Solid-gas combined hydrogen storage well

Abstract

This invention discloses a solid-gas combined hydrogen storage well, comprising several well bodies, multiple solid hydrogen storage modules, multiple low-pressure buffer tanks, and multiple high-pressure hydrogen storage tanks. A vertical concrete firewall is installed within each well body to uniformly divide the well body into multiple hydrogen wells. Solid hydrogen storage modules are uniformly stacked within each hydrogen well to form a solid hydrogen storage unit for each well. Each low-pressure buffer tank corresponds to a hydrogen well, is located within the well body, and is connected to all solid hydrogen storage modules within the corresponding well. Each high-pressure hydrogen storage tank corresponds to a well body, is located within the corresponding well body, and is connected to all low-pressure buffer tanks within the corresponding well body via a booster compressor. The high-pressure hydrogen storage tank is also connected to a hydrogen refueling machine. This invention effectively solves the problems of high cost and high risk associated with hydrogen refueling stations.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage, and particularly relates to a solid-gas combined hydrogen storage hydrogen well. Background Art

[0002] China's hydrogen energy policy system is becoming increasingly complete. The development of the hydrogen energy industry is generally in a good trend, the industrial chain is gradually improving, the gap with the international advanced level is gradually narrowing, and domestic and international cooperation has been further strengthened. At present, China's hydrogen production and demand rank first in the world and show an increasing trend year by year, with a production capacity exceeding 40 million tons / year. Large energy enterprises are gradually carrying out hydrogen energy layout, and currently, the number of hydrogen energy-related enterprises in China has exceeded 8,000. The acquisition and application of hydrogen energy in various industries in China will gradually transition from gray hydrogen and blue hydrogen to green hydrogen. At the same time, core materials and key technologies related to hydrogen production, storage, transportation, and refueling have been continuously broken through, the level of equipment localization has been rapidly improved, and the scale of hydrogen energy demonstration and application scenarios will be further expanded.

[0003] According to the prediction of the China Hydrogen Energy Alliance, by 2040, China's annual hydrogen demand will increase to about 57 million tons. A more complete hydrogen storage, transportation, and supply system is needed to meet the huge hydrogen energy demand. Assuming that the terminal hydrogen price is 30 yuan / kg, the storage and transportation cost accounts for 30%, and the equipment investment cost accounts for 70% of it, the scale of the corresponding storage and transportation equipment market will be as high as 520 billion yuan.

[0004] To promote the development of the hydrogen energy industry, it is essential to vigorously build hydrogen refueling stations. With the development of the industry and the decline of subsidy amounts, it is of great significance to improve the localization rate of key equipment, improve the hydrogen storage facilities and the way of transporting hydrogen energy in hydrogen refueling stations, reduce the construction cost of hydrogen refueling stations, and at the same time reduce the hydrogen transportation cost, so as to reduce the terminal cost of hydrogen refueling stations and the terminal price of hydrogen, and ultimately reduce the cost of using hydrogen. Comparing hydrogen fuel heavy trucks with fuel heavy trucks, from the perspective of fuel costs, according to the industry average fuel consumption level, a fuel heavy truck consumes about 35L of fuel per 100 kilometers, and a hydrogen fuel heavy truck consumes about 12kg of hydrogen per 100 kilometers. Calculated according to the fuel costs of 8 yuan / L for fuel and 35 yuan / kg for hydrogen, the fuel cost per 100 kilometers of a fuel heavy truck is 280 yuan, and the fuel cost per 100 kilometers of a hydrogen fuel heavy truck is 420 yuan. Therefore, according to the current cost system and level, if parity is to be achieved in the operation link, the price of hydrogen needs to be reduced to less than 25 yuan / kg.

