Ultrahigh-purity hydrogen preparation device

Abstract

The utility model relates to the technical field of hydrogen preparation, and discloses an ultra-high purity hydrogen preparation device which comprises an electrolysis tank, the top end of the electrolysis tank is fixedly connected with a top plate, and a filter basket is placed at the top end of the electrolysis tank. Feed liquid is injected into the filter basket, the feed liquid is preliminarily filtered through the filter basket, the feed liquid is electrolyzed through the electrolysis box, a large amount of heat is generated in the electrolysis process, the temperature of the feed liquid in the electrolysis box is increased, a refrigerant is sucked in through the compressor to be compressed, and the temperature of the compressed refrigerant is rapidly increased; high-temperature and high-pressure gas is fed into the second S heat dissipation plate, the second S heat dissipation plate is subjected to heat dissipation and cooling through the heat dissipation fan and converted into liquid, then the liquid is conveyed into the first S heat dissipation plate through the expansion valve, the expansion valve enables the liquid state to be converted into an aerial fog state, and the temperature is sharply reduced; therefore, cooling and heat absorption of the feed liquid in the electrolysis tank are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen preparation, in particular to a device for preparing ultra-high purity hydrogen. Background Art

[0002] Among the existing hydrogen production technologies, the most commonly used method is to produce hydrogen through the electrolysis of water. However, this method has some obvious disadvantages. A large amount of heat is generated during the electrolysis process, which not only consumes a lot of energy, but may also cause overheating and damage to the equipment. The equipment cost and maintenance cost of this method are relatively high.

[0003] In the prior art, the inventors found that there are at least the following problems in the technology:

[0004] (1) The prior art does not have the function of cooling during the electrolysis process. After each period of operation, the machine needs to be stopped or cooled by a cooling fan, which greatly reduces the operating efficiency.

[0005] (2) Since some impurities may be produced during the electrolysis process, the purity of the obtained hydrogen may not be high enough. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a device for preparing ultra-high purity hydrogen, which has the advantages of being able to reduce the temperature during the electrolysis process and at the same time improve the purity of hydrogen production, thereby solving the problems raised in the background technology.

[0007] The utility model provides the following technical solution: a device for preparing ultra-high purity hydrogen, comprising an electrolytic box, a top plate fixedly connected to the top of the electrolytic box, a filter basket placed on the top of the electrolytic box, an S heat sink 1 arranged inside the electrolytic box, an expansion valve fixedly connected to the top of the S heat sink 1, an S heat sink 2 fixedly connected to the other end of the expansion valve, a compressor fixedly installed at the bottom end of the S heat sink 2, the bottom end of the S heat sink 1 is fixedly connected to the compressor, a hydrogen-water separator fixedly installed on one side of the electrolytic box, a purification box fixedly installed on the side of the hydrogen-water separator away from the electrolytic box, and the electrolytic box, the hydrogen-water separator and the purification box are connected.

[0008] Preferably, a mounting frame is fixedly connected to one side surface of the electrolytic box, a cooling fan is fixedly installed on the side of the mounting frame, and the cooling fan is located on one side of the S cooling plate 2.

[0009] Preferably, a filter plate is fixedly connected to one side of the top plate, a partition is fixedly connected to the lower surface of the top plate, an electric paddle is fixedly mounted on the surface of the filter plate on one side close to the partition, and the partition is located on one side of the S heat sink.

[0010] Preferably, three sets of mounting rails are fixedly connected to the inner wall of the purification box, and outer frames are slidably inserted into the interiors of the three mounting rails. The interiors of the three outer frames are palladium membrane plates, gas catalysts and water absorption plates from bottom to top.

[0011] Preferably, the connecting portion between the hydrogen-water separator and the purification box is located below the palladium membrane plate, and the top of the purification box is fixedly connected with a discharge pipe.

