Hydrogen purification device

Abstract

The utility model discloses a hydrogen purification device, which relates to the technical field of hydrogen purification and comprises a separation tank, the inner wall of the separation tank is provided with a primary separation component, a double-layer separation component, a cleaning component and a discharge component, and the primary separation component, the double-layer separation component, the cleaning component and the discharge component are arranged on the inner wall of the separation tank respectively. Through the arrangement of the primary separation assembly, when mixed gas raw materials enter the inner wall of the separation tank, the gas raw materials in the separation tank are primarily separated through an arranged first separation membrane, so that hydrogen raw materials flow upwards through the first separation membrane, and other mixed gas raw materials are isolated by the first separation membrane; the first separation membrane made of polyimide has good chemical stability and can resist erosion of various chemical substances, so that the first separation membrane can still keep good performance in a hydrogen environment containing foreign gas, and the service life of the whole first separation membrane is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen purification, in particular to a hydrogen purification device. Background Art

[0002] In the field of traditional hydrogen purification equipment, when using separation membrane technology to separate the purity of hydrogen raw materials, there are many difficult problems, and hydrogen raw materials often contain a variety of impurities.

[0003] During long-term operation, the separation membrane is continuously exposed to such a complex raw gas environment. Impurity gases may react chemically with the separation membrane material, changing its original physical and chemical properties, thus seriously affecting the separation performance and service life of the separation membrane. At the same time, due to the use of a single separation membrane, its own separation mechanism and selectivity have limitations. The separation differences between different impurity gases and hydrogen molecules in a single membrane material are not absolutely ideal. Due to the lack of other complementary separation methods, the performance of the entire hydrogen purification system will be greatly reduced, further limiting the application and development of traditional hydrogen purification devices in the preparation of efficient and high-purity hydrogen. Therefore, a hydrogen purification device is urgently needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a hydrogen purification device to solve the problems of short service life and low purification purity of the traditional hydrogen purification device mentioned in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a hydrogen purification device, comprising a separation tank, the inner wall of which is provided with a primary separation component, the inner wall of which is provided with a double-layer separation component, the inner wall of which is provided with a cleaning component, the inner wall of which is provided with a discharge component, and the bottom surface of which is provided with a support component;

[0006] The primary separation component includes a fixed disk, which is fixedly connected to the inner wall of the separation tank. The inner wall of the fixed disk is provided with a mounting groove, the inner wall of the mounting groove is fixedly connected to the mounting disk, and the inner wall of the mounting disk is fixedly connected to the first separation membrane, which is made of polyimide.

[0007] Preferably, the double-layer separation component includes a fixing ring, which is fixedly connected to the top surface of the fixing plate, a second fixing groove is opened at the upper end of the fixing ring, a first fixing groove is opened at the upper end of the fixing ring, the inner wall of the separation tank is fixedly connected with a mounting plate, the lower end of the mounting plate is fixedly connected with a connecting ring, the connecting ring and the fixing ring are symmetrically arranged, a second connecting groove is opened at the lower end of the connecting ring, a first connecting groove is opened at the lower end of the connecting ring, the second connecting groove and the first connecting groove are concentrically arranged, the second connecting groove is arranged on the outside of the first connecting groove, the inner wall of the first connecting groove and the inner wall of the first fixed groove are fixedly connected with the same second separation membrane, the inner wall of the second connecting groove and the inner wall of the second fixed groove are fixedly connected with the same third separation membrane, a plurality of exhaust holes are opened at the upper end of the mounting plate, the second separation membrane is made of ceramic material, and the third separation membrane is made of metal material.

[0008] In the present technical solution, a double-layer separation component is used so that when the hydrogen raw material that has undergone the initial separation passes through the first separation membrane into the interior of the second separation membrane, the second separation membrane made of ceramic material has high mechanical strength, so that the hydrogen raw material that has undergone the initial filtration inside the second separation membrane can withstand a higher pressure when passing through the second separation membrane, thereby improving the durability of the second separation membrane. Secondly, by setting up a third separation membrane made of metal material, it is convenient to adopt a higher selectivity for the hydrogen raw material passing through the second separation membrane, thereby effectively blocking other impurity gases remaining in the hydrogen raw material. By setting up the first separation membrane, the second separation membrane and the third separation membrane with different characteristics to cooperate with each other, high-purity hydrogen can be separated while ensuring a long service life.