[0005] This involves costs related to storage, transportation, and safety. Storage costs include the construction, maintenance, and operation of hydrogen storage facilities, as well as energy losses during hydrogen storage. High-pressure hydrogen storage is currently the most mature and widely used method, but it faces bottlenecks in terms of storage density and safety. Solid-state hydrogen storage has great potential but is currently in the research stage. Cryogenic liquid hydrogen storage technology has an absolute advantage in terms of high hydrogen density per unit mass and per unit volume, but its current storage cost is too high, mainly due to the high energy consumption of the liquefaction process and the extremely high requirements for the insulation performance of the storage container. Organic liquid hydrogen storage has not yet been commercialized on a large scale due to cost and technical issues. Transportation costs include energy consumption during hydrogen transportation, depreciation and maintenance costs of transportation vehicles, and transportation insurance costs. Safety costs refer to the costs of ensuring the safety of hydrogen during storage and transportation, including the purchase and maintenance of safety equipment, personnel training, and emergency response. Loss costs refer to losses that may occur during hydrogen storage and transportation due to leaks or other reasons.

[0006] The hydrogen wells mentioned here refer to hydrogen storage facilities used in hydrogen refueling or storage stations to enhance hydrogen storage safety and reduce the cost of hydrogen transportation and storage. Data shows that hydrogen refueling stations, as a key infrastructure for the development of the hydrogen energy industry in my country's transportation sector, have entered a period of development opportunities. my country now has 397 hydrogen refueling stations, accounting for 43.1% of the global total, ranking first, with an average annual growth rate of 78% over the past six years, and a vehicle-to-station ratio of 46:1. (See "Energy Saving and New Energy Vehicle Technology Roadmap") Figure 2 According to the "0" plan, my country's hydrogen refueling station construction target is at least 1,000 stations by 2025 and at least 5,000 stations by 2035. If 10% of these stations adopt this innovative achievement, it will greatly improve the safety of hydrogen storage and bring huge direct and indirect economic benefits.

[0007] The construction of hydrogen refueling stations inevitably involves the construction of hydrogen energy storage facilities, which are an indispensable component. Currently, the construction of hydrogen refueling stations in my country generally adopts the "factory hydrogen + gaseous tubular truck transportation + hydrogen refueling station" model. The key problems it faces include excessively high operating costs (40-50 yuan / kg), small single-transport volume, high transportation costs, and doubts about transportation safety, resulting in a lack of market competitiveness. Besides this, there are also the "factory hydrogen + liquid tanker truck transportation + hydrogen refueling station" model and the "integrated hydrogen production and refueling station" model. The former has high energy consumption, while the latter has high site selection requirements. For example, according to data from the China Petroleum & Chemical Research Institute, when the transportation distance is 50km, the transportation cost of hydrogen is 4.9 yuan / kg; as the transportation distance increases, the cost of long-tube trailer transportation rises rapidly, reaching nearly 22 yuan / kg at a distance of 500km. Summary of the Invention

[0008] The purpose of this invention is to provide a solid-gas combined hydrogen storage well to solve the problems of high cost and high risk of hydrogen refueling stations.

[0009] This invention is achieved through the following technical solution:

[0010] A solid-gas combined hydrogen storage well includes: a plurality of well bodies, each well body having a vertically installed concrete firewall to uniformly divide the well body into multiple hydrogen wells; a plurality of solid hydrogen storage modules, each solid hydrogen storage module being uniformly stacked within each hydrogen well to form a solid hydrogen storage unit with each hydrogen well; a plurality of low-pressure buffer tanks, each low-pressure buffer tank corresponding to one of the hydrogen wells, located within the well body and connected to all the solid hydrogen storage modules within the corresponding hydrogen well; and a plurality of high-pressure hydrogen storage tanks, each high-pressure hydrogen storage tank corresponding to one of the well bodies, located within the corresponding well body and connected to all the low-pressure buffer tanks within the corresponding well body via a booster compressor, and each high-pressure hydrogen storage tank being connected to a hydrogen dispenser.

[0011] Optionally, the well body is cubic in shape, and the concrete firewall evenly divides the corresponding well body into a grid pattern to form four hydrogen wells. The four solid hydrogen storage units are arranged to form an outer layer structure. The low-pressure buffer tank is vertically arranged between any two solid hydrogen storage units in the corresponding well body, so that all the low-pressure buffer tanks in the corresponding well body form a middle layer structure. The high-pressure hydrogen storage tank is vertically arranged in the middle of the corresponding well body to form an inner layer structure.

[0012] Optionally, the concrete firewall in each well body includes a first firewall that is rectangularly enclosed within the corresponding well body and a second firewall that is cross-shaped and spaced apart in the middle of the corresponding well body; a transport space is reserved between the first firewall and the well wall of the well body, and the transport space is paved with a walkway and a conveyor slide; the first firewall has a transport escape opening and is equipped with an escape door.

