranged reinforcing link 4.

[0050] In the present application, when one end of the support rod 3 is rotatably connected to the side surface of one leg 1, it can be connected to the upper part or the lower part of this side of the leg 1.

[0051] In use, place the electrolytic cell support structure below the electrolytic cell to be supported. Set the two legs 1 on both sides of the vertical plane where the central axis of the electrolytic cell is located. Move the support rod 3 along the sliding groove on the leg 1 to adjust the distance between the two legs 1, and then adjust the distance between the leg 1 and the lower surface of the electrolytic cell, so that the support plate 2 can closely adhere to the lower surface of the electrolytic cell.

[0052] At this time, connect and fix the legs 1 on both sides through the strengthening connecting rod 4 (the strengthening connecting rod 4 is a stud or a bolt), so as to realize the installation and use of the support structure.

[0053] The present application provides an electrolytic cell support structure. By providing a pair of legs 1 connected with a support plate 2 to support the electrolytic cell, and at the same time providing a support rod 3 to connect the legs 1 on both sides, and one end of the support rod 3 can move up and down along the sliding groove opened on the leg 1 to adjust the distance between the legs 1 on both sides, and then the distance between the support plate 2 and the lower surface of the electrolytic cell can be adjusted. A strengthening connecting rod 4 is also provided to connect and fix the legs 1 on both sides. While preventing the relative displacement of the legs 1 on both sides, the stability of the support structure is enhanced. The support structure of the present application realizes the stable support of the electrolytic cell through the combined use of the above components, overcoming the disadvantages of the traditional hydrogen production electrolytic cell. Due to the too large length-diameter ratio, the electrolytic cell deforms and leaks at the working temperature of the electrolytic cell because there is not enough support in the middle part of the electrolytic cell, and then the electrolytic cell stops operating.

[0054] Optionally, the pair of legs 1 are connected by two support rods 3;

[0055] One end of the support rod 3 is rotatably connected to the side surface of one leg 1 on one side, and the other end is slidably connected to the other leg 1 on the other side, and can slide up and down along the sliding groove 11 opened on the leg 1 on this side;

[0056] The support rod 3 is connected to the opposite side surfaces or the side surfaces in the same vertical plane between the pair of legs 1;

[0057] The two support rods 3 are arranged in a crosswise manner.

[0058] In the present application, the pair of legs 1 are connected by two support rods 3. This setting method can improve the strength of the support structure and increase the stability of the support.

[0059] Optionally, the cross position of the two crosswise arranged support rods 3 is connected by a support shaft 31.

[0060] In the present application, the cross position of the two crosswise arranged support rods 3 is connected by a support shaft 31. This method can achieve the purpose of synchronously adjusting the moving distances of the two support rods 3 on the legs 1 on both sides.

[0061] Such as Figure 3 AndFigure 4 As shown, optionally, the support plate 2 includes a lower protective plate 21 and an upper insulating plate 22;

[0062] The protective plate 21 is fixedly connected or rotatably connected to the support leg 1;

[0063] The insulating plate 22 is detachably connected to the protective plate 21.

[0064] In this application, the insulating plate 22 can be fixed (such as by bonding) to the protective plate 21 by splicing multiple insulating strips, so as to better fit the lower surface of the electrolytic cell. And when one of the insulating strips is damaged in this multiple-splicing method, only the damaged insulating strip needs to be replaced, instead of replacing the entire insulating plate, thus achieving the purpose of saving maintenance costs.

[0065] When the insulating plate 22 is fixed to the protective plate 21 by splicing multiple insulating strips, the insulating strips are arranged in a multi-layer staggered manner (at least two layers). When fixing, there should be a complete insulating strip below the splicing gap between adjacent insulating strips. This setting method is used to prevent current from conducting to the protective plate 21 and the support leg 1 through the gap between the insulating strips when the electrolytic cell leaks electricity, so as to achieve a better insulating effect.

[0066] In this application, the protective plate 21 is fixedly connected or rotatably connected to the support leg 1. When the protective plate 21 is fixedly connected to the support leg 1, this connection method can be integrally formed or welded; when the protective plate 21 is rotatably connected to the support leg 1, this connection method can be achieved through a hinge or a ball joint. The above-mentioned fixed connection method has the characteristics of good stability; the rotatable connection method has the advantages of strong adaptability and adjustable.

[0067] Optionally, the bottom of the support leg 1 is also connected to the base 12.

[0068] In this application, connecting the base 12 to the bottom of the support leg 1 can increase the stress area of the ground (or the support surface for placing the support structure), reduce the pressure on the ground; and the setting of the base 12 can improve the support stability of the support structure.

