Hoisting system and hoisting process for upper module of offshore booster station

Abstract

The invention discloses an offshore booster station upper module hoisting system and hoisting process, and belongs to the technical field of offshore hoisting, the offshore booster station upper module hoisting system comprises a lifting hook and a lifting appliance body, the lifting hook comprises four hook seats, the lifting appliance body comprises two hoisting beams and two bearing beams, the two hoisting beams are arranged in parallel, and the two bearing beams are arranged in parallel. The two ends, close to the length direction, of the two hoisting beams are connected to the four hook bases through connecting annular hoisting belts correspondingly, the two bearing hoisting beams are arranged in parallel and located at the bottoms of the two hoisting beams, and the two hoisting beams are connected with the two bearing hoisting beams through four connecting pieces; the two ends, close to the length direction of the bearing hanging beams, of the two bearing hanging beams are each provided with a hoisting annular hanging belt used for hoisting a workpiece. The hoisting device has the effect that the upper module of the offshore booster station can be conveniently and stably hoisted.

Description

Technical Field

[0001] The invention relates to the field of offshore hoisting, and in particular to an offshore booster station upper assembly hoisting system and a hoisting process. Background Art

[0002] The upper module of the offshore booster station is the key "link" connecting the offshore wind turbine generator set and the onshore centralized control center. It mainly plays a key role in collecting and boosting the electricity generated by the offshore wind turbines and transmitting it to the power grid through the onshore centralized control center. It is the core component of the offshore booster station and is crucial for the grid-connected power generation of offshore wind farms.

[0003] The installation process of the upper modules of offshore booster stations often relies on hoisting operations, which usually involve the precise coordination of hoisting rigging and ropes to achieve direct and effective hoisting of the upper modules of offshore booster stations. However, in actual operation, the weight distribution of the equipment inside the upper modules of offshore booster stations is often uneven, and this unevenness leads to the occurrence of weight eccentricity.

[0004] Weight eccentricity, in short, means that the weight of the equipment inside the module is not evenly distributed, but is biased. This biased phenomenon makes it difficult for the main hook used for lifting to maintain an ideal horizontal state. The tilt or unstable state of the main hook not only increases the instability during the lifting process, but may also cause the lifting path to deviate, thereby increasing the difficulty of controlling the lifting accuracy. Therefore, for the lifting operation of the upper module of the offshore booster station, how to achieve stable lifting of the upper module of the offshore booster station has become an urgent problem to be solved. Summary of the invention

[0005] In order to facilitate the stable hoisting of the upper assembly of the offshore booster station, the present application provides a hoisting system and a hoisting process for the upper assembly of the offshore booster station.

[0006] In the first aspect, the present application provides an offshore booster station upper assembly hoisting system, which adopts the following technical solution: A lifting system for an upper assembly of an offshore substation comprises a lifting hook and a lifting device body, wherein the lifting hook comprises four hook seats, and the lifting device body comprises two lifting beams and two load-bearing beams, wherein the two lifting beams are arranged in parallel, and the two ends of the two lifting beams close to their own length directions are respectively connected to the four hook seats through connecting annular slings, and the two load-bearing beams are arranged in parallel and located at the bottom of the two lifting beams, and the two lifting beams are connected to the two load-bearing beams through four connecting pieces, and the two ends of the two load-bearing beams close to their own length directions are provided with lifting annular slings for lifting workpieces.

[0007] By adopting the above technical scheme, when hoisting the upper assembly of the offshore booster station, the upper assembly of the offshore booster station is first connected by four hoisting annular slings, and then the hook is hoisted so that the hook drives the workpiece, that is, the upper assembly of the offshore booster station, to be hoisted as a whole through the connecting annular slings and the hoisting device body. The setting of the hoisting device body can evenly distribute the stress when hoisting the upper assembly of the offshore booster station, so that the upper assembly of the offshore booster station can better maintain balance during the hoisting process, reduce the risk of shaking and tilting, and is conducive to improving the overall hoisting stability, so as to facilitate the stable hoisting of the upper assembly of the offshore booster station.

