A hydrogen production device

Abstract

The present invention discloses a hydrogen production device. The hydrogen production device includes, for example: a shell having a storage space inside; the storage space includes: a liquid storage chamber and a hydrogen storage chamber, and a partition is provided between the chambers; at least one hydrogen production tube, a hydrogen production catalyst is provided inside, and the liquid storage chamber and the hydrogen storage chamber are connected; the hydrogen production device also includes: a heating chamber, and / or an electric heater; the heating chamber is arranged between the liquid storage chamber and the hydrogen storage chamber, and the electric heater is arranged in the liquid storage chamber and / or the hydrogen production tube. The present invention can effectively solve the technical problems of low hydrogen production efficiency, complex structure of hydrogen production device, and high steam heat consumption.

Description

Technical Field

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

[0002] Energy is the most important factor in human economic activities. Hydrogen energy, as a recognized clean energy, is emerging as a low-carbon and zero-carbon energy in today's society. As a new energy fuel, hydrogen has shown a very broad and potential market. How to prepare and meet this inevitable development from the perspective of planning and technology will be a very important matter. Choosing advanced technology and reasonable methods to produce and apply hydrogen to obtain the greatest economic and environmental benefits is the future development trend.

[0003] At present, methanol is widely used to produce hydrogen. Methanol hydrogen production refers to the process of producing hydrogen under certain temperature and pressure conditions, using methanol as a raw material, through the action of a hydrogen production catalyst, through a conversion reaction of methanol vapor. In the prior art, the method of reusing the mixed gas after the reaction of methanol vapor and a hydrogen production catalyst with air by combustion catalysis effectively reduces the loss of resources. However, when the existing equipment uses tail gas combustion to produce hydrogen, it is necessary to first produce steam through a steam generating device, and then pass the steam into a hydrogen reaction device to react with a hydrogen production catalyst to produce hydrogen. Its structure is complex, and it is necessary to separately set up a steam generating device, a hydrogen reaction device, and a connecting pipeline between the two, etc., and the overall efficiency is low. Summary of the invention

[0004] Therefore, an embodiment of the present invention provides a hydrogen production device, which can effectively solve the technical problems of low hydrogen production efficiency, complex structure of the hydrogen production device, and high steam heat consumption.

[0005] A hydrogen production device provided by the present invention comprises: a shell having a storage space inside; the storage space comprises: a liquid storage chamber and a hydrogen storage chamber, and a partition is provided between the chambers; at least one hydrogen production tube, a hydrogen production catalyst is provided inside, and the liquid storage chamber and the hydrogen storage chamber are connected; the hydrogen production device also comprises a heating chamber, and / or an electric heater; the heating chamber is arranged between the liquid storage chamber and the hydrogen storage chamber, and the electric heater is arranged in the liquid storage chamber and / or the hydrogen production tube.

[0006] Furthermore, in one embodiment of the present invention, the heating chamber includes an exhaust gas containing chamber and / or a hot exhaust gas heating chamber, wherein the exhaust gas containing chamber includes: a first containing chamber, located in the containing space close to the liquid containing chamber; a second containing chamber, located between the first containing chamber and the hydrogen containing chamber; wherein the exhaust gas inlet is arranged in the first containing chamber; a combustion catalyst is filled in the second containing chamber; and the hot exhaust gas heating chamber is arranged between the liquid containing chamber and the hydrogen containing chamber, and is provided with a hot exhaust gas inlet and an exhaust gas outlet.

[0007] In the exhaust gas containing chamber, the heat generated by the reaction of the exhaust gas and the combustion catalyst can be used to heat the hydrogen production tube, and / or the hot exhaust gas is introduced into the hot exhaust gas heating chamber to achieve heating of the hydrogen production tube; the first containing chamber can accommodate exhaust gas, and the exhaust gas enters the first containing chamber from the exhaust gas, and after being evenly distributed in the first containing chamber, it can enter the second containing chamber to react with the combustion catalyst to generate heat. At this time, after the exhaust gas enters the second containing chamber, it can fully react with the combustion catalyst, thereby improving the utilization rate of the exhaust gas.

[0008] Furthermore, in one embodiment of the present invention, the accommodating space further includes: an overheating chamber, which is arranged between the second accommodating chamber and the hydrogen accommodating chamber; and a heat storage component capable of storing heat is arranged in the overheating chamber.

