Underground tunnel type hydrogen storage bank structure

Abstract

The invention discloses an underground tunnel type hydrogen storage library structure and a construction method, and relates to the technical field of underground hydrogen storage libraries, the underground tunnel type hydrogen storage library structure comprises a steel lining, a supporting layer and a supporting adjusting assembly, and the supporting layer covers the outer side of the steel lining; the supporting adjusting assembly comprises a displacement meter and an adjusting mechanism, the adjusting mechanism comprises a fixed cylinder and a sliding part, the displacement meter and the fixed cylinder are both arranged on the surrounding rock layer, and the sliding part is arranged on the fixed cylinder in a sliding mode and abuts against the outer side of the supporting layer; the sliding piece can slide close to or away from the supporting layer according to the rock surrounding layer offset measured by the displacement measuring meter. When the surrounding rock layer deviates due to landslide and other reasons, the displacement meter can measure the deviation amount of the surrounding rock layer and send a sensing signal to the hydraulic part, so that the hydraulic part controls the sliding part to be close to or away from the supporting layer according to the deviation amount, supporting compensation of the supporting layer and adaptive adjustment of supporting stress of the steel lining are achieved, and the supporting effect of the supporting layer is improved. Collapse of the hydrogen storage reservoir is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of underground hydrogen storage caverns, and particularly to an underground tunnel - type hydrogen storage cavern structure. Background Art

[0002] With the continuous progress of the technology for the development and utilization of underground space, hydrogen storage caverns are regarded as one of the most feasible development directions in large - scale hydrogen storage technologies. Compared with other storage methods, hydrogen storage caverns have the advantages of "large storage capacity, low cost, high safety, and good sealing".

[0003] The prior art with the publication number CN117108358A discloses an underground gas storage cavern composite drainage and gas leakage monitoring lining system, which is successively provided with a sealing layer, a sliding layer, a steel fiber concrete lining layer, a waterproof layer, a permeable concrete lining layer, and a support layer from inside to outside. The support layer is in close contact with the surrounding rock, and the area enclosed by the sealing layer forms an underground gas storage cavern; the steel fiber concrete lining layer includes a first lining structure and a second lining structure, where the first lining structure is located above the second lining structure and the thickness of the first lining structure is less than that of the second lining structure; a drainage pipe is arranged in the lower half of the permeable concrete lining layer; a gas leakage monitoring pipe is arranged in the upper half of the permeable concrete lining layer, and the bottom of the gas leakage monitoring pipe is in contact with the surface of the waterproof layer.

[0004] However, the existing underground hydrogen storage cavern still has deficiencies. For example, although the hydrogen storage cavern improves the support stability of the hydrogen storage cavern by setting a support layer, it cannot measure the support stress of the hydrogen storage cavern and cannot adaptively adjust according to the actual support stress borne, resulting in the hydrogen storage cavern being unable to prevent the risk of collapse of the hydrogen storage cavern. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above - mentioned technical deficiencies, and propose an underground tunnel - type hydrogen storage cavern structure to solve the technical problem that in the prior art, the hydrogen storage cavern cannot measure the actual support stress it bears and cannot adaptively adjust according to the actual support stress borne, resulting in the hydrogen storage cavern being unable to prevent the risk of collapse of the hydrogen storage cavern.

[0006] To achieve the above - mentioned technical purpose, the present invention adopts the following technical solutions: The present invention provides an underground tunnel - type hydrogen storage cavern structure, including: A steel inner lining, inside which a storage space for storing gas is formed; A support layer, covering the outside of the steel inner lining; and The support adjustment assembly includes a displacement measuring device and an adjustment mechanism. The adjustment mechanism includes a hydraulic component and a sliding component. The sliding component abuts against the outer side of the support layer. The hydraulic component connects the sliding component and the displacement measuring device, and the hydraulic component can drive the sliding component to slide closer to or away from the support layer according to the offset of the surrounding rock layer measured by the displacement measuring device.

