Solid-state hydrogen storage and hydrogen catalytic combustion self-heating system

Abstract

This application relates to the field of hydrogen storage and utilization technology, and in particular to a solid-state hydrogen storage and hydrogen catalytic combustion self-heating system, including a preheater, a mixer, a catalytic burner, a heat exchanger, and a solid-state hydrogen storage device. The first inlet ends of the preheater, mixer, catalytic burner, and heat exchanger are sequentially connected. The second outlet end of the heat exchanger is connected to the inlet end of the heat exchange medium chamber of the solid-state hydrogen storage device. The outlet end of the heat exchange medium chamber is connected to the second inlet end of the heat exchanger via a heating device. The gas outlet end of the hydrogen storage material chamber of the solid-state hydrogen storage device is connected to the mixer and the user end. The first outlet end of the heat exchanger is connected to the mixer and the preheater. Therefore, this system utilizes the heat generated by the catalytic combustion of hydrogen to supply the energy required for the solid-state hydrogen storage material to release hydrogen. Furthermore, a portion of the hydrogen released by the solid-state hydrogen storage material can continue to undergo catalytic combustion, while the other portion can be supplied to the user, achieving low-power hydrogen production from the solid-state hydrogen storage material and significantly reducing operating costs.

Description

Technical Field

[0001] This application relates to the field of hydrogen storage and utilization technology, and in particular to a solid hydrogen storage and hydrogen catalytic combustion self-heating system. Background Technology

[0002] With increasing global emphasis on reducing carbon emissions and addressing climate change, many regions are transitioning to low-carbon or zero-carbon energy systems. Hydrogen storage technology, as an emerging energy storage method, has received growing attention in recent years. Magnesium-based solid-state hydrogen storage technology is a promising area in hydrogen energy storage. It primarily utilizes the reaction of magnesium (Mg) or magnesium-based alloys with hydrogen to generate stable metal hydrides for hydrogen storage. Magnesium-based solid-state hydrogen storage materials offer advantages such as low cost, high hydrogen storage density, and ease of transportation.

[0003] However, some challenges remain in practical applications: the release of hydrogen from magnesium-based materials is an endothermic reaction, requiring the absorption of a large amount of heat; in many applications, the enormous heat consumption hinders its use. Releasing 1 kg of hydrogen requires more than 10 kWh of heat, and this figure is even greater when environmental heat loss is included, resulting in very high operating costs and seriously hindering its market promotion and application.

[0004] However, the combustion of 1 kg of hydrogen can generate 33 kWh of heat, and the catalytic combustion of hydrogen produces no open flame and is highly safe. Therefore, it is considered to couple magnesium-based materials with hydrogen catalytic combustion, recover the heat generated by hydrogen catalytic combustion, and supply the heat required by magnesium-based materials when releasing hydrogen. Thus, there is an urgent need to develop a system that can couple magnesium-based solid hydrogen storage structure and hydrogen catalytic combustion structure together. Utility Model Content

[0005] The purpose of this application is to provide a solid hydrogen storage and hydrogen catalytic combustion self-heating system, which to a certain extent solves the technical problem of the urgent need to develop a system that can couple magnesium-based solid hydrogen storage structure and hydrogen catalytic combustion structure together in the prior art.

[0006] This application provides a solid hydrogen storage and hydrogen catalytic combustion self-heating system, including: a preheater, a mixer, a catalytic burner, a heat exchanger, a solid hydrogen storage device, and a heating device; wherein, the solid hydrogen storage device forms a phase-separated hydrogen storage material chamber and a heat exchange medium chamber, and the hydrogen storage material chamber is provided with solid hydrogen storage material. The preheater, the mixer, the catalytic burner, and the first inlet end of the heat exchanger are sequentially connected. The second outlet end of the heat exchanger is connected to the inlet end of the heat exchange medium chamber, and the outlet end of the heat exchange medium chamber is connected to the second inlet end of the heat exchanger through the heating device. The gas outlet end of the hydrogen storage material chamber is connected to the mixer and the user end, respectively. The first outlet end of the heat exchanger is connected to the mixer and the preheater, respectively.

[0007] In the above technical solution, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a blower, and the blower is located on the side of the preheater away from the mixer and is connected to the preheater.

