Electrode sheet production device for hydrogen production by electrolysis of water

Abstract

The application provides a production device for an electrode sheet for hydrogen production by electrolysis of water, comprising a heating channel, a conveying assembly and a turnover assembly. The heating channel is a hollow structure. An inlet and an outlet communicating with the hollow structure are arranged on the two sides of the heating channel. Heating pieces are arranged above and below the hollow structure. The conveying assembly comprises a conveying belt and a driving part for driving the conveying belt. The conveying belt penetrates the heating channel from the inlet and the outlet. A slit cavity is arranged in the middle of the conveying belt perpendicular to the conveying direction. The turnover assembly is arranged in the hollow structure and in the slit cavity. When the electrode sheet is conveyed on the conveying belt and passes through the turnover assembly, the turnover assembly can intercept the electrode sheet, turn it over and place it on the conveying belt. Compared with the prior art, the hollow structure of the electrode sheet heating channel is heated and conveyed by the cooperation of the conveying assembly and the turnover assembly, so that the heating effect of the electrode sheet is good and the quality of the produced electrode sheet is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrode sheet production and manufacturing, in particular to an electrode sheet production device for water electrolysis hydrogen production. BACKGROUND

[0002] Hydrogen energy, as an efficient and green environmental protection energy, has been widely valued by the world, and water electrolysis hydrogen production is a widely used hydrogen production method. In the water electrolysis hydrogen production equipment, the core component is the electrode. The electrode is inserted into the electrolytic tank filled with electrolyte and is connected with direct current, so that hydrogen ions and oxygen ions are ionized. The hydrogen ions receive electrons at the cathode, and then hydrogen gas is generated.

[0003] The electrode is usually made of foamed nickel as a base material. The base material is immersed in a medicated box containing noble metal liquid. The material with conductive performance and catalytic performance is attached to the base material by in-situ growth method, or electrodeposition method, or adhesive method, or surface coating method, etc. Then the base material is heated, drained, washed and dried to obtain an electrode sheet. At present, the heating process of the electrode sheet is generally completed by using a tunnel furnace. The tunnel furnace has a continuous conveying belt. The electrode sheet is placed on the conveying belt and passes through the tunnel furnace to dry the electrode. However, since the electrode sheet is conveyed on the conveying belt, one side of the electrode sheet is always in contact with the conveying belt, and the heating degree of the two sides of the electrode sheet is different. The heating effect of the electrode sheet is uneven, and the liquid attached to the electrode sheet reacts differently, which affects the production quality of the electrode sheet. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide an electrode sheet production device for water electrolysis hydrogen production, which solves the problem that the heating degree of the electrode sheet is different in the heating process, affecting the heating effect.

[0005] To achieve the above-mentioned purposes and other related purposes, the present application provides an electrode sheet production device for water electrolysis hydrogen production, which comprises:

[0006] A heating channel, the heating channel is a hollow structure, the two sides of the heating channel are respectively provided with an inlet and an outlet communicating with the hollow structure, and the upper and lower parts of the hollow structure are arranged with heating elements, and the heating elements are used for heating the electrode sheet in the hollow structure;

[0007] A conveying assembly, the conveying assembly comprises a conveying belt and a driving part for driving the conveying belt, the conveying belt penetrates through the heating channel from the inlet and the outlet, and the conveying belt is provided with a slit cavity in the middle part perpendicular to the conveying direction.

[0008] A turning assembly is arranged in the hollow structure and in the slit cavity, and when the electrode sheet is conveyed on the conveying belt and passes through the turning assembly, the turning assembly can intercept the electrode sheet and turn it over and then place it on the conveying belt.