[0012] Preferably, a fixed frame is fixedly connected to one side surface of the purification box, a card plate is slidably inserted in the fixed frame, a spring is fixedly connected to the top end of the card plate, the bottom end of the spring is fixedly connected to the top end of the fixed frame, and the position of the card plate corresponds to that of the outer frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By injecting the feed liquid into the filter basket and performing preliminary filtration on the feed liquid through the filter basket, the electrolytic box is used to electrolyze the feed liquid. A large amount of heat will be generated during the electrolysis process, which will increase the temperature of the feed liquid in the electrolytic box. The refrigerant is sucked in and compressed by the compressor. The compressed refrigerant quickly increases in temperature, and the high-temperature and high-pressure gas is sent to the interior of the S heat sink 2. The heat dissipation fan is used to dissipate and cool the S heat sink 2, and convert it into liquid, and then transport it to the interior of the S heat sink 1 through the expansion valve. The expansion valve converts it from a liquid state to an aerosol state, and the temperature drops sharply, thereby achieving cooling and heat absorption of the feed liquid in the electrolytic box, achieving effective cooling of the feed liquid in the electrolytic box, and at the same time starting the electric paddle to stir the feed liquid in the electrolytic box, so that the temperature control of the feed liquid in the electrolytic box is more uniform, effectively avoiding overheating and damage to the equipment, and increasing the service life of the device.

[0015] 2. By providing a palladium membrane plate, a gas catalyst and a water absorption plate, the feed liquid after electrolysis is input into the interior of the hydrogen-water separator for hydrogen-water separation. After separation, the hydrogen is transported to the interior of the purification box, and the hydrogen passes through the palladium membrane plate, the gas catalyst and the water absorption plate in sequence, which can adsorb and remove impurity gases in the hydrogen, thereby ensuring that the hydrogen has good purity. At the same time, the water absorption plate can further remove water vapor mixed in the hydrogen. Manually pulling the card plate can move the bottom end of the card plate away from the side of the outer frame. After loosening the card plate, the tension of the spring acts on the card plate to drive the card plate to move inside the fixed frame, so that the bottom end of the card plate can be located on one side of the outer frame, which is convenient for quick disassembly and assembly of the outer frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0017] Figure 2This is an enlarged structural diagram of part A of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the electrolytic box of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the purification box of the utility model.

[0020] In the figure: 1. electrolytic box; 2. hydrogen-water separator; 3. purification box; 4. filter basket; 5. top plate; 6. filter plate; 7. electric paddle; 8. partition; 9. S heat sink one; 10. expansion valve; 11. compressor; 12. S heat sink two; 13. mounting frame; 14. cooling fan; 15. discharge pipe; 16. mounting rail; 17. outer frame; 18. palladium membrane plate; 19. gas catalyst; 20. water absorption plate; 21. fixing frame; 22. card plate; 23. spring. DETAILED DESCRIPTION

[0021] 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 in 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.

[0022] Reference Figure 1-4 A device for preparing ultra-high purity hydrogen comprises an electrolytic box 1, a top plate 5 is fixedly connected to the top of the electrolytic box 1, a filter basket 4 is placed on the top of the electrolytic box 1, an S heat sink 9 is arranged inside the electrolytic box 1, an expansion valve 10 is fixedly connected to the top of the S heat sink 9, an S heat sink 12 is fixedly connected to the other end of the expansion valve 10, a compressor 11 is fixedly installed at the bottom end of the S heat sink 12, the bottom end of the S heat sink 9 is fixedly connected to the compressor 11, a hydrogen-water separator 2 is fixedly installed on one side of the electrolytic box 1, a purification box 3 is fixedly installed on the side of the hydrogen-water separator 2 away from the electrolytic box 1, the electrolytic box 1, the hydrogen-water separator 2 and the purification box 3 are connected, and one side of the electrolytic box 1 A mounting bracket 13 is fixedly connected to the surface, and a cooling fan 14 is fixedly installed on the side of the mounting bracket 13. The cooling fan 14 is located on one side of the S heat sink 12. The refrigerant is sucked in and compressed by the compressor 11. The compressed refrigerant quickly increases in temperature, and the high-temperature and high-pressure gas is sent to the inside of the S heat sink 12. The cooling fan 14 is used to dissipate heat and cool the S heat sink 12, and convert it into liquid, which is then transported to the inside of the S heat sink 19 through the expansion valve 10. The expansion valve 10 converts it from a liquid state to an aerosol state, and the temperature drops sharply, thereby achieving cooling and heat absorption of the feed liquid in the electrolytic box 1, thereby achieving effective cooling of the feed liquid in the electrolytic box 1.

