Adaptive deformation structure of sealing layer of gas storage chamber and gas storage chamber

Abstract

The utility model relates to the technical field of compressed air energy storage, in particular to an adaptive deformation structure of a sealing layer of a gas storage chamber and the gas storage chamber, the adaptive deformation structure comprises the sealing layer, a concrete lining layer and an elastic filling piece, the sealing layer covers the inner surface of the concrete lining layer, and the elastic filling piece covers the inner surface of the concrete lining layer. The sealing layer protrudes in the direction away from the concrete lining layer, a deformation space is formed between the sealing layer and the concrete lining layer, and the deformation space is filled with the elastic filling piece. A plurality of first pressure-bearing holes are formed in the elastic filling piece, corrugated pipes are arranged in the first pressure-bearing holes in a penetrating mode, and the corrugated pipes are filled with first pressure-bearing media. A common straight pipe structure is improved into the corrugated pipe, the corrugated pipe is provided with the corrugated side wall structure and has higher pressure bearing performance compared with a straight pipe, in addition, the corrugated pipe can be filled with the first pressure bearing medium, and the pressure resistance of the corrugated pipe and the elastic filling piece can be further enhanced.

Description

Technical Field

[0001] This utility model relates to the field of compressed air energy storage technology, and in particular to an adaptive deformation structure of the sealing layer of an air storage chamber and an air storage chamber. Background Technology

[0002] Artificial gas storage chambers offer high safety and flexible site selection, and are currently the most common type of compressed air energy storage project under construction or in the planning and filing stage. Typically, a gas storage chamber's layered structure consists of a sealing layer, a sliding layer, a concrete lining layer, and a surrounding rock layer. The lining layer and surrounding rock layer are the main load-bearing components, while the sealing layer primarily serves a sealing function. Existing sealing layers are typically rigid, integral structures, such as steel liners. However, under internal pressure, the steel lining deforms and expands radially within the chamber. With repeated inflation and deflation of the chamber causing constant pressure fluctuations, the steel lining material may crack or fracture due to fatigue, severely impacting its sealing performance and potentially leading to seal failure and leakage. To address the deformation or cracking of the steel lining under pressure and tension, existing technologies design the steel lining as a corrugated structure, filling the gap between the corrugations and the concrete lining with rubber material for cushioning. This allows the corrugations to compensate for deformation under pressure, reducing tensile deformation. However, under higher internal pressure, the deformation at the corrugations also increases. After pressure is released, the steel lining and the filled rubber material at the corrugations are prone to plastic deformation and cannot recover. Therefore, further technical improvements to the existing corrugated structure are needed to address the insufficient pressure-bearing capacity. Utility Model Content

[0003] The purpose of this invention is to overcome the technical problem that the corrugated structure of the steel lining of the gas storage chamber is prone to plastic deformation and cannot be restored due to insufficient pressure bearing capacity when subjected to large internal pressure in the prior art, and to provide an adaptable deformation structure for the sealing layer of the gas storage chamber and the gas storage chamber.

[0004] In a first aspect, the present invention provides an adaptive deformation structure for a gas storage chamber sealing layer, comprising a sealing layer, a concrete lining layer, and an elastic filler. The sealing layer covers the inner surface of the concrete lining layer, and the sealing layer protrudes away from the concrete lining layer to form a deformation space with the concrete lining layer. The elastic filler fills the deformation space. The elastic filler has a plurality of first pressure-bearing holes, and a corrugated pipe is inserted through the first pressure-bearing holes. The corrugated pipe is filled with a first pressure-bearing medium.