[0007] In some embodiments, the adjustment mechanism further includes a fixed cylinder. The sliding component includes a slider, a connecting rod, and a pressing block connected in sequence. The slider is slidably connected to the inner wall of the fixed cylinder, and the side of the pressing block facing away from the connecting rod abuts against the support layer.

[0008] In some embodiments, the side of the pressing block facing away from the connecting rod is an arc surface, and the arc surface completely fits the support layer.

[0009] In some embodiments, there is a damping layer on the outer side of the support layer, and the arc surface completely fits the damping layer.

[0010] In some embodiments, there are multiple displacement measuring devices and multiple adjustment mechanisms. The multiple displacement measuring devices and the multiple adjustment mechanisms are all arranged around the circumference of the steel inner lining in the surrounding rock layer.

[0011] In some embodiments, the underground tunnel - type hydrogen storage structure further includes a temperature control mechanism. The temperature control mechanism is arranged in the support layer and is used to detect and adjust the temperature of the support layer.

[0012] In some embodiments, the temperature control mechanism includes a support frame, an optical fiber sensor, and a control terminal. The support frame is embedded inside the support layer. The optical fiber sensor is arranged on the support frame to detect the temperature, stress, and strain of the support layer. The control terminal is connected to the optical fiber sensor.

[0013] In some embodiments, the temperature control mechanism further includes a heat conduction tube and a heat conduction liquid chamber connected to each other. The heat conduction tube is embedded inside the support layer. The heat conduction liquid chamber is connected to the control terminal and can, according to the temperature detected by the optical fiber sensor, enable the control terminal to control the heat conduction liquid chamber to circulate and input heat conduction liquid into the heat conduction tube.

[0014] In some embodiments, the support frame includes multiple circumferential ribs and multiple vertical ribs. The multiple circumferential ribs are arranged at intervals along the length extension direction of the steel inner lining. The multiple vertical ribs are connected along the circumference of the circumferential ribs, and each vertical rib is connected to multiple circumferential ribs.

[0015] In some embodiments, the heat conduction tube is connected to the vertical rib and is arranged along the length extension direction of the vertical rib.

[0016] Compared with the prior art, the storage space formed inside the steel lining of the underground tunnel - type hydrogen storage structure provided by the present invention can be used to store gases, such as hydrogen. The support layer is wrapped around the steel lining to protect the steel lining. The free end of the sliding member abuts against the support layer, and through the support layer, it supports the steel lining, preventing the collapse caused by excessive air pressure inside the steel lining. When the surrounding rock layer shifts due to various reasons (such as excessive internal air pressure, landslides, etc.), the displacement gauge can measure the displacement of the surrounding rock layer and send a sensing signal to the hydraulic component, so that the hydraulic component controls the sliding member to approach or move away from the support layer according to the displacement, achieving the support compensation effect on the support layer and adaptively adjusting the support stress on the steel lining, and being able to prevent the risk of hydrogen storage collapse. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the underground tunnel - type hydrogen storage structure provided by the embodiment of the present invention during operation; Figure 2 is a schematic structural diagram of the underground tunnel - type hydrogen storage structure fixed in the surrounding rock layer provided by the embodiment of the present invention; Figure 3 is a schematic structural diagram of the adjustment mechanism provided by the embodiment of the present invention; Figure 4 is a schematic structural diagram of the temperature control mechanism provided by the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order 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 drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] In order to solve the technical problem in the prior art that the hydrogen storage cannot measure the actual support stress it bears and cannot adaptively adjust according to the actual support stress, resulting in the inability to prevent the risk of hydrogen storage collapse, the present invention provides an underground tunnel - type hydrogen storage structure, which can achieve adaptive compensation of the support force for the support layer according to the stress change of the surrounding rock layer, adaptively adjust the support stress on the steel lining, and prevent the risk of hydrogen storage collapse.

