Annular gas storage hole steel lining installation system and installation method

Abstract

The invention relates to the field of compressed air energy storage engineering pressure steel linings, in particular to an annular air storage hole steel lining installation system and method.The installation system comprises at least one in-hole workshop, and each in-hole workshop comprises a tile transfer station, a single-section assembling and welding station, a single-section assembling and welding station, a single-section assembling and welding station and a single-section assembling and welding station, the single-section assembling and welding station is located in the gas storage hole main hole, is close to the construction branch hole and is used for assembling and rounding the tiles into single-section steel lining pipe sections; the large-section assembling and welding station is located in the gas storage hole main hole, is close to the single-section assembling and welding station and is used for assembling and welding the single-section steel lining pipe section into a steel lining large section; and the large section transportation station is located in the gas storage hole main hole, is close to the large section assembling and welding station and is used for transporting the assembled and welded steel lining large section to an installation position for installation. A complete in-hole workshop system can be formed, in-hole mechanical and intelligent assembly line type construction operation of the gas storage hole steel lining from tiles to large pipe joints is achieved, and the construction progress is accelerated.

Description

Technical Field

[0001] The invention relates to the field of pressure steel linings for compressed air energy storage projects, and in particular to an installation system and method for an annular air storage cave steel lining. Background Art

[0002] Compressed air energy storage utilizes excess electricity when the power system is under low load. An electric motor drives an air compressor to compress air into a large-capacity enclosed underground cave, abandoned mine, sunken seabed gas tank, cave, expired oil and gas well or newly built gas storage well as an air storage chamber. When the power system is generating insufficient electricity, the compressed air is mixed with oil or natural gas through a heat exchanger and burned, and then introduced into a turbine to generate electricity.

[0003] Compressed air energy storage power stations mainly use gas storage devices to store compressed air. Small-scale compressed air energy storage power stations can use above-ground steel storage tanks as gas storage devices. For large-scale compressed air energy storage power stations, the space required for gas storage can reach 100,000 or even 1 million cubic meters. If above-ground gas storage tanks are used, the land occupation is too large and the cost is too high. The gas storage device is generally underground. Underground gas storage devices can mainly use structures such as mined geological caves, naturally formed water-bearing rock formations, mined or specially excavated salt caves, and underground caves artificially excavated in hard rocks. At present, compressed air energy storage power stations built at home and abroad mostly use natural geological structures, but these geological structures are often unavailable, which greatly restricts the site selection and large-scale construction of power station projects. For areas with construction needs but no special geological conditions such as salt rock, saline layer, abandoned mines, etc., artificial excavation of underground caverns in hard rocks as underground gas storage caverns has become an important way. When artificially excavating underground caverns in hard rocks, steel linings can be used as sealing structures, and how to quickly construct large-diameter steel lining structures in the caves is an urgent problem to be solved. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a ring-shaped gas storage cavern steel lining installation system and method, which realizes the transfer of the pipe segment manufacturing workshop or manufacturing system from outside the cavern to inside the cavern, and realizes the mechanized and intelligent assembly line construction of the gas storage cavern steel lining from tiles to large pipe segments inside the cavern, thereby reducing the construction time of each process, speeding up the construction progress, saving labor costs, and meeting the requirements of a short project construction period.

[0005] In a first aspect, the present invention provides an annular gas storage cavern steel liner installation system, comprising at least one cavern workshop, each of the cavern workshops comprising: The tile transfer station is located in the construction branch tunnel and is used to transfer tiles to the single-section welding station; The single-section welding station is located in the main tunnel of the gas storage tunnel and close to the construction branch tunnel. The tiles are assembled into a single steel liner section using welding equipment; The large section welding station is located in the main tunnel of the gas storage tunnel and close to the single section welding station, and is used to weld three or more single steel liner sections into a large steel liner section; The large section transport station is located in the main tunnel of the gas storage tunnel and close to the large section assembly and welding station. It is used to transport the welded large steel lining sections to the installation location for installation.

[0006] Preferably, the tile transfer station includes at least one tile transfer trolley for lateral and longitudinal transfer of tiles.

[0007] Preferably, the single-section welding station can utilize an automatic submerged arc welding device to perform automatic welding of the longitudinal seam.

[0008] Preferably, the single-section assembly welding station assembles the tiles into a single-section steel liner section through an assembly welding device.

[0009] Preferably, the assembly welding device comprises a circular assembly machine and a rotary assembly welding platform.

[0010] Preferably, the large section assembly welding station is located in front of the single section assembly welding station, and includes at least one adjustable roller frame.

[0011] Preferably, the large section transport station is located in front of the large section assembly and welding station, and includes at least one set of adjustable roller frames or steel pipe transport vehicles.

[0012] Preferably, the large section transport station is provided with a temporary support for supporting the large section of the steel lining.

[0013] Preferably, an annular gas storage cavern steel liner installation system further comprises: The large section storage station is located between the large section assembly welding station and the large section transportation station, and is used to temporarily store the large steel lining sections that have been welded at the large section assembly welding station.

[0014] Preferably, a steel lining installation system for an annular gas storage cavern includes two in-cave workshops, wherein the two in-cave workshops are respectively located at the intersection of two straight pipe sections of a construction branch cavern and the annular gas storage cavern.