[0005] Existing chamber sealing layer corrugated arch structures incorporate straight pipe structures within the internal filling layer to enhance pressure resistance and reduce rubber content, thus lowering costs. However, when the internal pressure in the chamber reaches 10 MPa or higher, ordinary straight pipe structures, due to their thin walls, are prone to plastic deformation and cannot recover after pressure relief. Furthermore, the smooth outer wall of the straight pipe structure allows for relative sliding between the rubber filling layer and the outer wall of the straight pipe under pressure. In other words, under high internal pressure, the straight pipe is insufficient to limit the compression deformation of the rubber filling layer. Therefore, the straight pipe offers limited improvement in the pressure-bearing performance of the rubber filling layer. This application adds a 5-hole or multi-hole pressure-resistant and deformation-limiting structure within the filling body and employs corrugated pipes for pressure resistance. The corrugated pipes have… The bellows has a corrugated sidewall structure, and the inner wall structure of the first pressure-bearing hole can also be designed as a corrugated structure that matches the outer wall of the bellows. The extension direction of the corrugations can be set along the axial or circumferential direction of the bellows. After the elastic filler is compressed, the corrugations can be used to restrict the deformation and extension of the elastic filler near the pressure-bearing hole. The bellows itself also has stronger pressure-bearing performance than straight pipes. Under high pressure, its deformation is less than that of straight pipes. In addition, the first pressure-bearing medium can be filled in the bellows, such as water, polydimethylsiloxane (PDMS), also known as dimethyl silicone oil; or vegetable oil (such as olive oil, rapeseed oil) and mineral oil (such as gasoline, diesel oil), which can further enhance the pressure resistance and deformation restriction performance of the bellows and elastic filler.

[0006] Alternatively, the elastic filler may have a deformation groove on the side facing the concrete lining layer.

[0007] Alternatively, the elastic filler may also have a second pressure-bearing hole, and a plurality of the first pressure-bearing holes are arranged around the second pressure-bearing hole along the circumference of the second pressure-bearing hole, and a first pressure-bearing tube is inserted through the second pressure-bearing hole.

[0008] Alternatively, the inner diameter of the second pressure-bearing hole is larger than the inner diameter of the first pressure-bearing hole.

[0009] Alternatively, the first pressure-bearing pipe may be filled with a second pressure-bearing medium.

[0010] Alternatively, the elastic filler may also have a plurality of third pressure-bearing holes, the third pressure-bearing holes being located between the first pressure-bearing holes and the sealing layer, and a second pressure-bearing tube passing through the third pressure-bearing holes.

[0011] Alternatively, the second pressure-bearing pipe may be filled with a third pressure-bearing medium.

[0012] Alternatively, a plurality of the third pressure-bearing holes are located on both sides of the axis of symmetry of the elastic filler, and the plurality of the third pressure-bearing holes are axially symmetrical about the axis of symmetry of the elastic filler.

[0013] Alternatively, the spacing between a plurality of the first pressure-bearing holes and the sealing layer is the same.

[0014] In a second aspect, the present invention provides a gas storage chamber, comprising a surrounding rock layer, a sliding layer, and an adaptive deformation structure of a gas storage chamber sealing layer as described above. The adaptive deformation structure is arranged circumferentially along the gas storage chamber. The surrounding rock layer is located outside the concrete lining layer, and the sliding layer is located between the sealing layer and the concrete lining layer.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model provides an adaptive deformation structure for the sealing layer of a gas storage chamber and a gas storage chamber. This application improves the ordinary straight pipe structure in the existing sealing layer corrugated structure to a corrugated pipe. The corrugated pipe has a corrugated sidewall structure, and the inner wall structure of the pressure-bearing hole can also be designed as a corrugated structure that matches the outer wall of the corrugated pipe. The extension direction of the corrugations can be set along the axial or circumferential direction of the corrugated pipe. After the elastic filler is compressed, the deformation and extension of the elastic filler near the pressure-bearing hole can be slowed down by the corrugation. The corrugated pipe itself also has stronger pressure-bearing performance than the straight pipe. Under high pressure, its deformation is less than that of the straight pipe. In addition, a first pressure-bearing medium, such as water, polydimethylsiloxane (PDMS), also known as dimethyl silicone oil; or vegetable oil (such as olive oil, rapeseed oil) and mineral oil (such as gasoline, diesel oil), can be filled in the corrugated pipe to further enhance the pressure resistance and deformation performance of the corrugated pipe and the elastic filler. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first structural design of the gas storage chamber sealing layer of this utility model (hidden elastic filler).

[0018] Figure 2 This is a schematic diagram of the first structural design of the gas storage chamber sealing layer of this utility model (showing the elastic filler).

[0019] Figure 3 This is a schematic diagram of the second structural variation of the gas storage chamber sealing layer of this utility model.

