Offshore topside hoisting system and hoisting process

Abstract

The application discloses a kind of offshore booster station upper block hoisting system and hoisting process, belong to the technical field of offshore hoisting, it includes lifting hook and lifting appliance body, the lifting hook includes four hook seats, the lifting appliance body includes two hoisting beams and two bearing beams, two the hoisting beam is parallelly arranged, two hoisting beam is close to the both ends of length direction of itself by connecting ring-shaped sling respectively connected to four hook seats, two the bearing beam is parallelly arranged and located at the bottom of two hoisting beams, two hoisting beam and two bearing beam are connected by four connecting pieces, two the bearing beam is close to the both ends of length direction of itself and is provided with the hoisting ring-shaped sling for hoisting workpiece.This application has the effect of facilitating the stable hoisting of offshore booster station upper block.

Description

Technical Field

[0001] This invention relates to the field of offshore lifting, and in particular to a lifting system and lifting process for the upper module of an offshore substation. Background Technology

[0002] The upper module of the offshore substation is a crucial link connecting offshore wind turbines and the onshore control center. Its main function is to collect and boost the power generated by the offshore wind turbines, and then transmit it to the power grid through the onshore control center. It is the core component of the offshore substation and is essential for the grid connection and power generation of offshore wind farms.

[0003] The installation of the superstructure of offshore substations often relies on hoisting operations, which typically involve precise coordination of hoisting slings and ropes to achieve direct and effective hoisting of the superstructure. However, in actual operation, the weight distribution of the equipment inside the superstructure of an offshore substation is often uneven, leading to weight eccentricity.

[0004] Weight eccentricity, simply put, means that the weight of the equipment within the module is not evenly distributed, but rather biased. This imbalance makes it difficult to maintain an ideal horizontal position for the main hook used for hoisting. The tilting or instability of the main hook not only increases instability during hoisting but may also lead to deviations in the hoisting path, thus increasing the difficulty of controlling hoisting accuracy. Therefore, achieving stable hoisting of the upper modules of offshore substations has become a pressing problem to be solved. Summary of the Invention

[0005] To facilitate the stable hoisting of the upper modules of an offshore substation, this application provides a hoisting system and hoisting process for the upper modules of an offshore substation.

[0006] Firstly, this application provides a hoisting system for the upper module of an offshore substation, employing the following technical solution:

[0007] A lifting system for the upper module of an offshore substation includes a hook and a lifting device body. The hook includes four hook seats, and the lifting device body includes two lifting beams and two load-bearing beams. The two lifting beams are arranged in parallel, and their ends near their own length are connected to the four hook seats by connecting ring slings. The two load-bearing beams are arranged in parallel and located at the bottom of the two lifting beams. The two lifting beams and the two load-bearing beams are connected by four connectors. Both ends of the two load-bearing beams near their own length are provided with lifting ring slings for lifting the workpiece.

[0008] By adopting the above technical solution, when hoisting the upper module of the offshore substation, the upper module is first connected by four hoisting ring slings. Then, the hook is hoisted so that it can lift the workpiece, i.e., the upper module of the offshore substation, together with the connecting ring slings and the lifting device body. The setting of the lifting device body can evenly distribute stress when hoisting the upper module of the offshore substation, so that the upper module of the offshore substation can better maintain balance during the hoisting process, reduce the risk of swaying and tilting, improve the overall hoisting stability, and facilitate the stable hoisting of the upper module of the offshore substation.

[0009] Optionally, both the lifting beam and the load-bearing beam are composed of multiple beams, with adjacent beams designated as a first beam and a second beam, respectively, and the first beam and the second beam are fixed together by bolts.

[0010] By adopting the above technical solution, the lifting beam and load-bearing beam composed of multiple beams enable the individual beam to be removed for maintenance and replacement when it is damaged, which facilitates the subsequent maintenance of the lifting beam and load-bearing beam and ensures its performance.

