Double-base solid hydrogen storage heat pump system and method

Abstract

The invention discloses a double-base solid hydrogen storage heat pump system and method, and belongs to the technical field of heat pump devices. A refrigeration operation mode, a heating operation mode and a module combination operation mode are included, the refrigeration module of the simple solid hydrogen storage heat pump system is divided into a first reactor and a second reactor, the external environment is simplified into a heat source driving system, an environment temperature system and a working refrigeration system, and the refrigeration module comprises six electromagnetic three-way valves and two pipelines allowing hydrogen to flow. The two air flow one-way valves are used for controlling one-way flowing of the pipelines, the two electromagnetic stop valves are used for controlling opening and closing of the pipelines, the pressure sensor is used for controlling opening and closing of the valves, the first reactor operates under a high-temperature condition, and the second reactor operates under a low-temperature condition. The system can be used as a refrigerating or heating system to operate independently and can also be used for mutual coupling operation between systems, various effects of refrigerating, heating, continuous refrigerating and heating and the like can be achieved, and the module coupling number or the refrigerating and heating capacity of a single module can be formulated according to the refrigerating and heating demand quantity.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat pump devices, and relates to a dual-based solid-state hydrogen storage heat pump system and method. Background Art

[0002] As an efficient energy transfer and utilization technology, heat pump technology is widely used in the fields of heating, co-cooling, and hot water. Common heat pump devices on the market can be classified according to the energy source and working mechanism. According to different energy sources, heat pumps can be divided into air-source heat pumps, ground-source heat pumps, water-source heat pumps, dual-source heat pumps, etc.

[0003] Although the existing heat pump technology is more efficient than traditional heating equipment, there are still some defects. The existing heat pump technology has a large dependence on the ambient temperature and has high energy consumption in non-ideal environments. For example, the efficiency of air-source heat pumps drops significantly in low-temperature environments, where there is less heat in the external air, and more electricity needs to be consumed to maintain heat transfer. In high-temperature environments, heat pumps need to consume more electrical energy to provide sufficient cooling capacity. The application of heat pumps is also restricted by geographical conditions. For example, in the northeastern region of China, due to the low winter temperature, the operating efficiency of air-source heat pumps is poor. And in areas with poor soil geological conditions, ground-source heat pumps are not suitable for application. The use of refrigerants is likely to cause environmental problems. Traditional heat pumps usually use fluorine-containing refrigerants, which have a strong greenhouse gas effect. Although some new refrigerants have improved environmental performance, improper use will still cause significant environmental pollution. Traditional heat pumps cannot get rid of the dependence on electrical energy. Heat pump technology needs to rely on electric drive to convert low-grade heat energy into high-grade heat energy, and the energy efficiency and environmental protection effect depend on the power source and grid stability. Traditional heat pumps have relatively serious noise problems, especially air-source heat pumps, which generate noise when the compressor and fan are running. The noise will reduce the service life of heat pump equipment and increase the maintenance cost. Traditional chemical heat pumps need to use reactants and catalysts, which are likely to have an adverse impact on the environment. Some chemical reactions may produce toxic or corrosive by-products. If these by-products are not properly treated, they may pollute the air, water source or soil. Summary of the Invention

[0004] The present invention aims at the problems of the existing technology and provides a dual-based solid-state hydrogen storage heat pump system and method.

[0005] A dual-based solid-state hydrogen storage heat pump system includes a refrigeration operation mode, a heating operation mode, and a combined module operation mode.

[0006] Refrigeration operation mode: The refrigeration module of the simple solid-state hydrogen storage heat pump system is divided into a first reactor and a second reactor. The external environment is simplified into a heat source drive system, an ambient temperature system, and a working refrigeration system, including six electromagnetic three-way valves, two pipes for hydrogen gas flow, two gas one-way valves for controlling the one-way flow of the pipeline, two electromagnetic shut-off valves for controlling the pipeline switch, and the pressure sensor controls the opening and closing of the valves. Among them, the first reactor operates under high-temperature conditions, and the second reactor operates under low-temperature conditions.

[0007] Heating operation mode: To carry out heating operation, a hydrogen storage alloy pair different from that in refrigeration operation needs to be used. The selection of the hydrogen storage alloy pair is related to the working temperature and is selected according to the Van't Hoff diagram of metal hydrides. The module has two electromagnetic three-way valves, two pipes for hydrogen gas flow, two gas one-way valves for controlling the one-way flow of the pipeline, two electromagnetic shut-off valves for controlling the pipeline switch, and the pressure sensor controls the opening and closing of the valves. The first reactor operates under high-temperature conditions, and the second reactor operates under low-temperature conditions.

[0008] Module combined operation mode: The module combined operation is divided into the combination of refrigeration and heating modules and the combination of the same refrigeration (heating) modules to achieve the effect of continuous refrigeration (heating).

[0009] Refrigeration module combination: The first reactor and the second reactor 2 form a first working group, and the third reactor and the fourth reactor form a second working group. When the first working group is heating, the second working group is preparing for heating; when the first working group is preparing for heating, the second working group is heating. It includes 12 electromagnetic three-way valves, 4 electromagnetic shut-off valves, and 4 gas one-way flow valves, and the valves are controlled by the pressure sensor to open and close.

[0010] Combination of refrigeration and heating modules: The first reactor and the second reactor 2 form a heating group, and the third reactor and the fourth reactor form a refrigeration group. The two groups operate in their respective operation modes without affecting each other. Structurally, they are connected by a heat exchange fluid pipeline and a heat source. By controlling the opening and closing of each valve, the operation of the two systems is controlled simultaneously. It includes 12 electromagnetic three-way valves, 4 electromagnetic shut-off valves, and 4 gas one-way flow valves, and the valves are controlled by the pressure sensor to open and close.

[0011] A dual - base solid - state hydrogen storage heat pump method includes the following steps: The first solid - state hydrogen storage reactor serves as the main device for the reaction between the hydrogen storage alloy and hydrogen, and for the heat absorption and release of the heat - exchange fluid. During the heating operation, the hydrogen storage alloy in the first reactor reacts with hydrogen from the second reactor to form metal hydride. In this process, the high - temperature heat - exchange fluid absorbs the reaction heat and its temperature increases. During the refrigeration operation, the hydrogen storage alloy in the first reactor absorbs high - temperature waste heat and undergoes a dehydrogenation reaction, causing the internal gas pressure of the reactor to rise and driving the operation of the entire system. Through the reaction of the hydrogen storage alloy in the second solid - state hydrogen storage reactor with hydrogen, which also serves as the main device for the heat absorption and release of the heat - exchange fluid. During the heating operation, the metal hydride in the second reactor absorbs heat from the medium - temperature heat - exchange fluid and undergoes a dehydrogenation reaction. During the refrigeration operation, the second reactor undergoes a dehydrogenation reaction to absorb heat from the low - temperature heat - exchange fluid. The electromagnetic three - way valve switches the heat - exchange fluid flow path as needed, introducing high - temperature fluid or lower - temperature fluid into the reactor to control the reaction between hydrogen and the metal alloy inside the reactor. The throttle valve controls the flow of hydrogen between the two reactors by adjusting the valve opening, and controls the reaction time and reaction degree of each reactor. The one - way air valve prevents hydrogen from flowing back. The temperature and pressure sensors provide monitoring data to ensure the optimal operation state of the system. The temperature sensor monitors the temperature inside the reactor and of the heat - exchange fluid, and the pressure sensor monitors the internal pressure of the reactor to prevent abnormal pressure or temperature conditions in the reactor due to unexpected reasons, and at the same time provides a data basis for controlling the opening and closing of the valves.

[0012] In view of the deficiencies of traditional heat pump technologies, a solid - state hydrogen storage heat pump system is proposed, which helps to solve problems such as the large influence of traditional heat pumps by environmental factors, the easy pollution of the environment by refrigerants, the high dependence on electric energy, and the noise affecting the service life of equipment and the living environment. The heat pump has good energy - saving and environmental - protection properties and has great development prospects.