[0008] In any of the above technical solutions, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a first main conveying path, a flue gas three-way regulating valve, a first sub-conveyor path, and a second sub-conveyor path; wherein, one end of the first main conveying path is connected to the first outlet end of the heat exchanger, and the other end of the first main conveying path is connected to the first opening end of the flue gas three-way regulating valve. One end of the first sub-conveying path is connected to the preheater, and the other end of the first sub-conveying path is connected to the second opening end of the flue gas three-way regulating valve; one end of the second sub-conveying path is connected to the mixer, and the other end of the second sub-conveying path is connected to the third opening end of the flue gas three-way regulating valve.

[0009] In any of the above technical solutions, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a circulating fan, and the circulating fan is arranged on the second sub-transport path.

[0010] In any of the above technical solutions, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a first temperature transmitter, which is disposed on the catalytic burner and is used to detect the temperature of the catalytic burner itself.

[0011] In any of the above technical solutions, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a second temperature transmitter, which is located at the outlet end of the catalytic burner and is used to detect the temperature of the flue gas discharged through the catalytic burner.

[0012] In any of the above technical solutions, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes an online hydrogen detector, and the online hydrogen detector is located on the path connecting the mixer and the catalytic burner.

[0013] In any of the above technical solutions, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a second main conveying path, a hydrogen three-way regulating valve, a third sub-conveyor path, and a fourth sub-conveyor path; wherein, one end of the second main conveying path is connected to the gas outlet of the hydrogen storage material chamber, and the other end of the second main conveying path is connected to the first opening end of the hydrogen three-way regulating valve. One end of the third sub-conveying path is connected to the mixer, and the other end of the third sub-conveying path is connected to the second opening end of the hydrogen three-way regulating valve; one end of the fourth sub-conveying path is connected to the user end, and the other end of the third sub-conveying path is connected to the third opening end of the hydrogen three-way regulating valve.

[0014] In any of the above technical solutions, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a filter, and the filter is disposed on the second main conveying path.

[0015] In any of the above technical solutions, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a manual valve, and the manual valve is located on the second main delivery path.

[0016] In any of the above technical solutions, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a discharge path, and the discharge path is connected to the exhaust outlet of the preheater.

[0017] Compared with the prior art, the beneficial effects of this application are as follows: This application provides a novel system coupling solid-state hydrogen storage with hydrogen catalytic combustion. The system utilizes the heat generated by hydrogen catalytic combustion to supply the heat required for the solid-state hydrogen storage material to release hydrogen. When the solid-state hydrogen storage material releases hydrogen, a portion of the released hydrogen can continue to undergo catalytic combustion, while the other portion can be supplied to the client. This system can achieve low-power hydrogen production from solid-state hydrogen storage materials, such as magnesium-based materials, and significantly reduce operating costs.

[0018] It is evident that by using this system, the release of hydrogen from solid-state hydrogen storage materials can achieve self-heating. During the hydrogen release process, the client only needs to provide energy for the operation of the fan and other components, without having to consider the large amount of heat required for the release of hydrogen from the solid-state hydrogen storage materials. This saves a significant amount of operating costs and expands the application space and scenarios of solid-state hydrogen storage materials. In addition, a portion of the flue gas after heat exchange is reintroduced into the mixer to improve the uniformity of mixing with hydrogen, ensuring that the hydrogen concentration does not exceed the standard value and that hydrogen and other gases are in the optimal ratio, thereby helping to improve the catalytic combustion effect.

[0019] In addition, a temperature transmitter and a three-way regulating valve are installed. The two work together to ensure the adjustability of the system and ensure that the solid hydrogen storage material can continuously release hydrogen.

[0020] In addition, a circulating fan is installed to recycle the flue gas, ensuring smooth gas circulation. It can also regulate the hydrogen content in the system to keep it outside the explosive range, thus ensuring the safety of the system. Attached Figure Description To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a solid hydrogen storage and hydrogen catalytic combustion self-heating system provided in an embodiment of this application.

[0022] Figure label: 1-Preheater, 2-Mixer, 3-Catalytic burner, 4-Heat exchanger, 5-Solid hydrogen storage device, 6-Heating device, 7-Blower, 8-Inlet path, 9-First main conveying path, 10-Flue gas three-way regulating valve, 11-First sub-conveying path, 12-Second sub-conveying path, 13-Circulating fan, 14-First temperature transmitter, 15-Second temperature transmitter, 16-Online hydrogen detector, 17-Second main conveying path, 18-Hydrogen three-way regulating valve, 19-Third sub-conveying path, 20-Fourth sub-conveying path, 21-Filter, 22-Manual valve, 23-Discharge path. Detailed Implementation

[0023] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0024] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0025] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] The following reference Figure 1 This application describes a solid-state hydrogen storage and hydrogen catalytic combustion self-heating system according to some embodiments.