[0009] Optionally, the turning assembly comprises a turning member, a baffle and a bottom plate, when the electrode sheet does not pass through the turning assembly, the baffle and the bottom plate are connected and form an included angle space, the baffle is arranged perpendicularly to and higher than the conveying surface of the conveying belt, the bottom plate is arranged parallel to the conveying surface of the conveying belt, and the upper surface of the bottom plate is lower than the conveying surface of the conveying belt, and the bottom plate is located on the side of the baffle facing the conveying front end; when the electrode sheet passes through the turning assembly, it is intercepted by the baffle, at this time the turning member rotates the baffle and the bottom plate, so that the baffle is turned over to be parallel to the conveying surface of the conveying belt, and the electrode sheet continues to be conveyed on the conveying belt after completing the turning over in the included angle space.

[0010] Optionally, the turning member comprises a support rod, a fixed block and a sliding block, the support rod is fixedly arranged in the slit cavity and parallel to the conveying direction of the conveying belt, the fixed block is fixedly connected to the support rod and the sliding block is slidingly connected to the support rod, the sliding block is located at the front end in the conveying direction, the fixed block is hingedly connected with a first connecting rod, the sliding block is hingedly connected with a second connecting rod, the first connecting rod and the second connecting rod are hingedly connected with each other, and the baffle is fixed to the second connecting rod.

[0011] Optionally, a driving member for driving the sliding block to slide is arranged on the support rod away from the baffle, the driving member comprises a motor and a screw rod, and a screw hole threadedly connected with the screw rod is arranged on the sliding block.

[0012] Optionally, the opposite surfaces of the baffle and the bottom plate are both provided with a porous elastic supporting material.

[0013] Optionally, a hinge member is connected between the baffle and the bottom plate, the hinge member comprises a rotating shaft and a rotating sleeve, one side of the rotating shaft is fixed to the baffle, one side of the rotating sleeve is fixed to the bottom plate, an elastic member is sleeved on the rotating shaft and the rotating sleeve, the elastic member keeps the included angle between the rotating shaft and the rotating sleeve less than 60°, and a stopper is arranged on the sliding block, when the bottom plate is parallel to the conveying surface of the conveying belt, the stopper keeps the rotating shaft and the rotating sleeve at an angle of 90°.

[0014] Optionally, the diameter of the rotating shaft is greater than the thickness of the bottom plate or the thickness of the baffle, and the hinge member is not higher than the conveying surface of the conveying belt.

[0015] Optionally, the length of the baffle and the length of the bottom plate are both greater than half the length of the electrode sheet, and the width of the baffle and the width of the bottom plate are both greater than half the width of the electrode sheet.

[0016] Optionally, the conveying belt is two, and the two conveying belts are respectively located at two sides of the conveying position, and the two conveying belts form the slit cavity.

[0017] Optionally, the surface of the conveying belt is uniformly arranged with hollows.

[0018] As described above, the production device in the application is used for heating the electrode sheet in the production process, and when the production device is used, the electrode sheet is conveyed into the hollow structure of the heating channel through the conveying belt. When the electrode sheet is conveyed to the turnover assembly, the turnover assembly intercepts the electrode sheet, then turns over and places the electrode sheet on the conveying belt for continuous conveying. This makes the electrode sheet heated in the heating channel, then turned over and heated again, so that the heat of the electrode sheet is uniform, and the heating effect of the electrode sheet is ensured. Compared with the prior art, in the scheme, the electrode sheet is turned over and heated in the hollow structure of the electrode sheet heating channel through the cooperation of the conveying assembly and the turnover assembly, so that the heating effect of the electrode sheet is good, and the quality of the produced electrode sheet is high. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structure schematic view of a production device of an electrode sheet for hydrogen production by electrolysis of water according to an example of the application is shown.

[0020] Figure 2 A side sectional view of a production device of an electrode sheet for hydrogen production by electrolysis of water according to an example of the application is shown.

[0021] Figure 3 A structure schematic view of a turnover assembly in a production device of an electrode sheet for hydrogen production by electrolysis of water according to an example of the application is shown.

[0022] Figure 4 Another structure schematic view of a turnover assembly in a production device of an electrode sheet for hydrogen production by electrolysis of water according to an example of the application is shown.

