Heat preservation device and electrolytic bath

Abstract

The utility model discloses a heat preservation device and an electrolytic bath, and relates to the technical field of electrolytic baths, the heat preservation device is applied to the electrolytic bath, the heat preservation device comprises a heat preservation protection assembly and a plurality of heating assemblies, the heat preservation protection assembly is provided with a heating layer, and the heat preservation protection assembly is provided with a first end and a second end which are opposite in the length direction of the heat preservation protection assembly; the multiple heating assemblies are arranged on the heating layer and arranged in the circumferential direction of the heat preservation protection assembly, and each heating assembly extends to the second end of the heat preservation protection assembly from the first end of the heat preservation protection assembly. The problem that the protection and heat preservation effects are not ideal is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic cells, in particular to a heat preservation device and an electrolytic cell. Background Art

[0002] Since hydrogen production from water electrolysis is highly dependent on electricity and consumes a lot of electricity, the use of green and clean photovoltaic and wind power can effectively reduce project costs. At present, large-scale green electricity hydrogen production is mainly concentrated in the northern region, and the single electrolyzer used for green electricity hydrogen production is basically an alkaline electrolyzer (ALK). The ALK electrolyzer is mainly assembled from key materials such as plates, electrodes, and diaphragm cloth. The manufacturing process of the electrolyzer involves processes such as cooking or power-on testing. Due to the airtightness of the electrolyzer itself, the water brought into the electrolyzer during the manufacturing and testing process cannot be discharged, and there is inevitably water inside the electrolyzer. The design and use temperature requirements of large-scale ALK electrolyzers in the industry are all above 0°C, but because the existing large-scale water electrolysis hydrogen production projects are concentrated in the three northern regions, and the temperature in the northern region is low in winter, when the water electrolysis project is constructed in the northern winter, it is very easy to cause ice inside the electrolyzer. The ice in the electrolyzer is easy to freeze the internal diaphragm, plates and other structures, causing damage to the electrolyzer, resulting in the electrolyzer being unable to be transported and stored on site in the three northern regions in winter. Although tarpaulins are currently used to cover the outside of the electrolytic cells, the antifreeze and heat preservation effects of the tarpaulins are not ideal.

[0003] The existing technology urgently needs to carry out insulation treatment on the electrolytic cell to prevent the moisture inside the electrolytic cell from freezing or even damaging the electrolytic cell due to the low ambient temperature after transportation to the site, hoisting in place and before installation and commissioning. Utility Model Content

[0004] The main purpose of the utility model is to provide a heat preservation device and an electrolytic cell, which are used to solve the problem of unsatisfactory protective heat preservation effect.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a heat preservation device, which is applied to an electrolytic cell, and the heat preservation device comprises:

[0006] A heat preservation and protection component, wherein the heat preservation and protection component has a heating layer and has a first end and a second end opposite to each other along its length direction;

[0007] Multiple heating components are arranged in the heating layer, and multiple heating components are arranged along the circumference of the thermal insulation and protection component. Each heating component extends from the first end of the thermal insulation and protection component to the second end of the thermal insulation and protection component.

[0008] In one embodiment, the thermal insulation and protection assembly is further provided with:

[0009] A fixing part, at least two of which are arranged at intervals along the length direction of the thermal insulation and protection component;

[0010] A supporting portion is disposed between at least two of the fixing portions and is used to fix the plurality of heating components.

[0011] In one embodiment, the support portion includes a plurality of position limiting ropes that are sequentially spaced apart, and the heating component is disposed between at least two adjacent position limiting ropes.

[0012] In one embodiment, the heating assembly includes a heat-generating belt, two adjacent heat-generating belts are arranged at intervals, and each of the heat-generating belts is arranged in a curved shape between two adjacent limiting ropes.

[0013] In one embodiment, each of the limit ropes has a plurality of limit points arranged at intervals, and the limit points are used to fix the heating component.

[0014] In one embodiment, the thermal insulation and protection component can be moved open or closed, and the thermal insulation and protection component is provided with a telescopic rod, and the telescopic rod is movably switched between an extended position and a retracted position and is arranged between at least two fixed parts, and the telescopic rod drives the thermal insulation and protection component to be opened when it moves to the extended position, and drives the thermal insulation and protection component to be closed when it moves to the retracted position.

[0015] In one embodiment, the fixing portion is provided with a locking member, and the locking member is movably switched between a locked state and an unlocked state. In the locked state, the locking member locks the telescopic rod; in the unlocked state, the locking member releases the telescopic rod.

[0016] In one embodiment, the thermal insulation and protection assembly further includes an intermediate thermal insulation layer and a protection layer sequentially stacked outside the heating layer from the inside to the outside, and the support portion is disposed on the heating layer.

[0017] In one embodiment, the fixing portion includes a first fixing ring and a second fixing ring, the first fixing ring is arranged on the heating layer, and the second fixing ring is arranged on the protective layer.

[0018] In one embodiment, the heat preservation device further comprises a plurality of shrinkage ropes, and the plurality of shrinkage ropes are at least arranged at the first end and the second end of the heat preservation and protection component for tightening the heat preservation and protection component.

