Reforming hydrogen production device

Abstract

The invention provides a reforming hydrogen production device, which comprises: a reforming reactor comprising a vaporizing chamber and a reaction chamber, the vaporizing chamber being arranged on one side of the reaction chamber; the reaction pipe comprises a feed port, a discharge port, a first pipeline located in the gasification chamber and a second pipeline located in the reaction chamber, the first end of the first pipeline is communicated with the feed port, the first end of the second pipeline is communicated with the second end of the first pipeline, and the second end of the second pipeline is communicated with the discharge port; the combustion chamber is adjacent to the reaction chamber and is provided with a fuel inlet and an air inlet; wherein a smoke inlet is formed in the side wall of the reaction chamber, a smoke communicating channel is arranged between the reaction chamber and the gasification chamber, and a smoke circulating channel is arranged between the gasification chamber and the combustion chamber. Through the technical scheme provided by the invention, the problems of more heat loss and larger energy loss of the reforming hydrogen production device in the related technology can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of reforming hydrogen production, and in particular to a reforming hydrogen production device. Background Art

[0002] With the development of industry, environmental pollution caused by the large-scale burning of fossil fuels and energy crises caused by excessive exploitation of fossil energy are becoming increasingly serious. The development of new energy has become an urgent problem to be solved on the road of human development. Hydrogen energy is a new energy source that is currently being studied. It has a high combustion calorific value, no pollution in combustion products, and is easy and diverse to obtain. It is an ideal clean energy. Methanol has the advantages of high hydrogen storage density and convenient storage and transportation. Therefore, methanol hydrogen storage and hydrogen production has gradually become a hot spot for hydrogen storage and transportation.

[0003] In the relevant technology, the methanol reforming hydrogen production reaction is an endothermic reaction, which generally includes a gasification stage and a catalyst reaction stage. The methanol reforming hydrogen production device is equipped with a thermal oil system as a heat source to provide heat to the methanol reforming hydrogen production device. The thermal oil is used as a heat carrier to provide heat for the reforming hydrogen production reaction.

[0004] However, the structure of the heat transfer oil system used in the related art is relatively complex, and the gasification stage and the catalyst reaction stage are heated separately, which leads to the problem of large heat loss and energy loss in the reforming hydrogen production device. Summary of the invention

[0005] The present invention provides a reforming hydrogen production device to solve the problems of large heat loss and large energy loss in the reforming hydrogen production device in the related art.

[0006] The present invention provides a reforming hydrogen production device, which comprises: a reforming reactor, comprising a gasification chamber and a reaction chamber, wherein the gasification chamber is arranged on one side of the reaction chamber; a reaction tube, comprising a feed port, a discharge port, a first pipeline located in the gasification chamber, and a second pipeline located in the reaction chamber, wherein the first end of the first pipeline is connected to the feed port, the first end of the second pipeline is connected to the second end of the first pipeline, and the second end of the second pipeline is connected to the discharge port; a combustion chamber, which is arranged adjacent to the reaction chamber, and the combustion chamber has a fuel inlet and an air inlet; wherein a flue gas inlet connected to the combustion chamber is arranged on the side wall of the reaction chamber, a flue gas communication channel is provided between the reaction chamber and the gasification chamber, and a flue gas circulation channel is provided between the gasification chamber and the combustion chamber.

[0007] Furthermore, the reforming reactor also includes a preheating chamber, a feed port and a discharge port are arranged on the side wall of the preheating chamber, the second end of the second pipeline is connected to the preheating chamber, and the preheating chamber is isolated from the flue gas connecting channel; the reaction tube also includes a third pipeline, the third pipeline is arranged in the preheating chamber, and the third pipeline is connected between the feed port and the first end of the first pipeline.

[0008] Furthermore, the reforming reactor also includes a partition arranged in the reaction chamber, the first end of the partition is connected to an end of the reaction chamber close to the gasification chamber, and there is a gap between the second end of the partition and an end of the reaction chamber away from the gasification chamber, the partition divides the reaction chamber into a first reaction zone and a second reaction zone, and the flue gas inlet is connected to the first reaction zone; the second pipeline includes a first pipe section located in the first reaction zone, a second pipe section located in the gap, and a third pipe section located in the second reaction zone, the first pipe section, the second pipe section and the third pipe section are connected in sequence, the first pipe section is connected to the second end of the first pipeline, and the third pipe section is connected to the discharge port.

[0009] Furthermore, a plurality of first baffles and a plurality of second baffles are arranged in the reaction chamber, and the plurality of first baffles and the plurality of second baffles are alternately arranged to form a curved flue gas flow passage in the reaction chamber, a first end of the first baffle is connected to the side wall of the reaction chamber, and a first gap exists between the second end of the first baffle and the partition, a first end of the second baffle is connected to the partition, and a second gap exists between the second end of the second baffle and the side wall of the reaction chamber, and a second pipeline is passed through the plurality of first baffles and the plurality of second baffles.

