Artificial chamber type high-pressure gas storage steel-rubber composite sealing structure and construction technology

Abstract

According to the artificial chamber type high-pressure gas storage steel-rubber composite sealing structure and the construction technology, when rubber sealing layers at the lap joint position of the internal rubber sealing layers and the two ends of the internal rubber sealing layers are vulcanized with L-shaped rubber rings, and meanwhile after the L-shaped rubber rings are vulcanized through O-shaped rubber rings and pressing rings, a rubber layer full-sealing structure is formed inside; through the unwelded steel plate coiled material and the internal full-sealed rubber structure, the steel plate has a certain expansion and contraction amount, and the rubber also has a certain elongation percentage, so that the sealing performance of the chamber is ensured, and compared with a traditional steel tank or a full-sealed steel plate structure, the steel plate coiled material has a certain deformation amount in the aspect of structure; compared with a traditional integral welding structure, the steel plate is prevented from being exploded, the gas storage capacity is greatly improved, the structure is simpler in technology, large-diameter and large-length laying can be achieved, and the technology is more reasonable.

Description

Technical Field

[0001] The invention relates to the technical field of artificial chamber high-pressure gas storage, and in particular to a steel-rubber composite sealing structure and a construction process of an artificial chamber type high-pressure gas storage. Background Art

[0002] The function of the chamber is to install various equipment and machines, store materials and tools, or for other special purposes, such as machine repair rooms, explosives warehouses, rest rooms, etc. Compressed air energy storage refers to the energy storage method of using electrical energy to compress air during the low load period of the power grid, and releasing compressed air to drive the steam turbine to generate electricity during the peak load period of the power grid. The main forms are traditional compressed air energy storage system, compressed air energy storage system with heat storage device, and liquid-gas compression energy storage system.

[0003] At present, artificial chamber-type gas storage generally uses stainless steel tanks for storage, and the existing large-scale artificial chamber gas storage generally uses a large number of steel plates to splice and weld to form a gas storage container. Due to the invisible variables between the steel plates, the gas storage capacity is greatly reduced, and in actual situations, the length and diameter are extremely limited. In addition, the traditional process requires placing steel bars and building steel cages, and the process is complicated. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a steel-rubber composite sealing structure and construction process for an artificial chamber-type high-pressure gas storage reservoir. Structurally, it has a certain deformation amount compared to traditional steel tanks or fully sealed steel plate structures, which prevents the steel plates from exploding and greatly improves the gas storage capacity. From a technological point of view, it is simpler than traditional integral welded structures, can achieve large-diameter and long-length laying, and the process is more reasonable, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an artificial chamber type high-pressure gas storage steel-rubber composite sealing structure, characterized in that it includes formation surrounding rock, concrete layer, steel-rubber composite sealing layer, inner end plate, outer end plate and L-shaped rubber ring, the formation surrounding rock is provided with an installation cavity, the inner wall of the installation cavity is filled with a concrete layer, the inner wall of the concrete layer is a smooth surface, the inner wall of the concrete layer is circumferentially paved with a steel-rubber composite sealing layer, the formation surrounding rock is provided with an inner end plate at the inner end of the installation cavity, the formation surrounding rock is provided with an outer end plate at the outer end of the installation cavity, the outer periphery of the inner end plate is connected to the inner end of the steel-rubber composite sealing layer through an L-shaped rubber ring, the outer periphery of the outer end plate is connected to the outer end of the steel-rubber composite sealing layer through an L-shaped rubber ring, and a manhole is provided at the center of the outer end plate;

[0006] The steel-rubber composite sealing layer is formed by splicing a number of annularly arranged steel-rubber composite plates, the steel-rubber composite plates include steel plate coils and rubber sealing layers, the inner surface of the steel plate coils is provided with a rubber sealing layer, the steel plate coils between adjacent steel-rubber composite plates are connected, the rubber sealing layers between adjacent steel-rubber composite plates overlap each other and are welded at the overlaps by vulcanization, and the rubber sealing layers of the steel-rubber composite plates at both ends are respectively welded to the corresponding L-shaped rubber rings by vulcanization.

[0007] Preferably, the present invention provides a steel-rubber composite sealing structure for an artificial chamber-type high-pressure gas storage reservoir, wherein the length of the steel plate coil is not less than the circumference of the installation cavity opened by the surrounding rock of the formation, and the two ends of the steel plate coil are overlapped.

[0008] Preferably, the present invention provides a steel-rubber composite sealing structure for an artificial chamber-type high-pressure gas storage reservoir, wherein the steel sheet coil is bonded to the inner wall of the concrete layer by an adhesive.