[0015] In a second aspect, the present invention provides a method for installing a steel lining of an annular gas storage cavern, wherein a construction branch cavern is located in the middle of the gas storage cavern, one in-cave workshop is arranged on the left side of the construction branch cavern, and another in-cave workshop is arranged on the right side of the construction branch cavern, comprising the following steps: S1: The steel-lined tiles are transported from outside the tunnel through the construction branch tunnel to the tile transfer station in the construction branch tunnel, and the tiles are unloaded from the truck using the top hanging point and transferred to the tile transfer trolley at the station, or the steel-lined tiles are directly transported from outside the tunnel through the construction branch tunnel to the tile transfer station using the tile transfer trolley; S2: Use the tile transfer trolley to transport the tiles horizontally into the gas storage cave, rotate the wheels of the tile transfer trolley 90°, and then continue to transport the tiles longitudinally to the bottom of the welding device arranged at the single-section welding station; S3: The tile is lifted up and fixed on the welding device by using the tile transfer trolley. The welding device drives the fixed tile to rotate. The tile transfer trolley then lifts up and fixes the next tile. The welding device continues to rotate and installs the next tile until all tiles are installed on the welding device to form a full circle steel liner section. S4: The assembly welding device rotates to rotate the longitudinal seam between the tiles to the top, and an automatic submerged arc welding device is installed on the top of the outer side of the steel liner section. The automatic submerged arc welding device automatically identifies the weld seam to weld the outer weld seam of the longitudinal seam; S5: After the welding of one longitudinal seam outer weld is completed, the automatic submerged arc welding device is removed, the welding assembly device is rotated so that the next longitudinal seam is at the top, the automatic submerged arc welding device is reinstalled and the longitudinal seam outer weld is automatically welded, and this step is repeated until the welding of all longitudinal seam outer welds is completed; S6: Move the adjustable roller frame to the bottom of the welding device, unload the welded single steel liner section from the welding device, and use two adjustable roller frames to lift and transport it to the large section welding station to wait for welding with the next steel liner section; S7: After the welding device completes the welding of the next single steel liner pipe section, the second steel liner pipe section is transported to the large section welding station by using an adjustable roller frame, and assembled with the previously welded single pipe section, and then the annular seams between the pipe sections are spot welded to temporarily fix the two pipe sections; S8: installing the automatic submerged arc welding device on the outer top of the steel liner pipe section, automatically welding the outer annular seam between the pipe sections by using the automatic submerged arc welding device, after the outer annular seam welding is completed, removing the automatic submerged arc welding device and reinstalling it on the inner bottom of the steel liner pipe section, automatically welding the inner annular seam between the pipe sections, or removing the automatic submerged arc welding device and reinstalling it on the inner bottom of the steel liner pipe section, automatically welding the inner annular seam between the pipe sections by using the automatic submerged arc welding device, after the inner annular seam welding is completed, removing the automatic submerged arc welding device and reinstalling it on the outer top of the steel liner pipe section, automatically welding the outer annular seam between the pipe sections; S9: Use the adjustable roller frame or steel pipe transport vehicle of the large section transport station to lift and transport the large section pipe section to the installation position in the gas storage cavern, lift the pipe section and align it for installation and welding of the installation annular seam; S10: Take the first section of the curved pipe above and below the curved sections on both sides as the first section to be installed, repeat the above steps until all the curved section sections are installed, and then continue to install all the straight pipe sections in the same way; S10: dismantle each workstation in the workshop on the left side of the tunnel and reinstall it to the right side of the construction branch tunnel, dismantle each workstation in the workshop on the right side of the tunnel and reinstall it to the left side of the construction branch tunnel, and then manufacture and install the remaining straight pipe section steel liner sections on the left and right sides respectively according to the same installation method as the previous steps; S11: After all pipe sections are installed, the equipment arranged at each workstation is removed from the construction branch hole and transported out; S12: The remaining pipe sections at the equipment installation location are manually adjusted and installed to complete the construction of the entire annular gas storage cave steel lining.

[0016] Preferably, after step S5, if the longitudinal seam needs to be welded with an internal weld, after all the external welds are welded, the longitudinal seam to be welded is rotated to the bottom by using a welding device, and an automatic submerged arc welding device is installed at the inner bottom of the steel liner section, and the internal weld of the longitudinal seam is welded by automatically identifying the weld by the automatic submerged arc welding device; After the welding of one longitudinal seam inner weld is completed, the automatic submerged arc welding device is removed, the welding device is rotated so that the next longitudinal seam is at the top, the automatic submerged arc welding device is reinstalled and the longitudinal seam inner weld is automatically welded, and this step is repeated until the welding of all longitudinal seam inner welds is completed.

[0017] Preferably, after step S8, the last welded large pipe section is transported to the large pipe section storage station by a roller frame and placed on a temporary support. The size inspection, shape inspection and weld flaw detection of the pipe section are carried out at the large pipe section storage station. Step S9 is performed after the pipe section passes the inspection.

[0018] Preferably, when the welding device adopts a rotary welding platform, step S3 can be replaced as follows: the rotary welding platform is in a horizontal state, and the tiles are successively hoisted to the rotary support of the rotary welding platform and fixed using the hoist at the top of the tunnel to form a full-circle steel liner section, and then the rotary support is lifted to a vertical state using the driving assembly.