[0020] It should be noted that the underground tunnel - type hydrogen storage structure described in the present invention is used for but not limited to hydrogen gas storage, etc. For the convenience of description, in the present invention, only the case where the underground tunnel - type hydrogen storage structure is applied to a hydrogen gas storage is taken as an example for description, and the principle of applying the underground tunnel - type hydrogen storage structure to other types of equipment is essentially the same as that applied to the hydrogen gas storage, and will not be elaborated here one by one.

[0021] Please refer to Figure 1 and Figure 2, Figure 1 This is a schematic structural diagram of an underground tunnel - type hydrogen storage structure in an embodiment of the present invention. The underground tunnel - type hydrogen storage structure includes a steel inner lining 1, a support layer 2, and a support adjustment assembly 3. A storage space 11 for storing gas is formed inside the steel inner lining 1. Among them, the storage space 11 can be used to store gases with high air pressure requirements, such as hydrogen. The support layer 2 is coated on the outer side of the steel inner lining 1. The support adjustment assembly 3 includes an adjustment mechanism 31 and a displacement measuring instrument 32. The adjustment mechanism 31 includes a fixed cylinder 311 and a sliding member 312. Both the displacement measuring instrument 32 and the fixed cylinder 311 are arranged in the surrounding rock layer 4. The sliding member 312 is slidably arranged in the fixed cylinder 311 and abuts against the outer side of the support layer 2. The sliding member 312 can slide closer to or farther away from the support layer 2 according to the offset amount (stress change) of the surrounding rock layer 4 measured by the displacement measuring instrument 32. Among them, the surrounding rock layer 4 refers to the rock or soil layer within a certain range around the cavity after the excavation of underground projects (such as tunnels, caverns, etc.). These rock or soil layers were originally in a natural equilibrium state, and their stress state will change after excavation, thus affecting the underground structure.

[0022] In this embodiment, the steel inner lining 1 can be formed by sealing and welding the heads and tails of multiple cylindrical steel pipes to form a relatively long and large storage space 11 for storing gas, such as hydrogen. Since the air pressure of hydrogen is relatively high, it is necessary to coat the support layer 2 on the outer side of the steel inner lining 1. As the main load - bearing unit plate for the high internal pressure of the hydrogen storage, the support layer 2 supports the steel inner lining 1 to prevent the steel inner lining 1 from being damaged or deformed due to the long - term action of atmospheric pressure.

[0023] The displacement measuring instrument 32 is buried in the surrounding rock layer above the steel inner lining 1 for real - time monitoring of the displacement and deformation of the surrounding rock layer. The adjustment mechanism 31 is arranged on the outermost layer of the hydrogen storage and abuts against the support layer 2 through the sliding member 312. It can adjust the support axial force of the support layer 2 on the steel inner lining 1 in real - time according to the displacement and deformation of the surrounding rock layer, so as to resist the high air pressure inside the steel inner lining 1. The support compensation effect on the steel inner lining 1 and the adaptive adjustment of the support stress of the steel inner lining can prevent the risk of the collapse of the hydrogen storage.

[0024] In one of the embodiments, please refer to Figure 3, the sliding member 312 includes a slider 313, a connecting rod 314, and a pressing block 315 connected in sequence. The slider 313 is slidably connected to the inner wall of the fixed cylinder 311, and the side of the pressing block 315 facing away from the connecting rod 314 abuts against the support layer 2. In this embodiment, the slider 313 is slidably connected to the inner wall of the fixed cylinder 311, mainly for guiding the reciprocating sliding of the sliding member 312, so that the sliding member 312 slides stably. In addition, the contact area between the slider 313 and the inner wall of the fixed cylinder 311 is small, the damping is small, and the reciprocating sliding of the sliding member 312 is convenient. The connecting rod 314 mainly plays a connecting role, for connecting the slider 313 and the pressing block 315, so that the slider 313 can drive the pressing block 315 to move when sliding. The pressing block 315 is mainly used to abut against the outer wall of the support layer 2, so as to indirectly apply the support axial force of the steel lining 1 through the support layer 2 and resist the high air pressure inside the steel lining 1.