[0009] Preferably, the cleaning assembly includes a gathering box, which is fixedly connected to the top surface of the mounting plate, the inner wall of the gathering box is fixedly connected with a liquid inlet pipe, the surface of the liquid inlet pipe is fixedly connected to the inner wall of the separation tank, and the top surface of the liquid inlet pipe is detachably connected with a plug by bolts.

[0010] In the present technical solution, a cleaning component is set up so that when the inner wall of the second separation membrane is adhered to impurities filtered out after long-term use, the upper end of the liquid inlet pipe is connected to a water source or a cleaning agent with chemical properties through the set liquid inlet pipe. The liquid then enters through the liquid inlet pipe and passes through multiple liquid inlet holes to flush the inner wall of the second separation membrane, thereby allowing the second separation membrane to maintain a good filtering effect.

[0011] Preferably, the discharge assembly comprises a U-shaped tube, the U-shaped tube is fixedly connected to the inner wall of the separation tank, a fixing frame is fixedly connected to the surface of the U-shaped tube, and a support plate is fixedly connected to the side wall of the fixing frame.

[0012] In the technical solution, one end of the U-shaped tube is connected to the gas inlet of other gas separation equipment through the provided discharge assembly, so as to facilitate the residual gas separation filtration of the gas separated by the first separation membrane.

[0013] Preferably, the support assembly includes a fixed plate, which is arranged on the bottom surface of the separation tank, the top surface of the fixed plate is fixedly connected to a support frame, the inner wall of the support frame is fixedly connected to the lower end of the separation tank, the top surface of the fixed plate is fixedly connected to the bottom surface of the support plate, and the bottom surface of the fixed plate is fixedly connected to an anti-slip pad.

[0014] In this technical solution, the support assembly is provided to facilitate fixing the separation tank and prevent the separation tank from tipping over during operation.

[0015] Preferably, a plurality of liquid inlet holes are provided on the top surface of the mounting plate, the plurality of liquid inlet holes are arranged obliquely, and the sizes of the plurality of liquid inlet holes are matched.

[0016] In the technical solution, the inclined liquid inlet hole is provided so that the liquid passing through the liquid inlet hole can be sprayed onto the inner wall of the second separation membrane better.

[0017] Preferably, a drain pipe is fixedly connected to the inner wall of the U-shaped tube, and a sealing head is detachably connected to the lower end of the drain pipe via bolts.

[0018] In the technical solution, the provided drain pipe cooperates with the sealing head so that the liquid accumulated inside the U-shaped tube can be easily discharged by removing the sealing head.

[0019] Preferably, a sealing ring is fixedly connected to the surface of the U-shaped tube, the surface of the sealing ring is fixedly connected to the inner wall of the separation tank, and the sealing ring is made of polytetrafluoroethylene.

[0020] In the technical solution, the sealing ring is provided to prevent the liquid from leaking out of the bottom surface of the separation tank, thereby improving the sealing performance of the connection between the surface of the U-shaped tube and the inner wall of the separation tank.

[0021] Preferably, an anti-skid pad is fixedly connected to the inner wall of the fixing plate, and the anti-skid pad is made of rubber.

[0022] In the technical solution, the anti-skid pad made of rubber material makes it easy to increase the friction between the bottom surface of the fixed plate and the ground.

[0023] Preferably, an air inlet pipe is fixedly connected to the inner wall of the separation tank, and a U-shaped plate is fixedly connected to the lower end of the fixed plate.

[0024] In the technical solution, the U-shaped plate is provided to shield the water droplets carried in the gas when the gas raw material enters the interior of the separation tank, so that the water droplets flow downward under the influence of gravity.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] By setting up the primary separation component, when the mixed gas raw material enters the inner wall of the separation tank, the gas raw material inside the separation tank is initially separated by the first separation membrane, so that the hydrogen raw material flows upward through the first separation membrane, and other mixed gas raw materials are isolated by the first separation membrane. The first separation membrane made of polyimide material has good chemical stability and can withstand corrosion from a variety of chemical substances, so that it can still maintain good performance in a hydrogen environment containing impurity gases, thereby improving the overall service life of the first separation membrane. By setting up the double-layer separation component, when the hydrogen raw material that has been initially separated passes through The first separation membrane enters the interior of the second separation membrane. The second separation membrane made of ceramic material has high mechanical strength, so that the hydrogen raw material that has been initially filtered inside the second separation membrane can withstand higher pressure when passing through the second separation membrane, thereby improving the durability of the second separation membrane. Secondly, the third separation membrane made of metal material is set up to facilitate higher selectivity for the hydrogen raw material passing through the second separation membrane, thereby effectively blocking other impurity gases remaining in the hydrogen raw material. By setting the first separation membrane, the second separation membrane and the third separation membrane with different characteristics to cooperate with each other, high-purity hydrogen can be separated while ensuring a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0028] Figure 2 This is a schematic cross-sectional structural diagram of the discharge assembly of the utility model;