[0019] In one embodiment, the heat preservation device further includes a temperature control component, the heating component includes a heat-generating belt, and the temperature control component is electrically connected to the plurality of heat-generating belts for controlling the operation of the plurality of heat-generating belts according to a received temperature control signal.

[0020] The utility model also provides an electrolytic cell, comprising an electrolytic cell body and the above-mentioned heat preservation device, wherein the heat preservation device is covered outside the electrolytic cell body.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] A thermal insulation protection component is provided with a heating layer, and a plurality of heating components are provided on the heating layer along the circumference of the thermal insulation protection component, each heating component extends from the first end to the second end of the thermal insulation protection component, and heat is provided to the electrolytic cell through the plurality of heating components to achieve uniform heating and heat preservation, thereby ensuring that the internal temperature of the electrolytic cell is not affected by the external environment and playing a protective role at the same time, thereby preventing the electrolytic cell from being damaged by the external environment during transportation and use, effectively ensuring the use performance of the electrolytic cell and extending the service life of the electrolytic cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the heat preservation device of the utility model;

[0025] Figure 2 It is a structural schematic diagram of another embodiment of the heat preservation device of the utility model;

[0026] Figure 3 It is a side view of an embodiment of the heat preservation device of the utility model;

[0027] Figure 4 It is a structural schematic diagram of an embodiment of the heating layer of the utility model.

[0028] Description of Figure Numbers:

[0029] 100, thermal insulation and protection component; 111, heating layer; 112, intermediate thermal insulation layer; 113, protection layer; 121, first fixing ring; 122, second fixing ring; 131, limiting rope; 1311, limiting point; 140, shrinkage rope; 150, temperature control component;

[0030] 200, heat wave;

[0031] 300. Telescopic rod.

[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that if all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture, if the specific posture changes, the directional indication will also change accordingly.

[0035] If the description of "first", "second", etc. in the present utility model is only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance, or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. If the description of "A and / or B" is involved in the present utility model, it means that it includes solution A or solution B, or includes solution A and solution B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] At present, large-scale green electricity hydrogen production is mainly concentrated in the northern region. The single electrolyzer used in green electricity hydrogen production is basically an alkaline electrolyzer (ALK). The ALK electrolyzer is mainly assembled from key materials such as plates, electrodes, and diaphragm cloth. The manufacturing process of the electrolyzer involves processes such as steaming or power-on testing. Due to the airtightness of the electrolyzer itself, the water brought into the electrolyzer during the manufacturing and testing process cannot be discharged, and there is inevitably water inside the electrolyzer. The design and use temperature requirements of large-scale ALK electrolyzers in the industry are all above 0°C, but because the existing large-scale water electrolysis hydrogen production projects are concentrated in the three northern regions, and the winter temperature in the northern region is low, when the water electrolysis project is constructed in the northern winter, it is very easy to cause ice inside the electrolyzer. The ice in the electrolyzer is easy to freeze the internal diaphragm, plate and other structures, causing damage to the electrolyzer, resulting in the electrolyzer being unable to be transported and stored on site in the three northern regions in winter. Although tarpaulins are currently covered on the outside of the electrolyzer, the antifreeze and heat preservation effect of the tarpaulin is not ideal.

[0037] In order to solve the problem of unsatisfactory protective insulation effect, realize the insulation of the electrolytic cell, and avoid the freezing of moisture inside the electrolytic cell due to too low ambient temperature or even damage to the electrolytic cell due to freezing after the electrolytic cell is transported to the site, hoisted in place and before installation and commissioning, the utility model proposes a thermal insulation device and an electrolytic cell.

[0038] Insulation device is used in electrolytic cell, refer to Figures 1 to 4 The heat preservation device includes a heat preservation protection component 100 and a plurality of heating components.

[0039] The heat preservation and protection component 100 has a heating layer 111, and the heat preservation and protection component 100 has a first end and a second end opposite to each other along its length direction. A plurality of heating components are arranged on the heating layer 111, and the plurality of heating components are arranged along the circumference of the heat preservation and protection component 100, and each heating component extends from the first end of the heat preservation and protection component 100 to the second end of the heat preservation and protection component 100.

[0040] The insulation device is used to cover the electrolytic cell and other equipment that needs insulation protection, so as to heat, insulate and protect the equipment, ensure the transportation and storage of electrolytic cells and other equipment in extremely cold areas, avoid the external low temperature environment from damaging the electrolytic cell structure or other equipment inside, and ensure that the electrolytic cell and other equipment can still be transported and constructed normally in the low temperature environment.

[0041] Taking the application of the heat preservation device shown in the utility model to the electrolytic cell as an example, in order to ensure that the electrolyte flows fully during the electrolysis process, the electrolytic cell such as the ALK electrolytic cell generally sets the outer shape into a cylindrical shape, so as to optimize the electrolysis efficiency while facilitating the arrangement and installation in different environments, and reducing the requirements for the use environment. The heat preservation and protection component 100 shown in the utility model can be specifically set as a cylindrical structure with a certain strength, which is used to be set from the first end of the columnar electrolytic cell to the other end of the electrolytic cell, and the electrolytic cell body is set in the heat preservation and protection component 100, and the heating layer 111 of the heat preservation and protection component 100 is used to heat the electrolytic cell, so that the electrolytic cell is heated evenly. While ensuring that the internal temperature of the electrolytic cell is not affected by the external environment, the electrolytic cell body can also be protected by the heat preservation and protection component 100 that is set outside the electrolytic cell body. The heat preservation device plays a role of shock absorption and buffering protection, preventing the electrolytic cell from being damaged by external vibration during transportation and use, effectively ensuring the performance of the electrolytic cell, and extending the service life of the electrolytic cell.

