Electrolytic bath

Abstract

The utility model discloses an electrolytic bath, relates to the technical field of hydrogen energy manufacturing, and provides a technical scheme capable of solving the problems of electrolytic bath leakage or short circuit and the like caused by thermal expansion and / or internal small chamber pressure in the running process of the electrolytic bath. The electrolytic bath comprises a bath body and at least two supporting assemblies for supporting the bath body, and at least one supporting assembly is provided with a rolling friction assembly, so that the bath body can move in the axial extension direction of the bath body. In the running process of the electrolytic bath, when the electrolytic bath is subjected to thermal expansion and / or the pressure of an internal small chamber is too large, the at least one supporting assembly is provided with the rolling friction assembly, so that the bath body of the electrolytic bath can move in the axial extension direction of the bath body, and the internal stress of the electrolytic bath is released; therefore, the problems of arching deformation and even tension fracture of the electrolytic cell steel structure are avoided, and the leakage or short-circuit risk of the electrolytic cell is reduced.

Description

[0001] This application claims priority to Chinese Patent Application No. 202420393403.6, filed on February 29, 2024, entitled "An Electrolytic Cell Support Structure and an Electrolytic Cell", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model relates to the field of hydrogen energy manufacturing technology, and in particular to an electrolyzer. Background Technology

[0003] As market demand changes, electrolytic cells are becoming increasingly larger, with their length and weight also increasing. During normal operation, electrolytic cells are placed horizontally along the axis and installed using tension bolts. Existing technologies mainly focus on solving the problem of sagging in the middle of the electrolytic cell caused by this installation method.

[0004] However, the inventors of this utility model have discovered that, in addition to the sagging of the middle part of the electrolytic cell due to gravity, the electrolytic cell may also shift during operation due to thermal expansion and / or excessive internal chamber pressure. During the displacement of the electrolytic cell, the relevant components and the civil engineering foundation bear a large frictional force, making it impossible for the electrolytic cell to effectively alleviate its own thermal expansion and / or internal chamber pressure through displacement in a timely manner. This results in an increase in internal stress of the electrolytic cell, and the huge frictional force borne by the relevant components and the civil engineering foundation can also cause arching deformation or even cracking of the steel structure of the electrolytic cell. In severe cases, it can lead to leakage or short circuit. For this technical problem, the prior art has not disclosed or provided a relevant solution. Utility Model Content

[0005] The purpose of this invention is to provide an electrolytic cell to solve problems such as leakage or short circuit caused by thermal expansion and / or excessive internal chamber pressure during operation.

[0006] Based on this, the present invention provides an electrolytic cell, including a cell body and at least two support components supporting the cell body, wherein at least one of the support components has a rolling friction component, which enables the cell body to be displaced in the axial extension direction of the cell body.

[0007] When the above technical solution is adopted, during the operation of the electrolytic cell, the pressure and temperature of the small chamber inside the electrolytic cell gradually increase. When the electrolytic cell undergoes thermal expansion and / or the internal chamber pressure becomes too high, the electrolytic cell body can be displaced in the axial extension direction of the cell body due to the rolling friction component of at least one support component. The internal stress of the electrolytic cell is released, thereby avoiding the problem of arching deformation or even cracking of the steel structure of the electrolytic cell and reducing the risk of leakage or short circuit of the electrolytic cell.

[0008] In one possible implementation, the rolling friction assembly includes a grooved pad and at least one rolling element located within a groove in the grooved pad.

[0009] In one possible implementation, the groove width in the grooved pad is slightly larger than the diameter of the rolling element, and the groove depth is slightly smaller than the diameter of the rolling element. This ensures support stability while allowing rolling friction between the supported element and the rolling element, reducing friction caused by displacement. Preferably, the groove width in the grooved pad is 1-3 mm larger than the diameter of the rolling element, and the groove depth is 1-3 mm smaller than the diameter of the rolling element.

[0010] In one possible implementation, the at least two support components include a first support component and a second support component, and the two ends of the groove include a first end plate and a second end plate. The first support component and the second support component are respectively located below the first end plate and the second end plate, wherein at least one of the first support component and the second support component has the rolling friction component.

