Gas storage system

Abstract

The gas storage system comprises a gas storage and a choke plug structure, the choke plug structure comprises a main pipeline, a first branch pipeline and a second branch pipeline, gas can be injected into the gas storage of the gas storage system through the main pipeline on the basis of the choke plug structure, and the gas enters the gas storage through the first branch pipeline and the second branch pipeline; in the gas discharging process of the gas storage system, gas can enter the main pipeline through the first branch pipeline and the second branch pipeline and then is discharged. When the gas storage system is used for bearing pressure, the annular gas storage is combined with the first branch pipeline and the second branch pipeline, so that the final pressure can be distributed on the first branch pipeline and the second branch pipeline even if the internal pressure of the gas storage is continuously changed; the first branch pipeline and the second branch pipeline are communicated with each other, so that the effect of balancing pressure can be achieved, the sealing performance of the choke plug structure is guaranteed, the probability of leakage is reduced, normal operation of a gas storage system is guaranteed, and the probability that the environment is polluted is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of gas storage technology, and in particular, to a gas storage system. Background Art

[0002] Energy storage is an important technical foundation for promoting and maintaining a balance between low carbon, safety and economy, and has been widely developed over the years. The gas storage reservoir is buried 150 meters underground to ensure the stability and safety of the underground space in the process of efficient energy storage and release. In the complex operation of underground gas storage, the sealing performance of equipment and pipelines is undoubtedly the key factor to ensure its long-term stable operation and absolute safety. As an important facility for storing a large amount of natural gas, the safety of underground gas storage is directly related to the safety of people's lives and property and the stable development of society. Therefore, the sealing performance requirements for various equipment and pipelines are extremely strict.

[0003] However, in actual application, we found that the existing bulkhead design of underground gas storage often has many problems. First of all, unstable sealing performance is a common problem. Due to the constant change of pressure inside the gas storage, the existing bulkhead design is often difficult to adapt to such pressure changes, resulting in reduced sealing performance and even leakage. This not only affects the normal operation of the gas storage, but also may cause pollution to the surrounding environment. Secondly, the difficulty in adapting to pressure changes is also a major drawback of the existing bulkhead design. As the pressure inside the gas storage increases or decreases, the bulkhead needs to be able to withstand such pressure changes without damage or leakage. However, the existing bulkhead design often finds it difficult to do this, which leads to problems during the pressure change process. These problems not only affect the normal operation of the gas storage, but may also cause safety hazards. Once there is a problem with the sealing performance, natural gas may leak into the external environment, which not only poses a threat to people's lives and property safety, but also may cause serious accidents such as fire and explosion. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] In view of this, an embodiment of the present application proposes a gas storage system, including:

[0006] A gas storage reservoir, wherein the gas storage reservoir is annular;

[0007] A bulkhead structure, the bulkhead structure being connected to the gas storage reservoir;

[0008] Among them, the bulkhead structure includes a main pipeline, a first branch pipeline and a second branch pipeline, the main pipeline is connected to the first branch pipeline and the second branch pipeline, the first branch pipeline and the second branch pipeline are located on both sides of the main pipeline, and the first branch pipeline and the second branch pipeline are connected to the gas storage reservoir.

[0009] In a feasible implementation manner, the bulkhead structure further includes:

[0010] a concrete layer, wherein the main pipe, the first branch pipe and the second branch pipe are formed in the concrete layer;

[0011] An end plate, located at the connection between the bulkhead structure and the gas storage reservoir, to limit the position of the concrete layer;

[0012] Wherein, the concrete layer extends to the output end of the gas storage system, and a deformation joint is left between the concrete layer and the output end of the gas storage system.

[0013] In a feasible implementation manner, the gas storage reservoir includes an inner lining steel plate, and the inner lining steel plate encloses the gas storage reservoir.