[0010] Furthermore, the reforming reactor also includes a mixing chamber, which is adjacent to the preheating chamber. Both the mixing chamber and the preheating chamber are located between the gasification chamber and the reaction chamber. The second end of the first pipeline is connected to the mixing chamber, and the mixing chamber is connected to the first end of the second pipeline.

[0011] Further, the reaction tube includes a plurality of first pipelines arranged in the gasification chamber, a plurality of second pipelines arranged in the reaction chamber, and a plurality of third pipelines arranged in the preheating chamber; and / or, the first pipelines and the third pipelines are both spiral coils.

[0012] Furthermore, a circulation fan is provided on the circulation channel.

[0013] Furthermore, the reforming hydrogen production device also includes an air pipeline and a flue gas reheat chamber. The flue gas reheat chamber is arranged on one side of the gasification chamber. A flue gas circulation channel is provided between the flue gas reheat chamber and the gasification chamber. A flue gas outlet is provided on the side wall of the flue gas reheat chamber. The air pipeline is connected to the air inlet for introducing air into the combustion chamber. Part of the air pipeline is arranged in the flue gas reheat chamber.

[0014] Furthermore, the combustion chamber includes a first combustion chamber and a second combustion chamber, and the first combustion chamber and the second combustion chamber are spaced apart along the length direction of the reaction chamber. The reforming hydrogen production device also includes a first sub-tube and a second sub-tube, and the first end of the first sub-tube is connected to the fuel inlet and the air inlet, and the second end of the first sub-tube is connected to the first combustion chamber, and the first end of the second sub-tube is connected to the fuel inlet and the air inlet, and the second end of the second sub-tube is connected to the second combustion chamber. An opening and closing valve is provided on the second sub-tube, and the flue gas circulation channel is connected to the first combustion chamber.

[0015] Furthermore, a temperature detection element is provided in the reaction chamber, and the temperature detection element is connected to the on-off valve signal to control the on-off valve to open or close.

[0016] Furthermore, the first pipeline and the second pipeline are both made of stainless steel; the feed port of the first pipeline is provided with a metering pump for transporting methanol water; the air inlet of the air pipeline is provided with an air intake fan for transporting air.

[0017] According to the technical solution of the present invention, the reforming hydrogen production device includes a reforming reactor, a reaction tube and a combustion chamber. The reforming reactor includes a gasification chamber and a reaction chamber. The combustion chamber and the reaction chamber are arranged adjacent to each other. The combustion chamber and the reaction chamber are connected through a flue gas inlet. In this way, fuel and air are transported into the combustion chamber by using a fuel inlet and an air inlet, and the fuel is burned in the combustion chamber. The high-temperature flue gas generated by the combustion is introduced into the reaction chamber through the flue gas inlet. The gasification chamber is arranged on one side of the reaction chamber. A first pipeline is arranged in the gasification chamber. A second pipeline is arranged in the reaction chamber. The first end of the first pipeline is connected to the feed port. The second end of the first pipeline is connected to the first end of the second pipeline. The second end of the second pipeline is connected to the discharge port. The feed port is used to introduce methanol water. The methanol water is gasified into methanol water vapor in the first pipeline. The gasified methanol water vapor is introduced into the second pipeline in the reaction chamber. The second pipeline has a catalyst that reacts with the methanol water vapor, so that the methanol water vapor can undergo a reforming reaction in the second pipeline, thereby generating a reformed gas containing hydrogen and carbon dioxide. The generated reformed gas is discharged through the discharge port, which is convenient for the reforming reaction in the reforming hydrogen production device. In order to ensure that the high-temperature flue gas generated by the combustion chamber can be recycled, a flue gas communication channel is provided between the reaction chamber and the gasification chamber, and then the high-temperature flue gas entering the reaction chamber through the flue gas inlet can enter the gasification chamber through the flue gas communication channel after heat exchange with the second pipeline, so that the high-temperature flue gas can provide heat to the first pipeline in the gasification chamber, and the liquid methanol water in the first pipeline can be gasified under the action of the high-temperature flue gas, which is convenient for the gasified methanol water vapor to react with the catalyst in the second pipeline, so that the high-temperature flue gas can be recycled. In order to further improve the heat utilization rate, there is a flue gas circulation channel between the combustion chamber and the gasification chamber, so that the high-temperature flue gas in the gasification chamber can enter the combustion chamber for recycling after heat exchange with the first pipeline. The circulation of high-temperature flue gas effectively reduces the heat loss of the reforming hydrogen production device, further improves the heat utilization rate of the reforming hydrogen production device, and improves the structural reliability and practicality of the reforming hydrogen production device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of a reforming hydrogen production device provided according to an embodiment of the present invention is shown;

[0020] Figure 2 A schematic structural diagram of a reforming hydrogen production device provided according to an embodiment of the present invention is shown.

