Drying equipment and drying device

Abstract

This invention provides a drying device and apparatus. The drying device is used to dry battery fuel catalysts. The drying device includes a support container and a heating assembly. The support container includes a support body and a cover. A drying section is formed on the support body to support the catalyst, and the cover can be closed onto the support body to seal the drying section. The heating assembly includes a heating element and a control element. The support container is placed on the heating element; the control element can control the cover to close or detach from the support body. In this invention, during the heating process, the cover detaches from the support body, facilitating the escape of moisture from the catalyst and ensuring the drying effect. After the heating process is completed, the cover is closed first, and then the heating element is turned off, preventing the dried battery fuel catalyst from contacting air again, ensuring the heating effect, preventing spontaneous combustion, and improving the safety of this invention.

Description

Technical Field

[0001] The utility model relates to the field of drying, and in particular to a drying device and a drying apparatus. Background Art

[0002] Fuel cell catalyst is one of the core materials of fuel cell stack. Since the platinum particles in fuel cell catalyst are extremely active and are supported on carbon carriers, fuel cell catalyst is flammable.

[0003] The production process of fuel cell catalysts includes a drying process. In order to achieve mass production of fuel cell catalyst products, the drying device and drying container of the fuel cell catalyst must be carefully designed to ensure production capacity and safety during the process.

[0004] In the related art, fuel cell catalysts usually include forced air drying and negative pressure drying. Among them, in the forced air drying method, the air adsorption problem of the fuel cell catalyst during the drying and dehydration process will cause the catalyst to spontaneously combust, posing a safety hazard and easily causing material waste. The negative pressure drying method, on the one hand, is limited by the conditions of the drying equipment, and the batch processing volume is small; on the other hand, because the drying environment needs to maintain a negative pressure, the dried powder will be extracted to the outside of the drying equipment, causing material loss; in addition, the fuel cell catalyst dried by negative pressure is in a vacuum environment during the drying process. After being taken out of the drying equipment, the oxygen content increases rapidly, which will increase the risk of spontaneous combustion of the fuel cell catalyst. Utility Model Content

[0005] In order to overcome the defects existing in the related art, the utility model provides a drying equipment and a drying device.

[0006] The embodiment of the utility model is achieved as follows:

[0007] A drying device for drying a fuel cell catalyst. The drying device comprises a carrying container and a heating assembly. The carrying container comprises a carrying body and a cover. The carrying body is provided with a drying portion for carrying the catalyst, and the cover can be covered on the carrying body to block the drying portion. The heating assembly comprises a heating element and a control element. The carrying container is placed on the heating element; the control element can control the cover to cover or detach from the carrying body.

[0008] In some embodiments, exemplarily, the heating assembly includes a heat exchange plate, and the heating elements are evenly distributed on the heat exchange plate to evenly heat the heat exchange plate.

[0009] In some embodiments, exemplarily, the heating element includes a liquid flow channel, the liquid flow channel is opened in the heat exchange plate, and is evenly distributed in the heat exchange plate; a heating medium flows in the liquid flow channel.

[0010] In some embodiments, the cover is exemplarily made of stainless steel. The control element comprises an electromagnetic generator, and the electromagnetic generator is arranged in the heat exchange plate.

[0011] In some embodiments, exemplarily, the electromagnetic generating element includes a magnetic core, a coil and a power source, the coil is wound on the magnetic core, and the coil is electrically connected to the power source.

[0012] In some embodiments, illustratively, a plurality of magnetic cores are evenly arranged in the heat exchange plate, and a plurality of coils are correspondingly arranged. The plurality of coils are all electrically connected to the power supply, and the plurality of coils are arranged in parallel.

[0013] In some embodiments, the carrier includes a container layer and a barrier layer, and the carrier is disposed on the container layer. A first clamping member is disposed on the container layer, and a second clamping member is disposed on the barrier layer, and the first clamping member can be clamped on the second clamping member.

[0014] In some embodiments, exemplarily, the container layer is configured to be a non-magnetic thermally conductive material.

[0015] In some embodiments, the barrier layer includes a connecting layer, a screen layer and a fixing layer, the second clamping member is arranged on the connecting layer, and the connecting layer can be clamped on the container layer. The screen layer is arranged between the connecting layer and the fixing layer, and the fixing layer is used to fix the screen layer on the connecting layer.

[0016] The utility model also provides a drying device, comprising a box and the drying device described in any one of the above embodiments, wherein the drying device is arranged in the box. The box is also provided with a pressure control component and a temperature display component, wherein the pressure control component is used to control the air pressure in the box, and the temperature display component is used to display the temperature in the box.