[0009] The heat storage component is arranged inside the superheat chamber. After the exhaust gas after combustion enters the superheat chamber, the heat of the exhaust gas after combustion is absorbed by the heat storage component. The heat absorbed by the heat storage component can continuously heat the hydrogen production pipe, thereby improving the hydrogen production efficiency.

[0010] Furthermore, in one embodiment of the present invention, a partition is also provided between the first accommodating chamber, the second accommodating chamber and the superheating chamber, and an exhaust gas circulation hole is provided on the partition, and the exhaust gas can flow in the accommodating space through the exhaust gas circulation hole.

[0011] The tail gas can flow between the first accommodating chamber, the second accommodating chamber and the superheating chamber inside the hydrogen production device. The provision of the partition allows the tail gas to be evenly distributed inside the accommodating space, so that the heat after combustion can be fully absorbed.

[0012] Furthermore, in one embodiment of the present invention, a liquid isolation space is provided between the hydrogen production catalyst and the liquid containing cavity.

[0013] The provision of the liquid isolation space can effectively ensure that, when liquid is added to the liquid containing chamber, the liquid will not directly contact the hydrogen production catalyst and will not affect the efficiency of the hydrogen production catalyst; further, the steam generated by the liquid enters the hydrogen production pipe, thereby ensuring the steam efficiency generated by the hydrogen production device.

[0014] Furthermore, in one embodiment of the present invention, the heat storage component is a heat storage block and / or a heat storage ball, and the heat storage component is filled between at least one of the hydrogen production pipes and the shell.

[0015] The heat storage block or the heat storage ball is filled in the superheating chamber, and a gap through which exhaust gas can flow is formed between the heat storage balls or the heat storage blocks. The heat storage block or the heat storage ball can absorb the heat of the exhaust gas after combustion.

[0016] Furthermore, in one embodiment of the present invention, the hydrogen production pipe includes: a steam pipe connected to the liquid containing chamber; and a hydrogen pipe connected to the hydrogen containing chamber; wherein the hydrogen pipe is located at the upper end of the steam pipe in the vertical direction.

[0017] The hydrogen pipe is connected to the hydrogen containing chamber, and the steam pipe is connected to the liquid containing chamber, which ensures that the hydrogen production pipe can directly generate hydrogen from steam in the hydrogen production device, and the one-piece molding structure of the hydrogen production device saves the space occupied by the hydrogen production device.

[0018] Furthermore, in one embodiment of the present invention, a porous partition is provided between the steam pipe and the hydrogen pipe.

[0019] The porous partition can achieve the purpose of steam flowing from the steam pipe to the hydrogen pipe, and further enables the steam to react with the hydrogen production catalyst in the hydrogen pipe to produce hydrogen.

[0020] Furthermore, in one embodiment of the present invention, the steam pipe and the hydrogen pipe are integrally formed, or the steam pipe and the hydrogen pipe are detachably connected.

[0021] The steam pipe and the hydrogen pipe are integrally formed, which saves installation space for the hydrogen production pipe and enhances the utilization rate of the internal space of the hydrogen production device. The detachable connection between the steam pipe and the hydrogen pipe enables the purpose of replacing the steam pipe or the hydrogen pipe separately.

[0022] Furthermore, in one embodiment of the present invention, it also includes: a liquid level device, which is arranged outside the shell, one end of which is connected to the hydrogen containing chamber, and the other end of which is connected to the liquid containing chamber.

[0023] The liquid level device can detect the amount of liquid stored in the liquid containing chamber inside the hydrogen production device, and make the liquid in the hydrogen production device less than 30L, thereby achieving a liquid storage chamber with a liquid storage capacity smaller than that of national regulations, without the need for reporting.

[0024] In summary, after adopting the technical solution of the present invention, the following technical effects can be achieved:

[0025] i) The hydrogen production catalyst is placed in the hydrogen production tube, and can directly generate hydrogen in the hydrogen production tube, saving reaction space, effectively reducing the manufacturing cost of the device and the complexity of the structure, making the overall structure more streamlined;

[0026] ii) The setting of the electric heater effectively ensures the temperature required for the reaction between the steam and the hydrogen production catalyst, and effectively enhances the hydrogen generation rate;

[0027] iii) Through the reaction between the combustion catalyst and the exhaust gas, the recycling of resources can be achieved, and the generated heat can further heat the hydrogen production pipe, ensuring the temperature required for the reaction between the steam in the hydrogen production pipe and the hydrogen production catalyst, and the exhaust gas after combustion will not pollute the environment after being discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 A schematic structural diagram of a hydrogen production device 100 provided in an embodiment of the present invention;