[0019] In a third aspect, the present invention provides a method for installing a steel lining of an annular gas storage cavern, wherein a construction branch cavern is located at the junction of a curved section and a straight section, and two workshops in the caverns are respectively arranged on the same side of two straight pipe sections close to the construction branch caverns, comprising the following steps: S1: The steel-lined tiles are transported from outside the tunnel through the construction branch tunnel to the tile transfer station in the construction branch tunnel, and the tiles are unloaded from the truck using the top hanging point and transferred to the tile transfer trolley at the station, or the steel-lined tiles are directly transported from outside the tunnel through the construction branch tunnel to the tile transfer station using the tile transfer trolley; S2: Use the tile transfer trolley to transport the tiles horizontally into the gas storage cave, rotate the wheels of the tile transfer trolley 90°, and then continue to transport the tiles longitudinally to the bottom of the welding device arranged at the single-section welding station; S3: The tile is lifted up and fixed on the welding device by using the tile transfer trolley. The welding device drives the fixed tile to rotate. The tile transfer trolley then lifts up and fixes the next tile. The welding device continues to rotate and installs the next tile until all tiles are installed on the welding device to form a full circle steel liner section. S4: The assembly welding device rotates to rotate the longitudinal seam between the tiles to the top, and an automatic submerged arc welding device is installed on the top of the outer side of the steel liner section. The automatic submerged arc welding device automatically identifies the weld seam to weld the outer weld seam of the longitudinal seam; S5: After the welding of one longitudinal seam outer weld is completed, the automatic submerged arc welding device is removed, the welding assembly device is rotated so that the next longitudinal seam is at the top, the automatic submerged arc welding device is reinstalled and the longitudinal seam outer weld is automatically welded, and this step is repeated until the welding of all longitudinal seam outer welds is completed; S6: Move the adjustable roller frame to the bottom of the welding device, unload the welded single steel liner section from the welding device, and use two adjustable roller frames to lift and transport it to the large section welding station to wait for welding with the next steel liner section; S7: After the welding device completes the welding of the next single steel liner pipe section, the second steel liner pipe section is transported to the large section welding station by using an adjustable roller frame, and assembled with the previously welded single pipe section, and then the annular seams between the pipe sections are spot welded to temporarily fix the two pipe sections; S8: installing the automatic submerged arc welding device on the outer top of the steel liner pipe section, automatically welding the outer annular seam between the pipe sections by using the automatic submerged arc welding device, after the outer annular seam welding is completed, removing the automatic submerged arc welding device and reinstalling it on the inner bottom of the steel liner pipe section, automatically welding the inner annular seam between the pipe sections, or removing the automatic submerged arc welding device and reinstalling it on the inner bottom of the steel liner pipe section, automatically welding the inner annular seam between the pipe sections by using the automatic submerged arc welding device, after the inner annular seam welding is completed, removing the automatic submerged arc welding device and reinstalling it on the outer top of the steel liner pipe section, automatically welding the outer annular seam between the pipe sections; S9: Use the adjustable roller frame or steel pipe transport vehicle of the large section transport station to lift and transport the large section pipe section to the installation position in the gas storage cavern, lift the pipe section and align it for installation and welding of the installation annular seam; S10: Take the middle pipe section of the curved section far away from the construction branch tunnel as the first installation section, and install the curved section pipe sections from the first installation section to both sides simultaneously. After all the curved section pipe sections are installed, install the straight section pipe sections on both sides synchronously in the same way; S11: dismantle all workstations in the workshop on the inner side of the construction branch tunnel and evacuate the tunnel, then turn around the workshop on the outer side of the construction branch tunnel, and install the remaining straight pipe sections on the upper part and all the curved pipe sections on the other side in the same installation method as the previous steps; S12: After all pipe sections are installed, the equipment arranged at the workstation is removed from the construction branch hole and transported out; S13: The remaining pipe sections at the equipment installation location are manually adjusted and installed to complete the construction of the entire annular gas storage cave steel lining.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The annular gas storage cavern steel lining installation system provided by the present invention optimizes the construction process and flow through the reasonable arrangement of various workstations, forming a complete in-cave workshop system, realizing the mechanized and intelligent assembly line construction of the gas storage cavern steel lining from tiles to large pipe sections in the cave, reducing the construction time of each process, speeding up the construction progress, saving labor costs, and meeting the requirements of short project construction period. The annular gas storage cavern steel lining installation method provided by the present invention realizes the transfer of the pipe section manufacturing workshop or manufacturing system from outside the cave to inside the cave, so that the manufacturing and installation process of the pipe section in the cave is changed from the original manual construction to mechanized and automated construction, effectively reducing the manual workload and improving the construction efficiency and quality; the steel lining pipe sections are transported into the cave in the form of tiles for subsequent construction, reducing the excavation size of the construction branch tunnel, and also reducing the size of the transportation channel outside the cave, saving civil engineering costs; the automatic welding equipment is used to realize the automated construction of most welds in the cave, which can improve the welding construction efficiency and welding quality, and then effectively improve the construction period of the entire project. Explanation of the drawings Figure 1 This is a general layout diagram of the gas storage cave installation system described in an embodiment of the present invention.

[0021] Figure 2 This is a layout diagram of a workshop in a hole for the installation system described in an embodiment of the present invention.

[0022] Figure 3 This is the front view of the tile transfer installation described in an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the first construction steel lining installation according to an embodiment of the present invention (the construction branch hole is in the middle).

[0024] Figure 5 This is a schematic diagram of the steel lining installation after the equipment is turned around according to an embodiment of the present invention (the construction branch hole is in the middle).

[0025] Figure 6 This is a schematic diagram of the installation of the steel lining joint according to an embodiment of the present invention (the construction branch hole is in the middle).

[0026] Figure 7 This is a schematic diagram of the first construction steel lining installation according to an embodiment of the present invention (the construction branch hole is at the junction of the curved section and the straight section).

[0027] Figure 8 This is a schematic diagram of the steel lining installation after the equipment is turned around according to an embodiment of the present invention (the construction branch hole is at the junction of the curved section and the straight section).

[0028] Fig. 9 This is a schematic diagram of the installation of the steel lining joint according to an embodiment of the present invention (the construction branch hole is at the junction of the curved section and the straight section).

[0029] Fig.10 It is a structural schematic diagram of the rotary welding platform described in an embodiment of the present invention (vertical state).

[0030] Fig.11 for Fig.10 Side view of.

[0031] Fig.12 It is a structural schematic diagram of the rotary welding platform described in an embodiment of the present invention (horizontal state).