[0020] Marked in the image:

[0021] 1. Sealing layer; 2. Deformation space; 3. Elastic filler; 31. Deformation groove; 32. First pressure-bearing hole; 33. Second pressure-bearing hole; 34. Third pressure-bearing hole; 4. Concrete lining layer; 5. Corrugated pipe; 51. First pressure-bearing medium; 6. First pressure-bearing pipe; 61. Second pressure-bearing medium; 7. Second pressure-bearing pipe; 71. Third pressure-bearing medium. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0023] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0025] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0026] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0027] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0028] Example 1

[0029] This embodiment provides an adaptive deformation structure for the sealing layer of a gas storage chamber.

[0030] Figure 1 This is a schematic diagram of the first structural design of the gas storage chamber sealing layer of this utility model (hidden elastic filler). Figure 2 This is a schematic diagram of the first type of adaptive deformation structure of the gas storage chamber sealing layer of this utility model (showing the elastic filler); Figure 3 This is a schematic diagram of the second structural variation of the gas storage chamber sealing layer of this utility model.

[0031] like Figures 1 to 3 As shown in the figure, the adaptable deformation structure of the gas storage chamber sealing layer described in this embodiment may include a sealing layer 1, a concrete lining layer 4, and an elastic filler 3. Here, the sealing layer 1 may be a steel lining or other metal lining structure used to seal the chamber. The sealing layer 1 covers the inner surface of the concrete lining layer 4, that is, in the radial direction of the gas storage chamber, the sealing layer 1 is located inside the concrete lining layer 4. The sealing layer 1 protrudes in a direction away from the concrete lining layer 4 and forms a deformation space 2 with the concrete lining layer 4. The elastic filler 3 fills the deformation space 2. Here, the sealing layer 1 protrudes in a direction away from the concrete lining layer 4, that is, it protrudes inward along the radial direction of the gas storage chamber to form an arc-shaped structure similar to a corrugated arch. The elastic filler 3 may be rubber or a composite material containing rubber components, such as ethylene propylene diene monomer (EPDM), butadiene rubber (BR), styrene-butadiene rubber (SBR), etc.

[0032] The elastic filler 3 has multiple first pressure-bearing holes 32, and a bellows 5 passes through the first pressure-bearing holes 32. The bellows 5 is filled with a first pressure-bearing medium 51. Here, the axial direction of the first pressure-bearing holes 32 can be consistent with the axial direction of the gas storage chamber. The first pressure-bearing medium 51 can be a liquid, such as water, polydimethylsiloxane (PDMS), also known as dimethyl silicone oil; or vegetable oil (such as olive oil, rapeseed oil) and mineral oil (such as gasoline, diesel oil), or a gas, such as compressed air with a pressure not exceeding 0.5 MPa. The bellows 5 can be a small pipe bellows with a diameter of 30-50 mm, a wall thickness of 1-2 mm, and a waveform of U-shape or Ω-shape. This utility model does not limit the number of first pressure-bearing holes 32, the specific type of the first pressure-bearing medium 51, and the parameters of the bellows 5.

[0033] The placement of multiple first pressure-bearing holes 32 can follow the principle of axial symmetry. If there are 5 first pressure-bearing holes 32, 4 of them can be placed on either side of the axis of symmetry of the elastic filler 3, making each pair of the 4 first pressure-bearing holes 32 symmetrical about the axis of symmetry of the elastic filler 3. The other first pressure-bearing hole 32 is placed in the center of the elastic filler 3, that is, the center of this first pressure-bearing hole 32 coincides with the axis of symmetry of the elastic filler 3. If there are 4 first pressure-bearing holes 32... The four first pressure-bearing holes 32 can be opened on both sides of the axis of symmetry of the elastic filler 3, so that the four first pressure-bearing holes 32 are symmetrical about the axis of symmetry of the elastic filler 3 respectively. Similarly, the above axisymmetric setting rule can be extended to odd and even numbers of first pressure-bearing holes 32. When the number of first pressure-bearing holes 32 is odd, its setting rule can follow the above setting rule of five first pressure-bearing holes 32. When the number of first pressure-bearing holes 32 is even, its setting rule can follow the above setting rule of four first pressure-bearing holes 32.