[0029] Figure 3 This is a schematic diagram of the support assembly structure of the utility model;

[0030] Figure 4 This is a schematic diagram of the cross-sectional structure of the separation tank of the utility model;

[0031] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0032] Figure 6 for Figure 4 Enlarged structural diagram at B in the middle.

[0033] In the figure: 1, separation tank; 2, primary separation assembly; 201, fixed plate; 202, mounting groove; 203, mounting plate; 204, first separation membrane; 3, double-layer separation assembly; 301, fixed ring; 302, second fixed groove; 303, first fixed groove; 304, mounting plate; 305, connecting ring; 306, second connecting groove; 307, first connecting groove; 308, second separation membrane; 309, third separation membrane ; 310, exhaust hole; 311, liquid inlet hole; 4, cleaning assembly; 401, gathering box; 402, liquid inlet pipe; 403, plug; 5, discharge assembly; 501, U-shaped pipe; 502, drain pipe; 503, sealing head; 504, sealing ring; 505, support plate; 506, fixing frame; 6, support assembly; 601, fixing plate; 602, support frame; 603, anti-slip pad; 7, air inlet pipe; 8, U-shaped plate. DETAILED DESCRIPTION

[0034] 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.

[0035] See also Figure 1-6The utility model provides a hydrogen purification device, including a separation tank 1, the inner wall of the separation tank 1 is provided with a primary separation component 2, the inner wall of the separation tank 1 is provided with a double-layer separation component 3, the inner wall of the separation tank 1 is provided with a cleaning component 4, the inner wall of the separation tank 1 is provided with a discharge component 5, the bottom surface of the separation tank 1 is provided with a support component 6, the primary separation component 2 includes a fixed plate 201, the fixed plate 201 is fixedly connected to the inner wall of the separation tank 1, the inner wall of the fixed plate 201 is provided with a mounting groove 202, and the inner wall of the mounting groove 202 is fixedly connected with The mounting plate 203 has a first separation membrane 204 fixedly connected to its inner wall. The first separation membrane 204 is made of polyimide. Through the initial separation assembly 2, when the mixed raw material release device connected to the front end of the separation tank 1 releases the mixed gas into the interior of the separation tank 1, the mixed gas is pushed to flow by the pressure of the gas released by the front end release device. When the mixed gas raw material enters the interior of the separation tank 1 and passes through the first separation membrane 204, the gas raw material inside the separation tank 1 is initially separated by the first separation membrane 204. Separation and filtration, the filtered hydrogen raw material flows upward through the first separation membrane 204, and other mixed gas raw materials are isolated by the first separation membrane 204. The first separation membrane 204 is made of polyimide. Polyimide is a kind of aromatic heterocyclic polymer material with an imide structure in the main chain. It is formed by the condensation of aromatic dianhydride and diamine monomers. It has excellent gas selectivity, mechanical properties, thermal stability, chemical stability, hydrolysis resistance and corrosion resistance. This allows the first separation membrane 204 to maintain good performance and stability in different industrial environments and operating conditions. The mixed gas contacts the first separation membrane 204 under the drive of pressure difference. Hydrogen molecules are relatively small in size and have relatively strong solubility and diffusion capabilities in the membrane material, making it easier to pass through the separation membrane, while other gas molecules such as carbon dioxide, methane, nitrogen, etc. are more difficult to pass through, thereby achieving separation of hydrogen from other gases. The first separation membrane 204 made of polyimide material is set, so that when it is exposed to a hydrogen environment containing impurity gases, it can still maintain good performance, thereby improving the overall service life of the first separation membrane 204.