[0011] Optionally, a first flange is fixedly connected to one end of the first beam facing the second beam, and a second flange is fixedly connected to one end of the second beam facing the first beam. The first flange and the second flange are fixedly connected by bolts. A positioning block is fixedly connected to one side of the first flange facing the second flange, and a positioning hole corresponding to and engaging with the positioning block is provided on one side of the second flange facing the first flange.

[0012] By adopting the above technical solution, the setting of the first flange and the second flange facilitates the stable connection between the first beam and the second beam. The cooperation of the positioning block and the positioning hole plays a positioning role during the installation of the first beam and the second beam, which helps to ensure the stress stability of the first beam and the second beam during installation.

[0013] Optionally, a first reinforcing rib is fixedly connected between the first flange and the first beam, and a second reinforcing rib is fixedly connected between the second flange and the second beam, and the ...

[0014] By adopting the above technical solution, the setting of the first reinforcing rib and the second reinforcing rib helps to ensure the connection strength between the first flange and the first beam and the second flange and the second beam, respectively, thereby fully ensuring the structural strength of the hoisting beam and the load-bearing beam and improving the load-bearing capacity.

[0015] Optionally, the connector includes four connecting beams arranged in a rectangular shape. One end of each connecting beam is fixedly installed on the hoisting beam, and the other end is rotatably installed on the load-bearing beam. The load-bearing beam is provided with a positioning component for positioning the connecting beam.

[0016] By adopting the above technical solution, the connecting beam makes it less likely for the connecting ring sling and the hoisting ring sling to interfere with each other during the hoisting process of the upper module of the substation. This helps to further ensure the stability of the workpiece, i.e., the upper module of the substation, during hoisting. In addition, the rotating design of the connecting beam facilitates adaptive angle adjustment according to workpieces of different weights, ensuring the hoisting stability of the connecting ring sling.

[0017] Optionally, the positioning assembly includes a positioning rotating rod, a positioning fixed seat, a positioning locking rod, and a positioning spring. The positioning rotating rod is arc-shaped and fixedly installed on the connecting beam. The positioning fixed seat is fixedly installed on the load-bearing lifting beam. The positioning rotating rod passes through and slides into the positioning fixed seat. The positioning rotating rod has several positioning locking holes distributed along its own length. The positioning locking rod is rotatably installed on the positioning fixed seat. The positioning fixed seat has fixing holes corresponding to each positioning locking hole. When the positioning rotating rod rotates, the fixing holes sequentially correspond to each positioning locking hole. The positioning spring is installed between the positioning fixed seat and the positioning locking rod. Under the action of the positioning spring, one end of the positioning locking rod passes through the fixing hole and is located in one of the positioning locking holes.

[0018] By adopting the above technical solution, the positioning rotating rod serves two purposes: firstly, it limits the rotation of the connecting beam, which helps to further ensure the stability of the connecting beam during rotation; secondly, pressing the positioning rotating rod unlocks the connecting beam, making the operation of fixing and unlocking the connecting beam after rotation simple.

[0019] Optionally, the hook seat includes a limiting component, which includes a limiting block, a limiting rod, and a limiting spring. The hook seat has a limiting groove extending radially along the hook. The limiting block slides within the limiting groove. The limiting rod is fixedly installed on the limiting block and passes through and slides within the hook seat radially along the hook. The limiting spring is used to move the limiting block away from the hook holding part. One end of the lifting ring sling is located at the bottom of the limiting block. The top of the limiting block has a limiting guide surface, which moves towards the hook seat when subjected to force.

[0020] By adopting the above technical solution, the limiting block further limits the position of the lifting ring sling during the hoisting process, making it less likely for the lifting ring sling to fall off the hook seat. This helps to further ensure the stability of the lifting ring sling when hoisting the lifting device body. On the one hand, the limiting guide surface guides the installation of the lifting ring sling, making it easy to quickly install the lifting ring sling to the position connected to the hook and located at the bottom of the limiting block. On the other hand, pulling the limiting rod to move the limiting block closer to the hook can release the limitation on the lifting ring sling, thus facilitating the removal of the lifting ring sling quickly and easily.

