Supporting leg lifting construction device of fuel cabin containment system platform and technology of supporting leg lifting construction device

Abstract

The invention relates to a supporting leg lifting construction device of a fuel cabin containment system platform and a technology thereof, and relates to the technical field of supporting leg lifting construction.The supporting leg lifting construction device comprises an adjustable base, the top of the adjustable base is connected with a vertical rod, the top end of the vertical rod is connected with an inner inserting pipe, and the top of the inner inserting pipe is also provided with a vertical rod in an embedded mode; connecting discs are welded to the vertical rods in the axial direction, horizontal rods are arranged in the middles of the vertical rods, inclined rods are arranged on one sides of the horizontal rods, inclined buckle connectors are connected to the two ends of each inclined rod through bolts, and the ends, away from the inclined rods, of the inclined buckle connectors are connected with the connecting discs through wedge-shaped bolts. A supporting leg reinforcing and lifting unit is arranged on one side of the adjustable base; the supporting leg reinforcing and lifting unit plays an auxiliary supporting role, supporting leg lifting work is facilitated, and it is guaranteed that when the supporting legs of the socket and spigot type disc buckle type construction platform are lifted, operation is convenient and fast, the mounting and dismounting period is short, the overall stability is high, and the safety risk is low.

Description

Technical Field

[0001] The present application relates to the technical field of outrigger lifting construction, and in particular to an outrigger lifting construction device and a process thereof for a fuel tank containment system platform. Background Art

[0002] The most commonly used technology for LNG fuel tank containment system technology is Mark III technology. The LNG fuel tank containment system construction platform must meet the process and technological requirements of the fuel tank containment system and stages. The construction process of the LNG fuel tank containment system mainly includes: marking, positioning stud installation, insulation board installation, secondary shielding installation, top bridge board installation, corrugated board installation and air tightness testing. Conventional temporary reinforcement and installation methods use steel pipe fasteners for reinforcement, which is complicated to operate, has a long reinforcement period, and the temporary reinforcement structure is unstable, which is prone to local instability and collapse during construction. Therefore, a leg lifting process is required to solve the process coordination during the installation of the existing containment system: In order to solve the problems of complex construction operation, long cycle and low efficiency of conventional temporary disassembly and assembly in the installation of LNG fuel tank containment system, and to avoid local instability and collapse of scaffolding, the current outrigger reinforcement lifting unit often does not have the mechanism for auxiliary support and movement. Summary of the invention

[0003] The purpose of this application is to provide a leg lifting construction device and process for a fuel tank containment system platform.

[0004] In the first aspect, the present application provides a fuel tank containment system platform outrigger lifting construction device and its process adopts the following technical solutions: A leg lifting construction device for a fuel tank containment system platform comprises an adjustable base, the bottom of the adjustable base is connected to a protective wooden pier, the top of the adjustable base is connected to a vertical pole, the top of the vertical pole is connected to an inner tube, the top of the inner tube is also embedded with a vertical pole, the vertical pole is welded with a connecting plate arranged in the axial direction, horizontal rods are arranged in the middle between multiple groups of vertical poles, both ends of the horizontal rods are welded with buckle joints, the buckle joints are connected to the connecting plate by a wedge-shaped pin, an inclined rod is arranged on one side of the horizontal rod, both ends of the inclined rod are connected to the inclined buckle joints by bolts, and the end of the inclined buckle joint away from the inclined rod is also connected to the connecting plate by a wedge-shaped pin.

[0005] By adopting the above technical solution, the adjustable base plays the role of a supporting base, and the bottom end is a steel plate. The round holes on the steel plate are used to install expansion bolts to connect to the ground, providing a safe and reliable foundation for the stair tower. The upper and lower vertical poles are fixed by the inner insert pipe, thereby realizing the function of an adjustable multi-layer scaffolding. At the same time, the verticality of the frame is ensured by the inner insert pipe. The connecting plate plays a connecting role and can be connected to the buckle joint through the wedge-shaped pin, so as to facilitate the installation and disassembly of the horizontal rod. The wedge-shaped pin is made by stamping steel plate, and its own inclination ensures that the wedge-shaped pin can be self-locking after being inserted into the connecting plate. The horizontal rod and the inclined rod cooperate with each other to improve the stability of the construction platform of the enclosure system.

[0006] A leg reinforcement lifting unit is provided on one side of the adjustable base, and the leg reinforcement lifting unit includes a truss, a truss support frame, a No. 2 connecting plate, a starting base and a hydraulic lifting device. The bottom of the truss is connected to the truss support frame, the bottom end of the truss support frame is connected to the starting base, and the bottom end of the starting base is connected to the hydraulic lifting device.