[0036] Furthermore, the double-layer separation component 3 includes a fixing ring 301, which is fixedly connected to the top surface of the fixing plate 201, a second fixing groove 302 is provided at the upper end of the fixing ring 301, a first fixing groove 303 is provided at the upper end of the fixing ring 301, a mounting plate 304 is fixedly connected to the inner wall of the separation tank 1, a connecting ring 305 is fixedly connected to the lower end of the mounting plate 304, the connecting ring 305 is symmetrically arranged with the fixing ring 301, a second connecting groove 306 is provided at the lower end of the connecting ring 305, a first connecting groove 307 is provided at the lower end of the connecting ring 305, and the second connecting groove 306 and the first connecting groove 307 are connected. The second connection groove 306 is arranged concentrically, and is arranged outside the first connection groove 307. The inner wall of the first connection groove 307 and the inner wall of the first fixed groove 303 are fixedly connected with the same second separation membrane 308. The inner wall of the second connection groove 306 and the inner wall of the second fixed groove 302 are fixedly connected with the same third separation membrane 309. A plurality of exhaust holes 310 are opened at the upper end of the mounting plate 304. The second separation membrane 308 is made of ceramic material, and the third separation membrane 309 is made of metal material. By setting the double-layer separation component 3, when the hydrogen raw material after the initial separation passes through the first separation membrane 204 and enters the second separation membrane Inside the second separation membrane 308, the first separation membrane 204 is made of ceramic material. The first separation membrane 204 made of ceramic material uses inorganic ceramic materials such as aluminum oxide, zirconium oxide, titanium oxide and silicon oxide as a support body, and has good chemical stability and thermal stability. The second separation membrane 308 made of ceramic material has high mechanical strength, so that the hydrogen raw material that has been filtered for the first time inside the second separation membrane 308 can withstand a higher pressure when passing through the second separation membrane 308, thereby improving the durability of the second separation membrane 308. Secondly, the third separation membrane 309 made of metal is provided, so that it is convenient to take a higher pressure on the hydrogen raw material passing through the second separation membrane 308. selectivity, thereby effectively blocking other impurity gases remaining in the hydrogen raw material. Secondly, the second separation membrane 308 made of ceramic material is not easy to break or deform during the hydrogen separation process, can adapt to different operating conditions, has a narrow pore size distribution, and can be accurately controlled within the nanometer range. It can achieve efficient screening and separation based on the size difference between hydrogen molecules and impurity gas molecules, thereby improving the separation purity of hydrogen. By setting the first separation membrane 204, the second separation membrane 308 and the third separation membrane 309 with different characteristics to cooperate with each other, high-purity hydrogen can be separated while ensuring a long service life.

[0037] Furthermore, the cleaning component 4 includes a gathering box 401, which is fixedly connected to the top surface of the mounting plate 304. The inner wall of the gathering box 401 is fixedly connected with a liquid inlet pipe 402. The surface of the liquid inlet pipe 402 is fixedly connected to the inner wall of the separation tank 1. The top surface of the liquid inlet pipe 402 is detachably connected with a plug 403 by bolts. Through the setting of the cleaning component 4, when the inner wall of the second separation membrane 308 is attached with filtered impurities after long-term use, the upper end of the liquid inlet pipe 402 is connected to a water source or a cleaning agent with chemical properties through the set liquid inlet pipe 402. After the liquid enters with the liquid inlet pipe 402, it can pass through a plurality of liquid inlet holes 311 to rinse the inner wall of the second separation membrane 308, thereby allowing the second separation membrane 308 to maintain a good filtering effect.

[0038] Furthermore, the discharge component 5 includes a U-shaped tube 501, which is fixedly connected to the inner wall of the separation tank 1. A fixing frame 506 is fixedly connected to the surface of the U-shaped tube 501, and a support plate 505 is fixedly connected to the side wall of the fixing frame 506. Through the set discharge component 5, one end of the U-shaped tube 501 is connected to the air inlet of other gas separation equipment, thereby facilitating the separation and filtration of the remaining gas from the gas filtered and separated by the first separation membrane 204.

[0039] Furthermore, the support assembly 6 includes a fixed plate 601, which is arranged on the bottom surface of the separation tank 1, and the top surface of the fixed plate 601 is fixedly connected to a support frame 602, the inner wall of the support frame 602 is fixedly connected to the lower end of the separation tank 1, the top surface of the fixed plate 601 is fixedly connected to the bottom surface of the support plate 505, and the bottom surface of the fixed plate 601 is fixedly connected to an anti-slip pad 603. The support assembly 6 is set up to facilitate the fixing of the separation tank 1 to prevent the separation tank 1 from tipping over during operation.

[0040] Furthermore, a plurality of liquid inlet holes 311 are provided on the top surface of the mounting plate 304. The plurality of liquid inlet holes 311 are inclined and have matching sizes. The inclined liquid inlet holes 311 facilitate the liquid passing through the liquid inlet holes 311 to be better sprayed onto the inner wall of the second separation membrane 308.