[0021] Optionally, the hook further includes a fixing plate, and each hook seat is fixedly installed on the fixing plate. The hook seat is hook-shaped and is provided with a locking component. The locking component includes a locking stop bar, which includes a locking part and a locking drive part. The locking part is rotatably installed on the hook seat, and the locking drive part is fixedly installed on one end of the locking part. When the locking part rotates, it closes or opens the hook-shaped opening of the hook seat. In normal operation, the locking part closes the hook-shaped opening of the hook seat under the gravity of the locking drive part.

[0022] By adopting the above technical solution, force is applied to rotate the locking drive unit, so that the locking unit rotates together, thereby enabling the locking unit to open and close the hook-shaped opening of the hook seat. This is convenient and quick, and facilitates the removal of the connecting ring sling for inspection and maintenance.

[0023] Optionally, the positioning assembly further includes positioning connecting rods, positioning fixing seats, positioning driving components, and positioning springs. Four positioning connecting rods and positioning stop bars are provided correspondingly. One end of each positioning connecting rod is rotatably mounted on each positioning driving part, and the other end is rotatably mounted on the positioning driving component. The positioning driving component passes through vertically and slides to engage with the positioning fixing seat. The positioning fixing seat is fixedly mounted on the fixing plate. The positioning spring is disposed between the positioning fixing seat and the positioning driving component. Under the elastic force of the positioning spring, the positioning part stably closes the hook-shaped opening of the hook seat.

[0024] By adopting the above technical solution, the setting of the locking spring helps to further ensure the stability of the position of the locking part when closing the hook-shaped opening of the hook seat. When force is applied to move the locking drive component, each locking link drives each locking stop bar to rotate together, which facilitates the synchronous opening and closing of multiple hook-shaped openings of the hook seat, making the operation simpler.

[0025] Secondly, this application provides a hoisting process for the upper module of an offshore substation, employing the following technical solution: A hoisting process for the upper module of an offshore substation includes the following specific steps: S1, sequentially connecting one end of four connecting ring slings to each hook seat and the other end to the hoisting beam. S2, connecting one end of the four hoisting ring slings to the supporting beam and the other end to the top of the upper module of the offshore substation. S3, using a crane vessel to hoist the hooks, thereby transporting the upper module of the offshore substation to the lower structure of the offshore substation. S4, after welding the upper module of the offshore substation to the lower structure of the offshore substation, disconnecting the connection between each hoisting ring sling and the upper module of the offshore substation, completing the hoisting.

[0026] By adopting the above technical solution, the installation of the hoisting beam and the load-bearing beam plays a role in evenly distributing stress during the hoisting process of the upper module of the offshore substation. This allows the upper module of the offshore substation to maintain better balance during the hoisting process, reduces the risk of swaying and tilting, improves the overall hoisting stability, and facilitates the stable hoisting of the upper module of the offshore substation.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The design of the lifting gear body can evenly distribute stress during the hoisting of the upper module of the offshore substation, thereby enabling the upper module of the offshore substation to maintain better balance during the hoisting process, reducing the risk of swaying and tilting, which is conducive to improving the overall hoisting stability and facilitating the stable hoisting of the upper module of the offshore substation.

[0029] 2. The installation of the first and second reinforcing ribs helps to ensure the connection strength between the first flange and the first beam, as well as between the second flange and the second beam, thereby fully ensuring the structural strength of the hoisting beam and the load-bearing beam and improving the load-bearing capacity.

[0030] 3. During the hoisting process, the limiting block further limits the position of the hoisting ring sling, making it less likely for the hoisting ring sling to fall off the hook seat, which helps to further ensure the stability of the hoisting ring sling when hoisting the lifting device body. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0032] Figure 2 This is a schematic diagram of the main structure of the hook in Embodiment 1 of this application.