[0030] Figure 2 for Figure 1 The cross-sectional view shown;

[0031] Figure 3 for Figure 1 A schematic diagram of the internal structure of the hydrogen production device 100;

[0032] Figure 4 for Figure 3 Schematic diagram of some structures in ;

[0033] Figure 5 for Figure 2 Schematic diagram of some structures in ;

[0034] Figure 6 for Figure 5 A schematic diagram of the structure of the second flange 9;

[0035] Figure 7 for Figure 3 A schematic structural diagram of the first upper flange 71;

[0036] Figure 8 This is a schematic structural diagram of a hydrogen production tube 4 provided in the second embodiment of the present invention.

[0037] Fig. 9 A schematic diagram of the structure of a pipeline system 90 provided in the third embodiment;

[0038] Fig.10 for Fig. 9 Another structural schematic diagram from another angle shown;

[0039] Fig.11 This is a schematic structural diagram of a hydrogen production device 100 provided in a third embodiment of the present invention.

[0040] Description of main component symbols:

[0041] 100 is a hydrogen production device; 1 is a liquid containing chamber; 11 is a liquid replenishing port; 12 is a liquid drain port; 13 is a first electric heater; 14 is a liquid isolation space; 2 is a hydrogen containing chamber; 21 is a hydrogen connecting port; 22 is a liquid level device connecting port; 3 is an exhaust gas containing chamber; 31 is a first containing chamber; 311 is an exhaust gas inlet; 32 is a second containing chamber; 321 is a combustion catalyst inlet; 4 is a hydrogen production pipe; 41 is a steam pipe; 411 is a liquid inlet; 412 is a steam outlet; 42 is a hydrogen pipe; 421 is a steam inlet; 422 is a hydrogen outlet; 423 is a fin; 5 is an overheating chamber; 51 is a heat storage component inlet; 6 is an exhaust gas discharge chamber; 61 is an exhaust gas outlet; 7 is a first flange; 71 is a first upper flange; 711 is an electric heating pipe port; 72 is a first lower flange; 8 is a partition; 9 is a second flange; 91 is a second upper flange; 911 is a hydrogen production pipe connecting port ; 92 is the second lower flange; 921 is the opening; 10 is the shell; 20 is the liquid level device; 201 is the control valve; 30 is the support seat; 40 is the pipeline; 401 is the hydrogen pipeline; 401a is the first hydrogen pipeline; 401b is the second hydrogen pipeline; 401c is the third hydrogen pipeline; 401d is the fourth hydrogen pipeline; 4011 is the safety pipeline; 4012 is the pressure transmitter; 4013 is the pressure gauge; 4014 is The first flow meter; 4015 is a safety valve; 402 is an exhaust gas pipeline; 402a is an exhaust gas delivery pipe; 4021 is a second flow meter; 4022 is a solenoid valve; 403 is a pump inlet pipe; 403a is a first liquid pipeline; 403b is a second liquid pipeline; 404 is a pump outlet pipe; 405 is a liquid inlet pump; 406 is an air pipeline; 50 is a plate heat exchanger; 60 is an air cooler; 70 is a support part; 90 is a piping system. DETAILED DESCRIPTION

[0042] 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, not all of the embodiments. 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.

[0043] [First embodiment]

[0044] See also Figure 1 and Figure 2 The embodiment of the present invention provides a hydrogen production device 100. The hydrogen production device 100 includes, for example, a shell 10 and a support seat 30. The shell 10 has a storage space (not shown in the figure) inside, and the storage space is provided with a liquid storage chamber 1 and a hydrogen storage chamber 2 in sequence; wherein the liquid storage chamber 1 is used to store liquid required for hydrogen production, and the hydrogen storage chamber 2 is used to store hydrogen generated by the hydrogen production device 100.

[0045] Furthermore, the hydrogen production device 100 further includes: a heating chamber, which is arranged between the liquid containing chamber 1 and the hydrogen containing chamber 2 .

[0046] Preferably, the heating chamber includes: an exhaust gas containing chamber 3, and / or a hot exhaust gas heating chamber (not shown in the figure); the hot exhaust gas heating chamber is arranged between the liquid containing chamber 1 and the hydrogen containing chamber 2, and is provided with a hot exhaust gas inlet (not shown in the figure) and an exhaust gas outlet (not shown in the figure).