[0013] Compared with the prior art, the solid - state hydrogen storage heat pump system of the present invention has the following benefits.

[0014] Environmental protection and energy saving: The present invention uses hydrogen and hydrogen storage alloy as the main materials. Heat release and absorption do not rely on electric energy, and hydrogen and hydrogen storage alloy do not pollute the surrounding environment, having an environmentally friendly property.

[0015] No noise: The hydrogen absorption and desorption reaction between hydrogen and hydrogen storage alloy produces no noise throughout the process, and the heat absorption and release of the heat - exchange fluid also produce no noise. There is a pressure difference between the two reactors, and the flow of hydrogen does not require a compressor to push. There is no noise during the operation of the equipment.

[0016] Not restricted by region: The properties of the hydrogen storage alloy in the reactor determine the working conditions suitable for the heat pump system. Different hydrogen storage alloys can be used in combination under different operating conditions and operating requirements to achieve the designed working effect.

[0017] High degree of freedom modularity: The present invention can operate independently as a refrigeration or heating system, or can operate in a coupled manner between systems, enabling multiple effects such as refrigeration, heating, continuous refrigeration and heating, etc., and can determine the number of module couplings or the refrigeration and heating capacities of a single module according to the refrigeration and heating requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. As shown in the figures:

[0019] Figure 1 It is a structural diagram of the refrigeration module of a simple solid-state hydrogen storage heat pump system.

[0020] Figure 2 It is a structural diagram of the simple solid-state hydrogen storage heating module.

[0021] Figure 3 It is a structural diagram for realizing continuous refrigeration by the combined operation of two refrigeration modules of the present invention.

[0022] Figure 4 It is a system structural diagram when two heating modules of the present invention are combined and operated.

[0023] Figure 5 It is a system structural diagram when the refrigeration and heating modules of the present invention are combined and operated. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] Embodiment 1: As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, a dual-based solid-state hydrogen storage heat pump system, which relates to a refrigeration operation mode, a heating operation mode, and a module combined operation mode.

[0026] The refrigeration operation mode of the present invention:

[0027] As Figure 1Shown is the refrigeration module of a simple solid-state hydrogen storage heat pump system, and the operation process of the entire system is described based on this module.

[0028] The entire module is divided into a first reactor 1 and a second reactor 2.

[0029] The external environment is simplified into a heat source driving system, an ambient temperature system, and a working refrigeration system.

[0030] Secondly, it includes 6, namely: the first electromagnetic three-way valve S1, the second electromagnetic three-way valve S2, the third electromagnetic three-way valve S3, the fourth electromagnetic three-way valve S4, the ninth electromagnetic three-way valve S9, the tenth electromagnetic three-way valve S10, 2 pipes for hydrogen flow, 2 first air flow check valves J1 and J2 for controlling the one-way flow of the pipeline, 2 first electromagnetic stop valves Z1 and Z2 for controlling the pipeline switch, and the pressure sensor controls the opening and closing of the valve.

[0031] Among them, the first reactor 1 operates under higher temperature conditions, and the second reactor 2 operates under lower temperature conditions.

[0032] As Figure 1 Shown, one side of the first reactor 1 is connected to the first electromagnetic three-way valve S1, the other side of the first reactor 1 is connected to the third electromagnetic three-way valve S3, one side of the second reactor 2 is connected to the second electromagnetic three-way valve S2, the other side of the second reactor 2 is connected to the fourth electromagnetic three-way valve S4, a channel between the first reactor 1 and the second reactor 2 is respectively connected in series with the first temperature and pressure sensor M1, the first electromagnetic stop valve Z1 and the first air flow check valve J1, another channel between the first reactor 1 and the second reactor 2 is respectively connected in series with the second temperature and pressure sensor M2, the second air flow check valve J2 and the second electromagnetic stop valve Z2, the channel between the first electromagnetic three-way valve S1 and the second electromagnetic three-way valve S2 is connected to the ninth electromagnetic three-way valve S9, the channel between the third electromagnetic three-way valve S3 and the fourth electromagnetic three-way valve S4 is connected to the tenth electromagnetic three-way valve S10, the ninth electromagnetic three-way valve S9 is connected to the second pump P2, the other side of the first electromagnetic three-way valve S1 is connected to the third pump P3, the other side of the second electromagnetic three-way valve S2 is connected to the first pump P1, one side of the third electromagnetic three-way valve S3 is connected to the high-temperature device, one side of the second pump P2 and one end of the tenth electromagnetic three-way valve S10 are connected to the medium-temperature device, one side of the first pump P1 is connected to the low-temperature device, and one side of the third pump P3 is connected to the high-temperature device.

[0033] As Figure 3 And Figure 4 Shown, the heating module operates in combination to achieve continuous heating. In terms of structure, it is the same as the continuous refrigeration system, but the difference lies in the selection of the hydrogen storage alloy inside the reactor and the system operation process is also different.

[0034] The first reactor 1 and the second reactor 2 form a first working group A, and the third reactor 3 and the fourth reactor 4 form a second working group B. When the first working group A is heating, the second working group B is preparing for heating; when the first working group A is preparing for heating, the second working group B is heating.

[0035] It includes 12 electromagnetic three-way valves (the first electromagnetic three-way valve S1, the second electromagnetic three-way valve S2, the third electromagnetic three-way valve S3, the fourth electromagnetic three-way valve S4, the fifth electromagnetic three-way valve S5, the sixth electromagnetic three-way valve S6, the seventh electromagnetic three-way valve S7, the eighth electromagnetic three-way valve S8, the ninth electromagnetic three-way valve S9, the tenth electromagnetic three-way valve S10, the eleventh electromagnetic three-way valve S11, and the twelfth electromagnetic three-way valve S12), 4 electromagnetic stop valves (the first electromagnetic stop valve Z1, the second electromagnetic stop valve Z2, the third electromagnetic stop valve Z3, and the fourth electromagnetic stop valve Z4), and 4 gas one-way flow valves (the first gas one-way valve J1, the second gas one-way valve J2, the third gas one-way valve J3, and the fourth gas one-way valve J4). The opening and closing of the valves are controlled by pressure sensors.

[0036] The heating operation mode of the present invention:

[0037] For heating operation, a hydrogen storage alloy pair different from that for refrigeration operation needs to be used. The selection of the hydrogen storage alloy pair is related to the working temperature and can be selected according to the Van't Hoff plot of metal hydrides.

[0038] Such as Figure 2As shown in (the heating module combination), one side of the first reactor 1 is connected to the fifth electromagnetic three-way valve S5, and the other side of the first reactor 1 is connected to the seventh electromagnetic three-way valve S7. One side of the second reactor 2 is connected to the sixth electromagnetic three-way valve S6, and the other side of the second reactor 2 is connected to the eighth electromagnetic three-way valve S8. A channel between the first reactor 1 and the second reactor 2 is serially connected to the third temperature and pressure sensor M3, the third electromagnetic cut-off valve Z3, and the third air flow check valve J3 respectively. Another channel between the first reactor 1 and the second reactor 2 is serially connected to the fourth temperature and pressure sensor M4, the fourth air flow check valve J4, and the fourth electromagnetic cut-off valve Z4 respectively. A channel between the fifth electromagnetic three-way valve S5 and the sixth electromagnetic three-way valve S6 is connected to the eleventh electromagnetic three-way valve S11. A channel between the seventh electromagnetic three-way valve S7 and the eighth electromagnetic three-way valve S8 is connected to the twelfth electromagnetic three-way valve S12. The eleventh electromagnetic three-way valve S11 is connected to the second pump P2. The other side of the fifth electromagnetic three-way valve S5 is connected to the third pump P3. The other side of the sixth electromagnetic three-way valve S6 is connected to the first pump P1. One side of the seventh electromagnetic three-way valve S7 is connected to a high-temperature device. One side of the eighth electromagnetic three-way valve S8 and one side of the twelfth electromagnetic three-way valve S12 are connected to a device determined according to the actual situation. One side of the second pump P2 and one end of the tenth electromagnetic three-way valve S10 are connected to a medium-temperature device. One side of the first pump P1 is connected to a low-temperature device. One side of the third pump P3 is connected to a high-temperature device.