[0034] The existing corrugated structure of the chamber sealing layer 1 uses a straight pipe structure inserted in the internal filling layer to enhance pressure resistance. However, when the internal pressure in the chamber reaches 10 MPa or more, the ordinary straight pipe structure is prone to plastic deformation and cannot recover after pressure relief. Furthermore, the straight pipe structure has a smooth outer wall, and under pressure, relative sliding easily occurs between the rubber filling layer on the outside of the straight pipe and the outer wall of the straight pipe. In other words, the straight pipe is difficult to limit the compression deformation of the rubber filling layer. Therefore, the straight pipe has limited improvement on the pressure-bearing performance of the rubber filling layer. This application improves the ordinary straight pipe structure to a corrugated pipe 5, which has a corrugated sidewall structure. The inner wall structure of the first pressure-bearing hole 32 can also be... The corrugated structure is designed to fit the outer wall of the corrugated pipe 5. The extension direction of the corrugations can be set along the axial or circumferential direction of the corrugated pipe 5. When the elastic filler 3 is compressed, the corrugations can be used to restrict the deformation and extension of the elastic filler 3 near the pressure-bearing hole. The corrugated pipe 5 itself also has stronger pressure-bearing performance than the straight pipe. Under high pressure, its deformation is less than that of the straight pipe. In addition, the first pressure-bearing medium 51 can be filled in the corrugated pipe 5, such as water, polydimethylsiloxane (PDMS), also known as dimethyl silicone oil; or vegetable oil (such as olive oil, rapeseed oil) and mineral oil (such as gasoline, diesel oil), which can further enhance the pressure resistance of the corrugated pipe 5 and the elastic filler 3.

[0035] In this embodiment, a deformation groove 31 is formed on the side of the elastic filler 3 facing the concrete lining layer 4. The deformation groove 31 can be located at the center of the contact surface between the elastic filler 3 and the concrete lining layer 4. The deformation groove 31 can penetrate the elastic filler 3 along the axial direction of the gas storage chamber, or it can not penetrate the elastic filler 3 and is only formed inside the elastic filler 3. The bottom surface of the deformation groove 31 can be formed as an arc surface. When the elastic filler 3 is compressed and deformed by the internal pressure of the gas storage chamber, the deformation groove 31 can expand to both sides, so that the bottom surface of the deformation groove 31 moves towards the concrete lining layer 4. When the internal pressure in the gas storage chamber reaches a sufficiently large level, the bottom of the deformation groove 31 can finally be compressed. The surface of the elastic filler 3 is in contact with the concrete lining layer 4, allowing the elastic filler 3 to be fully compressed and achieve a sufficiently large deformation. The sealing layer 1, which is in contact with the elastic filler 3, can move towards the concrete lining layer 4 as the elastic filler 3 is compressed. When the air storage chamber is subjected to internal pressure, the sealing layer 1 will expand radially as a whole, and the perimeter of the sealing layer 1 will increase accordingly after expansion. After the elastic filler 3 is compressed, the sealing layer 1 on both sides of the elastic filler 3 will adhere tightly to the concrete lining layer 4, which can be used to compensate for the increase in perimeter of the sealing layer 1 after expansion, so that the sealing layer 1 will not be stretched due to the increase in perimeter after expansion, thereby forming cracks in the sealing layer 1 and causing sealing failure. However, the present invention is not limited to this. The shape of the deformation groove 31 and its position on the elastic filler 3 can be arbitrarily selected according to the actual situation, and the present invention does not make specific limitations in this regard.