[0047] Preferably, the combustion catalyst is filled in the exhaust gas containing chamber 3 ; the shell 10 is provided with an exhaust gas inlet 311 and a combustion catalyst filling port 321 at a position corresponding to the exhaust gas containing chamber 3 .

[0048] Furthermore, the exhaust gas containing chamber 3 includes: a first containing chamber 31 and a second containing chamber 32, the first containing chamber 31 is located on the side close to the liquid containing chamber 1, and the second containing chamber 32 is located between the first containing chamber 31 and the hydrogen containing chamber 2; the exhaust gas inlet 311 is opened in the first containing chamber 31, and the combustion catalyst inlet 321 is opened in the second containing chamber; the combustion catalyst is filled in the second containing chamber 321.

[0049] Preferably, the support seat 30 is installed on the lower side of the shell 10 to support the hydrogen production device 100. Specifically, the support seat 30 is sleeved on the outside of the liquid holding chamber 1, and a second flange 9 is provided between the support seat 30 and the shell 10. The support seat 30 is detachably installed on the shell 10 through the second flange 9.

[0050] Preferably, the accommodation space further includes: an overheating chamber 5 and an exhaust gas discharge chamber 6; wherein the exhaust gas discharge chamber 6 is arranged on a side close to the hydrogen accommodation chamber 2, and the overheating chamber 5 is arranged between the exhaust gas discharge chamber 6 and the second accommodation chamber 32; wherein the overheating chamber 5 is provided with a heat storage component filling port 51, and the exhaust gas discharge chamber 6 is provided with an exhaust gas outlet 61. Further, the overheating chamber 5 is filled with a heat storage component (not shown in the figure), and the heat storage component is some materials with strong heat storage capacity, and the heat storage component can be a heat storage ball and / or a heat storage block.

[0051] Preferably, the hot exhaust gas heating chamber can replace the tail gas containing chamber 3. In this case, the tail gas inlet 311 is the hot exhaust gas inlet, and the tail gas outlet 61 is the exhaust gas outlet. The hot exhaust gas can be introduced from the exhaust gas inlet 311 and then discharged from the exhaust gas outlet 61. Of course, the hot exhaust gas heating chamber can be set together with the exhaust gas containing chamber 3. In this case, the hot exhaust gas is introduced from the hot exhaust gas inlet, and the exhaust gas is introduced from the exhaust gas inlet 311. After the hot exhaust gas and the exhaust gas complete heating of the hydrogen production device 100, they are discharged from the exhaust gas outlet 61 together, or the hydrogen production device 100 opens the exhaust gas outlet to discharge, the hot exhaust gas is discharged from the exhaust gas outlet, and the exhaust gas is discharged from the exhaust gas outlet 61. Further, a heat storage component is filled in the hot exhaust gas heating chamber, and the heat storage component absorbs heat in the hot exhaust gas, and the absorbed heat is used to heat the hydrogen production device 100.

[0052] Preferably, see Figure 3 and Figure 4 A partition 8 is provided between the first accommodating chamber 31, the second accommodating chamber 32, the overheating chamber 5 and the exhaust gas discharge chamber 6. A plurality of exhaust gas flow holes (not shown in the figure) are provided on the surface of the partition 8. The exhaust gas can flow from the first accommodating chamber 31 through the partition 8 to the exhaust gas discharge chamber 6, and then be discharged from the exhaust gas outlet 61.

[0053] Furthermore, after the exhaust gas enters the first accommodating chamber 31, it passes through the partition 8 to make the exhaust gas evenly distributed in the first accommodating chamber 31, and then enters the second accommodating chamber 32 through the exhaust gas flow holes on the surface of the partition 8. The exhaust gas can react with the combustion catalyst to generate a large amount of heat. Further, the exhaust gas passes through the exhaust gas flow holes on the surface of the partition 8 and enters the overheating chamber 5. After the heat storage component absorbs the heat of the exhaust gas, it prevents the exhaust gas from flowing too fast and causing most of the heat to not be fully absorbed by heat exchange. By setting up a heat storage component, heat can be stored in the heat storage component, and then the heat can be used to heat the steam or hydrogen production catalyst in the hydrogen production pipe 4 through the heat storage component. Further, after the exhaust gas enters the exhaust gas discharge chamber 6, the exhaust gas with lower heat is discharged from the exhaust gas outlet 61.

