A hydrogen reactor and a hydrogen production system

Abstract

The present invention discloses a hydrogen reactor and a hydrogen production system. The hydrogen reactor includes: a hydrogen reaction part with a reaction space inside, and a hydrogen outlet and a steam inlet are provided on the hydrogen reaction part; a hydrogen production catalyst disposed in the reaction space; a hot waste gas sleeve sleeved outside the hydrogen reaction part; or: the hydrogen reaction part is sleeved outside the hot waste gas sleeve; a hot waste gas heating channel is formed between the hot waste gas sleeve and the hydrogen reaction part, and a hot waste gas inlet and a waste gas outlet communicating with the hot waste gas heating channel are provided on the hot waste gas sleeve. The present invention heats the hydrogen reaction part with the hot waste gas, provides the heat required for hydrogen reaction, reduces the heating cost, and realizes the reuse of the hot waste gas.

Description

Technical Field

[0001] The present invention relates to the technical field of combustion furnaces, and particularly to a hydrogen reactor and a hydrogen production system. Background Art

[0002] As an ideal new energy source, hydrogen has the following characteristics:

[0003] (1) Hydrogen has a high heat release efficiency. Burning 1 gram of hydrogen can release 140,000 joules of heat, which is about 3 times the heat released by burning 1 gram of gasoline, and it can be recycled.

[0004] (2) The main raw material of hydrogen is water, and there are 2 hydrogen atoms in 1 water molecule; and water accounts for 71% of the earth's surface, so the resources are very rich.

[0005] Although hydrogen energy has so many advantages as mentioned above, at present, the development of hydrogen energy is restricted due to the high cost of producing hydrogen.

[0006] In the prior art, the reaction for preparing hydrogen often requires a large amount of heat. Existing methods for providing a large amount of heat, such as burning coal. However, a large amount of hot waste gas generated after coal combustion is often directly discharged into the air, resulting in waste and environmental pollution. Existing heating methods also include electric heating, but electric heating often has disadvantages such as high initial investment cost, difficult subsequent maintenance and repair due to complex structure, and excessive energy consumption. Summary of the Invention

[0007] Therefore, the embodiments of the present invention provide a hydrogen reactor and a hydrogen production system, which reduce the heating cost, realize the reuse of the hot waste gas, and use this heat for hydrogen production, greatly improving the energy utilization rate and reducing the cost.

[0008] On the one hand, the embodiments of the present invention provide a hydrogen reactor, including: a hydrogen reaction part, which is provided with a reaction space, and the hydrogen reaction part is provided with a hydrogen outlet and a steam inlet; a hydrogen production catalyst, which is arranged in the reaction space; a hot waste gas sleeve, which is sleeved outside the hydrogen reaction part; or: the hydrogen reaction part is sleeved outside the hot waste gas sleeve; a hot waste gas heating channel is formed between the hot waste gas sleeve and the hydrogen reaction part, and the hot waste gas sleeve is provided with a hot waste gas inlet and an exhaust gas outlet communicating with the hot waste gas heating channel.

[0009] In an embodiment of the present invention, the hot waste gas inlet is opened at one bottom end of the hot waste gas sleeve in the vertical direction, and the exhaust gas outlet is opened at one top end; the hydrogen reactor further includes: a hot waste gas input channel, which is connected to the hot waste gas inlet and is used for inputting hot waste gas; an exhaust gas output channel, which is connected to the exhaust gas outlet and is used for outputting the heat-exchanged exhaust gas.

[0010] Technical effects achieved after adopting this technical solution: The hot waste gas enters the hot waste gas heating channel through the hot waste gas input channel. After the hot waste gas heats the hydrogen reaction part, it is discharged from the hot waste gas output channel. The above method uses the hot waste gas for heating, reducing the heating cost, and realizing the reuse of the hot waste gas, which can avoid the environmental protection problems caused by the direct discharge of the hot waste gas into the environment.

[0011] In an embodiment of the present invention, the hydrogen reactor further includes: a heat storage assembly filled in the hot waste gas heating channel.