[0021] The above drawings include the following reference numerals:

[0022] 10. Reforming reactor; 11. Gasification chamber; 12. Reaction chamber; 121. Flue gas inlet; 122. First reaction zone; 123. Second reaction zone; 124. First baffle; 125. Second baffle; 13. Flue gas communication channel; 14. Flue gas circulation channel; 15. Preheating chamber; 16. Partition; 17. Mixing chamber; 18. Circulation fan;

[0023] 20, reaction tube; 21, feed port; 22, discharge port; 23, first pipeline; 24, second pipeline; 241, first pipe section; 242, second pipe section; 243, third pipe section; 25, third pipeline; 253, opening and closing valve; 26, first sub-pipe; 27, second sub-pipe;

[0024] 30. Combustion chamber; 31. Fuel inlet; 32. Air inlet; 33. First combustion chamber; 34. Second combustion chamber;

[0025] 41. Air pipeline; 42. Smoke reheat chamber; 43. Smoke circulation channel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1 and Figure 2As shown, an embodiment of the present invention provides a reforming hydrogen production device, which includes a reforming reactor 10, a reaction tube 20 and a combustion chamber 30. The reforming reactor 10 includes a gasification chamber 11 and a reaction chamber 12. The gasification chamber 11 is arranged on one side of the reaction chamber 12. The reaction tube 20 includes a feed port 21, a discharge port 22, a first pipeline 23 located in the gasification chamber 11, and a second pipeline 24 located in the reaction chamber 12. The first end of the first pipeline 23 is connected to the feed port 21, and the second end of the first pipeline 24 is connected to the second end of the first pipeline 24. The first end of the second pipeline 24 is connected to the second end of the first pipeline 23, and the second end of the second pipeline 24 is connected to the discharge port 22. The combustion chamber 30 is arranged adjacent to the reaction chamber 12, and the combustion chamber 30 has a fuel inlet 31 and an air inlet 32. A flue gas inlet 121 connected to the combustion chamber 30 is arranged on the side wall of the reaction chamber 12, a flue gas connecting channel 13 is provided between the reaction chamber 12 and the gasification chamber 11, and a flue gas circulation channel 14 is provided between the gasification chamber 11 and the combustion chamber 30.

[0028] The reforming hydrogen production device provided in this embodiment is applied, and the reforming hydrogen production device includes a reforming reactor 10, a reaction tube 20 and a combustion chamber 30. The reforming reactor 10 includes a gasification chamber 11 and a reaction chamber 12. The combustion chamber 30 is arranged adjacent to the reaction chamber 12, and the combustion chamber 30 and the reaction chamber 12 are connected through a flue gas inlet 121. In this way, fuel and air are transported into the combustion chamber 30 by using the fuel inlet 31 and the air inlet 32, and the fuel is burned in the combustion chamber 30, and the high-temperature flue gas generated by the combustion is introduced into the reaction chamber 12 through the flue gas inlet 121. The gasification chamber 11 is arranged on one side of the reaction chamber 12, a first pipeline 23 is arranged in the gasification chamber 11, and a second pipeline 24 is arranged in the reaction chamber 12. The first end of the first pipeline 23 is connected to the feed port 21, the second end of the first pipeline 23 is connected to the first end of the second pipeline 24, and the second end of the second pipeline 24 is connected to the discharge port 22. The feed port 21 is used to introduce methanol water, which is gasified into methanol water vapor in the first pipeline 23. The gasified methanol water vapor is introduced into the second pipeline 24 in the reaction chamber 12. The second pipeline 24 has a catalyst that reacts with the methanol water vapor, so that the methanol water vapor can undergo a reforming reaction in the second pipeline 24 to generate a reformed gas containing hydrogen and carbon dioxide. The generated reformed gas is discharged through the discharge port 22 to facilitate the reforming reaction in the reforming hydrogen production device. In order to ensure that the high-temperature flue gas generated by the combustion chamber 30 can be recycled, a flue gas communication channel 13 is provided between the reaction chamber 12 and the gasification chamber 11, so that the high-temperature flue gas entering the reaction chamber 12 through the flue gas inlet 121 can enter the gasification chamber 11 through the flue gas communication channel 13 after heat exchange with the second pipeline 24, so that the high-temperature flue gas can provide heat to the first pipeline 23 in the gasification chamber 11, and the liquid methanol water in the first pipeline 23 can be gasified under the action of the high-temperature flue gas, so that the gasified methanol water vapor reacts with the catalyst in the second pipeline 24, so that the high-temperature flue gas can be recycled. In order to further improve the heat utilization rate, a flue gas circulation channel 14 is provided between the combustion chamber 30 and the gasification chamber 11, so that the high-temperature flue gas in the gasification chamber 11 can enter the combustion chamber 30 for recycling after heat exchange with the first pipeline 23. The circulation of high-temperature flue gas effectively reduces the heat loss of the reforming hydrogen production device, further improves the thermal utilization rate of the reforming hydrogen production device, and improves the structural reliability and practicality of the reforming hydrogen production device.