[0007] By adopting the above technical scheme, the outrigger reinforcement lifting unit plays the role of auxiliary support, which is convenient for the outrigger lifting work. The truss is made of welded cast steel at both ends of the upper and lower chords. The vertical and diagonal web members inside the truss are connected to the upper and lower chords by welding, thereby enhancing the pressure-bearing capacity of the truss. The starting base plays a connecting support role. The hydraulic lifting device is composed of an adjustable base bottom plate and a hydraulic jack. The hydraulic jack is used to lift and lower the outrigger reinforcement lifting unit so that the load of the vertical poles of the leg replacement part is fully borne by the outrigger reinforcement lifting unit, thereby facilitating the removal of the vertical poles and horizontal poles, diagonal poles and the short vertical poles and adjustable base below the leg replacement part, so as to facilitate the installation of the insulating board, thereby ensuring that the operation of the socket-type disc-type construction platform is convenient when lifting the outriggers, the installation and disassembly cycle is short, the overall stability is strong, and the safety risk is low.

[0008] The hydraulic lifting device includes an adjustable base bottom plate and a hydraulic jack. The bottom of the adjustable base bottom plate is connected to the hydraulic jack. The truss support frame and the middle outer wall of the truss are arranged with No. 2 connecting plates. A short horizontal rod is arranged between the truss and the vertical pole on one side. Both ends of the short horizontal rod are provided with No. 2 buckle joints. Two groups of No. 2 buckle joints are respectively connected to the No. 2 connecting plate and the connecting plate through pins. Short steel pipes are arranged between multiple groups of short horizontal rods. The two ends of the short steel pipes are respectively connected to the truss and the vertical pole through cross fasteners.

[0009] By adopting the above technical solution, the leg reinforcement lifting unit is firmly connected to the construction platform of the enclosure system through the connection of multiple groups of short horizontal rods and short steel pipes, thereby bearing the load of the vertical poles of the leg replacement part.

[0010] A cross bar is arranged in the middle of the truss support frame, and the cross bar is connected to the truss support frame through a No. 2 connecting plate. The outer walls of both sides of the cross bar at the top are sleeved with connecting tubes, and the outer wall of one side of the connecting tube is connected to a connecting rod.

[0011] By adopting the above technical solution, the cross bar plays a role in assisting in strengthening the truss support frame. At the same time, because it is connected through the No. 2 connecting plate, the cross bar can be disassembled and installed. At the same time, the connecting tube on the outer wall of the cross bar can perform axial translation movement while rotating the outer wall of the cross bar, so as to adjust the position of the connecting rod to perform auxiliary support at different positions.

[0012] The bottom end of the connecting rod is connected to a threaded barrel through a bearing, the bottom inner wall of the threaded barrel is threadedly connected to a threaded support rod, the top outer wall of the threaded support rod is provided with a barrel groove, a limiting rod is connected to the center of the bottom end of the connecting rod, and the bottom end of the limiting rod passes through the threaded barrel and is embedded in the barrel groove.

[0013] By adopting the above technical solution, the threaded barrel is twisted, and the threaded barrel rotates to drive the threaded support rod to be raised and lowered so that the bottom auxiliary roller contacts the ground to play an auxiliary support role. At the same time, the auxiliary roller can facilitate the auxiliary movement of the leg reinforcement lifting unit. The limit rod and the barrel groove play a limiting role on the threaded support rod to prevent the threaded support rod from rotating with the rotation of the threaded barrel.

[0014] The outer walls on both sides of the limit rod are provided with sliding grooves, the inner walls on both sides of the barrel groove are connected with sliding blocks, the sliding blocks are embedded in the sliding grooves, the bottom end of the threaded support rod is connected with an auxiliary roller, and the bottom outer wall of the threaded support rod is connected with a connecting buckle.

[0015] By adopting the above technical solution, the slider is embedded in the slide groove so that the threaded support rod can slide and rise and fall along the direction of the slide groove, the auxiliary roller can play an auxiliary movement and auxiliary support role, and a locking device is provided in the auxiliary roller to lock and thus play a supporting role. The connecting buckle is an arc buckle, and the principle is similar to the cross buckle and can be connected to the column structure. Through the connecting buckle, it can be connected to the chord of the truss, so as to assist in supporting the truss with the threaded tube and the threaded support rod.

[0016] The outer wall of the cross bar at the top is arranged with limiting grooves, the inner wall of the connecting tube is provided with an active cavity, the inside of the active cavity is provided with a top block, and one end of the top block is embedded in the limiting groove.

[0017] By adopting the above technical solution, the top block is embedded in the limiting groove so that the connecting tube is fixed to the outer wall of the cross bar, thereby fixing the threaded tube and the threaded support rod to avoid arbitrary rotation during the auxiliary support process.

[0018] Springs are connected to both sides of one end of the top block away from the limiting groove, and one end of the spring away from the top block abuts against the inner wall of the active cavity.

[0019] By adopting the above technical solution, the top block is always embedded in the limiting groove due to the resilience of the spring.