[0023] Among them, a filter plate 6 is fixedly connected to one side of the top plate 5, a partition 8 is fixedly connected to the lower surface of the top plate 5, an electric paddle 7 is fixedly installed on the surface of the filter plate 6 close to the partition 8, the partition 8 is located on one side of the S heat sink 9, and the electric paddle 7 stirs the feed liquid in the electrolytic box 1, so that the temperature control of the feed liquid in the electrolytic box 1 is more uniform.

[0024] Among them, the inner wall of the purification box 3 is fixedly connected with three groups of mounting rails 16, and the inner parts of the three mounting rails 16 are slidably plugged with outer frames 17. The inner parts of the three outer frames 17 are palladium membrane plates 18, gas catalysts 19 and water absorption plates 20 from bottom to top. The feed liquid after electrolysis is input into the interior of the hydrogen-water separator 2 for hydrogen-water separation. After separation, the hydrogen is transported to the interior of the purification box 3, and the hydrogen passes through the palladium membrane plates 18, gas catalysts 19 and water absorption plates 20 in sequence, which can adsorb and remove impurity gases in the hydrogen, thereby ensuring that the hydrogen has good purity. At the same time, the water absorption plates 20 can further remove mixed water vapor in the hydrogen. The palladium membrane plate 18 is made of ceramic, which can effectively ensure the adhesion and stability of the palladium membrane. At the same time, the surface of the palladium membrane plate 18 needs to be pre-treated (such as polishing, cleaning, and chemical treatment) before production, which can improve the adhesion of the palladium membrane and reduce the risk of falling off. The palladium membrane is attached by electrochemical deposition to ensure the adhesion and stability of the palladium membrane on the palladium membrane plate 18.

[0025] The connecting part between the hydrogen-water separator 2 and the purification box 3 is located below the palladium membrane plate 18 , and the top of the purification box 3 is fixedly connected with a discharge pipe 15 .

[0026] Among them, a fixed frame 21 is fixedly connected to the surface of one side of the purification box 3, and a card plate 22 is slidably inserted in the fixed frame 21. A spring 23 is fixedly connected to the top of the card plate 22, and the bottom end of the spring 23 is fixedly connected to the top of the fixed frame 21. The position of the card plate 22 corresponds to that of the outer frame 17. By manually pulling the card plate 22, the bottom end of the card plate 22 can be moved away from the side of the outer frame 17. After releasing the card plate 22, the pulling force of the spring 23 acts on the card plate 22 to drive the card plate 22 to move inside the fixed frame 21, so that the bottom end of the card plate 22 can be located on one side of the outer frame 17, which is convenient for quick disassembly and assembly of the outer frame 17.