[0036] In this embodiment, the elastic filler 3 is also provided with a second pressure-bearing hole 33, and a plurality of first pressure-bearing holes 32 are arranged around the second pressure-bearing hole 33 along the circumference of the second pressure-bearing hole 33, and a first pressure-bearing tube 6 is inserted through the second pressure-bearing hole 33. The second pressure-bearing hole 33 can be set in the middle of the elastic filler 3, and multiple first pressure-bearing holes 32 can be arranged around the second pressure-bearing hole 33. Then, the first pressure-bearing tube 6 is inserted through the second pressure-bearing hole 33. This can further improve the compressive strength of the elastic filler 3. Specifically, when the elastic filler 3 and its outer sealing layer 1 are under pressure, the force direction at each point on the elastic filler 3 and its outer sealing layer 1 is all pointing towards the center of the elastic filler 3. By arranging multiple first pressure-bearing holes 32 around the second pressure-bearing hole 33, it can be ensured that the force direction at each point will pass through the first pressure-bearing hole 32 and the second pressure-bearing hole 33. In other words, the first pressure-bearing hole 32 and the second pressure-bearing hole 33 can be regarded as two levels of support in the elastic filler 3. This can make the elastic filler 3 recover better after being deformed under pressure and then depressurized. At the same time, it can also ensure that the elastic filler 3 generates sufficient deformation under pressure to meet the compensation amount of the circumference required after the expansion of the sealing layer 1.

[0037] Specifically, the first pressure-bearing pipe 6 can be a corrugated pipe 5, a straight pipe, or other pressure-bearing pipe with irregular sidewall structure, as long as it can meet the requirement of not undergoing plastic deformation under pressure. This utility model does not specifically limit the specific form and structure of the first pressure-bearing pipe 6.

[0038] Optionally, the inner diameter of the second pressure-bearing hole 33 is larger than the inner diameter of the first pressure-bearing hole 32. Here, the inner diameters of the second pressure-bearing hole 33 and the first pressure-bearing hole 32 can be the same or different. Preferably, the inner diameter of the second pressure-bearing hole 33 can be larger than the inner diameter of the first pressure-bearing hole 32. Since the compressive strength of the elastic filler 3 has been improved by superimposing the first pressure-bearing hole 32 and the second pressure-bearing hole 33 in the force direction, the inner diameter of the second pressure-bearing hole 33 can be appropriately increased to improve the compression deformation of the elastic filler 3 to meet the compensation amount of the perimeter required after the expansion of the sealing layer 1. Specifically, since the diameter of the second pressure-bearing hole 33 increases, the relative displacement between the elastic filler 3 around the second pressure-bearing hole 33 and the first pressure-bearing tube 6 will increase during compression. Therefore, the compression deformation of the elastic filler 3 around the second pressure-bearing hole 33 can be increased accordingly, so that the improvement of the compressive strength of the elastic filler 3 and the compression deformation amount are balanced, which can simultaneously meet the technical effect of achieving sufficient compression under pressure and ensuring complete recovery after depressurization.

[0039] Optionally, the first pressure-bearing pipe 6 may be filled with a second pressure-bearing medium 61. Here, the second pressure-bearing medium 61 can be a liquid, such as water, polydimethylsiloxane (PDMS), also known as dimethyl silicone oil; or vegetable oil (such as olive oil, rapeseed oil) and mineral oil (such as gasoline, diesel oil), or it can be a gas, such as compressed air with a pressure not exceeding 0.5 MPa. The second pressure-bearing medium 61 can further improve the pressure resistance of the first pressure-bearing pipe 6. Specifically, if the second pressure-bearing medium 61 is a pressure-resistant liquid, the characteristic that the pressure-resistant liquid is not easily compressed can be used for pressure resistance. If the second pressure-bearing medium 61 is a compressed gas, the internal pressure applied to the first pressure-bearing pipe 6 by the compressed gas itself can be used to balance the external pressure (and the internal pressure of the gas storage chamber) on the first pressure-bearing pipe 6 for pressure resistance. This utility model does not specifically limit the specific type of the second pressure-bearing medium 61.