[0014] In a feasible implementation manner, at the connection between the bulkhead structure and the gas storage reservoir, the lining steel plate is formed with a bending portion, and the bending portion is buried in the concrete layer.

[0015] In a feasible implementation manner, the gas storage system further includes:

[0016] A reinforcing steel lining is connected to the inner lining steel plate and covers the bending portion.

[0017] In a feasible implementation manner, the gas storage system further includes:

[0018] A sealing layer is provided at the free end of the concrete layer.

[0019] A sealing strip is filled between the lining steel plate and the concrete layer.

[0020] In a feasible implementation manner, the gas storage system further includes:

[0021] A reinforcement ring is connected to the inner lining steel plate and is located in the concrete layer.

[0022] In a feasible embodiment, a transition portion is formed at the connection between the bulkhead structure and the gas storage reservoir, the thickness of the transition portion is greater than the thickness of the gas storage reservoir, and the thickness gradually decreases in the direction from the bulkhead structure to the gas storage reservoir.

[0023] In a feasible implementation manner, the gas storage system further includes:

[0024] A main pressure sensor, the main pressure sensor is arranged in the main pipeline;

[0025] a first branch pressure sensor, wherein the first branch pressure sensor is disposed in the first branch pipeline;

[0026] A second branch pressure sensor is disposed in the second branch pipeline.

[0027] In a feasible implementation manner, the gas storage system further includes: a processor, the processor being connected to the main pressure sensor, the first branch pressure sensor, and the second branch pressure sensor; the processor being configured to:

[0028] The difference between the detection results of the main pressure sensor and the first branch pressure sensor is a first difference;

[0029] The difference between the detection results of the main pressure sensor and the second branch pressure sensor is a second difference;

[0030] When the difference between the first difference and the second difference is greater than a warning threshold, a warning message is issued.

[0031] Compared with the prior art, the present invention has at least the following beneficial effects:

[0032] The gas storage system provided in the embodiment of the present application includes a gas storage reservoir and a blind head structure, and the blind head structure includes a main pipeline, a first branch pipeline and a second branch pipeline. Based on this, gas can be injected into the gas storage reservoir of the gas storage system through the main pipeline, and the gas enters the gas storage reservoir through the first branch pipeline and the second branch pipeline. During the deflation of the gas storage system, the gas can enter the main pipeline through the first branch pipeline and the second branch pipeline and then be discharged. When the gas storage system is under pressure, through the annular gas storage reservoir combined with the first branch pipeline and the second branch pipeline, even if the internal pressure of the gas storage reservoir changes continuously, the final pressure will be distributed in the first branch pipeline and the second branch pipeline. The mutual conduction of the first branch pipeline and the second branch pipeline can balance the pressure, thereby ensuring the sealing performance of the blind head structure, reducing the probability of leakage, ensuring the normal operation of the gas storage system, and reducing the probability of environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0034] Figure 1 A schematic structural diagram of a gas storage system at a first angle at a bulkhead structure of an embodiment provided in the present application;

[0035] Figure 2 A schematic structural diagram of a gas storage system at a second angle of a bulkhead structure according to an embodiment of the present application;

[0036] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0037] Figure 4 A schematic cross-sectional view of a lining of a bulkhead structure of a gas storage system according to an embodiment of the present application;

[0038] Figure 5 A schematic elevation diagram of the steel lining at the end of a bulkhead structure of a gas storage system according to an embodiment of the present application.

