CN217921482U

CN217921482U - Hydrogen production plant

Info

Publication number: CN217921482U
Application number: CN202222000392.4U
Authority: CN
Inventors: 杨伟涛; 马永峰; 黄振宇; 杨奕; 梁万广; 张明杰
Original assignee: Zhongke Hongye Guangdong Hydrogen Energy Technology Co ltd
Current assignee: Zhongke Hongye Guangdong Hydrogen Energy Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-29
Anticipated expiration: 2032-07-29

Abstract

The application belongs to the technical field of heating devices, and provides hydrogen production equipment which comprises a shell, wherein a heat supply cavity is arranged in the shell; the outer shell is provided with a first air inlet and an air outlet which are respectively communicated with the heat supply cavity; the hydrogen production device is arranged in the heat supply cavity; the heat supply device is arranged in the heat supply cavity; the heating device comprises a reaction body and a catalyst body, wherein a first reaction cavity is arranged in the reaction body, a second air inlet, an air exhaust opening and a feed inlet which are respectively communicated with the first reaction cavity are arranged on the reaction body, the second air inlet corresponds to the first air inlet and is communicated with the first air inlet, the air exhaust opening corresponds to the hydrogen production device, external methanol can enter the first reaction cavity through the feed inlet, and the catalyst body is arranged in the first reaction cavity. The catalytic heating device provided by the application can solve the technical problem that the energy consumption of hydrogen production equipment in the process of supplying heat to the hydrogen production device is high in the prior art.

Description

Hydrogen production plant

Technical Field

The application belongs to the technical field of heating devices, and particularly relates to hydrogen production equipment.

Background

With the popularization and development of new energy systems in China, the development of hydrogen fuel cells is faster and faster. The technology for producing hydrogen from methanol is also continuously developed, a reforming chamber for reforming hydrogen production is required for the chemical reaction of the hydrogen production from methanol, a catalyst for generating secondary hydrogen and methanol water are required to be put into the reforming chamber, and the secondary hydrogen can be generated by the chemical reaction of the methanol water and the catalyst at a specific temperature, so that a device for providing heat is required in the hydrogen production process, and the reforming chamber can reach the high-temperature condition for generating the reforming chemical reaction.

Many hydrogen production plants provide reaction temperature for a reforming chamber for producing hydrogen by combustion heating or steam heating, but the above heating methods are respectively provided with a heat supply device and the reforming chamber separately, and then the reforming chamber to be heated is placed at a heat source position of the heat supply device for heat supply during heat supply.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a hydrogen production device, so as to solve the technical problem that the energy consumption of the hydrogen production device in the process of supplying heat to a hydrogen production device is large in the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: there is provided a hydrogen production apparatus comprising: the heat exchanger comprises an outer shell, wherein a heat supply cavity is arranged in the outer shell; the outer shell is provided with a first air inlet and an air outlet which are respectively communicated with the heat supply cavity; the hydrogen production device is arranged in the heat supply cavity; the heat supply device is arranged in the heat supply cavity; the heating device comprises a reaction body and a catalyst body, wherein a first reaction cavity is arranged in the reaction body, a second air inlet, an air exhaust opening and a feed inlet which are respectively communicated with the first reaction cavity are arranged on the reaction body, the second air inlet corresponds to the first air inlet, the air exhaust opening corresponds to the hydrogen production device, external methanol can enter the first reaction cavity through the feed inlet, the catalyst body is arranged in the first reaction cavity and used for catalyzing the methanol in the first reaction cavity and oxygen to generate chemical reaction.

The application provides a hydrogen plant's beneficial effect lies in: compared with the prior art, the hydrogen manufacturing equipment during operation of this application, the outside air gets into first reaction intracavity through first air inlet and second air inlet in proper order, methyl alcohol gets into first reaction intracavity through the feed inlet, mix with the air, and the oxygen in formaldehyde and the air takes place chemical reaction under the catalytic action of catalyst body fast, and produce a large amount of heats, the heat is discharged to the heat supply intracavity along with the air current through the heat extraction mouth, in order to carry out the heat supply to hydrogen manufacturing installation, the air current is discharged through the gas outlet afterwards, through setting up hydrogen manufacturing installation and heating device in the lump in the heat supply intracavity of shell body, the heat that heating device produced can fully heat hydrogen manufacturing installation, effectively improve thermal utilization ratio, be favorable to reducing thermal loss promptly, the heat that heating device produced discharges to the heat supply intracavity can also heat self, in order to accelerate the reaction rate of first reaction intracavity formaldehyde and oxygen, further improve thermal utilization ratio.