[0041] Furthermore, a drain pipe 502 is fixedly connected to the inner wall of the U-shaped tube 501, and a sealing head 503 is detachably connected to the lower end of the drain pipe 502 via bolts. The drain pipe 502 and the sealing head 503 cooperate with each other, so that the liquid accumulated inside the U-shaped tube 501 can be easily discharged by removing the sealing head 503.

[0042] Furthermore, a sealing ring 504 is fixedly connected to the surface of the U-shaped tube 501, and the surface of the sealing ring 504 is fixedly connected to the inner wall of the separation tank 1. The sealing ring 504 is made of polytetrafluoroethylene. The sealing ring 504 is set to prevent liquid from leaking from the bottom surface of the separation tank 1, thereby improving the sealing performance of the connection between the surface of the U-shaped tube 501 and the inner wall of the separation tank 1.

[0043] Furthermore, an anti-skid pad 603 is fixedly connected to the inner wall of the fixing plate 601 . The anti-skid pad 603 is made of rubber. The anti-skid pad 603 made of rubber can improve the friction between the bottom surface of the fixing plate 601 and the ground.

[0044] Furthermore, an air inlet pipe 7 is fixedly connected to the inner wall of the separation tank 1, and a U-shaped plate 8 is fixedly connected to the lower end of the fixed disk 201. The U-shaped plate 8 is arranged to facilitate shielding of water droplets carried in the gas when the gas raw material enters the interior of the separation tank 1, so that the water droplets flow downward under the influence of gravity.

[0045] Working principle: By setting up the primary separation component 2, when the mixed gas raw material enters the inner wall of the separation tank 1, the gas raw material inside the separation tank 1 is initially separated by the first separation membrane 204, so that the hydrogen raw material flows upward through the first separation membrane 204, and other mixed gas raw materials are isolated by the first separation membrane 204. The first separation membrane 204 made of polyimide material has good chemical stability and can withstand corrosion from a variety of chemical substances, thereby maintaining good performance in a hydrogen environment containing impurity gases, thereby improving the overall service life of the first separation membrane 204. By setting up the double-layer separation component 3, when the hydrogen raw material that has undergone the initial separation passes through the first separation membrane 204 into the interior of the second separation membrane 308, the second separation membrane 308 made of ceramic material has high mechanical strength, so that the hydrogen raw material that has undergone the initial filtration passes through the second separation membrane 308 inside the second separation membrane 308. The second separation membrane 308 can withstand a higher pressure and improve the durability of the second separation membrane 308. Secondly, the third separation membrane 309 made of metal is provided, so that it is convenient to take a higher selectivity for the hydrogen raw material passing through the second separation membrane 308, thereby effectively blocking other impurity gases remaining in the hydrogen raw material. The first separation membrane 204, the second separation membrane 308 and the third separation membrane 309 with different characteristics are used in coordination with each other, so that high-purity hydrogen can be separated while ensuring a long service life. The cleaning component 4 is provided, so that when the inner wall of the second separation membrane 308 is attached with filtered impurities after long-term use, the upper end of the liquid inlet pipe 402 is connected to a water source or a cleaning agent with chemical properties through the provided liquid inlet pipe 402, and then the liquid enters through the liquid inlet pipe 402 and can be flushed to the inner wall of the second separation membrane 308 through the multiple liquid inlet holes 311, so that the second separation membrane 308 maintains a good filtering effect.

Claims

1. A hydrogen purification device, comprising a separation tank (1), characterized in that: Also includes: A primary separation component (2), arranged inside the separation tank (1), and used for performing primary separation of hydrogen; A double-layer separation component (3) is arranged inside the separation tank (1) and above the primary separation component (2), and is used for performing secondary separation on hydrogen; By providing the primary separation component (2) and the double-layer separation component (3), when the mixed raw material release device connected to the front end of the separation tank (1) releases the mixed gas into the interior of the separation tank (1), the mixed gas is pushed to flow by the pressure of the gas released by the front-end release device, and the flowing gas passes through the primary separation component (2) and the double-layer separation component (3) in turn to filter and separate the mixed gas; A cleaning component (4) is arranged inside the separation tank (1) and above the double-layer separation component (3), and is used to clean the primary separation component (2) and the double-layer separation component (3); A discharge assembly (5), arranged at the bottom of the separation tank (1), and used for discharging the impurity gas after separation; The hydrogen separated by the separation component is allowed to float upward continuously by means of the discharge component (5), and the impurity gas filtered by the primary separation component (2) and the double-layer separation component (3) can be discharged from the set discharge pipe by being squeezed by the pressure after the mixed raw material release device continuously releases the gas raw material; A support assembly (6) is arranged below the separation tank (1) and is used to support and fix the separation tank (1).