[0042] Optionally, in the present invention, the heating component may include, but is not limited to, any heating component or device with heating function suitable for actual use, such as a heating belt 200 such as a heating belt, a heating pipe, a heating net, etc. The heating component may be set as a rigid structure corresponding to the shape of an electrolytic cell or other equipment, or a flexible structure that can be deformed and adjusted; the specific setting may be based on actual conditions and is not limited here.

[0043] Taking the heating component including the heat-generating belt 200 as an example, the heat-insulating protection component 100 is provided with a heating layer 111, and a plurality of heat-generating belts 200 are provided on the heating layer 111 along the circumference of the heat-insulating protection component 100, each heat-generating belt 200 extends from the first end to the second end of the heat-insulating protection component 100, and heat is provided to the electrolytic cell through the plurality of heat-generating belts 200. The plurality of heat-generating belts 200 are used to achieve uniform heating and heat preservation, and can also provide protective support for equipment such as the electrolytic cell, so as to prevent the electrolytic cell and other equipment from being damaged by the external environment during transportation and use.

[0044] It should be noted that the thermal insulation and protection component 100 shown in the present invention has a heating layer 111. Specifically, the thermal insulation and protection component 100 shown can be set as a multi-layer structure, and the heating layer 111 shown can be set as an inner layer, middle layer or outer layer on the thermal insulation and protection layer 113; or, the thermal insulation and protection component 100 shown can be set as a single-layer structure, and the heating component can be set on the surface of the thermal insulation and protection component 100 or embedded in the thermal insulation and protection component 100, and the position where the heating component is located can be used as the heating layer 111 of the thermal insulation and protection component 100. The structure of the thermal insulation and protection component 100 shown in the present invention can be set according to actual conditions, and is not limited here.

[0045] Reference Figures 1 to 4 In one embodiment, the thermal insulation and protection assembly 100 is further provided with a fixing portion and a supporting portion.

[0046] There are at least two fixing parts, and the at least two fixing parts are arranged at intervals along the length direction of the heat preservation and protection component 100. The supporting part is arranged between the at least two fixing parts and is used to fix the multiple heating components.

[0047] It is understandable that, in order to optimize the fixing effect, each fixing part can be specifically set to be annular or other structures with circumferential positioning and fixing functions, so that the fixing part is set around at least part of the thermal insulation and protection component 100. The fixing part can be, but is not limited to, a fixing ring, a plurality of fixing rings combined with each other, or a plurality of fixing structures connected and combined into an annular shape. At least two fixing parts of the utility model can be set at any position of the thermal insulation and protection component 100, specifically at any position such as the two ends of the thermal insulation and protection component 100, the middle of the thermal insulation and protection component 100, etc.

[0048] In some optional embodiments of the present invention, the shown thermal insulation and protection component 100 is provided with two or other multiple fixing parts, and the multiple fixing parts are arranged at intervals along the length direction of the thermal insulation and protection component 100, one of the multiple fixing parts is arranged at the first end of the thermal insulation and protection component 100, and another of the multiple fixing parts is arranged at the second end of the thermal insulation and protection component 100; when the thermal insulation and protection component 100 is provided with more than two other multiple fixing parts, at least one other fixing part is arranged in the middle of the thermal insulation and protection component 100.

[0049] Optionally, the support portion of the present invention includes a plurality of limiting ropes 131 , and the plurality of limiting ropes 131 may be staggered or spaced.

[0050] In one embodiment, the support portion includes a plurality of position limiting ropes 131 arranged in sequence and at intervals. Each position limiting rope 131 extends from a first end of the heat preservation and protection component 100 to a second end of the heat preservation and protection component 100.

[0051] Specifically, in the present invention, the circumferential direction of the thermal insulation and protection component 100 is used as the arrangement direction of the multiple limiting ropes 131, and the multiple limiting ropes 131 are arranged in parallel and at intervals, and the distance between any two adjacent limiting ropes 131 can be the same or different.

[0052] Optionally, the heating assembly is disposed between at least two adjacent limiting ropes 131 .

[0053] It can be understood that the heating assembly shown can be specifically arranged between two or more adjacent limiting ropes 131. Two adjacent heating assemblies can be alternately arranged on the same limiting rope 131 or different limiting ropes 131, and multiple heating assemblies can be partially in contact with each other or not in contact with each other. The support portion has relative inner and outer sides, and the multiple heating assemblies can be, but are not limited to, arranged on the inner side of the support portion, arranged on the outer side of the support portion, and inserted between the inner and outer sides of the support portion and coplanar with the support portion. Specifically, a limiting point 1311 such as a clasp, a connecting ring, or a connecting node can be arranged on the limiting rope 131 to fix the heating assembly; or the heating assembly can be arranged to be fixed directly on the limiting rope 131 by bonding, clamping, screwing, etc. While achieving uniform heat dissipation and heat preservation, the limiting rope 131 of the support portion and multiple heating assemblies provide support and protection for equipment such as electrolytic cells.