In one embodiment, the heat supply device further includes a spoiler, the spoiler is disposed in the first reaction chamber and opposite to the second air inlet, and the spoiler is provided with a plurality of first ventilation holes.

In one embodiment, a flow guide block is arranged on one side of the spoiler close to the second air inlet.

In one embodiment, the heating device further includes a heating element disposed in the first reaction chamber and between the spoiler and the catalyst body, and configured to heat the methanol in the first reaction chamber to gasify the methanol.

In one embodiment, the heating assembly is arranged on one side of the spoiler, which is far away from the second air inlet, and a second vent hole is arranged on the heating assembly and is opposite to the spoiler.

In one embodiment, the heating assembly comprises a heat conducting plate and a heating rod, a liquid supply channel is arranged in the heat conducting plate, the liquid supply channel is communicated with the feeding hole and the first reaction chamber, the heating rod is arranged on the heat conducting plate, and heat in the heating rod can be transferred to the heat conducting plate.

In one embodiment, the heating rod is embedded in the heat-conducting plate.

In one embodiment, the catalyst body is honeycomb-shaped.

In one embodiment, the outer shell comprises an outer layer, an inner layer and a heat insulation layer, wherein the heat insulation layer is clamped between the outer layer and the inner layer.

In one embodiment, the hydrogen production apparatus includes a heavy whole body and a purification body, the heavy whole body is formed with a heating cavity and a second reaction cavity which are isolated from each other, the heating cavity is communicated with the heat supply cavity and the heat exhaust opening, a catalyst is stored in the second reaction cavity, the second reaction cavity is enclosed on the periphery side of the heating cavity, and the purification body is arranged in the heating cavity.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a perspective view of a catalytic heating device provided in an embodiment of the present application;

FIG. 2 is a cross-sectional view of the catalytic heating unit shown in FIG. 1;

FIG. 3 is an exploded view of the catalytic heating unit shown in FIG. 1;

FIG. 4 is an exploded view of the reaction body shown in FIG. 3;

FIG. 5 is a perspective view of the spoiler shown in FIG. 2;

fig. 6 is a perspective view of the heating assembly shown in fig. 2.

Wherein, in the figures, the respective reference numerals:

10. an outer housing; 101. a heat supply chamber; 11. an outer layer; 12. an inner layer; 13. a heat-insulating layer; 14. a first air inlet; 15. an air outlet;

20. a reactant; 201. a first reaction chamber; 21. a second air inlet; 22. a heat exhaust port; 23. a catalyst body; 24. a spoiler; 241. a first vent hole; 242. a flow guide block; 25. a heating assembly; 251. a heat conducting plate; 252. a heating rod; 253. a feed inlet; 254. a liquid inlet; 255. a second vent hole;

30. a hydrogen production unit; 31. a heavy whole body; 311. a second reaction chamber; 32. purifying the body.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation as a limitation of the application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 6 together, a catalytic heating device according to an embodiment of the present application will now be described. The catalytic heating device comprises an outer shell 10, a hydrogen production device 30 and a heat supply device.

A heat supply cavity 101 is arranged in the outer shell 10; a first air inlet 14 and an air outlet 15 which are respectively communicated with the heat supply cavity 101 are arranged on the outer shell 10; the hydrogen production device 30 is arranged in the heat supply cavity 101; the heating device is arranged in the heating cavity 101; heating device includes reaction body 20 and catalyst body 23, be equipped with first reaction chamber 201 in the reaction body 20, be equipped with the second air inlet 21 that communicates first reaction chamber 201 respectively on the reaction body 20, heat extraction mouth 22 and feed inlet 253, second air inlet 21 corresponds the intercommunication with first air inlet 14, heat extraction mouth 22 corresponds the setting with hydrogen plant 30, external methyl alcohol can get into in first reaction chamber 201 through feed inlet 253, catalyst body 23 sets up in first reaction chamber 201, a methyl alcohol and oxygen for catalyzing in the first reaction chamber 201 take place chemical reaction.