[0033] Figure 3 yes Figure 1 A magnified view of part A in the diagram.

[0034] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0035] Figure 5 This is a schematic diagram of the main structure of the hook in Embodiment 2 of this application.

[0036] Figure 6 yes Figure 4 A magnified view of part B in the diagram.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Fixed plate; 2. Stop part; 3. Hook seat; 4. Connecting ring sling; 5. Limiting block; 6. Limiting rod; 7. Limiting spring; 8. Limiting groove; 9. Limiting guide surface; 10. Limiting handle; 11. Lifting beam; 12. Bearing beam; 13. Lifting wheel; 14. Bearing wheel; 15. Lifting ring sling; 16. Connecting beam; 17. Beam body; 171. First beam body; 172. Second beam body; 18. First flange; 19. Second flange; 20. Positioning block; 21. Positioning hole; 22. First reinforcing rib; 23. Second reinforcing rib; 24. Positioning stop bar; 241. Positioning part; 242. Positioning drive part; 25. Positioning connecting rod; 26. Positioning fixing seat; 27. Positioning drive component; 28. Positioning spring; 29. ​​Positioning rotating rod; 30. Positioning fixing seat; 31. Positioning clamping rod; 32. Positioning spring; 33. Positioning clamping hole; 34. Fixing hole; 35. Positioning bolt; 36. Positioning screw hole. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0040] This application discloses an embodiment of an offshore substation upper module hoisting system.

[0041] Example 1.

[0042] Reference Figure 1 and Figure 2 The offshore substation upper module hoisting system includes a hook and a hoisting device body. The hook includes a fixed plate 1, four stop parts 2 and four hook seats 3. The fixed plate 1 is circular. Each hook seat 3 and stop part 2 is fixedly installed on the top of the fixed plate 1 and evenly distributed around the axis of the fixed plate 1.

[0043] Reference Figure 2 Each stop part 2 is positioned close to the axis of the base plate and directly opposite each hook seat 3. A connecting ring sling 4 is provided between each stop part 2 and the hook seat 3 to achieve a stable connection with the lifting device body. To further ensure the stability of the position of the connecting ring sling 4, the hook seat 3 is equipped with a limiting component to limit the movement of the connecting ring sling 4.

[0044] Continue to refer to Figure 2 Specifically, the limiting assembly includes a limiting block 5, a limiting rod 6, and a limiting spring 7. The free end of the hook near its top has a limiting groove 8 extending radially along the fixed plate 1. The limiting groove 8 extends to the side of the hook seat 3 near the stop part 2. The limiting block 5 slides and fits in the limiting groove 8. One end of the limiting spring 7 is fixedly installed on the limiting block 5, and the other end is fixedly installed on the groove wall of the limiting groove 8 away from the stop part 2. Under the elastic force of the limiting spring 7, the limiting block 5 abuts against the top of the stop part 2, thereby achieving stable limiting of the position of the connecting ring sling 4.

[0045] Continue to refer to Figure 2 The top of the limiting block 5 is provided with an arc-shaped limiting guide surface 9. When force is applied, the limiting guide surface 9 moves towards the hook holding part, thereby facilitating the quick placement of the connecting ring sling 4 between the stop part 2 and the hook seat 3. One end of the limiting rod 6 is fixedly installed on the limiting block 5, and the other end passes through the bottom plate radially and slides to engage with the hook seat 3. By pulling the limiting rod 6, the limiting block 5 moves together, thereby releasing the limitation on the position of the connecting ring sling 4. The end of the limiting rod 6 away from the limiting block 5 is fixedly connected to a limiting handle 10, so that force can be applied through the limiting handle 10 to move the limiting rod 6.

[0046] Reference Figure 1 and Figure 3 The lifting device body includes two lifting beams 11 and two load-bearing beams 12. The two lifting beams 11 are arranged in parallel, and lifting wheels 13 are rotatably installed at both ends of the two lifting beams 11 near their own length direction. The end of each connecting ring sling 4 away from each hook is respectively wrapped around each lifting wheel 13 to achieve a stable connection between the lifting beams 11 and the hooks.