[0054] It should be noted that, in the present invention, the support portion includes a plurality of limiting ropes 131 which are sequentially arranged at intervals. Optionally, each limiting rope 131 extends from the first end of the thermal insulation and protection component 100 to the second end of the thermal insulation and protection component 100 along the length direction of the thermal insulation and protection component 100; or, the limiting rope 131 extends from the first end of the thermal insulation and protection component 100 to the second end of the thermal insulation and protection component 100, and the extension direction of the limiting rope 131 is not the same as the length direction of the thermal insulation and protection component 100, that is, the limiting rope 131 can be arranged circumferentially around the thermal insulation and protection component 100; it is also possible that each limiting rope 131 includes multiple limiting rope segments, and the multiple limiting rope segments of the same limiting rope 131 can be connected to each other or not contact each other. When the multiple limiting rope segments of the same limiting rope 131 are arranged at intervals along the length direction or circumference of the thermal insulation and protection component 100, the limiting rope segments of adjacent limiting ropes 131 can be optionally arranged alternately to construct multiple limiting points 1311 through the multiple limiting rope segments.

[0055] The thermal insulation protection component 100 of the present invention is provided with at least two fixing parts. When multiple fixing parts are provided, one of the multiple fixing parts is provided at the first end of the thermal insulation protection component 100, and another of the multiple fixing parts is provided at the second end of the thermal insulation protection component 100; when the thermal insulation protection component 100 is provided with more than two other multiple fixing parts, at least one other fixing part is provided at the middle of the thermal insulation protection component 100. The multiple limiting ropes 131 of the support part are optionally provided between at least two adjacent fixing parts, and are connected and fixed to the thermal insulation protection component through the fixing parts.

[0056] Optionally, the heating assembly includes a heat-generating belt 200 as an example for explanation, and the plurality of heat-generating belts 200 are not in contact with each other, and each heat-generating belt 200 is disposed between at least two adjacent limiting ropes 131. Figure 4 In one embodiment, two adjacent heat-generating belts 200 are arranged at intervals, and each heat-generating belt 200 is arranged between two adjacent limiting ropes 131 in a curved shape.

[0057] Each heat-generating belt 200 is connected and fixed between the corresponding two limit ropes 131 in an S-shape, a reciprocating serpentine shape or other curved shapes. Specifically, each heat-generating belt 200 can be provided with a plurality of protrusions and a plurality of recesses arranged alternately in sequence along its length, and the extension directions of the protrusions and recesses of each heat-generating belt 200 are opposite. The width of the protrusion and the width of the recess are defined by the length of the heat-generating belt 200, and the depth of the protrusion and the depth of the recess are determined by the distance between at least two limit ropes connecting the same heat-generating belt 200. The widths and depths of the plurality of protrusions of the heat-generating belt 200 can be the same or different, and the widths and depths of the plurality of recesses can be the same or different.

[0058] In the present invention, each heat-generating belt 200 is disposed between two adjacent limiting ropes 131 in a curved shape. Optionally, two adjacent heat-generating belts 200 are alternately connected to the same limiting rope 131; or, two adjacent heat-generating belts 200 are alternately connected to two limiting ropes 131 disposed at intervals. Specifically, the depth of the protruding portion and the recessed portion of the heat-generating belt 200 can be further adjusted by adjusting the distance between the two adjacent limiting ropes 131, and the degree of curvature of the heat-generating belt 200 can be adjusted.

[0059] The bending directions of the multiple heat-generating belts 200 shown may be the same or different, that is, the multiple heat-generating belts 200 may be arranged in parallel along the circumference of the thermal insulation and protection component 100, or the multiple heat-generating belts 200 may be arranged in an alternating manner along the circumference of the thermal insulation and protection component 100, and two adjacent heat-generating belts 200 may be arranged in a mirror image or in any other form suitable for actual use, which is not limited here.

[0060] Reference Figure 4 In one embodiment, each limiting rope 131 has a plurality of limiting points 1311 arranged at intervals, and the limiting points 1311 are used to fix the heating component. The heating component is not completely connected and fixed to the limiting rope 131. By setting the limiting points 1311, the heating component and the limiting rope 131 are intermittently connected. In this way, the heating component and the limiting rope 131 can be easily disassembled, used and maintained repeatedly, and the problem of inconvenience in disassembly and storage caused by completely fixing the heating component to the limiting rope 131 can be avoided.

