A gas storage cavern sealing structure laying system, laying method and sealing assembly

Abstract

The application discloses a kind of gas storage cavern sealing structure laying system, laying method and sealing assembly, system includes travelling main body;Inflating equipment, is fixed on travelling main body, to make sealing structure inflation;Conveying device, it is set on travelling main body, and located inflating equipment side;Spraying device, it is oppositely set with travelling main body, and is connected with conveying device, spraying device is used to spray adhesive medium to sealing structure;Piercing assembly, for annular structure, is connected to the end of travelling main body close to spraying device, for puncturing sealing structure;Pressing device, it is placed on travelling main body, and located inflating equipment and conveying device above, for after puncturing sealing structure pressing.It avoids the problem of uneven spraying thickness caused by manual operation difference, uniform distribution of adhesive medium, so that the sealing layer has consistent strength and sealing performance at different positions, improves the sealing quality, effectively prevents gas leakage, and guarantees the gas tightness of gas storage cavern.

Description

Technical Field

[0001] This invention belongs to the field of cavern sealing technology, specifically relating to a gas storage cavern sealing structure laying system, laying method and sealing components. Background Technology

[0002] In today's energy sector, with increasing global emphasis on environmental protection and sustainable development, the proportion of renewable energy generation in the energy structure is gradually increasing. Renewable energy sources such as wind and solar power have significant advantages in being clean and renewable; however, their power generation process is constrained by natural conditions, exhibiting significant volatility. This volatility is sharply contradictory to the relative stability of electricity demand, leading to a series of problems, among which the phenomenon of wind and solar curtailment is particularly prominent. Curtailment not only causes enormous energy waste but also hinders the further promotion and application of renewable energy.

[0003] To effectively alleviate this contradiction, compressed air energy storage technology has emerged and gradually become a key technology for improving power grid stability. This technology stores excess electricity as compressed air during periods of surplus supply and releases it to drive generators during peak demand periods, thus achieving energy storage and regulation to balance power supply and demand. In compressed air energy storage systems, the high-pressure air storage chamber, as the core component, undertakes the crucial task of storing compressed air. It needs to maintain airtightness over long periods under complex conditions such as high internal pressure, alternating loads, and temperature changes to ensure the safe and stable operation of the system. However, this requirement presents new challenges to the design of the air storage chamber's sealing layer.

[0004] In traditional gas storage solutions, steel plates are often chosen as sealing materials due to their excellent pressure resistance and sealing properties. However, during the actual construction and installation of underground gas storage facilities, steel plates have revealed numerous problems. Firstly, steel plates are prone to weld cracking and fatigue failure during welding. This is because the complex geological conditions of underground gas storage facilities and the stress changes during long-term operation make the weld seams weak points. Once the weld cracks or fails, it directly leads to a significant decrease in sealing performance, severely affecting the compressed air storage effect. Secondly, damaged steel plates cannot be quickly replaced. The installation and replacement process of steel plates is complex, requiring significant manpower and time. This not only increases system maintenance costs but also seriously affects system reliability and maintenance efficiency, reducing the overall operational benefits of the compressed air energy storage system.

[0005] Recent research has shown that polymer materials are feasible as sealing layers. Common polymer sealing materials include polyurethane, rubber, fiberglass, and asphalt. Among them, butyl rubber, neoprene rubber, and natural rubber exhibit superior airtightness and ductility, making them better suited to the complex operating conditions of high-pressure gas storage chambers. However, the installation of polymer materials also faces significant challenges. In many engineering practices, manual spraying is often used for installation, but this method has significant limitations. Due to variations in operator skill levels and habits, uneven spray thickness is easily achieved. This uneven thickness leads to differences in the strength and sealing performance of the sealing layer in different areas, significantly compromising the sealing quality and failing to meet the stringent sealing requirements of high-pressure gas storage chambers. Summary of the Invention

[0006] The purpose of this invention is to provide a gas storage cavern sealing structure laying system, laying method and sealing components to solve the technical defects in the prior art, where uneven spraying thickness is easily caused by different skill levels and operating habits of operators. Uneven spraying thickness leads to differences in the strength and sealing performance of the sealing layer in different parts, resulting in a significant reduction in sealing quality and failing to meet the strict sealing performance requirements of high-pressure gas storage caverns.

[0007] To achieve the above objectives, the present invention employs the following technical solution: Firstly, a gas storage cavity sealing structure laying system is provided, comprising: Main body of the procession; An inflation device is fixed to the traveling body to inflate the sealing structure; A conveying device is mounted on the traveling body and located on one side of the inflation device; A spraying device is disposed opposite to the traveling body and connected to the conveying device. The spraying device is used to spray an adhesive medium onto the sealing structure. The piercing component is a ring-shaped structure connected to one end of the traveling body near the spraying device, used to pierce the sealing structure. The pressing device is placed on the traveling body and located above the inflation device and the conveying device, and is used to press the punctured sealing structure.

