A hydrogen supply system and hydrogen supply method based on alloy hydrogen storage

Abstract

The present invention discloses a hydrogen supply system and method based on alloy hydrogen storage, including: a hydrogen supply component including a hydrogen container, a reactor body and at least one alloy part for cooperating with hydrogen release and hydrogen storage, at least one hydrogen channel is provided inside the reactor body, the hydrogen channel is connected to the inside of the hydrogen container, a heating component includes a buffer tank and a burner, the buffer tank has an air inlet end and an air outlet end, the air inlet end of the buffer tank is connected to the hydrogen channel, and is used to add hydrogen to the buffer tank, the burner is connected to the reactor body, and the inside of the burner is connected to the air outlet end of the buffer tank, and is used to supply hydrogen to undergo catalytic combustion reaction and supply the heat generated by the reaction to the alloy part, so as to cooperate with the activation and hydrogen release of the hydrogen container, and the refrigeration component is connected to the burner, and is used to convert the heat generated by the burner into refrigeration capacity and act on the alloy part, so as to cooperate with the cooling and hydrogen storage of the buffer tank. The present invention can solve the problems of limited use scenarios and poor applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage, transportation and supply, and in particular to a hydrogen supply system based on alloy hydrogen storage. Background Art

[0002] Alloy hydrogen storage has low pressure, high hydrogen purity and easy operation. It can greatly improve the safety, reliability and maintenance convenience of hydrogen energy utilization, and is the most promising hydrogen storage method.

[0003] Since the thermal conductivity of hydrogen storage alloys is very small, traditional alloy hydrogen storage tanks generally use external immersion or internal heat exchange fin tubes for heat exchange. The large distance between the alloy beds leads to large thermal resistance, which easily causes uneven temperature distribution in the tank, affecting the charging and discharging performance of the alloy hydrogen storage tank. The hydrogen storage alloy undergoes an endothermic reaction when releasing hydrogen and an exothermic reaction when charging hydrogen. If the required heat cannot be provided or removed in time, the charging and discharging reactions will gradually slow down or even stop. For example, the Chinese invention patent with application number: CN201910060601 proposes a temperature-compensated alloy hydrogen storage and hydrogen supply system, and the hydrogen supply device needs to be equipped with an external circulating water system for heat exchange. For example, the Chinese invention patent with application number: CN202010386531 proposes an offshore alloy hydrogen storage hydrogen supply system and method with self-circulating heat. When charging hydrogen, the refrigeration unit needs to be started to provide cooling water. The above-mentioned hydrogen supply device needs to be connected to a high-power power, circulating water system or refrigeration unit, has a complex structure, high energy consumption, and is limited in use in occasions that do not meet the requirements of the external environment.

[0004] Therefore, there is an urgent need for a hydrogen supply system and a hydrogen supply method based on alloy hydrogen storage to solve the problem in the prior art that external heat exchange or refrigeration equipment is required to operate the hydrogen supply system, resulting in limited usage scenarios and poor applicability. Summary of the invention

[0005] In view of this, it is necessary to provide a hydrogen supply system and a hydrogen supply method based on alloy hydrogen storage to solve the technical problems in the prior art that the operation of the hydrogen supply system requires external heat exchange or refrigeration equipment, resulting in limited usage scenarios and poor applicability.

[0006] In order to achieve the above technical objectives, the technical solution of the present invention provides a hydrogen supply system based on alloy hydrogen storage, comprising:

[0007] A hydrogen supply assembly comprises a hydrogen container, a reactor body and at least one alloy part, wherein at least one hydrogen channel is provided inside the reactor body, and the hydrogen channel is connected to the interior of the hydrogen container, and the alloy part is built into the hydrogen channel for cooperating with hydrogen release and hydrogen storage;

[0008] A heating component, comprising a buffer tank and a burner, wherein the buffer tank has an air inlet end and an air outlet end, wherein the air inlet end of the buffer tank is connected to the hydrogen channel and is used to add hydrogen to the buffer tank, wherein the burner is connected to the reactor body, and the interior of the burner is connected to the air outlet end of the buffer tank and is used to supply hydrogen to undergo a catalytic combustion reaction and supply the heat generated by the reaction to the alloy part to cooperate with the activation and dehydrogenation of the hydrogen container;

[0009] A refrigeration component is connected to the burner and is used to convert the heat generated by the burner into refrigeration and act on the alloy part to cooperate with the buffer tank to cool and store hydrogen.