[0061] The limiting rope 131 is connected and fixed to the fixing part, and the limiting point 1311 can be, but is not limited to, a connection structure such as a clamp, a connecting ring, a connecting node, etc. pre-set on the limiting rope 131. After the fixing of the limiting rope 131 is completed, the heating component is connected and fixed to the corresponding limiting point 1311 to complete the connection and fixing of the heating component; or, after the fixing of the limiting rope 131 is completed, multiple positions connected to the limiting rope 131 are found in the heating component according to actual needs, so that the heating component is connected and fixed to the corresponding position of the limiting rope 131 by bonding, clamping, screwing, etc., and the position where the limiting rope 131 is connected and fixed to the heating component is used as the limiting point 1311. Taking the heating component including the heat-generating belt 200 as an example, the width of the protruding part and the recessed part of the heat-generating belt 200 can be adjusted by adjusting the number of limiting points 1311 and the position of the limiting points 1311 on the limiting rope 131, and the bending degree of the heat-generating belt 200 can be further adjusted.

[0062] Taking the heating assembly including the heat-generating belt 200 as an example, in some embodiments of the present invention, the heating layer 111 can be implemented in the following manner or in other various manners:

[0063] The two fixing parts are connected and fixed at the two ends of the support part, and the limiting points 1311 are determined on the multiple limiting ropes 131 of the support part, so that each heat-generating belt 200 is connected and fixed between the corresponding two limiting ropes 131 in an S-shape, a reciprocating serpentine shape or other curved shapes through the limiting points 1311 until all the heat-generating belts 200 are connected. An inner insulation layer is covered on one side of the support part to construct the heating layer 111 of the present utility model.

[0064] Reference Figure 2 In one embodiment, the thermal insulation and protection component 100 can be moved to open or close. The thermal insulation and protection component 100 is provided with a telescopic rod 300. The telescopic rod 300 is movably switched between an extended position and a retracted position and is arranged between at least two fixed parts. When the telescopic rod 300 moves to the extended position, it drives the thermal insulation and protection component 100 to open. When the telescopic rod 300 moves to the retracted position, it drives the thermal insulation and protection component 100 to close.

[0065] The telescopic rod 300 is provided to open or close the heat preservation protection assembly 100, which can facilitate the storage, packaging, transportation and use of the heat preservation device, so that the heat preservation device has flexibility in use and storage. When not in use, the heat preservation protection assembly 100 can be closed to store the heat preservation device to avoid occupying space, which can also facilitate market promotion and sales and reduce inventory and transportation costs.

[0066] It can be understood that in the present invention, the position of the telescopic rod 300 when it is extended to the longest position is determined as the extended position of the telescopic rod 300, and the position of the telescopic rod 300 when it is contracted to the shortest position is determined as the contracted position of the telescopic rod 300. The telescopic rod 300 can be switched between the extended position and the contracted position. When the telescopic rod 300 moves to the extended position, it drives the thermal insulation and protection component 100 to open, so that the thermal insulation and protection component 100 is fully extended to the open position; when the telescopic rod 300 moves to the contracted position, it drives the thermal insulation and protection component 100 to close, so that the thermal insulation and protection component 100 is fully closed to the closed position. Specifically, the thermal insulation device can be designed according to the different needs of actual use, the size and model of the electrolytic cell and other equipment used, and the telescopic size range of the telescopic rod 300 can be set according to the size and model of the thermal insulation device. In addition, at least one node may be provided between the extended position and the retracted position of the telescopic rod 300 to lock the telescopic rod 300 when the telescopic rod 300 is moved to the corresponding node, so that the telescopic rod 300 is maintained at a corresponding length, so as to be suitable for constructing heat preservation devices of different sizes and models, and suitable for electrolytic cells of different sizes, thereby improving the flexibility of the heat preservation device, expanding the scope of use, and reducing costs.

[0067] In the present invention, the telescopic rod 300 is extended from the first end of the thermal insulation and protection component 100 to the second end of the thermal insulation and protection component 100 along the length direction of the thermal insulation and protection component 100. The contraction direction of the telescopic rod 300 is parallel to the length direction of the thermal insulation and protection component 100. In addition to driving the thermal insulation and protection component 100 to open and close, and facilitating the storage and use of the thermal insulation device, the telescopic rod 300 also plays a supporting role to prevent the thermal insulation device from being too soft and affecting its use. In other embodiments of the present invention, the telescopic rod 300 can be optionally replaced with other folding parts with folding functions or other connecting parts with flexible deformation functions, which can be specifically set according to actual conditions and are not limited here.

[0068] Furthermore, there is one or more telescopic rods 300 . When multiple telescopic rods 300 are provided, the multiple telescopic rods 300 are spaced apart along the circumference of the thermal insulation protection assembly 100 .

[0069] In one embodiment, the fixing portion is provided with a locking member, which is movably switched between a locked state and an unlocked state. In the locked state, the locking member locks the telescopic rod 300 ; in the unlocked state, the locking member releases the telescopic rod 300 .

[0070] Optionally, in the present invention, the locking member can be a buckle, a lock, a clasp or other locking structures. When it is necessary to open or close the heat preservation protection assembly 100, that is, when it is necessary to change the state of the heat preservation device, the locking member is opened to switch the locking member from the locked state to the unlocked state, so as to release the restriction of the locking member on the telescopic rod 300, release the telescopic rod 300, and enable the telescopic rod 300 to switch between the extended position and the retracted position; when it is necessary to maintain the heat preservation protection assembly 100 in the open state or the closed state, the locking member is locked to switch the locking member from the unlocked state to the locked state, and the locking member locks the telescopic rod 300 to prevent the telescopic rod 300 from affecting the storage and use of the heat preservation device.