[0008] Furthermore, the conveying device includes: An adhesive supply unit is equipped with an upper adhesive supply hose and a lower adhesive supply hose. The spraying device includes: The tube body has a movable unit connected to its end via a spraying bracket. The movable unit is used to drive the tube body to move back and forth. Two sets of nozzles are arranged circumferentially along the axial direction of the pipe body. One set of nozzles is connected to the upper hose for supplying adhesive, and the other set of nozzles is connected to the lower hose for supplying adhesive.

[0009] Furthermore, the spraying bracket includes: Multiple support rods, one end of which is welded to the moving unit, and the other end is arranged circumferentially along the axial direction of the tube body.

[0010] Furthermore, the outer wall of the tube is a hollow structure, with one end of the two sets of nozzles located on the outside of the tube and the other end located inside the hollow structure; The ends of the upper and lower adhesive supply hoses extend into the hollow structure and connect to two sets of nozzles.

[0011] Furthermore, the pressing device includes: The lifting units are located at opposite ends of the top of the main body and are arranged at intervals along the length of the main body. The pressing plate has an arc-shaped structure and is installed on the top of multiple lifting units.

[0012] Furthermore, the piercing component includes: The telescopic unit is located at one end of the traveling body near the spraying device; A drive unit is installed at the end of the telescopic unit, and a support frame is installed on the drive end of the drive unit. The support frame is a ring structure. Multiple blades are arranged along the circumference of the support frame axis.

[0013] Furthermore, the traveling entity includes: The frame body has auxiliary wheels installed around its bottom. The construction platform is installed on the top of the vehicle frame. The inflation device, conveying device, piercing component and pressing device are all set on the construction platform. The bottom of the construction platform is fixed with support legs, and the support legs are equipped with trolley main wheels.

[0014] Secondly, a method for laying a sealing structure for a gas storage cavern is provided. The method employs the gas storage cavern sealing structure laying system described above, and includes: While driving the traveling body to the preset position, the sealing structure is positioned between the traveling body and the spraying device; Inflate the sealing structure with an inflation device to make it expand and press against the cavern wall, while simultaneously spray an adhesive medium onto the sealing structure with a spraying device. After the sealing structure is bonded to the cavern wall, the front end of the sealing structure is cut open using the piercing component, and the traveling body is controlled to move into the cut sealing structure. When the rear end of the sealing structure is cut open, the pressing device presses the part of the sealing structure that is bonded to the cavern. After the pressing, the main body is moved along the length of the cave, multiple sealing structures are laid in sequence, and the multiple sealing structures are heat-fused together.

[0015] Thirdly, a sealing assembly is provided, which is laid using the gas storage cavity sealing structure laying method described above.

[0016] Furthermore, the sealing assembly includes: Lining layer, connecting layer and sealing layer; The lining layer is connected to the sealing layer through the connecting layer; The sealing layer is a bag.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This system integrates inflation equipment, conveying device, spraying device, puncture component, and pressing device into a single moving main body, forming a complete sealing structure laying system. During construction, the moving main body can drive the various components to work together, realizing an integrated operation process from sealing structure expansion, adhesive medium spraying, sealing structure puncture to pressing and fixing. Compared with the traditional manual spraying method, it avoids the problem of uneven spraying thickness caused by differences in manual operation, ensures the uniform distribution of adhesive medium in various parts of the sealing structure, and makes the sealing layer have consistent strength and sealing performance in different positions, greatly improving the sealing quality, effectively preventing gas leakage, and ensuring the airtightness of the gas storage cavern.

[0018] 2. Simultaneous spraying of the sealing structure from multiple directions greatly improves spraying efficiency; moreover, the coordinated work of the two sets of nozzles allows the adhesive medium to more comprehensively cover the surface of the sealing structure, reducing spraying dead angles and further improving spraying quality.

[0019] 3. Because the support rod is set along the circumference of the tube body, the tube body can maintain a stable posture and position. During the spraying process, the tube body will not tilt or shake due to uneven force, thus ensuring that the distance and angle between the nozzle and the sealing structure remain consistent.

[0020] 4. The hollow structure of the outer wall of the pipe provides a relatively closed and uniform distribution space for the adhesive medium. After entering the hollow structure, the adhesive medium can be evenly distributed to each nozzle, avoiding the problem of uneven distribution of adhesive medium caused by differences in the external pipeline layout.

