High-purity hydrogen preparation and hydrogen purity evaluation integrated device

Abstract

The invention discloses a high-purity hydrogen preparation and hydrogen purity evaluation integrated device which comprises a supporting frame, a first universal wheel is connected to the left side of the bottom of the supporting frame, a second universal wheel is connected to the right side of the bottom of the supporting frame, the supporting frame is made of stainless steel, and two cross beam structures are arranged on the upper portion of the supporting frame; a first high-temperature furnace is fixedly connected to the left side of the upper portion of the supporting frame, a palladium membrane tube purifier is connected to the top of the first high-temperature furnace, a gasification tube is connected to the outer wall of the palladium membrane tube purifier, and a second high-temperature furnace is connected to the right side of the upper portion of the supporting frame; the device is reasonable in structural design, high-purity hydrogen capable of being used by a fuel stack can be obtained only through one-time purification, a hydrogen purity test and a stack power generation performance test can be carried out at the same time, and online reduction activation of a catalyst is facilitated.

Description

Technical Field

[0001] This invention relates to the field of hydrogen production equipment technology, and in particular to an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation. Background Technology

[0002] Climate change and air pollution are increasingly attracting global attention. Currently, coal and natural gas are mainly used for power generation, while crude oil refining is primarily used in the transportation sector. The combustion of fossil fuels significantly increases the carbon content in the atmosphere, exacerbating climate change. Hydrogen is considered a key pathway for deep decarbonization in the energy and transportation sectors of various countries. Hydrogen is a versatile energy carrier that can be produced from various renewable energy sources (biomass and water) and non-renewable energy sources (natural gas, coal, and hydrocarbons), offering better efficiency than gasoline in energy-to-move conversion. In addition to its higher efficiency, hydrogen also emits fewer air pollutants compared to traditional fossil fuels. However, the storage, processing, transportation, and production of hydrogen present challenges, particularly compared to the logistics of traditional liquid fuels. Current hydrogen storage systems remain too bulky and heavy, negatively impacting vehicle mileage, and all other storage technologies are energy inefficient. The lifecycle efficiency of chemical hydrides is hampered by the non-onboard regeneration of byproducts. Physical storage, including compression and liquefaction, also requires significant energy.

[0003] Methanol is a good candidate for hydrogen carrier, meeting these requirements. Methanol has a high H / C ratio of 4:1, is liquid at room temperature, and can be converted into hydrogen at lower temperatures compared to most fuels. Methanol power generation is a novel power generation method that uses methanol as fuel, generating heat through combustion, and then converting that heat into electricity using a power generation system. Its working principle is similar to thermal power generation, but methanol combustion produces less carbon dioxide than traditional fuels like coal, resulting in less environmental pollution. Currently, there are two main methods for methanol power generation: direct combustion and combustion after conversion to hydrogen. Direct combustion involves injecting methanol directly into a combustion chamber, mixing it with air, and then igniting it to generate high-temperature, high-pressure heat, which is then converted into electricity via a turbine. This method is simple and easy to implement, but the exhaust gas contains a certain amount of pollutants such as nitrogen oxides and sulfur dioxide. Combustion after conversion to hydrogen involves catalytically converting methanol to produce hydrogen and carbon dioxide, which are then burned in a combustion chamber to generate high-temperature, high-pressure heat, which is then converted into electricity via a turbine. This method is relatively environmentally friendly, but requires additional catalytic conversion equipment, making it more expensive.

[0004] Because the mixed gas produced by methanol steam reforming contains 10³ to 10⁴ ppm CO, in addition to the reforming unit, a separate device is needed to remove the remaining CO. The CO concentration must be at least several tens of parts per million to ensure the hydrogen is usable in fuel cell stacks. Existing methods include using hydrogen to adsorb onto an adsorbent under specific pressure, followed by depressurization desorption to purify the hydrogen. Alternatively, specific catalysts can be used to react with hydrogen, converting impurities and other gases into easily separable products, thus purifying the hydrogen. Generally, these methods have poor selectivity for hydrogen, often requiring multiple processing steps, and the resulting hydrogen purity is low, making it difficult to reach a level suitable for fuel cell stacks. Furthermore, adsorption and catalysis methods are difficult to integrate with equipment, resulting in poor integration and difficulty in achieving online monitoring of hydrogen purity.