[0032] Markings in the figure: 1-gas storage cave, 2-construction branch cave, 3-track, 4-straight section steel lining, 5-curved section steel lining, 6-tile transfer station, 7-single section welding station, 8-large section welding station, 9-large section storage station, 10-large section transportation station, 11-multi-function trolley, 12-active multi-function trolley, 13-driven multi-function trolley, 14-circular assembly machine, 15-tile transfer trolley, 16-tile, 17-left starting section, 18-right starting section, 19-last section, 20-makeshift section, 21-curved section starting section, 22-rotating welding platform, 221-base, 222-horizontal cylinder, 223-support cylinder, 224-turning platform, 225-turntable, 226-rotating support, 227-twisted shaft. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0034] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0036] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0037] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0038] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0039] Example 1 The gas storage cave 1 is generally cylindrical, annular or a combination of the two. The cylindrical shape is generally cylindrical with both ends closed; the structure of the annular gas storage cave 1 is similar to the strip hole style, with curved sections at both ends and the middle connected by straight pipe sections on both sides to form a whole. Regardless of the structural form, it is composed of curved sections and straight sections, or only curved sections or straight sections.

[0040] When the annular gas storage cavern 1 is excavated, it is generally necessary to excavate a branch cavern 2 in the gas storage cavern 1 to connect the two straight pipe sections of the annular cavern for the convenience of construction. Generally, there are two excavation locations for the branch cavern 2. One is that the branch cavern 2 is excavated in the middle of the gas storage cavern 1, and the other is that the branch cavern 2 is excavated at the intersection of the curved section and the straight section of the gas storage cavern 1. The installation system provided in this solution is mainly for the installation of the steel lining of the annular gas storage cavern 1 (including the curved section steel lining 5 and the straight section steel lining 4), including 5 main types of workstations: tile transfer station 6, single section assembly welding station 7, large section assembly welding station 8, large section storage station 9 and large section transportation station 10, such as Figure 1-Figure 2 shown.

[0041] like Figure 3 As shown, the tile transfer station 6 is located in the construction branch tunnel 2, and this station mainly completes the lateral and longitudinal transfer of tiles 16. A tile transfer trolley 15 can be arranged (in some embodiments, a track 3 can be provided in the tunnel, and the tile transfer trolley 15 can move along the track 3. In other embodiments, the track 3 may not be provided). The tiles 16 can be transferred to the single-section welding station 7, and a tile 16 unloading lifting point is arranged on the top for unloading the tiles 16 after being transported into the tunnel. Another preferred scheme is that if the tile transfer trolley 15 directly transfers the tiles 16 into the tunnel from outside the tunnel, then there is no need to arrange an unloading lifting point on the top.

[0042] The single-section welding station 7 can be equipped with a welding device, through which the tiles 16 are assembled into a single-section steel liner section. The tiles 16 are automatically welded at the station using an automatic submerged arc welding device for longitudinal seams. The single-section welding station 7 is located in the main cave of the gas storage cave 1 and close to the construction branch cave 2.

[0043] The welding device can be a rounding machine 14, such as Figure 2-3 As shown, for example, the steel pipe assembly welding device (ie, the round assembly machine 14) disclosed in patent publication number CN104308413A.

[0044] The welding device can also be a rotary welding platform 22, such as Figure 10-12 As shown, it mainly includes a base 221, a horizontal cylinder 222, a supporting cylinder 223, a flip platform 224, a rotating disk 225, a rotating support 226, and a hinge shaft 227. The flip platform 224 is hinged to the base 221 through the hinge shaft 227. The flip platform 224 can be driven to flip under the drive of the driving component, thereby achieving the following Fig.10 The vertical state shown and Fig.12 The rotating disk 225 and the rotating support 226 are used to assemble the tiles 16 into a single steel liner section.

[0045] The driving assembly includes a horizontal cylinder 222 and a supporting cylinder 223. One end of the horizontal cylinder 222 is fixed to the base 221, and the other end is movably installed on the base 221, 1, and is connected to one end of the supporting cylinder 223 through a connecting shaft arranged along the front and rear directions. The other end of the supporting cylinder 223 is hinged to the flip platform 221.

[0046] The large section assembly welding station 8 is arranged close to the single section assembly welding station 7 and is located in front of the single section assembly welding station 7 (in this scheme, the construction side of the branch tunnel 2 is the rear, and the main tunnel side is the front). The large section assembly welding station 8 is mainly used to assemble the single section steel liner pipe sections assembled by the single section assembly welding station 7 into large steel lining sections. Both straight sections and curved sections can be welded. This station can be arranged with 4 adjustable roller frames (also called multi-functional trolleys 11) disclosed in patent publication number CN102717223A. Generally, 2 active multi-functional trolleys 12 and 2 driven multi-functional trolleys 13 can be arranged during construction.

[0047] The large section transport station 10 is located in front of the large section assembly welding station 8. This station is mainly used to transport the steel lining large section welded by the large section assembly welding station 8 to the installation position for installation. Two multifunctional trolleys 11 identical to the large section assembly welding station 8 can generally be arranged at this station, which can be active or driven. If it is only used for transportation, a driven roller frame can be preferably used, or a group of steel pipe transport vehicles disclosed in patent publication number CN110525906A can be arranged. This transport vehicle can facilitate the transportation of pipe sections through flat bends. Two roller frames or a group of steel pipe transport vehicles can be used to transport the steel lining pipe sections to the location and perform auxiliary installation. In order to facilitate the transfer of pipe sections between different roller racks, temporary supports can be arranged at this workstation to support the steel liner pipe sections. After the roller rack at the large section welding station 8 transports the pipe section from the large section welding station 8 to this workstation, it is placed on the temporary support and then the roller rack returns to the large section welding station 8. The roller rack at the large section transport station 10 is then used to lift and transport the steel liner pipe section again.