[0023] The example includes the following:

[0024] heating channel 10, hollow structure 11, inlet 12, outlet 13, heating member 14, ventilation member 15,

[0025] conveying mechanism 20, conveying belt 21, slit cavity 22,

[0026] baffle 30, bottom plate 31, porous elastic supporting material 32, hinged member 33, rotating shaft 34, rotating sleeve 35,

[0027] supporting rod 40, fixed block 41, first connecting rod 42, sliding block 43, screw hole 44, resisting block 45, second connecting rod 46, driving member 47, screw rod 48. DETAILED DESCRIPTION

[0028] Following, the advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the specification. The present application can also be implemented or applied by other different specific embodiments, and various modifications or changes can be made to the details in the specification based on different views and applications without departing from the spirit of the present application.

[0029] Please refer to Figures 1 to 4 It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concepts of the present application, and thus the diagrams only show the components related to the present application, not the number, shape and size of the components when actually implemented. The actual implementation of each component can be arbitrarily changed in terms of shape, number and proportion, and the component layout pattern can also be more complex. The structures, proportions, sizes, etc. shown in the diagrams attached to the specification are only used to understand and read the content disclosed in the specification by those skilled in the art, and do not limit the conditions under which the present application can be implemented, so they do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technology disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the specification are only for the convenience of understanding and are not used to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

[0030] Before the embodiments of the present application are described in detail, the application environment of the present application is described. The technology of the present application is mainly applied to the electrode sheet manufacturing process in the electrolyte hydrogen production equipment, especially to the polishing process step in the electrode sheet manufacturing process. The present application solves the technical problems of inaccurate polishing precision control and time-consuming and laborious in the polishing process of the electrode sheet. The present application can automatically polish the electrode sheet by setting the polishing track.

[0031] The specific structure of the electrode sheet production device for water electrolysis hydrogen production in the present application is combined with reference to Figure 1 and Figure 4 The production device comprises:

[0032] A heating channel 10, the heating channel 10 is a hollow structure 11, the two sides of the heating channel 10 are respectively provided with an inlet 12 and an outlet 13 communicating with the hollow structure 11, the upper and lower parts of the hollow structure 11 are arranged with heating pieces 14, and the heating pieces 14 are used for heating the electrode sheet in the hollow structure 11;

[0033] A conveying assembly, which comprises a conveying belt 21 and a driving part for driving the conveying belt 21, the conveying belt 21 runs through the heating channel 10 from the inlet 12 and the outlet 13, and the middle part of the conveying belt 21 is provided with a slit cavity 22.

[0034] A turning assembly, which is located in the hollow structure 11 and in the slit cavity 22, when the electrode sheet is conveyed on the conveying belt 21 and passes through the turning assembly, the turning assembly can intercept the electrode sheet and turn it over and then place it on the conveying belt 21.

[0035] Specifically, the heating channel 10 can adopt the furnace body of the tunnel furnace in the prior art, and the heating element 14 inside can also adopt the heating element 14 in the tunnel furnace in the prior art. The heating element 14 can be arranged adaptively according to the heating channel 10, such as sparse heating element 14 at the center of the heating channel 10. The driving part can realize the conveying of the electrode sheet in the whole heating channel 10 by the conveying belt 21, and the turning assembly is located in the middle part of the hollow structure 11.

[0036] The upper end of the tunnel furnace is provided with a ventilation element 15, which communicates with the hollow structure 11 and is used to provide circulating air in the hollow structure 11. For example, Figure 2 As the temperature in the middle of the heating channel 10 is high and the ventilation is poor, the ventilation element 15 is arranged in the upper part of the upper end of the heating channel 10. The hollow structure 11 is ventilated according to the situation in the heating channel 10, so that the ventilation states of all parts of the hollow structure 11 are basically consistent, which is beneficial to improve the drying effect of the electrode sheet. Specifically, the ventilation element 15 can be composed of a pipeline air pump, which pumps air into or out of the hollow structure 11.