[0013] Optionally, the thickness of the second firewall is greater than the thickness of the first firewall.

[0014] Optionally, the thickness of the second firewall is twice the thickness of the first firewall.

[0015] Optionally, both the low-pressure buffer tank and the high-pressure hydrogen storage tank are vertically embedded within the second firewall.

[0016] Optionally, each hydrogen well may contain three solid hydrogen storage modules stacked from top to bottom.

[0017] Optionally, each of the well bodies is provided with a hoisting and conveying mechanism, which is used to hoist the solid hydrogen storage module into or out of any one of the hydrogen wells in the corresponding well body.

[0018] Optionally, each of the hydrogen wells is equipped with a heating device for heating the solid hydrogen storage module in the corresponding hydrogen well.

[0019] Optionally, the well body is excavated below the ground surface; the low-pressure buffer tank is connected to each of the solid hydrogen storage modules in the corresponding hydrogen well through multiple low-pressure pipes; the high-pressure hydrogen storage tank is connected to each of the low-pressure buffer tanks in the corresponding well body through multiple high-pressure pipes, and each high-pressure pipe is equipped with a booster; both the low-pressure pipe and the high-pressure pipe are located below the horizon.

[0020] Optionally, the high-pressure hydrogen storage tank is connected to the hydrogen dispenser via a hydrogen refueling pipe, and the hydrogen refueling pipe and the hydrogen dispenser are located above the horizon.

[0021] Optionally, both the low-pressure pipe and the high-pressure pipe are equipped with a pressure sensor, a solenoid valve, a flow sensor, a pressure gauge, and a pressure reducing valve; within the well body, hydrogen leak sensor alarms, hydrogen leak alarm linkage systems, fire alarm devices, and automatic fire extinguishing devices are respectively installed near all the low-pressure pipes and all the high-pressure pipes.

[0022] Optionally, the low-pressure buffer tank is connected to each of the solid hydrogen storage modules in the corresponding hydrogen well through multiple first emergency reverse hydrogen transmission pipes; the high-pressure hydrogen storage tank is connected to each of the low-pressure buffer tanks in the corresponding well body through multiple second emergency reverse hydrogen transmission pipes; both the first emergency reverse hydrogen transmission pipes and the second emergency reverse hydrogen transmission pipes are equipped with emergency reverse check valves and gate valves.

[0023] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0024] This invention provides a solid-gas combined hydrogen storage well that fully utilizes the advantages of underground hydrogen wells, such as small footprint and high safety. It organically combines solid metal hydrogen storage skids with gaseous tank hydrogen storage skids, thereby leveraging the convenience and high safety of solid metal hydrogen storage skids in transportation while combining the convenience of gaseous tank hydrogen storage skids in filling and use. This reduces costs and improves safety in both transportation and filling / use, effectively solving the problems of high cost and high risk of hydrogen refueling stations. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 A top view schematic diagram of a solid-gas combined hydrogen storage well provided in an embodiment of the present invention;

[0027] Figure 2 This is a side view schematic diagram of the solid hydrogen storage unit of the solid-gas combined hydrogen storage well provided in an embodiment of the present invention.

[0028] The attached diagram shows the markings and corresponding component names:

[0029] 10-Well body; 11-Concrete firewall; 12-Hydrogen well; 20-Solid hydrogen storage module; 30-Low-pressure buffer tank; 31-Low-pressure pipe; 40-High-pressure hydrogen storage tank; 42-High-pressure pipe. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0031] Please refer to Figure 1 and Figure 2 This invention provides a solid-gas combined hydrogen storage well, comprising: a plurality of well bodies 10, each well body 10 having a vertically installed concrete firewall 11 to uniformly divide the well body 10 into a plurality of hydrogen wells 12; a second comprising a plurality of solid hydrogen storage modules 20, the solid hydrogen storage modules 20 being uniformly stacked within each hydrogen well 12 to form a solid hydrogen storage unit in each hydrogen well 12; a third comprising a plurality of low-pressure buffer tanks 30, each low-pressure buffer tank 30 corresponding to one of the hydrogen wells 12, the low-pressure buffer tank 30 being disposed within the well body 10 and connected to all the solid hydrogen storage modules 20 within the corresponding hydrogen well 12; and a fourth comprising a plurality of high-pressure hydrogen storage tanks 40, each high-pressure hydrogen storage tank 40 corresponding to one of the well bodies 10, the high-pressure hydrogen storage tank 40 being disposed within the corresponding well body 10 and connected to all the low-pressure buffer tanks 30 within the corresponding well body 10 via a booster compressor, and the high-pressure hydrogen storage tank 40 being connected to a hydrogen dispenser.