[0029] See Figure 1 As shown, an embodiment of this application provides a solid hydrogen storage and hydrogen catalytic combustion self-heating system, including: a preheater 1, a mixer 2, a catalytic burner 3, a heat exchanger 4, a solid hydrogen storage device 5, and a heating device 6; wherein, the solid hydrogen storage device 5 forms a phase-separated hydrogen storage material chamber and a heat exchange medium chamber, and the hydrogen storage material chamber is provided with a solid hydrogen storage material, such as a magnesium-based solid hydrogen storage material. Of course, it is not limited to this and can also be other types of solid hydrogen storage materials. The first inlet ends of preheater 1, mixer 2, catalytic burner 3, and heat exchanger 4 are connected in sequence. The second outlet end of heat exchanger 4 is connected to the inlet end of heat exchange medium chamber, and the outlet end of heat exchange medium chamber is connected to the second inlet end of heat exchanger 4 through heating device 6. The gas outlet end of hydrogen storage material chamber is connected to mixer 2 and user end respectively. The first outlet end of heat exchanger 4 is connected to mixer 2 and preheater 1 respectively.

[0030] Based on the structure described above, the working process of the solid hydrogen storage and hydrogen catalytic combustion self-heating system provided in this application is roughly as follows: In the initial stage of hydrogen release, the heating device 6 is used to preheat the material in the solid hydrogen storage device 5 to the hydrogen release temperature. The magnesium-based solid material will release hydrogen gas. The high-temperature hydrogen gas (about 350~400℃) is divided into two parts. One part is delivered to the user end, and the other part is delivered to the mixer 2. After being pressurized by blower 7, air enters preheater 1 and is preheated to about 350~400℃. Then it enters mixer 2 through pipeline. In mixer 2, high-temperature hydrogen, high-temperature air and flue gas after catalytic combustion heat exchange are mixed evenly. Then it enters catalytic burner 3. In catalytic burner 3, hydrogen and oxygen in the mixture undergo catalytic reaction, generating a large amount of heat and producing high-temperature flue gas at about 600℃. The high-temperature flue gas and the heat transfer oil exchange heat in the heat exchanger 4, and the temperature after the heat exchange is about 350~400℃. Part of the high-temperature flue gas is circulated into the mixer 2 through the circulating fan 13 on the second sub-conveying path 12, and the other part is transported to the preheater 1 through the first sub-conveying path 11. The flue gas entering the preheater 1 exchanges heat with the air, that is, heats the air, and then is discharged from the preheater 1.

[0031] Based on the above, this application provides a novel system coupling solid-state hydrogen storage and hydrogen catalytic combustion. This system utilizes the heat generated by hydrogen catalytic combustion to supply the heat required for the solid-state hydrogen storage material to release hydrogen. When the solid-state hydrogen storage material releases hydrogen, a portion of the released hydrogen can continue to undergo catalytic combustion, while the other portion can be supplied to the client. This system can achieve low-power hydrogen production from solid-state hydrogen storage materials, such as magnesium-based materials, with significantly reduced operating costs.

[0032] It is evident that by using this system, the release of hydrogen from solid-state hydrogen storage materials can achieve self-heating. During the hydrogen release process, the client only needs to provide energy for the operation of the fan and other components, without having to consider the large amount of heat required for the release of hydrogen from the solid-state hydrogen storage materials. This saves a significant amount of operating costs and expands the application space and scenarios of solid-state hydrogen storage materials. In addition, a portion of the flue gas after heat exchange is reintroduced into the mixer to improve the uniformity of mixing with hydrogen, ensuring that the hydrogen concentration does not exceed the standard value and that hydrogen and other gases are in the optimal ratio, thereby helping to improve the catalytic combustion effect.

[0033] It should be noted that the heat exchange medium of heat exchanger 4 is the aforementioned heat transfer oil. Of course, it is not limited to this. The heat exchange medium is not limited to heat transfer oil and can also be other types of heat exchange media, depending on the actual needs.

[0034] In this embodiment, preferably, as follows: Figure 1 As shown, the solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a blower 7, which is located on the side of the preheater 1 away from the mixer 2 and is connected to the preheater 1. As can be seen from the structure described above, external air is blown into the preheater 1 by the blower 7 to participate in the later combustion process. It can be seen that the blower 7 provides the power to transport air and speeds up the working efficiency of the system. Furthermore, preferably, the solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes an air intake path 8, which is connected to the first air intake of the preheater 1, and the blower 7 is installed on the air intake path 8.

