A solid hydrogen storage and refueling device

Abstract

This invention relates to the field of solid-state hydrogen storage technology and discloses a solid-state hydrogen refueling device. A winding mechanism is installed on one side of the chamber of the refueling skid, a pressure regulating mechanism is installed at the bottom of the chamber of the pressure buffer tank, and a pressure relief and dilution mechanism penetrating the refueling skid is installed at the top of the chamber of the pressure buffer tank. Based on the winding characteristics of the winding mechanism, this invention connects the inlet pipeline to the solid-state hydrogen equipment, guiding the vaporized hydrogen gas. The hydrogen gas is refueled into the hydrogen storage equipment through a combination of an inlet hose, a guide pipe, a pressure buffer tank, and an exhaust pipe. Simultaneously, three sets of flow meters are used to monitor the flow rate at multiple points along the refueling pipeline. Under the dynamic pressure regulation of the pressure regulating mechanism within the pressure buffer tank, the hydrogen gas at the inlet and outlet remains consistent, improving the accuracy of refueling measurement and monitoring, while simultaneously meeting the refueling requirements of different models and specifications of solid-state hydrogen.

Description

Technical Field

[0001] This invention relates to the field of solid-state hydrogen storage technology, specifically a solid-state hydrogen storage refueling device. Background Technology

[0002] Solid-state hydrogen storage is a hydrogen energy storage technology that converts hydrogen gas into solid metal hydrides through a chemical reaction, thereby achieving high-density, low-pressure, leak-free, and safe storage. Compared with traditional gaseous hydrogen storage systems, this technology has higher hydrogen storage density and lower operating pressure, improving storage efficiency and energy utilization. The advantages of solid-state hydrogen storage technology also include high-density hydrogen storage capacity, storage at normal temperature and pressure, good safety, and easy transportation. These features make the widespread application of solid-state hydrogen storage systems in the hydrogen energy industry possible, especially in the fields of automobiles, energy storage, and industrial manufacturing.

[0003] With the maturation of solid-state hydrogen storage technology, solid-state hydrogen storage and supply systems are gradually being applied to hydrogen-powered machinery or vehicles such as hydrogen-powered forklifts. However, dedicated hydrogen refueling equipment for solid-state hydrogen storage is still underdeveloped. Solid-state refueling operations mainly rely on traditional manual or semi-automatic methods, which suffer from low refueling accuracy, low operational efficiency, and significant safety hazards. Although a few refueling devices have appeared on the market, they generally suffer from complex structures, cumbersome operation, and difficult maintenance, failing to meet the demands of modern, efficient refueling. Therefore, those skilled in the art have provided a solid-state hydrogen storage refueling device to address the problems mentioned in the background section. Summary of the Invention

[0004] The purpose of this invention is to provide a solid hydrogen storage and refueling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a solid hydrogen storage and refueling device, comprising a refueling skid;

[0006] A winding mechanism is installed on one side of the chamber of the filling skid, and a pressure buffer tank is installed on the other side of the chamber of the filling skid.

[0007] The winding and unwinding mechanism is connected to the pressure buffer tank via a guide pipe, and an air intake solenoid valve is installed at the inlet end of the winding and unwinding mechanism's pipe. An exhaust pipe is connected to the outlet end of the pressure buffer tank's pipe, and an exhaust solenoid valve is installed at the outlet end of the exhaust pipe.

[0008] The pressure buffer tank has a pressure regulating mechanism installed at the bottom of its chamber, and a pressure relief and dilution mechanism that passes through the filling skid is installed at the top of its chamber.

[0009] As a further embodiment of the present invention: the unwinding mechanism includes a support frame, the top of the support frame is rotatably connected to a winding frame, and an air inlet hose is wound and connected inside the ring frame of the winding frame, the outlet end of the air inlet hose is connected to an exhaust duct that passes through the central axis of the winding frame.

[0010] As a further embodiment of the present invention: a winding motor is installed on one side of the support frame, and a pulley B is installed at the output end of the winding motor; a pulley A is installed on one side of the central shaft of the winding frame, and pulley A and pulley B are connected by a transmission belt.

[0011] As a further embodiment of the present invention: a first flow meter is installed in the pipeline of the winding mechanism near the side of the inlet solenoid valve, a second flow meter is installed in the middle of the guide pipe, and a third flow meter is installed in the pipeline of the exhaust pipe near the side of the exhaust solenoid valve.