2. A hydrogen purification device according to claim 1, characterized in that: The primary separation component (2) comprises a fixed disk (201), the fixed disk (201) being fixedly connected to the inner wall of the separation tank (1), the inner wall of the fixed disk (201) being provided with a mounting groove (202), the inner wall of the mounting groove (202) being fixedly connected to a mounting disk (203), the inner wall of the mounting disk (203) being fixedly connected to a first separation membrane (204), the first separation membrane (204) being made of polyimide.

3. A hydrogen purification device according to claim 1, characterized in that: The double-layer separation assembly (3) comprises a fixing ring (301), the fixing ring (301) being fixedly connected to the top surface of the fixing plate (201), the upper end of the fixing ring (301) being provided with a second fixing groove (302), the upper end of the fixing ring (301) being provided with a first fixing groove (303), the inner wall of the separation tank (1) being fixedly connected to a mounting plate (304), the lower end of the mounting plate (304) being fixedly connected to a connecting ring (305), the connecting ring (305) being symmetrically arranged with the fixing ring (301), and the lower end of the connecting ring (305) being provided with a second connecting groove (306), The lower end of the connecting ring (305) is provided with a first connecting groove (307), the second connecting groove (306) is arranged concentrically with the first connecting groove (307), the second connecting groove (306) is arranged on the outer side of the first connecting groove (307), the inner wall of the first connecting groove (307) and the inner wall of the first fixed groove (303) are fixedly connected with a same second separation membrane (308), the inner wall of the second connecting groove (306) and the inner wall of the second fixed groove (302) are fixedly connected with a same third separation membrane (309), and the upper end of the mounting plate (304) is provided with a plurality of exhaust holes (310).

4. A hydrogen purification device according to claim 1, characterized in that: The cleaning assembly (4) comprises a gathering box (401), the gathering box (401) being fixedly connected to the top surface of the mounting plate (304), the inner wall of the gathering box (401) being fixedly connected to a liquid inlet pipe (402), the surface of the liquid inlet pipe (402) being fixedly connected to the inner wall of the separation tank (1), and the top surface of the liquid inlet pipe (402) being detachably connected to a plug (403) via bolts.

5. A hydrogen purification device according to claim 1, characterized in that: The discharge assembly (5) comprises a U-shaped tube (501), the U-shaped tube (501) being fixedly connected to the inner wall of the separation tank (1), a fixing frame (506) being fixedly connected to the surface of the U-shaped tube (501), and a support plate (505) being fixedly connected to the side wall of the fixing frame (506).

6. A hydrogen purification device according to claim 1, characterized in that: The support assembly (6) comprises a fixing plate (601), the fixing plate (601) being arranged on the bottom surface of the separation tank (1), the top surface of the fixing plate (601) being fixedly connected to a support frame (602), the inner wall of the support frame (602) being fixedly connected to the lower end of the separation tank (1), the top surface of the fixing plate (601) being fixedly connected to the bottom surface of the support plate (505), and the bottom surface of the fixing plate (601) being fixedly connected to an anti-slip pad (603).

7. A hydrogen purification device according to claim 3, characterized in that: The top surface of the mounting plate (304) is provided with a plurality of liquid inlet holes (311) of matching sizes, and each of the liquid inlet holes (311) is arranged at an angle.

8. A hydrogen purification device according to claim 5, characterized in that: The inner wall of the U-shaped tube (501) is fixedly connected to a drainage pipe (502), and the lower end of the drainage pipe (502) is detachably connected to a sealing head (503) via bolts.

9. A hydrogen purification device according to claim 5, characterized in that: A sealing ring (504) is fixedly connected to the surface of the U-shaped tube (501), and a surface of the sealing ring (504) is fixedly connected to the inner wall of the separation tank (1).

10. A hydrogen purification device according to claim 2, characterized in that: An air inlet pipe (7) is fixedly connected to the inner wall of the separation tank (1), and a U-shaped plate (8) is fixedly connected to the lower end of the fixed plate (201).

Images