[0017] The beneficial effects of the embodiments of the utility model are:

[0018] When the drying device of the utility model is used, the battery fuel catalyst to be dried is placed on the carrier of the carrier container and placed in the drying section. After the placement is completed, the control element in the heating assembly is controlled to separate the cover from the carrier and move away from the carrier, and the heating element heats the carrier, thereby drying the catalyst in the drying section. After the drying is completed, the control element controls the cover to cover the carrier, seals the cover, and then turns off the heating element, and the heating operation is completed.

[0019] In the drying device of the utility model, during the heating operation, the cover body is separated from the carrier body, so that the moisture in the catalyst can be easily dissipated to the outside, thereby ensuring the drying effect. After the heating operation is completed, the cover body is first closed, and then the heating element is turned off, so that the dried battery fuel catalyst will no longer be corroded by water vapor in the air, thereby ensuring the heating effect. In addition, the dried battery fuel catalyst will not come into contact with the air, thereby avoiding its spontaneous combustion, improving the safety of the utility model, and also avoiding the loss of equipment or materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A structural schematic diagram of a carrying container of a drying device according to an embodiment of the utility model from one perspective;

[0022] Figure 2 A schematic structural diagram of a heating assembly of a drying device according to an embodiment of the utility model from one perspective;

[0023] Figure 3 A schematic structural diagram of a control element from one perspective of an embodiment of the utility model;

[0024] Figure 4 This is a structural schematic diagram of a drying device from one perspective of an embodiment of the utility model.

[0025] icon:

[0026] 100-carrying container; 110-carrying body; 111-container layer; 112-drying part; 113-first clamping piece; 115-barrier layer; 116-second clamping piece; 120-cover; 200-heating assembly; 210-heating element; 220-control element; 221-magnetic core; 222-coil; 223-power supply; 300-box; 310-pressure control assembly; 311-exhaust valve; 312-intake valve; 320-temperature display assembly. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1

[0034] The present embodiment provides a drying device to solve the problem in the related art that the battery fuel catalyst has low processing efficiency and is prone to spontaneous combustion during the drying and dehydration process, resulting in safety hazards and easy waste of materials.

[0035] See also Figures 1 to 3 , a drying device for drying a fuel cell catalyst. The drying device includes a carrying container 100 and a heating assembly 200. The carrying container 100 includes a carrying body 110 and a cover 120. The carrying body 110 is provided with a drying portion 112 for carrying the catalyst, and the cover 120 can be covered on the carrying body 110 to block the drying portion 112. The heating assembly 200 includes a heating element 210 and a control element 220. The carrying container 100 is placed on the heating element 210; the control element 220 can control the cover 120 to cover or detach from the carrying body 110.

[0036] Specifically, when using the drying device of this embodiment, the battery fuel catalyst to be dried is placed in the carrier container 100, that is, placed in the drying portion 112 of the carrier 110, and evenly spread on the drying portion 112. After placement, the carrier 110 is placed on the heating element 210, and the carrier 110 is heated by the heating element 210. During the heating process, the control element 220 controls the cover 120 to separate from the carrier 110 and not cover the carrier 110, so that the moisture in the battery fuel catalyst can escape from the carrier 110 to ensure the drying effect of this embodiment.

[0037] At the end of the heating process, the control element 220 controls the cover 120 to cover the carrier 110, seals the drying part 112 of the carrier 110, and prevents the dried battery fuel catalyst from contacting the outside air. Then, the heating element 210 is turned off to stop heating. In this way, the dried battery fuel catalyst will not be contaminated by moisture in the outside atmosphere, which will affect the drying effect. In addition, the battery fuel catalyst will not directly contact the atmosphere, and there is no risk of spontaneous combustion of the battery fuel catalyst due to the rapid increase in oxygen content after drying, thereby improving the overall safety and reliability of this embodiment.

[0038] Furthermore, the present embodiment heats the carrier 110 through the heating element 210, and then heats and dries the battery fuel catalyst in the carrier 110. The powder of the battery fuel catalyst will not float to the outside of the drying equipment. Compared with the related technology, the drying method of the present embodiment is safer, does not cause material loss, and is more economical.