[0009] Preferably, the present invention provides a steel-rubber composite sealing structure for an artificial chamber-type high-pressure gas storage reservoir, wherein the thickness of the steel sheet coil is not greater than 2 mm, the thickness of the rubber sealing layer is not greater than 5 mm, and the width of the rubber sealing layer is greater than the width of the steel sheet coil.

[0010] Preferably, the present invention provides a steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage reservoir, wherein the inner end plate and the outer end plate are coaxially welded with a fixing ring, a pressure ring is provided on the outside of the fixing ring by bolts, the inner ring of the pressure ring is connected to the fixing ring by bolts, an annular protrusion is provided on the periphery of the pressure ring, a groove is provided at one end of the annular protrusion away from the pressure ring, an O-type rubber ring is provided in the groove, the O-type rubber ring is pressed on the corresponding L-shaped rubber ring and connected to each other by vulcanization, and a plurality of heating rod slots are evenly provided on the annular protrusion.

[0011] Preferably, the present invention provides a construction process for a steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage, which comprises the following steps:

[0012] Step 1: Conduct field survey, select a suitable location for drilling and blasting, drill holes and use explosives to blast out an installation cavity with a suitable inner diameter and depth;

[0013] Step 2: Lay a concrete layer on the inner surface of the installation cavity of the formation surrounding rock to make the installation cavity cylindrical, and grind the surface of the concrete layer. At the same time, move the inner end plate to the inner end of the installation cavity first;

[0014] Step 3: Lay two guide rails in the installation cavity, match the paving trolley with the guide rails, and move the paving trolley to the inner end of the installation cavity, and then lay the wound steel-rubber composite board in a ring shape from the inside to the outside on the inner surface of the installation cavity. During the laying process, first place one of the L-shaped rubber rings on the periphery of the inner end plate, and then apply cold glue on the inner surface of the concrete layer and on the outer area of ​​the two guide rails. Then lay the steel-rubber composite board on the inner surface of the concrete layer, and cut off the steel-rubber composite board after reserving a certain length. When laying, the steel plate coils of the two adjacent steel-rubber composite boards are connected, and the rubber sealing layers of the two adjacent steel-rubber composite boards are overlapped. When laying the steel-rubber composite board, remove the corresponding section of the guide rail for each layer laid from the inside to the outside, and apply cold glue to the position where the guide rail is installed before the concrete layer. At the same time, lay the reserved steel-rubber composite board at the corresponding position of the concrete layer to complete the laying of a circle of steel-rubber composite boards;

[0015] Step 4: Install the outer end plate on the outer end of the installation cavity, and place another L-shaped rubber ring on the outer periphery of the outer end plate;

[0016] Step 5: Disassemble the paving trolley and the remaining guide rails, and remove the paving trolley and guide rail parts from the manhole of the outer end plate;

[0017] Step 6: Then, the parts of the movable vulcanizing trolley are sent into the installation cavity through the manhole and assembled in the installation cavity;

[0018] Step 7: Move the mobile vulcanizing trolley to the inner end of the installation cavity, and vulcanize the rubber sealing layer of the steel-rubber composite plate at the inner end and the L-shaped rubber ring at the inner end through the supporting heating part of the mobile vulcanizing trolley, so that the rubber sealing layer of the steel-rubber composite plate at the inner end and the L-shaped rubber ring at the inner end are connected and sealed;

[0019] Step 8: The mobile vulcanizing trolley gradually moves toward the outer end. During the movement, the overlapping parts of the rubber sealing layers of the adjacent steel-rubber composite panels are vulcanized by the supporting heating part of the mobile vulcanizing trolley, so that the overlapping parts of the rubber sealing layers of the adjacent steel-rubber composite panels are connected and sealed;

[0020] Step 9: The mobile vulcanizing trolley moves to the outer end, and the rubber sealing layer of the steel-rubber composite plate at the outer end and the L-shaped rubber ring at the outer end are first vulcanized by the supporting heating part of the mobile vulcanizing trolley, so that the rubber sealing layer of the steel-rubber composite plate at the outer end and the L-shaped rubber ring at the outer end are connected and sealed;

[0021] Step 10: Dismantle the mobile vulcanizing trolley and remove the parts of the mobile vulcanizing trolley from the manhole of the outer end plate;

[0022] Step 11: Send the scaffolding parts into the installation cavity from the manhole of the outer end plate, pass the scaffolding and weld the fixing ring to the inner side of the inner end plate and the outer end plate, and at the same time, first insert the O-type rubber ring into the groove of the annular protrusion, then connect the pressure ring with the fixing ring through bolts, and press the O-type rubber ring onto the surface of the corresponding L-type rubber ring through the annular protrusion, insert the heating rod into the heating rod slot of the annular protrusion, heat the annular protrusion, so that the O-type rubber ring and the L-type rubber ring are vulcanized and pressed through the pressure ring, thereby realizing the sealing of the outer periphery of the inner end plate and the outer end plate. At this time, the interior of the chamber is sealed;

[0023] Step 12: Remove the scaffolding and move the installation inner cavity out of the manhole of the outer end plate. Finally, seal and connect the inlet and outlet air pipes to the manhole of the outer end plate to complete the construction.

