Tubular reactor, heating furnace device and biomass charcoal hydrogen production device having the same

Abstract

The present invention discloses a tubular reactor, a heating furnace device and a biomass charcoal hydrogen production device having the same. The tubular reactor comprises: a closed steam inlet chamber is provided on the outer wall of a reaction section, a first through hole connected to the reaction section is provided at a position of the reaction section corresponding to the steam inlet chamber, and a second through hole connected to the steam inlet chamber is provided on the outer wall of the steam inlet chamber; a gas collecting pipe is provided in the tube body and the axis of the gas collecting pipe is parallel to or coincides with the axis of the tube body, a biomass charcoal channel is formed between the outer wall of the gas collecting pipe and the inner wall of the tube body, the gas collecting pipe comprises a first collecting pipe and a second collecting pipe, the first collecting pipe is sleeved on the top of the second collecting pipe and a gap is formed for gas to pass through, wherein the lower end face of the first collecting pipe is located at the junction of the reaction section and the heating section or the lower end face of the first collecting pipe partially extends into the reaction section. The tubular reactor for a biomass charcoal hydrogen production device according to an embodiment of the present invention can enhance heat transfer and effectively increase hydrogen production.

Description

Technical Field

[0001] The present invention relates to the field of biomass charcoal hydrogen production, and in particular to a tubular reactor and a heating furnace device for a biomass charcoal hydrogen production device and a biomass charcoal hydrogen production device having the same. Background Art

[0002] Biomass resources, such as straw, branches, fruit shells, waste wood, sawdust, etc., are not fully utilized. In related technologies, biomass is usually sent directly into the boiler for combustion to generate steam, which is then driven by the steam turbine to generate electricity. However, this solution consumes a lot of biomass and has a low energy generation rate, there is flue gas pollution, and it needs to be operated on a large scale.

[0003] The biomass charcoal hydrogen production device in the related art produces H2 and CO, and then directly separates H2 and CO, and returns CO to combustion in the post-processing. However, the H2 output in this scheme is relatively low, and the CO and H2 separation process is relatively complicated. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a tubular reactor for a biomass charcoal hydrogen production device, which can enhance heat transfer and effectively increase hydrogen production.

[0005] The present invention also provides a heating furnace device having the above-mentioned tubular reactor for the biomass charcoal hydrogen production device;

[0006] The present invention also provides a biomass charcoal hydrogen production device having the above-mentioned heating furnace device for the biomass charcoal hydrogen production device.

[0007] According to the first aspect of the present invention, a tubular reactor for a biomass charcoal hydrogen production device includes a tube body, wherein the tube body includes a heating section located at the upper section of the tube body and a reaction section located at the lower section of the tube body, the outer wall of the reaction section is provided with an annular closed steam inlet chamber, the position of the reaction section corresponding to the steam inlet chamber is provided with a first through hole connected to the reaction section, and the outer wall of the steam inlet chamber is provided with a second through hole connected to the steam inlet chamber; a gas collecting pipe, wherein the gas collecting pipe is arranged in the tube body and the axis of the gas collecting pipe is parallel to or coincides with the axis of the tube body, a biomass charcoal channel is formed between the outer wall of the gas collecting pipe and the inner wall of the tube body, the gas collecting pipe includes a first collecting pipe and a second collecting pipe, the first collecting pipe is sleeved on the top of the second collecting pipe and a gap is formed between the first collecting pipe and the second collecting pipe for gas to pass through, wherein the lower end surface of the first collecting pipe is located at the junction of the reaction section and the heating section or the lower end surface of the first collecting pipe partially extends into the reaction section.

[0008] According to the tubular reactor used in the biomass charcoal hydrogen production device according to the embodiment of the present invention, an annular closed steam inlet chamber is provided in the reaction section to increase the temperature of the steam entering the tube body, so that the carbon and steam react fully in the reaction section and the reaction efficiency is improved. At the same time, the collecting tube is provided with a structure in which the second collecting tube is sleeved in the first collecting tube, which can further extend the reaction time of the carbon and steam in the tube body and increase the hydrogen production.