[0039] The first pump P1, the second pump P2, the third pump P3, the fourth pump P4, the fifth pump P5, and the sixth pump P6 function to push the fluid to flow.

[0040] As Figure 2 Shown is a simple solid-state hydrogen storage heating module. The module has 7 electromagnetic three-way valves, namely: the fifth electromagnetic three-way valve S5, the sixth electromagnetic three-way valve S6, the seventh electromagnetic three-way valve S7, the eighth electromagnetic three-way valve S8, the ninth electromagnetic three-way valve S9, the tenth electromagnetic three-way valve S10, the eleventh electromagnetic three-way valve S11 (since the flow direction of part of the fluid at the outlet of the second reactor 2 needs to be determined according to the actual situation, the eighth electromagnetic three-way valve S8 is left in this figure). 2 pipes for the hydrogen to flow through, 2 third air flow check valves J3 and J4 for controlling the one-way flow of the pipeline, 2 third electromagnetic cut-off valves Z3 and second electromagnetic cut-off valve Z4 for controlling the pipeline switch, and the pressure sensor controls the opening and closing of the valve. The first reactor 1 operates under relatively high-temperature conditions, and the second reactor 2 operates under relatively low-temperature conditions.

[0041] Figure 2"Decided according to the actual situation": The actual situation requires compliance with the concept of "using energy according to quality", that is, determining the destination of energy according to the energy quality. The temperatures of the medium-temperature heat source and the low-temperature heat source in this system need to be determined according to the actual situation, and the temperatures of the heat exchange fluids flowing out of e and h are between medium temperature and low temperature, which is called medium-low temperature here. When there is a demand for using medium-low temperature quality energy in the system, the destination of the flowing-out heat exchange fluid can be changed to further utilize the energy in the medium-low temperature working fluid. If there is no demand for using medium-low temperature quality energy, it can be as Figure 1 shown. The destination of the heat exchange fluid needs to be adjusted according to the actual situation.

[0042] "Decided according to the actual situation" is not limited to a specific structure. Specific implementation examples are as follows: In a system with water as the working fluid, "according to the actual situation" can be a device as "domestic water".

[0043] Under specific conditions, such as in northern regions in winter, generally the water temperature flowing out of the faucet is below 10°C. Using this system, the water temperature flowing out of the faucet can be increased and can also be controlled within the temperature range that makes people feel comfortable, which conforms to the concept of "using energy according to quality". At this time, the structure of "according to the actual situation" can be "faucet".

[0044] As Figure 4 shown, the first reactor 1 and the second reactor 2 form the first working group A, and the third reactor 3 and the fourth reactor 4 form the second working group B. When the first working group A is heating, the second working group B is preparing for heating; when the first working group A is preparing for heating, the second working group B is heating.

[0045] The first working group A is structured as Figure 1 shown.

[0046] The second working group B is structured as Figure 3As shown on the right, one side of the third reactor 3 is connected to the fifth electromagnetic three-way valve S5, and the other side of the third reactor 3 is connected to the seventh electromagnetic three-way valve S7. One side of the fourth reactor 4 is connected to the second electromagnetic three-way valve S2, and the other side of the fourth reactor 4 is connected to the sixth electromagnetic three-way valve S6. A channel between the third reactor 3 and the fourth reactor 4 is serially connected to the third temperature and pressure sensor M13, the third electromagnetic shut-off valve Z3, and the third air flow check valve J3 respectively. Another channel between the third reactor 3 and the fourth reactor 4 is serially connected to the fourth temperature and pressure sensor M4, the fourth air flow check valve J4, and the fourth electromagnetic shut-off valve Z4 respectively. A channel between the fifth electromagnetic three-way valve S5 and the sixth electromagnetic three-way valve S6 is connected to the eleventh electromagnetic three-way valve S11. A channel between the seventh electromagnetic three-way valve S7 and the eighth electromagnetic three-way valve S8 is connected to the twelfth electromagnetic three-way valve S12. The fifth electromagnetic three-way valve S5 is connected to the second pump P2, and the other side of the fifth electromagnetic three-way valve S5 is connected to the second pump P2. The other side of the sixth electromagnetic three-way valve S6 is connected to the sixth pump P6. One side of the third electromagnetic three-way valve S3 is connected to a high-temperature device. One side of the fourth pump P4 and one end of the twelfth electromagnetic three-way valve S12 are connected to a medium-temperature device. One side of the sixth pump P6 is connected to a low-temperature device. One side of the second pump P2 is connected to a high-temperature device.

[0047] The operation of the system is only affected by factors such as the temperature and heat transfer characteristics of the heat exchange fluid flowing into the system, and is not affected by the heat exchange fluid flowing out of the system. "Decided according to the actual situation" does not affect the normal operation of the dual-base solid-state hydrogen storage heat pump system.

[0048] The modular combined operation mode of the present invention:

[0049] As Figure 5 shown, the modular combined operation can be divided into the combination of refrigeration and heating modules with each other and the combination of the same refrigeration (heating) modules with each other to achieve the effect of continuous refrigeration (heating).

[0050] Refrigeration module combination: As Figure 3 shown, the structure of the refrigeration module combination is the same as that of the heating module combination, but the operation processes are different. The first reactor 1 and the second reactor 2 form the first working group A, and the third reactor 3 and the fourth reactor 4 form the second working group B. When the first working group A is refrigerating, the second working group B is preparing for refrigeration; when the first working group A is preparing for refrigeration, the second working group B is refrigerating.

[0051] The system includes a total of 12 valves, namely the first electromagnetic three-way valve S1, the second electromagnetic three-way valve S2, the third electromagnetic three-way valve S3, the fourth electromagnetic three-way valve S4, the fifth electromagnetic three-way valve S5, the sixth electromagnetic three-way valve S6, the seventh electromagnetic three-way valve S7, the eighth electromagnetic three-way valve S8, the ninth electromagnetic three-way valve S9, the tenth electromagnetic three-way valve S10, the eleventh electromagnetic three-way valve S11, and the twelfth electromagnetic three-way valve S12; 4 electromagnetic stop valves, namely the first electromagnetic stop valve Z1, the second electromagnetic stop valve Z2, the third electromagnetic stop valve Z3, and the fourth electromagnetic stop valve Z4; and 4 one-way gas flow valves, namely the first one-way gas flow valve J1, the second one-way gas flow valve J2, the third one-way gas flow valve J3, and the fourth one-way gas flow valve J4. The opening and closing of the valves are controlled by pressure sensors.

[0052] The refrigeration and heating modules are combined with each other: By default, the system assumes that the heat sources of high and low temperatures are inexhaustible. The first reactor 1 and the second reactor 2 form a heating group A, and the third reactor 3 and the fourth reactor 4 form a refrigeration group B. The two groups operate independently without affecting each other. Structurally, they are connected by heat exchange fluid pipelines and heat sources. By controlling the opening and closing of each valve, the operation of the two systems can be controlled simultaneously.

[0053] This invention includes a total of 12 valves, namely the first electromagnetic three-way valve S1, the second electromagnetic three-way valve S2, the third electromagnetic three-way valve S3, the fourth electromagnetic three-way valve S4, the fifth electromagnetic three-way valve S5, the sixth electromagnetic three-way valve S6, the seventh electromagnetic three-way valve S7, the eighth electromagnetic three-way valve S8, the ninth electromagnetic three-way valve S9, the tenth electromagnetic three-way valve S10, the eleventh electromagnetic three-way valve S11, and the twelfth electromagnetic three-way valve S12; 4 electromagnetic stop valves, namely the first electromagnetic stop valve Z1, the second electromagnetic stop valve Z2, the third electromagnetic stop valve Z3, and the fourth electromagnetic stop valve Z4; and 4 one-way gas flow valves, namely the first one-way gas flow valve J1, the second one-way gas flow valve J2, the third one-way gas flow valve J3, and the fourth one-way gas flow valve J4. The opening and closing of the valves are controlled by pressure sensors.