[0035] In this embodiment, preferably, as follows: Figure 1 As shown, the solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a first main conveying path 9, a flue gas three-way regulating valve 10, a first sub-conveyor path 11 and a second sub-conveyor path 12; wherein, one end of the first main conveying path 9 is connected to the first outlet end of the heat exchanger 4, and the other end of the first main conveying path 9 is connected to the first opening end of the flue gas three-way regulating valve 10. One end of the first sub-conveying path 11 is connected to the preheater 1, and the other end of the first sub-conveying path 11 is connected to the second opening end of the flue gas three-way regulating valve 10; one end of the second sub-conveying path 12 is connected to the mixer 2, and the other end of the second sub-conveying path 12 is connected to the third opening end of the flue gas three-way regulating valve 10. As can be seen from the structure described above, the flue gas after heat exchange in heat exchanger 4 is transported to the first sub-transport path 11 and the second sub-transport path 12 via the first main transport path 9. A portion of the flue gas is transported to the preheater 1, and the other portion is transported to the mixer 2 to improve the uniformity of mixing with hydrogen, ensure that the hydrogen concentration does not exceed the standard value, and ensure that hydrogen and other gases are in the optimal ratio, thereby helping to improve the effect of catalytic combustion. Moreover, when the hydrogen concentration is detected to exceed the set value, the flue gas three-way regulating valve 10 can be adjusted to increase the circulating air volume and reduce the hydrogen concentration.

[0036] In this embodiment, preferably, as follows: Figure 1 As shown, the solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a circulating fan 13, which is located on the second sub-transport path 12. As can be seen from the structure described above, the main function of the circulating fan 13 is to circulate the flue gas throughout the system. In addition, the circulating fan 13 also has other functions, such as: on the one hand, it can reduce the hydrogen content in the mixer 2, keeping the hydrogen concentration in the mixer 2 below the explosion range to ensure the safety of the system; on the other hand, it can reduce the temperature rise of the catalytic burner 3 after combustion. If the circulation volume is small, the outlet temperature of the catalytic burner 3 will rise significantly, affecting the service life of the catalytic burner 3. In this embodiment, preferably, as follows: Figure 1 As shown, the solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a first temperature transmitter 14, which is installed on the catalytic burner 3 and is used to detect the temperature of the catalytic burner 3 itself. As can be seen from the structure described above, a first temperature transmitter 14 is installed on the catalytic burner 3. If the temperature of the catalytic burner 3 exceeds the set value, the flue gas three-way regulating valve 10 is adjusted to increase the circulating air volume in order to reduce the temperature of the catalytic burner 3. If the temperature of the catalytic burner 3 is lower than the set value, and adjusting the flue gas three-way regulating valve 10 to the minimum set flue gas circulation volume still fails to raise the temperature, the hydrogen three-way regulating valve 18 can be adjusted to increase the hydrogen circulation volume, thereby ensuring that the temperature of the catalytic burner 3 remains stable within the design temperature range. In this embodiment, preferably, as follows: Figure 1 As shown, the solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a second temperature transmitter 15, which is located at the outlet end of the catalytic burner 3 and is used to detect the temperature of the flue gas discharged through the catalytic burner 3.

[0037] As can be seen from the structure described above, a second temperature transmitter 15 is installed at the outlet end of the catalytic burner 3. If the temperature of the outlet flue gas exceeds the set value, the flue gas three-way regulating valve 10 is adjusted to increase the circulating air volume in order to reduce the temperature of the outlet flue gas. If the temperature of the outlet flue gas is lower than the set value, and the temperature still cannot be raised when the flue gas three-way regulating valve 10 is adjusted to the minimum set flue gas circulation volume, the hydrogen circulation volume can be increased by adjusting the hydrogen three-way regulating valve 18 to ensure that the temperature of the outlet flue gas remains stable within the design temperature range.