[0011] When the above technical solution is adopted, the first support component and the second support component support the tank from both ends. When either the first support component or the second support component has the rolling friction component, when the electrolytic cell undergoes thermal expansion and / or the internal chamber pressure is too high, the tank can be displaced in the axial extension direction of the tank towards the end of the electrolytic cell with the rolling friction component, thereby releasing the internal stress of the electrolytic cell.

[0012] It is understood that the first support component and the second support component may also have rolling friction components. In this case, when the electrolytic cell undergoes thermal expansion and / or the internal chamber pressure is too high, the cell body can be displaced in the axial extension direction of the cell body toward both ends of the electrolytic cell, thereby better releasing the internal stress of the electrolytic cell.

[0013] In one possible implementation, the bottom surfaces of the first end plate and the second end plate have flat portions, and the first support assembly and / or the second support assembly further includes a height adjusting member; wherein the rolling friction member contacts the flat portions of the first end plate and / or the second end plate, and the rolling friction member is located between the first end plate and / or the second end plate and the height adjusting member; or, the height adjusting member contacts the flat portions of the first end plate and / or the second end plate, and the height adjusting member is located between the first end plate and / or the second end plate and the rolling friction member.

[0014] With the above technical solution, the height of the corresponding support components can be adjusted by changing the number of height adjustment components to meet the requirements of the overall support structure. Preferably, the first support component and the second support component have the same height, thereby improving the stability of the electrolytic cell support. Furthermore, during the operation of the electrolytic cell, the pressure and temperature of the internal chambers gradually increase. When the electrolytic cell experiences thermal expansion and / or excessive internal chamber pressure, displacement will occur at the interface between the rolling friction component and its adjacent components, thereby releasing the internal stress of the electrolytic cell. The adjacent components of the rolling friction component can be the flat bottom surface of the first support component and / or the second support component, or they can be height adjustment components; this invention does not impose any special limitations on this.

[0015] In one possible implementation, the at least two support components further include a third support component located between the first and second support components, thereby supporting the electrolytic cell in the middle region and preventing sagging in the middle of the electrolytic cell. It is understood that when the electrolytic cell is too long, there may be multiple third support components, each supporting the cell at multiple locations in the middle region of the electrolytic cell to improve the stability of the support.

[0016] In one possible implementation, the third support component includes a height adjustment element for adjusting the support height of the third support component, enabling the third support component to support the middle region of the electrolytic cell.

[0017] Preferably, the height adjustment component includes a lifting assembly and / or at least one height adjustment pad. The lifting assembly facilitates more precise adjustment of the supported object's height from the ground. In one possible implementation, the lifting assembly includes a slider and a slider base plate that slide along an inclined plane. The slider can slide along the inclined plane of the slider base plate; that is, the position of the slider can be raised or lowered by sliding along the inclined plane, thereby adjusting the height of the supported object from the ground.

[0018] Furthermore, the height adjustment component includes a lifting assembly made of insulating material and / or at least one height adjustment pad, thereby preventing current from the electrolytic cell from being transmitted to the ground and affecting production safety.

[0019] In one possible implementation, the third support component further includes the rolling friction component, with the height adjustment member located between the tank and the rolling friction component, and / or the rolling friction component located between the tank and the height adjustment member. With this configuration, when the electrolytic cell experiences thermal expansion and / or excessive internal chamber pressure, the electrolytic cell will displace at the interface between the rolling friction component and its adjacent component, thereby releasing internal stress within the electrolytic cell. The adjacent component of the rolling friction component can be either the tank or the height adjustment member; this invention does not impose any specific limitation on this.

[0020] When the above technical solution is adopted, during the delivery and installation of the electrolytic cell, a space of appropriate size is selected, and the first and second support components are placed on a flat ground according to the calculated positions. The electrolytic cell body is then lifted so that the end pressure plates on both sides of the cell body fall onto the first and second support components respectively. After they are in place, the third support component is placed in the middle area of ​​the electrolytic cell. By adjusting the support height of the height adjustment component, the third support component is made to press against the bottom of the cell body, thereby providing support. Attached Figure Description

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 A schematic diagram of the structure of an electrolytic cell provided in an embodiment of this utility model;