[0025] Further, please refer to Figure 3 , the side of the pressing block 315 facing away from the connecting rod 314 is an arc surface, and the arc surface completely fits the support layer 2, so that the contact area between the pressing block 315 and the support layer 2 is large, and a stable support and limiting effect can be formed on the support layer 2.

[0026] Further, please refer to Figure 2 , the outer side of the support layer 2 has a damping layer 21, and the arc surface completely fits the damping layer 21. The damping layer 21 in this embodiment is made of rubber material, so that there is a large damping force between the pressing block 315 and the damping layer 21, and the two are not easy to slip. In addition, the damping layer 21 can also be used to disperse and buffer the support axial force of the support layer 2.

[0027] In one embodiment, please refer to Figure 3 , the adjusting mechanism 31 further includes a hydraulic member 316. The hydraulic member 316 is connected to the slider 313 and the displacement gauge 32, and can drive the slider 313 to slide closer to or away from the support layer 2 according to the offset of the surrounding rock layer measured by the displacement gauge 32. In this embodiment, the sliding of the slider 313 can be controlled by the hydraulic member 316, and the hydraulic member 316 can drive the slider 313 to reciprocate when working. The hydraulic member 316 is arranged inside the fixed cylinder 311, and the fixed cylinder 311 can protect the hydraulic member 316. In addition, the hydraulic member 316 and the displacement gauge 32 can both be connected to the same controller (not shown in the figure). The displacement gauge 32 can transmit the detected offset data of the surrounding rock layer 4 to the controller, and the controller can control the hydraulic member 316 to drive the slider 313 to slide closer to or away from the support layer 2 according to the offset data, so that the pressing block 315 always maintains the effect of tightly abutting the support layer 2. The offset of the surrounding rock layer is mainly caused by natural disasters and internal gas pressure, such as landslides or excessive internal gas pressure. Therefore, in this embodiment, by setting the adjusting mechanism 31 to adaptively drive the pressing block 315 to always tightly abut the support layer 2, the stable support of the steel lining 1 is achieved.

[0028] In one embodiment, please refer to Figure 2 , a plurality of the above displacement gauges 32 and adjusting mechanisms 31 are provided, and the numbers of both are the same. The plurality of displacement gauges 32 and the plurality of adjusting mechanisms 31 are both arranged around the circumferential side of the steel lining 1 in the surrounding rock layer 4. In this embodiment, the plurality of displacement gauges 32 and the plurality of adjusting mechanisms 31 are both arranged in a semi-circular shape with the central axis of the steel lining 1 as the axis, so as to measure the offset of the surrounding rock layer 4 from multiple angles and multiple positions, and abut and support multiple parts on the circumferential side of the support layer 2, thereby playing a more stable supporting role for the steel lining 1.

[0029] In one embodiment, please refer to Figure 1 , the underground tunnel-type hydrogen storage tank structure further includes a temperature control mechanism 5. The temperature control mechanism 5 is arranged in the support layer 2 and is used to detect and adjust the temperature of the support layer 2. In this embodiment, the main component of the support layer 2 is high-performance concrete. As the core material of the underground hydrogen storage tank, its mechanical properties and construction quality will directly affect the success or failure of the entire hydrogen storage tank project. It is difficult to control the temperature of high-performance concrete lining during pouring and curing. During the pouring of concrete, the exothermic hydration reaction of the concrete will cause the temperature of the concrete to rise. If the concrete is not cooled in time, concrete cracks may be caused due to exceeding the design allowable temperature difference, damaging the integrity and sealing of the hydrogen storage tank structure. In addition, precise temperature control is required during the curing of high-performance concrete to ensure that the overall performance of the concrete is not affected by the temperature difference of the concrete. Therefore, in this embodiment, a temperature control mechanism 5 is provided to regulate the temperature of the concrete to avoid cracks in the support layer 2.