[0054] The other end of the third electromagnetic three-way valve S3 outputs the heated fluid, and the other end of the eighth electromagnetic three-way valve S8 outputs the refrigerated fluid.

[0055] It should be noted that the heat exchange fluid after refrigeration and the heat exchange fluid after heating do not return to the original heat sources because the cold source or heat source needs to perform the work of providing and absorbing heat in this system. (If the cold source or heat source can be divided into two parts for heat supply and heat absorption respectively, the system can be planned differently)

[0056] Example 2: As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, a dual-base solid-state hydrogen storage heat pump method includes the following steps:

[0057] Refrigeration operation steps:

[0058] Initialization: Hydrogen reacts with the hydrogen storage alloy in the first reactor 1 to form metal hydride, which is stored in the first reactor 1. The hydrogen storage alloy in the second reactor 2 does not combine with hydrogen and exists only in the form of an alloy. At this time, the electromagnetic cut-off valve is closed, and hydrogen does not flow between the two reactors. The electromagnetic three-way valve is closed, and no heat exchange fluid flows into the reactor.

[0059] The first stage - preheating stage:

[0060] The a end of the first electromagnetic three-way valve S1 and the e end of the third electromagnetic three-way valve S3 are opened. The b end of the ninth electromagnetic three-way valve S9, the c end of the second electromagnetic three-way valve S2, the g end of the fourth electromagnetic three-way valve S4, and the d end of the tenth electromagnetic three-way valve S10 are opened. The first electromagnetic cut-off valve Z1 and the second electromagnetic cut-off valve Z2 are closed. At this time, the heat exchange fluid flows into the reactor interior, and the temperature in the first reactor 1 rises to reach the hydrogen desorption temperature.

[0061] A dehydrogenation reaction occurs in the first reactor 1, absorbing heat from the heat exchange fluid, and the pressure inside the first reactor 1 increases. Ambient temperature fluid is introduced into the second reactor 2, and the temperature in the second reactor 2 tends to the ambient temperature.

[0062] The second stage - recovery stage: The first electromagnetic cut-off valve Z1 is opened. Due to the pressure difference, hydrogen flows from the first reactor 1 into the second reactor 2. At this time, a hydrogen absorption reaction occurs in the second reactor 2, releasing heat to the ambient temperature heat exchange fluid. When the pressure between the two reactors is balanced, the reaction stops, and the first electromagnetic cut-off valve Z1 is closed.

[0063] The third stage - precooling stage: The a end of the ninth electromagnetic three-way valve S9, the b end of the first electromagnetic three-way valve S1, the f end of the third electromagnetic three-way valve S3, and the c end of the tenth electromagnetic three-way valve S10 are opened. The d end of the second electromagnetic three-way valve S2 and the h end of the fourth electromagnetic three-way valve S4 are opened. The first electromagnetic cut-off valve Z1 and the second electromagnetic cut-off valve Z2 are closed. At this time, the heat exchange fluid flows into the reactor interior, the temperature of the first reactor 1 drops to the ambient temperature, and the temperature of the second reactor 2 drops to the temperature of the refrigeration working fluid.

[0064] The third stage - working stage: The second electromagnetic cut-off valve Z2 is opened. Due to the difference in the properties of the hydrogen storage alloy, a dehydrogenation reaction occurs in the second reactor 2, absorbing the heat of the heat exchange fluid. Hydrogen flows from the first reactor 1 into the second reactor 2, and a hydrogen absorption reaction occurs in the second reactor 2, releasing heat to the heat exchange fluid. The temperature of the refrigeration working fluid decreases during this process. The entire system achieves the refrigeration purpose.

[0065] After that, the system enters the next cycle.

[0066] Heating operation steps:

[0067] Initialization: Hydrogen reacts with the hydrogen storage alloy in the first reactor 1 to form metal hydride, which is stored in the first reactor 1. The hydrogen storage alloy in the second reactor 2 does not combine with hydrogen and exists only in the form of an alloy. At this time, all electromagnetic shut-off valves are closed, and hydrogen does not flow between the two reactors. All electromagnetic three-way valves are closed, and no heat exchange fluid flows into the reactors.

[0068] The first stage - preheating stage: The a-end of the eleventh electromagnetic three-way valve S11, the b-end of the fifth electromagnetic three-way valve S5, the f-end of the seventh electromagnetic three-way valve S7, and the c-end of the twelfth electromagnetic three-way valve S12 are opened. The d-end of the sixth electromagnetic three-way valve S6 and the h-end of the eighth electromagnetic three-way valve S8 are opened. All shut-off valves (the third electromagnetic shut-off valve Z3 and the fourth electromagnetic shut-off valve Z4) are closed. The medium-temperature fluid enters the first reactor 1, causing the internal temperature of the reactor to tend to the medium-temperature. At this time, a dehydrogenation reaction occurs inside the first reactor 1, and the pressure increases. The low-temperature fluid flows into the second reactor 2, causing the internal temperature of the second reactor 2 to tend to the low-temperature.

[0069] The second stage - energy charging stage: The shut-off valve Z3 is opened. Due to the pressure difference, hydrogen flows from the first reactor 1 into the second reactor 2. The second reactor 2 undergoes a hydrogen absorption reaction and releases heat, and the low-temperature heat exchange fluid absorbs heat and flows out. After the pressure balance is reached between the reactors, the third shut-off valve Z3 is closed.

[0070] The third stage - preheating stage: The a-end of the fifth electromagnetic three-way valve S5 and the e-end of the seventh electromagnetic three-way valve S7 are opened. The b-end of the eleventh electromagnetic three-way valve S11, the c-end of the sixth electromagnetic three-way valve S6, the g-end of the eighth electromagnetic three-way valve S8, and the d-end of the twelfth electromagnetic three-way valve S12 are opened. All shut-off valves (the third electromagnetic shut-off valve Z3 and the fourth electromagnetic shut-off valve Z4) remain closed. The medium-temperature fluid flows into the second reactor 2, causing the internal pressure of the second reactor 2 to increase. The high-temperature fluid flows into the first reactor 1, causing the internal temperature of the first reactor 1 to tend to the high-temperature.

[0071] The fourth stage - working stage: The fourth shut-off valve Z4 is opened. Due to the pressure difference, hydrogen flows from the second reactor 2 into the first reactor 1. At this time, a hydrogen absorption reaction occurs inside the second reactor 2, releasing heat, which is absorbed by the high-temperature heat exchange fluid, and the fluid temperature increases, achieving the purpose of heating.

[0072] After that, the system enters the next cycle.

[0073] Module combination operation steps:

[0074] Refrigeration module combination:

[0075] Initialization: Hydrogen reacts with the hydrogen storage alloy in the first reactor 1 and the fourth reactor 4 to form metal hydride for storage. The hydrogen storage alloy in the second reactor 2 and the third reactor 3 does not combine with hydrogen and exists only in the form of alloy. At this time, all electromagnetic cut-off valves (the first electromagnetic cut-off valve Z1, the second electromagnetic cut-off valve Z2, the third electromagnetic cut-off valve Z3, and the fourth electromagnetic cut-off valve Z4) are closed, and hydrogen does not flow between the reactors.

[0076] All electromagnetic three-way valves (the first electromagnetic three-way valve S1, the second electromagnetic three-way valve S2, the third electromagnetic three-way valve S3, the fourth electromagnetic three-way valve S4, the fifth electromagnetic three-way valve S5, the sixth electromagnetic three-way valve S6, the seventh electromagnetic three-way valve S7, the eighth electromagnetic three-way valve S8, the ninth electromagnetic three-way valve S9, the tenth electromagnetic three-way valve S10, the eleventh electromagnetic three-way valve S11, and the twelfth electromagnetic three-way valve S12) are closed, and no heat exchange fluid flows into the reactors.