[0032] The solid-gas combined hydrogen storage well provided in this embodiment fully utilizes the characteristics of underground hydrogen wells, such as small footprint and high safety. It organically combines solid metal hydrogen storage skids with gaseous tank hydrogen storage skids, thereby leveraging the convenience and high safety of solid metal hydrogen storage skids in transportation and the convenience of gaseous tank hydrogen storage skids in filling and use. This reduces costs and improves safety in both transportation and filling and use, effectively solving the problems of high cost and high risk of hydrogen refueling stations.

[0033] Specifically, by setting up the well body 10 as the structural foundation of the hydrogen storage well, the entire hydrogen storage well is basically located below the ground level, making full use of the characteristics of small footprint and high safety of underground hydrogen wells. On this basis, by setting up a concrete firewall 11, multiple hydrogen wells 12 are separated within the well body 10, allowing the solid hydrogen storage module 20 to be stacked in the hydrogen well 12 for hydrogen extraction. This modular design effectively improves safety, and the solid hydrogen storage module 20 has high convenience and safety in transportation. Furthermore, by setting up a low-pressure buffer tank 30 and a high-pressure hydrogen storage tank 40, the hydrogen in the solid hydrogen storage module 20 is transferred to the low-pressure buffer tank 30 and the high-pressure hydrogen storage tank 40, thereby effectively utilizing the convenience of gaseous tube hydrogen storage skids during filling and use. Finally, the gaseous hydrogen is filled into the hydrogen dispenser for use. After hydrogen extraction, the solid hydrogen storage module 20 can be transported to the hydrogen source for hydrogen filling again, and then transported again and stacked in the hydrogen well 12 for hydrogen extraction, thus recycling the system.

[0034] To provide a specific explanation of the structure of the hydrogen storage well, the well body 10 is cubic in shape. The concrete firewall 11 evenly divides the corresponding well body 10 into a grid pattern to form four hydrogen wells 12. The four solid hydrogen storage units surround and form an outer layer structure. The low-pressure buffer tank 30 is vertically arranged between any two solid hydrogen storage units within the corresponding well body 10, so that all the low-pressure buffer tanks 30 within the corresponding well body 10 form a middle layer structure. The high-pressure hydrogen storage tank 40 is vertically arranged in the middle of the corresponding well body 10 to form an inner layer structure.

[0035] The above settings achieve separation of high, medium, and low pressures, effectively improving the safety of the entire hydrogen well.

[0036] To further explain the specific structure of the concrete firewall 11, each of the well bodies 10 includes a first firewall that is rectangularly arranged within the corresponding well body 10 and a second firewall that is cross-shaped and spaced apart in the middle of the corresponding well body 10; a transport space is reserved between the first firewall and the well wall of the well body 10, and the transport space is paved with a walkway and a conveyor slide; the first firewall has an escape hatch and is equipped with an escape door.

[0037] To further enhance security, the second firewall is thicker than the first firewall.

[0038] Preferably, the thickness of the second firewall is twice the thickness of the first firewall.

[0039] To further enhance safety, both the low-pressure buffer tank 30 and the high-pressure hydrogen storage tank 40 are vertically embedded within the second firewall.

[0040] Optionally, each hydrogen well 12 may have three solid hydrogen storage modules 20 stacked from top to bottom.

[0041] To facilitate the transfer of the solid hydrogen storage module 20 into and out of the well body 10, each well body 10 is provided with a hoisting and conveying mechanism. The hoisting and conveying mechanism is used to hoist the solid hydrogen storage module 20 into or out of any one of the hydrogen wells 12 in the corresponding well body 10.