[0054] Preferably, at least one hydrogen production tube 4 is provided in the accommodating space, and the hydrogen production tube 4 is filled with a hydrogen production catalyst (not shown in the figure). The hydrogen production tube 4 is connected between the liquid accommodating chamber 1 and the hydrogen accommodating chamber 2, and passes through the first accommodating chamber 31, the second accommodating chamber 32, the superheating chamber 5 and the exhaust gas discharge chamber 6; the liquid accommodating chamber 1 is provided with a first electric heater 13, and the first electric heater 13 heats the liquid in the liquid accommodating chamber 1 so that it can generate steam, and the steam can react with the hydrogen production catalyst in the hydrogen production tube 4 to generate hydrogen.

[0055] Preferably, the heating chamber can be replaced with an electric heater; the electric heater is arranged in the liquid containing chamber 1 and / or in the hydrogen production tube 4, and is used to heat the liquid in the liquid containing chamber 1, or to heat the steam inside the hydrogen production tube 4. Of course, it can act on the liquid containing chamber 1 and the hydrogen production tube 4 together; further, the heating chamber and the electric heater are arranged together, and act on the liquid containing chamber 1 and the hydrogen production tube 4 together.

[0056] Preferably, the heat released by the combustion catalyst and the exhaust gas in the second accommodating space 32 heats the hydrogen production tube 4, so that the temperature in the hydrogen production tube 4 can reach the temperature required for the reaction between the steam and the hydrogen production catalyst; the heat storage component filled in the superheating chamber 5 maintains the temperature of the hydrogen production tube 4, reduces the heat dissipation of the hydrogen production tube 4, and effectively ensures the continuity of the reaction between the steam and the hydrogen production catalyst in the hydrogen production tube 4.

[0057] Preferably, the hydrogen production tube 4 is provided with fins 423 around the outer side at the position of the superheating chamber 5. The arrangement of the fins 423 enhances the heat exchange area of ​​the hydrogen production tube 4, effectively improves the heat absorption efficiency of the hydrogen production tube 4, and enhances the rate at which the steam in the hydrogen production tube 4 reacts with the hydrogen production catalyst to generate hydrogen.

[0058] Preferably, the hydrogen production device 100 further includes: a liquid level meter 20, which is disposed outside the housing 10 and connects the hydrogen containing chamber 2 with the liquid containing chamber 1, and is used to detect the liquid level of the liquid in the hydrogen production device 100. .

[0059] Specifically, the hydrogen containing chamber 2 is provided with a liquid level device connection port 22, and the liquid containing chamber 1 is provided with a drain port 12. The liquid level device 20 is connected to the liquid level device connection port 22 at one end of a pipeline and is connected to the drain port 12 at the other end. A control valve 201 is provided on the pipeline connecting the liquid level device 20 to the hydrogen containing chamber 2, which can effectively prevent the loss of steam.

[0060] Furthermore, the liquid level device 20 is also provided with an antifreeze drain port (not shown in the figure) and an activation and reduction pipeline (not shown in the figure); when the hydrogen production device 100 is not in use, or after the device is used in an area with lower temperature, the liquid inside the hydrogen production device 100 can be discharged, specifically, it can be discharged through the antifreeze drain port to prevent the hydrogen production device 100 from being damaged due to the cooling of the liquid; after the hydrogen production device 100 is used for a long time, the activity of the catalyst of the hydrogen production device 100 will be reduced or even lose its activity. Through the activation and reduction pipeline, the catalyst inside the hydrogen production device 100 will be activated again, further improving the activity of the catalyst and extending its service life.

[0061] Preferably, see Figure 5 and Figure 6 The second flange 9 includes: a second upper flange 91 and a second lower flange 92; wherein, the second upper flange 91 is fixed to the lower end of the shell 10, and the second lower flange 92 is connected to the upper end of the support seat 30; the second upper flange 91 and the second lower flange 92 can be detachably installed by bolt connection, thereby further achieving a detachable connection between the support seat 30 and the shell 10.

[0062] Furthermore, the detachable connection between the second upper flange 91 and the second lower flange 92 enables the addition or replacement of the hydrogen production catalyst inside the hydrogen production tube 4 , and the filling, replacement or discharge of the liquid in the liquid containing chamber 1 .