[0039] in, Figures 1 to 5 The corresponding relationship between the reference numerals and the component names is as follows:

[0040] 110 gas storage, 120 bulkhead structure, 130 reinforced steel lining, 140 sealing layer, 150 sealing strip, 160 reinforcement ring;

[0041] 111 lining steel plate;

[0042] 121 main pipeline, 122 first branch pipeline, 123 second branch pipeline, 124 concrete layer, 125 end plate, 126 deformation joint, 127 transition part. DETAILED DESCRIPTION

[0043] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0044] like Figures 1 to 5As shown, an embodiment of the present application proposes a gas storage system, including: a gas storage reservoir 110, which is annular; a bulkhead structure 120, which is connected to the gas storage reservoir 110; wherein the bulkhead structure 120 includes a main pipeline 121, a first branch pipeline 122 and a second branch pipeline 123, the main pipeline 121 is connected to the first branch pipeline 122 and the second branch pipeline 123, the first branch pipeline 122 and the second branch pipeline 123 are located on both sides of the main pipeline 121, and the first branch pipeline 122 and the second branch pipeline 123 are connected to the gas storage reservoir 110.

[0045] The gas storage system provided in the embodiment of the present application includes a gas storage reservoir 110 and a blind head structure 120, and the blind head structure 120 includes a main pipeline 121, a first branch pipeline 122, and a second branch pipeline 123. Based on this, gas can be injected into the gas storage reservoir 110 of the gas storage system through the main pipeline 121, and the gas enters the gas storage reservoir 110 through the first branch pipeline 122 and the second branch pipeline 123. During the deflation process of the gas storage system, the gas can enter the main pipeline 121 through the first branch pipeline 122 and the second branch pipeline and then be discharged. When the gas storage system is under pressure, the annular gas storage reservoir 110 is combined with the first branch pipeline 122 and the second branch pipeline 123. Even if the internal pressure of the gas storage reservoir 110 changes continuously, the final pressure will be distributed in the first branch pipeline 122 and the second branch pipeline 123. The mutual conduction of the first branch pipeline 122 and the second branch pipeline 123 can balance the pressure, ensure the sealing performance of the blind head structure 120, reduce the probability of leakage, ensure the normal operation of the gas storage system, and reduce the probability of environmental pollution.

[0046] It can be understood that the closing part of the bulkhead structure 120 is usually the part with the highest safety requirements in the underground gas storage chamber. Through the arrangement of the main pipeline 121, the first branch pipeline 122 and the second branch pipeline 123, self-balancing of pressure can be achieved to ensure that the pressure at both ends of the bulkhead is in a balanced state in real time.

[0047] It is understandable that the bulkhead structure 120 of the gas storage system provided in the embodiment of the present application is designed with a first branch pipe 122 and a second branch pipe 123, and the first branch pipe 122 and the second branch pipe 123 are subjected to internal pressure in completely opposite directions, which can ensure that the bulkhead structure 120 is in a self-balanced state. In this way, the influence of pressure changes on the sealing effect of the bulkhead structure 120 is reduced.

[0048] It can be understood that when the gas storage system is not in operation, the main pipeline 121, the first branch pipeline 122 and the second branch pipeline 123 can be used as maintenance passages.

[0049] like Figures 1 to 5As shown, in a feasible embodiment, the bulkhead structure 120 also includes: a concrete layer 124, in which the main pipeline 121, the first branch pipeline 122 and the second branch pipeline 123 are formed; an end plate 125, located at the connection between the bulkhead structure 120 and the gas storage reservoir 110, to limit the concrete layer 124; wherein the concrete layer 124 extends to the output end of the gas storage system, and a deformation joint is left between the concrete layer 124 and the output end of the gas storage system.

[0050] In this technical solution, a style of a bulkhead structure 120 is further provided. The bulkhead structure 120 includes a concrete layer 124 and an end plate 125. The setting of the concrete layer 124 can improve the pressure-bearing performance of the bulkhead structure 120. The setting of the end plate 125 can limit the concrete layer 124, which is convenient for the preparation of the concrete layer 124 and improves the mechanical strength of the bulkhead structure 120. The concrete layer 124 extends to the output end of the gas storage system and a deformation joint is left between the concrete layer 124 and the output end of the gas storage system, ensuring that the bulkhead structure 120 can operate safely even if the concrete layer 124 is deformed.