[0005] To address this technical challenge, there is an urgent need to design a compact reactor that combines a reforming unit and a CO remover, and to enable real-time monitoring of hydrogen purity to a certain extent. Therefore, we propose an integrated device for high-purity hydrogen production and hydrogen purity evaluation. Summary of the Invention

[0006] The purpose of this invention is to provide an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, so as to overcome the problems of low purity, difficulty in hydrogen purity testing, difficulty in testing the hydrogen production performance of catalysts, difficulty in replacing catalysts, easy entry of unreacted water and methanol into subsequent equipment, affecting hydrogen purity, and easy damage to mass flow meters due to the presence of moisture in the prior art.

[0007] To achieve the above-mentioned technical objectives and effects, the present invention provides the following technical solution:

[0008] An integrated device for high-purity hydrogen preparation and hydrogen purity evaluation includes a support frame. A first universal wheel is connected to the bottom left side of the support frame, and a second universal wheel is connected to the bottom right side of the support frame. The support frame is made of stainless steel. Two crossbeams are provided on the upper part of the support frame. A first high-temperature furnace is fixedly connected to the upper left side of the support frame. A palladium membrane tube purifier is connected to the top of the first high-temperature furnace. A gasification tube is connected to the outer wall of the palladium membrane tube purifier. A second high-temperature furnace is connected to the upper right side of the support frame.

[0009] Preferably, in an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, a reactor is detachably connected to the high-temperature furnace, and a spiral tubular vaporization pipeline structure is provided on the outside of the reactor, with the entire reactor placed inside the high-temperature furnace.

[0010] Preferably, in an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, a water-methanol tank is connected to the center of the bottom of the inner cavity of the support frame, a constant flow plunger pump is connected to the top of the water-methanol tank through a pipeline, a three-way rotary valve is connected to the top output end of the constant flow plunger pump through a pipeline, the upper end of the three-way rotary valve is connected to the reactor through a pipeline, and the right end of the three-way rotary valve is connected to a diverter pipe.

[0011] Preferably, in an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, a nitrogen tank and a hydrogen tank are connected to the bottom right side of the inner cavity of the support frame. A gas mass flow meter is connected to the top of the hydrogen tank via a pipeline. A needle valve is connected to the output end of the gas mass flow meter via a pipeline. A gas mass flow meter is connected to the top of the nitrogen tank via a pipeline. A needle valve is connected to the output end of the gas mass flow meter via a pipeline. The upper ends of the needle valve and the needle valve are connected to a distribution pipe.

[0012] Preferably, in an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, a refrigerator is connected to the bottom left side of the inner cavity of the support frame. A dryer is connected between the refrigerator and the reactor via a pipeline. A gas mass flow meter three is connected to the top of the refrigerator via a pipeline. A three-way rotary valve two is connected to the output end of the gas mass flow meter three via a pipeline. The upper end of the three-way rotary valve two is connected to a palladium membrane tube purifier via a pipeline. A gas mass flow meter four is connected to the left end of the three-way rotary valve two via a pipeline. A glass rotor flow meter is connected to the output end of the gas mass flow meter four. A gas check valve is connected between the gas mass flow meter four and the palladium membrane tube purifier via a pipeline.

[0013] Preferably, in an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, the outer wall of the support frame is provided with a hydrogen outlet one and a hydrogen outlet two, and the glass rotor flowmeter is connected to the hydrogen outlet one through a pipeline.