[0021] 5. The pressing plate adopts an arc-shaped structure, which is compatible with the common arc-shaped inner wall shape of gas storage caverns. During the installation of the sealing structure, the arc-shaped pressing plate can better fit the inner wall of the cavern, ensuring that the sealing material is pressed evenly and comprehensively.

[0022] 6. A ring-shaped support frame is installed on the drive end of the drive unit, and multiple blades are arranged around the circumference of the support frame axis, so that the blades can distribute the force evenly during the piercing process and achieve uniform piercing of the sealed structure.

[0023] 7. The chassis body is equipped with auxiliary wheels around the bottom, and the construction platform is fixed with outriggers around the bottom, with main wheels of the trolley on the outriggers. This multi-wheel combination design enhances the mobility of the main body in the complex terrain of the gas storage cavern. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the gas storage cavity sealing structure laying system provided by the present invention; Figure 2 A schematic diagram of the bladder in the sealing structure provided by the present invention; Figure 3 A schematic diagram of the spraying device in the gas storage cavern sealing structure laying system provided by the present invention; Figure 4 A schematic diagram showing the cooperation between the traveling body and the pressing device in the gas storage cavern sealing structure laying system provided by the present invention; Figure 5 A three-dimensional schematic diagram of the spraying device in the gas storage cavern sealing structure laying system provided by the present invention; Figure 6 A schematic diagram of the pressing device in the gas storage cavity sealing structure laying system provided by the present invention; Figure 7 A schematic diagram of the puncture component installation in the gas storage cavity sealing structure laying system provided by the present invention; Figure 8 A schematic diagram of the puncture component assembly in the gas storage cavity sealing structure laying system provided by the present invention; Figure 9 A schematic diagram showing the arrangement of the adhesive supply hose in the pressing device in the gas storage cavern sealing structure laying system provided by the present invention. Figure 10A schematic diagram of the pressing device in the gas storage cavity sealing structure laying system provided by the present invention; Figure 11 A schematic diagram of the first working principle of the gas storage cavity sealing structure laying system provided by the present invention; Figure 12 A schematic diagram of the second working principle in the gas storage cavity sealing structure laying system provided by the present invention; Figure 13 A flowchart of the laying method in the gas storage cavity sealing structure laying system provided by the present invention; The components include: 1. Lining layer; 2. Connecting layer; 3. Bag; 4. Puncture assembly; 401. Telescopic unit; 402. Drive unit; 403. Support frame; 404. Blade; 5. Inflation device; 6. Traveling body; 7. Pressing device; 8. Frame; 9. Conveying device; 10. Spraying device; 11. Moving unit; 12. Joint; 13. Hydraulic control station; 50. Air pump; 51. Valve; 52. Clamping bolt; 8 01. First crossbeam; 802. Second crossbeam; 81. Construction platform; 82. Main wheel of the trolley; 83. Outrigger; 84. Lifting unit; 85. Frame body; 86. Auxiliary wheel of the trolley; 87. Main beam; 88. Longitudinal beam; 89. Inclined support; 90. Upper adhesive supply hose; 91. Adhesive supply unit; 92. Hydraulic pump; 93. Lower adhesive supply hose; 101. Spraying bracket; 102. Nozzle; 103. Pipe body. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0032] To address the technical deficiencies mentioned in the background section, this embodiment provides a gas storage cavern sealing structure laying system, laying method, and sealing components. The invention will be further described in detail below with reference to the accompanying drawings: In a first aspect, embodiments of the present invention provide a gas storage cavity sealing structure laying system, using a bag as an example for illustration, such as... Figures 1-10 As shown, the laying system includes a traveling body 6, on which a piercing component 4, an inflation device 5, a pressing device 7, a conveying device 9, and a spraying device 10 are sequentially mounted. The inflation device 5 is fixed on the traveling body 6 and is used to inflate the interior of the sealing structure to make the sealing structure expand. The conveying device 9 is mounted on the traveling body 6 and located to one side of the inflation device 5. The spraying device 10 is positioned opposite the traveling body 6 and connected to the conveying device 9. The conveying device 9 is used to convey the adhesive medium to the spraying device 10, and the spraying device 10 is used to spray the adhesive medium onto the sealing structure. The piercing component 4 is a ring-shaped structure connected to one end of the traveling body 6 near the spraying device 10 and is used to pierce the sealing structure. The pressing device 7 is placed on the traveling body 6 and located above the inflation device 5 and the conveying device 9. It is used to press the pierced sealing structure so that the pierced sealing structure adheres tightly to the interior wall of the cave, thereby achieving a seal on the interior wall of the cave.