[0051] like Figures 1 to 5 As shown, in a feasible implementation manner, the gas storage reservoir 110 includes an inner lining steel plate 111 , and the inner lining steel plate 111 encloses the gas storage reservoir 110 .

[0052] In this technical solution, the structure of a gas storage reservoir 110 is further provided. The gas storage reservoir 110 may include an inner lining steel plate 111. The setting of the inner lining steel plate 111 may improve the pressure bearing capacity of the gas storage reservoir 110. The gas storage reservoir 110 may be buried deep underground. The inner lining steel plate 111 is used to contact with the underground geological structure, and may jointly regulate the gas storage pressure with the underground geological structure.

[0053] In a feasible implementation, at the connection between the bulkhead structure 120 and the gas storage reservoir 110 , the lining steel plate 111 is formed with a bending portion, and the bending portion is buried in the concrete layer 124 .

[0054] In this technical solution, a connection method between the bulkhead structure 120 and the gas storage reservoir 110 is further provided. The inner lining steel plate 111 is formed with a bending portion, and the bending portion is buried in the concrete layer 124. Such a setting can make the connection between the bulkhead structure 120 and the gas storage reservoir 110 more reliable, thereby further improving the sealing effect.

[0055] like Figures 1 to 5 As shown, in a feasible implementation manner, the gas storage system further includes: a reinforced steel liner 130, the reinforced steel liner 130 is connected to the inner lining steel plate 111 and covers the bending portion.

[0056] In this technical solution, the gas storage system may further include a reinforced steel lining 130. By connecting the reinforced steel lining 130 to the inner lining steel plate 111 and covering the bending portion, the mechanical strength of the gas storage reservoir 110 at the connection with the bulkhead structure 120 can be improved, thereby better connecting the gas storage reservoir 110 with the bulkhead structure 120 and improving the sealing effect.

[0057] like Figures 1 to 5 As shown, in a feasible implementation, the gas storage system further includes: a sealing layer 140 , which is disposed at the free end of the concrete layer 124 ; and a sealing strip 150 , which is filled between the lining steel plate 111 and the concrete layer 124 .

[0058] In this technical solution, the gas storage system may further include a sealing layer 140 and a sealing strip 150. By setting the sealing layer 140 at the free end of the concrete layer 124, the probability of gas invading the concrete layer 124 can be reduced, thereby further improving the air tightness. By setting the sealing strip 150 between the lining steel plate 111 and the concrete layer 124, the probability of gas invading the bulkhead structure 120 through the gap between the lining steel plate 111 and the concrete layer 124 can be reduced, thereby further ensuring the air tightness.

[0059] like Figures 1 to 5 As shown, in a feasible implementation, the gas storage system further includes: a reinforcement ring 160, which is connected to the lining steel plate 111 and is located in the concrete layer 124. This arrangement can reduce the probability of deformation of the lining steel plate 111.

[0060] In a feasible implementation, a transition portion 127 is formed at the connection between the bulkhead structure 120 and the gas storage reservoir 110, the thickness of the transition portion 127 is greater than the thickness of the gas storage reservoir 110, and the thickness gradually decreases in the direction from the bulkhead structure 120 to the gas storage reservoir 110. This configuration is made in consideration of the fact that more pressure of the gas storage system will be distributed at the bulkhead structure 120, and a transition portion 127 is formed at the connection between the bulkhead structure 120 and the gas storage reservoir 110, the thickness of the transition portion 127 is greater than the thickness of the gas storage reservoir 110, and the pressure bearing capacity of the bulkhead structure 120 can be improved.

[0061] In a feasible embodiment, the gas storage system also includes: a main pressure sensor, which is arranged in the main pipeline 121; a first branch pressure sensor, which is arranged in the first branch pipeline 122; and a second branch pressure sensor, which is arranged in the second branch pipeline 123.