[0048] Another preferred solution is that no additional roller frame is arranged at the large section transport station 10. After the large section of the steel lining is welded, the two multifunctional trolleys 11 at the large section welding station 8 are directly used to transport the large section of the steel lining to the installation station for installation of the steel lining pipe section. However, this method cannot simultaneously weld the large section of the steel lining during transportation.

[0049] Another preferred solution is to set up a large section storage station 9 between the large section assembly welding station 8 and the large section transportation station 10. This station only needs to arrange temporary support and is used to temporarily store a large steel lining section assembled and welded by the large section assembly welding station 8. This station can be used to perform weld inspection, size inspection, weld repair and other operations on the large steel lining section, which can optimize the overall operation process and form an assembly line operation. This station is recommended to be preferably arranged during construction.

[0050] All the above workstations are grouped together to form an in-tunnel workshop. Two in-tunnel workshops can be arranged in the annular gas storage tunnel 1, one on the left and one on the right, respectively located at the intersection of the two straight pipe sections of the construction branch tunnel 2 and the annular gas storage tunnel 1.

[0051] Example 2 In this embodiment, in order to make the construction of the installation system more standardized and faster, all the steel liners of the gas storage caverns 1 are transported into the underground caverns for construction in the form of tiles 16, and the stiffening rings except for the longitudinal joints have been pre-installed on the steel lining tiles 16. In order to speed up the construction progress, at least two in-cave workshops are generally arranged for synchronous construction in each annular cavern.

[0052] The installation method when the construction branch tunnel 2 is located in the middle of the gas storage tunnel 1 is as follows: Before construction, one workshop in the tunnel is first arranged on the left side of the construction branch tunnel 2, and the other workshop in the tunnel is arranged on the right side of the construction branch tunnel 2, so that the two workshops in the tunnel can simultaneously carry out the manufacture and installation of the left and right steel liner pipe sections. During construction, the curved pipe sections on the left and right sides of the gas storage tunnel 1 are first manufactured and installed, and then the straight pipe sections on the left and right sides of the construction branch tunnel 2 are simultaneously manufactured and installed. Then the workshop in the tunnel is turned around to simultaneously manufacture and install the straight pipe sections on the other side of the construction branch tunnel 2, and finally the joint section 20 is manually installed.

[0053] The construction steps of the entire installation system are as follows: 1. The steel lining of the gas storage cavern 1 is transported from outside the cavern through the construction branch cavern 2 to the tile transfer station 6 inside the construction branch cavern 2. The tiles 16 are unloaded from the truck using the top hanging point and transferred to the tile transfer trolley 15 at the station. Alternatively, the steel lining tiles 16 are directly transported from outside the cavern through the construction branch cavern 2 to the tile transfer station 6 using the tile transfer trolley 15. The tile transfer trolley 15 can move in multiple directions. According to the actual working conditions on site, a maximum of 3 to 4 tiles 16 can be transferred at a time. 2. Use the tile transfer trolley 15 to transport the tile 16 horizontally into the gas storage cave 1, rotate the wheels of the tile transfer trolley 15 by 90 degrees, and then continue to transport the tile 16 longitudinally to the bottom of the welding device arranged at the single-section welding station 7; 3. Use the tile transfer trolley 15 to lift up the tile 16 and install it on the welding device. The welding device drives the fixed tile 16 to rotate a certain angle. The tile transfer trolley 15 then lifts up and installs the next tile 16. The welding device continues to rotate and installs the next tile 16 until all tiles 16 are installed on the welding device to form a full circle steel liner section (both the rounding machine 14 and the rotary welding platform 22 are applicable to this method); 4. The assembly welding device rotates to rotate the longitudinal seam between the tiles 16 to the top, and the automatic submerged arc welding device is installed on the top of the outer side of the steel liner section. The automatic submerged arc welding device automatically identifies the weld seam and welds the outer weld seam of the longitudinal seam; 5. After the welding of one longitudinal seam outer weld is completed, remove the automatic submerged arc welding device, rotate the welding device so that the next longitudinal seam is at the top, reinstall the automatic submerged arc welding device and automatically weld the longitudinal seam outer weld, repeat this step until all longitudinal seam outer welds are welded; 6. If the longitudinal seam needs to be welded with an internal weld, after all the external welds are welded, use the welding device to rotate the longitudinal seam to be welded to the bottom, install the automatic submerged arc welding device on the inner bottom of the steel liner section, and use the automatic submerged arc welding device to automatically identify the weld to weld the internal weld of the longitudinal seam; 7. After the welding of one longitudinal seam is completed, the automatic submerged arc welding device is removed, the welding device is rotated so that the next longitudinal seam is at the top, the automatic submerged arc welding device is reinstalled and the longitudinal seam weld is automatically welded, and this step is repeated until all longitudinal seam welds are completed; 8. Move two multifunctional trolleys (one active and one driven) to the bottom of the welding device, unload the welded single steel liner section from the welding device, and use the two multifunctional trolleys 11 to lift and transport it to the large section welding station 8 to wait for welding with the next steel liner section; 9. After the welding device completes the welding of the next single steel liner pipe section, use the other two multifunctional trolleys 11 to transport the second steel liner pipe section to the large section welding station 8, and assemble it with the previously welded single pipe section, and then spot weld the annular seams between the pipe sections to temporarily fix the two pipe sections; 10. Install the automatic submerged arc welding device on the outer top of the steel liner pipe section. The automatic submerged arc welding device can be used to automatically weld the outer annular seam between the pipe sections. After the outer annular seam welding is completed, remove the automatic submerged arc welding device and reinstall it on the inner bottom of the steel liner pipe section to automatically weld the inner annular seam between the pipe sections. Alternatively, the inner annular seam can be welded first and then the outer annular seam. 11. After two single-section pipe sections are welded together to form a large pipe section, they can be welded together with subsequent single-section pipe sections to form a longer large pipe section. In this scheme, at most four single-section steel liner pipe sections can be welded together to form a large straight pipe section, or at most three single-section steel liner pipe sections can be welded together to form a large curved pipe section; 12. Use two roller racks to transport the last welded large pipe section to the large pipe section storage station 9 and place it on the temporary support of the station, where the pipe section size inspection, appearance inspection, weld flaw detection and other operations are carried out; 13. After the pipe section has passed the inspection, the steel pipe transport vehicle or two roller racks at the transport station are used to lift the large pipe section to the installation position in the gas storage cavern 1. The roller arms of the roller racks are used to lift the pipe section and align it for installation and welding of the installation annular seam. When transporting the bent pipe, the steel pipe transport vehicle described above is suitable for plane bending. 14. First, take the first section of the upper and lower curved pipes on both sides as the first section (i.e. the left first section 17 and the right first section 18), repeat the above steps to install all the curved pipe sections, and then continue to install all the straight pipe sections in the same way (such as Figure 4 as shown), according to Figure 4 The arrow direction is installed from the first installation section to the last installation section 19; 15. Remove all workstations in the workshop on the left side of the tunnel and reinstall them on the right side of the construction branch tunnel 2. Remove all workstations in the workshop on the right side of the tunnel and reinstall them on the left side of the construction branch tunnel 2. Then, follow the same installation method as in the previous steps to manufacture and install the remaining straight pipe sections on the left and right sides (such as Figure 5 ), Figure 5 The middle arrow indicates the installation direction; 16. After all pipe sections are installed, remove the equipment arranged at each workstation from the construction branch hole 2 and transport it out; 17. Finally, the remaining pipe sections at the equipment installation location are manually adjusted and installed (i.e., the installation of the fitting section 20) so that the steel lining of the entire annular gas storage cave 1 is completed (such as Figure 6 as shown).