[0027] Working principle: when the device is in use, the feed liquid is injected into the filter basket 4, and the feed liquid is preliminarily filtered through the filter basket 4, and the feed liquid is electrolyzed by the electrolytic box 1. A large amount of heat will be generated during the electrolysis process, which will increase the temperature of the feed liquid in the electrolytic box 1. The refrigerant is sucked in and compressed by the compressor 11. The compressed refrigerant quickly increases in temperature, and the high-temperature and high-pressure gas is sent to the inside of the S heat sink 12, and the heat dissipation fan 14 is used to dissipate heat and cool the S heat sink 12, and convert it into liquid, and then transported to the inside of the S heat sink 9 through the expansion valve 10. The expansion valve 10 converts it from a liquid state to an aerosol state, and the temperature drops sharply, thereby achieving cooling and heat absorption of the feed liquid in the electrolytic box 1, achieving effective cooling of the feed liquid in the electrolytic box 1, and at the same time starting the electric paddle 7 to cool the electrolytic The feed liquid in the box 1 is stirred to make the temperature control of the feed liquid in the electrolytic box 1 more uniform, effectively avoiding overheating and damage to the equipment. The feed liquid after electrolysis is input into the hydrogen-water separator 2 for hydrogen-water separation. After separation, the hydrogen is transported to the interior of the purification box 3, and the hydrogen passes through the palladium membrane plate 18, the gas catalyst 19 and the water absorption plate 20 in sequence, which can adsorb and remove impurity gases in the hydrogen, thereby ensuring that the hydrogen has good purity. At the same time, the water absorption plate 20 can further remove water vapor mixed in the hydrogen. Manually pulling the card plate 22 can move the bottom end of the card plate 22 away from the side of the outer frame 17. After loosening the card plate 22, the tension of the spring 23 acts on the card plate 22 to drive the card plate 22 to move inside the fixed frame 21, so that the bottom end of the card plate 22 can be located on one side of the outer frame 17, which is convenient for quick disassembly and assembly of the outer frame 17.

[0028] In the description, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected, or 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 utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-high purity hydrogen production device, characterized in that: The invention comprises an electrolytic box (1), wherein the top of the electrolytic box (1) is fixedly connected to a top plate (5), a filter basket (4) is placed on the top of the electrolytic box (1), an S heat sink (9) is arranged inside the electrolytic box (1), the top of the S heat sink (9) is fixedly connected to an expansion valve (10), the other end of the expansion valve (10) is fixedly connected to an S heat sink (12), a compressor (11) is fixedly installed at the bottom of the S heat sink (12), the bottom of the S heat sink (9) is fixedly connected to the compressor (11), a hydrogen-water separator (2) is fixedly installed on one side of the electrolytic box (1), a purification box (3) is fixedly installed on the side of the hydrogen-water separator (2) away from the electrolytic box (1), and the electrolytic box (1), the hydrogen-water separator (2) and the purification box (3) are connected.

2. The device for producing ultra-high purity hydrogen according to claim 1, characterized in that: A mounting frame (13) is fixedly connected to a surface of one side of the electrolytic box (1), a cooling fan (14) is fixedly mounted on the side of the mounting frame (13), and the cooling fan (14) is located on one side of the S cooling plate 2 (12).

3. The device for producing ultra-high purity hydrogen according to claim 1, characterized in that: A filter plate (6) is fixedly connected to one side of the top plate (5), a partition plate (8) is fixedly connected to the lower surface of the top plate (5), an electric paddle (7) is fixedly mounted on the surface of the filter plate (6) on one side close to the partition plate (8), and the partition plate (8) is located on one side of the S heat sink plate (9).

4. The device for producing ultra-high purity hydrogen according to claim 1, characterized in that: The inner wall of the purification box (3) is fixedly connected with three sets of mounting rails (16), and the interiors of the three mounting rails (16) are slidably connected with outer frames (17). The interiors of the three outer frames (17) are, from bottom to top, palladium membrane plates (18), gas catalysts (19) and water absorption plates (20).

5. The ultra-high purity hydrogen production device according to claim 1, characterized in that: The connecting portion between the hydrogen-water separator (2) and the purification box (3) is located below the palladium membrane plate (18), and the top of the purification box (3) is fixedly connected with a discharge pipe (15).

6. The device for producing ultra-high purity hydrogen according to claim 4, characterized in that: A fixed frame (21) is fixedly connected to one side surface of the purification box (3), a card plate (22) is slidably inserted in the fixed frame (21), a spring (23) is fixedly connected to the top end of the card plate (22), the bottom end of the spring (23) is fixedly connected to the top end of the fixed frame (21), and the position of the card plate (22) corresponds to that of the outer frame (17).

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