[0047] Reference Figure 3 Two load-bearing beams 12 are arranged in parallel and are located at the bottom of two lifting beams 11. The two load-bearing beams 12 and the two lifting beams 11 form a rectangle. Load-bearing wheels 14 are rotatably installed at both ends of the two load-bearing beams 12 near their own length direction. The load-bearing wheels 14 are wrapped with lifting ring slings 15 to stably lift the workpiece, i.e., the upper module of the offshore substation.

[0048] Reference Figure 1 and Figure 3To prevent interference between the lifting ring sling 15 and the connecting ring sling 4, and to further ensure the stability of the workpiece during lifting, a connecting member is provided between the lifting beam 11 and the load-bearing beam 12. In this embodiment, the connecting member includes a connecting beam 16, which is arranged in a rectangular shape with four beams. One end of each connecting beam 16 is fixedly installed on the lifting beam 11, and the other end is fixedly installed on the load-bearing beam 12, so as to achieve a stable connection between the lifting beam 11 and the load-bearing beam 12.

[0049] Continue to refer to Figure 1 and Figure 3 To facilitate subsequent inspection and maintenance of the lifting beam 11 and the load-bearing beam 12, both the lifting beam 11 and the load-bearing beam 12 are composed of multiple beams 17. Specifically, two adjacent beams 17 are respectively designated as a first beam 171 and a second beam 172. A first flange 18 is fixedly connected to the end of the first beam 171 facing the second beam 172, and a second flange 19 is fixedly connected to the end of the second beam 172 facing the first beam 171. The first flange 18 and the second flange 19 are fixed by bolts evenly distributed around their own axes to achieve a stable connection between the first flange 18 and the second flange 19.

[0050] Reference Figure 3 To ensure the stability of the position of the first flange 18 and the second flange 19 when they are fixed by bolts, a number of positioning blocks 20 are fixedly connected to the side of the first flange 18 facing the second flange 19, which are evenly distributed around their own axis. In this embodiment, the positioning blocks 20 are cylindrical, and the positioning blocks 20 are staggered with the bolts that fix the first flange 18 and the second flange 19. The side of the second flange 19 facing the first flange 18 has positioning holes 21 that correspond to and are inserted into the positioning blocks 20, so as to play a stable positioning role when the first flange 18 and the second flange 19 are connected.

[0051] Continue to refer to Figure 3 A first reinforcing rib 22 is fixedly connected between the first flange 18 and the first beam 171, and a second reinforcing rib 23 is fixedly connected between the second flange 19 and the second beam 172, and a second reinforcing rib 23 is fixedly connected between the second flange 19 and the second beam 172, and a second reinforcing rib 23 is fixedly connected between the second flange 19 and the second beam 172, so as to ensure the overall structural strength of the hoisting beam 11 and the load-bearing beam 12, thereby achieving stable load bearing on the upper module of the offshore substation.

[0052] The implementation principle of Example 1 is as follows: When it is necessary to hoist the upper module of the offshore substation, the upper module of the offshore substation is first connected by four hoisting ring slings 15. Then, the hook is hoisted so that the hook, through the connecting ring slings 4 and the lifting device body, drives the workpiece, i.e., the upper module of the offshore substation, to be hoisted together. The setting of the lifting device body can evenly distribute stress when hoisting the upper module of the offshore substation, so that the upper module of the offshore substation can better maintain balance during the hoisting process, reduce the risk of swaying and tilting, and improve the overall hoisting stability, making it easier to achieve stable hoisting of the upper module of the offshore substation.

[0053] Example 2.

[0054] Reference Figure 4 The difference between this embodiment and embodiment 1 is that the specific settings of the hook and connector are different. Specifically, in this embodiment, the hook includes a fixed plate 1 and four hook seats 3. Each hook seat 3 is fixedly installed on the bottom of the fixed plate 1 and evenly distributed around the axis of the fixed plate 1. In this embodiment, the hook seat 3 is hook-shaped.