[0054] In the case where the welding device adopts a rotary welding platform, step S3 can be replaced by: firstly placing the rotary welding platform 22 in a horizontal state, such as Fig.12 As shown, the tiles 16 are sequentially hoisted and fixed to the rotary support 226 of the rotary welding platform 22 by using the hoist at the top of the tunnel to form a full circle of steel liner pipe section, and then the rotary support 226 is lifted to a vertical state by using the driving assembly. At this time, the rotary welding platform 22 is in a vertical state, as shown in FIG. Figure 10-11 shown.

[0055] Example 3 The installation method when the construction branch tunnel 2 is located at the junction of the curved section and the straight section is as follows: Before construction, the two in-tunnel workshops are first arranged on the same side of the two straight pipe sections near the construction branch tunnel 2, so that the two in-tunnel workshops can simultaneously manufacture and install the steel liner pipe sections of the straight pipe sections and the curved pipe sections. During construction, the curved pipe sections on the side of the gas storage tunnel 1 chamber away from the construction branch tunnel 2 are first manufactured and installed, and the manufacturing and installation are carried out from the middle of the curved section to both sides in sequence until the installation of the straight pipe section is completed. Then all the equipment arranged in the in-tunnel workshop on the inner side of the construction branch tunnel 2 is withdrawn, and the equipment arranged in the in-tunnel workshop on the outer side is turned around, and the small number of straight pipe sections and the entire curved section on the remaining side of the construction branch tunnel 2 are manufactured and installed in the outer workshop, and finally the makeshift section 20 is installed manually.

[0056] The construction steps of the entire installation system are as follows: 1. The manufacturing steps of the steel pipe of this scheme are the same as the aforementioned steps 1 to 13; 2. Take the middle pipe section of the bend section far away from the construction branch hole 2 as the bend section starting section 21, and install the bend section pipe sections from the bend section starting section 21 to both sides simultaneously. After all the bend section pipe sections are installed, install the straight section pipe sections on both sides in the same way (such as Figure 7 ), Figure 7 The middle arrow indicates the installation direction; 3. Remove all workstations in the workshop on the inner side of the construction branch tunnel 2 and evacuate the tunnel. Then turn the workshop on the outer side of the construction branch tunnel 2 around and install the remaining few straight pipe sections on the upper part and all the curved pipe sections on the other side in the same way as in the previous steps (such as Figure 8 ), Figure 8 The middle arrow indicates the installation direction; 4. After all pipe sections are installed, remove the equipment arranged at the workstation from the construction branch tunnel 2 and transport it out; 5. Finally, the remaining pipe sections at the equipment installation location are manually adjusted and installed (i.e., the installation of the make-up section 20) so that the steel lining of the entire annular gas storage cave 1 is completed (such as Fig. 9 as shown).

[0057] When the gas storage cavern 1 has only a straight section, the equipment layout and construction method in the cavern are the same as the straight section construction described above. When the gas storage cavern 1 is annular and has multiple, the equipment and workstation layout of each individual annular gas storage cavern 1 can be arranged according to the annular installation method described above.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An annular gas storage cave steel liner installation system, characterized in that: It includes at least one in-tunnel workshop, each of which includes: The tile transfer station is located in the construction branch tunnel and is used to transfer tiles to the single-section welding station; The single-section welding station is located in the main hole of the gas storage tunnel and close to the construction branch hole. It is used to assemble the tiles into a single steel liner section. The large section welding station is located in the main tunnel of the gas storage tunnel and close to the single section welding station, and is used to weld three or more single steel liner sections into a large steel liner section; The large section transport station is located in the main tunnel of the gas storage tunnel and close to the large section assembly and welding station. It is used to transport the welded large steel lining sections to the installation location for installation.