[0010] Furthermore, the refrigeration component includes a thermoacoustic refrigeration component and a cold storage component. The interior of the thermoacoustic refrigeration component is connected to the interior of the burner and is used to convert the heat generated in the burner into cooling capacity. The cold storage component is connected to the thermoacoustic refrigeration component and is used to store the cooling capacity converted by the thermoacoustic refrigeration component.

[0011] Furthermore, the refrigeration assembly also includes an air inlet pipe, an air outlet pipe and a first valve body. The air inlet pipe is connected to the interior of the cold storage component and is used to introduce air into the interior of the cold storage component. Both ends of the air outlet pipe are respectively connected to the reactor body and the cold storage component and are used to introduce cooling capacity into the reactor body to cooperate with the alloy component to store hydrogen. The first valve body is arranged on the air outlet pipe and connected to the air outlet pipe.

[0012] Furthermore, the heating component also includes a heat exchanger, which has an air inlet end and an air outlet end. The air inlet end of the heat exchanger is connected to the thermoacoustic cooling element, and the air outlet end is connected to the reactor body. It is used to cool the high-temperature exhaust gas flowing out of the thermoacoustic cooling element and pass it into the reactor body to cooperate with the activation and dehydrogenation of the alloy part.

[0013] Furthermore, a plurality of temperature control channels are provided inside the reactor body, and the plurality of temperature control channels are evenly distributed along the circumference of the hydrogen channel, and the temperature control channels are connected to the gas outlet end and the gas outlet pipe of the heat exchange element, and are used to heat or cool the hydrogen channel.

[0014] Furthermore, the refrigeration component also includes a temperature sensor, and the temperature sensor is connected to the cold storage component.

[0015] Furthermore, a pressure relief port is provided on the buffer tank, and the heating component further comprises a pressure sensor, and the pressure sensor is connected to the buffer tank for monitoring the internal pressure of the buffer tank.

[0016] Furthermore, the alloy member includes a plurality of hydrogen storage alloys, and the plurality of hydrogen storage alloys are built into the hydrogen channel at intervals along the hydrogen channel.

[0017] Furthermore, the hydrogen supply assembly also includes a second valve body, which is disposed between the hydrogen container and the hydrogen channel and connected to the hydrogen container.

[0018] The technical solution of the present invention also provides a hydrogen supply method based on alloy hydrogen storage, which is performed using the hydrogen supply system based on alloy hydrogen storage as described in any of the above items, comprising the steps of:

[0019] S1. The hydrogen in the buffer tank is first introduced into the burner, mixed with the air entering the burner, and a flameless combustion reaction occurs under the action of the catalyst. The high-temperature exhaust gas after combustion is introduced into the thermoacoustic refrigeration component;

[0020] S2. The thermoacoustic refrigeration component converts the high-temperature exhaust gas into cooling capacity and stores it in the cold storage component, and passes the cooled exhaust gas into the temperature control channel, using the temperature control channel to provide heating to heat the alloy parts in the hydrogen channel;

[0021] S3. After reaching the appropriate temperature, the second valve body is opened, and the hydrogen in the hydrogen container is released and flows through the hydrogen channel, and cooperates with the alloy parts in the hydrogen channel to complete the activation and release of hydrogen. At the same time, the hydrogen enters the buffer tank along the hydrogen channel to replenish the buffer tank with hydrogen for combustion reaction in time;

[0022] S4. After the storage limit of the cold storage component is reached, the thermoacoustic refrigeration component stops converting the high-temperature exhaust gas into cooling capacity. The high-temperature exhaust gas is cooled by the heat exchange component and then passed into the temperature control channel, which also provides heating capacity to heat the alloy components in the hydrogen channel.

[0023] S5. When storing hydrogen, the buffer tank stops supplying gas, the burner stops producing high-temperature tail gas, and air is introduced into the reactor body through the outlet pipe of the cold storage part to store hydrogen and cool the alloy parts.