[0063] Preferably, the second upper flange 91 has a hydrogen production pipe connection port 911 connected to the hydrogen production pipe 4 on its surface, and the hydrogen production pipe 4 is connected to the liquid receiving chamber 1 through the hydrogen production pipe connection port 911; the second lower flange 92 is set as an annular structure, and an opening 921 is set inside it; a liquid isolation space 14 is formed between the opening 921, the liquid receiving chamber 1 and the second upper flange 91. The liquid isolation space 14 can control the liquid storage capacity of the liquid in the hydrogen production device 100, so that the liquid in the hydrogen production device 100 is less than 30L, and the liquid storage capacity is less than the national standard liquid storage chamber, and no reporting is required; the size of the hydrogen production device 100 is reduced as much as possible to reduce the floor space, and in addition, its capacity can be reduced, so that its capacity pressure is reduced, and the number of regular inspections is reduced.

[0064] Specifically, since the hydrogen production catalyst is arranged in the hydrogen production tube 4, if the liquid content in the liquid holding chamber 1 is high, the liquid will enter the hydrogen production tube 4 and contact with the hydrogen production catalyst, thereby affecting the hydrogen production efficiency; therefore, the setting of the liquid isolation space 14 increases the liquid holding space, reduces the contact probability between the liquid and the hydrogen production catalyst, can effectively ensure the hydrogen production effect of the reaction between the hydrogen production catalyst and steam, and improves the efficiency of hydrogen generation.

[0065] Preferably, see Figure 2 , Figure 3 and Figure 7 The hydrogen production device 100 also includes a first flange 7 and a second electric heater (not shown in the figure), which are arranged at the upper end of the shell 10 and connected to the hydrogen containing chamber 2; specifically, the first flange 7 includes: a first upper flange 71 and a first lower flange 72; the first lower flange 72 is fixedly connected to the hydrogen containing chamber 2, and the first upper flange 71 is detachably connected to the first lower flange 72 by bolts.

[0066] Furthermore, a plurality of electric heating nozzles 711 are provided on the surface of the first upper flange 71 , and the electric heating tube of the second electric heater is disposed inside the hydrogen production tube 4 through the electric heating nozzles 711 to heat the steam in the hydrogen production tube 4 .

[0067] Preferably, the second electric heater, the first electric heater 13 and the combustion catalyst can cooperate with each other to heat the steam in the hydrogen production tube 4; specifically, a temperature sensor (not shown in the figure) can be provided in the hydrogen production device 100, and the temperature sensor can detect and display the temperature of the steam inside the hydrogen production tube 4; the first electric heater 13 is started to heat the liquid inside the liquid holding chamber 1 to generate steam, and the steam enters the hydrogen production tube 4; the tail gas is introduced to react with the combustion catalyst in the second holding chamber 32, and the heat generated further heats the hydrogen production tube 4; the second electric heater is started to further heat the inside of the hydrogen production tube 4; during the heating process, if the temperature is lower than the temperature required for the reaction of the steam and the hydrogen production catalyst, the power of the second electric heater is increased, or the amount of tail gas introduced is increased; if the temperature is higher than the temperature required for the reaction of the steam and the hydrogen production catalyst, the power of the second electric heater is reduced or suspended, or the introduction of tail gas is suspended; thereby achieving the purpose of regulating the temperature and maximizing the hydrogen production efficiency.

[0068] [Second embodiment]

[0069] See also Figure 8 In view of the improvement of the hydrogen production tube 4 in the first embodiment, the second embodiment of the present invention provides a hydrogen production tube 4. The hydrogen production tube 4 includes, for example, a steam tube 41 and a hydrogen tube 42; wherein the steam tube 41 has a liquid inlet 411 at one end and a steam outlet 412 at the other end; and the hydrogen tube 42 has a hydrogen outlet 422 at one end and a steam inlet 421 at the other end.

[0070] Preferably, the hydrogen production pipe 4 can be placed vertically, horizontally, or at other angles; when placed vertically, the hydrogen pipe 42 is located above the steam pipe 41 in the vertical direction, and the steam pipe 41 can be connected to the hydrogen pipe 42; when the steam pipe 41 is connected to the hydrogen pipe 42, the corresponding steam inlet 421 is connected to the steam outlet 412; when placed horizontally or at other angles, the steam pipe 41 is butted against the hydrogen pipe 42; a partition (not shown in the figure) is provided between the steam pipe 41 and the hydrogen pipe 42, and the partition is provided with a plurality of steam flow openings, and the steam pipe 41 and the hydrogen pipe 42 are connected to each other. The gas pipe 42 can be set as an integral whole, or the steam pipe 41 and the hydrogen pipe 42 can be detachably connected, which is achieved by a detachable flange (not shown in the figure); when the steam pipe 41 and the hydrogen pipe 42 are set as an integral whole, the partition can be directly welded to the inner wall of the hydrogen production pipe 4, or, by setting a bracket, the partition is fixed to the inside of the hydrogen production pipe 4, or, fixed to the inside of the hydrogen production pipe 4 by threads; when a threaded connection is adopted, a thread groove is provided on the inner wall of the hydrogen production pipe 4, and a corresponding thread is provided on the outer side of the partition, and the connection between the partition and the hydrogen production pipe 4 is achieved by the thread and the thread groove.