[0012] Technical effects achieved after adopting this technical solution: The heat storage assembly can store the heat in the hot waste gas, avoiding the situation where the hot waste gas has a fast flow rate and the heat cannot be absorbed in time and flows away. After adopting the heat storage assembly, the heat can be fully absorbed, and the heat of the hot waste gas is retained in the heat storage assembly. Then, the heat is evenly transferred to the medium to be heated through the heat storage assembly, realizing the reuse of the hot waste gas.

[0013] In an embodiment of the present invention, the heat storage assembly includes: a heat storage block, which is arranged in a fitting manner with the hydrogen reaction part.

[0014] Technical effects achieved after adopting this technical solution: The heat storage block can store the heat in the hot waste gas, avoiding the situation where the hot waste gas has a fast flow rate and the heat cannot be absorbed in time and flows away. After adopting the heat storage block, the heat can be fully absorbed, and the heat of the hot waste gas is retained in the heat storage block. Then, the heat is evenly transferred to the medium to be heated through the heat storage block, realizing the reuse of the hot waste gas.

[0015] In an embodiment of the present invention, the heat storage assembly further includes: at least one fin, which is arranged in the hot waste gas heating channel, and at least one heat storage ball is arranged outside each fin.

[0016] Technical effects achieved after adopting this technical solution: The hot waste gas passes through the heat storage balls and heats them. The heat storage balls fully absorb the heat in the hot waste gas, avoiding the situation where the hot waste gas has a fast flow rate and the heat cannot be absorbed in time and flows away, so that the heat of the hot waste gas is retained in the heat storage balls. Then, the heat storage balls continuously and evenly supply heat to the hydrogen reaction part; the fins are used to increase the heat receiving area of the hydrogen reaction part and have good heat dissipation performance, thereby improving the heating efficiency of the hydrogen reaction part.

[0017] In an embodiment of the present invention, the hydrogen reactor further includes: a heat insulation layer, which is sleeved outside the hot waste gas heating sleeve or arranged on the inner wall of the hot waste gas sleeve.

[0018] Technical effects achieved after adopting this technical solution: The thermal insulation layer is used to prevent the hot exhaust gas sleeve from transmitting heat to the external environment, avoiding heat loss of the hot exhaust gas, reducing unnecessary waste, and improving the utilization rate of the hot exhaust gas; the thermal insulation layer can also reduce the influence of the external environment on the hot exhaust gas sleeve, and improve the heating efficiency of the hot exhaust gas on the hydrogen reactor.

[0019] In an embodiment of the present invention, the thermal insulation layer is a vacuum thermal insulation layer or a heat-insulating thermal insulation layer.

[0020] Technical effects achieved after adopting this technical solution: The vacuum thermal insulation layer can prevent heat conduction and heat convection of the hot exhaust gas sleeve to the external environment, and the heat-insulating thermal insulation layer can prevent heat radiation of the hot exhaust gas sleeve to the external environment.

[0021] In an embodiment of the present invention, the vacuum thermal insulation layer includes: a first baffle connected to one end of the outer shell of the hot exhaust gas sleeve close to the input pipe and sleeved outside the hydrogen reaction part; a second baffle connected to one end of the outer shell of the hot exhaust gas sleeve close to the output pipe and sleeved outside the hydrogen reaction part; an inner wall of the vacuum layer, one end connected to the first baffle and the other end connected to the second baffle; wherein, a vacuum thermal insulation layer is formed between the first baffle, the second baffle, the inner wall of the vacuum layer and the hot exhaust gas sleeve or the hydrogen reaction part.

[0022] Technical effects achieved after adopting this technical solution: Implement the vacuum thermal insulation layer to prevent heat conduction and heat convection of the hot exhaust gas sleeve to the external environment.

[0023] In an embodiment of the present invention, the hydrogen reactor further includes: an electric heater connected to the reaction part housing and disposed in the hydrogen reaction space.

[0024] Technical effects achieved after adopting this technical solution: When the heat provided by the hot exhaust gas to the hydrogen reaction is insufficient, the electric heater can be used to provide heat for the hydrogen reaction.

[0025] On the other hand, an embodiment of the present invention provides a hydrogen production system, for example, including: a hydrogen reactor as described in any one of the above embodiments; at least one steam generating device connected to the steam inlet; wherein, the steam generated by the steam generating device reacts in the hydrogen reactor to produce hydrogen.

[0026] Technical effects achieved after adopting this technical solution: Reduce the heating cost in the hydrogen production process and realize the reuse of the hot exhaust gas.