[0009] According to some embodiments of the present invention, the lower end surface of the first collecting tube is located at the connection between the reaction section and the heating section, and the upper end surface of the first collecting tube is higher than the upper end surface of the second collecting tube in the vertical direction.

[0010] According to some embodiments of the present invention, the tubular reactor used in the biomass charcoal hydrogen production device also includes: a first positioning member and a second positioning member, the first positioning member includes a first upper positioning member and a first lower positioning member, the first collecting tube is arranged in the tube body through the first upper positioning member and the second collecting tube is arranged in the tube body through the first lower positioning member, and the second positioning member is arranged between the inner wall of the first collecting tube and the outer wall of the second collecting tube so that the first collecting tube is sleeved in the second collecting tube.

[0011] According to some embodiments of the present invention, the steam inlet chamber is an annular steam inlet chamber surrounding the outer wall of the reaction section, and there are multiple first through holes, which are evenly arranged along the outer wall of the reaction section in the annular steam inlet chamber.

[0012] According to some embodiments of the present invention, there are a plurality of second through holes, and the plurality of second through holes are evenly spaced apart and opened on the outer wall of the annular steam inlet chamber, and each of the second through holes is provided with a steam inlet pipe.

[0013] According to some embodiments of the present invention, a diameter of the first through hole is smaller than a diameter of the second through hole.

[0014] According to some embodiments of the present invention, the tubular reactor for the biomass charcoal hydrogen production device further includes a plurality of first fins, and the plurality of first fins are spaced apart and arranged in the heating section and the reaction section.

[0015] A heating furnace device for a biomass charcoal hydrogen production device according to an embodiment of the second aspect of the present invention comprises:

[0016] A heating furnace body, wherein the heating furnace body is arranged vertically and a heating furnace chamber is defined within the heating furnace body, the heating furnace body is provided with an upper through hole, a lower through hole and a flue gas outlet, and the height of the upper through hole in the vertical direction is higher than the height of the lower through hole in the vertical direction; a tubular reactor for a biomass charcoal hydrogen production device according to an embodiment of the first aspect of the present invention, wherein the tubular reactor penetrates into the heating furnace chamber along the upper through hole and passes out along the lower through hole; a burner, wherein the burner is arranged on the heating furnace body for heating the heating furnace chamber.

[0017] A biomass charcoal hydrogen production device according to an embodiment of the third aspect of the present invention, a heating furnace device for a biomass charcoal hydrogen production device according to an embodiment of the second aspect; a steam generating device, the steam generating device is configured to generate steam, the steam generating device includes a steam generator and a steam-water separator; a steam superheater, the steam inlet side of the steam superheater is connected to the steam generator through the steam-water separator, the steam generator and the steam superheater are both arranged in a waste heat chamber connected to the flue gas outlet; a steam reheater, the steam inlet side of the steam reheater is connected to the steam outlet side of the steam superheater and the steam outlet side of the steam reheater is connected to the steam inlet chamber.

[0018] According to some embodiments of the present invention, the steam reheater is a spiral tube coiled around the outer wall of the tube body, and the outer wall of the spiral tube is provided with a plurality of second fins.

[0019] According to some embodiments of the present invention, the steam superheater has a drain valve and an inlet valve. When the temperature in the heating furnace chamber is lower than 800°C, the drain valve is opened and the inlet valve is closed; when the temperature in the heating furnace chamber is between 800°C and 850°C, the drain valve is closed and the inlet valve is opened.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a schematic diagram of a biomass charcoal hydrogen production device according to an embodiment of the present invention;

[0023] Figure 2 It is a partial structural schematic diagram of a heating furnace device for a biomass charcoal hydrogen production device according to an embodiment of the present invention.