[0020] A pull rod is arranged in the middle of the two groups of springs, the pull rod is connected to the top block, and one end of the pull rod away from the top block passes through a connecting tube and is connected to the pull block.

[0021] By adopting the above technical solution, when the threaded barrel and the threaded support rod need to be adjusted, the pull block can be pulled to drive the pull rod to perform translational movement. The movement of the pull rod drives the top block to move out of the limiting groove, thereby facilitating the rotation and movement of the threaded barrel and the threaded support rod. When the threaded barrel and the threaded support rod are rotated to one side of the truss, they can be connected to the chord of the truss through the connecting buckle, so that the threaded barrel and the threaded support rod can provide auxiliary support to the truss, thereby achieving the effect of replaceable support between the truss and the truss support frame in different situations.

[0022] On the other hand, the present application also provides a leg lifting construction process for a liquefied gas fuel tank containment system platform, comprising the following steps: Step 1: After the cabin is painted, the scaffolding is erected. The order of scaffolding erection is: first connect and fix the adjustable base with the protective wooden pier, then install the vertical poles, horizontal poles, diagonal poles, steel pedals and stairs on the adjustable base in sequence, and finally form the scaffolding of the enclosure system construction platform; Step 2: After the marking and stud welding process is completed, when laying the insulation board, first install the truss, the truss is placed vertically in the long direction of the panel, and is connected and fixed with the connecting plate of the outer wall of the vertical pole by a short horizontal rod. The bottom end of the truss is connected to the truss support frame, and wooden pads are installed and placed. A hydraulic lifting device is installed above the wooden pads, and the starting base is installed. The starting base is connected to the truss support frame, and the truss support frame is fixedly connected to the truss. Finally, the two ends of the short steel pipe are respectively connected and fixed to the truss and the vertical pole through cross fasteners; Step 3: Install the cross bar in the middle of the truss support frame through the No. 2 connection plate, adjust the hydraulic lifting device so that the leg reinforcement lifting unit bears all the loads of the vertical pole that needs to be replaced, and twist the threaded cylinder at the same time. The rotation of the threaded cylinder drives the threaded support rod to be raised and lowered so that the bottom auxiliary roller contacts the ground to play an auxiliary support role. At the same time, the auxiliary roller can facilitate the auxiliary movement of the leg reinforcement lifting unit. Remove the horizontal rods on both sides of the leg replacement vertical pole, the vertical diagonal rods and the short vertical pole below, the starting base and the adjustable base; Step 4: Install the insulation board at the bottom of the position where the vertical pole is removed. After the insulation board is installed, install the wooden pad, double I-beam and wooden pad under the lifted leg in sequence, and install the adjustable base, starting base, horizontal rod and diagonal rod on the top of the newly installed wooden pad to lower the lifting leg; Step 5: After the lifted legs are lowered, remove the leg reinforcement lifting unit. Similarly, when installing insulation boards at other locations, refer to steps 1 to 5 to lift the legs.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The outrigger reinforcement lifting unit plays an auxiliary supporting role, which is convenient for the outrigger lifting work. The truss is made of welded cast steel at both ends of the upper and lower chords. The vertical and diagonal web members inside the truss are connected to the upper and lower chords by welding, thereby enhancing the pressure-bearing capacity of the truss. The starting base plays a connecting supporting role. The hydraulic lifting device consists of an adjustable base bottom plate and a hydraulic jack. The hydraulic jack is used to lift and lower the outrigger reinforcement lifting unit so that the load of the vertical poles of the leg-changing part is fully borne by the outrigger reinforcement lifting unit, thereby facilitating the removal of the vertical poles and horizontal poles, diagonal poles and the short vertical poles and adjustable base of the leg-changing part, so as to facilitate the installation of the insulation board, and ensure that the operation of the outrigger of the socket-type disc buckle construction platform is convenient when lifting, the installation and removal cycle is short, the overall stability is strong, and the safety risk is low; 2. When the threaded barrel and the threaded support rod need to be adjusted, the pull block can be pulled to drive the pull rod to translate. The movement of the pull rod drives the top block to move out of the limit groove, so as to facilitate the rotation and movement of the threaded barrel and the threaded support rod. When the threaded barrel and the threaded support rod are rotated to one side of the truss, they can be connected to the chord of the truss through the connecting buckle, so that the threaded barrel and the threaded support rod can provide auxiliary support to the truss, thereby achieving the effect of replaceable support between the truss and the truss support frame in different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the initial state of scaffolding erection in an embodiment of the present application; Figure 2 This is a schematic diagram of the installation of the outrigger reinforcement lifting unit of an embodiment of the present application; Figure 3 is a schematic diagram of the removal of the lifted legs in an embodiment of the present application; Figure 4 is a schematic diagram of the installation of an insulation board according to an embodiment of the present application; Figure 5 This is a schematic diagram of the lowering of the lifted legs in the embodiment of the present application; Figure 6 is a schematic diagram of dismantling a leg lifting reinforcement unit according to an embodiment of the present application; Figure 7is a schematic diagram of the three-dimensional structure of the outrigger reinforcement lifting unit of an embodiment of the present application; Figure 8 is a front view structural diagram of a leg reinforcement lifting unit according to an embodiment of the present application; Fig. 9 This is a schematic diagram of the connection structure between the threaded barrel and the threaded support rod in an embodiment of the present application; Fig.10 This is a schematic diagram of the connection structure between the cross bar and the connecting tube in the embodiment of the present application. Fig.11 This is a schematic diagram of the cross fastener structure of the embodiment of the present application Fig.12 is a schematic diagram of the connection disk structure of an embodiment of the present application; Explanation of reference numerals: 1. adjustable base; 2. protective wooden pier; 3. vertical pole; 301. inner tube; 4. connecting plate; 5. horizontal rod; 6. buckle joint; 7. wedge-shaped pin; 8. oblique rod; 801. oblique buckle joint; 9. leg reinforcement lifting unit; 10. truss; 11. truss support frame; 12. No. 2 connecting plate; 13. starting base; 14. hydraulic lifting device; 141. adjustable base bottom plate; 142. hydraulic jack ; 15. Short horizontal rod; 16. No. 2 buckle joint; 17. Short steel pipe; 18. Cross fastener; 19. Cross bar; 20. Connecting cylinder; 21. Connecting rod; 22. Threaded cylinder; 23. Threaded support rod; 24. Cylinder groove; 25. Limit rod; 26. Slide groove; 27. Slider; 28. Auxiliary roller; 29. ​​Connecting buckle; 30. Limit groove; 31. Movable cavity; 32. Top block; 33. Spring; 34. Pull rod; 35. Pull block. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1 - Attachment Fig.12 , further details of this application are given.