[0055] Reference Figure 4 and Figure 5 The hook seat 3 is provided with a locking assembly, which includes a locking stop bar 24, a locking connecting rod 25, a locking fixing seat 26, a locking drive component 27, and a locking spring 28. The locking stop bar 24 includes a locking part 241 and a locking drive part 242. The locking part 241 is rotatably mounted on the hook seat 3, and the locking drive part 242 is fixedly mounted on one end of the locking part 241. When the locking part 241 rotates, it closes or does not close the hook-shaped opening of the hook seat 3.

[0056] Continue to refer to Figure 4 and Figure 5 The locking seat 26 is coaxially fixed to the bottom of the fixed plate 1. The locking drive component 27 is vertically inserted and slidably fitted to the locking seat 26. One end of the locking spring 28 is connected to the locking seat 26, and the other end is connected to the locking drive component 27. Under the elastic force of the locking spring 28, the locking drive component 27 moves away from the fixed plate 1. Four locking connecting rods 25 and locking stop rods 24 are provided correspondingly. One end of each locking connecting rod 25 is rotatably installed on the locking drive component 27, and the other end is rotatably installed on each locking drive part 242. The locking part 241 stably closes the hook-shaped opening of the hook seat 3 under its own weight and the elastic force of the locking spring 28. When the locking drive component 27 is pressed, each locking connecting rod 25 drives each locking stop rod 24 to rotate together, thereby facilitating the synchronous opening and closing of multiple hook-shaped openings of the hook seat 3, making the operation simpler.

[0057] Reference Figure 4 and Figure 6In this embodiment of the application, the connecting member includes a connecting beam 16. There are four connecting beams 16 arranged in a rectangular shape. One end of each connecting beam 16 is fixedly installed on the hoisting beam 11, and the other end is rotatably installed on the bearing beam 12 around the axis of the hoisting beam 11. The bearing beam 12 is provided with a positioning component for positioning the connecting beam 16.

[0058] Reference Figure 6 Specifically, the positioning assembly includes a positioning rotating rod 29, a positioning fixed seat 30, a positioning locking rod 31, and a positioning spring 32. The positioning rotating rod 29 is arc-shaped and fixedly installed on the connecting beam 16. The positioning fixed seat 30 is fixedly installed on the load-bearing lifting beam 12. The positioning rotating rod 29 passes through and slides into the positioning fixed seat 30. Several through-holes 33 distributed along the length of the positioning rotating rod 29 are provided on the side away from the connecting beam 16. The positioning locking rod 31 is rotatably installed on the positioning fixed seat 30. The positioning fixed seat 30 has horizontally through-holes 34. When the positioning rotating rod 29 rotates, the fixing holes 34 sequentially correspond to the positioning holes 33.

[0059] Continue to refer to Figure 6 One end of the positioning spring 32 is installed on the positioning fixing seat 30, and the other end is installed on the positioning clamp 31. Under the action of the spring force of the positioning spring 32, the positioning clamp 31 is inserted into the fixing hole 34 and located in one of the positioning clamp holes 33 to fix the position of the connecting beam 16. The setting of rotating and fixing the connecting beam 16 facilitates adaptive angle adjustment according to the lifting workpiece of different weights, thereby helping to ensure the lifting stability of the connecting ring sling 4.

[0060] Continue to refer to Figure 6 To ensure stability when the positioning rod 31 releases its fixation on the connecting beam 16, a positioning bolt 35 is rotatably mounted on the positioning rod 31. The positioning fixing seat 30 has a positioning screw hole 36 that is threadedly engaged with the positioning bolt 35. When the positioning bolt 35 is threadedly engaged with the positioning screw hole 36, the positioning rod 31 releases its fixation on the connecting beam 16, thereby enabling the positioning bolt 35 to limit the position of the positioning rod 31.