[0027] In summary, the above embodiments of the present application may have the following advantages or beneficial effects: i) Hot exhaust gas flows through the hot exhaust gas sleeve, and the hot exhaust gas provides heat to the hydrogen reaction part, reducing the heating cost and realizing the reuse of the hot exhaust gas; ii) The heat storage block can store the heat in the hot exhaust gas and provide heat to the hydrogen reaction part, realizing the reuse of the hot exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0029] Figure 1 FIG. 9 is a schematic structural diagram of the first structure of a hydrogen reactor 100 provided by the first embodiment of the present invention.

[0030] Figure 2 FIG. 13 is a schematic structural diagram of the second structure of a hydrogen reactor 100 provided by the first embodiment of the present invention.

[0031] Figure 3 FIG. Figure 2 is an explosion view of the hydrogen reactor 100 in FIG.

[0032] Figure 4 FIG. Figure 2 is a cross-sectional view of the hydrogen reactor 100 in FIG.

[0033] Figure 5 FIG. 29 is an explosion view of the third structure of a hydrogen reactor 100 provided by the first embodiment of the present invention.

[0034] Figure 6 FIG. Figure 5 is a cross-sectional view of a hydrogen reactor 100 in FIG.

[0035] Figure 7 FIG. 39 is an explosion view of the fourth structure of a hydrogen reactor 100 provided by the first embodiment of the present invention.

[0036] Figure 8 FIG. Figure 7 is a schematic structural diagram of the first annular baffle 41, the second annular baffle 42 and the inner wall 23 of the hot exhaust gas sleeve in FIG.

[0037] Figure 9 FIG. Figure 7 is a cross-sectional view of a hydrogen reactor 100 in FIG.

[0038] Figure 10 FIG. Figure 1An exploded view of a hydrogen reactor 100.

[0039] Figure 11 For Figure 1 A cross-sectional view of a hydrogen reactor 100.

[0040] Figure 12 A schematic structural diagram of a hydrogen production system 200 provided by the second embodiment of the present invention.

[0041] Figure 13 For Figure 12 A schematic structural diagram of a hydrogen production system 200 from another perspective.

[0042] Main component symbol description:

[0043] 100 is a hydrogen reactor; 10 is a hydrogen reaction part; 11 is a reaction space; 12 is a steam inlet; 13 is a hydrogen outlet; 20 is a hot waste gas sleeve: 21 is a hot waste gas input channel; 22 is a waste gas output channel; 23 is a hot waste gas sleeve housing, 24 is a hot waste gas heating channel; 30 is a heat storage body; 40 is a heat insulation layer; 41 is a first annular baffle; 42 is a second annular baffle; 43 is the inner wall of the vacuum layer; 50 is an electric heater;

[0044] 200 is a hydrogen production system; 210 is a steam generating device; 220 is a hot waste gas input pipeline; 230 is a waste gas output pipeline. Specific embodiments

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046]

First Embodiment

[0047] Refer to Figure 2 , Figure 3 and Figure 4 , which is a hydrogen reactor 100 provided by the first embodiment of the present invention; a hydrogen reactor 100 includes, for example: a hydrogen reaction part 10, a hydrogen production catalyst (not marked in the figure), and a hot waste gas sleeve 20. Among them, a reaction space 11 is provided inside the hydrogen reaction part 10. Along the vertical direction, a hydrogen outlet 13 is opened at one end of the bottom of the hydrogen reaction part, and a steam inlet 12 is opened at one end of its top; the hydrogen production catalyst is arranged in the reaction space 11; the hot waste gas sleeve 20 is sleeved outside or on the hydrogen reaction part 10, and a hot waste gas heating channel 24 is formed between the hot waste gas sleeve 20 and the hydrogen reaction part 10. A communication with the hot waste

[0048] The hot waste gas inlet (not shown in the figure) and the hot waste gas outlet (not shown in the figure) of the gas heating channel 24.