[0026] Embodiment: A leg lifting construction device for a fuel tank containment system platform comprises an adjustable base 1, the bottom of the adjustable base 1 is connected to a protective wooden pier 2, the top of the adjustable base 1 is connected to a vertical pole 3, the top of the vertical pole 3 is connected to an inner insert 301, the top of the inner insert 301 is also embedded with a vertical pole 3, the vertical pole 3 is arranged and welded with a connecting plate 4 in the axial direction, horizontal rods 5 are arranged and arranged in the middle between multiple groups of vertical poles 3, buckle joints 6 are welded at both ends of the horizontal rod 5, the buckle joints 6 and the connecting plate 4 are connected by a wedge-shaped pin 7, an inclined rod 8 is arranged on one side of the horizontal rod 5, and the two ends of the inclined rod 8 are connected to the inclined buckle joints 801 by bolts, and the end of the inclined buckle joint 801 away from the inclined rod 8 is also connected to the connecting plate 4. The adjustable base 1 is connected through a wedge-shaped pin 7, and the bottom end of the adjustable base 1 serves as a supporting base. The bottom end is a steel plate, and a circular hole is opened on the steel plate for installing expansion bolts to connect to the ground, providing a safe and reliable foundation for the stair tower. The upper and lower vertical poles 3 are fixed through the inner insert pipe 301, thereby realizing the function of an adjustable multi-layer scaffolding. At the same time, the verticality of the frame is ensured by the inner insert pipe 301. The connecting plate 4 plays a connecting role and can be connected to the buckle joint 6 through the wedge-shaped pin 7, so as to facilitate the installation and disassembly of the horizontal rod 5. The wedge-shaped pin 7 is made by stamping steel plate, and its own inclination ensures that the wedge-shaped pin 7 can be self-locking after being inserted into the connecting plate 4. The horizontal rod 5 and the inclined rod 8 cooperate with each other to improve the stability of the construction platform of the enclosure system.

[0027] A leg reinforcement lifting unit 9 is provided on one side of the adjustable base 1. The leg reinforcement lifting unit 9 includes a truss 10, a truss support frame 11, a second connection plate 12, a starting base 13 and a hydraulic lifting device 14. The bottom of the truss 10 is connected to the truss support frame 11, the bottom end of the truss support frame 11 is connected to the starting base 13, and the bottom end of the starting base 13 is connected to the hydraulic lifting device 14. The leg reinforcement lifting unit 9 plays an auxiliary support role to facilitate the leg lifting work. The truss 10 is made of cast steel welded at both ends of the upper and lower chord rods. The vertical and oblique web members inside the truss 10 are connected to the upper and lower chord rods by welding, thereby enhancing the bearing capacity of the truss 10. The hydraulic lifting device 14 is composed of an adjustable base bottom plate 141 and a hydraulic jack 142. The hydraulic jack 142 is used to lift and lower the support leg reinforcement lifting unit 9 so that the load of the vertical pole 3 of the leg replacement part is fully borne, thereby facilitating the removal of the vertical pole 3 and the horizontal pole 5, the diagonal pole 8 and the short vertical pole below and the adjustable base 1 of the leg replacement part, so as to facilitate the installation of the insulating plate. The insulating plate is installed on one side of the bottom of the support leg reinforcement lifting unit 9, at the bottom end of the vertical pole 3 to be replaced, to ensure that the operation of the socket-type disc buckle construction platform is convenient during the lifting of the support leg, the installation and disassembly cycle is short, the overall stability is strong, and the safety risk is low.