[0030] In one embodiment, please refer to Figure 1 , the temperature control mechanism 5 includes a support frame 51, an optical fiber sensor 52 and a control terminal 53. The support frame 51 is embedded inside the support layer 2. The optical fiber sensor 52 has the function of measuring temperature. The optical fiber sensor 52 is arranged on the support frame 51 and contacts the support layer 2 to monitor the temperature of the support layer 2 in real time. The control terminal 53 is connected to the optical fiber sensor 52. In this embodiment, during the process of pouring high-performance concrete to form the support layer 2, the optical fiber sensor 52 can be first installed on the support frame 5, and then the support frame 51 together with the optical fiber sensor 52 can be placed into the high-performance concrete to install and fix the optical fiber sensor 52. At the same time, the support frame 5 can also play a supporting role for the support layer 2.

[0031] Furthermore, please refer to Figure 4, the support frame 51 includes a plurality of circumferential ribs 511 and a plurality of vertical ribs 512. The plurality of circumferential ribs 511 are arranged at intervals along the length extension direction of the steel inner liner 1. The plurality of vertical ribs 512 are connected along the circumferential side of the circumferential ribs 511, and each vertical rib 512 is connected to a plurality of circumferential ribs 511, for example, by welding. In this embodiment, the plurality of circumferential ribs 511 and the plurality of vertical ribs 512 are horizontally and vertically connected to form a steel cage shape. Embedding the support frame 51 of this shape inside the support layer 2 can play a stable supporting role for the support layer 2, making the support layer 2 not easily collapse.

[0032] Further, please refer to Figure 1 , the temperature control mechanism 5 further includes a heat conduction tube and a heat conduction liquid tank 55 which are connected. The heat conduction tube is embedded inside the support layer 2. The heat conduction liquid tank 55 is connected to the control terminal 53 and can, according to the temperature of the support layer 2 detected by the optical fiber sensor 52, enable the control terminal 53 to control the heat conduction liquid tank 55 to cool or heat the heat conduction tube to a preset temperature. In this embodiment, the heat conduction tube includes a liquid inlet tube 56 and a liquid outlet tube 58. The temperature control mechanism 5 further includes a liquid inlet pump 57 and a liquid outlet pump 59. The liquid inlet tube 56 and the liquid outlet tube 58 are respectively connected to both ends of the heat exchange tube 54. The liquid inlet pump 57 is arranged on the liquid inlet tube 56, and the liquid outlet pump 59 is arranged on the liquid outlet tube 58. The heat conduction liquid tank 55 is arranged on the liquid outlet tube 58. The heat conduction liquid tank 55 stores a heat conduction liquid 50 at a preset temperature. When both the liquid inlet pump 57 and the liquid outlet pump 59 start to work, it can drive the heat conduction liquid 50 in the heat conduction liquid tank 55 to sequentially pass through the liquid inlet tube 56, the liquid inlet pump 57, the heat exchange tube 54, the liquid outlet pump 59 and the liquid outlet tube 58, and the heat conduction liquid 50 circulates. The temperature of the support layer 2 is adjusted by the way of heat conduction in the heat exchange tube 54. The heat conduction liquid tank 55 has components that can cool or heat the heat conduction liquid 50, so as to reduce or increase the temperature of the heat conduction liquid according to actual needs. The heat conduction liquid can adjust the temperature of the support layer 2 when flowing through the support layer 2. In addition, the control terminal 53 has a display screen, and the temperature of the support layer 2 measured by the optical fiber sensor 52 can be displayed on the display screen of the control terminal 53 for the staff to view. The staff can control the heat conduction liquid tank 55 to cool or heat the heat conduction liquid 50 according to the temperature requirement of the support layer 2 to adjust the temperature of the support layer 2.