[0024] Compared with the prior art, the beneficial effects of the present invention include: the alloy part is built into the hydrogen channel of the reactor body, the hydrogen channel is connected to the inside of the hydrogen container, the hydrogen released by the buffer tank undergoes a catalytic combustion reaction in the burner to produce high-temperature tail gas, the high-temperature tail gas is first cooled by the refrigeration component and then introduced into the reactor body, the alloy part is heated to cooperate with the dehydrogenation activation of hydrogen, and the refrigeration component can convert the heating capacity into refrigeration capacity and store it for cooling the alloy part during hydrogen storage. Compared with the prior art, it is not necessary to cool the heat generated by the catalytic combustion reaction through external equipment to achieve hydrogen dehydrogenation, and it is not necessary to provide refrigeration capacity for the alloy part. Instead, hydrogen catalytic combustion is used as a heat source, and the refrigeration component is used to achieve heat conversion, storage and cold source provision. The hydrogen supply device does not need an external heat exchange circulating water system, and does not need to be configured with a refrigeration unit. The overall structure is compact, the energy consumption is low, the energy utilization rate is high, and the application range is wide. It can solve the technical problems of limited use scenarios and poor applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a hydrogen supply system based on alloy hydrogen storage provided by an embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure in which the hydrogen storage alloy provided by an embodiment of the present invention is connected to a reactor body. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0028] See also Figure 1 and Figure 2The present invention provides a hydrogen supply system based on alloy hydrogen storage, comprising: a hydrogen supply component 1, a heating component 2 and a refrigeration component 3, the hydrogen supply component 1 comprises a hydrogen container 11, a reactor body 12 and at least one alloy part 13, the reactor body 12 is provided with at least one hydrogen channel inside, and the hydrogen channel is connected to the inside of the hydrogen container 11, the alloy part 13 is built into the hydrogen channel for cooperating with hydrogen release and hydrogen storage, the heating component 2 comprises a buffer tank 21 and a burner 22, the buffer tank 21 has an air inlet end and an air outlet end, the buffer tank 21 has an air inlet end and an air outlet end, and the buffer tank 21 has an air inlet end and an air outlet end. The air inlet end of the flushing tank 21 is connected to the hydrogen channel and is used to add hydrogen to the buffer tank 21. The burner 22 is connected to the reactor body 12, and the interior of the burner 22 is connected to the air outlet end of the buffer tank 21, which is used to supply hydrogen for catalytic combustion reaction and supply the heat generated by the reaction to the alloy part 13 to cooperate with the activation and dehydrogenation of the hydrogen container 11. The refrigeration component 3 is connected to the burner 22, which is used to convert the heat generated by the burner 22 into cooling capacity and act on the alloy part 13 to cooperate with the cooling and hydrogen storage of the buffer tank 21.

[0029] In this device, the alloy part 13 is built into the hydrogen channel of the reactor body 12, and the hydrogen channel is connected to the interior of the hydrogen container 11. The hydrogen released from the buffer tank 21 undergoes a catalytic combustion reaction in the burner 22 to produce high-temperature exhaust gas. The high-temperature exhaust gas is first cooled by the refrigeration component 3 and then passed into the reactor body 12 to heat the alloy part 13 to cooperate with the dehydrogenation activation of the hydrogen. At the same time, the refrigeration component 3 can convert heating capacity into cooling capacity and store it for cooling the alloy part 13 when storing hydrogen.

[0030] It can be understood that compared with the prior art, there is no need to use external equipment to cool down the heat generated by the catalytic combustion reaction to achieve hydrogen release, and there is no need for external equipment to provide cooling capacity for the alloy part 13. Instead, the catalytic combustion of hydrogen is used as a heat source, and the refrigeration component 3 is used to achieve heat conversion, storage and provide a cold source. The hydrogen supply device does not require an external heat exchange circulating water system, and does not need to be equipped with a refrigeration unit. The overall structure is compact, the energy consumption is low, the energy utilization rate is high, and the application range is wide. It can solve the technical problems of limited usage scenarios and poor applicability.

[0031] Furthermore, the hydrogen container 11 in the device is a hydrogen source for providing hydrogen, and the outlet of the hydrogen channel is connected to an external fuel cell system to provide the activated hydrogen to the external fuel cell system for use.