[0014] Preferably, in an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, the rear side wall of the support frame is connected to a temperature controller one, a temperature controller two, a flow controller one, a flow controller two, a flow controller three, and a flow controller four. The flow controller one is used to control the flow rate of the gas mass flow meter one, the flow controller two is used to control the flow rate of the gas mass flow meter two, the flow controller three is used to control the flow rate of the gas mass flow meter three, and the flow controller four is used to control the flow rate of the gas mass flow meter four.

[0015] Preferably, in an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, both high-temperature furnace one and high-temperature furnace two are resistance heating furnaces, both high-temperature furnace one and high-temperature furnace two are equipped with a side-opening door structure, and the furnace temperatures of high-temperature furnace one and high-temperature furnace two are precisely controlled by temperature controller two and temperature controller one, respectively.

[0016] Preferably, in an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, the gasification tube is arranged in a spiral tube structure.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The present invention has a reasonable structural design and is equipped with a palladium membrane tube purifier, which can purify the hydrogen mixture obtained by methanol reforming, and obtain high-purity hydrogen that can be used in fuel cell stacks with only one purification.

[0019] 2. This invention is equipped with a glass rotor flow meter, which can control the flow rate of hydrogen entering the gas chromatograph and ensure the accuracy of the test;

[0020] 3. The present invention has two hydrogen outlets, which can simultaneously perform hydrogen purity testing and fuel cell stack power generation performance testing.

[0021] 4. The present invention is equipped with a refrigeration unit, which can pre-purify the reformed hydrogen mixture to remove residual moisture and methanol from the mixture.

[0022] 5. This invention is equipped with a hydrogen tank and a nitrogen tank, and the flow rates of the two gases can be controlled, which facilitates online reduction and activation of the catalyst. Attached Figure Description

[0023] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the left-side structure in this invention;

[0027] Figure 4 This is a schematic diagram of the right-side structure in this invention.

[0028] In the diagram: 1. Palladium membrane tube purifier; 2. Vaporization tube; 3. Support frame; 4. High-temperature furnace one; 5. Three-way rotary valve two; 6. Gas check valve; 7. Glass rotor flow meter; 8. Gas mass flow meter four; 9. Gas mass flow meter three; 10. Constant flow plunger pump; 11. Refrigeration unit; 12. Water-methanol tank; 13. Nitrogen tank; 14. Hydrogen tank; 15. Gas mass flow meter one; 16. Gas mass flow meter two; 17. Dryer; 18. Needle valve two; 19. Needle valve one; 20. Three-way rotary valve one; 21. High-temperature furnace two; 22. Reactor; 23. Temperature controller one; 24. Temperature controller two; 25. Flow controller one; 26. Caster two; 27. Caster one; 28. Flow controller two; 29. ​​Flow controller three; 30. Flow controller four; 31. Hydrogen outlet one; 32. Hydrogen outlet two. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-4 As shown, this embodiment is an integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, including a support frame 3. A caster wheel 27 is connected to the bottom left side of the support frame 3, and a caster wheel 26 is connected to the bottom right side of the support frame 3, ensuring that the system can be moved to any desired location. The support frame 3 is made of 304 stainless steel. Two crossbeams are provided on the upper part of the support frame 3. A high-temperature furnace 4 is fixedly connected to the upper left side of the support frame 3. A palladium membrane tube purifier 1 is connected to the top of the high-temperature furnace 4 to further purify the hydrogen mixture generated by reforming to obtain high-purity hydrogen. A vaporization tube 2 is connected to the outer wall of the palladium membrane tube purifier 1. A high-temperature furnace 21 is connected to the upper right side of the support frame 3.

[0031] A reactor 22 is detachably connected to the high-temperature furnace 21. The reactor 22 is equipped with a spiral tubular vaporization pipeline structure on its exterior. The reactor 22 is placed inside the high-temperature furnace 21 to facilitate the replacement of the internal catalyst. The spiral tubular vaporization pipeline structure on the exterior of the reactor 22 can vaporize water and methanol at high temperature, making full use of thermal energy, and send the water and methanol vapor into the reactor 22 to react with the hydrogen production catalyst.