[0008] Optionally, the lifting beam and the load-bearing beam are both composed of a plurality of beam bodies, and two adjacent beam bodies are respectively set as a first beam body and a second beam body, and the first beam body and the second beam body are fixed by bolts.

[0009] By adopting the above technical solution, the lifting beam and the load-bearing beam composed of multiple beams can remove a single beam for maintenance and replacement when a single beam is damaged, which facilitates the subsequent maintenance of the lifting beam and the load-bearing beam and ensures its performance.

[0010] Optionally, a first flange is fixedly connected to one end of the first beam body facing the second beam body, a second flange is fixedly connected to one end of the second beam body facing the first beam body, 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 the positioning block and plug-fitting with the positioning block is provided on one side of the second flange facing the first flange.

[0011] By adopting the above technical solution, the setting of the first flange and the second flange facilitates the realization of a stable connection between the first beam body and the second beam body. The cooperation of the positioning block and the positioning hole plays a role in positioning the first beam body and the second beam body during installation, which is beneficial to ensure the force stability of the first beam body and the second beam body during installation.

[0012] Optionally, a first reinforcing rib distributed circumferentially around the axis of the first flange and the first beam body is fixedly connected, and a second reinforcing rib distributed circumferentially around the axis of the second flange and the second beam body is fixedly connected.

[0013] By adopting the above technical scheme, the arrangement of the first reinforcement rib and the second reinforcement rib is conducive to ensuring the connection strength between the first flange and the first beam body and the second flange and the second beam body respectively, thereby fully ensuring the structural strength of the lifting beam and the load-bearing beam and improving the bearing capacity.

[0014] Optionally, the connecting member includes a connecting beam, and four connecting beams are distributed in a rectangular shape. One end of each connecting beam is fixedly installed on the lifting 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.

[0015] By adopting the above technical scheme, during the lifting process of the upper assembly of the booster station, the setting of the connecting beam makes it difficult for the connecting annular sling and the lifting annular sling to interfere with each other during the lifting process, which is beneficial to further ensure the stability of the workpiece, i.e., the upper assembly of the offshore booster station during lifting. In addition, the rotating setting of the connecting beam facilitates adaptive angle adjustment according to workpieces of different weights, thereby ensuring the lifting stability of the connecting annular sling.

[0016] Optionally, the positioning assembly includes a positioning rotating rod, a positioning fixing seat, a positioning clamping rod and a positioning spring, the positioning rotating rod is arranged in an arc shape and fixedly mounted on the connecting beam, the positioning fixing seat is fixedly mounted on the load-bearing suspension beam, the positioning rotating rod is penetrated and slidably engaged with the positioning fixing seat, the positioning rotating rod is provided with a plurality of positioning clamping holes distributed in its own length direction, the positioning clamping rod is rotatably mounted on the positioning fixing seat, the positioning fixing seat is provided with fixing holes arranged corresponding to each positioning clamping hole, when the positioning rotating rod rotates, the fixing holes correspond to each positioning clamping hole in sequence, the positioning spring is installed between the positioning fixing seat and the positioning clamping rod, and under the action of the elastic force of the positioning spring, one end of the positioning clamping rod penetrates into the fixing hole and is located in one of the positioning clamping holes.

[0017] By adopting the above technical solution, the setting of the positioning rotation rod, on the one hand, plays a role in limiting the rotation of the connecting beam, which is beneficial to further ensure the stability of the connecting beam during rotation; on the other hand, the connecting beam can be unlocked by pressing the positioning rotation rod, thereby making it easy to fix and unlock the connecting beam after rotation.

[0018] Optionally, the hook seat includes a limiting assembly, the limiting assembly includes a limiting block, a limiting rod and a limiting spring, the hook seat is provided with a limiting groove extending in the radial direction of the hook, the limiting block is slidably fitted in the limiting groove, the limiting rod is fixedly installed on the limiting block, the limiting rod is penetrated along the radial direction of the hook and slidably fits on the hook seat, the limiting spring is used to make the limiting block move in the direction away from the hook holding part, one end of the lifting annular sling is located at the bottom of the limiting block, and a limiting guide surface is provided on the top of the limiting block, and the limiting guide surface moves in the direction close to the hook seat when force is applied.