[0032] As an implementation mode, the alloy member 13 includes a plurality of hydrogen storage alloys 131 , and the plurality of hydrogen storage alloys 131 are built into the hydrogen channel at intervals along the hydrogen channel.

[0033] It is understandable that Figure 2As shown, the alloy part 13 is composed of a first partition 132, a first fin 133, a second fin 134 and a second partition 135, which are arranged alternately. The first partition 132, the first fin 133 and the heat exchange chamber 136 constitute the heat exchange side, and the heat exchange chamber 136 is located between the first partition 132 and the first fin 133; the second partition 135, the second fin 134 and the hydrogen storage alloy 131 constitute the alloy side, and the hydrogen storage alloy 131 is located between the second partition 135 and the second fin 134. Among them, the hydrogen storage alloy 131 includes but is not limited to AB (such as TiFe) and AB2 (such as TiMn2) series hydrogen storage alloy 131. The alloy side and the heat exchange side are arranged at intervals, and one side of the joint shares a partition, and both sides of each alloy side are heat exchange sides.

[0034] As an embodiment, a plurality of temperature control channels are provided inside the reactor body 12, and the plurality of temperature control channels are evenly distributed along the circumference of the hydrogen channel, and the temperature control channels are connected to the outlet end of the heat exchange element 23 and the outlet pipe 34, for heating or cooling the hydrogen channel.

[0035] It can be understood that the temperature control channel is provided to achieve the transfer of heating and cooling capacity, and is used to heat or cool the alloy part 13.

[0036] As another implementation method, Figure 1 As shown, the hydrogen supply assembly 1 further includes a second valve body 14 , which is disposed between the hydrogen container 11 and the hydrogen channel and connected to the hydrogen container 11 .

[0037] It can be understood that the second valve body 14 is provided to realize the on and off operation of the hydrogen supply from the hydrogen container 11 to the reactor body 12 .

[0038] like Figure 1 As shown, the heating assembly 2 further includes a heat exchanger 23 connected to a pressure sensor 24 of the buffer tank 21 .

[0039] Among them, the heat exchanger 23 has an air inlet end and an air outlet end. The air inlet end of the heat exchanger 23 is connected to the thermoacoustic cooling element 31, and the air outlet end is connected to the reactor body 12. It is used to cool the high-temperature exhaust gas flowing out of the thermoacoustic cooling element 31 and pass it into the reactor body 12 to cooperate with the activation and dehydrogenation of the alloy part 13.

[0040] It can be understood that the function of the heat exchanger 23 is to continue cooling the high-temperature exhaust gas after the cooling capacity of the dust removal of the cold storage part 32 is fully stored, that is, after the high-temperature exhaust gas passes through the thermoacoustic refrigeration part 31, the temperature drops to 60-90°C, and enters the reactor body 12 through the heat exchanger 23. When the cold storage part 32 has not reached the set temperature, the heat exchanger 23 does not need to be turned on. When the cold storage part 32 reaches the set temperature, that is, when the cold storage capacity is saturated, the heat exchanger 23 is turned on to cool the high-temperature exhaust gas to ensure that the temperature of the flue gas is appropriate when it enters the reactor body 12. Here, the heat exchanger 23 is an air-cooled heat exchanger, which is a conventional setting known to those skilled in the art.

[0041] As an implementation method, a pressure relief port is provided on the buffer tank 21 , and a pressure sensor 24 is connected to the buffer tank 21 for monitoring the internal pressure of the buffer tank 21 .

[0042] It can be understood that when the buffer tank 21 is supplemented with pressurized hydrogen, after the pressure reaches the set value, the excess hydrogen is discharged from the pressure relief port.

[0043] like Figure 1 As shown, the refrigeration assembly 3 includes a thermoacoustic refrigeration component 31 and a cold storage component 32. The interior of the thermoacoustic refrigeration component 31 is connected to the interior of the burner 22, and is used to convert the heat generated in the burner 22 into cooling capacity. The cold storage component 32 is connected to the thermoacoustic refrigeration component 31, and is used to store the cooling capacity converted by the thermoacoustic refrigeration component 31.