For example, as shown in fig. 1 to 6, the outer shell 10 is a cylindrical structure, a heat supply chamber 101 for supplying heat to other reaction devices is formed inside the outer shell 10, and the outer shell 10 is provided with a first air inlet 14 and an air outlet 15 which are respectively communicated with the heat supply chamber 101. The heating device is arranged in the heating cavity 101, the heating device can generate heat, the heating device comprises a reaction body 20 and a catalyst body 23, a first reaction cavity 201 for generating chemical reaction is formed in the reaction body 20, a second air inlet 21 which is respectively communicated with the first reaction cavity 201 is arranged on the reaction body 20, a heat exhaust opening 22 and a feed opening 253, the second air inlet 21 is communicated with a first air inlet 14, the heat exhaust opening 22 is opposite to the hydrogen production device 30, the external methanol can enter the first reaction cavity 201 through the feed opening 253, the methanol and the air are fully mixed for improving the reaction efficiency, the exhausted methanol is in a gasification state or an atomization state, and the catalyst body 23 is arranged in the first reaction cavity 201 and is used for catalyzing the chemical reaction of the methanol and the oxygen which are mixed with each other in the first reaction cavity 201.

Specifically, methanol (CH) ₃ OH) and oxygen (O) ₂ ) Mix and can take place chemical reaction and produce a large amount of heats after contacting with the catalyst again, simultaneously because the air is supplied to first reaction chamber 201 through second air inlet 21 incessantly, so original gas will be discharged from heat extraction port 22 in first reaction chamber 201, the gas of exhaust carries a large amount of heats to provide heat for other reaction unit, simultaneously, reactant 20 also sets up in heat supply chamber 101, the heat that produces in reactant 20 also can be for self heat supply, thereby make the reaction inside reactant 20 more abundant.

The application provides a catalytic heating device, compared with the prior art, the hydrogen manufacturing equipment during operation of this application, outside air passes through first air inlet 14 and second air inlet 21 in proper order and gets into first reaction chamber 201, methyl alcohol gets into in first reaction chamber 201 through feed inlet 253, mix with the air, and the oxygen in formaldehyde and the air takes place chemical reaction under the catalytic action of the catalyst in catalyst body 23 fast, and produce a large amount of heats, the heat is along with the air current through heat extraction port 22 arrange to heat supply chamber 101 in, in order to supply heat to hydrogen manufacturing device 30, the air current discharges through gas outlet 15 afterwards, through setting up hydrogen manufacturing device 30 and heating device in the heat supply chamber 101 of shell 10 in the lump, the heat that heating device produced can fully heat hydrogen manufacturing device 30, effectively improve thermal utilization ratio, be favorable to reducing thermal loss promptly, the heat that heating device produced discharges to heat supply chamber 101 in can also can heat self, in order to accelerate the reaction rate of formaldehyde and oxygen in the first reaction chamber 201, further improve thermal utilization ratio.

In an embodiment of the present application, referring to fig. 2, 4 and 5, the heat supply apparatus further includes a spoiler 24, the spoiler 24 is disposed in the first reaction chamber 201 and opposite to the second air inlet 21, and the spoiler 24 is provided with a plurality of first ventilation holes 241.

Specifically, the spoiler 24 is mainly used for disturbing the gas entering the first reaction chamber 201 from the second air inlet 21, in this embodiment, the spoiler 24 is provided with a plurality of first ventilation holes 241, the first ventilation holes 241 are circumferentially and uniformly distributed on the spoiler 24, when the external gas is blown into the first reaction chamber 201 from the second air inlet 21, the external gas is firstly blown onto the spoiler 24, and then the gas flow is dispersed and respectively passes through the spoiler 24 from the plurality of first ventilation holes 241, so that the gas cannot directly pass through the first reaction chamber 201, and the gas flow is dispersed, thereby the methanol can be fully mixed with the air, and the reaction efficiency of the whole catalytic reaction is improved.

In an embodiment of the present application, referring to fig. 2, 4 and 5, a flow guiding block 242 is disposed on a side of the spoiler 24 close to the second air inlet 21.