[0024] Preferably, the present invention provides a construction process for a steel-rubber composite sealing structure of an artificial chamber-type high-pressure gas storage reservoir, wherein the paving trolley in step three is assembled from several layers of platforms, several columns and several ladders, and two rollers are provided at the bottom of the paving trolley, and the rollers are in rolling cooperation with the guide rails.

[0025] Preferably, the present invention provides a construction process for a steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage reservoir, wherein the mobile vulcanizing trolley comprises a main beam, human-shaped frames are arranged on both sides of the main beam, first hydraulic support feet are movably arranged at both ends of the lower part of the human-shaped frames, a support frame is arranged between the two human-shaped frames, a hanging rail and a rack are arranged on the lower surface of the support frame, the hanging rail is slidably matched with a slide seat, second hydraulic support feet are respectively arranged on both sides of both ends of the slide seat, the interior of the slide seat is also matched with the rack through a reduction motor and a gear, a rotating plate is rotatably arranged at both ends of the main beam, a gear ring is arranged on the inner side of the rotating plate, the two ends of the main beam are matched through a reduction motor, a gear and a gear ring, a plurality of support arms are evenly arranged on the outer end of the rotating plate, a hydraulic telescopic rod is arranged on the outer end of the support arm, an arc-shaped heating vulcanization plate is arranged on the outer end of the hydraulic telescopic rod, and the vulcanization between the L-shaped rubber ring and the rubber sealing layer is achieved through the arc-shaped heating vulcanization plate.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] In the invention, when the internal rubber sealing layer overlaps and the rubber sealing layers at both ends are vulcanized with the L-shaped rubber ring, and the L-shaped rubber ring is vulcanized through the O-shaped rubber ring and the compression ring, a rubber layer fully sealed structure is formed inside, thereby forming a chamber high-pressure gas storage reservoir. Through the unwelded steel plate coil and the internal fully sealed rubber structure, the steel plate has a certain amount of expansion and contraction, and the rubber also has a certain elongation rate, thereby ensuring the sealing of the chamber. Structurally, it has a certain amount of deformation compared to traditional steel tanks or fully sealed steel plate structures (steel plates are welded to each other), which prevents the steel plate from exploding and greatly improves the gas storage capacity. From a process point of view, it is simpler than the traditional integral welded structure, can achieve large diameter and long length laying, and the process is more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention;

[0029] Figure 2 For attachment Figure 1 The enlarged structural diagram at the mark A in the middle;

[0030] Figure 3 It is a schematic diagram of the sealing structure located at the inner end plate of the present invention (the sealing structure at the outer end plate is the same as the sealing structure at the end plate);

[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention located at the chamber;

[0032] Figure 5 For attachment Figure 4 The enlarged structural diagram at the mark B in the middle;

[0033] Figure 6 This is a schematic diagram of the splicing structure of the steel-rubber composite panel;

[0034] Figure 7 Schematic diagram of the paving trolley structure

[0035] Figure 8 It is a schematic diagram of the side structure of the mobile vulcanizing trolley;

[0036] Fig. 9 This is a schematic diagram of the front view structure of the mobile vulcanizing trolley.

[0037] In the figure: surrounding rock 1, concrete layer 2, inner end plate 3, outer end plate 4, L-shaped rubber ring 5, installation inner cavity 6, manhole 7, steel plate coil 8, rubber sealing layer 9, fixing ring 10, pressure ring 11, annular protrusion 12, O-shaped rubber ring 13, heating rod slot 14, platform 15, column 16, ladder 17, roller 18, main beam 19, human frame 20, first hydraulic support foot 21, support frame 22, hanging rail 23, slide seat 24, second hydraulic support foot 25, rotating plate 26, support arm 27, hydraulic telescopic rod 28, arc-shaped heated vulcanized plate 29. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solution of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention;