[0077] Process 1 - A preparation for B operation: The a end of the first electromagnetic three-way valve S1, the e end of the third electromagnetic three-way valve S3, the b end of the ninth electromagnetic three-way valve S9, the c end of the second electromagnetic three-way valve S2, the g end of the fourth electromagnetic three-way valve S4, and the d end of the tenth electromagnetic three-way valve S10 are opened; the e end of the eleventh electromagnetic three-way valve S11, the b end of the fifth electromagnetic three-way valve S5, the f end of the seventh electromagnetic three-way valve S7, and the g end of the twelfth electromagnetic three-way valve S12 are opened; the d end of the sixth electromagnetic three-way valve S6 and the h end of the eighth electromagnetic three-way valve S8 are opened; medium-temperature fluid flows into the second reactor 2 and the third reactor 3, high-temperature fluid flows into the first reactor 1, and refrigerating fluid flows into the fourth reactor 4. When the internal pressure of the reactors reaches a certain value, the valves Z1 and Z3 are opened, and hydrogen flows into the second reactor 2 and the third reactor 3, and the hydrogen absorption reaction occurs. The temperature of the medium-temperature fluid at the outlets of the second reactor 2 and the third reactor 3 increases. During this process, the fluid flowing out from the h end of the eighth electromagnetic three-way valve S8 is the refrigerated fluid, realizing the refrigeration operation.

[0078] Process 2-A Working B Preparation: The a-end of the ninth electromagnetic three-way valve S9, the b-end of the first electromagnetic three-way valve S1, the f-end of the third electromagnetic three-way valve S3, and the c-end of the tenth electromagnetic three-way valve S10 are opened, and the d-end of the second electromagnetic three-way valve S2 and the h-end of the fourth electromagnetic three-way valve S4 are opened; the a-end of the fifth electromagnetic three-way valve S5 and the e-end of the seventh electromagnetic three-way valve S7 are opened, and the f-end of the eleventh electromagnetic three-way valve S11, the c-end of the sixth electromagnetic three-way valve S6, the g-end of the eighth electromagnetic three-way valve S8, and the h-end of the twelfth electromagnetic three-way valve S12 are opened; the medium-temperature fluid flows into the first reactor 1 and the fourth reactor 4, the high-temperature fluid flows into the third reactor 3, and the refrigeration fluid flows into the second reactor 2. When the internal pressures of the second reactor 2 and the third reactor 3 reach a certain value, the second electromagnetic shut-off valve Z2 and the third electromagnetic shut-off valve Z3 are opened, and hydrogen flows into the first reactor 1 and the fourth reactor 4, and the hydrogen absorption reaction occurs, and the temperature of the medium-temperature fluid at the outlets of the first reactor 1 and the fourth reactor 4 increases. During this process, the fluid flowing out from the h-end of the fourth electromagnetic three-way valve S4 is the refrigerated fluid. These two processes achieve continuous refrigeration operation.

[0079] Heating Module Combination:

[0080] Initialization: Hydrogen reacts with the hydrogen storage alloy in the first reactor 1 and the fourth reactor 4 to form metal hydride for storage, and the hydrogen storage alloy in the second reactor 2 and the third reactor 3 does not combine with hydrogen and exists only in the form of an alloy. At this time, all electromagnetic shut-off valves (the same as above) are closed, and hydrogen does not flow between the reactors. All electromagnetic three-way valves (the first electromagnetic three-way valve S1, the second electromagnetic three-way valve S2, the third electromagnetic three-way valve S3, the fourth electromagnetic three-way valve S4, the fifth electromagnetic three-way valve S5, the sixth electromagnetic three-way valve S6, the seventh electromagnetic three-way valve S7, the eighth electromagnetic three-way valve S8, the ninth electromagnetic three-way valve S9, the tenth electromagnetic three-way valve S10, the eleventh electromagnetic three-way valve S11, and the twelfth electromagnetic three-way valve S12) are closed, and no heat exchange fluid flows into the reactors.

[0081] Process 1-A Preparation for B Operation: The a-end of the ninth electromagnetic three-way valve S9, the b-end of the first electromagnetic three-way valve S1, the f-end of the third electromagnetic three-way valve S3, and the c-end of the tenth electromagnetic three-way valve S10 are opened. The d-end of the second electromagnetic three-way valve S2 and the h-end of the fourth electromagnetic three-way valve S4 are opened. The a-end of the fifth electromagnetic three-way valve S5 and the e-end of the seventh electromagnetic three-way valve S7 are opened. The f-end of the eleventh electromagnetic three-way valve S11, the c-end of the sixth electromagnetic three-way valve S6, the g-end of the eighth electromagnetic three-way valve S8, and the h-end of the twelfth electromagnetic three-way valve S12 are opened. The medium-temperature fluid flows into the first reactor 1 and the fourth reactor 4, the heating fluid flows into the third reactor 3, and the low-temperature fluid flows into the second reactor 2. The dehydrogenation reaction occurs inside the first reactor 1 and the fourth reactor 4, and the pressure increases. When the pressure inside the first reactor 1 and the fourth reactor 4 reaches a certain value, the valves Z1 and Z3 are opened, and hydrogen flows into the second reactor 2 and the third reactor 3, where the hydrogen absorption reaction occurs with heat release, and the temperature of the medium-temperature fluid at the outlets of the second reactor 2 and the third reactor 3 increases. During this process, the fluid flowing out from the e-end of the seventh electromagnetic three-way valve S7 is the heated fluid, realizing the heating operation.

[0082] Process 2-A Preparation for B Operation: The a-end of the first electromagnetic three-way valve S1 and the e-end of the third electromagnetic three-way valve S3 are opened. The b-end of the ninth electromagnetic three-way valve S9, the c-end of the second electromagnetic three-way valve S2, the g-end of the fourth electromagnetic three-way valve S4, and the d-end of the tenth electromagnetic three-way valve S10 are opened. The e-end of the eleventh electromagnetic three-way valve S11, the b-end of the fifth electromagnetic three-way valve S5, the f-end of the seventh electromagnetic three-way valve S7, and the g-end of the twelfth electromagnetic three-way valve S12 are opened. The d-end of the sixth electromagnetic three-way valve S6 and the h-end of the eighth electromagnetic three-way valve S8 are opened. The medium-temperature fluid flows into the second reactor 2 and the third reactor 3, the heating fluid flows into the first reactor 1, and the low-temperature fluid flows into the fourth reactor 4. The dehydrogenation reaction occurs inside the second reactor 2 and the third reactor 3, and the pressure increases. When the pressure inside the second reactor 2 and the third reactor 3 reaches a certain value, the second electromagnetic shut-off valve Z2 and the fourth electromagnetic shut-off valve Z4 are opened, and hydrogen flows into the first reactor 1 and the fourth reactor 4, where the hydrogen absorption reaction occurs with heat release, and the temperature of the medium-temperature fluid at the outlets of the first reactor 1 and the fourth reactor 4 increases. During this process, the fluid flowing out from the e-end of the third electromagnetic three-way valve S3 is the heated fluid, and the two processes realize continuous heating operation.

[0083] Refrigeration and Heating Module Combination:

[0084] Initialization: Hydrogen reacts with the hydrogen storage alloy in the first reactor 1 and the third reactor 3 to form metal hydride for storage. The hydrogen storage alloy in the second reactor 2 and the fourth reactor 4 does not combine with hydrogen and exists only in the form of alloy. At this time, all electromagnetic cut-off valves (the first electromagnetic cut-off valve Z1, the second electromagnetic cut-off valve Z2, the third electromagnetic cut-off valve Z3, and the fourth electromagnetic cut-off valve Z4) are closed, and hydrogen does not flow between all reactors. All electromagnetic three-way valves (the first electromagnetic three-way valve S1, the second electromagnetic three-way valve S2, the third electromagnetic three-way valve S3, the fourth electromagnetic three-way valve S4, the fifth electromagnetic three-way valve S5, the sixth electromagnetic three-way valve S6, the seventh electromagnetic three-way valve S7, the eighth electromagnetic three-way valve S8, the ninth electromagnetic three-way valve S9, the tenth electromagnetic three-way valve S10, the eleventh electromagnetic three-way valve S11, and the twelfth electromagnetic three-way valve S12) are closed, and no heat exchange fluid flows into all reactors (the first reactor 1, the second reactor 2, the third reactor 3, and the fourth reactor 4).