[0037] In the specific implementation process, the electrode sheet is conveyed into the hollow structure 11 of the heating channel 10 by the conveying belt 21. When the electrode sheet is conveyed to the turning assembly, the turning assembly intercepts the electrode sheet, then turns it over and places it on the conveying belt 21 for continuous conveying. This makes the electrode sheet heated in the heating channel 10, then turned over and heated again, which can make the heat of the electrode sheet uniform, thereby ensuring the heating effect of the electrode sheet.

[0038] In some embodiments, the turning component comprises a turning member, a baffle 30 and a bottom plate 31, when the electrode sheet does not pass through the turning component, the baffle 30 and the bottom plate 31 are connected and form an included angle space, the baffle 30 is arranged perpendicularly to the conveying surface of the conveying belt 21 and is higher than the conveying surface, the bottom plate 31 is arranged parallel to the conveying surface of the conveying belt 21 and the upper surface of the bottom plate 31 is lower than the surface of the conveying belt 21, and the bottom plate 31 is located on the side of the baffle 30 towards the conveying front end; when the electrode sheet passes through the turning component, the baffle 30 intercepts the electrode sheet, at this time the turning member rotates the baffle 30 and the bottom plate 31, so that the baffle 30 is turned to be parallel to the conveying surface of the conveying belt 21, and the electrode sheet completes turning in the included angle space and continues to be conveyed on the conveying belt 21.

[0039] In the specific implementation process, Figure 2 As shown in the figure, the arrow direction represents the conveying direction, the electrode sheet is conveyed from right to left in the heating channel 10, when the electrode sheet passes through the turning component, the electrode sheet is blocked by the baffle 30, at this time the baffle 30 is located on the bottom plate 31, the baffle 30 and the bottom plate 31 are rotated in the counterclockwise direction by the turning member, so that the baffle 30 is turned to be lower than the conveying surface of the conveying belt 21, and the bottom plate 31 is turned to be vertical, this process can turn the electrode sheet in the included angle space to the surface of the baffle 30, when the baffle 30 is turned to be lower than the conveying surface of the conveying belt 21, as shown in the figure, Figure 4 The electrode sheet completes turning and is placed on the conveying belt 21 again, and the conveying belt 21 can continue to convey the electrode sheet to the left.

[0040] In some embodiments, the turning member comprises a support rod 40, a fixed block 41 and a sliding block 43, the support rod 40 is fixedly arranged in the slot cavity 22 and is parallel to the conveying direction of the conveying belt 21, the support rod is fixedly connected with the fixed block 41 and slidingly connected with the sliding block 43, the sliding block 43 is located at the front end in the conveying direction, the fixed block 41 is hingedly connected with a first connecting rod 42, the sliding block 43 is hingedly connected with a second connecting rod 46, the first connecting rod 42 and the second connecting rod 46 are hingedly connected with each other, and the baffle 30 is fixed to the second connecting rod 46. For example, Figure 3 and Figure 4 As shown in the figure, the support rod 40 is at least two, the two ends of the support rod 40 are fixedly connected in the heating channel 10, by sliding the sliding block 43 on the support rod 40, the second connecting rod 46 and the first connecting rod 42 can be driven to move upwards or downwards at the connection, when the connection of the first connecting rod 42 and the second connecting rod 46 moves upwards, the second connecting rod 46 can remain vertical, thereby making the baffle 30 remain in the vertical direction; when the connection of the second connecting rod 46 and the second connecting rod 46 moves downwards, the baffle 30 moves with the second connecting rod 46, thereby the baffle 30 and the bottom plate 31 are turned, and the turning of the electrode sheet is realized.

[0041] In some embodiments, the support rod 40 is provided with a driving member 47 for driving the sliding block 43 to slide, the driving member 47 comprising a motor and a screw rod 48, and the sliding block 43 is provided with a threaded hole 44 for screwing with the screw rod 48. For example, Figure 3 and Figure 4 As shown, in order to facilitate the driving of the sliding block 43, the driving member 47 is installed on the support rod 40, and the sliding block 43 is driven by the motor and the screw rod 48, so that the baffle 30 and the bottom plate 31 rotate stably and slowly, thereby ensuring that the electrode sheet is not damaged during the turning process.