[0039] It should be noted that, in the description of the present invention, it should be noted that the terms "inside", "outside", "up", "down", "both sides", "one end", "the other end", "left", "right", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the 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 element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] See also Figure 1-6 The present invention provides a technical solution: a steel-rubber composite sealing structure of an artificial cavern type high-pressure gas storage reservoir, comprising a formation surrounding rock 1, a concrete layer 2, a steel-rubber composite sealing layer, an inner end plate 3, an outer end plate 4 and an L-shaped rubber ring 5, the formation surrounding rock 1 is provided with an installation cavity 6, the inner wall of the installation cavity 6 is filled with a concrete layer 2, the inner wall of the concrete layer 2 is a smooth surface, and the inner wall of the concrete layer 2 is circumferentially paved with a steel-rubber composite sealing layer, the formation surrounding rock 1 is provided with an inner end plate 3 at the inner end of the installation cavity 6, the formation surrounding rock 1 is provided with an outer end plate 4 at the outer end of the installation cavity 6, the outer periphery of the inner end plate 3 is connected to the inner end of the steel-rubber composite sealing layer through an L-shaped rubber ring 5, wherein the L-shaped rubber ring 5 is a rubber ring with an L-shaped cross section, the outer periphery of the outer end plate 4 is connected to the outer end of the steel-rubber composite sealing layer through the L-shaped rubber ring 5, and a manhole 7 is provided at the center of the outer end plate 4;

[0041] The steel-rubber composite sealing layer is formed by splicing a number of annularly arranged steel-rubber composite plates, the steel-rubber composite plates include steel coils 8 and rubber sealing layers 9, the inner surface of the steel coils 8 is provided with rubber sealing layers 9, the steel coils 8 between adjacent steel-rubber composite plates are connected, the rubber sealing layers 9 between adjacent steel-rubber composite plates overlap each other and are welded at the overlap by vulcanization, the rubber sealing layers 9 of the steel-rubber composite plates at both ends are respectively welded to the corresponding L-shaped rubber rings 5 ​​by vulcanization, the length of the steel coil 8 is not less than the circumference of the installation cavity 6 opened by the formation surrounding rock 1, and the two ends of the steel coil 8 overlap each other. With this structure, during the high-pressure gas storage process, the steel sheet coil 8 can be stretched open by the internal pressure and has a certain deformation amount. The steel sheet coil 8 is bonded to the inner wall of the concrete layer 2 by an adhesive to achieve the bonding between the steel sheet coil 8 and the concrete layer 2. The thickness of the steel sheet coil 8 is not more than 2 mm, the thickness of the rubber sealing layer 9 is not more than 5 mm, and the width of the rubber sealing layer 9 is greater than the width of the steel sheet coil 8. Therefore, when the steel-rubber composite plates are connected, the steel sheet coil 8 is connected, and the rubber sealing layer 9 has an overlapping composite area, so that the two adjacent rubber sealing layers 9 can be vulcanized and welded in the overlapping composite area;

[0042] The inner end plate 3 and the outer end plate 4 are coaxially welded with a fixing ring 10, and a pressure ring 11 is provided on the outside of the fixing ring 10 by bolts. The inner ring of the pressure ring 11 is connected to the fixing ring 10 by bolts. An annular protrusion 12 is provided on the outer periphery of the pressure ring 11, and a groove is provided at the end of the annular protrusion 12 away from the pressure ring 11, and an O-type rubber ring 13 is provided in the groove. The O-type rubber ring 13 is pressed on the corresponding L-shaped rubber ring 5 and welded to each other by vulcanization. A number of heating rod slots 14 are evenly provided on the annular protrusion 12, and the pressure ring 11 and the annular protrusion 12 are pressed on the L-shaped rubber ring 5. At the same time, the annular protrusion 12 is heated by inserting the heating rod, so that the O-type rubber ring 13 and the L-shaped rubber ring 5 are vulcanized and welded.

[0043] A construction process of a steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage reservoir, characterized in that it comprises the following steps:

[0044] Step 1: Conduct field survey, select a suitable location for drilling and blasting, drill a hole and use explosives to blast out an installation cavity 6 with a suitable inner diameter and depth;

[0045] Step 2: Lay a concrete layer 2 on the inner surface of the installation cavity 6 of the formation surrounding rock 1 to make the installation cavity 6 cylindrical, and grind the surface of the concrete layer 2, and at the same time move the inner end plate 3 to the inner end of the installation cavity 6;