[0071] As a specific embodiment of the present invention, the heat preservation and protection component 100 is provided with two fixing parts, one of the two fixing parts is provided corresponding to the first end of the heat preservation and protection component 100, and the other of the two fixing parts is provided corresponding to the second end of the heat preservation and protection component 100. To facilitate adjustment and folding, a telescopic rod 300 is provided and fixed between the two fixing parts.

[0072] In some optional embodiments, a positioning groove is provided between the two fixed parts. When the telescopic rod 300 moves to the retracted position, it drives the thermal insulation and protection component 100 to be closed and drives the two fixed parts to move closer, so that the thermal insulation and protection component 100 is stored in the positioning groove between the two fixed parts. The setting of the positioning groove can further optimize the storage function and protect the thermal insulation and protection component 100 in the closed storage state.

[0073] In addition, taking the application of the heat preservation device of the utility model to an electrolytic cell as an example, the heat preservation device cover can be specifically arranged outside the electrolytic cell body. In the use state, the two fixed parts arranged at the two ends of the heat preservation device play a limiting role, which is used to limit the electrolytic cell body between the two fixed parts. Furthermore, the two ends of the heat preservation device are provided with a shrinkage rope 140, and the electrolytic cell body may be provided with a connecting rod and other structures. When in use, the heating belt 200 and other heating components can be optionally abutted with the electrolytic cell body or the connecting rod and other structures arranged on the electrolytic cell body. After tightening the shrinkage rope 140, the shrinkage rope 140 can also be fixed to the electrolytic cell body or to the connecting rod and other structures arranged on the electrolytic cell body, so as to further optimize the heat preservation and protection function.

[0074] In the present invention, the heat preservation and protection assembly 100 can be configured as a multi-layer structure with two layers, three layers or other multiple layers stacked sequentially from the inside to the outside, and the heating layer 111 is used as the inner layer. Figure 3 In one embodiment, the thermal insulation and protection component 100 further includes an intermediate thermal insulation layer 112 and a protection layer 113 sequentially stacked outside the heating layer 111 from the inside to the outside, and the support portion is disposed on the heating layer 111 .

[0075] The electrolytic cell body is heated by the heating layer 111 to prevent the internal diaphragm, substrate and other structures from being frozen due to the influence of the ambient temperature in the low-temperature use environment of the electrolytic cell, thereby causing damage to the electrolytic cell. The provision of the intermediate thermal insulation layer 112 can prevent excessive heat dissipation, thereby further optimizing the thermal insulation effect, reducing the heating time and achieving energy saving. The protective layer 113 can be used to further optimize the thermal insulation effect, and to protect the heating layer 111 and the intermediate thermal insulation layer 112 of the thermal insulation protection component 100. It can also be used to further protect equipment such as the electrolytic cell, to prevent rainwater, sand and gravel from entering other layer structures or even entering equipment such as the electrolytic cell, thereby affecting the use of the thermal insulation protection component 100 and equipment such as the electrolytic cell.

[0076] Furthermore, the telescopic rod 300 is disposed between the middle insulation layer 112 and the protective layer 113, so as to protect the telescopic rod 300 through the protective layer 113, thereby preventing the telescopic rod 300 from being directly exposed to the outside and affecting the service life. The protective layer 113 can be a protective cover or protective film with waterproof, windproof and dustproof functions, or a coating with waterproof function, etc., which is not limited here.

[0077] Optionally, the intermediate insulation layer 112 can be made of a material with a small thermal conductivity. Specifically, in the present invention, the intermediate insulation layer 112 is made of an insulation material such as polyurethane that has excellent waterproof, anti-corrosion, and anti-aging properties.

[0078] Furthermore, the heating layer 111 has an inner insulation layer, which is covered on a side of the support portion away from the middle insulation layer 112, and is used to construct the heating layer 111 shown. In some specific embodiments of the utility model, the inner heating layer 111 shown can be made of polyurethane or other materials with heat conduction function and certain flexibility. The heating layer 111 and the middle insulation layer 112 are both provided with insulation materials made of polyurethane. Since the polyurethane itself is soft and elastic, the insulation protection component 100 can be opened or closed, which is convenient for the use and storage of the insulation device. In addition, the heating layer 111 and the middle insulation layer 112 can also play a supporting and limiting role, which is used to enclose the heating components such as the heat-generating belt 200 and ensure that the limiting rope 131 of the support portion can be firmly connected to support the heating components such as the heat-generating belt 200, so as to avoid displacement of the heating components such as the heat-generating belt 200 and affect the actual use.

[0079] Reference Figure 3 , Figure 4 In one embodiment, the fixing part includes a first fixing ring 121 and a second fixing ring 122, wherein the first fixing ring 121 is disposed on the heating layer 111, and the second fixing ring 122 is disposed on the protective layer 113. The first fixing ring 121 and the second fixing ring 122 can play a role of fixing and supporting, and can also be used to optimize the windproof protection performance of the heat preservation device.

[0080] It should be noted that the first fixing ring 121 and the second fixing ring 122 can be independently provided, or the first fixing ring 121 and the second fixing ring 122 can be integrally formed or connected into one by means of snap connection, sleeve connection, screw connection, etc. The positions of the first fixing ring 121 and the second fixing ring 122 can correspond to each other or be independent of each other.