[0028] The hydraulic lifting device 14 includes an adjustable base bottom plate 141 and a hydraulic jack 142. The bottom of the adjustable base bottom plate 141 is connected to the hydraulic jack 142. The truss support frame 11 and the middle outer wall of the truss 10 are arranged with No. 2 connecting plates 12. A short horizontal rod 15 is arranged between the truss 10 and a side vertical pole 3. Both ends of the short horizontal rod 15 are provided with No. 2 buckle joints 16. Two groups of No. 2 buckle joints 16 are respectively connected to the No. 2 connecting plate 12 and the connecting plate 4 through pins. Short steel pipes 17 are arranged between multiple groups of short horizontal rods 15. The two ends of the short steel pipes 17 are respectively connected to the truss 10 and the vertical pole 3 through cross fasteners 18. The leg reinforcement lifting unit 9 is firmly connected to the construction platform of the enclosure system through the connection of multiple groups of short horizontal rods 15 and the short steel pipes 17, so as to bear the load of the vertical pole 3 of the leg replacement part.

[0029] A cross bar 19 is arranged in the middle of the truss support frame 11, and the cross bar 19 is connected to the truss support frame 11 through a No. 2 connecting plate 12. The outer walls of both sides of the top cross bar 19 are sleeved with connecting tubes 20, and a connecting rod 21 is connected to the outer wall of one side of the connecting tube 20. The cross bar 19 plays a role in auxiliary strengthening of the truss support frame 11. At the same time, because it is connected through the No. 2 connecting plate 12, the cross bar 19 can be disassembled and installed. At the same time, the connecting tube 20 on the outer wall of the cross bar 19 can perform axial translation movement while the outer wall of the cross bar 19 rotates, so as to adjust the position of the connecting rod 21 to perform auxiliary support at different positions.

[0030] The bottom end of the connecting rod 21 is connected to a threaded barrel 22 through a bearing, and the bottom inner wall of the threaded barrel 22 is threadedly connected to a threaded support rod 23, and the top outer wall of the threaded support rod 23 is provided with a barrel groove 24. A limiting rod 25 is connected at the center of the bottom end of the connecting rod 21, and the bottom end of the limiting rod 25 passes through the threaded barrel 22 and is embedded in the barrel groove 24. By twisting the threaded barrel 22, the threaded barrel 22 rotates to drive the threaded support rod 23 to be raised and lowered so that the bottom auxiliary roller 28 contacts the ground to play an auxiliary support role. At the same time, the auxiliary roller 28 can facilitate the auxiliary movement of the leg reinforcement lifting unit 9. The limiting rod 25 and the barrel groove 24 play a limiting role on the threaded support rod 23 to prevent the threaded support rod 23 from rotating with the rotation of the threaded barrel 22.

[0031] The outer walls on both sides of the limit rod 25 are provided with slide grooves 26, and the inner walls on both sides of the barrel groove 24 are connected with sliders 27, which are embedded in the slide grooves 26. The bottom end of the threaded support rod 23 is connected with an auxiliary roller 28, and the bottom outer wall of the threaded support rod 23 is connected with a connecting buckle 29. The slider 27 is embedded in the slide groove 26 so that the threaded support rod 23 can slide and rise and fall along the direction of the slide groove 26. The auxiliary roller 28 can play an auxiliary movement and auxiliary support role. The auxiliary roller 28 is provided with a locking device that can be locked to play a supporting role. The connecting buckle 29 is an arc buckle, and its principle is similar to that of the cross buckle and can be connected to the column structure. It can be connected to the chord of the truss 10 through the connecting buckle 29, so as to assist in supporting the truss 10 with the threaded barrel 22 and the threaded support rod 23.

[0032] The outer wall of the top cross bar 19 is arranged with limiting grooves 30, the inner wall of the connecting tube 20 is provided with a movable cavity 31, and the interior of the movable cavity 31 is provided with a top block 32, one end of the top block 32 is embedded in the limiting groove 30, and the top block 32 is embedded in the limiting groove 30 so that the connecting tube 20 is fixed to the outer wall of the cross bar 19, thereby fixing the threaded tube 22 and the threaded support rod 23 to avoid arbitrary rotation during the auxiliary support process.

[0033] Springs 33 are connected to both sides of one end of the top block 32 away from the limiting groove 30 . One end of the spring 33 away from the top block 32 abuts against the inner wall of the movable cavity 31 . The rebound force of the spring 33 ensures that the top block 32 is always embedded in the limiting groove 30 .

