Membrane electrode preparation device for producing hydrogen by electrolyzing water

Abstract

The utility model relates to the technical field of membrane electrode preparation for producing hydrogen by electrolyzing water, in particular to a membrane electrode preparation device for producing hydrogen by electrolyzing water, which comprises a device frame, an unwinding device, a coating device, a drying device and a winding device are sequentially arranged on the device frame from back to front, and a forced fitting device is further arranged on the device frame. The forced laminating device comprises a suction fan, an air suction pipe and an air suction roller, the suction fan is connected with the air suction roller through the air suction pipe, air suction micropores are formed in the periphery of the air suction roller, the air suction roller is mounted between the coating device and the drying device, and the side surface of the air suction roller is in contact with a running route opposite to one side with a catalyst. The membrane electrode preparation device for producing hydrogen by electrolyzing water has the advantages that the catalyst is firmly fixed on the diaphragm, and the product quality is favorably improved.

Description

Technical Field

[0001] This utility model relates to the field of membrane electrode preparation technology for hydrogen production by water electrolysis, and more specifically to a membrane electrode preparation device for hydrogen production by water electrolysis. Background Technology

[0002] In the process of preparing membrane electrodes for hydrogen production by water electrolysis, a catalyst needs to be coated on the membrane to attach the catalyst to the membrane and form a membrane electrode. The equipment used is the membrane electrode preparation device for hydrogen production by water electrolysis.

[0003] The membrane electrode assembly (MEA) for hydrogen production via water electrolysis includes a frame, and from back to front, an unwinding device, a coating device, a drying device, and a winding device are sequentially installed on the frame. The unwinding device releases the membrane and includes a roller for releasing the membrane. The coating device coats the catalyst onto the membrane and includes a spray head that sprays the catalyst onto the membrane. The drying device fixes the catalyst onto the membrane in a high-temperature environment and includes a high-temperature chamber with an inlet for the product to be dried and an outlet for the product. During use, the membrane to be cured enters the high-temperature chamber through the inlet, and the cured MEA exits through the outlet. The winding device coils the cured MEA and includes a winding roller for winding the MEA.

[0004] In the existing technology, the membrane electrode preparation device for water electrolysis to produce hydrogen does not have a component to force the catalyst to adhere to the membrane, resulting in a relatively loose connection between the catalyst and the membrane, which affects the product quality. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned shortcomings by providing a membrane electrode preparation device for electrolytic water hydrogen production that allows the catalyst to be firmly fixed on the membrane, thereby improving product quality.

[0006] The technical solution of this utility model is implemented as follows: A membrane electrode preparation device for water electrolysis to produce hydrogen includes a device frame, on which an unwinding device, a coating device, a drying device, and a winding device are sequentially installed from back to front. The unwinding device is a device for releasing the diaphragm, and it includes an unwinding roller for releasing the diaphragm. The coating device is a device for coating a catalyst onto the diaphragm, and it includes a spray head that can spray the catalyst onto the diaphragm. The drying device is a device for fixing the catalyst onto the diaphragm in a high-temperature environment, and it includes a high-temperature chamber with an inlet for drying the product and a product outlet. During use, the diaphragm to be cured is introduced from the inlet. The cured membrane electrode enters the high-temperature chamber and flows out from the product outlet. The winding device is a device that winds up the cured membrane electrode, which includes a winding roller that can wind the membrane electrode. The diaphragm forms a running path from the unwinding device, through the coating device, through the drying device to the winding device. The device is characterized by a forced bonding device installed on the frame. The forced bonding device includes a suction fan, a suction pipe, and a suction roller. The suction fan is connected to the suction roller by the suction pipe. The suction roller has suction micropores on its outer periphery. The suction roller is installed between the coating device and the drying device and contacts the running path opposite the side with the catalyst.

[0007] Furthermore, the suction roller also has a diamond mesh around its outer periphery.

[0008] The beneficial effects of this invention are: such a membrane electrode preparation device for hydrogen production by water electrolysis has the advantages of firmly fixing the catalyst on the membrane and improving product quality. Attached Figure Description

[0009] Figure 1 This is a side view of the structure of this utility model.

[0010] Figure 2 This is a schematic diagram showing the connection relationship of some components of this utility model.