[0046] Step 3: Lay two guide rails in the installation cavity 6, match the paving trolley with the guide rails, and move the paving trolley to the inner end of the installation cavity 6, and then lay the wound steel-rubber composite plate in a ring shape from the inside to the outside on the inner surface of the installation cavity 6. During the laying process, first place one of the L-shaped rubber rings 5 ​​on the periphery of the inner end plate 3, and then apply cold glue on the inner surface of the concrete layer 2 and on the outer area of ​​the two guide rails, then lay the steel-rubber composite plate on the inner surface of the concrete layer 2, and reserve a length before laying the steel-rubber composite plate. The plywood is cut (cut during construction, the coil rack can be prevented on the laying trolley, and it can also be cut into steel-rubber composite boards of a certain length in advance). When laying, the steel coils 8 of two adjacent steel-rubber composite boards are connected, and the rubber sealing layers 9 of two adjacent steel-rubber composite boards are overlapped. When laying the steel-rubber composite board, the corresponding section of the guide rail is removed for each layer laid from the inside to the outside, and cold glue is applied to the position where the guide rail is installed before the concrete layer 2, and the reserved steel-rubber composite board is laid at the corresponding position of the concrete layer 2, and the laying of a circle of steel-rubber composite board is completed;

[0047] Step 4: Install the outer end plate 4 on the outer end of the installation inner cavity 6, and place another L-shaped rubber ring 5 on the periphery of the outer end plate 4;

[0048] Step 5: Disassemble the paving trolley and the remaining guide rails, and remove the paving trolley and the guide rail components from the manhole 7 of the outer end plate 4;

[0049] Step 6: Then, the parts of the movable vulcanizing trolley are sent into the installation cavity 6 through the manhole 7 and assembled in the installation cavity 6;

[0050] Step 7: Move the mobile vulcanization trolley to the inner end of the installation inner cavity 6, and vulcanize the rubber sealing layer 9 of the steel-rubber composite plate at the inner end and the L-shaped rubber ring 5 at the inner end through the supporting heating part of the mobile vulcanization trolley, so that the rubber sealing layer 9 of the steel-rubber composite plate at the inner end and the L-shaped rubber ring 5 at the inner end are connected and sealed;

[0051] Step 8: The mobile vulcanizing trolley gradually moves toward the outer end. During the movement, the overlapping parts of the rubber sealing layers 9 of the adjacent steel-rubber composite plates are vulcanized by the supporting and heating part of the mobile vulcanizing trolley, so that the overlapping parts of the rubber sealing layers 9 of the adjacent steel-rubber composite plates are connected and sealed;

[0052] Step 9: The mobile vulcanizing trolley moves to the outer end, and the rubber sealing layer 9 of the steel-rubber composite plate at the outer end and the L-shaped rubber ring 5 at the outer end are first vulcanized by the supporting and heating part of the mobile vulcanizing trolley, so that the rubber sealing layer 9 of the steel-rubber composite plate at the outer end and the L-shaped rubber ring 5 at the outer end are connected and sealed;

[0053] Step 10: dismantle the mobile vulcanizing trolley and remove the parts of the mobile vulcanizing trolley from the manhole 7 of the outer end plate 4;

[0054] Step 11: Send the scaffolding parts into the installation cavity 6 from the manhole 7 of the outer end plate 4, and weld the fixing ring 10 to the inner side of the inner end plate 3 and the outer end plate 4 through the scaffolding. At the same time, first insert the O-type rubber ring 13 into the groove of the annular protrusion 12, and then connect the pressure ring 11 to the fixing ring 10 through bolts, and press the O-type rubber ring 13 on the surface of the corresponding L-type rubber ring 5 through the annular protrusion 12, insert the heating rod into the heating rod slot 14 of the annular protrusion 12, heat the annular protrusion 12, set the vulcanization temperature to 170°C, heat to 170°C, keep warm for 40 minutes, turn off the power, so that the O-type rubber ring 13 and the L-type rubber ring 5 are vulcanized and pressed by the pressure ring 11, so as to achieve the sealing of the outer periphery of the inner end plate 3 and the outer end plate 4. At this time, the interior of the chamber is sealed;

[0055] Step 12: Remove the scaffolding and remove the installation inner cavity 6 from the manhole 7 of the outer end plate 4, and finally seal and connect the inlet and outlet air pipes to the manhole 7 of the outer end plate 4 to complete the construction.

[0056] like Figure 7 As shown, the paving trolley is assembled from several layers of platforms 15, several columns 16 and several ladders 17. Two rollers 18 are arranged at the bottom of the paving trolley. The rollers 18 roll with the guide rails to achieve circumferential paving of the steel-rubber composite board through the multi-layer paving trolley.