[0039] It should be noted that, in actual use, the drying device of this embodiment can be used in conjunction with other boxes 300 or containers to achieve a better drying effect. Exemplarily, the carrier container 100 and the heating assembly 200 are both arranged in any closed container. Before drying, the air in the closed container is first evacuated, and then the cover 120 is separated from the carrier 110 for heating and drying; after drying, the cover 120 is first covered on the carrier 110, and then an inert gas is injected into the closed container until the air pressure inside and outside the closed container is balanced, and then the carrier container 100 is taken out to ensure that the battery fuel catalyst will not come into contact with the air during the entire drying process, further improving the drying effect and safety of this embodiment.

[0040] In some embodiments, for example, Figures 1 to 3 As shown, the heating assembly 200 includes a heat exchange plate, and the heating elements 210 are evenly arranged on the heat exchange plate to evenly heat the heat exchange plate. The heating elements 210 are evenly arranged on the heat exchange plate. When in use, the carrier 110 is placed on the heat exchange plate, and the plurality of heating elements 210 evenly heat the heat exchange plate, and the heat exchange plate evenly heats the carrier 110, thereby ensuring the heating effect of this embodiment.

[0041] In some embodiments, the heating element 210 includes a liquid flow channel, which is opened in the heat exchange plate and evenly arranged in the heat exchange plate; a heating medium flows in the liquid flow channel. By evenly arranging the liquid flow channel in the heat exchange plate and using the heating medium to heat the heat exchange plate, on the one hand, the overall heating process of the heat exchange plate is made more stable and uniform, and on the other hand, the heating speed of the heat exchange plate can be increased, thereby improving the drying efficiency of this embodiment.

[0042] It is understandable that the heating medium can be any suitable medium according to the actual situation. For example, in this embodiment, silicone oil is used as the heating medium. Silicone oil has high thermal stability, chemical stability, and electrical insulation. Silicone oil has stable chemical and physical properties at high temperatures and does not react with other substances. When heating is required, it can stably and reliably heat the entire heat exchange plate.

[0043] In some embodiments, for example, Figure 2 , Figure 3As shown, the cover 120 is set to be made of stainless steel. The control element 220 includes an electromagnetic generator, which is arranged in the heat exchange plate. The cover 120 is set to be made of stainless steel, so that the magnetic field generated by the electromagnetic generator can push the cover 120 away from or close to the electromagnetic generator, and the electromagnetic generator is arranged in the heat exchange plate, and the carrier 110 is placed on the heat exchange plate, that is, the electromagnetic generator can control the cover 120 to be close to or away from the carrier 110. Thereby, when heating, the electromagnetic generator is started to control the cover 120 to be away from the carrier 110, so that the water generated by the battery fuel catalyst in the carrier 110 during the heating process can be dissipated outwardly. After the heating is completed, the electromagnetic generator is turned off, or the electromagnetic generator is reversed to adsorb the cover 120 on the carrier 110, so that the carrier 110 remains sealed and the battery fuel catalyst in the carrier 110 is protected.

[0044] In some embodiments, for example, Figure 3 As shown, the electromagnetic generator includes a magnetic core 221, a coil 222 and a power supply 223. The coil 222 is wound on the magnetic core 221, and the coil 222 is electrically connected to the power supply 223. In actual use, the magnetic core 221 can be made of any suitable material according to actual conditions. For example, in this embodiment, a silicon steel sheet is used as the magnetic core 221, and the magnetic field generated by the coil 222 is concentrated by the magnetic core 221, so that a stronger magnetic field is formed inside and around the magnetic core 221. In addition, the magnetic core 221 can also reduce the leakage of the magnetic field, so that more magnetic energy can be effectively utilized, thereby improving the energy conversion efficiency. It is ensured that the electromagnetic generator can be normally adsorbed or pushed away from the cover body 120, thereby improving the structural rationality of this embodiment.

[0045] In some embodiments, for example, Figure 2 As shown, a plurality of magnetic cores 221 are evenly arranged in the heat exchange plate, and a plurality of coils 222 are correspondingly arranged. The plurality of coils 222 are all electrically connected to the power supply 223, and the plurality of coils 222 are arranged in parallel. A plurality of magnetic cores 221 and coils 222 are arranged in the heat exchange plate to increase the strength of the magnetic field generated by the electromagnetic generator, ensuring that the electromagnetic generator can close or detach the cover 120 from the carrier 110 at the appropriate time. Furthermore, a plurality of magnetic cores 221 and coils 222 are evenly arranged in the heat exchange plate, and the strength of the magnetic field in and near the heat exchange plate can be made uniform, so as to control the posture of the cover 120 when it approaches or moves away from the carrier 110, thereby improving the accuracy of the control of the cover 120 and also improving the reliability of this embodiment.