[0012] As a further embodiment of the present invention: an air inlet valve port connected to a guide pipe is installed in the middle of the pressure buffer tank, and an exhaust valve port connected to an exhaust pipe is installed at the upper end of the pressure buffer tank.

[0013] As a further embodiment of the present invention: the pressure regulating mechanism includes a transmission housing, a bottom support plate is installed at the bottom of the inner shell of the transmission housing, and a lifting push plate is slidably connected to the inner shell of the transmission housing. A transmission motor is installed in the middle of the plate surface of the lifting push plate, and a transmission gear is installed at the output end of the transmission motor. Multiple sets of synchronous gears are arranged and installed on the plate surface of the lifting push plate along the circumference of the transmission gears, and a transmission thread sleeve is installed through the shaft of the synchronous gears. The upper and lower ends of the sleeve of the transmission thread sleeve are symmetrically screwed with lifting screws that are fixedly connected to the bottom support plate and the pressure push head.

[0014] As a further embodiment of the present invention: multiple sets of synchronous gears are arranged symmetrically in a ring along the axis of the transmission gear, and the transmission gear and the synchronous gear are driven by meshing through a transfer gear.

[0015] As a further embodiment of the present invention: the threads of the two sets of lifting screws facing each other are arranged symmetrically in the forward and reverse directions, and the arm length of the two sets of lifting screws is the same as the sleeve length of the transmission screw sleeve.

[0016] As a further embodiment of the present invention: the inner wall of the transmission housing is provided with lifting guide rods arranged circumferentially to guide the lifting push plate.

[0017] As a further embodiment of the present invention: the pressure relief and dilution mechanism includes a pressure relief solenoid valve installed on the upper end of the pressure buffer tank body. A flow divider is installed at the valve port of the pressure relief solenoid valve. Multiple flow divider holes are arranged in the circumferential direction on the cylinder body of the flow divider. A rotating shaft is rotatably connected to the middle of the chamber of the flow divider. A vortex fan is provided on the outer side of the shaft shaft, which is opposite to the valve port of the pressure relief solenoid valve.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In the process of adding and storing solid hydrogen after heating and vaporization, this invention utilizes the winding and unwinding characteristics of the winding and unwinding mechanism to connect the inlet pipe to the solid hydrogen equipment, guiding the vaporized hydrogen gas. The hydrogen gas is then added to the hydrogen storage equipment through a combination of an inlet hose, a guide pipe, a pressure buffer tank, and an exhaust pipe. During the addition process, three sets of flow meters are used to monitor the flow rate at multiple points along the addition pipeline. Under the dynamic pressure regulation of the pressure regulating mechanism in the pressure buffer tank, the hydrogen gas at the inlet and outlet is kept consistent, improving the accuracy of the addition measurement and monitoring, while meeting the solid hydrogen addition requirements of different models and specifications.

[0020] 2. When storing solid hydrogen after heating and vaporization, this invention can control the closure of the inlet and outlet by electromagnetic braking of the inlet and outlet solenoid valves and the outlet solenoid valves when pipeline leakage or abnormal gas pressure occurs. Under the pressure support of the pressure regulating mechanism and the pressure relief and diversion of the pressure relief and dilution mechanism, the residual hydrogen in the filling device is depressurized and discharged, diluted with the atmospheric environment, to avoid excessive concentration and deflagration, thus ensuring safety during the filling process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a solid hydrogen storage and refueling device.

[0022] Figure 2 This is a partial cross-sectional view of a solid hydrogen storage and refueling device;

[0023] Figure 3 This is a schematic diagram of the winding and unwinding mechanism in a solid hydrogen storage refueling device.

[0024] Figure 4 This is a schematic diagram of the internal structure of a pressure buffer tank in a solid hydrogen storage and refueling device.

[0025] Figure 5 This is a schematic diagram of the pressure regulation mechanism in a solid hydrogen storage refueling device.

[0026] Figure 6 This is a partial cross-sectional view of a pressure regulating mechanism in a solid hydrogen storage and refueling device;

[0027] Figure 7 This is a schematic diagram of the pressure relief and dilution mechanism in a solid hydrogen storage refueling device.