[0049] Specifically, referring to Figure 3 , the hydrogen reaction part 10 can be a reaction furnace with a cylindrical furnace body. A cylindrical reaction space 11 is arranged inside the reaction furnace. One end of the top of the reaction furnace in the vertical direction is provided with a flange (not shown in the figure) to enhance the sealing performance of the reaction space 11; the steam inlet 12 and the hydrogen outlet 13 can be cylindrical insertion pipes, and flanges can be arranged on the steam inlet 12 and the hydrogen outlet 13 to enhance the sealing performance; the hot waste gas sleeve 20 can be a cylindrical sleeve, and the inner diameter of the cylindrical sleeve needs to be consistent with the outer diameter of the cylindrical reaction furnace to ensure the sealing performance of the hot waste gas heating channel.

[0050] For example, referring to Figure 4 , steam is introduced into the reaction space 11 from the steam inlet 12, and hot waste gas is introduced into the hot waste gas heating channel 24 from the hot waste gas inlet. The hot waste gas provides heat for heating the hydrogen reaction part 10. Then, the steam in the reaction space 11 undergoes a hydrogen reaction under the action of the hydrogen production catalyst to generate hydrogen. The hydrogen is discharged through the hydrogen outlet 13 and collected. After the heat of the hot waste gas is absorbed by the hydrogen reaction part 10, it is discharged through the waste gas outlet; thereby reducing the heating cost of the hydrogen reaction, and using the hot waste gas for heating can avoid the environmental protection problems caused by directly discharging the hot waste gas into the environment.

[0051] Further, in the vertical direction, the hot waste gas inlet is arranged at one end of the bottom of the hot waste gas sleeve 20, and the waste gas outlet is arranged at one end of the top; the hot waste gas sleeve 20 further includes, for example: a hot waste gas input channel 21 and a waste gas output channel 22; wherein, the hot waste gas input channel 21 is connected to the hot waste gas inlet for inputting hot waste gas; the waste gas output channel 22 is connected to the waste gas outlet for outputting the waste gas after heat exchange. For example, hot waste gas is introduced into the hot waste gas heating channel 24 from the hot waste gas input channel 21. The hot waste gas provides heat for heating the hydrogen reaction part 10, and the waste gas after heat exchange is discharged through the waste gas output channel 22.

[0052] Preferably, referring to Figure 5 and Figure 6 , the hydrogen reactor 100 further includes, for example: a heat storage component (not shown in the figure). Among them, the heat storage component is filled in the hot waste gas heating channel 11, and it can absorb the heat in the hot waste gas and heat the hydrogen reaction part. For example, hot waste gas is introduced into the hot waste gas heating channel 24 from the hot waste gas input channel 21. The heat storage component can absorb the heat in the hot waste gas and provide heat to the hydrogen reaction part 10.

[0053] Preferably, referring to Figure 5 and Figure 6 , the heat storage assembly may further include, for example: a heat storage block 30; wherein, the heat storage block 30 is disposed in contact with the hydrogen reaction part 10, and is used to absorb the heat in the hot exhaust gas and supply heat to the hydrogen reaction part 10. Further, a plurality of hot exhaust gas through holes (not marked in the figure) may be provided on the heat storage block 30 to increase the contact area between the heat storage block 30 and the hot exhaust gas, thereby improving the heat absorption efficiency of the heat storage block 30.

[0054] For example, hot exhaust gas is introduced into the hot exhaust gas heating channel 24 through the hot exhaust gas input channel 21. When the hot exhaust gas moves in the hot exhaust gas channel 24 towards the exhaust gas output channel 22, the hot exhaust gas passes through the outside of the heat storage block 30 and the hot exhaust gas through holes of the heat storage block 30, and heats the heat storage block 30. After the heat storage block 30 absorbs the heat in the hot exhaust gas, it continuously supplies heat to the hydrogen reaction part 10, thereby efficiently utilizing the heat in the hot exhaust gas and avoiding the low utilization rate of the hot exhaust gas caused by insufficient residence time of the hot exhaust gas in the hot exhaust gas channel 24; the heat storage block 30 may be made of materials such as ceramics and activated carbon.