[0046] In some embodiments, for example, Figure 1As shown, the carrier 110 includes a container layer 111 and a barrier layer 115, and the carrier 110 is arranged on the container layer 111. A first clamping member 113 is arranged on the container layer 111, and a second clamping member 116 is arranged on the barrier layer 115, and the first clamping member 113 can be clamped on the second clamping member 116. The carrier 110 is arranged as the container layer 111 and the barrier layer 115, and the battery fuel catalyst to be dried is placed between the container layer 111 and the barrier layer 115. The barrier layer 115 protects the battery fuel catalyst, so as to avoid the battery fuel catalyst from being spilled or scattered from the carrier 110 due to various other reasons during the drying process, resulting in waste of materials, thereby improving the reliability of this embodiment.

[0047] It should be noted that the first clamping member 113 and the second clamping member 116 can be configured as any form of clamping structure, as long as the container layer 111 and the barrier layer 115 can be relatively fixed. Exemplarily, in this embodiment, the first clamping member 113 is configured as a protrusion, and the protrusion is arranged at the edge of the container layer 111 facing the barrier layer 115, and correspondingly, the second clamping member 116 is configured as a concave portion, and the concave portion is arranged at the edge of the barrier layer 115 facing the container layer 111, and the protrusion can mesh with the concave portion to achieve the clamping function.

[0048] In some embodiments, illustratively, the container layer 111 is set to a non-magnetic heat-conducting material. In this way, when the cover body 120 is controlled by the electromagnetic generator, the magnetic field generated by the electromagnetic generator will not affect the container layer 111, so that the cover body 120 can be stably and accurately matched with the carrier 110, and the container layer 111 can be stably and reliably placed on the heat exchange plate. In this embodiment, the specific material of the container layer 111 is not limited, as long as it can meet the non-magnetic and heat-conducting properties. Exemplarily, the container layer 111 can be set to alumina, quartz, etc., which can not only prevent the container layer 111 from being affected by the magnetic field, but also can normally heat and dry the battery fuel catalyst in the container layer 111, and can also prevent the container layer 111 from being corroded by the battery fuel catalyst.

[0049] In some embodiments, exemplarily, the barrier layer 115 includes a connecting layer, a screen layer and a fixed layer, and the second clamping member 116 is arranged on the connecting layer, and the connecting layer can be clamped on the container layer 111. The screen layer is arranged between the connecting layer and the fixed layer, and the fixed layer is used to fix the screen layer on the connecting layer. Among them, the screen layer is set to a stainless steel screen, and the mesh number of the stainless steel screen can be set according to the adaptability of the particle size of the battery fuel catalyst. In this embodiment, the mesh number of the screen is set to between 100 mesh and 500 mesh. The screen layer can allow the battery fuel catalyst to dissipate moisture normally when it is heated, and can also prevent the particles of the battery fuel catalyst from passing through the screen layer to protect the battery fuel catalyst. The connecting layer and the fixed layer are both set to a ring-shaped alumina sheet, and the connecting layer and the fixed layer can be fixed on the screen layer, and the fixing method can also be set to any existing form.

[0050] Example 2

[0051] See also Figure 4 This embodiment further provides a drying device, including a box 300 and the drying device in any one of the above embodiments, wherein the drying device is arranged in the box 300. The box 300 is also provided with a pressure control component 310 and a temperature display component 320, wherein the pressure control component 310 is used to control the air pressure in the box 300, and the temperature display component 320 is used to display the temperature in the box 300.

[0052] The drying device provided in this embodiment includes the drying device in any one of the above embodiments, that is, it has all the beneficial effects of the above drying devices, which will not be described in detail here.

[0053] Specifically, when using this embodiment, the battery fuel catalyst to be dried is placed in the drying part 112 on the container layer 111, and the barrier layer 115 is placed on the container layer 111, and the container layer 111 and the barrier layer 115 are mutually engaged. After confirming the engagement, the cover 120 is lightly covered at a suitable position on the barrier layer 115, and the carrier 110 is placed as a whole on the heat exchange plate in the box 300. Then, the electromagnetic generating element is started through the control element 220, so that the cover 120 is moved away from the carrier 110 under the action of the magnetic field, and the vacuum degree in the box 300 is slowly adjusted through the pressure control component 310. After the vacuum degree in the box 300 is close to -0.1MPa, the heating element 210 is started to start the heating and drying operation of the carrier 110.