[0034] A pull rod 34 is provided in the middle of the two groups of springs, and the pull rod 34 is connected to the top block 32. The end of the pull rod 34 away from the top block 32 passes through the connecting tube 20 and is connected to a pull block 35. When the threaded tube 22 and the threaded support rod 23 need to be adjusted, the pull block 35 can be pulled to drive the pull rod 34 to translate. The movement of the pull rod 34 drives the top block 32 to move out of the limiting groove 30, thereby facilitating the rotation and movement of the threaded tube 22 and the threaded support rod 23. When the threaded tube 22 and the threaded support rod 23 are rotated to one side of the truss 10, they can be connected to the chord of the truss 10 through the connecting buckle 29, so that the threaded tube 22 and the threaded support rod 23 can provide auxiliary support to the truss 10, thereby achieving the effect of replaceable support between the truss 10 and the truss support frame 11 in different situations.

[0035] The outrigger lifting construction process of the liquefied gas fuel tank containment system platform includes the following steps: Step 1: After the cabin is painted, the scaffolding is erected. The order of scaffolding is as follows: first, the adjustable base 1 is connected and fixed with the protective wooden pier 2; the vertical pole 3, horizontal pole 5, inclined pole 8, steel pedal and stairs and other components are installed on the adjustable base 1 in sequence, and finally the scaffolding of the enclosure system construction platform is formed; Step 2: After the marking and stud welding process is completed, when laying the insulation board, first install the truss 10, the truss 10 is placed vertically in the long direction of the panel, and is connected and fixed to the connecting plate 4 on the outer wall of the vertical pole 3 by a short horizontal rod 15, the bottom end of the truss 10 is connected to the truss support frame 11, and a wooden pad is installed and placed. A hydraulic lifting device 14 is installed above the wooden pad, and the starting base 13 is installed. The starting base 13 is connected to the truss support frame 11, and the truss support frame 11 is fixedly connected to the truss 10. Finally, the two ends of the short steel pipe 17 are respectively connected and fixed to the truss 10 and the vertical pole 3 through a cross fastener 18; Step 3: Install the cross bar 19 to the middle part of the truss support frame 11 through the No. 2 connecting plate 12, adjust the hydraulic lifting device 14, so that the leg reinforcement lifting unit 9 can bear all the loads of the vertical pole 3 that needs to change legs, and twist the threaded cylinder 22 at the same time. The threaded cylinder 22 rotates to drive the threaded support rod 23 to adjust the lifting and lowering so that the bottom auxiliary roller 28 contacts the ground to play an auxiliary support role. At the same time, the auxiliary roller 28 can facilitate the auxiliary movement of the leg reinforcement lifting unit 9. Remove the horizontal rods 5 on both sides of the leg change vertical pole 3, the vertical diagonal rod 8 and the short vertical pole below, the starting base and the adjustable base 1; Step 4: Install the insulation board at the bottom of the position where the vertical pole 3 is removed. 48 hours after the insulation board is installed, install the wooden pad, double I-beam and wooden pad under the lifted leg in sequence, and install the adjustable base 1, the starting base 13, the horizontal rod 5 and the diagonal rod 8 on the top of the newly installed wooden pad, so as to lower the lifting leg; Step 5: After the lifted legs are lowered, the leg reinforcement lifting unit 9 is removed. Similarly, when installing insulation boards at other positions, refer to steps 1 to 5 to lift the legs.