[0071] Furthermore, when the partition is configured as a detachable flange, one end of the flange is connected to the hydrogen pipe 42, and the other end of the flange is connected to the steam pipe 41. The steam pipe 41 can be connected to the hydrogen pipe 42 through the flange, thereby satisfying the detachable connection between the steam pipe 41 and the hydrogen pipe 42, and achieving the purpose of replacing the steam pipe 41 or the hydrogen pipe 42 separately when the hydrogen production pipe 4 is damaged.

[0072] Preferably, the hydrogen pipe 42 is filled with a hydrogen production catalyst (not shown in the figure), and the hydrogen production catalyst can react with steam in the hydrogen pipe 42 to produce hydrogen, which then flows out from the hydrogen outlet 422. Furthermore, the second electric heater is arranged in the steam pipe 41 and the hydrogen pipe 42, and is used to heat and generate steam, or to reach the temperature required for the reaction of steam and the hydrogen production catalyst.

[0073] Preferably, fins 423 are further wound around the outside of the hydrogen pipe 42. The fins 423 can increase the heat exchange area of ​​the hydrogen pipe 42 and enhance the heat absorption efficiency of the hydrogen pipe 42, thereby further improving the hydrogen production efficiency.

[0074] [Third embodiment]

[0075] The third embodiment of the present invention further provides a piping system 90 based on the hydrogen production device 100, and the piping system 90 includes: a pipeline 40, a plate heat exchanger 50, an air cooler 60 and a support portion 70; wherein the pipeline 40 is connected to the hydrogen production device 100, the plate heat exchanger 50 and the air cooler 60 are arranged on the pipeline 40, and the support portion 70 is arranged below the pipeline 40, the plate heat exchanger 50 and the air cooler 60, for supporting the hydrogen production device 100.

[0076] Preferably, see Figure 9-11 The pipeline 40 includes: a hydrogen pipeline 401, an exhaust pipeline 402, an inlet pump pipe 403, an outlet pump pipe 404 and an air pipeline 406; wherein one end of the hydrogen pipeline 401 is connected to the hydrogen connection port 21, and the other end is connected to the first hydrogen pipeline 401a, and a safety pipeline 4011 and a safety valve 4015 are provided between the hydrogen pipeline 401 and the first hydrogen pipeline 401a; if the steam pressure inside the hydrogen production device 100 is too high, part of the steam can be allowed to enter the safety pipeline 4011 by adjusting the valve. 011, it is discharged through the safety valve 4015, thereby reducing the steam pressure in the hydrogen production device 100; further, the first hydrogen pipeline 401a is connected to the plate heat exchanger 50, the plate heat exchanger 50 can absorb and preserve the heat of the high-temperature hydrogen, the plate heat exchanger 50 is connected to one end of the air cooler 60 through the second hydrogen pipeline 401b, the other end of the air cooler 60 is connected to the third hydrogen pipeline 401c, and the third hydrogen pipeline 401c is connected to the fourth hydrogen pipeline 401d.

[0077] Specifically, the hydrogen produced by the hydrogen production device 100 enters the hydrogen pipeline 401 from the hydrogen connection port 21, and then passes through the first hydrogen pipeline 401a, the plate heat exchanger 50, the second hydrogen pipeline 401b, the air cooler 60 and the third hydrogen pipeline 401c in sequence, and finally discharged from the fourth hydrogen pipeline 401d. A pressure transmitter 4012 and a pressure gauge 4013 are provided between the hydrogen pipeline 401 and the first hydrogen pipeline 401a, which are used to detect the pressure of the hydrogen in the hydrogen pipeline 401; a first flow meter 4014 is provided between the third hydrogen pipeline 401c and the fourth hydrogen pipeline 401d, which is used to detect the flow of hydrogen in the pipeline.