[0061] The implementation principle of Example 2 is the same as that of Example 1. The main difference is that, on the one hand, it is easier to open and close the hook-shaped openings of multiple hook seats 3 by moving the locking drive component 27 synchronously, making the operation simpler. On the other hand, it is easier to adjust the angle of workpieces of different weights, i.e., the upper module of the offshore booster station, by rotating the connecting beam 16, which is beneficial to further ensure the hoisting stability of the connecting ring sling 4 when hoisting workpieces of different weights.

[0062] This application also discloses a hoisting process for the upper module of an offshore substation. The hoisting process for the upper module includes the following steps: S1, sequentially connecting one end of four connecting ring slings 4 to each hook seat 3 and the other end to the hoisting beam 11; S2, connecting one end of four hoisting ring slings 15 to the supporting beam 12 and the other end to the top of the upper module of the offshore substation; S3, using a crane vessel to hoist the hooks, thereby transporting the upper module of the offshore substation to the lower structure of the offshore substation; S4, after welding the upper module of the offshore substation to the lower structure, disconnecting each hoisting ring sling 15 from the upper module of the offshore substation, completing the hoisting.

[0063] The implementation principle of the lifting process for the upper module of an offshore substation in this application embodiment is as follows: During the lifting of the upper module of the offshore substation, the setting of the lifting beam 11 and the bearing beam 12 plays the role of uniformly distributing stress, so that the upper module of the offshore substation can better maintain balance during the lifting process, reduce the risk of swaying and tilting, and improve the overall lifting stability, making it easier to achieve stable lifting of the upper module of the offshore substation.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An offshore topside module hoisting system, characterized by: The utility model provides hook and spreader body, the hook includes four hook seat (3), the spreader body includes two hoisting beam (11) and two bearing beam (12), two hoisting beam (11) are parallelly arranged, two hoisting beam (11) are connected to four hook seat (3) respectively through connecting ring sling (4) near the both ends of length direction of self, two bearing beam (12) are parallelly arranged and are located at the bottom of two hoisting beam (11), two hoisting beam (11) are connected with two bearing beam (12) through four connecting pieces, and the both ends near the length direction of self of two bearing beam (12) are provided with the hoisting ring sling (15) for hoisting workpiece, The connecting piece includes connecting beam (16), and the connecting beam (16) is rectangularly distributed with four, one end of each connecting beam (16) is fixedly installed on hoisting beam (11), and the other end is rotatably installed on bearing beam (12), and the bearing beam (12) is provided with a positioning assembly for positioning the connecting beam (16). The positioning assembly includes a positioning rotating rod (29), a positioning fixed seat (30), a positioning clamping rod (31) and a positioning spring (32), the positioning rotating rod (29) is arc-shaped and fixedly installed on the connecting beam (16), the positioning fixed seat (30) is fixedly installed on the bearing beam (12), the positioning rotating rod (29) penetrates and slidably cooperates with the positioning fixed seat (30), the positioning rotating rod (29) is provided with a plurality of positioning clamping holes (33) distributed along the length direction of itself, the positioning clamping rod (31) is rotatably installed on the positioning fixed seat (30), the positioning fixed seat (30) is provided with a fixed hole (34) corresponding to each positioning clamping hole (33), the fixed hole (34) corresponds to each positioning clamping hole (33) in turn when the positioning rotating rod (29) rotates, and the positioning spring (32) is installed between the positioning fixed seat (30) and the positioning clamping rod (31), one end of the positioning clamping rod (31) penetrates into the fixed hole (34) and is located in a certain positioning clamping hole (33) under the elastic force of the positioning spring (32).

2. A topside module hoisting system for an offshore booster station according to claim 1, characterized in that: The hoisting beam (11) and the bearing beam (12) are composed of a plurality of beam bodies (17), and adjacent two beam bodies (17) are respectively a first beam body (171) and a second beam body (172), the first beam body (171) and the second beam body (172) are fixed by bolts.