Specifically, the flow guide block 242 is convexly disposed on one side of the spoiler 24 close to the second air inlet 21, and the flow guide block 242 is located in the middle of the spoiler 24, the plurality of first air holes 241 are circumferentially distributed on the periphery of the flow guide block 242, meanwhile, the second air inlet 21 is directly opposite to the flow guide block 242, the diameter of the second air inlet 21 is close to that of the flow guide block 242, so that after the external air enters the first reaction chamber 201 from the second air inlet 21, the external air must pass through the first air holes 241 after being guided by the flow guide block 242, wherein the flow guide block 242 is provided with a flow guide surface which is obliquely disposed and faces the first air holes 241, so that the air passes through the first air holes after being guided by the flow guide surface and then faces the inner side wall of the first reaction chamber 201, thereby further dispersing the air flow, and enabling the air to be more sufficiently mixed with the methanol.

In an embodiment of the present application, referring to fig. 2, 4 and 6, the heating apparatus further includes a heating element 25, the heating element 25 is disposed in the first reaction chamber 201 and between the spoiler 24 and the catalyst body 23, and is capable of heating the methanol in the first reaction chamber 201 to gasify the methanol.

Specifically, the heating element 25 has a heating function, the heating element 25 is disposed in the first reaction chamber 201, when the heating element 25 starts the heating function, the temperature of the entire heating element 25 is increased, so that the temperature of the methanol liquid is increased, and finally, the high-temperature methanol is discharged from the feed opening 253 into the first reaction chamber 201 in a gasified state.

In an embodiment of the present application, referring to fig. 2, fig. 4 and fig. 6, the heat conducting plate 251 is disposed on a side of the spoiler 24 away from the second air inlet 21, the heat conducting plate 251 is provided with a second ventilation hole 255, and the second ventilation hole 255 is disposed opposite to the spoiler 24.

Specifically, the external gas sequentially passes through the second gas inlet 21, the spoiler 24 and the heat conducting plate 251, the gas flow after the turbulent flow treatment of the spoiler 24 passes through the second vent holes 255 on the heat conducting plate 251, the second vent holes 255 on the heat conducting plate 251 can further disturb the gas flow entering the first reaction chamber 201, and meanwhile, the temperature of the gas flow after passing through the second vent holes 255 is increased because the heat conducting plate 251 is in a high-temperature state after being heated by the heating rod 252, so that the gas flow can more fully react with the methanol in the subsequent catalytic reaction process.

In one embodiment of the present application, referring to fig. 2, 4 and 6, the heating assembly 25 includes a heat conducting plate 251 and a heating rod 252, wherein a liquid supply channel is formed in the heat conducting plate 251, the liquid supply channel is communicated with a feeding port 253 and the first reaction chamber 201, the heating rod 252 is disposed on the heat conducting plate 251, and heat in the heating rod 252 can pass through the heat conducting plate 251.

Specifically, the heating rod 252 and the heat conducting plate 251 are in contact with each other, and the heat of the heating rod 252 can be transferred to the heat conducting plate 251 by heat transfer, the heat conducting plate 251 is made of heat conducting material, the heat in the heat conducting rod can be transferred to the heat conducting plate 251 more efficiently, meanwhile, a liquid supply channel is formed in the heating assembly 25, the liquid supply channel is mainly used for transferring methanol liquid, one end of the liquid supply channel is a liquid inlet 254, and the other end of the liquid supply channel is a liquid inlet 253, external methanol liquid enters from the liquid inlet 254, and then is discharged from the liquid inlet 253 to the first reaction chamber 201 through a liquid guide channel, when the heating assembly 25 starts a heating function, the temperature of the whole heating assembly 25 rises, so that the temperature of the methanol liquid in the liquid supply channel rises, and finally, the high-temperature methanol is discharged from the liquid inlet 253 to the first reaction chamber 201 in a gasified state.

In one embodiment of the present application, referring to fig. 2, 4 and 6, the heating rod 252 is embedded in the heat conducting plate 251.

Specifically, by embedding the heating rod 252 inside the heat conduction plate 251, the heat of the heating rod 252 is prevented from being dissipated into the surrounding air during the heat transfer of the heat conduction plate 251 by the heating rod 252, and at the same time, the heating rod 252 is embedded inside the heat conduction plate 251, so that the heat conduction plate 251 is in complete contact with the outer surface of the heating rod 252, thereby improving the efficiency of the heating rod 252 in heating the heat conduction plate 251.