[0029] like Figure 1 and Figure 2As shown, the reforming reactor 10 also includes a preheating chamber 15, a feed port 21 and a discharge port 22 are arranged on the side wall of the preheating chamber 15, a second end of the second pipeline 24 is connected to the preheating chamber 15, the preheating chamber 15 is isolated from the flue gas connecting channel 13, and the reaction tube 20 also includes a third pipeline 25, the third pipeline 25 is arranged in the preheating chamber 15, and the third pipeline 25 is connected between the feed port 21 and the first end of the first pipeline 23. The reforming reactor 10 adopting the above structure is provided with a preheating chamber 15, and the feed port 21 and the discharge port 22 are both provided on the side wall of the preheating chamber 15. Since the reformed gas generated after the reaction in the second pipeline 24 has a certain temperature, the second end of the second pipeline 24 can be connected to the preheating chamber 15, and then the heat retained by the reformed gas generated after the reaction in the second pipeline 24 can be used to preheat the third pipeline 25 in the preheating chamber 15, so that the methanol water material entering through the feed port 21 can be preheated in the second pipeline 24, and then passed into the first pipeline 23 for gasification, so that the heat retained by the reformed gas can be used to preheat the methanol water in the first pipeline 23, thereby realizing heat circulation as much as possible and reducing heat loss.

[0030] like Figure 1 and Figure 2 As shown, the reforming reactor 10 also includes a partition 16 arranged in the reaction chamber 12, the first end of the partition 16 is connected to the end of the reaction chamber 12 close to the gasification chamber 11, and there is a gap between the second end of the partition 16 and the end of the reaction chamber 12 away from the gasification chamber 11. The partition 16 divides the reaction chamber 12 into a first reaction zone 122 and a second reaction zone 123, and the flue gas inlet 121 is connected to the first reaction zone 122. By adopting the above structure, a partition 16 is arranged in the reaction chamber 12, the first end of the partition 16 is connected to one end of the reaction chamber 12, and there is a gap between the second end of the partition 16 and a section of the reaction chamber 12 away from the gasification chamber 11, and the flue gas inlet 121 is connected to the first reaction zone 122. In this way, the partition 16 can be used to extend the residence time of the high-temperature flue gas in the reaction chamber 12, so that the methanol water vapor can fully carry out the reforming reaction in the second pipeline 24, and the flue gas inlet 121 is connected to the first reaction zone 122, so that the high-temperature flue gas can fully heat the second pipeline 24, so that the high-temperature flue gas can provide the temperature required for the reforming reaction between the methanol water vapor and the catalyst in the second pipeline 24, and ensure that the methanol water can fully react. This can not only improve the reaction efficiency, but also reduce energy loss.

[0031] like Figure 1As shown, the second pipeline 24 includes a first pipe section 241 located in the first reaction zone 122, a second pipe section 242 located in the interval, and a third pipe section 243 located in the second reaction zone 123. The first pipe section 241, the second pipe section 242, and the third pipe section 243 are connected in sequence, the first pipe section 241 is connected to the second end of the first pipeline 23, and the third pipe section 243 is connected to the discharge port 22. With the above structure, by setting the first pipe section 241, the second pipe section 242, and the third pipe section 243, the first pipe section 241 is set in the first reaction zone 122, the third pipe section 243 is set in the second reaction zone 123, and the second pipe section 242 is set in the interval, so as to increase the reaction time of methanol water vapor in the second pipeline 24, so as to improve the reaction efficiency of methanol water, ensure that sufficient reaction can be carried out, and ensure the structural reliability of the second pipeline 24.

[0032] It should be noted that, in the present application, the second pipeline 24 is a U-shaped pipe.

[0033] It should be noted that the second pipe section 242 can be freely expanded and contracted, and will not be damaged by thermal stress due to temperature difference, so that the thermal compensation performance of the second pipeline 24 is better and the size of the device can be reduced.