[0024] Reference numerals:

[0025] 1 - tubular reactor; 2 - heating furnace chamber; 3 - steam reheater; 4 - burner;

[0026] 5——rotary seal slag discharge valve; 6——steam superheater; 7——steam-water separator; 8——steam generator;

[0027] 9——tube body; 10——first fin; 11——first collecting tube;

[0028] 12——the second collecting pipe; 13——the steam chamber baffle and fin; 14——the outer wall of the annular steam inlet chamber;

[0029] 15, 22 - second positioning member; 16 - heating section; 17 - reaction section; 18 - annular steam inlet chamber;

[0030] 19 - steam inlet pipe; 20 - exhaust valve; 21 - inlet valve; 23 - first upper positioning piece;

[0031] 24——first lower positioning member; DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] The following describes a tubular reactor 1 for a biomass charcoal hydrogen production device according to an embodiment of the present invention with reference to the accompanying drawings.

[0034] like Figure 1 , Figure 2 The tubular reactor 1 for the biomass charcoal hydrogen production device according to an embodiment of the present invention includes a tube body 9 and a gas collecting pipe.

[0035] The tube body 9 includes a heating section 16 at the upper end and a reaction section 17 at the lower end. The outer wall of the reaction section 17 is provided with an annular closed steam inlet chamber. The tube wall of the reaction section 17 corresponding to the steam inlet chamber is provided with a first through hole penetrating its thickness, so that the steam inlet chamber is connected with the tube body 9 through the first through hole. The outer wall of the steam inlet chamber has a second through hole. After the superheated steam is further heated by the steam reheater, it enters the steam inlet chamber through the second through hole, so that the carbon and steam can fully react in the reaction section of the tube body, thereby improving the reaction efficiency.

[0036] The gas collecting pipe is arranged in the tube body 9 through a positioning piece, and is coaxially arranged with the tube body 9 or arranged in parallel with the tube body 9. A biomass charcoal channel (i.e., a raw charcoal channel) is formed between the outer wall of the gas collecting pipe and the inner wall of the tube body 9. The gas collecting pipe is mainly composed of a first collecting pipe 11 and a second collecting pipe 12. The first collecting pipe 11 is sleeved on the top of the second collecting pipe 12, and the first collecting pipe 11 and the second collecting pipe 12 are fitted with a gap, that is, one end of the first collecting pipe 11 is closed (such as the top end), and the inner wall of the other end (such as the bottom end) forms the above-mentioned gap with the outer wall of the second collecting pipe 12, so that H2 generated by the reaction of carbon and steam can enter the first collecting pipe 11 through the gap, and then be discharged through the second collecting pipe 12.

[0037] Among them, the lower end surface of the first collecting tube 11 is located in the plane where the reaction section 17 and the heating section 16 are located, or the lower end surface of the first collecting tube 11 at least partially extends into the reaction section 17, thereby ensuring that the generated gas can fully enter the gap channel between the first collecting tube 11 and the second collecting tube 12.

[0038] Therefore, according to the tubular reactor 1 for the biomass charcoal hydrogen production device according to the embodiment of the present invention, by setting an annular closed steam inlet chamber in the reaction section 17, the temperature of the steam entering the tube body 9 is increased, so that the carbon and steam can fully react in the reaction section, thereby improving the reaction efficiency. At the same time, the collecting tube is set to a structure in which the second collecting tube 12 is sleeved in the first collecting tube 11, which can further allow the carbon and steam to react in the tube body 9 and increase the hydrogen production.

[0039] like Figure 2 In some embodiments, in order to prevent the lower end surface of the first collecting tube 11 from being difficult to collect the generated H2, or to prevent part of the generated H2 from being difficult to enter the gap between the first collecting tube 11 and the second collecting tube 12, the lower end surface of the first collecting tube 11 is located at the connection between the reaction section 17 and the heating section 16, and the upper end surface of the first collecting tube 11 is higher than the upper end surface of the second collecting tube 12 in the vertical direction.

[0040] like Figure 1 and Figure 2 In some examples, in order to achieve the positioning and fixation between the gas collecting pipe and the tube body 9, and the fixation between the first collecting pipe 11 and the second collecting pipe 12, the first positioning member 15 and the second positioning member 22 are also included, wherein the first positioning member includes a first upper positioning member 23 and a first lower positioning member 24, the first collecting pipe 11 is fixed to the tube body 9 by the first upper positioning member 23, and the second collecting pipe 12 is fixed to the tube body 9 by the first lower positioning member 24, and the second positioning members 15 and 22 are arranged between the inner wall of the first collecting pipe 11 and the outer wall of the second collecting pipe 12, so as to achieve the positioning and fixation between the first collecting pipe 11 and the second collecting pipe 12.