[0054] The temperature display component 320 provided on the box 300 can always display the temperature inside the box 300. The temperature display component 320 cooperates with the heating component 200 to keep the box 300 at a suitable temperature throughout the drying process. After the drying is completed, a non-flammable gas is first introduced into the box 300 until the air pressure inside the box 300 is balanced with the external air pressure. The control element 220 closes the cover 120 on the carrier 110, and then the box 300 is opened, and the carrier 110 is taken out as a whole, and the drying operation is completed. The drying process is safe and reliable, without the risk of spontaneous combustion, and does not cause waste of materials.

[0055] In some embodiments, for example, Figure 4 As shown, a plurality of heating components 200, that is, a plurality of heat exchange plates, are arranged in the box body 300. In this way, the carrier 110 can be placed on each heat exchange plate, which can greatly improve the drying efficiency of this embodiment. In addition, when the cover body 120 is controlled by the electromagnetic generator, when the cover body 120 needs to be away from the carrier 110, the cover body 120 can be adsorbed on the lower surface of the upper heat exchange plate, making the control of the cover body 120 more reliable, and improving the structural rationality and practicality of this embodiment.

[0056] In some embodiments, for example, Figure 4 As shown, the box body 300 is provided with an exhaust valve 311 and an air inlet valve 312. The exhaust valve 311 is used to extract gas to the outside so that the air pressure in the box body 300 can be maintained at -0.1MPa during the heating and drying process. The air inlet valve 312 is used to introduce non-flammable gas into the box body 300 after the drying operation is completed so that the air pressure in the box body 300 can be restored to balance.

[0057] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A drying device for drying a fuel cell catalyst, characterized in that: include: A carrying container (100), the carrying container (100) comprising a carrying body (110) and a cover body (120); The carrier (110) is provided with a drying portion (112) for carrying a catalyst, and the cover (120) can be covered on the carrier (110) to seal the drying portion (112); A heating assembly (200), the heating assembly (200) comprising a heating element (210) and a control element (220); The carrying container (100) is placed on the heating element (210); the control element (220) can control the cover (120) to cover or detach from the carrying body (110).

2. The drying device according to claim 1, characterized in that: The heating assembly (200) comprises a heat exchange plate, and the heating elements (210) are evenly arranged on the heat exchange plate to evenly heat the heat exchange plate.

3. The drying device according to claim 2, characterized in that: The heating element (210) comprises a liquid flow channel, the liquid flow channel is opened in the heat exchange plate and is evenly distributed in the heat exchange plate; a heating medium flows in the liquid flow channel.

4. The drying device according to claim 2, characterized in that: The cover body (120) is made of stainless steel; The control element (220) comprises an electromagnetic generator, and the electromagnetic generator is arranged in the heat exchange plate.

5. The drying device according to claim 4, characterized in that: The electromagnetic generating element comprises a magnetic core (221), a coil (222) and a power source (223); the coil (222) is wound on the magnetic core (221); and the coil (222) is electrically connected to the power source (223).

6. The drying device according to claim 5, characterized in that: A plurality of the magnetic cores (221) are evenly distributed in the heat exchange plate, and a plurality of the coils (222) are correspondingly arranged; The plurality of coils (222) are all electrically connected to the power source (223), and the plurality of coils (222) are arranged in parallel.

7. The drying device according to claim 1, characterized in that: The carrier (110) comprises a container layer (111) and a barrier layer (115), and the carrier (110) is arranged on the container layer (111); A first clamping piece (113) is provided on the container layer (111), and a second clamping piece (116) is provided on the barrier layer (115); the first clamping piece (113) can be clamped on the second clamping piece (116).

8. The drying device according to claim 7, characterized in that: The container layer (111) is made of a non-magnetic heat-conducting material.

9. The drying device according to claim 7, characterized in that: The barrier layer (115) comprises a connecting layer, a screen layer and a fixing layer, the second clamping member (116) is arranged on the connecting layer, and the connecting layer can be clamped on the container layer (111); The screen layer is arranged between the connecting layer and the fixing layer, and the fixing layer is used to fix the screen layer on the connecting layer.

10. A drying device, characterized in that: It comprises a box (300) and the drying device according to any one of claims 1 to 9, wherein the drying device is arranged in the box (300); The box (300) is also provided with a pressure control component (310) and a temperature display component (320), wherein the pressure control component (310) is used to control the air pressure in the box (300), and the temperature display component (320) is used to display the temperature in the box (300).

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