[0034] like Figure 1 and Figure 2 As shown, a plurality of first baffles 124 and a plurality of second baffles 125 are arranged in the reaction chamber 12, and the plurality of first baffles 124 and the plurality of second baffles 125 are alternately arranged to form a curved flue gas flow passage in the reaction chamber 12, a first end of the first baffle 124 is connected to the side wall of the reaction chamber 12, a first gap exists between the second end of the first baffle 124 and the partition 16, a first end of the second baffle 125 is connected to the partition 16, a second gap exists between the second end of the second baffle 125 and the side wall of the reaction chamber 12, and a second pipeline 24 is passed through the plurality of first baffles 124 and the plurality of second baffles 125. By adopting the above structure, multiple first baffles 124 and multiple second baffles 125 are arranged in the reaction chamber 12, and the multiple first baffles 124 and multiple second baffles 125 are alternately arranged to form a curved flue gas flow passage. This can not only ensure that the high-temperature flue gas can fully heat the second pipeline 24, but also enable the high-temperature flue gas to slowly flow from the first reaction zone 122 to the second reaction zone 123, so that under the action of the curved flue gas flow passage, the second pipeline 24 is heated, and the high-temperature flue gas travel distance and turbulence are increased, so that the temperature distribution is more uniform, and the structure in the reaction chamber 12 is simple.

[0035] like Figure 1 and Figure 2As shown, the reforming reactor 10 further includes a mixing chamber 17, which is disposed adjacent to the preheating chamber 15, and both the mixing chamber 17 and the preheating chamber 15 are located between the gasification chamber 11 and the reaction chamber 12, and the second end of the first pipeline 23 is connected to the mixing chamber 17, and the mixing chamber 17 is connected to the first end of the second pipeline 24. With the above structure, by providing the mixing chamber 17, it is ensured that the vaporized methanol water vapor can be introduced into the mixing chamber 17 for mixing and then can be uniformly introduced into the second pipeline 24 for reaction under the action of the mixing chamber 17, which can improve the reaction efficiency.

[0036] like Figure 2 As shown, the reaction tube 20 includes a plurality of first pipelines 23 disposed in the gasification chamber 11, a plurality of second pipelines 24 disposed in the reaction chamber 12, and a plurality of third pipelines 25 disposed in the preheating chamber 15. With the above structure, by providing a plurality of first pipelines 23, a plurality of second pipelines 24, and a plurality of third pipelines 25, the reaction efficiency of the reforming hydrogen production device can be improved.

[0037] It should be noted that after methanol water is gasified into methanol water vapor in the first pipeline 23, it first enters the mixing chamber 17 and then enters the second pipeline 24. This can ensure the uniformity of the temperature and flow rate of the methanol water vapor in multiple second pipelines 24.

[0038] In this embodiment, the first pipeline 23 and the third pipeline 25 are both spiral coils. With the above structure, by setting the first pipeline 23 and the third pipeline 25 as spiral coils, the methanol water can be fully heated in the third pipeline 25, and the methanol water vapor in the first pipeline 23 can be fully heated and gasified, ensuring the heating effect.

[0039] It should be noted that the first pipeline 23 and the third pipeline 25 are arranged in a multi-layer nested manner, which can increase the heat exchange area and facilitate heat exchange.

[0040] In this embodiment, a circulating fan 18 is provided on the flue gas circulation channel 14. By providing the circulating fan 18, the high-temperature flue gas in the gasification chamber 11 is conveniently passed into the combustion chamber 30 for reheating through the circulating fan 18 and the flue gas circulation channel 14, so as to realize the recycling of the high-temperature flue gas, which can improve the heat utilization rate and reduce energy loss.

[0041] like Figure 1As shown, the reforming hydrogen production device also includes an air pipeline 41 and a flue gas reheat chamber 42. The flue gas reheat chamber 42 is arranged on one side of the gasification chamber 11. A flue gas flow channel 43 is provided between the flue gas reheat chamber 42 and the gasification chamber 11. A flue gas outlet is provided on the side wall of the flue gas reheat chamber 42. The air pipeline 41 is connected to the air inlet 32 ​​for introducing air into the combustion chamber 30. Part of the air pipeline 41 is arranged in the flue gas reheat chamber 42. By adopting the above structure, an air pipe 41 and a flue gas heat recovery chamber 42 are provided, so that the flue gas heat recovery chamber 42 and the gasification chamber 11 are connected through the flue gas circulation channel 43, so that part of the high-temperature flue gas enters the flue gas heat recovery chamber 42 through the flue gas circulation channel 43, and the high-temperature flue gas in the flue gas heat recovery chamber 42 can be used to heat the air in the air pipe 41, so that it is easy to ensure that the air pipe 41 inputs air with a relatively high temperature. In this way, when the fuel is burned, only a small amount of energy needs to be provided to ensure that the fuel is burned to produce high-temperature flue gas, which can reduce energy loss, improve the thermal utilization rate of the reforming hydrogen production device, and reduce energy loss.