[0062] In this technical solution, the gas storage system may also include a main pressure sensor, a first branch pressure sensor, and a second branch pressure sensor. Based on this, through the setting of the main pressure sensor, the first branch pressure sensor, and the second branch pressure sensor, the pressures of the main pipeline 121, the first branch pipeline 122, and the second branch pipeline 123 can be detected respectively, so as to facilitate the monitoring of the operating status of the bulkhead structure 120.

[0063] In a feasible embodiment, the gas storage system also includes: a processor, the processor is connected to the main pressure sensor, the first branch pressure sensor and the second branch pressure sensor; the processor is used to: the difference between the detection results of the main pressure sensor and the first branch pressure sensor is a first difference; the difference between the detection results of the main pressure sensor and the second branch pressure sensor is a second difference; when the difference between the first difference and the second difference is greater than the warning threshold, a warning message is issued.

[0064] In this technical solution, the gas storage system may also include a processor, which is used to: the difference between the detection results of the main pressure sensor and the first branch pressure sensor is a first difference; the difference between the detection results of the main pressure sensor and the second branch pressure sensor is a second difference; when the difference between the first difference and the second difference is greater than the warning threshold, issue a warning message. When the gas storage system is operating normally, the pressure of the first branch pipeline 122 and the second branch pipeline 123 should be balanced. When the difference between the first difference and the second difference is greater than the warning threshold, it indicates that the pressure of the first branch pipeline 122 and the second branch pipeline 123 is unbalanced. In this case, a warning message can be issued to prompt the operator to check.

[0065] Example

[0066] The present embodiment proposes a gas storage system, including: a gas storage reservoir 110, which is annular; a bulkhead structure 120, which is connected to the gas storage reservoir 110; wherein the bulkhead structure 120 includes a main pipeline 121, a first branch pipeline 122 and a second branch pipeline 123, the main pipeline 121 is connected to the first branch pipeline 122 and the second branch pipeline 123, the first branch pipeline 122 and the second branch pipeline 123 are located on both sides of the main pipeline 121, and the first branch pipeline 122 and the second branch pipeline 123 are connected to the gas storage reservoir 110.

[0067] In the gas storage system provided in the embodiment of the present application, the bulkhead structure 120 is a solid reinforced concrete-concrete structure. The outer secondary lining of the bulkhead structure 120 is made of reinforced concrete (structural reinforcement), which is molded by a trolley. The inner side of the reinforced concrete lining is filled with a concrete layer 124 made of micro-expansive concrete, and the end pressure is borne by the compressive resistance of the concrete.

[0068] A Q420 steel plate is set at the end of the bulkhead structure 120 to ensure air tightness and serve as a carrier for closing the steel lining of the main chamber. Opening, connection Steel pipe 6 is led to the cross channel to serve as the main pipeline 121, the first branch pipeline 122 and the second branch pipeline 123.

[0069] The interior of the bulkhead structure 120 is filled with micro-expansion concrete (including the opening of the transverse channel). The total length of the plain concrete plugging is 20m, which can be dynamically fine-tuned according to the error of the rigid lining splicing receiving ports at both ends.

[0070] The bulkhead structure 120 has a reinforced steel lining 130, an end steel plate, and a ribbed steel plate made of Q460 steel with a thickness of 30 mm; the reinforcement ring 160 is made of Q460 steel. The chemical composition and mechanical properties of the steel should meet the requirements of relevant specifications.

[0071] The corrugated steel lining of the bulkhead structure 120 is connected to the end plate 125 by fillet welds at the end steel plate position, and the welds should be continuous and full.

[0072] The 120-degree sealing steel plate of the blind head structure is sealed with C35 micro-expansive concrete toward the main chamber. A sealing rubber strip is set at the junction of the sealing body and the steel village. Quick-setting rubber asphalt coating is sprayed on the surface of the sealing body to enhance the sealing performance.