[0033] In the above structural combination, the inflation device 5 can expand the sealing structure to better adapt to the shape and size of the gas storage cavern. Regardless of whether the cavern wall is flat or has a certain degree of undulation, the expanded sealing structure can fit tightly to it. The spraying device 10 is set opposite to the traveling body 6 and connected to the conveying device 9. It can uniformly spray the adhesive medium onto the sealing structure according to the preset path and operating parameters, so that the sealing structure is bonded to the inside of the cavern by the adhesive medium. Compared with the traditional manual spraying method, it avoids the problem of uneven spraying thickness caused by differences in manual operation, ensures the uniform distribution of adhesive medium in all parts of the sealing structure, improves the sealing quality of the cavern, effectively prevents gas leakage from the cavern, and ensures the airtightness of the gas storage cavern.

[0034] The piercing component 4 is a ring-shaped structure connected to one end of the traveling body 6 near the spraying device 10. It can accurately pierce the inflated sealing structure. The pressing device 7 is placed on the traveling body 6 and above the inflation device 5 and the conveying device 9. After piercing the sealing structure, the traveling body 6 moves into the sealing structure and presses the pierced sealing structure with the pressing device 7, so that the sealing structure fits tightly against the cavern wall, further enhancing the sealing effect and ensuring that there is no gap between the sealing structure and the cavern wall, thus improving the reliability of the seal.

[0035] The system integrates the inflation device 5, conveying device 9, spraying device 10, puncture component 4, and pressing device 7 into a single traveling body 6, forming a complete sealing structure laying system. During construction, the traveling body 6 can drive the various components to work together, realizing an integrated operation process from sealing structure expansion, adhesive medium spraying, sealing structure puncture to pressing and fixing. This eliminates the need to frequently switch tools and equipment between different construction stages, reducing construction steps and operation time, and greatly improving construction efficiency.

[0036] like Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the conveying device 9 includes an adhesive supply unit 91, a hydraulic pump 92 is installed on one side of the adhesive supply unit 91, and the adhesive supply unit 91 is connected to an upper adhesive supply hose 90 and a lower adhesive supply hose 93 via the hydraulic pump 92; the spraying device 10 includes a pipe body 103, and a moving unit 11 is connected to the end of the pipe body 103 via a spraying bracket 101. The moving unit 11 is used to drive the pipe body 103 to move back and forth; two sets of nozzles 102 are arranged circumferentially along the axial direction of the pipe body 103, one set of nozzles 102 is connected to the upper adhesive supply hose 90, and the other set of nozzles 102 is connected to the lower adhesive supply hose 93.

[0037] As shown in the figure, the moving unit 11 is a moving trolley, with a support column vertically mounted on the top of the trolley. One end of the spraying bracket 101 is connected to the support column, and the other end is connected to the pipe body 103. It is worth noting that since the spraying bracket 101 is welded to the middle of the support column, the moving unit 11 can stably drive the pipe body 103 to move back and forth. When the sealing structure is inflated, the moving unit 11 moves toward the traveling body 6. During the movement, it drives the pipe body 103 to insert between the sealing structure and the cavity. At this time, the sealing structure is located in the pipe body 103, while the two sets of nozzles 102 on the outside of the pipe body 103 face the inside of the cavity and spray the adhesive medium onto the inner wall of the cavity. Since the two sets of nozzles 102 are distributed all over the outside of the pipe body 103, the adhesive medium sprayed by the nozzles 102 can be evenly distributed on the inner wall of the cavity.

[0038] After the adhesive medium is sprayed, the moving unit 11 moves away from the end of the traveling body 6, causing the tube 103 to move out from between the sealing structure and the inner wall of the cave. At the same time, the expanded outer wall of the sealing structure is bonded to the inner wall of the cave through the adhesive medium. At this time, the traveling body 6 moves towards the sealing structure and punctures the end of the sealing structure close to the traveling body 6 by the shearing force generated by the high-speed rotation of the piercing component 4. After rupture, the gas in the sealing structure is quickly discharged, and the pressing device 7 on the traveling body 6 lowers its height and is located inside the sealing structure during the movement of the traveling body 6. At this time, the height of the pressing device 7 is raised, so that the pressing device... 7. Press the sealing structure part that is bonded to the inner wall of the cave to make it bond more tightly; finally, with the main body 6 still, puncture the rear end of the sealing structure by the piercing component 4, then lower the height of the pressing device 7 and control the main body 6 to move out of the current sealing structure and continue to move forward along the length of the cave, and continue to lay multiple sealing structures at intervals; among them, after two adjacent sealing structures are laid according to the above process, the two adjacent sealing structures are overlapped by hand, and then the hot melt machine is operated to heat melt the overlapping part to fix the two adjacent sealing structures firmly together.