[0041] like Figure 2 In some embodiments, the steam inlet chamber is configured as an annular steam inlet chamber 18 surrounding the outer wall of the reaction section 17, and the plurality of first through holes are evenly arranged along the outer wall of the reaction section 17 in the annular steam inlet chamber 18. For example, the plurality of first through holes can be arranged in a star-shaped pattern.

[0042] In this way, the steam first enters the annular steam inlet chamber 18 through the second through hole, and then enters the tube body 9 through the second through holes arranged in a star-like shape in the annular steam inlet chamber 18, thereby effectively achieving the purpose of increasing the contact area, raising the reaction temperature, and improving the reaction efficiency.

[0043] Preferably, if Figure 2 There are multiple second through holes, and the multiple second through holes are evenly spaced and opened on the outer wall of the annular steam inlet chamber 18, and each second through hole is provided with a steam inlet pipe 19.

[0044] Furthermore, in order to increase the residence time of the superheated steam in the steam inlet chamber and raise the steam temperature, and at the same time, in order to increase the contact reaction area in the tube body 9, the aperture of the first through hole is smaller than the aperture of the second through hole, so that the pressure of the steam entering the steam inlet chamber gradually becomes greater than the pressure in the tube body 9, and the aperture of the first through hole is set to a small aperture, which can increase the number of first through holes in the same area range, thereby further increasing the contact area between the steam and the carbon particles.

[0045] like Figure 2 In some embodiments, in order to enhance heat transfer, a plurality of first fins 10 are provided on the outer walls of the heating section 16 and the reaction section 17, and the plurality of first fins 10 are spaced apart and evenly arranged.

[0046] Among them, the outer wall of the reaction section 17 is composed of the first fin 10 of the steam baffle and the fin and m annular steam inlet chambers 18 composed of the outer wall 14 of the annular steam inlet chamber 18. The steam enters the steam inlet chamber through the second through hole from the steam inlet pipe 19 and enters the tube body 9 through the star-shaped small holes, thereby achieving the purpose of increasing the contact area.

[0047] like Figure 1 The heating furnace device for a biomass charcoal hydrogen production device according to the second embodiment of the present invention comprises a heating furnace body, a tubular reactor 1 according to the first embodiment of the present invention, and a burner 4.

[0048] The heating furnace body is arranged vertically, and a heating furnace chamber 2 is defined in the heating furnace body. The heating furnace body has an upper through hole, a lower through hole and a flue gas outlet. The height of the upper through hole in the vertical direction is higher than that of the lower through hole, so as to ensure that the raw charcoal in the tubular reactor 1 can move downward smoothly under the action of gravity.

[0049] The heating section 16 in the tubular reactor 1 preheats the raw charcoal. The preheated raw charcoal in the reaction section 17 reacts with the steam entering through the steam inlet chamber under high temperature to activate C+H2O→H2+CO-129.7KJ to generate H2 and CO. At the same time, CO is converted into H2 and CO2 by CO+H2O in the reaction zone. H2 and CO2 rise to the interface between the heating section 16 and the reaction section 17 and are attracted by the lower opening of the outer sleeve of the H2 collecting tube. H2 and CO2 rise along the hydrogen collecting tube and the outer sleeve of the hydrogen collecting tube to the top hole of the hydrogen collecting tube, enter the hydrogen collecting tube, and are transported to the outside. After dust removal, cooling, compression and other processes, impurities are separated and pure hydrogen is provided for customer convenience.

[0050] The burner 4 is arranged in the heating furnace body and heats the heating furnace chamber 2. The burner 4 may include a plurality of burners. The heating of the burner 4 can make the raw charcoal and the superheated steam react at a high temperature of 800-850°C.

[0051] Therefore, according to the heating furnace device for the biomass charcoal hydrogen production device according to the embodiment of the present invention, the tubular reactor 1 of the first aspect of the embodiment can further allow carbon and steam to react in the tube body 9 to increase the hydrogen production.