[0011] The components include: 1. Frame; 2. Unwinding device; 21. Unwinding roller; 3. Coating device; 31. Spray head; 4. Drying device; 41. High temperature chamber; 5. Rewinding device; 51. Rewinding roller; 6. Running route; 7. Laminating device; 71. Fan; 72. Suction pipe; 73. Suction roller; 731. Suction micro-holes; 74. Diamond mesh; 75. Windproof cover; 76. Sealing strip. Detailed Implementation

[0012] The technical solution of this utility model will be further described below with reference to the embodiments.

[0013] like Figure 1 , 2As shown, a membrane electrode assembly (MEA) for hydrogen production via water electrolysis includes a frame 1. From back to front, an unwinding device 2, a coating device 3, a drying device 4, and a winding device 5 are sequentially mounted on the frame. The unwinding device releases the membrane and includes an unwinding roller 21. The coating device coats a catalyst onto the membrane and includes a spray head 31 that sprays the catalyst onto the membrane. The drying device fixes the catalyst onto the membrane in a high-temperature environment and includes a high-temperature chamber 41 with an inlet for drying the product and an outlet for the product. During use, the membrane to be cured enters the high-temperature chamber through the inlet. In the process, the cured membrane electrode exits from the product outlet; the winding device is a device for winding the cured catalyst membrane electrode, which includes a winding roller 51 for winding the membrane electrode; the diaphragm travels from the unwinding device, through the coating device, through the drying device to the winding device to form a running route 6; characterized in that: a forced bonding device 7 is also installed on the device frame, the forced bonding device including a suction fan 71, a suction pipe 72 and a suction roller 73, the suction fan is connected to the suction roller by the suction pipe, the suction roller has suction micropores 731 on its outer periphery, the suction roller is installed between the coating device and the drying device and contacts the running route opposite the side with the catalyst.

[0014] For example, the suction roller has a core in the middle, the core is a hollow structure, and the suction pipe is connected to the core by a movable joint.

[0015] The above-mentioned features of this invention allow the catalyst to be forcibly inserted into the membrane, for example, into the texture or gaps of the membrane, which makes the catalyst and the membrane adhere more firmly and achieves the purpose of this invention.

[0016] Furthermore, the outer periphery of the suction roller also has a diamond mesh 74.

[0017] Due to the above-mentioned design, this invention reduces the possibility of catalyst adsorbing into the suction micropores of the suction roller, which could lead to blockage of the suction micropores. The diamond mesh on the surface of the suction roller can effectively prevent impurities from being sucked in, and it is also easy to disassemble and clean.

[0018] Furthermore, there is a wind deflector 75 on the side of the suction roller, which blocks the suction roller from contacting the suction micro-holes on the suction roller outside the running path. There is also a sealing strip 76 around the wind deflector and between the suction roller.

[0019] Due to the above-mentioned design, this invention also has the ability to more effectively utilize the suction fan.

[0020] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A membrane electrode assembly (MEA) for hydrogen production via water electrolysis, comprising a frame on which an unwinding device, a coating device, a drying device, and a winding device are sequentially mounted from back to front. The unwinding device releases the membrane and includes an unwinding roller for releasing the membrane. The coating device coats a catalyst onto the membrane and includes a spray head that sprays the catalyst onto the membrane. The drying device fixes the catalyst onto the membrane in a high-temperature environment and includes a high-temperature chamber with an inlet for drying the product and an outlet for the product. During use, the membrane to be cured enters the high-temperature chamber through the inlet, and the cured MEA exits through the outlet. The winding device coils the cured MEA and includes a winding roller for winding the MEA. The membrane travels from the unwinding device, through the coating device, through the drying device, to the winding device, forming a path. Its characteristic is that: A forced bonding device is also installed on the device frame. The forced bonding device includes a suction fan, a suction pipe, and a suction roller. The suction fan is connected to the suction roller by the suction pipe. The suction roller has suction micropores on its outer periphery. The suction roller is installed between the coating device and the drying device and contacts the running path opposite the side with the catalyst.

2. The membrane electrode preparation apparatus for hydrogen production by water electrolysis according to claim 1, characterized in that: The suction roller is also surrounded by a diamond mesh.

3. The membrane electrode preparation apparatus for hydrogen production by water electrolysis according to claim 1 or 2, characterized in that: There is also a wind deflector on the side of the suction roller, which prevents the suction roller from contacting the suction micro-holes on the suction roller outside the running path. There is also a sealing strip around the wind deflector and between the suction roller and the suction roller.

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