[0078] Preferably, the tail gas pipeline 402 is connected to the hydrogen production device 100 via the tail gas delivery pipe 402a, and is used to transport the tail gas to the inside of the hydrogen production device 100; wherein a second flow meter 4021 and a solenoid valve 4022 are provided between the tail gas pipeline 402 and the tail gas delivery pipe 402a, which are used to detect and control the flow of the tail gas in the pipe.

[0079] Preferably, the pump inlet pipe 403 is connected to the liquid inlet pump 405, and then connected to the plate heat exchanger 50 through the first liquid pipeline 403a; the liquid flows into the liquid inlet pump 405 through the pump inlet pipe 403, and then the liquid is transported to the plate heat exchanger 50 by the liquid inlet pump 405, which can absorb the heat stored in the plate heat exchanger 50, and finally the liquid is transported to the hydrogen production device 100 through the second liquid pipeline 403b.

[0080] Furthermore, the pump outlet pipe 404 is arranged between the liquid inlet pump 405 and the first liquid pipeline 403a, and the pump inlet pipe 403 and the pump outlet pipe 404 are located on both sides of the liquid inlet pump 405; if the amount of liquid in the hydrogen production device 100 is large, it can be discharged outward through the pump outlet pipe 404.

[0081] Preferably, the air duct 406 is connected to the exhaust gas delivery pipe 402a, and air is introduced into the exhaust gas, which can reduce the hydrogen content in the exhaust gas and prevent the hydrogen content from being too high and causing harm to the exhaust gas from reacting with the combustion catalyst.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydrogen production device, characterized in that: include: A shell body having a receiving space therein; The containing space includes: a liquid containing chamber and a hydrogen containing chamber, and a partition is provided between the chambers; at least one hydrogen production tube, which is provided with a hydrogen production catalyst and communicates with the liquid containing chamber and the hydrogen containing chamber; The hydrogen production device further comprises: a heating chamber, and / or an electric heater; the heating chamber is arranged between the liquid containing chamber and the hydrogen containing chamber, and the electric heater is arranged in the liquid containing chamber and / or the hydrogen production tube; The heating chamber includes: an exhaust gas receiving chamber, and / or a hot exhaust gas heating chamber; Wherein, the tail gas receiving chamber comprises: A first accommodating chamber, located in the accommodating space and close to the liquid accommodating chamber; A second accommodating chamber, located between the first accommodating chamber and the hydrogen accommodating chamber; The tail gas inlet is arranged in the first containing chamber; the combustion catalyst is filled in the second containing chamber; The hot exhaust gas heating chamber is arranged between the liquid containing chamber and the hydrogen containing chamber, and is provided with a hot exhaust gas inlet and an exhaust gas outlet; The hydrogen production pipe comprises: a steam pipe connected to the liquid containing chamber; A hydrogen pipe connected to the hydrogen containing chamber; Wherein, the hydrogen pipe is located at the upper end of the steam pipe in the vertical direction.

2. The hydrogen production device according to claim 1, characterized in that: The accommodating space also includes: The superheating chamber is arranged between the second containing chamber and the hydrogen containing chamber; and a heat storage component capable of storing heat is arranged in the superheating chamber.

3. The hydrogen production device according to claim 2, characterized in that: A partition is also provided between the first accommodating chamber, the second accommodating chamber and the superheating chamber. The partition is provided with an exhaust gas circulation hole, and the exhaust gas can flow in the accommodating space through the exhaust gas circulation hole.

4. The hydrogen production device according to claim 3, characterized in that: A liquid isolation space is provided between the hydrogen production catalyst and the liquid containing cavity.

5. The hydrogen production device according to claim 2, characterized in that: The heat storage component is a heat storage block and / or a heat storage ball, and the heat storage component is filled between the hydrogen production pipe and the shell.

6. The hydrogen production device according to claim 1, characterized in that: A porous partition is provided between the steam pipe and the hydrogen pipe.

7. The hydrogen production device according to claim 6, characterized in that: The steam pipe and the hydrogen pipe are integrally formed, or the steam pipe and the hydrogen pipe are detachably connected.

8. The hydrogen production device according to any one of claims 1 to 7, characterized in that: Also includes: The liquid level device is arranged outside the shell, one end of which is connected to the hydrogen containing chamber, and the other end of which is connected to the liquid containing chamber.

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