3. A topside module hoisting system for an offshore booster station according to claim 2, characterized in that: One end of the first beam body (171) towards the second beam body (172) is fixedly connected with a first flange (18), one end of the second beam body (172) towards the first beam body (171) is fixedly connected with a second flange (19), the first flange (18) and the second flange (19) are fixed by bolts, one side of the first flange (18) towards the second flange (19) is fixedly connected with a positioning block (20), and one side of the second flange (19) towards the first flange (18) is provided with a positioning hole (21) corresponding to and in plug-in cooperation with the positioning block (20).

4. A topside module hoisting system for an offshore booster station according to claim 3, characterized in that: The first flange (18) and the first beam body (171) are fixedly connected with the first reinforcing ribs (22) distributed circumferentially around the self axis, and the second flange (19) and the second beam body (172) are fixedly connected with the second reinforcing ribs (23) distributed circumferentially around the self axis.

5. A topside module hoisting system for an offshore booster station according to claim 1, characterized in that: The hook base (3) is provided with a limiting assembly, the limiting assembly comprises a limiting block (5), a limiting rod (6) and a limiting spring (7), the hook base (3) is provided with a limiting groove (8) extending along the radial direction of the hook, the limiting block (5) is slidingly fitted in the limiting groove (8), the limiting rod (6) is fixedly installed on the limiting block (5), the limiting rod (6) is provided through and slidingly fitted in the hook base (3) along the radial direction of the hook, the limiting spring (7) is used for moving the limiting block (5) away from the hook holding part, one end of the lifting annular sling (15) is located at the bottom of the limiting block (5), the top of the limiting block (5) is provided with a limiting guide surface (9), and the limiting guide surface (9) moves towards the hook base (3) when subjected to force.

6. A topside module hoisting system for an offshore booster station according to claim 1, characterized in that: The hook further comprises a fixed disc (1), each hook base (3) is fixedly installed on the fixed disc (1), the hook base (3) is provided in a hook shape, the hook base (3) is provided with a clamping assembly, the clamping assembly comprises a clamping stop rod (24), the clamping stop rod (24) comprises a clamping part (241) and a clamping driving part (242), the clamping part (241) is rotatably installed on the hook base (3), the clamping driving part (242) is fixedly installed on one end of the clamping part (241), and the clamping part (241) rotates to close or not close the hook-shaped opening of the hook base (3), in a normal state, the clamping part (241) closes the hook-shaped opening of the hook base (3) under the gravity of the clamping driving part (242).

7. A topside module hoisting system for an offshore booster station according to claim 6, characterized in that: The clamping assembly further comprises a clamping connecting rod (25), a clamping fixed seat (26), a clamping driving member (27) and a clamping spring (28), the clamping connecting rod (25) is provided with four corresponding clamping stop rods (24), one end of each clamping connecting rod (25) is rotatably installed on each clamping driving part (242), and the other end is rotatably installed on the clamping driving member (27), the clamping driving member (27) is provided through and slidingly fitted in the clamping fixed seat (26) along the vertical direction, the clamping fixed seat (26) is fixedly installed on the fixed disc (1), the clamping spring (28) is arranged between the clamping fixed seat (26) and the clamping driving member (27), and the clamping part (241) stably closes the hook-shaped opening of the hook base (3) under the elastic force of the clamping spring (28).

8. A topside module hoisting process based on the topside module hoisting system of any one of claims 1-7, characterized in that: The method comprises the following specific steps: S1, sequentially connecting one end of four connecting annular slings (4) to each hook base (3) and the other end to the lifting beam (11); S2, connecting one end of the four lifting annular slings (15) to the bearing beam (12) and the other end to the top of the offshore booster station upper block; S3, lifting the hook by the crane ship, so as to lift the offshore booster station upper block to the offshore booster station lower structure. S4, after welding the offshore booster station upper block and the offshore booster station lower structure, the connection between each lifting annular sling (15) and the offshore booster station upper block is released, and the lifting is completed.

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