[0019] By adopting the above technical scheme, the limit block plays a further limiting role on the position of the lifting ring-shaped sling during the lifting process, so that the lifting ring-shaped sling is not easy to fall off from the hook seat, which is beneficial to further ensure the stability of the lifting ring-shaped sling when lifting the sling body. On the one hand, the limiting guide surface plays a guiding role during the installation of the lifting ring-shaped sling, which is convenient for quickly installing the lifting ring-shaped sling to the position connected to the hook holding part and located at the bottom of the limiting block. On the other hand, pulling the limiting rod to make the limiting block move in the direction close to the hook holding part can release the limitation of the lifting ring-shaped sling, thereby facilitating the removal of the lifting ring-shaped sling, which is convenient and quick.

[0020] Optionally, the hook also includes a fixed plate, and each of the hook seats is fixedly installed on the fixed plate. The hook seat is arranged in a hook shape, and the hook seat is provided with a locking assembly, and the locking assembly includes a locking lever, and the locking lever 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, the hook-shaped opening of the hook seat is closed or not. In normal state, the locking part closes the hook-shaped opening of the hook seat under the action of gravity of the locking drive part.

[0021] By adopting the above technical solution, force is applied to rotate the positioning drive part, so that the positioning part rotates together, so that the positioning part can realize the opening and closing of the hook-shaped opening of the hook seat, which is convenient and fast, thereby facilitating the removal of the connecting ring sling for the inspection and maintenance of the connecting ring sling.

[0022] Optionally, the locking assembly also includes a locking link, a locking fixing seat, a locking drive member and a locking spring. Four of the locking links and the locking levers are correspondingly arranged. One end of each of the locking links is rotatably mounted on each of the locking drive members, and the other end is rotatably mounted on the locking drive member. The locking drive member is penetrated in the vertical direction and slidably engaged with the locking fixing seat. The locking fixing seat is fixedly mounted on the fixed disk. The locking spring is arranged between the locking fixing seat and the locking drive member. The locking part stably closes the hook-shaped opening of the hook seat under the elastic force of the locking spring.

[0023] By adopting the above technical scheme, the setting of the locking spring is conducive to further ensuring the stability of the position of the locking part when closing the hook-shaped opening of the hook seat, and when force is applied to move the locking drive member, each locking connecting rod drives each locking lever to rotate together, which is convenient for synchronously realizing the opening and closing of multiple hook-shaped openings of the hook seats, and the operation is simpler.

[0024] In the second aspect, the present application provides a lifting process for the upper assembly of an offshore booster station, which adopts the following technical scheme: A lifting process for the upper assembly of an offshore booster station, comprising the following specific steps: S1, sequentially connecting one end of four connecting annular slings to each hook seat and the other end to the lifting beam. S2, connecting one end of the four lifting annular slings to the load-bearing beam and the other end to the top of the upper assembly of the offshore booster station. S3, lifting the hook by a crane ship, thereby lifting the upper assembly of the offshore booster station to the lower structure of the offshore booster station. S4, after welding the upper assembly of the offshore booster station and the lower structure of the offshore booster station, release the connection between each lifting annular sling and the upper assembly of the offshore booster station to complete the lifting.

[0025] By adopting the above technical scheme, during the lifting of the upper modules of the offshore substation, the setting of the lifting beams and the load-bearing beams plays a role in evenly distributing stress, so that the upper modules of the offshore substation can better maintain balance during the lifting process, reduce the risk of shaking and tilting, and are beneficial to improving the overall lifting stability, facilitating the stable lifting of the upper modules of the offshore substation.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The setting of the hoist body can evenly distribute the stress when hoisting the upper assembly of the offshore booster station, so that the upper assembly of the offshore booster station can better maintain balance during the hoisting process, reduce the risk of shaking and tilting, and is conducive to improving the overall hoisting stability and facilitating the stable hoisting of the upper assembly of the offshore booster station.