[0052] like Figure 1 and Figure 2 The biomass hydrogen production device according to the third embodiment of the present invention includes a heating furnace device, a steam generating device, a steam superheater 6 and a steam reheater 3 according to the second embodiment of the present invention.

[0053] The steam generating device comprises a steam generator 8 and a steam-water separator 7. The steam generator 8 and the steam superheater 6 are both located in the waste heat chamber, and the waste heat chamber is connected to the flue gas outlet, so that the waste heat of the heating furnace chamber 2 is transferred to the waste heat chamber for further recycling.

[0054] The steam inlet side of the steam superheater 6 is connected to the steam generator 8 through the steam-water separator 7, the steam inlet side of the steam reheater 3 is connected to the steam outlet side of the steam superheater 6, and the steam outlet side of the steam reheater 3 is connected to the steam inlet chamber, so that the steam entering the steam inlet chamber is further heated by the steam reheater 3, the reaction temperature is increased, and then the reaction efficiency is improved, and the hydrogen production is increased.

[0055] like Figure 1 In some examples, in order to enhance heat transfer, the steam reheater 3 is a spiral tube wound around the outer wall of the tube body 9, and a plurality of second fins are arranged on the outer wall of the spiral tube at even intervals.

[0056] like Figure 1Optionally, the steam superheater 6 has a drain valve 20 and an inlet valve 21. When the temperature in the heating furnace chamber 2 is lower than 800°C, the drain valve 20 is opened and the inlet valve 21 is closed; when the temperature in the heating furnace chamber 2 is between 800°C and 850°C, the drain valve 20 is closed and the inlet valve 21 is opened.

[0057] The following is combined with Figure 1-2 , describing the working process of the biomass charcoal hydrogen production device according to an embodiment of the present invention.

[0058] A feeding hopper is arranged at the upper end of the tubular reactor 1, the burner 4 is connected to a gas source and equipped with a blower; the inlet of the steam generator 8 is connected to a water pump, the exhaust is equipped with an induced draft fan, the hydrogen collection pipe is equipped with a blower and a post-processing system, and the hydrogen production system can be put into operation.

[0059] When the burner is ignited and the induced draft fan is turned on, the flue gas generates steam through the steam superheater 6 and the steam generator 8. In order to save fuel, when the furnace temperature does not reach 800°C, the superheated steam is discharged through the exhaust valve 20 in the upper right corner. When the furnace temperature reaches 800-850°C, the superheated steam inlet valve 21 is opened and the exhaust valve 20 is closed. The steam passes through the steam reheater 3 and enters the annular steam inlet chamber 18 to react with the carbon particles in the reaction section 17 to generate C+H2O→H2+CO-129.7KJ, CO+H2O→H2+CO2. H2 and CO2 rise from the gap between the first collecting tube 11 and the second collecting tube 12 to the top entrance of the gas collecting tube, are led out of the gas collecting tube, and are sent to the subsequent processing system by the Roche blower for dust removal, cooling, compression and other processes to provide users with pure hydrogen.

[0060] The char moves downward by gravity, and after the char reacts with the steam in the reaction section 17, a residue remains, which is discharged by a rotary seal valve.

[0061] To produce 100 kg of hydrogen, about 80×4.1855 KJ of heat is required, which can be obtained from the carbonization process.

[0062] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0063] In the description of the present invention, "plurality" means two or more.