In one embodiment of the present application, referring to fig. 2 and 4 together, the catalyst body 23 is a honeycomb.

Specifically, be equipped with the catalyst that is used for catalyzing oxygen and gasification methyl alcohol to take place chemical reaction in the catalyst body 23, air mixes with the catalyst contact in the catalyst body 23 again with methyl alcohol, can make the effect of catalytic reaction better, first reaction chamber 201 is including mixing chamber and catalysis chamber, the medial surface of first reaction chamber 201 is equipped with annular spacing convex part, annular spacing convex part sets up between mixing chamber and catalysis chamber, the mixing chamber is located one side that first reaction chamber 201 is close to second air inlet 21, the catalysis chamber is located one side that first reaction chamber 201 is close to heat extraction port 22, spoiler 24 and heat-conducting plate 251 all set up in the mixing chamber, catalyst body 23 sets up in the catalysis chamber, catalyst body 23 offsets with one side that annular spacing convex part is close to heat extraction port 22, in order to prevent catalyst body 23 from entering the mixing chamber, in this embodiment, catalyst body 23 is honeycomb structure, be equipped with a plurality of air vents on the catalyst body 23, the one end of a plurality of heat extraction air vents faces second air inlet 21, the other end faces mouth 22, make the air current can pass from a plurality of air vents dispersedly, thereby more fully react with catalyst body 23.

In one embodiment of the present application, referring to fig. 2, the outer shell 10 includes an outer layer 11, an inner layer 12, and an insulating layer 13, wherein the insulating layer 13 is sandwiched between the outer layer 11 and the inner layer 12.

Specifically, the heat-insulating layer 13 is made of a heat-insulating material, and is sandwiched between the outer layer 11 and the inner layer 12, so that heat loss in the heat supply cavity 101 can be effectively delayed, energy consumption in the heat supply process is further reduced, and the heat utilization rate of the whole catalytic heating device is improved.

In an embodiment of the present application, please refer to fig. 2, a first air inlet 14 and an air outlet 15 are provided on the outer casing 10, the first air inlet 14 is communicated with a second air inlet 21, the air outlet 15 is communicated with the heat supply chamber 101, and the air outlet 15 is provided on a side of the outer casing 10 away from the heat discharging opening 22.

Specifically, as shown in an airflow route diagram in fig. 2, the airflow discharged from the heat discharge opening 22 through the catalytic reaction moves toward a direction away from the first air inlet 14 without touching an external object, and the direction of the airflow is not changed until the airflow contacts the inner wall surface of the outer shell 10, and by disposing the air outlet 15 on the side of the outer shell 10 away from the heat discharge opening 22, the airflow discharged from the heat discharge opening 22 can be made to reach the inner side wall of the outer shell 10, and then the airflow reversely moves and is discharged toward the direction of the heat discharge opening 22, so that the whole heat supply cavity 101 can be filled with the high-temperature gas discharged from the heat discharge opening 22 as much as possible, and the heat distribution in the heat supply cavity 101 is made more uniform.

In an embodiment of the present application, referring to fig. 1 to 6 together, the hydrogen production apparatus 30 includes a heavy whole body 31 and a purification body 32, the heavy whole body 31 is formed with a heating cavity and a second reaction cavity 311 which are isolated from each other, the heating cavity is communicated with the heat supply cavity 101 and the heat exhaust opening 22, the second reaction cavity 311 stores a catalyst, the second reaction cavity 311 is enclosed at the outer periphery side of the heating cavity, and the purification body 32 is disposed in the heating cavity.

Specifically, the catalyst in the second reaction chamber 311 is the same as the catalyst in the catalyst body 23, the reforming body 31 is an annular structure with two open ends, the second reaction chamber 311 is surrounded on the periphery of the heating chamber, the reaction body 20 is arranged at the opening of the reforming body 31 close to the side of the second air inlet 21, the gas with heat discharged from the heat discharge opening 22 directly enters the heating chamber, the heat in the heating chamber can be transferred into the second reaction chamber 311, and meanwhile, the purifying body 32 is arranged in the heating chamber, so the gas with heat can directly heat the purifying body 32.