[0042] like Figure 1 As shown, the combustion chamber 30 includes a first combustion chamber 33 and a second combustion chamber 34, and the first combustion chamber 33 and the second combustion chamber 34 are spaced apart along the length direction of the reaction chamber 12. The reforming hydrogen production device also includes a first sub-tube 26 and a second sub-tube 27. The first ends of the first sub-tube 26 are connected to the fuel inlet 31 and the air inlet 32, the second ends of the first sub-tube 26 are connected to the first combustion chamber 33, the first ends of the second sub-tube 27 are connected to the fuel inlet 31 and the air inlet 32, the second ends of the second sub-tube 27 are connected to the second combustion chamber 34, and an opening and closing valve 253 is provided on the second sub-tube 27. The flue gas circulation channel 14 is connected to the first combustion chamber 33. The combustion chamber 30 of the above structure is adopted, and the first combustion chamber 33 and the second combustion chamber 34 are arranged at vertical intervals, and the flue gas circulation channel 14 is connected with the first combustion chamber 33, so that when the required heat is less, the on-off valve 253 is controlled to be closed, and the first sub-tube 26 is connected with the first combustion chamber 33 to ensure that the first combustion chamber 33 burns and provides high-temperature flue gas, which can ensure the reduction of production costs. When the required heat is more, the on-off valve 253 is controlled to be opened, and the second sub-tube 27 is connected with the second combustion chamber 34 to ensure that the first combustion chamber 33 and the second combustion chamber 34 burn together to provide high-temperature flue gas, ensuring sufficient heat so that methanol water vapor can fully carry out reforming reaction in the second pipeline 24, so as to facilitate the use of the second combustion chamber 34 and the second sub-tube 27 to realize the role of dynamic supplementary heating, and ensure more uniform heating, which can avoid the problem of catalyst deactivation caused by the concentration of cold and heat in the reforming reactor, thereby improving the service life of the reforming hydrogen production device and improving the overall performance of the reforming hydrogen production device.

[0043] It should be noted that the combustion chamber 30 is filled with an oxidation catalyst, and a room-temperature oxidation catalyst is filled near the inlet, so as to ensure that no other heat source is required to provide heat when the device is cold started.

[0044] In this embodiment, a temperature detection element is provided in the reaction chamber 12, and the temperature detection element is connected to the on-off valve 253 by signal to control the opening or closing of the on-off valve 253. With the above structure, the temperature detection element is connected to the on-off valve 253 by signal, so that the temperature in the reaction chamber 12 can be detected in real time by the temperature detection element, which can facilitate the control of the on-off valve 253 for opening and closing.

[0045] In this embodiment, the first pipeline 23 and the second pipeline 24 are both made of stainless steel. With the above structure, the first pipeline 23 and the second pipeline 24 are both made of stainless steel, which can facilitate heat conduction between the first pipeline 23 and the second pipeline 24, thereby facilitating heating, and can improve pressure and temperature resistance, facilitate processing and manufacturing, and make the overall structure simple and compact, which is suitable for small mobile hydrogen production and supply scenarios.

[0046] In this embodiment, a metering pump for transporting methanol water is provided at the feed inlet 21 of the first pipeline 23. With the above structure, the metering pump is provided to facilitate the transportation of methanol water to the first pipeline 23.

[0047] In this embodiment, an air intake fan for transporting air is provided at the air inlet of the air pipeline 41. With the above structure, the air intake fan is provided to facilitate transporting air to the air pipeline 41.

[0048] It should be noted that the reforming hydrogen production device is made of stainless steel as a whole and is formed in an integrated manner. The joints are sealed by welding, which can improve the pressure-bearing capacity of the entire device.

[0049] Specifically, the external fresh air enters the air pipe 41 under the action of the air intake fan, is preheated in the flue gas reheat chamber 42, and is mixed with the fuel, and then enters the combustion chamber 30, where a catalytic combustion reaction occurs to produce high-temperature flue gas. At the same time, most of the high-temperature flue gas in the gasification chamber 11 is driven by the circulation fan 18 to mix with the newly generated high-temperature flue gas in the first combustion chamber 33 and then enters the reaction chamber 12. After the high-temperature flue gas releases part of the heat in the reaction chamber 12, it enters the gasification chamber 11 to further cool down and release heat. A small part of the flue gas enters the flue gas reheat chamber 42, cools down and releases heat, and is discharged through the flue gas outlet. Most of the flue gas is driven by the circulation fan 18 to mix with the high-temperature flue gas generated in the combustion chamber 30 again for the next cycle. According to the flue gas temperature in the reaction chamber 12, the on-off valve 253 is controlled to be opened or closed to achieve dynamic supplementary heating of the reaction chamber 12.