[0081] Optionally, there are two first fixing rings 121, one of the two first fixing rings 121 is arranged at the first end of the heat preservation and protection component 100, and the other is arranged at the second end of the heat preservation and protection component 100. Both ends of each heating component such as the heat-generating belt 200 are respectively fixed on the two first fixing rings 121. There are two second fixing rings 122, one of the two second fixing rings 122 is arranged at the first end of the heat preservation and protection component 100, and the other is arranged at the second end of the heat preservation and protection component 100. Both ends of each telescopic rod 300 are respectively fixed on the two second fixing rings 122. The support part is optionally connected and fixed to the first fixing ring 121, the second fixing ring 122, or between the first fixing ring 121 and the second fixing ring 122, which is not limited here.

[0082] In addition, it should be noted that, according to different requirements of actual use, the first fixing ring 121 can be optionally set as a rigid structure to further optimize the protection function; or, the first fixing ring 121 can be set as a structure with a certain flexibility to facilitate storage and use while optimizing the protection performance, and suitable for electrolytic cells of different sizes and models; or, the first fixing ring 121 can be set as an annular structure composed of a plurality of fixing structures, and the size of the first fixing ring 121 can be adjusted by disassembling and assembling some fixing structures to be suitable for use in electrolytic cells of different sizes and models; the first fixing ring 121 can be set according to different actual requirements, which is not limited here. The embodiment of the second fixing ring 122 refers to the first fixing ring 121, and is not described here one by one.

[0083] Reference Figure 3 In one embodiment, the heat preservation device further includes a plurality of shrinkage ropes 140 , which are at least arranged at the first end and the second end of the heat preservation and protection component 100 for tightening the heat preservation and protection component 100 .

[0084] In the present invention, the first end and the second end of the heat preservation and protection component 100 are optionally set to be open, and the first end and the second end of the heat preservation and protection component 100 correspond to the port settings at both ends of the heat preservation device, and the first end of the heat preservation and protection component 100 is connected to the second end for the electrolytic cell and other equipment to be mounted. The shrink rope 140 plays a tightening role, and is used to open the port of the heat preservation device by loosening the shrink rope 140 when mounting the electrolytic cell and other equipment or when removing the mounting of the electrolytic cell and other equipment; and when the electrolytic cell needs to be insulated and protected, the heat preservation device is tightened by tightening the shrink rope 140, so that the heat preservation device plays a role similar to a storage bag, so as to prevent the electrolytic cell from shifting or even moving out of the heat preservation device. In low temperature, rainy days, and windy environments, the electrolytic cell and other equipment can also be protected by tightening the shrink rope 140 to prevent the electrolytic cell and other equipment from being affected by the external environment.

[0085] Reference Figure 3 , Figure 4 In one embodiment, the heat preservation device further includes a temperature control component 150. Taking the heating component including the heat-generating belt 200 as an example, the temperature control component 150 is electrically connected to the plurality of heat-generating belts 200 and is used to control the operation of the plurality of heat-generating belts 200 according to the received temperature control signal.

[0086] Optionally, a temperature control signal can be directly input through an input device such as a mechanical button or a touch screen provided on the temperature control component 150, or through a connection terminal such as a signal interface, and the temperature control component 150 controls the operation of multiple heating components such as the heating belts 200 according to the received temperature control signal; or, a temperature detection device such as a temperature sensor is provided, the temperature detection device is used to detect the ambient temperature and / or the electrolytic cell temperature, the temperature control component 150 is connected to the temperature detection device, the temperature detection device is used to generate a temperature control signal when the ambient temperature and / or the electrolytic cell temperature reaches a preset temperature threshold, and the temperature control component 150 controls the operation of multiple heating components such as the heating belts 200 according to the received temperature detection signal; the specific method of receiving the temperature control signal can be set according to the actual situation, which is not limited here.

[0087] When applied to an electrolytic cell, the heat preservation device can be implemented in the following manner or in other manners:

[0088] Before use, adjust the length of the telescopic rod 300 according to the length of the electrolytic cell body, and lock the telescopic rod 300 with a locking member after the adjustment of the length of the telescopic rod 300 is completed. During use, the electrolytic cell body is lifted with the assistance of a crane and a jack, so that the electrolytic cell body is inserted from one end of the insulation device to the other end of the insulation device, so that the insulation device is sleeved outside the electrolytic cell body. Tighten the shrink rope 140 provided on the insulation device to tighten and fix the insulation device. Power on the temperature control components 150 such as the temperature control box, and after setting the temperature control heating belt 200 and other heating components to work, the electrolytic cell is transported and stored.

[0089] During use, the electrolytic cell body and the heat preservation device are used as a whole, and the heat preservation protection function is realized by the heating components such as the heat-generating belt 200 fixed on the limit rope 131. The heat-generating belt 200 and other heating components will be heated to a set temperature (the set temperature can be but not limited to any temperature range, any value within the temperature range of 15°C to 25°C, or other specified temperature values); the intermediate heat-insulating layer 112 made of heat-insulating materials such as polyurethane plays a further heat-insulating role to prevent heat loss; the protective layer 113 and the telescopic rod 300 play a role in rainproof, dustproof and preliminary hard protection.