[0038] In this embodiment, preferably, as follows: Figure 1 As shown, the solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes an online hydrogen detector 16, which is located on the path connecting the mixer 2 and the catalytic burner 3. As can be seen from the structure described above, a hydrogen online detector 16 is installed after the mixer 2, which can detect the hydrogen concentration in the mixture. When the hydrogen concentration exceeds the set value, the flue gas three-way regulating valve 10 can be adjusted to increase the circulating air volume and reduce the hydrogen concentration. Furthermore, preferably, the hydrogen online detector 16 can be an online hydrogen concentration detector. Of course, it is not limited to an instrument for detecting concentration; it can also be a detection instrument with other functions, depending on actual needs.

[0039] In this embodiment, preferably, as follows: Figure 1As shown, the solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a second main conveying path 17, a hydrogen three-way regulating valve 18, a third sub-conveyor path 19, and a fourth sub-conveyor path 20; wherein, one end of the second main conveying path 17 is connected to the gas outlet of the hydrogen storage material chamber, and the other end of the second main conveying path 17 is connected to the first opening end of the hydrogen three-way regulating valve 18. One end of the third sub-conveying path 19 is connected to the mixer 2, and the other end of the third sub-conveying path 19 is connected to the second opening end of the hydrogen three-way regulating valve 18; one end of the fourth sub-conveying path 20 is connected to the user end, and the other end of the third sub-conveying path 19 is connected to the third opening end of the hydrogen three-way regulating valve 18. As described above, the hydrogen discharged from the solid hydrogen storage device 5 is transported via the second main transport path 17 to the third sub-transport path 19 and the fourth sub-transport path 20, respectively. This allows a portion of the hydrogen to be delivered to the user end, while the other portion returns to the mixer 2 to re-enter the cycle. The hydrogen three-way regulating valve 18 plays a regulating role. When the system's circulating heat is insufficient, the amount of hydrogen in the third transport path can be increased by adjusting the hydrogen three-way regulating valve 18, thereby ultimately ensuring that the solid hydrogen storage material can continuously release hydrogen. In this embodiment, preferably, as follows: Figure 1 As shown, the solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a filter 21, and the filter 21 is installed on the second main conveying path 17. As can be seen from the structure described above, filter 21 serves to filter impurities in hydrogen, ensuring the cleanliness of hydrogen and improving its purity. In this embodiment, preferably, as follows: Figure 1 As shown, the solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a manual valve 22, which is located on the second main conveying path 17. As described above, a manual valve 22 is installed in front of the hydrogen three-way regulating valve 18 to effectively control the opening or closing of the hydrogen delivery path, i.e., the second main delivery path 17, making it more reliable. Of course, this manual valve 22 can also be omitted, depending on actual needs. In this embodiment, preferably, as follows: Figure 1 As shown, the solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes an exhaust path 23, which is connected to the exhaust outlet of the preheater 1. As can be seen from the structure described above, the flue gas enters the preheater 1 and exchanges heat with the air, that is, after the air is heated, it is discharged to the designated area through the discharge path 23 to meet the usage requirements. It can be seen that the preheater 1 of this application has a heat exchange function. Such equipment is quite common and will not be described in detail here.

[0040] It should be noted that this discharge path 23 can also be omitted; the choice depends on the actual needs. In summary, the detailed working process of the solid-state hydrogen storage and hydrogen catalytic combustion self-heating system provided in this application is roughly as follows: In the initial stage of hydrogen release, the heating device 6 is used to preheat the material in the solid hydrogen storage device 5 to the hydrogen release temperature. Then, the manual valve 22 is opened, and the magnesium-based solid material will release hydrogen. The high-temperature hydrogen (around 350~400℃) is regulated by the hydrogen three-way regulating valve 18. Part of it is transported to the user end through the fourth sub-transmission path 20, and the other part is transported to the mixer 2 through the third sub-transmission path 19. After being pressurized by blower 7, air enters preheater 1 and is preheated to about 350~400℃. Then it enters mixer 2 through pipeline. In mixer 2, high-temperature hydrogen, high-temperature air and flue gas after catalytic combustion heat exchange are mixed evenly. Then it enters catalytic burner 3. In catalytic burner 3, hydrogen and oxygen in the mixture undergo catalytic reaction, generating a large amount of heat and producing high-temperature flue gas at about 600℃. The high-temperature flue gas and the heat transfer oil exchange heat in the heat exchanger 4, and the temperature after the heat exchange is about 350~400℃. Part of the high-temperature flue gas is circulated into the mixer 2 through the circulating fan 13 on the second sub-conveying path 12, and the other part is transported to the preheater 1 through the first sub-conveying path 11. The flue gas entering the preheater 1 exchanges heat with the air, that is, heats the air, and then is discharged from the preheater 1.