[0033] The optical fiber sensor 52 can be connected to the same controller as the displacement gauge 32 and is connected to the hydraulic component 316 through this controller. In addition to being able to detect the temperature of the high-performance concrete, the optical fiber sensor 52 can also detect the offset of the high-performance concrete and transmit the offset data to the controller. The controller can control the hydraulic component 316 to drive the slider 313 to slide closer to or away from the support layer 2 according to the offset data, so that the pressing block 315 always maintains the effect of tightly abutting against the support layer 2, thereby compensating for the support of the steel inner liner and adaptively adjusting the support stress of the steel inner liner, and being able to prevent the risk of the hydrogen storage tank from collapsing.

[0034] There are multiple and consistent heat exchange tubes 54 and fiber optic sensors 52. These multiple heat exchange tubes 54 and fiber optic sensors 52 are arranged around the annular ribs 511, and each heat exchange tube 54 and fiber optic sensor 52 can be secured to the vertical ribs 512 using thin wire. This embodiment, by providing multiple heat exchange tubes 54 and fiber optic sensors 52, enables multi-directional temperature measurement and multi-directional temperature adjustment of the support layer 2, thereby improving the accuracy of temperature measurement and the efficiency of temperature adjustment of the support layer 2.

[0035] In order to better understand the present invention, the following Figures 1 to 4 The technical solution of the present invention is described in detail: The storage space 11 formed inside the steel lining 1 of the underground tunnel type hydrogen storage structure provided by the present invention can be used to store gas, such as hydrogen. The support layer 2 is coated on the steel lining 1 to protect the steel lining 1. The free end of the sliding member 312 abuts against the support layer 2, and the steel lining 1 is supported by the support layer 2 to prevent the steel lining 1 from collapsing due to excessive air pressure. When the surrounding rock layer 4 is offset due to various reasons (such as excessive internal air pressure, landslide, etc.), the displacement meter 32 can measure the offset of the surrounding rock layer 4 and transmit the offset signal to the hydraulic component 316. The hydraulic component 316 controls the sliding member 312 to move closer to or away from the support layer 2 according to the offset, so as to achieve a supporting compensation effect on the support layer 2, and adaptively adjust the supporting stress of the steel lining 1, which can prevent the risk of collapse of the hydrogen storage tank.

[0036] The construction method of the above-mentioned underground tunnel type hydrogen storage structure is as follows: S1. Construction of hydrogen storage cavern: Through on-site investigation and geological survey, excavate hydrogen storage cavern in abandoned mine or artificially transform existing abandoned mine cave to complete the construction of hydrogen storage cavern; S2 installation displacement meter 32: in the hydrogen storage cavern above the hydrogen storage reservoir as the axis of the semicircular drilling machine to form a rock displacement meter mounting hole, the displacement meter 32 is installed inside the mounting hole and grouting fixed to complete the construction and installation of the displacement meter; S3. Fabrication of support layer 2: A semicircular support installation hole is formed directly above the hydrogen storage cavern using a rock drill. The support layer is fixed inside the support installation hole using high-strength bolts and filled with concrete to complete the construction and installation of the support layer. S4. Fabricate the cooling system: Lay a high-damping rubber layer on the inner side of the support layer and install a support frame 51 in the hydrogen storage cavern according to the design requirements. Fiber optic sensors 52 and heat exchange tubes 54 are installed on the vertical ribs 512 of the support frame 51 by tying with steel wire. Then, install the liquid inlet and outlet pipes 56 and 58, connecting them to the thermal liquid tank 55. Install a data transmission line connected to the control terminal 53, completing the construction and installation of the cooling system. S5. Fabricate the steel lining 1: Weld and fix a number of circular steel rings by a welding machine to form a cylindrical steel lining 1, and sandblast and polish the interior of the steel lining 1 to level it, completing the construction and installation of the steel lining 1; S6. Pour high-performance concrete into the support frame 51: Use mechanical equipment to push the completed steel lining 1 into the hydrogen storage cavern. Install multiple circular supports inside the steel lining 1 according to the design requirements to support and strengthen the steel lining 1. Use the steel lining 1 as an internal formwork to pour high-performance concrete into the support frame 51 to form a high-performance concrete lining layer, and regulate the temperature during the pouring and curing process of the high-performance concrete through a cooling system to ensure the construction quality and overall performance of the high-performance concrete. Thus, the construction of the underground tunnel-type hydrogen storage cavern structure is completed; S7. Operation of the underground hydrogen storage cavern: Real-time monitor the displacement and deformation of the surrounding rock layer 4 through the displacement gauge 32, and real-time obtain the stress and strain data of the high-performance concrete lining layer through the fiber optic sensor 52. According to the changes in the displacement and deformation of the surrounding rock layer 4 and the stress and strain data of the high-performance concrete lining layer, real-time regulate the support axial force of the support layer 2 on the hydrogen storage cavern through the control system to ensure the overall stability of the hydrogen storage cavern structure.