Specifically, as shown in the air flow path diagram in fig. 2, after the gas in the heating chamber is discharged from the opening at the end of the reforming body 31 away from the reaction body 20, the gas flows along the inner wall surface of the outer casing 10 to the air outlet 15, and in this process, the high-temperature gas flow passes through the outer side surface of the reforming body 31 again, so as to further heat the heating chamber and the second reaction chamber 311, further improve the efficiency of heat supply and improve the utilization rate of heat.

Specifically, a control valve is disposed between the second reaction chamber 311 and the purifying body 32, when the catalyst in the second reaction chamber 311 reaches the reaction temperature, methanol water is introduced into the second reaction chamber 311, so that the methanol water and the catalyst generate a secondary hydrogen gas in the second reaction chamber 311, and then the control valve is opened, and the secondary hydrogen gas is introduced into the purifying body 32 to purify the pure hydrogen gas.

The foregoing is only a preferred embodiment of the present invention, and the technical principles of the present invention have been specifically described, and the description is only for the purpose of explaining the principles of the present invention, and should not be construed as limiting the scope of the present invention in any way. Any modifications, equivalents, and improvements made within the spirit and principles of the invention and other embodiments of the invention that may occur to persons skilled in the art without the use of inventive faculty are intended to be included within the scope of the invention as defined in the claims.

Claims

1. A hydrogen production apparatus, comprising:

the heat exchanger comprises an outer shell, wherein a heat supply cavity is arranged in the outer shell; the outer shell is provided with a first air inlet and an air outlet which are respectively communicated with the heat supply cavity;

the hydrogen production device is arranged in the heat supply cavity;

the heat supply device is arranged in the heat supply cavity; the heating device comprises a reaction body and a catalyst body, wherein a first reaction cavity is arranged in the reaction body, a second air inlet, an air exhaust opening and a feed inlet which are respectively communicated with the first reaction cavity are arranged on the reaction body, the second air inlet corresponds to the first air inlet, the air exhaust opening corresponds to the hydrogen production device, external methanol can enter the first reaction cavity through the feed inlet, the catalyst body is arranged in the first reaction cavity and used for catalyzing the methanol in the first reaction cavity and oxygen to generate chemical reaction.

2. The hydrogen plant as claimed in claim 1, characterized in that: the heat supply device further comprises a spoiler, the spoiler is arranged in the first reaction cavity and is opposite to the second air inlet, and a plurality of first air vents are formed in the spoiler.

3. The hydrogen plant as claimed in claim 2, characterized in that: and a flow guide block is arranged on one side of the spoiler close to the second air inlet.

4. The hydrogen plant as claimed in claim 2, characterized in that: the heating device also comprises a heating component, wherein the heating component is arranged in the first reaction cavity and is arranged between the spoiler and the catalyst body, and can heat the methanol in the first reaction cavity so as to gasify the methanol.

5. The hydrogen plant as claimed in claim 4, characterized in that: the heating assembly is arranged on one side, away from the second air inlet, of the spoiler, a second vent hole is formed in the heating assembly, and the second vent hole is opposite to the spoiler.

6. The hydrogen plant as claimed in claim 4, characterized in that: the heating assembly comprises a heat-conducting plate and a heating rod, a liquid supply channel is arranged in the heat-conducting plate, the liquid supply channel is communicated with the feed inlet and the first reaction cavity, the heating rod is arranged on the heat-conducting plate, and heat in the heating rod can be transferred to the heat-conducting plate.

7. The hydrogen plant as claimed in claim 6, characterized in that: the heating rod is embedded in the heat-conducting plate.

8. The hydrogen plant as claimed in any of claims 1 to 7, characterized in that: the catalyst body is honeycomb-shaped.

9. The hydrogen plant as claimed in any of claims 1 to 7, characterized in that: the shell body comprises an outer layer, an inner layer and a heat-insulating layer, wherein the heat-insulating layer is clamped between the outer layer and the inner layer.

10. The hydrogen plant as claimed in any of claims 1 to 7, characterized in that: hydrogen plant is including heavy whole and purification body, heavy whole is formed with heating chamber and second reaction chamber of mutual isolation, the heating chamber with heat supply chamber reaches heat extraction mouth intercommunication, deposit the catalyst in the second reaction chamber, and the second reaction chamber encloses to be established the periphery side in heating chamber, the purification body sets up heating intracavity.