[0044] It can be understood that the thermoacoustic refrigeration element 31 and the cold storage element 32 are used to cool the high-temperature exhaust gas and store the cooling capacity. Here, the thermoacoustic refrigeration element 31 is composed of a thermoacoustic engine and a thermoacoustic refrigerator. Through the thermoacoustic and acoustic refrigeration effects, the heat energy of the high-temperature exhaust gas is partially converted into sound energy, and then the sound energy is consumed to obtain cooling capacity at the cold end. The refrigerator circulates between the thermoacoustic refrigeration element 31 and the cold storage element 32, and the cold capacity is transferred to the cold storage element 32 for storage. The cold storage element 32 is filled with copper alloy or stainless steel wire mesh as a cold storage medium.

[0045] Furthermore, the thermoacoustic cooling element 31 and the cold storage element 32 in the present device are conventional arrangements well known to those skilled in the art, and will not be elaborated on in detail herein.

[0046] like Figure 1 As shown, the refrigeration assembly 3 further includes an air inlet pipe 33 , an air outlet pipe 34 and a first valve body 35 , which are connected to a temperature sensor 36 of the cold storage component 32 .

[0047] Among them, the air inlet pipe 33 is connected with the interior of the cold storage component 32, and is used to pass air into the interior of the cold storage component 32. The two ends of the air outlet pipe 34 are respectively connected with the reactor body 12 and the cold storage component 32, and are used to pass the cooling capacity into the reactor body 12 to cooperate with the alloy component 13 to store hydrogen. The first valve body 35 is arranged on the air outlet pipe 34 and is connected to the air outlet pipe 34.

[0048] It can be understood that the air inlet pipe 33, the air outlet pipe 34 and the first valve body 35 are used to pass the cooling capacity in the cold storage component 32 into the alloy component 13 for hydrogen storage and cooling.

[0049] As an implementation method, the temperature sensor 36 is connected to the cooling element 32 .

[0050] It can be understood that a temperature sensor 36 is provided above the cold storage component 32 to detect the temperature in the cold storage component 32 .

[0051] Further, in this device, the concentration of hydrogen entering the burner 22 is controlled to be 10%, the temperature of the high-temperature exhaust gas is 450°C, and the temperature drops to 60°C after passing through the thermoacoustic refrigeration element 31. The temperature in the cold storage element 32 is monitored to continue to drop. After it drops to 10°C, the thermoacoustic refrigeration element 31 is closed, and the heat exchange element 23 is opened. The flue gas temperature entering the reactor body 12 is 60-90°C, and the reactor body 12 releases hydrogen, and the hydrogen pressure is 0.3MPa. When the hydrogen pressure drops below 0.2MPa, the second valve body 14 and the first valve body 35 are opened, the hydrogen container 11 is decompressed to 4.5MPa, and cold air passing through the cold storage element 32 is introduced into the reactor body 12 to start the hydrogen filling process. The temperature of the cold storage element 32 rises to 15°C, the second valve body 14 and the first valve body 35 are closed, and the hydrogen filling is completed. Here, the first valve body 35 and the second valve body 14 are both solenoid valves, which are conventional settings known to those skilled in the art and will not be elaborated on.

[0052] See also Figure 1 and Figure 2 The present invention provides a hydrogen supply method based on alloy hydrogen storage, which is performed using the above-mentioned hydrogen supply system based on alloy hydrogen storage, and comprises the steps of:

[0053] S1, the hydrogen in the buffer tank 21 is first introduced into the burner 22, mixed with the air entering the burner 22, and a flameless combustion reaction occurs under the action of the catalyst, and the high-temperature exhaust gas after combustion is introduced into the thermoacoustic refrigeration element 31;

[0054] S2, the thermoacoustic cooling element 31 converts the high-temperature exhaust gas into cooling capacity and stores it in the cold storage element 32, and passes the cooled exhaust gas into the temperature control channel, using the temperature control channel to provide heating to heat the alloy member 13 in the hydrogen channel;

[0055] S3. After reaching the appropriate temperature, the second valve body 14 is opened, and the hydrogen in the hydrogen container 11 is released and flows through the hydrogen channel, and cooperates with the alloy member 13 in the hydrogen channel to complete the activation and release of hydrogen. At the same time, the hydrogen enters the buffer tank 21 along the hydrogen channel to replenish the buffer tank 21 with hydrogen for the combustion reaction in time;

[0056] S4. After the storage limit of the cold storage element 32 is reached, the thermoacoustic cooling element 31 stops converting the high-temperature exhaust gas into cooling capacity. The high-temperature exhaust gas is cooled by the heat exchange element 23 and then passed into the temperature control channel, which also provides heating capacity for heating the alloy element 13 in the hydrogen channel.