[0039] Furthermore, such as Figure 3 and Figure 5 As shown, the spraying bracket 101 includes multiple support rods. One end of each support rod is welded to the moving unit 11, and the other end is circumferentially arranged along the axial direction of the tube body 103, ensuring sufficient connection strength between the support rods and the moving unit 11. During the spraying process, the spraying device 10 is affected by factors such as the reaction force of the adhesive medium and vibration during movement. The robust welded connection can effectively resist these external forces, preventing loosening or separation between the spraying bracket 101 and the moving unit 11, and ensuring the stable operation of the spraying device 10.

[0040] Furthermore, since the support rod is arranged circumferentially along the axial direction of the tube 103, the tube 103 can maintain a stable posture and position. During the spraying process, the tube 103 will not tilt or shake due to uneven force, thereby ensuring that the distance and angle between the nozzle 102 and the sealing structure remain consistent. This allows the adhesive medium to be sprayed evenly on the inner wall of the cavity, avoiding the problem of uneven spraying thickness caused by changes in spraying distance and angle, improving the spraying quality, and ensuring the sealing performance of the sealing structure.

[0041] In this embodiment, the outer wall of the tube body 103 is a hollow structure. One end of each of the two sets of nozzles 102 is located outside the tube body 103, and the other end is located inside the hollow structure. The ends of the upper adhesive supply hose 90 and the lower adhesive supply hose 93 extend into the hollow structure and connect with the two sets of nozzles 102. The fact that the ends of the upper adhesive supply hose 90 and the lower adhesive supply hose 93 extend into the hollow structure of the tube body 103 and connect with the two sets of nozzles 102 allows the adhesive medium to directly enter the tube body 103 from the hoses and then be distributed to the corresponding nozzles 102. Compared to other external connection methods, this reduces bends and obstructions during the delivery process, lowers the pressure loss of the adhesive medium during delivery, and ensures that the adhesive medium reaches the nozzles with stable pressure and flow rate, thus guaranteeing the coating effect.

[0042] As shown in the figure, the ends of the upper adhesive supply hose 90 and the lower adhesive supply hose 93 extend from the end of the pipe body 103 near the traveling body 6. That is, after the pipe body 103 is inserted between the sealing structure and the inner wall of the cavity, the ends of the upper adhesive supply hose 90 and the lower adhesive supply hose 93 are manually fixed to the hollow structure of the pipe body 103. Simultaneously, for ease of installation, two connecting pipes are installed on the end face of the pipe body 103 away from the moving unit 11. The two connecting pipes are located above and below the pipe body 103, respectively. The upper connecting pipe connects to the upper adhesive supply hose 90, and the lower connecting pipe connects to the lower adhesive supply hose 93. Furthermore, in order to… To avoid the inability to achieve synchronous spraying of the cavity wall due to the influence of adhesive medium flow during the spraying process, two partition plates are added to the hollow structure of the outer wall of the pipe 103. The two partition plates are symmetrically arranged, dividing the hollow structure into two arc-shaped spaces. The upper adhesive supply hose 90 is connected to the upper arc-shaped space through the upper connecting pipe, and the lower adhesive supply hose 93 is connected to the lower arc-shaped space through the lower connecting pipe. This ensures that the adhesive medium is evenly distributed to each nozzle 102 inside the pipe 103, avoiding the problem of uneven distribution of adhesive medium due to distance differences. This allows each group of nozzles 102 to achieve synchronous spraying, and the amount of adhesive medium sprayed is basically the same, ensuring the uniformity of the spraying.

[0043] In terms of construction, the hollow structure of the pipe body 103 plays a certain protective role in the transportation and distribution of the adhesive medium, reducing the impact of external environmental factors (such as dust, debris, etc.) on the adhesive medium, and preventing external debris from entering the adhesive medium transportation pipeline, which could lead to nozzle 102 blockage or a decrease in spraying quality. In addition, it can also reduce the impact of external temperature, humidity and other factors on the performance of the adhesive medium, ensuring that the adhesive medium maintains stable performance during transportation and spraying.

[0044] Furthermore, in this solution, the pressing device 7 includes lifting units 84, which are located at opposite ends of the top of the traveling body 6 and are arranged sequentially at intervals along the length of the traveling body 6; the pressing plate is an arc-shaped structure and is installed on the top of multiple lifting units 84, and the adhesive supply hose 90 passes through the pressing plate and is connected to the upper connecting pipe.