[0042] In some embodiments, the opposite surfaces of the baffle 30 and the bottom plate 31 are provided with a porous elastic support material 32. For example, Figure 3 and Figure 4 As shown, the porous elastic material is arranged on the inner wall of the included angle space, i.e. the position required to be in contact with the electrode sheet, which fully ensures that the electrode sheet is not damaged during the turning process.

[0043] In some embodiments, a hinge member 33 is connected between the bottom plate 31 and the baffle 30, the hinge member 33 comprising a rotating shaft 34 and a rotating sleeve 35, the rotating shaft 34 being fixed to one side of the baffle 30, the rotating sleeve 35 being fixed to one side of the bottom plate 31, an elastic member being sleeved on the rotating shaft 34 and the rotating sleeve 35, the elastic member keeping the included angle between the rotating shaft 34 and the rotating sleeve 35 less than 60°, and a stop block 45 being arranged on the sliding block 43, the stop block 45 keeping the rotating shaft 34 and the rotating sleeve 35 at 90° when the bottom plate 31 is parallel to the conveying surface of the conveying belt 21.

[0044] In the specific implementation process, as shown in Figure 3 , Figure 4 The arrangement of the rotating shaft 34, the rotating sleeve 35 and the elastic member can make the baffle 30 and the bottom plate 31 connected as a whole and keep a certain angle, in order to facilitate the electrode sheet to turn better in the included angle space, the included angle between the baffle 30 and the bottom plate 31 can be set to be less than 60°. In order to facilitate the baffle 30 and the bottom plate 31 to rotate to the required position, and in order to make the electrode sheet smoothly enter the included angle space, when the bottom plate 31 is in the initial position, the bottom plate 31 and the baffle 30 can be limited to be at a right angle by the cooperation of the stop block 45 and the second connecting rod 46.

[0045] In some embodiments, the diameter of the rotating shaft 34 is greater than the thickness of the bottom plate 31 or the thickness of the baffle 30, and the hinge member 33 is not higher than the conveying surface of the conveying belt. For example, as shown in Figure 3 , Figure 4 This arrangement can make the side surface of the baffle 30 in contact with the rotating shaft 34 or the rotating sleeve 35, and facilitate the turning during the turning process.

[0046] In some embodiments, the length of the baffle 30 and the length of the bottom plate 31 are both greater than half of the length of the electrode sheet, and the width of the baffle 30 and the width of the bottom plate 31 are both greater than half of the width of the electrode sheet. For example, as shown in FIGS. 11 and 12, the width and length of the baffle 30 and the bottom plate 31 are set to a size such that the electrode sheet is in the included angle space between the baffle 30 and the bottom plate 31 when the electrode sheet is turned over, so as to avoid the electrode sheet from falling out of the included angle space and affecting the turning over process. Figure 3 、 Figure 4 In some embodiments, the width and length of the baffle 30 and the bottom plate 31 are set to a size such that the electrode sheet is in the included angle space between the baffle 30 and the bottom plate 31 when the electrode sheet is turned over, so as to avoid the electrode sheet from falling out of the included angle space and affecting the turning over process.

[0047] In some embodiments, the conveying belt 21 is two, and the two conveying belts 21 are respectively arranged on both sides of the conveying position, and the gap 22 is formed between the two conveying belts 21. For example, as shown in FIGS. 13 and 14, the arrangement of the two conveying belts 21 facilitates the travel of the gap 22, that is, the installation of the turning over assembly. Figure 3 Figure 4 Figure 1

[0048] In some embodiments, the surface of the conveying belt 21 is uniformly arranged with a hollow. The hollow conveying belt 21 can transmit heat and air, and is more conducive to heating the electrode sheet.