[0036] The implementation principle of the embodiment of the present application is as follows: first, the adjustable base 1 plays the role of a supporting base, and the bottom end is a steel plate. The round holes on the steel plate are used to install expansion bolts to connect to the ground, providing a safe and reliable foundation for the stair tower. The upper and lower vertical poles 3 are fixed through the inner insert 301, thereby realizing the function of an adjustable multi-layer scaffold. At the same time, the verticality of the frame is ensured by the inner insert 301. The connecting plate 4 plays a connecting role and can be connected to the buckle joint 6 through the wedge-shaped pin 7, so as to facilitate the installation and disassembly of the horizontal rod 5. The wedge-shaped pin 7 is made by stamping steel plate, and its own inclination ensures that the wedge-shaped pin 7 can be self-locking after being inserted into the connecting plate 4. The horizontal rod 5 and the inclined rod 8 cooperate with each other to improve the stability of the construction platform of the enclosure system. The reinforcement lifting unit 9 plays the role of auxiliary support, which is convenient for lifting the outriggers. The truss 10 is made of cast steel welded at both ends of the upper and lower chords. The vertical and diagonal web members inside the truss 10 are connected to the upper and lower chords by welding, thereby enhancing the pressure-bearing capacity of the truss 10. The starting base 13 plays a connecting support role. The hydraulic lifting device 14 is composed of an adjustable base bottom plate 141 and a hydraulic jack 142. The hydraulic jack 142 is used to lift and lower the outrigger reinforcement lifting unit 9 so that the load of the vertical pole 3 of the leg-changing part is fully borne, thereby facilitating the removal of the vertical pole 3 and the horizontal pole 5, the diagonal pole 8 and the short vertical pole and the adjustable base 1 below the leg-changing part, so as to facilitate the installation of the insulating board. The outriggers are connected by multiple groups of short horizontal poles 15 and short steel pipes 17. The reinforcement lifting unit 9 is firmly connected to the construction platform of the enclosure system, so as to bear the load of the vertical pole 3 of the leg replacement part. The cross bar 19 plays a role in assisting the reinforcement of the truss support frame 11. At the same time, because it is connected through the No. 2 connecting plate 12, the cross bar 19 can be disassembled and installed. At the same time, the connecting tube 20 on the outer wall of the cross bar 19 can rotate on the outer wall of the cross bar 19 while performing axial translation movement, so as to adjust the position of the connecting rod 21 to perform auxiliary support at different positions. By twisting the threaded tube 22, the threaded tube 22 rotates and drives the threaded support rod 23 to be raised and lowered so that the bottom auxiliary roller 28 contacts the ground, thereby playing a role of auxiliary support. At the same time, the auxiliary roller 28 can facilitate the auxiliary movement of the leg reinforcement lifting unit 9. The limiting rod 25 and the barrel groove 24 limit the threaded support rod 23 to prevent the threaded support rod 23 from rotating with the rotation of the threaded barrel 22. The resilience of the spring 33 ensures that the top block 32 is always embedded in the limiting groove 30. When the threaded barrel 22 and the threaded support rod 23 need to be adjusted, the pull block 35 can be pulled to drive the pull rod 34 to perform translational movement. The movement of the pull rod 34 drives the top block 32 to move out of the limiting groove 30, thereby facilitating the rotation and movement of the threaded barrel 22 and the threaded support rod 23. When the threaded barrel 22 and the threaded support rod 23 are rotated to one side of the truss 10, they can be connected to the chord of the truss 10 through the connecting buckle 29, so that the threaded barrel 22 and the threaded support rod 23 can provide auxiliary support to the truss 10.Thus, the truss 10 and the truss support frame 11 can be replaced in different situations.

[0037] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A leg lifting construction device for a fuel tank containment system platform, comprising an adjustable base (1), characterized in that: The bottom of the adjustable base (1) is connected to a protective wooden pier (2), the top of the adjustable base (1) is connected to a vertical pole (3), the top of the vertical pole (3) is connected to an inner tube (301), the top of the inner tube (301) is also embedded with a vertical pole (3), the vertical pole (3) is welded with a connecting plate (4) arranged in the axial direction, a horizontal rod (5) is arranged in the middle between multiple groups of vertical poles (3), both ends of the horizontal rod (5) are welded with a buckle joint (6), the buckle joint (6) and the connecting plate (4) are connected by a wedge-shaped pin (7), an inclined rod (8) is arranged on one side of the horizontal rod (5), both ends of the inclined rod (8) are connected to an inclined buckle joint (801) by bolts, and the end of the inclined buckle joint (801) away from the inclined rod (8) is also connected to the connecting plate (4) by a wedge-shaped pin (7).

2. The outrigger lifting construction device for a fuel tank containment system platform according to claim 1, characterized in that: A leg reinforcement lifting unit (9) is provided on one side of the adjustable base (1), and the leg reinforcement lifting unit (9) comprises a truss (10), a truss support frame (11), a second connection plate (12), a starting base (13) and a hydraulic lifting device (14); the bottom of the truss (10) is connected to the truss support frame (11), the bottom end of the truss support frame (11) is connected to the starting base (13), and the bottom end of the starting base (13) is connected to the hydraulic lifting device (14).

3. The outrigger lifting construction device for a fuel tank containment system platform according to claim 2, characterized in that: The hydraulic lifting device (14) comprises an adjustable base bottom plate (141) and a hydraulic jack (142), the bottom of the adjustable base bottom plate (141) is connected to the hydraulic jack (142), the truss support frame (11) and the middle outer wall of the truss (10) are both arranged with No. 2 connecting plates (12), a short horizontal rod (15) is arranged between the truss (10) and the vertical pole (3) on one side, and No. 2 buckle joints (16) are arranged at both ends of the short horizontal rod (15), and two groups of the No. 2 buckle joints (16) are respectively connected to the No. 2 connecting plate (12) and the connecting plate (4) through bolts, and short steel pipes (17) are arranged between multiple groups of the short horizontal rods (15), and the two ends of the short steel pipes (17) are respectively connected to the truss (10) and the vertical pole (3) through cross fasteners (18).