[0050] Methanol water enters the third pipeline 25 under the action of the metering pump, and absorbs the heat released by the reforming gas in the preheating chamber 15, and the temperature rises. Then, the methanol water enters the vaporization chamber 11 to absorb the heat released by the flue gas for vaporization, and the temperature further rises. The superheated methanol water vapor enters the mixing chamber 17 for temperature-equalizing mixing, and then enters the second pipeline 24. Under the action of the reforming reaction catalyst, the methanol water vapor undergoes a chemical reaction to produce reforming gas, and the heat of the reaction is supplied by the high-temperature flue gas. The reforming gas produced then enters the preheating chamber 15 to cool down and release energy before being discharged.

[0051] The device provided by this embodiment has the following beneficial effects:

[0052] (1) A flue gas communication channel 13 is provided between the reaction chamber 12 and the gasification chamber 11, and the high-temperature flue gas entering the reaction chamber 12 through the flue gas inlet 121 enters the gasification chamber 11 through the flue gas communication channel 13, so that the high-temperature flue gas can provide heat to the first pipeline 23 in the gasification chamber 11, ensuring that the liquid methanol water in the first pipeline 23 can be gasified under the action of the high-temperature flue gas, so that the methanol water vapor reacts with the catalyst in the second pipeline 24, so that the high-temperature flue gas can be recycled. In order to further improve the heat utilization rate, a flue gas circulation channel 14 is provided between the combustion chamber 30 and the gasification chamber 11, so that the high-temperature flue gas in the gasification chamber 11 can enter the combustion chamber 30 for recycling. When the fuel is burning and the high-temperature flue gas is circulated, only a small amount of heat is needed to ensure the combustion of the fuel, so that the heat loss of the reforming hydrogen production device can be reduced;

[0053] (2) Since the reformed gas generated after the reaction in the second pipeline 24 has a certain temperature, the second end of the second pipeline 24 can be connected to the preheating chamber 15, and the heat retained by the reformed gas generated after the reaction in the second pipeline 24 can be used to preheat the third pipeline 25 in the preheating chamber 15, so that the methanol water material entering through the feed port 21 can be preheated in the second pipeline 24 and then passed into the first pipeline 23 for gasification. In this way, the heat retained by the reformed gas can be used to preheat the methanol water in the first pipeline 23, thereby realizing heat circulation as much as possible and reducing heat loss;

[0054] (3) By arranging a plurality of first baffles 124 and a plurality of second baffles 125 in the reaction chamber 12, the plurality of first baffles 124 and the plurality of second baffles 125 are alternately arranged to form a curved flue gas flow passage, which can ensure that the high-temperature flue gas can fully heat the second pipeline 24, and can also enable the high-temperature flue gas to slowly flow from the first reaction zone 122 to the second reaction zone 123, so that the second pipeline 24 is heated under the action of the curved flue gas flow passage, and the high-temperature flue gas travel distance and turbulence are increased, so that the temperature distribution is more uniform, and the structure in the reaction chamber 12 is simple.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0056] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0057] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0059] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reforming hydrogen production device, characterized in that: The reforming hydrogen production device comprises: A reforming reactor (10) comprises a gasification chamber (11) and a reaction chamber (12), wherein the gasification chamber (11) is arranged on one side of the reaction chamber (12); A reaction tube (20), comprising a feed port (21), a discharge port (22), a first pipeline (23) located in the gasification chamber (11), and a second pipeline (24) located in the reaction chamber (12), wherein a first end of the first pipeline (23) is connected to the feed port (21), a first end of the second pipeline (24) is connected to a second end of the first pipeline (23), and a second end of the second pipeline (24) is connected to the discharge port (22); A combustion chamber (30) is disposed adjacent to the reaction chamber (12), wherein the combustion chamber (30) has a fuel inlet (31) and an air inlet (32); A flue gas inlet (121) connected to the combustion chamber (30) is provided on the side wall of the reaction chamber (12), a flue gas communication channel (13) is provided between the reaction chamber (12) and the gasification chamber (11), and a flue gas circulation channel (14) is provided between the gasification chamber (11) and the combustion chamber (30).

2. The reforming hydrogen production device according to claim 1, characterized in that: The reforming reactor (10) further comprises a preheating chamber (15), the feed port (21) and the discharge port (22) being arranged on the side wall of the preheating chamber (15), the second end of the second pipeline (24) being connected to the preheating chamber (15), and the preheating chamber (15) being isolated from the flue gas communication channel (13); The reaction tube (20) further comprises a third pipeline (25), wherein the third pipeline (25) is arranged in the preheating chamber (15), and the third pipeline (25) is connected between the feed port (21) and the first end of the first pipeline (23).