[0045] The pressure plate adopts an arc-shaped structure, which is compatible with the common arc-shaped inner wall shape of gas storage caverns. During the installation of the sealing structure, the arc-shaped pressure plate can better fit the inner wall of the cavern, ensuring uniform and comprehensive pressure on the sealing material. For example, when dealing with circular or near-circular caverns, the arc-shaped pressure plate can fit tightly against the cavern wall, avoiding problems such as incomplete pressure or local omissions caused by the mismatch between the pressure plate shape and the cavern wall, thereby improving the quality of the sealing structure.

[0046] Multiple lifting units 84 jointly support the pressing plate, forming a multi-point support structure, which increases the stability of the pressing device 7 and reduces shaking or tilting caused by uneven force during pressing.

[0047] Meanwhile, the use of the pressing device 7 can reduce the need for manual pressing of the sealing material, thus reducing potential safety risks during manual operation.

[0048] Specifically, the lifting unit 84 is preferably a hydraulic cylinder. A hydraulic cylinder can generate significant thrust and pull. During construction, the load on the equipment may change, and the hydraulic cylinder can automatically adjust its output force according to these changes, maintaining stable lifting performance. Furthermore, the hydraulic cylinder is filled with hydraulic oil, which has excellent buffering and shock absorption properties. During equipment lifting, when encountering external interference or sudden load changes, the hydraulic oil can absorb and disperse impact forces, reducing equipment vibration and swaying, making the lifting process smoother. For example, in cases where the cavern floor is uneven, the hydraulic cylinder can effectively buffer the impact of ground bumps on equipment lifting, ensuring stable operation of the equipment.

[0049] In practice, the piercing assembly 4 includes a telescopic unit 401, located at one end of the traveling body 6 near the spraying device 10; a drive unit 402, installed at the end of the telescopic unit 401, with a support frame 403 mounted on the drive end of the drive unit 402. The support frame 403 has a ring-shaped structure. Multiple blades 404 are arranged circumferentially along the axis of the support frame 403. The telescopic unit 401 uses a hydraulic telescopic rod, and the drive unit 402 uses a motor. When piercing the sealing structure, the control controller controls the hydraulic telescopic rod to drive the motor, moving the support frame 403 forward. When the blades 404 on the support frame 403 abut against the outer front end of the sealing structure, the control controller starts the motor, and the high-speed rotational force generated by the electrical system drives the blades 404 to cut through the sealing structure.

[0050] The main body 6 includes a frame 8, which includes a frame body 85. A trolley auxiliary wheels 86 are installed around the bottom of the frame body 85. A construction platform 81 is installed on the top of the frame body 85. The inflation device 5, the conveying device 9, the piercing component 4, and the pressing device 7 are all installed on the top of the construction platform 81. Support legs 83 are fixed around the bottom of the construction platform 81, and trolley main wheels 82 are installed on the support legs 83.

[0051] The ground of the gas storage cavern may be uneven or contain obstacles. The multi-wheel design enhances the mobility of the main vehicle 6 in the complex terrain of the gas storage cavern. The multi-wheel structure distributes pressure, making it easier for the main vehicle 6 to overcome obstacles and adapt to different ground conditions, thus improving the equipment's maneuverability on the construction site. The trolley auxiliary wheels 86 provide auxiliary support and guidance, helping the main vehicle 6 maintain a stable direction during movement. The trolley main wheels 82 bear the main load-bearing and driving functions, ensuring the main vehicle can move forward and backward smoothly. The two work together to make the main vehicle 6 more flexible and efficient during movement.

[0052] During implementation, the construction platform 81 is composed of multiple first crossbeams 801, second crossbeams 802, main beams 87, longitudinal beams 88, and inclined supports 89 working together; among them, such as Figure 4 As shown, the second crossbeam 802 is the bottom beam of the frame body 85; the main beam 87 is arranged in three layers in the transverse direction, and each layer of main beam 87 is connected by multiple longitudinal beams 88. A diagonal bracket 89 is installed on each longitudinal beam 88, and the ends of the three layers of main beam 87 are connected by the first crossbeam 801.

[0053] The inflation device 5 includes an air pump 50, a valve 51, and a clamping bolt 52. The air pump 50 has a rectangular frame installed at its inflation port, and the clamping bolt 52 is movably connected between the top and bottom of the rectangular frame. When the inflation port of the sealing structure is located inside the rectangular frame, the inflation port of the sealing structure and the inflation port of the air pump 50 are pressed together by the clamping bolt 52, and then the air pump 50 is started to inflate the sealing structure.

[0054] The main body 6 of the laying system is also equipped with a control panel. The control panel is used to preset the operating parameters of each component. The controller is connected to the control panel, and the operator can control each component by operating the controller.