[0073] In this embodiment, the lining of the bulkhead structure 120 gradually thickens: the thickness of the secondary lining gradually transitions from 0.50m to 1.50m in the bulkhead part, gradually enhancing the restraint capacity of the lining itself; a reinforcing steel lining 130 and a transition reinforcing ring 160 are set: a layer of 30mm thick Q460 reinforcing steel plate is set on the outside of the transition section corrugated steel lining, and the steel plate is welded to the end plugging steel plate of the bulkhead structure 120. Seven groups of reinforcing rings 160 are set on the periphery of the reinforcing steel plate, and the reinforcing rings 160 also gradually transition from sparse to dense and from narrow to wide; a 3.0m thick C35 micro-expansive concrete plugging is set at the end of the transition section of the bulkhead structure 120: rivets are set inside the flexible steel lining at the end of the transition section of the bulkhead structure 120, and a 3.0m thick C35 micro-expansive concrete is set in the chamber, which is fastened to the flexible steel lining to limit the expansion of the end flexible steel lining. The concrete surface is sprayed with 10mm thick non-curing rubber asphalt, and a 5cm×5cm sealing rubber caulking is set.

[0074] 30mm thick end capping steel plate at the transition section end of the bulkhead structure 120: A 30mm thick Q460 steel plate is set at the end of the bulkhead structure 120, and the steel plate is reliably connected with the reinforced steel lining 130 and the flexible steel lining to form a closed space in the chamber. The reinforced steel lining 130 and the end plate 125 are welded on one side with a groove, and the flexible steel lining and the end plate 125 are welded with a fillet weld.

[0075] The diameter of the end steel plate of the bulkhead structure 120 is 20m, and a 40b steel support is set at the rear to enhance the rigidity of the end plate 125 and serve as the end mold for the bulkhead C35 concrete filling; 3m radial grouting is set around the transition section of the bulkhead structure 120: in order to increase the overall deformation resistance of the surrounding rock, 3m radial grouting is set around the transition section within 15m. The grouting holes are arranged according to the slurry diffusion radius of 2m, and the grouting holes are arranged in a plum blossom shape, with an annular spacing of about 1.8m and a longitudinal spacing of 2.6m. The hole diameter is 75mm, and 850mm (t=3.5) steel flower pipes are used to inject cement slurry.

[0076] In the initial support, the cement mortar leveling thickness is set to 10mm, and 240mm thick shotcrete is used for filling. The grid spacing of the steel mesh is 200×200mm, the anchor rod setting position is full ring, the length is 3.5m, the spacing is 1.2×1.0m, and the steel frame specification and spacing are 1.0; shotcrete: C30 (8h strength is not less than 2MPa, 24h strength is not less than 10MPa); secondary lining: C35 concrete; shotcrete adopts primary spraying and re-spraying, first apply a layer of mesh sprayed concrete, and then re-spray the sprayed concrete after the anchor rod is completed; the anchor rod anchoring section should be set within the thickness range of the shotcrete, and it is strictly forbidden to have protrusions on the surface of the shotcrete.

[0077] The reinforced steel lining 130, end steel plate and ribbed steel plate of the bulkhead structure 120 are made of Q460 steel plate with a thickness of 30mm, the steel frame is made of HM390x300x16x10, and the connecting steel plate is made of Q355 steel plate with a thickness of 10mm and 22mm. The chemical composition and mechanical properties of the steel should meet the requirements of relevant specifications; the bulkhead end steel village can be welded in blocks, and the weld is consistent with the axis of the steel beam behind the village plate. The position of the end plate 125 weld can be appropriately adjusted on site according to the actual transportation and installation conditions, but the steel beam should be adjusted with the adjustment of the weld position.

[0078] This embodiment has at least the following beneficial effects:

[0079] The pressure self-balancing bulkhead structure 120 plays a key role in pressure regulation and balancing. When the pressure in the gas storage 110 changes, the self-balancing bulkhead structure 120 can automatically adapt and maintain a relatively stable pressure state, ensuring the pressure balance of the entire system, avoiding the situation of excessively high or low local pressure, and ensuring the safety and reliability of system operation.