[0057] like Figure 8-9As shown, the mobile vulcanizing trolley includes a main beam 19, a humanoid frame 20, a first hydraulic support foot 21, a support frame 22, a hanging rail 23, a slide 24, a second hydraulic support foot 25, a rotating plate 26, a support arm 27, a hydraulic telescopic rod 28 and an arc-shaped heated vulcanizing plate 29. Humanoid frames 20 are arranged on both sides of the main beam 19. The first hydraulic support feet 21 are movably arranged at both ends of the lower part of the humanoid frame 20. A support frame 22 is arranged between the two humanoid frames 20. The lower surface of the support frame 22 is provided with a hanging rail 23 and a rack. The hanging rail 23 is slidably matched with a slide 24. The second hydraulic support feet 25 are respectively arranged on both sides of the two ends of the slide 24. The interior of the slide 24 is also matched with the rack through a reduction motor and a gear. A rotating plate 26 is rotatably arranged at both ends of the main beam 19. The rotating plate 26 A gear ring is arranged on the inner side, and both ends of the main beam 19 cooperate with a reduction motor, a gear and a gear ring. A number of support arms 27 are evenly arranged on the outer end of the rotating plate 26, and a hydraulic telescopic rod 28 is arranged on the outer end of the support arm 27. An arc-shaped heating vulcanization plate 29 is arranged on the outer end of the hydraulic telescopic rod 28. The vulcanization between the L-shaped rubber ring 5 and the rubber sealing layer 9 is realized by the arc-shaped heating vulcanization plate 29. The method of use is as follows: it is supported in the installation inner cavity by the first hydraulic supporting foot 21, at which time the second hydraulic supporting foot 25 is lifted, and the slide 24 moves along the hanging rail 23, and then it is supported in the installation inner cavity by the second hydraulic supporting foot 25, the first hydraulic supporting foot 21 is lifted, and the slide 24 moves along the hanging rail 23, so that the whole moves forward, thereby realizing the movement of the mobile vulcanization trolley along the installation inner cavity. When the mobile vulcanizing trolley moves, the arc-shaped heated vulcanizing plate 29 stops at the overlap of the two rubber sealing layers 9, and the arc-shaped heated vulcanizing plate 29 is pushed outward by the hydraulic telescopic rod 28, and the arc-shaped heated vulcanizing plate 29 is pressed at the overlap of the two rubber sealing layers 9, so that the surface pressure of the arc-shaped heated vulcanizing plate 29 is 1.3Mpa, thereby realizing the vulcanization and welding at the overlap of the two rubber sealing layers 9, and then the hydraulic telescopic rod 28 is recovered, and the rotating plate 26 is rotated through the cooperation of the reduction motors, gears and gear rings at both ends of the main beam 19, and all the arc-shaped heated vulcanizing plates 29 are rotated in the circumferential direction to the next vulcanization area, and the hydraulic telescopic rod 28 is pushed out again, and the arc-shaped heated vulcanizing plate 29 is vulcanized again, until the vertical seams at the overlap of the two rubber sealing layers 9 are completely vulcanized and sealed, and then the mobile vulcanizing trolley is moved to the next vulcanization area.

[0058] In this invention, when the internal rubber sealing layer 9 overlaps and the rubber sealing layer 9 at both ends and the L-shaped rubber ring 5 are vulcanized, and the L-shaped rubber ring 5 is vulcanized through the O-shaped rubber ring 13 and the pressure ring 11, a rubber layer fully sealed structure is formed inside, thereby forming a chamber high-pressure gas storage. Through the unwelded steel plate coil and the internal fully sealed rubber structure, the steel plate has a certain amount of expansion and contraction, and the rubber also has a certain elongation rate, thereby ensuring the sealing of the chamber. Structurally, it has a certain amount of deformation compared to traditional steel tanks or fully sealed steel plate structures (steel plates are welded to each other), which prevents the steel plate from exploding and greatly improves the gas storage capacity. From a process perspective, it is simpler than the traditional integral welded structure, and can achieve large-diameter and long-length laying (diameter over 15m, length over 400m), and the process is more reasonable.