[0057] S5. When storing hydrogen, the buffer tank 21 stops supplying gas, the burner 22 stops producing high-temperature tail gas, and air is introduced into the reactor body 12 through the outlet pipe 34 of the cold storage component 32 to store hydrogen and cool the alloy component 13.

[0058] In the specific working process of the present invention, the hydrogen in the buffer tank 21 is first introduced into the burner 22, mixed with the air entering the burner 22, and a flameless combustion reaction occurs under the action of the catalyst, and the high-temperature exhaust gas after combustion is introduced into the thermoacoustic refrigeration component 31; then the thermoacoustic refrigeration component 31 converts the high-temperature exhaust gas into cooling capacity and stores it in the cold storage component 32, and introduces the cooled exhaust gas into the temperature control channel, and the temperature control channel is used to provide heating to heat the alloy member 13 in the hydrogen channel; after reaching the appropriate temperature, the second valve body 14 is opened, and the hydrogen in the hydrogen container 11 is released and flows through the hydrogen channel, and works together with the alloy member 13 in the hydrogen channel to complete the hydrogen The activation releases hydrogen, and at the same time, the hydrogen enters the buffer tank 21 along the hydrogen channel to replenish the buffer tank 21 with hydrogen for the combustion reaction in time; then after reaching the storage upper limit of the cold storage component 32, the thermoacoustic refrigeration component 31 stops converting the high-temperature exhaust gas into cooling capacity, and the high-temperature exhaust gas is cooled by the heat exchange component 23 and then passed into the temperature control channel, which also provides heating capacity for heating the alloy part 13 in the hydrogen channel; when the hydrogen pressure drops below 0.2MPa and the buffer tank 21 is opened for hydrogen storage, the buffer tank 21 stops supplying gas, and the burner 22 stops producing high-temperature exhaust gas. The air is passed into the reactor body 12 through the outlet pipe 34 of the cold storage component 32, which is used for hydrogen storage and cooling of the alloy part 13.

[0059] Furthermore, the device adopts a microchannel alloy hydrogen storage reactor body 12 based on a plate-fin structure, and utilizes the microchannel structure to form several small-scale reaction chambers and the secondary heat transfer surface of the plate-fin reactor, effectively reducing the thermal resistance of the hydrogen storage alloy 131 bed, increasing the heat exchange area, improving the heat transfer coefficient of the hydrogen storage reactor, and improving the hydrogen charging and discharging performance. At the same time, hydrogen catalytic combustion is used as a heat source, and the thermoacoustic refrigeration component 31 and the cold storage component 32 provide a cold source. The hydrogen supply device does not need an external heat exchange circulating water system, and does not need to be equipped with a refrigeration unit. The overall structure is compact, the energy consumption is low, the energy utilization rate is high, and the application range is wide.