2. The annular gas storage cavern steel liner installation system according to claim 1 is characterized in that: The tile transfer station includes at least one tile transfer trolley for the lateral and longitudinal transfer of tiles; and / or, the single-section assembly welding station can use an automatic submerged arc welding device to automatically weld the longitudinal seams, and assemble the tiles into a single-section steel liner section through the welding device; and / or, the large-section assembly welding station is located in front of the single-section assembly welding station, and includes at least one adjustable roller frame.

3. The annular gas storage cavern steel liner installation system according to claim 2 is characterized in that: The large section transport station is located in front of the large section assembly welding station, and includes at least one set of adjustable roller frames or steel pipe transport vehicles; and / or, the assembly welding device includes a circular assembly machine and a rotary assembly welding platform.

4. The annular gas storage cavern steel liner installation system according to claim 3 is characterized in that: The large section transport station is provided with a temporary support for supporting the large steel lining section.

5. The annular gas storage cavern steel liner installation system according to claim 1 is characterized in that: Also includes: The large section storage station is located between the large section assembly welding station and the large section transportation station, and is used to temporarily store the large steel lining sections that have been welded at the large section assembly welding station.

6. The annular gas storage cavern steel liner installation system according to any one of claims 1 to 5, characterized in that: It includes two in-tunnel workshops, which are respectively located at the intersection of two straight pipe sections of the construction branch tunnel and the annular gas storage tunnel.

7. A method for installing a steel lining of an annular gas storage cavern, characterized in that: A circular gas storage cavern steel lining installation system as described in any one of claims 1 to 6 is used, wherein the construction branch cavern is located in the middle of the gas storage cavern, one cavern workshop is arranged on the left side of the construction branch cavern, and another cavern workshop is arranged on the right side of the construction branch cavern, comprising the following steps: S1: The steel-lined tiles are transported from outside the tunnel through the construction branch tunnel to the tile transfer station in the construction branch tunnel, and the tiles are unloaded from the truck using the top hanging point and transferred to the tile transfer trolley at the station, or the steel-lined tiles are directly transported from outside the tunnel through the construction branch tunnel to the tile transfer station using the tile transfer trolley; S2: Use the tile transfer trolley to transport the tiles horizontally into the gas storage cave, rotate the wheels of the tile transfer trolley 90°, and then continue to transport the tiles longitudinally to the bottom of the welding device arranged at the single-section welding station; S3: The tile is lifted up and fixed on the welding device by using the tile transfer trolley. The welding device drives the fixed tile to rotate. The tile transfer trolley then lifts up and fixes the next tile. The welding device continues to rotate and installs the next tile until all tiles are installed on the welding device to form a full circle steel liner section. S4: The assembly welding device rotates to rotate the longitudinal seam between the tiles to the top, and an automatic submerged arc welding device is installed on the top of the outer side of the steel liner section. The automatic submerged arc welding device automatically identifies the weld seam to weld the outer weld seam of the longitudinal seam; S5: After the welding of one longitudinal seam outer weld is completed, the automatic submerged arc welding device is removed, the welding assembly device is rotated so that the next longitudinal seam is at the top, the automatic submerged arc welding device is reinstalled and the longitudinal seam outer weld is automatically welded, and this step is repeated until the welding of all longitudinal seam outer welds is completed; S6: Move the adjustable roller frame to the bottom of the welding device, unload the welded single steel liner section from the welding device, and use two adjustable roller frames to lift and transport it to the large section welding station to wait for welding with the next steel liner section; S7: After the welding device completes the welding of the next single steel liner pipe section, the second steel liner pipe section is transported to the large section welding station by using an adjustable roller frame, and assembled with the previously welded single pipe section, and then the annular seams between the pipe sections are spot welded to temporarily fix the two pipe sections; S8: installing an automatic submerged arc welding device on the outer top of the steel liner pipe section, automatically welding the outer annular seam between the pipe sections by using the automatic submerged arc welding device, after the outer annular seam welding is completed, removing the automatic submerged arc welding device and reinstalling it on the inner bottom of the steel liner pipe section, automatically welding the inner annular seam between the pipe sections, or removing the automatic submerged arc welding device and reinstalling it on the inner bottom of the steel liner pipe section, automatically welding the inner annular seam between the pipe sections by using the automatic submerged arc welding device, after the inner annular seam welding is completed, removing the automatic submerged arc welding device and reinstalling it on the outer top of the steel liner pipe section, automatically welding the outer annular seam between the pipe sections; S9: Use the adjustable roller frame or steel pipe transport vehicle of the large section transport station to lift and transport the large section pipe section to the installation position in the gas storage cavern, lift the pipe section and align it for installation and welding of the installation annular seam; S10: Take the first section of the curved pipe above and below the curved sections on both sides as the first section to be installed, repeat the above steps until all the curved section sections are installed, and then continue to install all the straight pipe sections in the same way; S10: dismantle each workstation in the workshop on the left side of the tunnel and reinstall it to the right side of the construction branch tunnel, dismantle each workstation in the workshop on the right side of the tunnel and reinstall it to the left side of the construction branch tunnel, and then manufacture and install the remaining straight pipe section steel liner sections on the left and right sides respectively according to the same installation method as the previous steps; S11: After all pipe sections are installed, the equipment arranged at each workstation is removed from the construction branch hole and transported out; S12: The remaining pipe sections at the equipment installation location are manually adjusted and installed to complete the construction of the entire annular gas storage cave steel lining.