[0059] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0060] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A steel-rubber composite sealing structure for an artificial chamber type high pressure gas storage, characterized in that: The invention comprises a formation surrounding rock (1), a concrete layer (2), a steel-rubber composite sealing layer, an inner end plate (3), an outer end plate (4) and an L-shaped rubber ring (5); the formation surrounding rock (1) is provided with an installation inner cavity (6); the inner wall of the installation inner cavity (6) is filled with a concrete layer (2); the inner wall of the concrete layer (2) is a smooth surface; the inner wall of the concrete layer (2) is circumferentially paved with a steel-rubber composite sealing layer; the formation surrounding rock (1) is provided with an inner end plate (3) at the inner end of the installation inner cavity (6); the formation surrounding rock (1) is provided with an outer end plate (4) at the outer end of the installation inner cavity (6); the outer periphery of the inner end plate (3) is connected to the inner end of the steel-rubber composite sealing layer via an L-shaped rubber ring (5); the outer periphery of the outer end plate (4) is connected to the outer end of the steel-rubber composite sealing layer via an L-shaped rubber ring (5); a manhole (7) is provided at the center of the outer end plate (4); The steel-rubber composite sealing layer is formed by splicing a plurality of annularly arranged steel-rubber composite plates, wherein the steel-rubber composite plates include a steel plate coil (8) and a rubber sealing layer (9), wherein the inner surface of the steel plate coil (8) is provided with a rubber sealing layer (9), wherein the steel plate coils (8) between adjacent steel-rubber composite plates are connected, wherein the rubber sealing layers (9) between adjacent steel-rubber composite plates overlap each other and are welded at the overlapped portions by vulcanization, and wherein the rubber sealing layers (9) of the steel-rubber composite plates at both ends are respectively welded to the corresponding L-shaped rubber rings (5) by vulcanization.

2. The steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage according to claim 1 is characterized in that: The length of the steel plate coil (8) is not less than the circumference of the installation inner cavity (6) opened by the formation surrounding rock (1), and the two ends of the steel plate coil (8) are overlapped.

3. The steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage according to claim 1 is characterized in that: The steel plate coil (8) is bonded to the inner wall of the concrete layer (2) by means of an adhesive.

4. The steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage according to claim 1 is characterized in that: The thickness of the steel plate coil (8) is not greater than 2 mm, the thickness of the rubber sealing layer (9) is not greater than 5 mm, and the width of the rubber sealing layer (9) is greater than the width of the steel plate coil (8).

5. The steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage according to claim 1 is characterized in that: The inner end plate (3) and the outer end plate (4) are both coaxially welded with a fixing ring (10), a pressure ring (11) is arranged on the outer side of the fixing ring (10) by bolts, the inner ring of the pressure ring (11) is connected to the fixing ring (10) by bolts, an annular protrusion (12) is arranged on the outer periphery of the pressure ring (11), a groove is arranged at one end of the annular protrusion (12) away from the pressure ring (11), an O-type rubber ring (13) is arranged in the groove, the O-type rubber ring (13) is pressed on the corresponding L-type rubber ring (5) and is welded to each other by vulcanization, and a plurality of heating rod slots (14) are evenly arranged on the annular protrusion (12).