[0064] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0065] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0066] The tubular reactor 1, the heating furnace device and other structures and operations of the biomass charcoal hydrogen production device 100 having the same according to the embodiment of the present invention are well known to ordinary technicians in the field and will not be described in detail here.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0068] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tubular reactor for a biomass charcoal hydrogen production device, characterized in that: include: A tube body, the tube body comprising a heating section located at the upper section of the tube body and a reaction section located at the lower section of the tube body, an annular closed steam inlet chamber is provided on the outer wall of the reaction section, a first through hole communicating with the reaction section is provided at a position corresponding to the steam inlet chamber, and a second through hole communicating with the steam inlet chamber is provided on the outer wall of the steam inlet chamber; A gas collecting pipe, wherein the gas collecting pipe is arranged in the pipe body and the axis of the gas collecting pipe is parallel to or coincides with the axis of the pipe body, a biomass charcoal channel is formed between the outer wall of the gas collecting pipe and the inner wall of the pipe body, and the gas collecting pipe comprises a first collecting pipe and a second collecting pipe, wherein the first collecting pipe is sleeved on the top of the second collecting pipe and a gap is formed between the first collecting pipe and the second collecting pipe for gas to pass through, Among them, the lower end surface of the first collecting tube is located at the connection between the reaction section and the heating section, the upper end surface of the first collecting tube is higher than the upper end surface of the second collecting tube in the vertical direction, the upper end surface of the first collecting tube is closed, and the end of the second collecting tube away from the first collecting tube is used for gas discharge.

2. The tubular reactor for biomass charcoal hydrogen production device according to claim 1, characterized in that: Also includes: A first positioning member and a second positioning member, the first positioning member includes a first upper positioning member and a first lower positioning member, the first collecting tube is arranged in the tube body through the first upper positioning member and the second collecting tube is arranged in the tube body through the first lower positioning member, the second positioning member is arranged between the inner wall of the first collecting tube and the outer wall of the second collecting tube so that the first collecting tube is sleeved in the second collecting tube.

3. The tubular reactor for a biomass charcoal hydrogen production device according to any one of claims 1-2, characterized in that: The steam inlet chamber is an annular steam inlet chamber surrounding the outer wall of the reaction section. There are a plurality of first through holes, and the plurality of first through holes are evenly arranged along the outer wall of the reaction section in the annular steam inlet chamber.

4. The tubular reactor for a biomass charcoal hydrogen production device according to claim 3, characterized in that: There are a plurality of the second through holes, and the plurality of the second through holes are evenly spaced and arranged on the outer wall of the annular steam inlet chamber, and each of the second through holes is provided with a steam inlet pipe.

5. The tubular reactor for biomass charcoal hydrogen production device according to claim 4, characterized in that: The diameter of the first through hole is smaller than the diameter of the second through hole.

6. The tubular reactor for a biomass charcoal hydrogen production device according to claim 3, characterized in that: It also includes a plurality of first fins, which are spaced apart between the heating section and the reaction section.

7. A heating furnace device for a biomass charcoal hydrogen production device, characterized in that: include: A heating furnace body, wherein the heating furnace body is arranged in a vertical direction and defines a heating furnace chamber in the heating furnace body, wherein the heating furnace body is provided with an upper through hole, a lower through hole and a smoke outlet, and the height of the upper through hole in the vertical direction is higher than the height of the lower through hole in the vertical direction; According to any one of claims 1 to 6, the tubular reactor for a biomass charcoal hydrogen production device passes through the heating furnace chamber along the upper through hole and passes through the lower through hole; A burner is arranged on the heating furnace body to heat the heating furnace chamber.

8. A biomass charcoal hydrogen production device, characterized in that: include: The heating furnace device for a biomass charcoal hydrogen production device according to claim 7; A steam generating device, the steam generating device is configured to generate steam, the steam generating device comprising a steam generator and a steam-water separator; A steam superheater, wherein the steam inlet side of the steam superheater is connected to the steam generator through the steam-water separator, and the steam generator and the steam superheater are both arranged in a waste heat chamber connected to the flue gas outlet; A steam reheater, wherein the steam inlet side of the steam reheater is connected to the steam outlet side of the steam superheater and the steam outlet side of the steam reheater is connected to the steam inlet chamber.

9. The biomass charcoal hydrogen production device according to claim 8, characterized in that: The steam reheater is a spiral tube coiled around the outer wall of the tube body, and the outer wall of the spiral tube is provided with a plurality of second fins.

10. The biomass charcoal hydrogen production device according to claim 8, characterized in that: The steam superheater has a drain valve and an inlet valve. When the temperature in the heating furnace room is lower than 800°C, the drain valve is opened and the inlet valve is closed; when the temperature in the heating furnace room is between 800°C and 850°C, the drain valve is closed and the inlet valve is opened.

Images