8. The method for installing a steel lining of an annular gas storage cavern according to claim 7, characterized in that: After step S5, if the longitudinal seam needs to be welded with an internal weld, after all the external welds are welded, the longitudinal seam to be welded is rotated to the bottom by using the assembly welding device, and an automatic submerged arc welding device is installed at the inner bottom of the steel liner section, and the internal weld of the longitudinal seam is welded by the automatic submerged arc welding device to automatically identify the weld; After the welding of one longitudinal seam inner weld is completed, the automatic submerged arc welding device is removed, the welding device is rotated so that the next longitudinal seam is at the top, the automatic submerged arc welding device is reinstalled and the longitudinal seam inner weld is automatically welded, and this step is repeated until the welding of all longitudinal seam inner welds is completed.

9. The method for installing a steel lining of an annular gas storage cavern according to claim 7, characterized in that: After step S8, the last welded large pipe section is transported to the large pipe section storage station by a roller frame and placed on a temporary support. The size, shape and weld flaw detection of the pipe section are carried out at the large pipe section storage station. After the pipe section passes the inspection, step S9 is performed.

10. The method for installing a steel lining of an annular gas storage cavern according to claim 7, characterized in that: When the welding device adopts a rotary welding platform, step S3 can be replaced as follows: the rotary welding platform is in a horizontal state, and the tiles are hoisted and fixed to the rotary support of the rotary welding platform in sequence by using the hoist at the top of the tunnel to form a full circle of steel liner section, and then the rotary support is lifted to a vertical state by using the driving assembly.

11. A method for installing a steel lining of an annular gas storage cavern, characterized in that: A steel lining installation system for an annular gas storage cavern as described in any one of claims 1 to 6 is used, the construction branch cavern is located at the junction of the curved section and the straight section, and the two cavern workshops are respectively arranged on the same side of the two straight pipe sections close to the construction branch cavern, comprising the following steps: S1: The steel-lined tiles are transported from outside the tunnel through the construction branch tunnel to the tile transfer station in the construction branch tunnel, and the tiles are unloaded from the truck using the top hanging point and transferred to the tile transfer trolley at the station, or the steel-lined tiles are directly transported from outside the tunnel through the construction branch tunnel to the tile transfer station using the tile transfer trolley; S2: Use the tile transfer trolley to transport the tiles horizontally into the gas storage cave, rotate the wheels of the tile transfer trolley 90°, and then continue to transport the tiles longitudinally to the bottom of the welding device arranged at the single-section welding station; S3: The tile is lifted up and fixed on the welding device by using the tile transfer trolley. The welding device drives the fixed tile to rotate. The tile transfer trolley then lifts up and fixes the next tile. The welding device continues to rotate and installs the next tile until all tiles are installed on the welding device to form a full circle steel liner section. S4: The assembly welding device rotates to rotate the longitudinal seam between the tiles to the top, and an automatic submerged arc welding device is installed on the top of the outer side of the steel liner section. The automatic submerged arc welding device automatically identifies the weld seam to weld the outer weld seam of the longitudinal seam; S5: After the welding of one longitudinal seam outer weld is completed, the automatic submerged arc welding device is removed, the welding assembly device is rotated so that the next longitudinal seam is at the top, the automatic submerged arc welding device is reinstalled and the longitudinal seam outer weld is automatically welded, and this step is repeated until the welding of all longitudinal seam outer welds is completed; S6: Move the adjustable roller frame to the bottom of the welding device, unload the welded single steel liner section from the welding device, and use two adjustable roller frames to lift and transport it to the large section welding station to wait for welding with the next steel liner section; S7: After the welding device completes the welding of the next single steel liner pipe section, the second steel liner pipe section is transported to the large section welding station by using an adjustable roller frame, and assembled with the previously welded single pipe section, and then the annular seams between the pipe sections are spot welded to temporarily fix the two pipe sections; S8: installing an automatic submerged arc welding device on the outer top of the steel liner pipe section, automatically welding the outer annular seam between the pipe sections by using the automatic submerged arc welding device, after the outer annular seam welding is completed, removing the automatic submerged arc welding device and reinstalling it on the inner bottom of the steel liner pipe section, automatically welding the inner annular seam between the pipe sections, or removing the automatic submerged arc welding device and reinstalling it on the inner bottom of the steel liner pipe section, automatically welding the inner annular seam between the pipe sections by using the automatic submerged arc welding device, after the inner annular seam welding is completed, removing the automatic submerged arc welding device and reinstalling it on the outer top of the steel liner pipe section, automatically welding the outer annular seam between the pipe sections; S9: Use the adjustable roller frame or steel pipe transport vehicle of the large section transport station to lift and transport the large section pipe section to the installation position in the gas storage cavern, lift the pipe section and align it for installation and welding of the installation annular seam; S10: Take the middle pipe section of the curved section far away from the construction branch tunnel as the first installation section, and install the curved section pipe sections from the first installation section to both sides simultaneously. After all the curved section pipe sections are installed, install the straight section pipe sections on both sides synchronously in the same way; S11: dismantle all workstations in the workshop on the inner side of the construction branch tunnel and evacuate the tunnel, then turn around the workshop on the outer side of the construction branch tunnel, and install the remaining straight pipe sections on the upper part and all the curved pipe sections on the other side in the same installation method as the previous steps; S12: After all pipe sections are installed, the equipment arranged at the workstation is removed from the construction branch hole and transported out; S13: The remaining pipe sections at the equipment installation location are manually adjusted and installed to complete the construction of the entire annular gas storage cave steel lining.

12. The method for installing a steel lining of an annular gas storage cavern according to claim 11, characterized in that: When the welding device adopts a rotary welding platform, step S3 can be replaced as follows: the rotary welding platform is in a horizontal state, and the tiles are hoisted and fixed to the rotary support of the rotary welding platform in sequence by using the hoist at the top of the tunnel to form a full circle of steel liner section, and then the rotary support is lifted to a vertical state by using the driving assembly.

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