[0049] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical idea disclosed by the present application should be covered by the claims of the present application.​

Claims

1. A production apparatus for electrode sheets used in water electrolysis for hydrogen production, characterized in that, include: A heating channel, which is a hollow structure, has an inlet and an outlet on both sides that connect to the hollow structure. Heating elements are arranged above and below the hollow structure, and the heating elements are used to heat the electrode sheets in the hollow structure. A conveying assembly, comprising a conveyor belt and a drive unit for driving the conveyor belt, the conveyor belt passing through the heating channel from the inlet and the outlet, the conveyor belt having a slit cavity in the middle perpendicular to the conveying direction; A flipping assembly is located in the hollow structure and in the cavity. When the electrode sheet is conveyed on the conveyor belt through the flipping assembly, the flipping assembly can intercept the electrode sheet, flip it over, and place it on the conveyor belt. The flipping assembly includes a flipping component, a baffle, and a base plate. When the electrode sheet does not pass through the flipping assembly, the baffle and the base plate are connected to form an angled space. The baffle is perpendicular to the conveying surface of the conveyor belt and is arranged above the conveying surface. The base plate is parallel to the conveying surface of the conveyor belt, and the upper surface of the base plate is lower than the surface of the conveyor belt. The base plate is located on the side of the baffle facing the front end of the conveyor belt. When the electrode sheet passes the flipping assembly, it is intercepted by the baffle. At this time, the flipping component rotates the baffle and the bottom plate, causing the baffle to flip to the conveyor surface parallel to the conveyor belt. After the electrode sheet completes the flipping in the included angle space, it continues to be conveyed on the conveyor belt. The flipping component includes a support rod, a fixed block, and a slider. The support rod is fixedly installed in the cavity and parallel to the conveying direction of the conveyor belt. The fixed block is fixedly connected to the support rod, and the slider is slidably connected to it. The slider is located at the front end of the conveying direction. The fixed block is hinged to a first connecting rod, and the slider is hinged to a second connecting rod. The first connecting rod and the second connecting rod are hinged to each other. The baffle is fixed to the second connecting rod. A hinge is connected between the base plate and the baffle. The hinge includes a rotating shaft and a rotating sleeve. The rotating shaft is fixed to one side of the baffle, and the rotating sleeve is fixed to one side of the base plate. An elastic element is fitted onto the rotating shaft and the rotating sleeve. The elastic element keeps the baffle and the base plate at an angle of less than 60°. The slider is provided with a stop block. When the base plate is parallel to the conveying surface of the conveyor belt, the stop block keeps the baffle and the base plate at an angle of 90°.

2. The production apparatus for electrode sheets used in water electrolysis for hydrogen production according to claim 1, characterized in that: The support rod is provided with a driving component for driving the slider to slide. The driving component includes a motor and a lead screw. The slider is provided with a threaded hole that is threadedly connected to the lead screw.

3. The production apparatus for electrode sheets used in water electrolysis for hydrogen production according to claim 2, characterized in that: Both the baffle and the base plate have porous elastic support material on their opposing surfaces.

4. The production apparatus for electrode sheets used in water electrolysis for hydrogen production according to claim 3, characterized in that: The diameter of the rotating shaft is greater than the thickness of the base plate or the thickness of the baffle, and the hinge is not higher than the conveying surface of the conveyor belt.

5. The production apparatus for electrode sheets used in water electrolysis for hydrogen production according to claim 4, characterized in that: The length of the baffle and the length of the base plate are both greater than half the length of the electrode sheet, and the width of the baffle and the width of the base plate are both greater than half the width of the electrode sheet.

6. The apparatus for producing electrode sheets for hydrogen production by water electrolysis according to any one of claims 1-5, characterized in that: There are two conveyor belts, which are located on opposite sides of the conveying position, and the cavity is formed between the two conveyor belts.

7. The production apparatus for electrode sheets used in water electrolysis for hydrogen production according to claim 6, characterized in that: The surface of the conveyor belt is uniformly covered with perforations.

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