[0027] 2. The provision of the first reinforcement rib and the second reinforcement rib is conducive to ensuring the connection strength between the first flange and the first beam body and between the second flange and the second beam body, thereby fully ensuring the structural strength of the hoisting beam and the load-bearing beam and improving the bearing capacity.

[0028] 3. During the lifting process, the limit block further limits the position of the lifting ring sling, making it difficult for the lifting ring sling to fall off from the hook seat, which is beneficial to further ensure the stability of the lifting ring sling when lifting the sling body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0030] Figure 2 It is a schematic diagram of the main structure of the hook in Example 1 of the present application.

[0031] Figure 3 yes Figure 1 A partial enlarged schematic diagram of part A.

[0032] Figure 4It is a schematic diagram of the overall structure of Example 2 of the present application.

[0033] Figure 5 It is a schematic diagram of the main structure of the hook in Example 2 of the present application.

[0034] Figure 6 yes Figure 4 A partial enlarged schematic diagram of part B.

[0035] Description of reference numerals: 1. Fixed plate; 2. Stopper; 3. Hook seat; 4. Connecting annular sling; 5. Limit block; 6. Limit rod; 7. Limit spring; 8. Limit groove; 9. Limit guide surface; 10. Limit handle; 11. Lifting beam; 12. Load-bearing beam; 13. Lifting wheel; 14. Load-bearing wheel; 15. Lifting annular 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 lever; 241. Positioning portion; 242. Positioning drive portion; 25. Positioning connecting rod; 26. Positioning fixing seat; 27. Positioning drive member; 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 DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses an offshore booster station upper assembly hoisting system.

[0038] Example 1.

[0039] Reference Figure 1 and Figure 2 The upper assembly lifting system of the offshore booster station includes a hook and a lifting device body, wherein the hook includes a fixed plate 1, four shifting parts 2 and four hook seats 3. The fixed plate 1 is in the shape of a circular plate, and each hook seat 3 and the shifting part 2 are fixedly installed on the top of the fixed plate 1 and are evenly distributed around the axis of the fixed plate 1.

[0040] Reference Figure 2 Each stopper 2 is close to the bottom plate axis and is arranged opposite to each hook seat 3. A connecting annular sling 4 is arranged between each stopper 2 and the hook seat 3 to achieve a stable connection with the sling body through the connecting annular sling 4. In order to further ensure the stability of the position of the connecting annular sling 4, the hook seat 3 is provided with a limiting component for limiting the connecting annular sling 4.

[0041] Continue to refer to Figure 2 Specifically, the limiting assembly includes a limiting block 5, a limiting rod 6 and a limiting spring 7, wherein a limiting groove 8 extending in the radial direction of the fixed disk 1 is opened at the free end of the hook holding portion near the top thereof, and the limiting groove 8 extends to the side of the hook seat 3 near the stop portion 2, and the limiting block 5 slides and fits in the limiting groove 8, and 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 portion 2. The limiting block 5 abuts against the top of the stop portion 2 under the elastic force of the limiting spring 7, thereby realizing stable limiting of the position of the connected annular sling 4.

[0042] Continue to refer to Figure 2 The top of the limit block 5 is provided with an arc-shaped limit guide surface 9, which moves toward the direction close to the hook holding portion when subjected to force, so as to facilitate the quick placement of the connecting annular sling 4 between the stop portion 2 and the hook seat 3. One end of the limit rod 6 is fixedly installed on the limit block 5, and the other end is penetrated along the radial direction of the bottom plate and slidably matched with the hook seat 3, so that by pulling the limit rod 6, the limit block 5 moves together, thereby releasing the limit on the position of the connecting annular sling 4. The end of the limit rod 6 away from the limit block 5 is fixedly connected to the limit handle 10, so that the limit rod 6 can be moved by applying force through the limit handle 10.