[0055] Secondly, embodiments of the present invention provide a method for laying a sealing structure for a gas storage cavern, wherein the method employs the gas storage cavern sealing structure laying system described above, such as... Figure 13 As shown, it includes: S101. While driving the traveling body to a preset position, the sealing structure is positioned between the traveling body and the spraying device 10. For example, the sealing structure includes a lining layer 1, a connecting layer 2, and a bag 3. (Refer to...) Figures 1-8 First, a lining layer 1 is laid on the inner wall of the cavern. Then, the construction workers operate the traveling body 6 to move to a preset position, which is the opening of the inner wall cavern to be sealed. At this time, the traveling body 6 and the moving unit 11 are positioned relative to each other. Next, the bag 3 (such as...) is placed... Figure 2 (As shown) Move to the space between the traveling body 6 and the moving unit 11.

[0056] S102. Inflate the sealing structure with an inflation device so that the sealing structure expands and abuts against the cavern wall. At the same time, spray adhesive medium onto the sealing structure with a spraying device 10. For example, connect the inflation port of the bag 3 to the inflation pump 50 and fasten the inflation port of the bag 3 to the rectangular frame with a clamping bolt 52. At this time, the control controller turns on the inflation device 5 and adjusts the air volume through the valve 51, and the bag 3 is inflated. During the inflation of the bag 3, the control moving unit 11 moves toward the traveling body 6 so that the tube 103 at the end of the moving unit 11 covers the bag 3, and the outer wall of the tube 103 is located between the outer wall of the bag 3 and the lining layer 1. Then start the conveying device 9 and the spraying device 10. The conveying device 9 delivers the adhesive medium to the hollow structure inside the outer wall of the pipe body 103 through the upper adhesive supply hose 90 and the lower adhesive supply hose 93. After being divided by the partition plate, the medium flows to the two sets of nozzles 102 respectively. Since the two sets of nozzles 102 are distributed in the same arc shape, the adhesive medium can be evenly distributed on the lining layer 1 of the annular surface through the spraying of the nozzles 102.

[0057] S103. After the sealing structure is bonded to the cavern wall, the front end of the sealing structure is cut using a piercing component, and the traveling body is controlled to move into the cut sealing structure. When the rear end of the sealing structure is cut, the pressing device 7 presses the part of the sealing structure bonded to the cavern. For example, when the adhesive medium is spread on the lining layer 1, the moving unit 11 is controlled to move toward the end away from the traveling body 6, and the tube 103 is pulled out from between the lining layer 1 and the outer wall of the bag 3. Since the bag 3 is in an inflated state at this time and is fixed by the rectangular frame and the clamping bolt 52, the outer wall of the bag 3 is in contact with the adhesive medium on the lining layer 1 and is bonded to the lining layer 1 by the adhesive medium.

[0058] Next, the piercing component 4 near one end of the bag 3 is operated to extend and retract the telescopic unit 401 forward, causing the blade 404 to contact the surface of the bag 3. After the blade 404 contacts the surface of the bag 3, the drive unit 402 is activated. Driven by the drive unit 402, the support frame drives multiple blades 404 to rotate at high speed and cut the end of the bag 3 with the inflation port. At this time, the traveling body 6 moves into the bag 3 and the pressing plate is continuously driven upward by multiple lifting units 84 so that the top surface of the pressing plate presses against the part of the bag 3 that contacts the lining layer 1 to make the adhesion more firm. During the pressing process, the pressing pressure can be adjusted by the hydraulic control station 13. The part of the bag 3 that contacts the lining layer 1 on the bottom wall of the cavern is pressed by the trolley main wheel 82 and trolley auxiliary wheel 86 during the process of the traveling body 6 moving into the bag 3.

[0059] S104. After the pressing, the traveling body is moved along the length of the cave, and multiple sealing structures are laid in sequence and heat-fused together. After the bag 3 on the top wall of the cave is pressed, the traveling body 6 continues to move forward and moves to the rear end of the bag 3. At this time, the rear end of the bag 3 is a sealing device. Then, by manipulating the piercing component 4, the rear end of the bag 3 is cut open with the blade 404. It is worth noting that during the process of the traveling body 6 moving forward and pressing the bag 3 through the pressing device 7, the moving unit 11 also moves backward.