[0023] Figure 2 A schematic diagram of the structure of a rolling friction assembly provided in an embodiment of this utility model;

[0024] Figure 3 A schematic diagram of the structure of a support component provided in an embodiment of this utility model;

[0025] Figure 4 A schematic diagram of the displacement of an electrolytic cell provided for an embodiment of this utility model;

[0026] Figure 5 A schematic diagram of the structure of an electrolytic cell provided in another embodiment of this utility model;

[0027] Figure 6 A schematic diagram of a support component provided in another embodiment of this utility model;

[0028] Figure 7 This is a schematic diagram of the structure of a lifting assembly provided in another embodiment of the present invention; Detailed Implementation

[0029] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] Reference Figure 1-3 This utility model discloses an electrolytic cell, including a cell body 1, a first support component 10 and a second support component 20. The first support component 10 and the second support component 20 support the cell body 1 from both sides of the electrolytic cell, wherein the second support component 20 has a rolling friction component.

[0035] Figure 2The diagram illustrates the structure of the rolling friction assembly, which includes a grooved pad 202 and at least one rolling element 201. The at least one rolling element 201 is located within a groove 203 of the grooved pad 202. The width of the groove 203 in the grooved pad 202 is slightly larger than the diameter of the rolling element 201, and the depth of the groove 203 in the grooved pad 202 is slightly smaller than the diameter of the rolling element 201. In this embodiment, the width of the groove 203 in the grooved pad 202 is preferably 1-3 mm larger than the diameter of the rolling element 201, and the depth of the groove 203 in the grooved pad 202 is preferably 1-3 mm smaller than the diameter of the rolling element 201. This ensures support stability while allowing rolling friction between the supported element and the rolling element, reducing friction caused by displacement.

[0036] In this embodiment, the rolling element 201 is a round steel bar. It is understood that in other embodiments, balls, rollers, etc., can also be used as rolling elements. This invention does not limit the specific type and structure of the rolling element. Furthermore, the groove can penetrate the grooved pad in the thickness direction, or it can be a blind-hole groove formed on the grooved pad. From the perspective of convenient processing and saving raw materials, in this embodiment, it is preferable that the groove 203 penetrates the grooved pad 202 in the thickness direction. The number of rolling elements and the number of grooves in the grooved pad can be determined specifically according to the width of the corresponding support component and actual needs. This invention does not impose specific limitations on this.

[0037] Specifically, the two ends of the groove 1 include a first end plate 2 and a second end plate 3. The first support component 10 and the second support component 20 are respectively located below the first end plate 2 and the second end plate 3. The bottom surfaces of the first end plate 2 and the second end plate 3 have flat parts.

[0038] like Figure 3 As shown, the first support component 10 includes a plurality of height adjustment pads 101 and 1011. The height adjustment pads 1011 are made of an insulating material, which can be plastic, rubber, or ceramic, as long as it prevents the current in the electrolytic cell from being transmitted to the ground. The other height adjustment pads 101 can be made of the same material as the height adjustment pads 1011, or they can be made of other materials, such as metal. This embodiment of the invention does not impose specific limitations on this. Furthermore, the thickness of the plurality of height adjustment pads 101 and 1011 can be the same or different. From the perspective of reducing manufacturing costs and facilitating height adjustment, the plurality of height adjustment pads 101 and 1011 preferably have the same thickness.

[0039] In this embodiment, the height adjustment pad 1011 made of insulating material is located at the top of the other height adjustment pads 101. It can be understood that the height adjustment pad 1011 can also be located between the other height adjustment pads 101 or placed at the bottom in contact with the ground.

[0040] The second support component 20 includes the rolling friction component and a plurality of height adjustment pads 204 and 2041. Height adjustment pad 2041 is made of insulating material. The other height adjustment pads 204 can be made of the same material as height adjustment pad 2041, or they can be made of other materials. The material selection, thickness, and stacking order of the plurality of height adjustment pads 204 and 2041 can be referenced to the arrangement of the plurality of height adjustment pads 101 and 1011, and will not be repeated here. The number of the aforementioned height adjustment pads 101, 1011, 204, and 2041 can be specifically set according to actual conditions. In this embodiment of the present invention, the first support component 10 and the second support component 20 have the same height, which can be achieved by adjusting the number of the height adjustment pads 101, 1011, 204, and 2041.