[0055] Preferably, the heat storage assembly may further include, for example: at least one fin and at least one heat storage ball. Wherein, at least one of the fins is disposed in the hot exhaust gas heating channel, and at least one heat storage ball is provided outside each fin. Specifically, hot exhaust gas is introduced into the hot exhaust gas heating channel 24 through the hot exhaust gas input channel 21. When the hot exhaust gas moves in the hot exhaust gas channel 24 towards the exhaust gas output channel 22, the hot exhaust gas passes through the heat storage ball and heats it. After the heat storage ball absorbs the heat in the hot exhaust gas, it continuously supplies heat to the hydrogen reaction part 10; the fin is used to increase the heating area of the hydrogen reaction part 10 and improve the heating efficiency of the hydrogen reaction part 10; the heat storage ball may be made of materials such as ceramics and activated carbon, and the fin may be made of materials with good thermal conductivity such as copper alloy, aluminum alloy and stainless steel.

[0056] Preferably, referring to Figure 7 , Figure 8 and Figure 9 , the hydrogen reactor 100 may further include, for example: a heat insulation layer (not marked in the figure); wherein, the heat insulation layer is sleeved outside the hot exhaust gas sleeve 20 or disposed outside the hydrogen reaction part 10. For example, the hydrogen reactor 100 may have a three-layer structure. The inner layer is the hydrogen reaction part 10, the middle layer is the hot exhaust gas sleeve 20, and the outer layer is the heat insulation layer. The heat insulation layer is used to prevent the hot exhaust gas sleeve 20 from spreading to the external environment, avoiding heat loss of the hot exhaust gas, reducing unnecessary waste, and improving the utilization rate of the hot exhaust gas; the heat insulation layer can also reduce the influence of the external environment on the hot exhaust gas sleeve 20 and improve the heating efficiency of the hot exhaust gas on the hydrogen reactor 100.

[0057] Specifically, the heat insulation layer is a heat-insulating layer or a vacuum insulation layer 40. Among them, the heat-insulating layer can be made of heat-insulating materials to cut off the heat conduction of the hot waste gas sleeve 20 to the external environment; or a layer of reflective coating can be applied on the inner wall of the hot waste gas sleeve 20, and the reflective coating is used to block the heat radiation of the hot waste gas sleeve 20 to the external environment, thereby effectively reducing the energy loss of the hot waste gas sleeve 20.

[0058] For example, refer to Figure 7 、 Figure 8 and Figure 9 , the vacuum insulation layer 40 includes, for example: a first baffle, a second baffle, the inner wall 43 of the vacuum layer, and the outer shell 23 of the hot waste gas sleeve. Among them, the first baffle can be a first annular baffle 41, connected to one end of the outer shell 23 of the hot waste gas sleeve near the steam inlet 12, and sleeved outside the hydrogen reaction part 10; the second baffle can be a second annular baffle 42, connected to one end of the outer shell 23 of the hot waste gas sleeve near the hydrogen outlet 13, and sleeved outside the hydrogen reaction part 10; one end of the inner wall 43 of the vacuum layer is connected to the first annular baffle 41, and the other end is connected to the second annular baffle 42. Among them, a vacuum insulation layer 40 is formed between the first annular baffle 41, the second annular baffle 42, the inner wall 43 of the vacuum layer, and the outer shell 23 of the hot waste gas sleeve.

[0059] Specifically, the outer ring of the first annular baffle 41 and the outer ring of the second annular baffle 42 are connected to the outer shell 23 of the hot waste gas sleeve. Correspondingly, the inner ring of the first annular baffle 41 and the inner ring of the second annular baffle 42 are connected to the inner wall 43 of the vacuum layer. Among them, the inner wall 43 of the vacuum layer can be the outer wall of the heat storage block 30. Then the vacuum insulation layer 40 is an annular space, the inner wall 43 of the vacuum layer is the inner wall of the annular space, and the outer shell 23 of the hot waste gas sleeve is the outer wall of the annular space.

[0060] Preferably, the vacuum insulation layer 40 can also be formed between the first annular baffle 41, the second annular baffle 42, the inner wall 43 of the vacuum layer, and the outer shell of the hydrogen reaction part 10. For example, when the hydrogen reaction part 10 is sleeved outside the hot waste gas sleeve 20, the inner wall 43 of the vacuum layer is sleeved outside the outer shell 23 of the hot waste gas sleeve and is located inside the hydrogen reaction part 10. The inner rings of the first annular baffle 41 and the second annular baffle 42 are connected to the inner wall 43 of the vacuum layer, and the outer rings are connected to the outer shell of the hydrogen reaction part 10, thereby forming the vacuum insulation layer 40.