[0028] In the diagram: 1. Filling skid; 2. Electrical control panel; 3. Inlet solenoid valve; 4. Exhaust solenoid valve; 5. Pressure relief and dilution mechanism; 51. Pressure relief solenoid valve; 52. Diverter cylinder; 53. Diverter outlet; 54. Vortex fan; 55. Shaft; 6. Winding mechanism; 61. Support frame; 62. Winding frame; 63. Inlet hose; 64. Exhaust duct; 65. Pulley A; 66. Drive belt; 67. Pulley B; 68. Winding motor; 7. First flow meter; 8. Flow guide. 9. Second flow meter; 10. Pressure buffer tank; 11. Exhaust pipe; 12. Third flow meter; 13. Inlet valve; 14. Exhaust valve; 15. Pressure regulating mechanism; 151. Transmission housing; 152. Pressure pusher; 153. Lifting guide rod; 154. Base support plate; 155. Lifting push plate; 156. Transmission motor; 157. Transmission gear; 158. Intermediate gear; 159. Synchronous gear; 1510. Transmission threaded sleeve; 1511. Lifting screw. Detailed Implementation

[0029] Please see Figures 1-7 In this embodiment of the invention, a solid hydrogen storage refueling device includes a refueling skid 1. A winding mechanism 6 is installed on one side of the chamber of the refueling skid 1. The winding mechanism 6 includes a support frame 61. A winding frame 62 is rotatably connected to the top of the support frame 61. An air inlet hose 63 is wound and connected inside the ring frame of the winding frame 62. The outlet end of the air inlet hose 63 is connected to an exhaust duct 64 that passes through the central axis of the winding frame 62. A winding motor 68 is installed on one side of the support frame 61. A pulley B67 is installed at the output end of the winding motor 68. A pulley A65 is installed on one side of the central shaft of device 2, and pulley A65 is connected to pulley B67 by a transmission belt 66. By controlling the operation of the winding motor 68, pulley B67 is driven to rotate. The transmission belt 66 drives pulley A65 to rotate, which in turn drives the winding frame 62 to rotate, and the air inlet hose 63 on it is wound out, so that the air inlet solenoid valve 3 can be flexibly connected to the solid hydrogen storage device. After the hydrogen is filled, the air inlet hose 63 can be wound back to minimize the interference from the external environment.

[0030] A first flow meter 7 is installed on the side of the pipeline of the winding mechanism 6 near the inlet solenoid valve 3, a second flow meter 9 is installed in the middle of the pipeline of the guide pipe 8, and a third flow meter 12 is installed on the side of the pipeline of the exhaust pipe 11 near the exhaust solenoid valve 4. The first flow meter 7 can monitor the flow rate at the hydrogen inlet, and the second flow meter 9 can monitor the flow rate in the hydrogen flow pipeline, so that it can maintain a dynamic linkage monitoring state with the hydrogen flow rate at the inlet. When there is a deviation between the two, it can detect that there is a leak or abnormal gas pressure in the flow pipeline, so that the staff can stop the filling work immediately. The third flow meter 12 can monitor the flow rate at the hydrogen outlet to keep it the same as the flow rate at the hydrogen inlet.

[0031] In addition to the three sets of flow meters, first, second, and third pressure sensors (P1, P2, and P3) are installed in parallel within the flow lines of the three sets of flow meters to monitor hydrogen pressure in parallel. After the full hydrogen absorption program is started, the pressure of the hydrogen released by heating can be detected based on the third pressure sensor in the third flow meter 12 at the hydrogen outlet. If the third pressure sensor P3 > 4 MPa, hydrogen charging is performed; otherwise, it is determined that the inlet pressure is insufficient and charging is stopped. At this time, the pressure status of the first pressure sensor P1 and the second pressure sensor P2 at the front end of the charging device is detected to ensure the sealing and smoothness of the charging device pipeline. Hydrogen charging is performed again when the pressures of the first pressure sensor P1, the second pressure sensor P2, and the third pressure sensor P3 are the same and the third pressure sensor P3 > 4 MPa.

[0032] And at this time, the control status of each component in the hydrogenation state is as follows:

[0033] When the matching water chiller starts, the temperature is set to -10℃, the water chiller's built-in water pump starts, and the pressure and temperature sensors of the air and water circuits are monitored.

[0034] The readings of the three flow meters are ≥2.2m. 3 When the pressure is / h, maintain the opening and closing of the intake solenoid valve 3 and exhaust solenoid valve 4 as described above; otherwise, close the valve switch of the intake solenoid valve 3 for 30s and record the pressure change in the first pressure sensor P1 and the second pressure sensor P2 for 30s. If the pressure drop in the first pressure sensor P1 and the second pressure sensor P2 exceeds 0.05MPa, start the solid-state hydrogen storage device and perform the above monitoring again after ten minutes. If the pressure drop in the first pressure sensor P1 and the second pressure sensor P2 does not exceed 0.05MPa, close the gas circuit valve and record the hydrogen storage capacity of each system as N. in After 5 minutes, turn off the water chiller and its built-in water pump, and close the water circuit valves.