[0085] The first stage - preheating stage: The a end of the ninth electromagnetic three-way valve S9, the b end of the first electromagnetic three-way valve S1, the f end of the third electromagnetic three-way valve S3, and the c end of the tenth electromagnetic three-way valve S10 are opened, and the d end of the second electromagnetic three-way valve S2 and the h end of the fourth electromagnetic three-way valve S4 are opened; the a end of the fifth electromagnetic three-way valve S5 and the e end of the seventh electromagnetic three-way valve S7 are opened, and the f end of the eleventh electromagnetic three-way valve S11, the c end of the sixth electromagnetic three-way valve S6, the g end of the eighth electromagnetic three-way valve S8, and the h end of the twelfth electromagnetic three-way valve S12 are opened. During this process, the medium-temperature fluid enters the first reactor 1 and the fourth reactor 4, the refrigerating fluid enters the second reactor 2, and the heating fluid enters the third reactor 3. The internal temperature of the reactors (the first reactor 1, the second reactor 2, the third reactor 3, and the fourth reactor 4) tends to the temperature of the heat exchange fluid. At the same time, dehydrogenation reactions occur in the first reactor 1 and the third reactor 3, and the internal pressure of the reactors increases.

[0086] The second stage - energy charging stage: The Z1 and Z3 valves are opened, and hydrogen flows. Due to the pressure difference, hydrogen in the first reactor 1 flows into the second reactor 2, and hydrogen in the third reactor 3 flows into the fourth reactor 4. Hydrogen absorption reactions occur in the second reactor 2 and the fourth reactor 4, releasing heat to the heat exchange fluid. After the pressure is balanced between all reactors (the first reactor 1, the second reactor 2, the third reactor 3, and the fourth reactor 4), all valves are closed.

[0087] The third stage - preheating stage: The a - end of the first electromagnetic three - way valve S1 and the e - end of the third electromagnetic three - way valve S3 are opened. The b - end of the ninth electromagnetic three - way valve S9, the c - end of the second electromagnetic three - way valve S2, the g - end of the fourth electromagnetic three - way valve S4, and the d - end of the tenth electromagnetic three - way valve S10 are opened; The e - end of the eleventh electromagnetic three - way valve S11, the b - end of the fifth electromagnetic three - way valve S5, the f - end of the seventh electromagnetic three - way valve S7, and the g - end of the twelfth electromagnetic three - way valve S12 are opened. The d - end of the sixth electromagnetic three - way valve S6 and the h - end of the eighth electromagnetic three - way valve S8 are opened. During this process, the medium - temperature fluid enters the second reactor 2 and the third reactor 3, the refrigerating fluid enters the fourth reactor 4, and the heating fluid enters the first reactor 1. The internal temperatures of all reactors (the first reactor 1, the second reactor 2, the third reactor 3, and the fourth reactor 4) tend to the temperature of the heat - exchange fluid. At the same time, dehydrogenation reactions occur in the second reactor 2 and the fourth reactor 4, absorbing heat from the heat - exchange fluid and increasing the internal pressure of the reactors.

[0088] The above three stages can be called the preparation stage: The first electromagnetic stop valve Z1,

[0089] The fourth stage - working stage: The second electromagnetic stop valve Z2 and the fourth electromagnetic stop valve Z4 are opened, and hydrogen flows through. Due to the pressure difference, hydrogen in the second reactor 2 flows into the first reactor 1, and hydrogen in the fourth reactor 4 flows into the third reactor 3. Hydrogen absorption reactions occur in the first reactor 1, the second reactor 2, and the third reactor 3, releasing heat to the heat - exchange fluid. During this process, the f - end of the third electromagnetic three - way valve S3 outputs the target fluid after heating, and the h - end of the eighth electromagnetic three - way valve S8 outputs the target fluid after refrigeration.

[0090] Specific technical solutions: Temperature and pressure sensors provide monitoring data to ensure the optimal operation state of the system. The temperature sensor monitors the internal temperature of the reactor and the temperature of the heat - exchange fluid, and the pressure sensor monitors the internal pressure of the reactor to prevent abnormal pressure or temperature in the reactor due to unexpected reasons. At the same time, it provides data basis for controlling the opening and closing of valves. The temperature and pressure sensors are arranged on the hydrogen - flow pipeline between each reactor, at the upstream position of the electromagnetic stop valve. The temperature and pressure sensors include the first temperature and pressure sensor M1, the second temperature and pressure sensor M2, the third temperature and pressure sensor M3, and the fourth temperature and pressure sensor M4.

[0091] To meet the refrigeration and heating requirements of the heat pump in practical applications, the effect of reducing the cold - source temperature and increasing the heat - source temperature is achieved through the mutual coupling of a pair of solid - state hydrogen - storage heat - exchange devices. Example: During the heating process of the system (using Na 3 Al H 6 and LaN i 5 as the basis for their respective reactors), it absorbs heat from the medium - temperature heat source (about 50 °C) and releases heat to the high - temperature heat source (80 - 90 °C). During the refrigeration process of the system (using T i0.95 Zr 0.05 Mn 1.46 V 0.41 Fe 0.09 Cr 0.05 With LaNi 4.75 Al 0.25 As the basis of their respective reactors, with the low-temperature heat source temperature required to be 10°C - 20°C, the medium-temperature heat source temperature to be 30°C - 40°C, and the high-temperature heat source temperature to be 120°C - 170°C), it can be driven by external waste heat and absorb heat from the cold source environment.

[0092] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A dual-base solid-state hydrogen storage heat pump system, characterized in that: Contains cooling operation mode, heating operation mode and module combination operation mode. Refrigeration operation mode: Simple solid-state hydrogen storage heat pump system refrigeration module, divided into the first reactor and the second reactor, the external environment is simplified to the heat source drive system, the ambient temperature system, the working refrigeration system, including six electromagnetic three-way valves, two hydrogen flow pipes, two air flow check valves that control the one-way flow of the pipes, two electromagnetic stop valves that control the pipe switches, and the pressure sensor controls the valve opening and closing. The first reactor operates under high temperature conditions, and the second reactor operates under low temperature conditions. Heating operation mode: Heating operation requires a different hydrogen storage alloy pair from cooling operation. The selection of hydrogen storage alloy pairs is related to the working temperature and is selected according to the van't Hoff diagram of metal hydrides. The module has two electromagnetic three-way valves, two pipes for hydrogen flow, two air flow check valves for controlling the one-way flow of the pipes, two electromagnetic stop valves for controlling the pipe switches, and pressure sensors to control the opening and closing of the valves. The first reactor operates under high temperature conditions, and the second reactor operates under low temperature conditions. Module combination operation mode: Module combination operation is divided into the combination of cooling module and heating module and the combination of the same cooling (heating) module to achieve continuous cooling (heating) effect.