[0090] After use, the locking member provided at the fixed part is opened to release the telescopic rod 300, and the telescopic rod 300 is moved to the retracted position by moving the telescopic rod 300, and the telescopic rod 300 drives the heat preservation protection assembly 100 to be completely closed to the closed position, so as to directly fold and store the heat preservation cover device. In implementation, the telescopic rod 300 can be moved and retracted after use is completed and the connection between the heat preservation device and the electrolytic cell body is released, or the connection between the heat preservation device and the electrolytic cell body can be released during the process of moving the telescopic rod 300, which is not limited here.

[0091] The utility model also provides an electrolytic cell, which includes an electrolytic cell body and the above-mentioned heat preservation device, wherein the heat preservation device is mounted outside the electrolytic cell body. Since the electrolytic cell adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, so it will not be described one by one here.

[0092] The utility model is designed in a targeted manner according to the technical specifications and characteristics of the existing electrolytic cells, and the thermal insulation protection component 100 of the thermal insulation device is set into a multi-layer structure. Through the multi-layer thermal insulation design, the problem of unsatisfactory protective insulation effect during the transportation and storage of the electrolytic cell in the cold northern regions is solved. Taking the heating component including the heat-generating belt 200 as an example, the curved design of the heat-generating belt 200 is used to improve the heat dissipation and thermal insulation efficiency and facilitate the storage of the thermal insulation device. The middle thermal insulation layer 112 is made of polyurethane foam insulation material, which has good softness and elasticity, and can also facilitate the opening and use of the thermal insulation device and the storage; the telescopic rod 300 provided in the thermal insulation protection component 100 can be extended and contracted, so that the overall length of the thermal insulation device is adjustable, which can not only meet the use of electrolytic cells of different lengths during use, but also facilitate storage and realize flexible use and storage.

[0093] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heat preservation device, characterized in that: Applied to an electrolytic cell, the heat preservation device comprises: A heat preservation and protection component, wherein the heat preservation and protection component has a heating layer and has a first end and a second end opposite to each other along its length direction; Multiple heating components are arranged in the heating layer, and multiple heating components are arranged along the circumference of the thermal insulation and protection component. Each heating component extends from the first end of the thermal insulation and protection component to the second end of the thermal insulation and protection component.

2. The heat preservation device according to claim 1, characterized in that: The thermal insulation protection component is also provided with: A fixing part, at least two of which are arranged at intervals along the length direction of the thermal insulation and protection component; A supporting portion is disposed between at least two of the fixing portions and is used to fix the plurality of heating components.

3. The heat preservation device according to claim 2, characterized in that: The support portion includes a plurality of position limiting ropes that are sequentially spaced apart, and the heating component is disposed between at least two adjacent position limiting ropes.

4. The heat preservation device according to claim 3, characterized in that: The heating assembly comprises heat-generating belts, two adjacent heat-generating belts are arranged at intervals, and each heat-generating belt is arranged in a curved shape between two adjacent limiting ropes.

5. The heat preservation device according to claim 3, characterized in that: Each of the limit ropes has a plurality of limit points arranged at intervals, and the limit points are used to fix the heating component.

6. The heat preservation device according to claim 2, characterized in that: The thermal insulation and protection component can be moved open or closed. The thermal insulation and protection component is provided with a telescopic rod. The telescopic rod is movably switched between an extended position and a retracted position and is arranged between at least two fixed parts. When the telescopic rod moves to the extended position, it drives the thermal insulation and protection component to be opened, and when the telescopic rod moves to the retracted position, it drives the thermal insulation and protection component to be closed.

7. The heat preservation device according to claim 6, characterized in that: The fixing portion is provided with a locking member, and the locking member is movably switched between a locking state and an unlocking state. In the locking state, the locking member locks the telescopic rod; in the unlocking state, the locking member releases the telescopic rod.

8. The heat preservation device according to claim 2, characterized in that: The thermal insulation and protection component also includes an intermediate thermal insulation layer and a protection layer which are sequentially stacked outside the heating layer from the inside to the outside, and the support part is arranged on the heating layer.

9. The heat preservation device according to claim 8, characterized in that: The fixing portion includes a first fixing ring and a second fixing ring, wherein the first fixing ring is arranged on the heating layer, and the second fixing ring is arranged on the protective layer.

10. The heat preservation device according to claim 1, characterized in that: The heat preservation device also includes a plurality of shrinkage ropes, which are at least arranged at the first end and the second end of the heat preservation and protection component for tightening the heat preservation and protection component.

11. The heat preservation device according to any one of claims 1 to 10, characterized in that: The heat preservation device also includes a temperature control component, the heating component includes a heat-generating belt, and the temperature control component is electrically connected to the plurality of heat-generating belts and is used to control the operation of the plurality of heat-generating belts according to a received temperature control signal.

12. An electrolytic cell, characterized in that: It comprises an electrolytic cell body and a heat preservation device as described in any one of claims 1 to 11, wherein the heat preservation device is covered outside the electrolytic cell body.

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