4. The outrigger lifting construction device for a fuel tank containment system platform according to claim 3 is characterized in that: A cross bar (19) is arranged in the middle of the truss support frame (11), and the cross bar (19) is connected to the truss support frame (11) via a No. 2 connecting plate (12). The outer walls of both sides of the cross bar (19) at the top are sleeved with connecting tubes (20), and the outer wall of one side of the connecting tube (20) is connected to a connecting rod (21).

5. The outrigger lifting construction device for a fuel tank containment system platform according to claim 4, characterized in that: The bottom end of the connecting rod (21) is connected to a threaded barrel (22) via a bearing, the bottom inner wall of the threaded barrel (22) is threadedly connected to a threaded support rod (23), the top outer wall of the threaded support rod (23) is provided with a barrel groove (24), the center of the bottom end of the connecting rod (21) is connected to a limiting rod (25), and the bottom end of the limiting rod (25) passes through the threaded barrel (22) and is embedded in the barrel groove (24).

6. The outrigger lifting construction device for a fuel tank containment system platform according to claim 5, characterized in that: The outer walls on both sides of the limit rod (25) are provided with sliding grooves (26), the inner walls on both sides of the barrel groove (24) are connected with sliding blocks (27), and the sliding blocks (27) are embedded in the sliding grooves (26). The bottom end of the threaded support rod (23) is connected with an auxiliary roller (28), and the bottom outer wall of the threaded support rod (23) is connected with a connecting buckle (29).

7. The outrigger lifting construction device for a fuel tank containment system platform according to claim 4, characterized in that: The outer wall of the cross bar (19) at the top is arranged with limiting grooves (30), the inner wall of the connecting tube (20) is provided with an active cavity (31), the interior of the active cavity (31) is provided with a top block (32), and one end of the top block (32) is embedded in the limiting groove (30).

8. The outrigger lifting construction device for a fuel tank containment system platform according to claim 7, characterized in that: Springs (33) are connected to both sides of one end of the top block (32) away from the limiting groove (30), and one end of the spring (33) away from the top block (32) abuts against the inner wall of the movable cavity (31).

9. The outrigger lifting construction device for a fuel tank containment system platform according to claim 8, characterized in that: A pull rod (34) is provided in the middle of the two groups of springs (33), the pull rod (34) is connected to the top block (32), and one end of the pull rod (34) away from the top block (32) passes through the connecting tube (20) and is connected to the pull block (35).

10. A construction process for lifting the outriggers of a fuel tank containment system platform, using the outrigger lifting construction device of a liquefied gas fuel tank containment system platform according to any one of claims 1 to 9, characterized in that: The leg lifting construction process of the liquefied gas fuel tank containment system platform comprises the following steps: Step 1: After the cabin is painted, the scaffolding is erected. The order of scaffolding erection is as follows: first, the adjustable base (1) is connected and fixed with the protective wooden pier (2); vertical poles (3), horizontal poles (5), diagonal poles (8), steel pedals and stairs and other components are sequentially installed on the adjustable base (1), and finally a scaffolding of the enclosure system construction platform is formed; Step 2: After the marking and stud welding process is completed, when laying the insulation board, first install the truss (10), the truss (10) is placed vertically in the long direction of the panel, and is connected and fixed to the connecting plate (4) of the outer wall of the vertical pole (3) by a short horizontal rod (15), the bottom end of the truss (10) is connected to the truss support frame (11), and a wooden pad is installed and placed. A hydraulic lifting device (14) is installed above the wooden pad, and a starting base (13) is installed. The starting base (13) is connected to the truss support frame (11), and the truss support frame (11) is fixedly connected to the truss (10), and finally the two ends of the short steel pipe (17) are respectively connected and fixed to the truss (10) and the vertical pole (3) through a cross fastener (18); Step 3: Install the cross bar (19) to the middle of the truss support frame (11) through the No. 2 connecting plate (12), adjust the hydraulic lifting device (14) so ​​that the leg reinforcement lifting unit (9) bears all the load of the vertical pole (3) that needs to change legs, and twist the threaded cylinder (22) at the same time. The threaded cylinder (22) rotates to drive the threaded support rod (23) to be raised and lowered so that the bottom auxiliary roller (28) contacts the ground to play an auxiliary support role. At the same time, the auxiliary roller (28) can facilitate the auxiliary movement of the leg reinforcement lifting unit (9). Remove the horizontal rods (5) on both sides of the leg change vertical pole (3), the vertical diagonal rod (8) and the short vertical pole below, the starting base (13) and the adjustable base (1); Step 4: Install the insulation board at the bottom of the position where the vertical pole (3) is removed. After the insulation board is installed, install the wooden pad, double I-beam and wooden pad under the lifted leg in sequence, and install the adjustable base (1), the starting base (13), the horizontal rod (5) and the diagonal rod (8) on the top of the newly installed wooden pad, so as to lower the lifting leg; Step 5: After the raised leg is lowered, the leg reinforcement lifting unit (9) is removed. Similarly, when installing insulation boards at other locations, refer to steps 1 to 5 to lift the leg.

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