2. A dual-base solid-state hydrogen storage heat pump system according to claim 1, characterized in that: Refrigeration module combination: The first reactor and the second reactor are the first working group, and the third reactor and the fourth reactor are the second working group. When the first working group is refrigerating, the second working group is preparing for refrigeration; when the first working group is preparing for refrigeration, the second working group is refrigerating. It includes 12 electromagnetic three-way valves, 4 electromagnetic stop valves, and 4 gas one-way flow valves. The valves are opened and closed by pressure sensors. Heating module combination: one side of the first reactor is connected to the fifth electromagnetic three-way valve, the other side of the first reactor is connected to the seventh electromagnetic three-way valve, one side of the second reactor is connected to the sixth electromagnetic three-way valve, the other side of the second reactor is connected to the eighth electromagnetic three-way valve, one channel between the first reactor and the second reactor is connected in series with the third electromagnetic stop valve and the third airflow check valve, the other channel between the first reactor and the second reactor is connected in series with the fourth airflow check valve and the fourth electromagnetic stop valve, the channel between the fifth electromagnetic three-way valve and the sixth electromagnetic three-way valve is connected with the eleventh electromagnetic three-way valve, and the channel between the fifth electromagnetic three-way valve and the sixth electromagnetic three-way valve is connected with the eleventh electromagnetic three-way valve. The twelfth solenoid three-way valve is connected to the channel between the seventh solenoid three-way valve and the eighth solenoid three-way valve, the eleventh solenoid three-way valve is connected to the second pump, the other side of the fifth solenoid three-way valve is connected to the third pump, the other side of the sixth solenoid three-way valve is connected to the first pump, one side of the seventh solenoid three-way valve is connected to the high-temperature device, one side of the eighth solenoid three-way valve and one side of the twelfth solenoid three-way valve are connected to the device determined according to actual conditions, one side of the second pump and one end of the tenth solenoid three-way valve are connected to the medium-temperature device, one side of the first pump is connected to the low-temperature device, and one side of the third pump is connected to the high-temperature device. The cooling and heating modules are combined with each other: the first reactor and the second reactor form a heating group, and the third reactor and the fourth reactor form a cooling group. The two groups operate in their respective modes without affecting each other. Structurally, they are connected to the heat source through heat exchange fluid pipelines. The operation of the two systems is controlled simultaneously by controlling the opening and closing of each valve, including 12 solenoid three-way valves, 4 solenoid stop valves, and 4 gas one-way flow valves. The valves are opened and closed by pressure sensors.

3. A dual-base solid-state hydrogen storage heat pump system according to claim 1, characterized in that: Two first airflow one-way valves and a second airflow one-way valve for controlling the one-way flow of the pipeline, and two first electromagnetic stop valves and a second electromagnetic stop valve for controlling the opening and closing of the pipeline.

4. A dual-base solid-state hydrogen storage heat pump system according to claim 1, characterized in that: It includes a first electromagnetic three-way valve, a second electromagnetic three-way valve, a third electromagnetic three-way valve, a fourth electromagnetic three-way valve, a fifth electromagnetic three-way valve, a sixth electromagnetic three-way valve, a seventh electromagnetic three-way valve, an eighth electromagnetic three-way valve, a ninth electromagnetic three-way valve, a tenth electromagnetic three-way valve, an eleventh electromagnetic three-way valve, a twelfth electromagnetic three-way valve, a first electromagnetic stop valve, a second electromagnetic stop valve, a third electromagnetic stop valve, a fourth electromagnetic stop valve, a first gas one-way flow valve, a second gas one-way flow valve, a third gas one-way flow valve, and a fourth gas one-way flow valve.

5. A dual-base solid-state hydrogen storage heat pump system according to claim 1, characterized in that: The first reactor and the second reactor form a heating group, and the third reactor and the fourth reactor form a cooling group. The two groups operate in their respective modes without affecting each other. Structurally, the heat source is connected through a heat exchange fluid pipeline, and the operation of the two systems is controlled simultaneously by controlling the opening and closing of each valve, including a first electromagnetic three-way valve, a second electromagnetic three-way valve, a third electromagnetic three-way valve, a fourth electromagnetic three-way valve, a fifth electromagnetic three-way valve, a sixth electromagnetic three-way valve, a seventh electromagnetic three-way valve, an eighth electromagnetic three-way valve, a ninth electromagnetic three-way valve, a tenth electromagnetic three-way valve, an eleventh electromagnetic three-way valve, a twelfth electromagnetic three-way valve, a first electromagnetic stop valve, a second electromagnetic stop valve, a third electromagnetic stop valve, a fourth electromagnetic stop valve, a first gas one-way flow valve, a second gas one-way flow valve, a third gas one-way flow valve, and a fourth gas one-way flow valve.

6. A dual-base solid-state hydrogen storage heat pump method, characterized in that: Contains the following steps: The first solid-state hydrogen storage reactor is the main device for the reaction of hydrogen storage alloy and hydrogen, and the heat exchange fluid absorbs and releases heat. During heating operation, the hydrogen storage alloy in the first reactor reacts with the hydrogen from the second reactor to generate metal hydride. In this process, the high-temperature heat exchange fluid absorbs the reaction and releases heat, and the temperature rises. During cooling operation, the hydrogen storage alloy in the first reactor absorbs high-temperature waste heat, dehydrogenation reaction occurs, and the gas pressure inside the reactor increases, driving the entire system to operate. During heating operation, the metal hydride in the second reactor absorbs heat from the medium-temperature heat exchange fluid and undergoes a dehydrogenation reaction. During cooling operation, the second reactor undergoes a dehydrogenation reaction and absorbs heat from the low-temperature heat exchange fluid. The electromagnetic three-way valve switches the heat exchange fluid flow channel as needed, and introduces high-temperature fluid or low-temperature fluid into the reactor to control the reaction between hydrogen and metal alloy inside the reactor. The throttle valve is controlled by the valve opening to control the flow of hydrogen between the two reactors, and the reaction time and reaction degree of each reactor. The gas flow check valve prevents hydrogen from flowing back. Temperature and pressure sensors provide monitoring data to ensure the optimal operation of the system. The temperature sensor monitors the temperature inside the reactor and the heat exchange fluid. The pressure sensor monitors the internal pressure of the reactor to prevent the reactor from causing abnormal pressure or temperature due to unexpected reasons. At the same time, it provides data basis for controlling the opening and closing of valves.

7. A double-base solid-state hydrogen storage heat pump method according to claim 6, characterized in that: Contains the following steps: Refrigeration operation steps: Initialization: Hydrogen reacts with the hydrogen storage alloy in the first reactor to form metal hydride which is stored in the first reactor. The hydrogen storage alloy in the second reactor does not combine with hydrogen and exists only in the form of alloy. At this time, all electromagnetic stop valves are closed, hydrogen does not flow between the two reactors, all electromagnetic three-way valves are closed, and no heat exchange fluid flows into the reactor. Phase 1 - Warm-up phase: The first electromagnetic three-way valve a and the third electromagnetic three-way valve e are opened, the ninth electromagnetic three-way valve b, the second electromagnetic three-way valve c, the fourth electromagnetic three-way valve g, and the tenth electromagnetic three-way valve d are opened, and the first electromagnetic stop valve and the second electromagnetic stop valve are closed. At this time, the heat exchange fluid flows into the reactor, and the temperature in the first reactor rises to the hydrogen desorption temperature. Hydrogen decomposition reaction occurs in the first reactor, absorbing heat from the heat exchange fluid, and the internal pressure of the first reactor increases. A fluid at ambient temperature is introduced into the second reactor, and the temperature in the second reactor approaches the ambient temperature. The second stage - recovery stage: the first electromagnetic stop valve is opened, and hydrogen flows from the first reactor into the second reactor due to the pressure difference. At this time, a hydrogen absorption reaction occurs in the second reactor, and heat is released to the ambient temperature heat exchange fluid. When the pressure between the two reactors is balanced, the reaction stops, and the first electromagnetic stop valve is closed. The third stage - pre-cooling stage: the ninth electromagnetic three-way valve a end, the first electromagnetic three-way valve b end, the third electromagnetic three-way valve f end, and the tenth electromagnetic three-way valve c end are opened, the second electromagnetic three-way valve d end and the fourth electromagnetic three-way valve h end are opened, and the first electromagnetic stop valve and the second electromagnetic stop valve are closed. At this time, the heat exchange fluid flows into the reactor, the temperature of the first reactor drops to the ambient temperature, and the temperature of the second reactor drops to the temperature of the refrigeration working fluid. The third stage - working stage: the electromagnetic stop valve is opened. Due to the difference in the properties of the hydrogen storage alloy, a dehydrogenation reaction occurs in the second reactor, absorbing the heat of the heat exchange fluid. Hydrogen flows from the first reactor into the second reactor, and a hydrogen absorption reaction occurs in the second reactor, releasing heat to the heat exchange fluid. In this process, the temperature of the refrigeration working fluid decreases, and the entire system achieves the purpose of refrigeration. After that, the system enters the next cycle.