[0041] Based on the above, this application provides a novel system coupling solid-state hydrogen storage and hydrogen catalytic combustion. This system utilizes the heat generated by hydrogen catalytic combustion to supply the heat required for the solid-state hydrogen storage material to release hydrogen. When the solid-state hydrogen storage material releases hydrogen, a portion of the released hydrogen can continue to undergo catalytic combustion, while the other portion can be supplied to the client. This system can achieve low-power hydrogen production from solid-state hydrogen storage materials, such as magnesium-based materials, with significantly reduced operating costs.

[0042] It is evident that by using this system, the release of hydrogen from solid hydrogen storage materials can achieve self-heating. During the hydrogen release process, the client only needs to provide energy for the operation of the fan and other components, without having to consider the large amount of heat required for the release of hydrogen from the solid hydrogen storage materials. This saves a significant amount of operating costs and expands the application space and scenarios of solid hydrogen storage materials.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A solid-state hydrogen storage and hydrogen catalytic combustion self-heating system, characterized in that, include: The device includes a preheater, a mixer, a catalytic burner, a heat exchanger, a solid hydrogen storage device, and a heating device; wherein the solid hydrogen storage device comprises a phase-separated hydrogen storage material chamber and a heat exchange medium chamber, and the hydrogen storage material chamber is provided with solid hydrogen storage material. The preheater, the mixer, the catalytic burner, and the first inlet end of the heat exchanger are sequentially connected. The second outlet end of the heat exchanger is connected to the inlet end of the heat exchange medium chamber, and the outlet end of the heat exchange medium chamber is connected to the second inlet end of the heat exchanger through the heating device. The gas outlet end of the hydrogen storage material chamber is connected to the mixer and the user end, respectively. The first outlet end of the heat exchanger is connected to the mixer and the preheater, respectively.

2. The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system according to claim 1, characterized in that, The solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a blower, which is located on the side of the preheater away from the mixer and is connected to the preheater.

3. The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system according to claim 1, characterized in that, The solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a first main conveying path, a flue gas three-way regulating valve, a first sub-conveyor path, and a second sub-conveyor path; wherein, one end of the first main conveying path is connected to the first outlet end of the heat exchanger, and the other end of the first main conveying path is connected to the first opening end of the flue gas three-way regulating valve. One end of the first sub-conveying path is connected to the preheater, and the other end of the first sub-conveying path is connected to the second opening end of the flue gas three-way regulating valve; one end of the second sub-conveying path is connected to the mixer, and the other end of the second sub-conveying path is connected to the third opening end of the flue gas three-way regulating valve.

4. The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system according to claim 3, characterized in that, The solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a circulating fan, and the circulating fan is located on the second sub-transport path.

5. The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system according to claim 1, characterized in that, The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system further includes a first temperature transmitter, which is installed on the catalytic burner and is used to detect the temperature of the catalytic burner itself.

6. The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system according to claim 1, characterized in that, The solid hydrogen storage and hydrogen catalytic combustion self-heating system further includes a second temperature transmitter, which is located at the outlet end of the catalytic burner and is used to detect the temperature of the flue gas discharged through the catalytic burner.

7. The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system according to claim 1, characterized in that, The solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes an online hydrogen detector, which is located on the path connecting the mixer and the catalytic burner.

8. The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system according to claim 1, characterized in that, The solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a second main conveying path, a hydrogen three-way regulating valve, a third sub-conveyor path, and a fourth sub-conveyor path; wherein, one end of the second main conveying path is connected to the gas outlet of the hydrogen storage material chamber, and the other end of the second main conveying path is connected to the first opening end of the hydrogen three-way regulating valve. One end of the third sub-conveying path is connected to the mixer, and the other end of the third sub-conveying path is connected to the second opening end of the hydrogen three-way regulating valve; one end of the fourth sub-conveying path is connected to the user end, and the other end of the third sub-conveying path is connected to the third opening end of the hydrogen three-way regulating valve.

9. The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system according to claim 8, characterized in that, The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system further includes a filter, and the filter is disposed on the second main conveying path; and / or The solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a manual valve, which is located on the second main delivery path.

10. The solid-state hydrogen storage and hydrogen catalytic combustion self-heating system according to any one of claims 1 to 9, characterized in that, The solid hydrogen storage and hydrogen catalytic combustion self-heating system also includes a discharge path, and the discharge path is connected to the exhaust outlet of the preheater.

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