[0061] Preferably, refer to Figure 1 、 Figure 10 and Figure 11, the hydrogen reactor 100 further includes, for example: an electric heater 50; wherein, the electric heater 50 is connected to the housing of the hydrogen reaction part 10 and is disposed in the reaction space 11. For example, when the heat provided by the hot waste gas to the reaction space 20 is insufficient and the temperature in the reaction space cannot reach the temperature required for hydrogen reaction and hydrogen cannot be generated, the electric heater 50 can be used to provide more heat; the electric heater 50 can be a resistance heating heater or an infrared heater, etc.

[0062] Preferably, temperature sensors can be provided on the steam inlet 12, the hydrogen outlet 13, the hot waste gas input channel 21, and the waste gas output channel 22. The temperature sensors are used to detect the temperatures of the steam, the hydrogen, and the hot waste gas, thereby enhancing the controllability of the hydrogen reactor 100. For example, when it is detected that the temperature of the hot waste gas is low and insufficient to provide the temperature required for hydrogen reaction, the electric heater 50 needs to be turned on to provide additional heat to the hydrogen reaction part 10; the temperature sensor can be a thermocouple.

[0063]

Second Embodiment

[0064] See Figure 12 , which is a hydrogen production system 200 provided by the second embodiment of the present invention. The hydrogen production system 200 includes, for example: a steam generation device 210 (such as Figure 12 is one) and at least one hydrogen reactor 100 as described in the first embodiment (such as Figure 12 is two). Among them, the steam generation device 210 is connected to the steam inlet 12, and the steam generation device 210 transports the steam into the reaction space 11 through the steam inlet 12.

[0065] Preferably, see Figure 13 , a hydrogen production system 200 further includes, for example: a hot waste gas input pipe 220 and a waste gas output pipe 230; wherein, the hot waste gas input pipe 220 communicates with the hot waste gas input channel 21 to input the hot waste gas into the hot waste gas input channel 21; the waste gas output pipe 230 communicates with the waste gas output channel 22, and the heat-exchanged waste gas is discharged through the waste gas output channel 22 to the waste gas output pipe 230. Further, the hot waste gas can also be introduced into the steam generation device 210 to provide heat for steam generation.

[0066] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydrogen reactor, characterized in that, comprising: A hydrogen reaction part with a reaction space inside, and a hydrogen outlet and a steam inlet are provided on the hydrogen reaction part; A hydrogen production catalyst provided in the reaction space; A hot waste gas sleeve sleeved outside the hydrogen reaction part; A hot waste gas heating channel is formed between the hot waste gas sleeve and the hydrogen reaction part, and a hot waste gas inlet and an exhaust gas outlet communicating with the hot waste gas heating channel are provided on the hot waste gas sleeve; A heat storage assembly filled in the hot waste gas heating channel, and the heat storage assembly includes: A heat storage block arranged in a fitting manner with the hydrogen reaction part; At least one fin provided in the hot waste gas heating channel, and at least one heat storage ball is provided outside each fin; A heat insulation layer provided outside the hydrogen reaction part, and the heat insulation layer is a vacuum heat insulation layer or a heat insulation layer; The vacuum heat insulation layer includes: A first baffle connected to one end close to the steam inlet; A second baffle connected to one end close to the hydrogen outlet; The inner wall of the vacuum layer is connected to the first baffle at one end and the second baffle at the other end; Wherein, a vacuum heat insulation layer is formed between the first baffle, the second baffle, the inner wall of the vacuum layer and the hot waste gas sleeve; An electric heater is connected to the shell of the hydrogen reaction part and provided in the reaction space.

2. The hydrogen reactor according to claim 1, characterized in that, The hot waste gas inlet and the exhaust gas outlet are provided at one end of the hot waste gas sleeve; the hydrogen reactor further includes: A hot waste gas input channel connected to the hot waste gas inlet for inputting hot waste gas; An exhaust gas output channel connected to the exhaust gas outlet for outputting the heat-exchanged exhaust gas.

3. A hydrogen production system, characterized in that, comprising: At least one hydrogen reactor as described in claim 1 or 2; At least one steam generating device provided with a steam outlet and connected to the steam inlet; Wherein, the steam generating device transports the steam to the hydrogen reactor through the steam inlet.

Images