[0032] The bottom center of the inner cavity of the support frame 3 is connected to a water-methanol tank 12 for storing water-methanol samples. The top of the water-methanol tank 12 is connected to a constant flow plunger pump 10 through a pipeline for precisely controlling the flow rate and pressure, and pumping the water-methanol sample into the reactor 22 at the set flow rate. The top output end of the constant flow plunger pump 10 is connected to a three-way rotary valve 20 through a pipeline for switching between the hydrogen / nitrogen pipeline and the water-methanol sample inlet pipeline. The upper end of the three-way rotary valve 20 is connected to the reactor 22 through a pipeline, and the right end of the three-way rotary valve 20 is connected to a diverter pipe.

[0033] The bottom right side of the inner cavity of the support frame 3 is connected to a nitrogen tank 13 and a hydrogen tank 14. The nitrogen tank 13 is used to provide nitrogen for purging, and the hydrogen tank 14 is used to provide hydrogen for catalyst reduction and activation. The top of the hydrogen tank 14 is connected to a gas mass flow meter 15 via a pipeline to control the flow rate of hydrogen. The output end of the gas mass flow meter 15 is connected to a needle valve 19 via a pipeline. The top of the nitrogen tank 13 is connected to a gas mass flow meter 16 via a pipeline to control the flow rate of nitrogen. The output end of the gas mass flow meter 16 is connected to a needle valve 18 via a pipeline. The upper ends of the needle valve 19 and the needle valve 18 are connected to a split pipe to control the opening and closing of the nitrogen gas path and the hydrogen gas path.

[0034] A refrigerator 11 is connected to the bottom left side of the inner cavity of the support frame 3. This refrigerator condenses unreacted methanol and residual moisture to prevent them from entering the subsequent testing system and further improve hydrogen purity. A dryer 17 is connected to the reactor 22 via a pipeline to remove moisture from the gas and prevent damage to the flow meter. A gas mass flow meter 9 is connected to the top of the refrigerator 11 via a pipeline to monitor the flow rate of the reformed gas after the reforming reaction. A three-way rotary valve 5 is connected to the output end of the gas mass flow meter 9 via a pipeline. The upper end of the three-way rotary valve 5 is connected via a pipeline... The three-way rotary valve 5 is connected to the palladium membrane tube purifier 1 via a pipeline. The left end of the three-way rotary valve 5 is connected to a gas mass flow meter 8 via a pipeline. This gas mass flow meter 8 is used to monitor the total flow rate of hydrogen after purification by the palladium membrane tube purifier 1. The output end of the gas mass flow meter 8 is connected to a glass rotor flow meter 7. A gas check valve 6 is connected between the gas mass flow meter 8 and the palladium membrane tube purifier 1 via a pipeline. This is used to prevent gas from flowing back into the palladium membrane tube purifier 1. The three-way rotary valve 5 is used to switch whether the reformed gas after reforming in the reactor 22 passes through the palladium membrane tube purifier 1, which facilitates monitoring and recording the changes in hydrogen purity and flow rate before and after purification.

[0035] The outer wall of the support frame 3 is provided with hydrogen outlet 1 31 and hydrogen outlet 2 32. The glass rotor flow meter 7 is connected to hydrogen outlet 1 31 through a pipeline. The glass rotor flow meter 7 is used to control the flow rate of hydrogen outlet 31, so as to facilitate the stable flow rate detection by gas chromatography. Hydrogen outlet 32 ​​can be connected to a fuel cell stack for power generation.

[0036] Temperature controller 23, temperature controller 24, flow controller 25, flow controller 28, flow controller 29, and flow controller 30 are connected to the rear side wall of the support frame 3. Flow controller 25 is used to control the flow rate of gas mass flow meter 15, flow controller 28 is used to control the flow rate of gas mass flow meter 16, flow controller 29 is used to control the flow rate of gas mass flow meter 9, and flow controller 30 is used to control the flow rate of gas mass flow meter 8.