[0041] In an embodiment of this utility model, the rolling friction assembly contacts the flat portion of the second end pressure plate 3, and the rolling friction assembly is located between the second end pressure plate 3 and the plurality of height adjustment pads 204, 2041. Alternatively, the plurality of height adjustment pads 204, 2041 can be arranged to contact the flat portion of the second end pressure plate 3, and the plurality of height adjustment pads 204, 2041 can be located between the second end pressure plate 3 and the rolling friction assembly.

[0042] When the above technical solution is adopted, such as Figure 4 As shown, during the operation of the electrolytic cell, the pressure and temperature of the internal chambers gradually increase. When the electrolytic cell undergoes thermal expansion and / or the internal chamber pressure becomes too high, the second support component 20 has a rolling friction component, allowing the cell body 1 to move in the axial extension direction of the cell body 1. This releases the internal stress of the electrolytic cell, thereby preventing the steel structure of the electrolytic cell from arching or even cracking, and reducing the risk of leakage or short circuit in the electrolytic cell.

[0043] It is understood that in other embodiments, the first support component 10 may also have the rolling friction component, while the second support component 20 may only have a height adjustment pad; or, the first support component 10 and the second support component 20 may both have the rolling friction component, both of which can realize the displacement of the electrolytic cell 1 in the axial extension direction of the cell 1, thereby releasing the internal stress of the electrolytic cell.

[0044] In another embodiment of this utility model, when the length of the electrolytic cell is too long, such as Figure 5 As shown, the electrolytic cell may further include a third support component 30, which is located between the first support component 10 and the second support component 20, thereby supporting the cell body 1 in the middle region of the electrolytic cell and preventing the middle part of the electrolytic cell from sagging. It is understood that there may be multiple third support components, each supporting the cell body at multiple locations in the middle region of the electrolytic cell to improve the stability of the support.

[0045] like Figure 6 As shown, the arrangement of the first support component 10 and the second support component 20 in this embodiment is the same as in the aforementioned embodiments, and will not be repeated here. The third support component 30 includes a tank support member 301 and a height adjustment member arranged from top to bottom. The height adjustment member is used to adjust the height of the tank support member 301 from the ground. Further, the height adjustment member includes a lifting component 302 and a height adjustment pad 305. In some other embodiments, the height adjustment member may optionally have a lifting component and / or at least one height adjustment pad. In addition, in some other embodiments, the third support component may only support the middle area of ​​the electrolytic cell through the height adjustment member, without having to separately provide the tank support member.

[0046] Figure 7 The specific structure of the lifting assembly 302 in this embodiment is shown, including a slider 3021, a slider base plate 3022, a drive rod 3023, and a bracket 3024. The slider base plate 3022 is fixed to the bracket 3024. One end of the drive rod 3023 is rotatably fixed to the bracket 3024, and the other end is threadedly connected to the slider 3021. The slider 3021 and the slider base plate 3022 are connected by a sloped sliding engagement. When the drive rod 3023 is rotated, the slider 3021 can slide along the slope of the slider base plate 3022. That is, the position of the slider 3021 can be raised or lowered by sliding along the slope, thereby adjusting the height of the supported object. In some other embodiments, a cylinder, hydraulic cylinder, linear motor, etc., can also be used to drive the slider 3021.

[0047] It is understood that although the height adjustment pads 101, 1011, 204, and 2041 are used as height adjustment components in the first support assembly 10 and the second support assembly 20 in this embodiment, in other embodiments, the lifting assembly 302 or a combination thereof with the height adjustment pads 101, 1011, 204, and 2041 may also be used as height adjustment components in the first support assembly 10 and the second support assembly 20. Furthermore, the lifting assembly may be made of the same material as the height adjustment pads or of different materials; this invention does not impose any particular limitation on this.

[0048] In addition, a rolling friction assembly, namely a rolling element 303 and a grooved pad 304, is provided between the lifting assembly 302 and the height adjustment pad 305.