[0035] The winding mechanism 6 and the pressure buffer tank 10 are connected by a guide pipe 8. An inlet solenoid valve 3 is installed at the inlet end of the winding mechanism 6. An exhaust pipe 11 is connected to the outlet end of the pressure buffer tank 10. An exhaust solenoid valve 4 is installed at the outlet end of the exhaust pipe 11. An inlet valve port 13 connected to the guide pipe 8 is installed in the middle of the tank body of the pressure buffer tank 10. An exhaust valve port 14 connected to the exhaust pipe 11 is installed at the upper end of the tank body of the pressure buffer tank 10. The hydrogen gas after heating and vaporization can reach 30-40MPa. Using its high pressure, it is pressurized and sent to the hydrogen storage device through the combination of the flow pipeline of the winding mechanism 6, the guide pipe 8, the pressure buffer tank 10, and the exhaust pipe 11.

[0036] A pressure buffer tank 10 is installed on the other side of the chamber of the filling skid 1. A pressure regulating mechanism 15 is installed at the bottom of the chamber of the pressure buffer tank 10. The pressure regulating mechanism 15 includes a transmission housing 151. A bottom support plate 154 is installed at the bottom of the inner shell of the transmission housing 151. A lifting push plate 155 is slidably connected to the inner shell of the transmission housing 151. A transmission motor 156 is installed in the middle of the plate surface of the lifting push plate 155. A transmission gear 157 is installed at the output end of the transmission motor 156. The plate surface of the lifting push plate 155 is arranged along the circumference of the transmission gear 157. The device is equipped with multiple sets of synchronous gears 159, and a transmission thread sleeve 1510 is installed through the shaft of the synchronous gears 159. The multiple sets of synchronous gears 159 are arranged in a ring symmetrical arrangement along the shaft of the transmission gear 157, and the transmission gear 157 and the synchronous gear 159 are meshed and transmitted through the intermediate gear 158. By controlling the operation of the transmission motor 156, the transmission gear 157 is driven to rotate. The meshing transmission of the intermediate gear 158 drives the multiple sets of synchronous gears 159 to rotate in linkage, which serves as the driving source to drive the corresponding components to operate.

[0037] The upper and lower ends of the sleeve of the transmission sleeve 1510 are symmetrically screwed with lifting screws 1511, which are fixedly connected to the bottom support plate 154 and the pressure push head 152. The threads of the two sets of lifting screws 1511 are arranged symmetrically in opposite directions, and the arm length of the two sets of lifting screws 1511 is the same as the sleeve length of the transmission sleeve 1510. When the synchronous gear 159 rotates, it drives the transmission sleeve 1510 to rotate. By utilizing the matching of the threads of the two sets of lifting screws 1511 arranged symmetrically in opposite directions, the rotational force is converted into lifting thrust, which pushes the two sets of lifting screws 1511 to extend and retract, and pushes the pressure push head 152 upward to adjust the gas pressure space of the pressure buffer tank 10, increase the hydrogen flow rate, so that the hydrogen flow rate at the outlet and the hydrogen flow rate at the inlet are dynamically consistent, and improve the accuracy of hydrogen filling.

[0038] The inner wall of the transmission housing 151 is provided with lifting guide rods 153 arranged circumferentially to guide the lifting push plate 155. By using the lifting guide rods 153 to guide the lifting push plate 155, while the bottom lifting screw 1511 is lifting and extending, the lifting push plate 155 can be pushed to slide synchronously up and down along the lifting guide rods 153, so as to adjust the pressure push head 152 by extending and extending up and down and by double pushing.