[0037] Both the high-temperature furnace 4 and the high-temperature furnace 21 are resistance heating furnaces. Both the high-temperature furnace 4 and the high-temperature furnace 21 are designed with side-opening doors, which facilitates the disassembly and replacement of the reactor 22. The furnace temperature of the high-temperature furnace 4 and the high-temperature furnace 21 is precisely controlled by temperature controller 24 and temperature controller 23, respectively. Gradient heating programs can be set, and the maximum temperature can reach 800℃.

[0038] The vaporization tube 2 is arranged in a spiral tube structure, which can maintain the gas temperature and make full use of thermal energy.

[0039] The specific implementation method of this embodiment is as follows:

[0040] When performing catalyst reduction in this device, the required methanol-to-hydrogen catalyst is first loaded into reactor 22. High-temperature furnace 21 is closed, nitrogen cylinder 13 is opened, needle valve 19 is opened, and three-way rotary valve 20 is rotated upward to allow nitrogen to enter the system for purging to remove impurities from the pipeline. High-temperature furnace 4 and high-temperature furnace 21 are then switched on, and the corresponding temperature controllers are used to set the heating program to raise the temperature to the required reduction temperature. Once the temperature reaches 100°C, needle valve 18 in the hydrogen pipeline is opened, and gas mass flow meters 15 and 16 are adjusted to set the nitrogen and hydrogen gas flow ratio. Catalyst reduction begins. After reduction is complete, the high-temperature furnace switch is closed, needle valve 18 in the hydrogen pipeline is closed, and the pipeline is purged with nitrogen to prevent catalyst oxidation. Once the temperature drops to room temperature, the catalyst is fully reduced and activated and ready for use.

[0041] When this device produces hydrogen from methanol, first open nitrogen cylinder 14, open needle valve 19, and rotate three-way rotary valve 20 upwards to allow nitrogen to enter the system for purging, removing impurities from the pipeline. Then, turn on the heating switches of high-temperature furnace 4 and high-temperature furnace 21 to start heating. Add water-methanol to water-methanol storage tank 12, turn on the refrigerator 11, close needle valve 19 in the nitrogen pipeline, and rotate three-way rotary valve 20 downwards. After the reactor 22 and palladium membrane tube purifier 1 reach the set temperature, turn on the constant flow plunger pump 10 to inject the sample into the reactor. At this time, the hydrogen-mixed gas generated in reactor 22 enters the refrigerator through dryer 17 from the lower end of reactor 22. The inlet of refrigeration unit 11, after being cooled to remove moisture and methanol, leaves the refrigeration unit 11 and enters the gas mass flow meter 39. The three-way rotary valve 25 controls whether it passes through the palladium membrane tube purifier 1. After passing through the gas mass flow meter 48, it is discharged through hydrogen outlet 131 and hydrogen outlet 232, which can be used for gas chromatography detection and fuel cell stack. After use, turn off the heating switches of high temperature furnace 14 and high temperature furnace 21, turn off the constant flow plunger pump 10, stop the injection, turn off the refrigeration unit 11, rotate the three-way rotary valve 120 to the top, open the needle valve 19 of the nitrogen line to purge with nitrogen. After the temperature drops below 100℃, turn off the needle valve 19 of the nitrogen line and turn off the main power supply.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated device for high-purity hydrogen preparation and hydrogen purity evaluation, comprising a support frame (3), characterized in that: The bottom left side of the support frame (3) is connected to a universal wheel (27), and the bottom right side of the support frame (3) is connected to a universal wheel (26). The support frame (3) is made of 304 stainless steel. The upper part of the support frame (3) is provided with two crossbeam structures. The upper left side of the support frame (3) is fixedly connected to a high-temperature furnace (4). The top of the high-temperature furnace (4) is connected to a palladium membrane tube purifier (1). The outer wall of the palladium membrane tube purifier (1) is connected to a gasification tube (2). The upper right side of the support frame (3) is connected to a high-temperature furnace (21).