[0043] Reference Figure 1 and Figure 3 The sling body includes two lifting beams 11 and two load-bearing beams 12, wherein the two lifting beams 11 are arranged in parallel, and both ends of the two lifting beams 11 close to their own length directions are rotatably installed with lifting wheels 13, and one end of each connecting annular sling 4 away from each hook holding part is respectively wound around each lifting wheel 13 to achieve a stable connection between the lifting beams 11 and the hook.

[0044] Reference Figure 3 The two load-bearing hanging beams 12 are arranged in parallel and are both located at the bottom of the two lifting hanging beams 11. The two load-bearing hanging beams 12 and the two lifting hanging beams 11 are arranged to form a rectangle. The two load-bearing hanging beams 12 are rotatably installed with load-bearing hanging wheels 14 at both ends near their own length direction. The load-bearing hanging wheels 14 are surrounded by lifting annular slings 15 for stably lifting the workpiece, i.e., the upper assembly of the offshore booster station.

[0045] Reference Figure 1 and Figure 3 In order to prevent the lifting annular sling 15 and the connecting annular sling 4 from interfering with each other and further ensure the stability of the workpiece during lifting, a connecting piece is provided between the lifting beam 11 and the load-bearing beam 12. In the embodiment of the present application, the connecting piece includes a connecting beam 16. There are four connecting beams 16 distributed in a rectangular shape. 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 to achieve a stable connection between the lifting beam 11 and the load-bearing beam 12.

[0046] Continue to refer to Figure 1 and Figure 3 In order to facilitate the subsequent inspection and maintenance of the lifting beam 11 and the load-bearing beam 12, the lifting beam 11 and the load-bearing beam 12 are composed of multiple beam bodies 17. Specifically, two adjacent beam bodies 17 are respectively set as a first beam body 171 and a second beam body 172, wherein the first beam body 171 is fixedly connected with a first flange 18 at one end facing the second beam body 172, and the second beam body 172 is fixedly connected with a second flange 19 at one end facing the first beam body 171. The first flange 18 and the second flange 19 are fixed by bolts that are evenly distributed circumferentially around their own axes to achieve a stable connection between the first flange 18 and the second flange 19.

[0047] Reference Figure 3 In order to ensure the stability of the position of the first flange 18 and the second flange 19 when they are fixed by bolts, a plurality of positioning blocks 20 uniformly distributed around its own axis are fixedly connected to the side of the first flange 18 facing the second flange 19. In the embodiment of the present application, the positioning blocks 20 are cylindrical, and the positioning blocks 20 and the bolts for fixing the first flange 18 and the second flange 19 are staggered. A positioning hole 21 corresponding to the positioning block 20 and plugged with the positioning block 20 is opened on the side of the second flange 19 facing the first flange 18, so as to play a role in stabilizing the positioning of the first flange 18 and the second flange 19 when they are connected.

[0048] Continue to refer to Figure 3 A first reinforcing rib 22 evenly distributed around its own axis is fixedly connected between the first flange 18 and the first beam body 171, and a second reinforcing rib 23 evenly distributed around its own axis is fixedly connected between the second flange 19 and the second beam body 172 to ensure the overall structural strength of the lifting beam 11 and the load-bearing beam 12, thereby achieving stable bearing on the upper assembly of the offshore substation.

[0049] The implementation principle of Example 1 is: when it is necessary to hoist the upper assembly of the offshore substation, first connect the upper assembly of the offshore substation through four hoisting annular slings 15, and then hoist the hook so that the hook drives the workpiece, that is, the upper assembly of the offshore substation, to be hoisted as a whole through the connecting annular sling 4 and the hoist body. The setting of the hoist body can evenly distribute the stress when hoisting the upper assembly of the offshore substation, so that the upper assembly of the offshore substation can better maintain balance during the hoisting process, reduce the risk of shaking and tilting, which is beneficial to improve the overall hoisting stability and facilitate the stable hoisting of the upper assembly of the offshore substation.

[0050] Example 2.

[0051] Reference Figure 4The difference between this embodiment and embodiment 1 is that the specific settings of the hook and the connecting piece are different. Specifically, the hook in the embodiment of the present application includes a fixed plate 1 and four hook seats 3. Each hook seat 3 is fixedly installed at the bottom of the fixed plate 1 and is evenly distributed around the axis of the fixed plate 1. In the embodiment of the present application, the hook seat 3 is arranged in a hook shape.