[0069] A support structure for an electrolytic cell has the following usage process:

[0070] When in use, place the support structure of the electrolytic cell under the electrolytic cell to be supported, set the two support legs 1 on both sides of the vertical plane where the central axis of the electrolytic cell is located, and move the support rod 3 along the chute on the support leg 1 to adjust the distance between the two support legs 1, and then adjust the distance between the support leg 1 and the lower surface of the electrolytic cell, so that the support plate 2 can closely adhere to the lower surface of the electrolytic cell.

[0071] At this time, the legs 1 on both sides are connected and fixed by the reinforcing connecting rod 4, so as to realize the installation and use of the support structure.

[0072] As Figure 5 and Figure 6 shown, the present application provides an electrolytic cell support device, including a plurality of the electrolytic cell support structures provided above;

[0073] The plurality of electrolytic cell support structures are arranged along the axial direction of the electrolytic cell;

[0074] The plurality of electrolytic cell support structures are fixedly connected by a pair of connecting ribs 5 respectively arranged on both sides of the electrolytic cell support structure.

[0075] When the electrolytic cell support device of the present application is in use, according to the electrolytic cell support structure described in the first aspect above, a plurality of support structures are respectively installed under the electrolytic cell to be supported, and then the plurality of support structures are sequentially connected in series by the connecting ribs 5 to form a whole. The device of the present application is applicable to the case where the bottom surface under the electrolytic cell is flat.

[0076] The present application provides an electrolytic cell support device, which connects a plurality of electrolytic cell support structures into a whole by using a pair of connecting ribs 5 respectively arranged on both sides of the electrolytic cell support structure, thereby improving the stability of the electrolytic cell support device.

[0077] As Figure 7 and Figure 8 shown, the present application provides an electrolytic cell support device, including a plurality of the electrolytic cell support structures provided above;

[0078] The plurality of electrolytic cell support structures are arranged along the axial direction of the electrolytic cell;

[0079] Adjacent two electrolytic cell support structures are connected by a pair of connecting members 6 respectively arranged on both sides of the electrolytic cell support structure.

[0080] When the electrolytic cell support device of the present application is in use, according to the electrolytic cell support structure described above, a plurality of support structures are respectively installed under the electrolytic cell to be supported, and then the adjacent two electrolytic cell support structures are connected pairwise by using the connecting members 6. In this way, the plurality of electrolytic cell support structures are connected. There can be a certain displacement between adjacent two electrolytic cell support structures. This method is applicable to the case where the bottom surface under the electrolytic cell is uneven.

[0081] The electrolytic cell support device of the present application connects adjacent two electrolytic cell support structures pairwise by the connecting members 6, and has the characteristics of adjustable and strong ground adaptability.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrolytic cell support structure, characterized in that: It comprises a pair of symmetrically arranged supporting legs (1), wherein a supporting plate (2) matching the curvature of the electrolytic cell is arranged on the top of the supporting legs (1); The pair of legs (1) are connected via at least one support rod (3), one end of the support rod (3) is rotatably connected to the side of one leg (1), and the other end is slidably connected to the other leg and can slide up and down along a slide groove (11) provided on the leg (1); The support rod (3) is connected to the opposite side surfaces between the pair of supporting legs (1) or the side surfaces on the same vertical plane; The pair of legs (1) are also connected via a horizontally arranged reinforcing connecting rod (4).

2. The electrolytic cell support structure according to claim 1, characterized in that: The pair of legs (1) are connected via two support rods (3); The two support rods (3) are arranged crosswise.

3. The electrolytic cell support structure according to claim 2, characterized in that: The two cross-arranged support rods (3) are connected at their cross positions via a support shaft (31).

4. The electrolytic cell support structure according to claim 1, characterized in that: The support plate (2) comprises a lower layer of a protective plate (21) and an upper layer of an insulating plate (22); The guard plate (21) is fixedly connected or rotatably connected to the supporting leg (1); The insulating plate (22) and the protective plate (21) are detachably connected.

5. The electrolytic cell support structure according to any one of claims 1 to 4, characterized in that: The bottom of the supporting leg (1) is also connected to the base (12).

6. An electrolytic cell support device, characterized in that: A plurality of electrolytic cell support structures according to any one of claims 1 to 5; A plurality of the electrolytic cell support structures are arranged along the axial direction of the electrolytic cell; The plurality of electrolytic cell support structures are fixedly connected by a pair of connecting ribs (5) respectively arranged on both sides of the electrolytic cell support structure; or, two adjacent electrolytic cell support structures are connected by a pair of connecting members (6) respectively arranged on both sides of the electrolytic cell support structure.

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