[0080] Secondly, this arrangement can effectively reduce the impact and influence of pressure fluctuations on the gas storage 110 and the cross channel structure. Through the buffering effect of the bulkhead, the risk of structural damage caused by sudden pressure changes is reduced, the service life of related facilities is extended, and the cost of maintenance and replacement is reduced.

[0081] Furthermore, it helps to improve the sealing of the system, prevents the gas from flowing freely between the gas storage reservoir 110 and the cross channel, avoids the problem of gas leakage, thereby ensuring the quality and efficiency of gas storage and enhancing the environmental performance of the system.

[0082] At the same time, the self-balancing bulkhead structure 120 can also play a role of isolation and protection. The gas storage reservoir 110 is isolated from the transverse channel to a certain extent, reducing the interference of external factors on the gas storage reservoir 110, making the environment in the gas storage reservoir 110 more stable, which is conducive to the storage and management of gas.

[0083] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0084] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0085] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0086] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas storage system, characterized in that: include: A gas storage reservoir, wherein the gas storage reservoir is annular; A bulkhead structure, the bulkhead structure being connected to the gas storage reservoir; Among them, the bulkhead structure includes a main pipeline, a first branch pipeline and a second branch pipeline, the main pipeline is connected to the first branch pipeline and the second branch pipeline, the first branch pipeline and the second branch pipeline are located on both sides of the main pipeline, and the first branch pipeline and the second branch pipeline are connected to the gas storage reservoir.

2. The gas storage system according to claim 1, characterized in that: The bulkhead structure also includes: a concrete layer, wherein the main pipe, the first branch pipe and the second branch pipe are formed in the concrete layer; An end plate, located at the connection between the bulkhead structure and the gas storage reservoir, to limit the position of the concrete layer; Wherein, the concrete layer extends to the output end of the gas storage system, and a deformation joint is left between the concrete layer and the output end of the gas storage system.

3. The gas storage system according to claim 2, characterized in that: The gas storage reservoir comprises an inner lining steel plate, and the inner lining steel plate encloses the gas storage reservoir.

4. The gas storage system according to claim 3, characterized in that: At the connection between the bulkhead structure and the gas storage reservoir, the lining steel plate is formed with a bending portion, and the bending portion is buried in the concrete layer.

5. The gas storage system according to claim 4, characterized in that: Also includes: A reinforcing steel lining is connected to the inner lining steel plate and covers the bending portion.

6. The gas storage system according to claim 4, characterized in that: Also includes: A sealing layer, the sealing layer being arranged at a free end of the concrete layer; A sealing strip is filled between the lining steel plate and the concrete layer.

7. The gas storage system according to claim 6, characterized in that: Also includes: A reinforcement ring is connected to the inner lining steel plate and is located in the concrete layer.

8. The gas storage system according to claim 1, characterized in that: A transition portion is formed at the connection between the bulkhead structure and the gas storage reservoir. The thickness of the transition portion is greater than the thickness of the gas storage reservoir, and the thickness gradually decreases in the direction from the bulkhead structure to the gas storage reservoir.

9. The gas storage system according to claim 1, characterized in that: Also includes: A main pressure sensor, the main pressure sensor is arranged in the main pipeline; a first branch pressure sensor, wherein the first branch pressure sensor is disposed in the first branch pipeline; A second branch pressure sensor is disposed in the second branch pipeline.

10. The gas storage system according to claim 9, characterized in that: Also includes: A processor, the processor is connected to the main pressure sensor, the first branch pressure sensor and the second branch pressure sensor; the processor is used for: The difference between the detection results of the main pressure sensor and the first branch pressure sensor is a first difference; The difference between the detection results of the main pressure sensor and the second branch pressure sensor is a second difference; When the difference between the first difference and the second difference is greater than a warning threshold, a warning message is issued.

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