8. A dual-base solid-state hydrogen storage heat pump method according to claim 7, characterized in that: Contains the following steps: Heating operation steps: Initialization: Hydrogen reacts with the hydrogen storage alloy in the first reactor to form metal hydride which is stored in the first reactor. The hydrogen storage alloy in the second reactor does not combine with hydrogen and exists only in the form of alloy. At this time, all electromagnetic stop valves are closed, hydrogen does not flow between the two reactors, all electromagnetic three-way valves are closed, and no heat exchange fluid flows into the reactor. The first stage - preheating stage: the eleventh electromagnetic three-way valve a, the fifth electromagnetic three-way valve b, the seventh electromagnetic three-way valve f, and the twelfth electromagnetic three-way valve c are opened, the sixth electromagnetic three-way valve d and the eighth electromagnetic three-way valve h are opened, and the stop valve is closed. The medium-temperature fluid enters the first reactor, causing the internal temperature of the reactor to approach the medium temperature. At this time, the dehydrogenation reaction pressure in the first reactor increases, and the low-temperature fluid flows into the second reactor, causing the internal temperature of the second reactor to approach the low temperature. The second stage - charging stage: the third stop valve is opened, hydrogen flows from the first reactor into the second reactor due to the pressure difference, the second reactor undergoes a hydrogen absorption reaction and releases heat, and the low-temperature heat exchange fluid absorbs heat and flows out. When the pressure between the reactors reaches equilibrium, the third stop valve is closed. The third stage - preheating stage: the fifth electromagnetic three-way valve a end and the seventh electromagnetic three-way valve e end are opened, the eleventh electromagnetic three-way valve b end, the sixth electromagnetic three-way valve c end, the eighth electromagnetic three-way valve g end and the twelfth electromagnetic three-way valve d end are opened, and the stop valve remains closed. The medium-temperature fluid flows into the second reactor, causing the internal pressure of the second reactor to increase, and the high-temperature fluid flows into the first reactor, causing the internal temperature of the first reactor to tend to the high temperature. The fourth stage - working stage: the fourth stop valve is opened, and hydrogen flows from the second reactor into the first reactor due to the pressure difference. At this time, a hydrogen absorption reaction occurs inside the second reactor to release heat, and the heat is absorbed by the high-temperature heat exchange fluid, and the fluid temperature increases, achieving the purpose of heating, and then entering the next cycle.

9. A double-base solid-state hydrogen storage heat pump method according to claim 6, characterized in that: Contains the following steps: Refrigeration module combination: Initialization: Hydrogen reacts with the hydrogen storage alloy in the first reactor and the fourth reactor to form metal hydride for storage. The hydrogen storage alloy in the second reactor and the third reactor does not combine with hydrogen and exists only in the form of alloy. At this time, all electromagnetic stop valves are closed, hydrogen does not flow between the reactors, all electromagnetic three-way valves are closed, and no heat exchange fluid flows into the reactor. Process 1-A prepares for work B: the a end of the first electromagnetic three-way valve and the e end of the third electromagnetic three-way valve are opened, the b end of the ninth electromagnetic three-way valve, the c end of the second electromagnetic three-way valve, the g end of the fourth electromagnetic three-way valve, and the d end of the tenth electromagnetic three-way valve are opened; the e end of the eleventh electromagnetic three-way valve, the b end of the fifth electromagnetic three-way valve, the f end of the seventh electromagnetic three-way valve, and the g end of the twelfth electromagnetic three-way valve are opened, and the d end of the sixth electromagnetic three-way valve and the h end of the eighth electromagnetic three-way valve are opened; the medium-temperature fluid flows into the second reactor and the third reactor, the high-temperature fluid flows into the first reactor, and the refrigeration fluid flows into the fourth reactor. When the internal pressure of the first reactor and the fourth reactor reaches a certain value, the first electromagnetic stop valve and the fourth electromagnetic stop valve are opened, and hydrogen flows into the second reactor and the third reactor, and a hydrogen absorption reaction occurs. The temperature of the medium-temperature fluid at the outlet of the second reactor and the third reactor increases. In this process, the fluid flowing out of the h end of the eighth electromagnetic three-way valve is refrigerated fluid, and refrigeration work is realized. Process 2-A Work B Preparation: The ninth electromagnetic three-way valve a end, the first electromagnetic three-way valve b end, the third electromagnetic three-way valve f end, the tenth electromagnetic three-way valve c end are opened, the second electromagnetic three-way valve d end, the fourth electromagnetic three-way valve h end are opened; the fifth electromagnetic three-way valve a end, the seventh electromagnetic three-way valve e end are opened, the eleventh electromagnetic three-way valve f end, the sixth electromagnetic three-way valve c end, the eighth electromagnetic three-way valve g end, the twelfth electromagnetic three-way valve h end are opened; the medium-temperature fluid flows into the first reactor and the fourth reactor, the high-temperature fluid flows into the third reactor, and the refrigeration fluid flows into the second reactor. When the internal pressure of the second reactor and the third reactor reaches a certain value, the second electromagnetic stop valve and the third electromagnetic stop valve are opened, and hydrogen flows into the first reactor and the fourth reactor, and a hydrogen absorption reaction occurs. The temperature of the medium-temperature fluid at the outlet of the first reactor and the fourth reactor increases. In this process, the fluid flowing out of the h end of the fourth electromagnetic three-way valve is refrigerated fluid. The two processes realize continuous refrigeration work. Heating module combination: one side of the first reactor is connected to the fifth electromagnetic three-way valve, the other side of the first reactor is connected to the seventh electromagnetic three-way valve, one side of the second reactor is connected to the sixth electromagnetic three-way valve, the other side of the second reactor is connected to the eighth electromagnetic three-way valve, one channel between the first reactor and the second reactor is connected in series with the third electromagnetic stop valve and the third airflow check valve, the other channel between the first reactor and the second reactor is connected in series with the fourth airflow check valve and the fourth electromagnetic stop valve, the channel between the fifth electromagnetic three-way valve and the sixth electromagnetic three-way valve is connected with the eleventh electromagnetic three-way valve, and the channel between the fifth electromagnetic three-way valve and the sixth electromagnetic three-way valve is connected with the eleventh electromagnetic three-way valve. The twelfth solenoid three-way valve is connected to the channel between the seventh solenoid three-way valve and the eighth solenoid three-way valve, the eleventh solenoid three-way valve is connected to the second pump, the other side of the fifth solenoid three-way valve is connected to the third pump, the other side of the sixth solenoid three-way valve is connected to the first pump, one side of the seventh solenoid three-way valve is connected to a high-temperature device, one side of the eighth solenoid three-way valve and one side of the twelfth solenoid three-way valve are connected to a device determined according to actual conditions, one side of the second pump and one end of the tenth solenoid three-way valve are connected to a medium-temperature device, one side of the first pump is connected to a low-temperature device, and one side of the third pump is connected to a high-temperature device.

10. A double-base solid-state hydrogen storage heat pump method according to claim 9, characterized in that: The method comprises the following steps: the fourth stage - the working stage: the first electromagnetic stop valve and the fourth electromagnetic stop valve are opened, hydrogen flows, the hydrogen in the first reactor flows into the second reactor, the hydrogen in the fourth reactor flows into the third reactor, a hydrogen absorption reaction occurs in the second reactor and the third reactor, heat is released to the heat exchange fluid, the third electromagnetic three-way valve f end outputs the heated target fluid, and the eighth electromagnetic three-way valve end outputs the cooled target fluid.

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