[0040] In this embodiment, the elastic filler 3 is further provided with a plurality of third pressure-bearing holes 34. The third pressure-bearing holes 34 are located between the first pressure-bearing holes 32 and the sealing layer 1, and a second pressure-bearing tube 7 passes through the third pressure-bearing holes 34. Specifically, there can be two third pressure-bearing holes 34. The two third pressure-bearing holes 34 can be located at the corners on both sides of the elastic filler 3, that is, near the position where the sealing layer 1 and the concrete lining layer 4 are in contact. The third pressure-bearing holes 34 can be located between the first pressure-bearing holes 32 and the sealing layer 1. That is to say, the position of the third pressure-bearing holes 34 is closer to the sealing layer 1 than the first pressure-bearing holes 32. Two levels can also be formed between the first pressure-bearing holes 32 and the third pressure-bearing holes 34. For compressive strength, if a second pressure-bearing hole 33 is also provided, then a three-level compressive strength can be formed between the first pressure-bearing hole 32, the second pressure-bearing hole 33 and the third pressure-bearing hole 34, which can further improve the compressive strength of the elastic filler 3; a second pressure-bearing tube 7 can be inserted into the third pressure-bearing hole 34. Here, the shape of the third pressure-bearing hole 34 can be a triangle that matches the edge of the elastic filler 3, or it can be other shapes; the specific form of the second pressure-bearing tube 7 can be a corrugated pipe 5, a straight pipe or other pressure-bearing pipe with irregular sidewall structure, as long as it can meet the requirement of not undergoing plastic deformation under pressure. This utility model does not specifically limit the specific form and structure of the second pressure-bearing tube 7.

[0041] Optionally, the second pressure-bearing pipe 7 is filled with a third pressure-bearing medium 71. Here, the third pressure-bearing medium 71 can be a liquid, such as water, polydimethylsiloxane (PDMS), also known as dimethyl silicone oil; or vegetable oil (such as olive oil, rapeseed oil) and mineral oil (such as gasoline, diesel oil), or a gas, such as compressed air with a pressure not exceeding 0.5 MPa. The third pressure-bearing medium 71 can further improve the pressure resistance of the second pressure-bearing pipe 7. Specifically, if the third pressure-bearing medium 71 is a pressure-resistant liquid, the characteristic that the pressure-resistant liquid is not easily compressed can be used for pressure resistance. If the third pressure-bearing medium 71 is a compressed gas, the internal pressure applied to the second pressure-bearing pipe 7 by the compressed gas itself can be used to balance the external pressure (i.e., the internal pressure of the gas storage chamber) on the second pressure-bearing pipe 7 for pressure resistance. This utility model does not specifically limit the specific type of the third pressure-bearing medium 71.

[0042] In this embodiment, the third pressure-bearing holes 34 can be located on both sides of the axis of symmetry of the elastic filler 3, and the multiple third pressure-bearing holes 34 are arranged symmetrically along the axis of symmetry of the elastic filler 3. For example, when there are two third pressure-bearing holes 34, the two third pressure-bearing holes 34 are symmetrically opened on both sides of the axis of symmetry of the elastic filler 3. That is, the two third pressure-bearing holes 34 are arranged symmetrically with respect to the axis of symmetry of the elastic filler 3. This can ensure that the amount of compression deformation on both sides of the axis of symmetry of the elastic filler 3 is the same when it is compressed, so that the force and deformation on both sides are balanced, and there will be no imbalance caused by inconsistent deformation on both sides after being compressed. It can also ensure that both sides of the elastic filler 3 can return to their initial shape after the pressure is released.

[0043] In this embodiment, the spacing between the plurality of first pressure-bearing holes 32 and the sealing layer 1 can be the same. That is, the line connecting the plurality of first pressure-bearing holes 32 can be set parallel to the surface of the sealing layer 1, thereby making the first pressure-bearing holes 32 buried at the same depth at each position of the elastic filler 3. This ensures that the elastic filler 3 deforms at each position after being compressed, which means that the elastic filler 3 can deform uniformly at each position.

[0044] Example 2

[0045] This embodiment provides a gas storage chamber.

[0046] The gas storage chamber described in this embodiment may include a surrounding rock layer, a sliding layer, and an adaptive deformation structure of the gas storage chamber sealing layer as described in Embodiment 1.

[0047] In this embodiment, the adaptive deformation structure can be arranged circumferentially along the gas storage chamber, the surrounding rock layer can be located outside the concrete lining layer 4, and the sliding layer can be located between the sealing layer 1 and the concrete lining layer 4.

[0048] It should be noted that the adaptive deformation structure of the gas storage chamber sealing layer described in this embodiment is consistent with the adaptive deformation structure of the gas storage chamber sealing layer described in Embodiment 1, and will not be described in detail in this embodiment.