[0060] When the rear end of the bag 3 is cut open, the main traveling body 6 exits from the current bag 3 and moves together with the moving unit 11 to the subsequent laying location in the cavern, such as... Figure 8 As shown, when the walls of the cave are covered with bags 3, as Figure 11 and Figure 12As shown, there is a seam 12 between two adjacent bags 3. At this time, on the one hand, a lifting frame can be installed on the traveling body 6, and a hot melt machine can be installed on the top of the lifting frame. The lifting frame is controlled by the controller to move the hot melt machine to the cave wall. The bags 3 at the seam 12 are hot melted together by the hot melt method, thereby realizing the connection between two adjacent bags 3 and eliminating the effect of the seam 12. On the other hand, the tube body 103 can also be moved to the seam 12, and the adhesive medium is sprayed onto the seam 12 through the nozzle 102. Then, the pressing plate is used to press to realize the connection between two adjacent bags 3.

[0061] A third aspect of the present invention provides a sealing assembly, which is laid using the gas storage cavern sealing structure laying method described above; the sealing assembly includes a lining layer 1, a connecting layer 2 and a sealing layer 3; the lining layer 1 is connected to the sealing layer through the connecting layer 2; wherein, the sealing layer is a bag 3, the lining layer 1 is made of concrete, and the connecting layer 2 is made of an adhesive medium.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading the present invention, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the invention.

Claims

1. A gas cavern seal structure laying system, characterized by, include: Main body of the procession; An inflation device is fixed to the traveling body to inflate the sealing structure; A conveying device is mounted on the traveling body and located on one side of the inflation device; A spraying device is disposed opposite to the traveling body and connected to the conveying device. The spraying device is used to spray an adhesive medium onto the sealing structure. The piercing component is a ring-shaped structure connected to one end of the traveling body near the spraying device, used to pierce the sealing structure. The pressing device is placed on the traveling body and located above the inflation device and the conveying device, and is used to press the punctured sealing structure. The conveying device includes: An adhesive supply unit is equipped with an upper adhesive supply hose and a lower adhesive supply hose. The spraying device includes: The tube body has a movable unit connected to its end via a spraying bracket. The movable unit is used to drive the tube body to move back and forth. Two sets of nozzles are arranged circumferentially along the axial direction of the pipe body. One set of nozzles is connected to the upper hose for supplying adhesive, and the other set of nozzles is connected to the lower hose for supplying adhesive. The spraying bracket includes: Multiple support rods, one end of which is welded to the moving unit, and the other end is arranged circumferentially along the axial direction of the tube body.

2. The gas storage cavern sealing structure laying system according to claim 1, characterized in that, The outer wall of the tube is hollow, and one end of the two sets of nozzles is located on the outside of the tube, while the other end is located inside the hollow structure. The ends of the upper and lower adhesive supply hoses extend into the hollow structure and connect to two sets of nozzles.

3. The gas storage cavern sealing structure laying system according to claim 1, characterized in that, The pressing device includes: The lifting units are located at opposite ends of the top of the main body and are arranged at intervals along the length of the main body. The pressing plate has an arc-shaped structure and is installed on the top of multiple lifting units.

4. The gas storage cavern sealing structure laying system according to claim 1, characterized in that, The puncture component includes: The telescopic unit is located at one end of the traveling body near the spraying device; A drive unit is installed at the end of the telescopic unit, and a support frame is installed on the drive end of the drive unit. The support frame is a ring structure. Multiple blades are arranged along the circumference of the support frame axis.

5. The gas storage cavern sealing structure laying system according to claim 1, characterized in that, The moving entity includes: The frame body has auxiliary wheels installed around its bottom. The construction platform is installed on the top of the vehicle frame. The inflation device, conveying device, piercing component and pressing device are all set on the construction platform. The bottom of the construction platform is fixed with support legs, and the support legs are equipped with trolley main wheels.

6. A method for laying a sealing structure for a gas storage cavern, characterized in that, The method employs the gas storage cavern sealing structure laying system as described in any one of claims 1-5, and includes: While driving the traveling body to the preset position, the sealing structure is positioned between the traveling body and the spraying device; Inflate the sealing structure with an inflation device to make it expand and press against the cavern wall, while simultaneously spray an adhesive medium onto the sealing structure with a spraying device. After the sealing structure is bonded to the cavern wall, the front end of the sealing structure is cut open using the piercing component, and the traveling body is controlled to move into the cut sealing structure. When the rear end of the sealing structure is cut open, the pressing device presses the part of the sealing structure that is bonded to the cavern. After the pressing, the main body is moved along the length of the cave, multiple sealing structures are laid in sequence, and the multiple sealing structures are heat-fused together.

7. A sealing assembly, characterized in that, The sealing assembly is laid using the gas storage cavern sealing structure laying method described in claim 6.

8. The sealing assembly according to claim 7, characterized in that, The sealing assembly includes: Lining layer, connecting layer and sealing layer; The lining layer is connected to the sealing layer through the connecting layer; The sealing layer is a bag.

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