3. The reforming hydrogen production device according to claim 2, characterized in that: The reforming reactor (10) further comprises a partition (16) arranged in the reaction chamber (12); a first end of the partition (16) is connected to an end of the reaction chamber (12) close to the gasification chamber (11); a second end of the partition (16) is spaced from an end of the reaction chamber (12) away from the gasification chamber (11); the partition (16) divides the reaction chamber (12) into a first reaction zone (122) and a second reaction zone (123); and the flue gas inlet (121) is connected to the first reaction zone (122); The second pipeline (24) includes a first pipe section (241) located in the first reaction zone (122), a second pipe section (242) located in the interval, and a third pipe section (243) located in the second reaction zone (123); the first pipe section (241), the second pipe section (242) and the third pipe section (243) are connected in sequence; the first pipe section (241) is connected to the second end of the first pipeline (23); and the third pipe section (243) is connected to the discharge port (22).

4. The reforming hydrogen production device according to claim 3, characterized in that: A plurality of first baffles (124) and a plurality of second baffles (125) are arranged in the reaction chamber (12); the plurality of first baffles (124) and the plurality of second baffles (125) are alternately arranged to form a curved flue gas flow passage in the reaction chamber (12); a first end of the first baffle (124) is connected to a side wall of the reaction chamber (12); a first gap exists between a second end of the first baffle (124) and the partition (16); a first end of the second baffle (125) is connected to the partition (16); a second gap exists between a second end of the second baffle (125) and the side wall of the reaction chamber (12); and the second pipeline (24) passes through the plurality of first baffles (124) and the plurality of second baffles (125).

5. The reforming hydrogen production device according to any one of claims 2 to 4, characterized in that: The reforming reactor (10) further comprises a mixing chamber (17), wherein the mixing chamber (17) is arranged adjacent to the preheating chamber (15), and the mixing chamber (17) and the preheating chamber (15) are both located between the gasification chamber (11) and the reaction chamber (12), the second end of the first pipeline (23) is connected to the mixing chamber (17), and the mixing chamber (17) is connected to the first end of the second pipeline (24).

6. The reforming hydrogen production device according to claim 2, characterized in that: The reaction tube (20) comprises a plurality of the first pipelines (23) arranged in the gasification chamber (11), a plurality of the second pipelines (24) arranged in the reaction chamber (12), and a plurality of the third pipelines (25) arranged in the preheating chamber (15); and / or, The first pipeline (23) and the third pipeline (25) are both spiral coils.

7. The reforming hydrogen production device according to claim 2, characterized in that: The smoke circulation channel (14) is provided with a circulation fan (18).

8. The reforming hydrogen production device according to claim 7, characterized in that: The reforming hydrogen production device also includes an air pipeline (41) and a flue gas reheat chamber (42); the flue gas reheat chamber (42) is arranged on one side of the gasification chamber (11); a flue gas circulation channel (43) is provided between the flue gas reheat chamber (42) and the gasification chamber (11); a flue gas outlet is provided on the side wall of the flue gas reheat chamber (42); the air pipeline (41) is connected to the air inlet (32) for introducing air into the combustion chamber (30); and part of the air pipeline (41) is provided in the flue gas reheat chamber (42).

9. The reforming hydrogen production device according to claim 8, characterized in that: The combustion chamber (30) includes a first combustion chamber (33) and a second combustion chamber (34), and the first combustion chamber (33) and the second combustion chamber (34) are arranged at intervals along the length direction of the reaction chamber (12). The reforming hydrogen production device also includes a first sub-tube (26) and a second sub-tube (27), and the first end of the first sub-tube (26) is connected to the fuel inlet (31) and the air inlet (32), and the second end of the first sub-tube (26) is connected to the first combustion chamber (33), and the first end of the second sub-tube (27) is connected to the fuel inlet (31) and the air inlet (32), and the second end of the second sub-tube (27) is connected to the second combustion chamber (34). The second sub-tube (27) is provided with an on-off valve (253), and the flue gas circulation channel (14) is connected to the first combustion chamber (33).

10. The reforming hydrogen production device according to claim 9, characterized in that: A temperature detection element is provided in the reaction chamber (12), and the temperature detection element is connected to the on-off valve (253) by signal so as to control the on-off valve (253) to open or close.

11. The reforming hydrogen production device according to claim 8, characterized in that: The first pipeline (23) and the second pipeline (24) are both made of stainless steel; The feed inlet (21) of the first pipeline (23) is provided with a metering pump for transporting methanol water; The air inlet of the air pipeline (41) is provided with an air intake fan for transporting air.

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