2. The integrated device for high-purity hydrogen preparation and hydrogen purity evaluation according to claim 1, characterized in that: The high-temperature furnace (21) is detachably connected to a reactor (22), and the reactor (22) is provided with a spiral tubular vaporization pipeline structure on the outside. The reactor (22) is placed inside the high-temperature furnace (21).

3. The integrated device for high-purity hydrogen preparation and hydrogen purity evaluation according to claim 2, characterized in that: The bottom center of the inner cavity of the support frame (3) is connected to a water-methanol tank (12). The top of the water-methanol tank (12) is connected to a constant flow plunger pump (10) through a pipeline. The top output end of the constant flow plunger pump (10) is connected to a three-way rotary valve (20) through a pipeline. The upper end of the three-way rotary valve (20) is connected to the reactor (22) through a pipeline. The right end of the three-way rotary valve (20) is connected to a diversion pipe.

4. The integrated device for high-purity hydrogen preparation and hydrogen purity evaluation according to claim 3, characterized in that: The bottom right side of the inner cavity of the support frame (3) is connected to a nitrogen tank (13) and a hydrogen tank (14). The top of the hydrogen tank (14) is connected to a gas mass flow meter (15) through a pipe. The output end of the gas mass flow meter (15) is connected to a needle valve (19) through a pipe. The top of the nitrogen tank (13) is connected to a gas mass flow meter (16) through a pipe. The output end of the gas mass flow meter (16) is connected to a needle valve (18) through a pipe. The upper ends of the needle valve (19) and the needle valve (18) are connected to a common flow divider.

5. The integrated device for high-purity hydrogen preparation and hydrogen purity evaluation according to claim 4, characterized in that: A refrigerator (11) is connected to the bottom left of the inner cavity of the support frame (3). A dryer (17) is connected between the refrigerator (11) and the reactor (22) through a pipeline. A gas mass flow meter (9) is connected to the top of the refrigerator (11) through a pipeline. A three-way rotary valve (5) is connected to the output end of the gas mass flow meter (9) through a pipeline. The upper end of the three-way rotary valve (5) is connected to the palladium membrane tube purifier (1) through a pipeline. A gas mass flow meter (8) is connected to the left end of the three-way rotary valve (5) through a pipeline. A glass rotor flow meter (7) is connected to the output end of the gas mass flow meter (8). A gas check valve (6) is connected between the gas mass flow meter (8) and the palladium membrane tube purifier (1) through a pipeline.

6. The integrated device for high-purity hydrogen preparation and hydrogen purity evaluation according to claim 5, characterized in that: The outer wall of the support frame (3) is provided with hydrogen outlet one (31) and hydrogen outlet two (32), and the glass rotor flowmeter (7) is connected to hydrogen outlet one (31) through a pipeline.

7. The integrated device for high-purity hydrogen preparation and hydrogen purity evaluation according to claim 5, characterized in that: The rear side wall of the support frame (3) is connected to temperature controller one (23), temperature controller two (24), flow controller one (25), flow controller two (28), flow controller three (29) and flow controller four (30). Flow controller one (25) is used to control the flow rate of gas mass flow meter one (15), flow controller two (28) is used to control the flow rate of gas mass flow meter two (16), flow controller three (29) is used to control the flow rate of gas mass flow meter three (9), and flow controller four (30) is used to control the flow rate of gas mass flow meter four (8).

8. The integrated device for high-purity hydrogen preparation and hydrogen purity evaluation according to claim 7, characterized in that: Both the high-temperature furnace one (4) and the high-temperature furnace two (21) are resistance heating furnaces. Both the high-temperature furnace one (4) and the high-temperature furnace two (21) are set with side-opening door structure. The furnace temperature of the high-temperature furnace one (4) and the high-temperature furnace two (21) are precisely controlled by temperature controller two (24) and temperature controller one (23), respectively.

9. The integrated device for high-purity hydrogen preparation and hydrogen purity evaluation according to claim 1, characterized in that: The gasification pipe (2) is arranged in a spiral tube structure.

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