[0060] The above structure can be used to solve the problem in the prior art that external heat exchange or refrigeration equipment is required to realize the operation of the hydrogen supply system, thereby resulting in limited usage scenarios and poor applicability.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A hydrogen supply system based on alloy hydrogen storage, characterized in that: include: A hydrogen supply assembly comprises a hydrogen container, a reactor body and at least one alloy part, wherein at least one hydrogen channel is provided inside the reactor body, and the hydrogen channel is connected to the interior of the hydrogen container, and the alloy part is built into the hydrogen channel for cooperating with hydrogen release and hydrogen storage; A heating component, comprising a buffer tank and a burner, wherein the buffer tank has an air inlet end and an air outlet end, wherein the air inlet end of the buffer tank is connected to the hydrogen channel and is used to add hydrogen to the buffer tank, wherein the burner is connected to the reactor body, and the interior of the burner is connected to the air outlet end of the buffer tank and is used to supply hydrogen to undergo a catalytic combustion reaction and supply the heat generated by the reaction to the alloy part to cooperate with the activation and dehydrogenation of the hydrogen container; A refrigeration component, which is connected to the burner and is used to convert the heat generated by the burner into refrigeration and act on the alloy part to cooperate with the buffer tank to cool down and store hydrogen; The refrigeration assembly includes a thermoacoustic refrigeration component, a cold storage component, an air inlet pipe, an air outlet pipe, a first valve body and a heat exchange component. The interior of the thermoacoustic refrigeration component is connected to the interior of the burner for converting the heat generated in the burner into refrigeration. The cold storage component is connected to the thermoacoustic refrigeration component for storing the refrigeration converted by the thermoacoustic refrigeration component. The air inlet pipe is connected to the interior of the cold storage component for passing air into the interior of the cold storage component. The two ends of the air outlet pipe are respectively connected to the reactor body and the cold storage component for passing the refrigeration into the reactor body to cooperate with the alloy component for hydrogen storage. The first valve body is arranged on the air outlet pipe and connected to the air outlet pipe. The heat exchange component has an air inlet end and an air outlet end. The air inlet end of the heat exchange component is connected to the thermoacoustic refrigeration component, and the air outlet end is connected to the reactor body. The high-temperature exhaust gas flowing out of the thermoacoustic refrigeration component is cooled and passed into the reactor body to cooperate with the activation and hydrogen release of the alloy component.

2. The hydrogen supply system based on alloy hydrogen storage according to claim 1, characterized in that: The reactor body is also provided with a plurality of temperature control channels, which are evenly distributed along the circumference of the hydrogen channel, and are connected with the gas outlet end and the gas outlet pipe of the heat exchange element for heating or cooling the hydrogen channel.

3. The hydrogen supply system based on alloy hydrogen storage according to claim 1, characterized in that: The refrigeration component also includes a temperature sensor, and the temperature sensor is connected to the cold storage component.

4. The hydrogen supply system based on alloy hydrogen storage according to claim 1, characterized in that: The buffer tank is provided with a pressure relief port, and the heating component further comprises a pressure sensor, which is connected to the buffer tank and is used to monitor the internal pressure of the buffer tank.

5. The hydrogen supply system based on alloy hydrogen storage according to claim 1, characterized in that: The alloy member includes a plurality of hydrogen storage alloys, and the plurality of hydrogen storage alloys are built into the hydrogen channel at intervals along the hydrogen channel.

6. The hydrogen supply system based on alloy hydrogen storage according to claim 1, characterized in that: The hydrogen supply assembly further includes a second valve body, which is disposed between the hydrogen container and the hydrogen channel and connected to the hydrogen container.

7. A hydrogen supply method based on alloy hydrogen storage, characterized in that: The method is carried out using a hydrogen supply system based on alloy hydrogen storage as described in any one of claims 1 to 6, comprising the steps of: S1. The hydrogen in the buffer tank is first introduced into the burner, mixed with the air entering the burner, and a flameless combustion reaction occurs under the action of the catalyst. The high-temperature exhaust gas after combustion is introduced into the thermoacoustic refrigeration component; S2. The thermoacoustic refrigeration component converts the high-temperature exhaust gas into cooling capacity and stores it in the cold storage component, and passes the cooled exhaust gas into the temperature control channel, using the temperature control channel to provide heating to heat the alloy parts in the hydrogen channel; S3. After reaching the appropriate temperature, the second valve body is opened, and the hydrogen in the hydrogen container is released and flows through the hydrogen channel, and cooperates with the alloy parts in the hydrogen channel to complete the activation and release of hydrogen. At the same time, the hydrogen enters the buffer tank along the hydrogen channel to replenish the buffer tank with hydrogen for combustion reaction in time; S4. After the storage limit of the cold storage component is reached, the thermoacoustic refrigeration component stops converting the high-temperature exhaust gas into cooling capacity. The high-temperature exhaust gas is cooled by the heat exchange component and then passed into the temperature control channel, which also provides heating capacity to heat the alloy components in the hydrogen channel. S5. When storing hydrogen, the buffer tank stops supplying gas, the burner stops producing high-temperature tail gas, and air is introduced into the reactor body through the outlet pipe of the cold storage part to store hydrogen and cool the alloy parts.

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