[0039] A pressure relief and dilution mechanism 5, which penetrates the filling skid 1, is installed at the top of the chamber of the pressure buffer tank 10. The pressure relief and dilution mechanism 5 includes a pressure relief solenoid valve 51 installed at the upper end of the tank body of the pressure buffer tank 10. A flow divider 52 is installed at the valve port of the pressure relief solenoid valve 51. Multiple flow divider holes 53 are arranged circumferentially along the body of the flow divider 52. A rotating shaft 55 is rotatably connected to the middle of the chamber of the flow divider 52. A vortex fan 54 is provided on the outer side of the shaft of the rotating shaft 55, which is opposite to the valve port of the pressure relief solenoid valve 51. When the filling device experiences pipeline leakage... In case of exposure or abnormal gas pressure, the valves of the intake solenoid valve 3 and the exhaust solenoid valve 4 can be closed to control the closure of the inlet and outlet. Then, the valve of the pressure relief solenoid valve 51 can be opened to release the high-pressure hydrogen in the filling device pipeline. At the same time as the pressure is released, the high pressure drives the vortex fan 54 to rotate, so that the high-pressure hydrogen is dispersed and flows through the diversion outlet 53 on the diversion cylinder 52 to the outside world, where it is diluted with the atmospheric environment to avoid excessive concentration and deflagration, thus ensuring safety during the filling process.

[0040] The working principle of this invention is as follows: When solid hydrogen is added to the hydrogen storage device, the winding motor 68 is first controlled to work. The transmission combination of pulley B67, transmission belt 66, and pulley A65 drives the winding frame 62 to rotate, and the air inlet hose 63 on it is wound out, so that the air inlet solenoid valve 3 can be flexibly connected to the solid hydrogen storage device. Then, after the solid hydrogen is heated and vaporized, its hydrogen pressure can reach 30-40MPa. Using its high pressure, it is pressed into the hydrogen storage device through the flow pipeline, guide pipe 8, pressure buffer tank 10, and exhaust pipe 11 of the winding and unwinding mechanism 6.

[0041] While hydrogen is being pressurized, the flow rate at the hydrogen inlet is monitored using the first flow meter 7, and the flow rate in the hydrogen circulation pipeline is monitored using the second flow meter 9, so that the flow rate at the inlet is dynamically linked and monitored. When there is a deviation between the two, leakage or abnormal pressure in the circulation pipeline can be detected, so that the staff can immediately operate the electronic control panel 2 to control the filling device to stop the filling work. The flow rate at the hydrogen outlet is monitored using the third flow meter 12, so that it is the same as the flow rate at the hydrogen inlet. When there is a deviation between the two, mechanical pressure compensation can be performed to improve the accuracy of hydrogen filling.

[0042] Subsequently, during the hydrogen refueling process, as the subsequent hydrogen refueling pressure gradually decreases, the drive motor 156 is controlled to operate. The combined linkage of the drive gear 157, the intermediate gear 158, and multiple sets of synchronous gears 159 serves as the drive source, driving the drive sleeve 1510 to rotate. The mating of the threads on the two sets of lifting screws 1511, which are arranged symmetrically in opposite directions, converts the rotational force into a lifting thrust, pushing the two sets of lifting screws 1511 to extend and retract, thus pushing the pressure push head 152 upward. This adjusts the gas pressure space of the pressure buffer tank 10, increases the hydrogen flow rate, and ensures that the hydrogen flow rate at the outlet and the hydrogen flow rate at the inlet remain dynamically consistent, thereby improving the accuracy of hydrogen refueling.

[0043] Furthermore, when the refueling device experiences pipeline leaks or abnormal gas pressure, the valves of the inlet solenoid valve 3 and the outlet solenoid valve 4 can be closed to control the closure of the inlet and outlet. Then, the valve of the pressure relief solenoid valve 51 can be opened to release the high-pressure hydrogen in the refueling device pipeline. Under the acceleration of the pressure regulating mechanism 15, the residual high-pressure hydrogen is pushed out. At the same time as the pressure is released, the high pressure drives the vortex fan 54 to rotate, so that the high-pressure hydrogen is dispersed and flows through the diversion outlet hole 53 on the diversion cylinder 52 to the outside world, where it is diluted with the atmospheric environment to avoid excessive concentration and deflagration, thereby improving the safe use of the refueling device.

[0044] The present invention provides a method for calculating the hydrogen density in a solid hydrogen storage tank with a pressure of 0.1-100 MPa and a temperature of 220-500 K, as detailed below:

[0045] The hydrogen compressibility factor Z is calculated using the following formula:

[0046]

[0047] The density of hydrogen gas is calculated using the following formula:

[0048] ρ=Mp / (ZRT)

[0049] In the above formula, M represents the molar mass of a hydrogen molecule, in grams per mole (M = 2.016 g / mol);

[0050] P represents hydrogen pressure, and Z represents the hydrogen compressibility factor.

[0051] R represents the gas constant {R = 0.0083145 MPa·L / (mol·K)};

[0052] T represents the temperature of hydrogen gas, and the unit is Kelvin (K).