[0042] With the above settings, the solid hydrogen storage module 20 in the hydrogen well 12 can be hoisted upwards to increase the transfer speed. During hoisting, the solid hydrogen storage modules 20 in multiple hydrogen wells 12 in the well body 10 are hoisted in sequence to ensure the uniformity of the entire hydrogen storage well.

[0043] In order to improve the hydrogen extraction efficiency in the hydrogen well 12, each hydrogen well 12 is equipped with a heating device, which is used to heat the solid hydrogen storage module 20 in the corresponding hydrogen well 12.

[0044] Optionally, the interface of a heating device in each hydrogen well 12 and the interface of the solid hydrogen storage module 20 can be automatically and quickly connected, connecting the heating device and the internal flow channel of the solid hydrogen storage module 20.

[0045] Optionally, the heating device moves in segments with self-controlled movement, each segment having a spring limit block to ensure accurate matching of the aforementioned interfaces.

[0046] It should be noted that the heating device, except for the interface, has no contact with the solid hydrogen storage module 20. The heating device, solid hydrogen storage module 20, and other auxiliary devices such as the pull spring are all intrinsically safe and explosion-proof. The heating device moves smoothly on the vertical track, which has multiple limiting devices to ensure that the above interfaces automatically and accurately match. The heating medium channel is completely isolated from the hydrogen flow channel to ensure that only heat is transferred and not the medium is transferred.

[0047] To further enhance the safety performance of the hydrogen storage well, the well body 10 is excavated below ground level; the low-pressure buffer tank 30 is connected to each of the solid hydrogen storage modules 20 in the corresponding hydrogen well 12 via multiple low-pressure pipes 31; the high-pressure hydrogen storage tank 40 is connected to each of the low-pressure buffer tanks 30 in the corresponding well body 10 via multiple high-pressure pipes 42, and each high-pressure pipe 42 is equipped with a booster; both the low-pressure pipes 31 and the high-pressure pipes 42 are located below the horizon.

[0048] To facilitate the use of hydrogen, the high-pressure hydrogen storage tank 40 is connected to the hydrogen dispenser via a hydrogen dispensing pipe, and the hydrogen dispensing pipe and the hydrogen dispenser are located above the horizon.

[0049] To facilitate monitoring of various parameters of the hydrogen storage well and avoid potential dangers during the process, both the low-pressure pipe 31 and the high-pressure pipe 42 are equipped with pressure sensors, solenoid valves, flow sensors, pressure gauges, and pressure reducing valves. Inside the well body 10, near all the low-pressure pipes 31 and all the high-pressure pipes 42, hydrogen leak sensors, hydrogen leak alarm linkage systems, fire alarm devices, and automatic fire extinguishing devices are respectively installed.

[0050] To address the issue of pipeline rupture during hydrogen extraction, the low-pressure buffer tank 30 is connected to each of the solid hydrogen storage modules 20 within the corresponding hydrogen well 12 via multiple first emergency reverse hydrogen transmission pipes; the high-pressure hydrogen storage tank 40 is connected to each of the low-pressure buffer tanks 30 within the corresponding well body 10 via multiple second emergency reverse hydrogen transmission pipes; both the first and second emergency reverse hydrogen transmission pipes are equipped with emergency reverse check valves and gate valves.

[0051] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A solid-gas combined hydrogen storage well, characterized in that, include: Several well bodies (10), each well body (10) is vertically provided with a concrete firewall (11) to uniformly divide the well body (10) into multiple hydrogen wells (12); Multiple solid hydrogen storage modules (20) are uniformly stacked in each hydrogen well (12) to form a solid hydrogen storage unit in each hydrogen well (12); Multiple low-pressure buffer tanks (30) are provided, each corresponding to a hydrogen well (12). The low-pressure buffer tanks (30) are located inside the well body (10) and are connected to all the solid hydrogen storage modules (20) in the corresponding hydrogen well (12). Multiple high-pressure hydrogen storage tanks (40) are provided, each corresponding to a well body (10). The high-pressure hydrogen storage tanks (40) are located in the corresponding well body (10) and are connected to all the low-pressure buffer tanks (30) in the corresponding well body (10) through a booster. The high-pressure hydrogen storage tanks (40) are connected to a hydrogen refueling machine.