6. A construction process for a steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage, characterized in that: The following steps are involved: Step 1: Conduct field survey, select a suitable location for drilling and blasting, drill a hole and use explosives to blast out an installation cavity (6) with a suitable inner diameter and depth; Step 2: laying a concrete layer (2) on the inner surface of the installation cavity (6) of the surrounding rock (1) to make the installation cavity (6) cylindrical, and grinding the surface of the concrete layer (2), while moving the inner end plate (3) to the inner end of the installation cavity (6); Step 3: Lay two guide rails in the installation cavity (6), match the laying trolley with the guide rails, and move the laying trolley to the inner end of the installation cavity (6), and then lay the wound steel-rubber composite board in a ring shape from the inside to the outside on the inner surface of the installation cavity (6). During the laying process, first place one of the L-shaped rubber rings (5) on the outer periphery of the inner end plate (3), and then apply cold glue on the inner surface of the concrete layer (2) and on the outer area of ​​the two guide rails, and then lay the steel-rubber composite board on the concrete layer. (2) the inner surface, and cut the steel-rubber composite board after reserving a certain length, so that the steel sheet coils (8) of two adjacent steel-rubber composite boards are connected when laying, and the rubber sealing layers (9) of two adjacent steel-rubber composite boards are overlapped. When laying the steel-rubber composite board, the corresponding section of the guide rail is removed from the inside to the outside for each layer, and cold glue is applied to the position where the guide rail is installed before the concrete layer (2), and the reserved steel-rubber composite board is laid at the corresponding position of the concrete layer (2) at the same time, completing the laying of a circle of steel-rubber composite board; Step 4: Install the outer end plate (4) at the outer end of the installation inner cavity (6), and place another L-shaped rubber ring (5) on the periphery of the outer end plate (4); Step 5: Disassemble the paving trolley and the remaining guide rails, and remove the paving trolley and the guide rail components from the manhole (7) of the outer end plate (4); Step 6: Then, the parts of the movable vulcanizing trolley are sent into the installation cavity (6) through the manhole (7) and assembled in the installation cavity (6); Step 7: Move the mobile vulcanizing trolley to the inner end of the installation inner cavity (6), and vulcanize the rubber sealing layer (9) of the steel-rubber composite sealing layer at the inner end and the L-shaped rubber ring (5) at the inner end through the supporting heating part of the mobile vulcanizing trolley, so that the rubber sealing layer (9) of the steel-rubber composite plate at the inner end and the L-shaped rubber ring (5) at the inner end are connected and sealed; Step 8: The mobile vulcanizing trolley gradually moves toward the outer end. During the movement, the overlapping parts of the rubber sealing layers (9) of the adjacent steel-rubber composite plates are vulcanized by the supporting and heating part of the mobile vulcanizing trolley, so that the overlapping parts of the rubber sealing layers (9) of the adjacent steel-rubber composite plates are connected and sealed; Step 9: The mobile vulcanizing trolley is moved to the outer end, and the rubber sealing layer (9) of the steel-rubber composite plate at the outer end and the L-shaped rubber ring (5) at the outer end are first vulcanized by the supporting and heating part of the mobile vulcanizing trolley, so that the rubber sealing layer (9) of the steel-rubber composite plate at the outer end and the L-shaped rubber ring (5) at the outer end are connected and sealed; Step 10: dismantle the mobile vulcanizing trolley and remove the parts of the mobile vulcanizing trolley from the manhole (7) of the outer end plate (4); Step 11: The scaffolding parts are sent into the installation cavity (6) through the manhole (7) of the outer end plate (4), and the fixing ring (10) is welded to the inner side of the inner end plate (3) and the outer end plate (4) through the scaffolding. At the same time, the O-type rubber ring (13) is first inserted into the groove of the annular protrusion (12), and then the pressure ring (11) is connected to the fixing ring (10) by bolts, and the O-type rubber ring (13) is pressed onto the surface of the corresponding L-type rubber ring (5) through the annular protrusion (12), and the heating rod is inserted into the heating rod slot (14) of the annular protrusion (12), and the annular protrusion (12) is heated, so that the O-type rubber ring (13) and the L-type rubber ring (5) are vulcanized and pressed by the pressure ring (11), thereby achieving the sealing of the outer periphery of the inner end plate (3) and the outer end plate (4). At this time, the interior of the chamber is sealed; Step 12: Remove the scaffolding and remove the installation inner cavity (6) from the manhole (7) of the outer end plate (4), and finally seal and connect the inlet and outlet air pipes to the manhole (7) of the outer end plate (4) to complete the construction.

7. The construction process of a steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage according to claim 6 is characterized in that: The paving trolley is assembled from a plurality of platforms (15), a plurality of columns (16) and a plurality of ladders (17). Two rollers (18) are arranged at the bottom of the paving trolley, and the rollers (18) are in rolling cooperation with the guide rails.

8. The construction process of the steel-rubber composite sealing structure of an artificial chamber type high-pressure gas storage according to claim 6 is characterized by: The mobile vulcanizing trolley comprises a main beam (19), a humanoid frame (20), a first hydraulic support foot (21), a support frame (22), a hanging rail (23), a slide seat (24), a second hydraulic support foot (25), a rotating plate (26), a support arm (27), a hydraulic telescopic rod (28) and an arc-shaped heated vulcanizing plate (29). The main beam (19) is provided with a humanoid frame (20) on both sides, and the first hydraulic support foot (21) is movably provided at both ends of the lower part of the humanoid frame (20). A support frame (22) is provided between the two humanoid frames (20), and a hanging rail (23) and a rack are provided on the lower surface of the support frame (22). The hanging rail (23) is slidably matched with a slide seat (24). The slide seat The two sides of the two ends of the main beam (19) are respectively provided with second hydraulic support feet (25), the interior of the slide seat (24) is also coordinated with a reduction motor and a gear and a rack, the two ends of the main beam (19) are rotatably provided with a rotating plate (26), the inner side of the rotating plate (26) is provided with a gear ring, the two ends of the main beam (19) are coordinated with a reduction motor, a gear and a gear ring, the outer end of the rotating plate (26) is evenly provided with a plurality of support arms (27), the outer end of the support arm (27) is provided with a hydraulic telescopic rod (28), the outer end of the hydraulic telescopic rod (28) is provided with an arc-shaped heated vulcanization plate (29), and the vulcanization between the L-shaped rubber ring (5) and the rubber sealing layer (9) is achieved by the arc-shaped heated vulcanization plate (29).

Images