[0053] ρ represents the density of hydrogen gas, with units of kilograms per cubic meter (kg / m³). 3 );

[0054] Vij The representative constants are shown in the table below:

[0055] By calculating the hydrogen density in the solid hydrogen storage tank and combining it with hydrogen addition parameters such as pressure, precise control of the hydrogen addition process can be achieved.

[0056]

[0057] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A solid hydrogen storage and refueling device, comprising a refueling skid (1). Its characteristics are: A winding mechanism (6) is installed on one side of the chamber of the filling skid (1), and a pressure buffer tank (10) is installed on the other side of the chamber of the filling skid (1). The winding mechanism (6) and the pressure buffer tank (10) are connected by a guide pipe (8), and an air intake solenoid valve (3) is installed at the pipe inlet end of the winding mechanism (6), and an exhaust pipe (11) is connected at the pipe outlet end of the pressure buffer tank (10), and an exhaust solenoid valve (4) is installed at the pipe outlet end of the exhaust pipe (11). The pressure buffer tank (10) is equipped with a pressure regulating mechanism (15) at the bottom of the chamber, and a pressure relief and dilution mechanism (5) that penetrates the filling skid (1) is installed at the top of the chamber. The pressure regulating mechanism (15) includes a transmission housing (151), a bottom support plate (154) is installed at the bottom of the inner shell of the transmission housing (151), and a lifting push plate (155) is slidably connected to the inner shell of the transmission housing (151). A transmission motor (156) is installed in the middle of the plate surface of the lifting push plate (155), and a transmission gear (157) is installed at the output end of the transmission motor (156). Multiple sets of synchronous gears (159) are arranged and installed on the plate surface of the lifting push plate (155) along the circumference of the transmission gear (157), and a transmission thread sleeve (1510) is installed through the shaft of the synchronous gear (159). The upper and lower ends of the sleeve of the transmission thread sleeve (1510) are symmetrically screwed with a lifting screw (1511) that is fixedly connected to the bottom support plate (154) and the pressure push head (152). Multiple sets of synchronous gears (159) are arranged symmetrically in a ring along the axis of the transmission gear (157), and the transmission gear (157) and the synchronous gear (159) are driven by meshing through a transfer gear (158). The threads of the two sets of lifting screws (1511) facing each other are arranged symmetrically in the positive and negative directions, and the arm length of the two sets of lifting screws (1511) is the same as the sleeve length of the transmission sleeve (1510). The inner wall of the transmission housing (151) is provided with lifting guide rods (153) that are guided to the lifting push plate (155) along its circumference. The pressure relief and dilution mechanism (5) includes a pressure relief solenoid valve (51) installed on the upper end of the pressure buffer tank (10). A flow divider (52) is installed at the valve port of the pressure relief solenoid valve (51). Multiple flow divider holes (53) are arranged around the cylinder body of the flow divider (52). A rotating shaft (55) is rotatably connected to the middle of the chamber of the flow divider (52). A vortex fan (54) is provided on the outer side of the shaft of the rotating shaft (55) opposite to the valve port of the pressure relief solenoid valve (51).

2. The solid-state hydrogen storage and refueling device according to claim 1, characterized in that, The winding mechanism (6) includes a support frame (61), the top of the support frame (61) is rotatably connected to a winding frame (62), and an air inlet hose (63) is wound inside the ring frame of the winding frame (62). The outlet end of the air inlet hose (63) is connected to an exhaust duct (64) that passes through the central axis of the winding frame (62).

3. A solid-state hydrogen storage and refueling device according to claim 2, characterized in that, A winding motor (68) is installed on one side of the support frame (61), and a pulley B (67) is installed at the output end of the winding motor (68). A pulley A (65) is installed on one side of the central shaft of the winding frame (62), and pulley A (65) and pulley B (67) are connected by a transmission belt (66).

4. The solid-state hydrogen storage and refueling device according to claim 1, characterized in that, The winding mechanism (6) has a first flow meter (7) installed on the side of the pipeline near the intake solenoid valve (3), the guide pipe (8) has a second flow meter (9) installed in the middle of the pipeline, and the exhaust pipe (11) has a third flow meter (12) installed on the side of the pipeline near the exhaust solenoid valve (4).

5. A solid-state hydrogen storage and refueling device according to claim 1, characterized in that, The pressure buffer tank (10) has an air inlet valve (13) connected to the flow guide pipe (8) in the middle of the tank body, and an exhaust valve (14) connected to the exhaust pipe (11) is installed at the upper end of the tank body.

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