2. The solid-gas combined hydrogen storage well according to claim 1, characterized in that, The well body (10) is cubic in shape, and the concrete firewall (11) evenly divides the corresponding well body (10) into a grid pattern to form four hydrogen wells (12), and the four solid hydrogen storage units surround to form an outer structure. The low-pressure buffer tank (30) is vertically disposed between any two solid hydrogen storage units within the corresponding well body (10), so that all the low-pressure buffer tanks (30) within the corresponding well body (10) form a middle layer structure; The high-pressure hydrogen storage tank (40) is vertically installed in the middle of the corresponding well body (10) to form an inner layer structure.

3. The solid-gas combined hydrogen storage well according to claim 2, characterized in that, The concrete firewall (11) within each well body (10) includes a first firewall that is rectangularly enclosed within the corresponding well body (10) and a second firewall that is cross-shaped and separated from the middle of the corresponding well body (10); A transport space is reserved between the first firewall and the well wall of the well body (10), and the transport space is paved with a walkway and a conveyor slide. The first firewall has an escape hatch and an escape door.

4. The solid-gas combined hydrogen storage well according to claim 3, characterized in that, The thickness of the second firewall is greater than the thickness of the first firewall.

5. The solid-gas combined hydrogen storage well according to claim 4, characterized in that, The thickness of the second firewall is twice that of the first firewall.

6. The solid-gas combined hydrogen storage well according to claim 5, characterized in that, Both the low-pressure buffer tank (30) and the high-pressure hydrogen storage tank (40) are vertically embedded in the second firewall.

7. The solid-gas combined hydrogen storage well according to claim 6, characterized in that, Each hydrogen well (12) contains three solid hydrogen storage modules (20) stacked from top to bottom.

8. The solid-gas combined hydrogen storage well according to claim 7, characterized in that, Each well body (10) is provided with a hoisting and conveying mechanism, which is used to hoist the solid hydrogen storage module (20) into or out of any one of the hydrogen wells (12) in the corresponding well body (10).

9. The solid-gas combined hydrogen storage well according to claim 1, characterized in that, Each of the hydrogen wells (12) is equipped with a heating device, which is used to heat the solid hydrogen storage module (20) in the corresponding hydrogen well (12).

10. The solid-gas combined hydrogen storage well according to claim 1, characterized in that, The well body (10) is excavated below the ground surface; The low-pressure buffer tank (30) is connected to each of the solid hydrogen storage modules (20) in the corresponding hydrogen well (12) through multiple low-pressure pipes (31); The high-pressure hydrogen storage tank (40) is connected to each of the low-pressure buffer tanks (30) in the corresponding well body (10) through multiple high-pressure pipes (42), and each of the high-pressure pipes (42) is equipped with a booster. Both the low-pressure pipe (31) and the high-pressure pipe (42) are located below the horizon.

11. The solid-gas combined hydrogen storage well according to claim 10, characterized in that, The high-pressure hydrogen storage tank (40) is connected to the hydrogen dispenser via a hydrogen refueling pipe, and the hydrogen refueling pipe and the hydrogen dispenser are located above the horizon.

12. The solid-gas combined hydrogen storage well according to claim 10, characterized in that, Both the low-pressure pipe (31) and the high-pressure pipe (42) are equipped with a pressure sensor, a solenoid valve, a flow sensor, a pressure gauge and a pressure reducing valve; Inside the well body (10), near all the low-pressure pipes (31) and all the high-pressure pipes (42), a hydrogen leak sensor alarm, a hydrogen leak alarm linkage system, a fire alarm device and an automatic fire extinguishing device are respectively installed.

13. The solid-gas combined hydrogen storage well according to claim 10, characterized in that, The low-pressure buffer tank (30) is connected to each of the solid hydrogen storage modules (20) in the corresponding hydrogen well (12) through multiple first emergency reverse hydrogen transmission pipes; The high-pressure hydrogen storage tank (40) is connected to each of the low-pressure buffer tanks (30) in the corresponding well body (10) through multiple second emergency reverse hydrogen transmission pipes; Both the first emergency reverse hydrogen transmission pipe and the second emergency reverse hydrogen transmission pipe are equipped with an emergency reverse check valve and a gate valve.

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