[0049] In summary, the adaptable deformation structure of the gas storage chamber sealing layer and the gas storage chamber of this utility model can be improved by replacing the ordinary straight pipe structure in the existing sealing layer corrugated structure with a corrugated pipe. The corrugated pipe has a corrugated sidewall structure, and the inner wall structure of the pressure-bearing hole can also be designed as a corrugated structure that matches the outer wall of the corrugated pipe. The extension direction of the corrugations can be set along the axial or circumferential direction of the corrugated pipe. After the elastic filler is compressed, the deformation and extension of the elastic filler near the pressure-bearing hole can be slowed down by the corrugation's restraining effect. The corrugated pipe itself also has stronger pressure-bearing performance than the straight pipe, and its deformation under high pressure is less than that of the straight pipe. In addition, the corrugated pipe can be filled with a first pressure-bearing medium, such as water, polydimethylsiloxane (PDMS), also known as dimethyl silicone oil; or vegetable oil (such as olive oil, rapeseed oil) and mineral oil (such as gasoline, diesel oil), which can further enhance the pressure resistance of the corrugated pipe and the elastic filler.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adaptive deformation structure for the sealing layer of a gas storage chamber, characterized in that, It includes a sealing layer (1), a concrete lining layer (4) and an elastic filler (3). The sealing layer (1) covers the inner surface of the concrete lining layer (4). The sealing layer (1) protrudes away from the concrete lining layer (4) and forms a deformation space (2) between the sealing layer (1) and the concrete lining layer (4). The elastic filler (3) fills the deformation space (2). The elastic filler (3) has a plurality of first pressure-bearing holes (32), and a corrugated tube (5) is inserted through the first pressure-bearing holes (32), and the corrugated tube (5) is filled with a first pressure-bearing medium (51).

2. The adaptable deformation structure of the gas storage chamber sealing layer according to claim 1, characterized in that, The elastic filler (3) has a deformation groove (31) on the side facing the concrete lining layer (4).

3. The adaptable deformation structure of the gas storage chamber sealing layer according to claim 1, characterized in that, The elastic filler (3) is also provided with a second pressure-bearing hole (33), and a plurality of first pressure-bearing holes (32) are arranged around the second pressure-bearing hole (33) along the circumference of the second pressure-bearing hole (33), and a first pressure-bearing tube (6) is inserted through the second pressure-bearing hole (33).

4. The adaptable deformation structure of the gas storage chamber sealing layer according to claim 3, characterized in that, The inner diameter of the second pressure-bearing hole (33) is larger than the inner diameter of the first pressure-bearing hole (32).

5. The adaptable deformation structure of the gas storage chamber sealing layer according to claim 3, characterized in that, The first pressure-bearing pipe (6) is filled with a second pressure-bearing medium (61).

6. The adaptable deformation structure of the gas storage chamber sealing layer according to any one of claims 1 to 5, characterized in that, The elastic filler (3) is also provided with a plurality of third pressure-bearing holes (34), the third pressure-bearing holes (34) are located between the first pressure-bearing hole (32) and the sealing layer (1), and a second pressure-bearing tube (7) is inserted through the third pressure-bearing hole (34).

7. The adaptable deformation structure of the gas storage chamber sealing layer according to claim 6, characterized in that, The second pressure-bearing pipe (7) is filled with a third pressure-bearing medium (71).

8. The adaptable deformation structure of the gas storage chamber sealing layer according to claim 6, characterized in that, The third pressure-bearing holes (34) are located on both sides of the axis of symmetry of the elastic filler (3), and the third pressure-bearing holes (34) are axially symmetrical about the axis of symmetry of the elastic filler (3).

9. The adaptable deformation structure of the gas storage chamber sealing layer according to any one of claims 1 to 5, characterized in that, The spacing between several of the first pressure-bearing holes (32) and the sealing layer (1) is the same.

10. A gas storage chamber, characterized in that, The gas storage chamber includes a surrounding rock layer, a sliding layer, and an adaptive deformation structure of the sealing layer of the gas storage chamber as described in any one of claims 1 to 9. The adaptive deformation structure is arranged along the circumference of the gas storage chamber. The surrounding rock layer is located outside the concrete lining layer (4), and the sliding layer is located between the sealing layer (1) and the concrete lining layer (4).

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