[0037] The specific implementation manners of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An underground tunnel - type hydrogen storage structure, characterized in that, Comprising: A steel inner lining, with a storage space for storing gas formed inside; A support layer, covering the outer side of the steel inner lining; And A support adjustment assembly, including a displacement gauge and an adjustment mechanism. The adjustment mechanism includes a hydraulic component and a sliding component. The sliding component abuts against the outer side of the support layer. The hydraulic component connects the sliding component and the displacement gauge. The hydraulic component can drive the sliding component to slide closer to or away from the support layer according to the offset of the surrounding rock layer measured by the displacement gauge.

2. The underground tunnel-type hydrogen storage reservoir structure according to claim 1, characterized in that, The adjustment mechanism further includes a fixed cylinder. The sliding component includes a slider, a connecting rod, and a pressing block connected in sequence. The slider is slidably connected to the inner wall of the fixed cylinder. The side of the pressing block facing away from the connecting rod abuts against the support layer.

3. The underground tunnel-type hydrogen storage reservoir structure according to claim 2, characterized in that, The side of the pressing block facing away from the connecting rod is an arc surface, and the arc surface completely fits the support layer.

4. The underground tunnel-type hydrogen storage structure according to claim 3, wherein A damping layer is provided on the outer side of the support layer, and the arc surface completely fits the damping layer.

5. The underground tunnel - type hydrogen storage reservoir structure according to claim 1, characterized in that, A plurality of the displacement gauges and the adjustment mechanisms are provided. The plurality of displacement gauges and the plurality of adjustment mechanisms are all arranged around the circumference of the steel inner lining in the surrounding rock layer.

6. The underground tunnel-type hydrogen storage structure according to claim 1, characterized in that, The underground tunnel-type hydrogen storage tank structure further includes a temperature control mechanism, which is arranged on the support layer and is used to detect and adjust the temperature of the support layer.

7. The structure of the underground tunnel - type hydrogen storage reservoir according to claim 6, characterized in that, The temperature control mechanism includes a support frame, an optical fiber sensor, and a control terminal. The support frame is embedded inside the support layer. The optical fiber sensor is arranged on the support frame to detect the temperature, stress, and strain of the support layer. The control terminal is connected to the optical fiber sensor.

8. The underground tunnel - type hydrogen storage reservoir structure according to claim 7, characterized in that, The temperature control mechanism further includes a heat conduction tube and a heat conduction liquid tank connected to each other. The heat conduction tube is embedded inside the support layer. The heat conduction liquid tank is connected to the control terminal and can, according to the temperature detected by the optical fiber sensor, enable the control terminal to control the heat conduction liquid tank to circulate and input heat conduction liquid into the heat conduction tube.

9. The structure of the underground tunnel - type hydrogen storage reservoir according to claim 8, characterized in that, The support frame includes a plurality of circumferential ribs and a plurality of vertical ribs. The plurality of circumferential ribs are arranged at intervals along the length extension direction of the steel inner lining. The plurality of vertical ribs are connected along the circumference of the circumferential ribs, and each vertical rib is connected to a plurality of circumferential ribs.

10. The underground tunnel-type hydrogen storage reservoir structure according to claim 9, characterized in that, The heat conduction tube is connected to the vertical rib and is arranged along the length extension direction of the vertical rib.

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