[0049] This invention does not specifically limit the stacking order of the groove support, rolling friction assembly, and height adjustment component in the above embodiments. The height adjustment component can be located between the groove support and the rolling friction assembly, or the rolling friction assembly can be located between the groove support and the height adjustment component. It is understood that in some other embodiments, when the third support assembly does not have a groove support, the height adjustment component is located between the groove and the rolling friction assembly, and / or the rolling friction assembly is located between the groove and the height adjustment component.

[0050] In this embodiment, when the electrolytic cell is delivered and installed, a space of suitable size is selected, and the first support assembly 10 and the second support assembly 20 are placed on a flat ground according to the calculated positions. The cell body 1 of the electrolytic cell is lifted, so that the first end pressure plate 2 and the second end pressure plate 3 on both sides of the cell body 1 fall on the first support assembly 10 and the second support assembly 20 respectively. After they are in place, the third support assembly 30 is placed in the middle area of ​​the electrolytic cell. The drive rod 3023 in the lifting assembly 302 is rotated to drive the slider 3021 to slide along the slider base plate 3022, thereby adjusting the support height of the slider 3021 and causing the third support assembly 30 to press against the bottom of the cell body 1 to provide support.

[0051] During operation, the pressure and temperature of the internal chambers of the electrolytic cell in this embodiment gradually increase. When thermal expansion and / or excessive internal chamber pressure occur, the cell body 1 can be displaced in the axial extension direction of the cell body 1 due to the rolling friction components of both the second support component 20 and the third support component 30. This releases the internal stress of the electrolytic cell, thereby preventing the steel structure of the electrolytic cell from arching or even cracking, and reducing the risk of leakage or short circuit in the electrolytic cell.

[0052] In addition, in other embodiments of this utility model, the third support component 30 may not include the rolling friction component, while the first support component 10 and the second support component 20 both have rolling friction components. In this case, when the electrolytic cell undergoes thermal expansion and / or the internal chamber pressure is too high, the cell body 1 of the electrolytic cell can also be displaced towards both ends of the electrolytic cell in the axial extension direction of the cell body 1, thereby releasing the internal stress of the electrolytic cell.

[0053] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0054] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An electrolytic cell, characterized in that, The device includes a groove and at least two support components supporting the groove, wherein at least one of the support components has a rolling friction component, the rolling friction component including a grooved pad and at least one rolling element, the at least one rolling element being located in the groove of the grooved pad, and rolling friction occurring between the supported component and the at least one rolling element, thereby enabling the groove to be displaced in the axial extension direction of the groove. The at least two support components include a first support component and a second support component. The two ends of the groove include a first end plate and a second end plate. The first support component and the second support component are respectively located below the first end plate and the second end plate. At least one of the first support component and the second support component has the rolling friction component. The bottom surfaces of the first end plate and the second end plate have flat portions, and the first support assembly and / or the second support assembly further include height adjustment components; The rolling friction assembly contacts the flat portion of the first end pressure plate and / or the flat portion of the second end pressure plate, and the rolling friction assembly is located between the first end pressure plate and / or the second end pressure plate and the height adjustment member; Alternatively, the height adjustment member contacts the flat portion of the first end plate and / or the flat portion of the second end plate, and the height adjustment member is located between the first end plate and / or the second end plate and the rolling friction assembly.

2. The electrolytic cell according to claim 1, characterized in that, The groove width in the grooved pad is 1-3 mm larger than the diameter of the rolling element, and the groove depth in the grooved pad is 1-3 mm smaller than the diameter of the rolling element.

3. The electrolytic cell according to claim 1, characterized in that, The at least two support components also include a third support component, which is located between the first support component and the second support component.

4. The electrolytic cell according to claim 3, characterized in that, The third support component includes a height adjustment element, which is used to adjust the support height of the third support component.

5. The electrolytic cell according to claim 1 or 4, characterized in that, The height adjustment component includes a lifting assembly and / or at least one height adjustment pad.

6. The electrolytic cell according to claim 1 or 4, characterized in that, The height adjustment component includes a lifting assembly made of insulating material and / or at least one height adjustment pad.

7. The electrolytic cell according to claim 4, characterized in that, The third support component further includes the rolling friction component, the height adjustment member is located between the groove and the rolling friction component, and / or the rolling friction component is located between the groove and the height adjustment member.

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