[0052] Reference Figure 4 and Figure 5 The hook seat 3 is provided with a locking assembly, which includes a locking lever 24, a locking connecting rod 25, a locking fixing seat 26, a locking driving member 27 and a locking spring 28, wherein the locking lever 24 includes a locking portion 241 and a locking driving portion 242, the locking portion 241 is rotatably mounted on the hook seat 3, the locking driving portion 242 is fixedly mounted on one end of the locking portion 241, and the locking portion 241 closes or opens the hook-shaped opening of the hook seat 3 when it rotates.

[0053] Continue to refer to Figure 4 and Figure 5 The locking seat 26 is coaxially fixedly installed at the bottom of the fixed disk 1, the locking driving member 27 is vertically penetrated and slidably matched with 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 driving member 27. The locking driving member 27 moves in the direction away from the fixed disk 1 under the elastic force of the locking spring 28. Four locking links 25 are provided corresponding to the locking stopper 24, one end of each locking link 25 is rotatably installed on the locking driving member 27, and the other end is rotatably installed on each locking driving part 242. The locking part 241 stably closes the hook-shaped opening of the hook seat 3 under the action of its own gravity and the elastic force of the locking spring 28. When the locking driving member 27 is pressed, each locking link 25 drives each locking stopper 24 to rotate together, so as to facilitate the synchronous opening and closing of the hook-shaped openings of multiple hook seats 3, and the operation is more convenient.

[0054] Reference Figure 4 and Figure 6 In the embodiment of the present application, the connecting member includes a connecting beam 16, and there are four connecting beams 16 distributed in a rectangular shape. One end of each connecting beam 16 is fixedly installed on the lifting beam 11, and the other end is rotatably installed on the load-bearing beam 12 around the axis of the lifting beam 11. The load-bearing beam 12 is provided with a positioning component for positioning the connecting beam 16.

[0055] Reference Figure 6Specifically, the positioning assembly includes a positioning rotating rod 29, a positioning fixing seat 30, a positioning clamping rod 31 and a positioning spring 32. The positioning rotating rod 29 is arranged in an arc shape and fixedly mounted on the connecting beam 16. The positioning fixing seat 30 is fixedly mounted on the load-bearing suspension beam 12. The positioning rotating rod 29 is penetrated and slidably matched with the positioning fixing seat 30. The side of the positioning rotating rod 29 away from the connecting beam 16 is provided with a plurality of positioning clamping holes 33 penetrating and distributed along the length direction thereof. The positioning clamping rod 31 is rotatably mounted on the positioning fixing seat 30. The positioning fixing seat 30 is provided with fixing holes 34 penetrating horizontally. When the positioning rotating rod 29 rotates, the fixing holes 34 correspond to the positioning clamping holes 33 in sequence.

[0056] 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 rod 31. In normal state, one end of the positioning clamp rod 31 penetrates the fixing hole 34 and is located in one of the positioning clamp holes 33 under the elastic force of the positioning spring 32, so as to fix the position of the connecting beam 16. The setting of rotating and fixing the connecting beam 16 is convenient for adaptive angle adjustment according to the hoisting workpieces of different weights, so as to ensure the hoisting stability of the connecting ring sling 4.

[0057] Continue to refer to Figure 6 In order to ensure the stability of the positioning rod 31 when it releases the fixing of the connecting beam 16, the positioning rod 31 is rotatably installed with a positioning bolt 35, and the positioning fixing seat 30 is provided with a positioning screw hole 36 that is threadedly matched with the positioning bolt 35. When the positioning bolt 35 is threadedly matched with the positioning screw hole 36, the positioning rod 31 releases the fixing of the connecting beam 16, so that the positioning bolt 35 can realize the limiting effect of the position of the positioning rod 31.

[0058] The implementation principle of Example 2 is the same as that of Example 1, with the main difference being that, on the one hand, it is convenient to open and close the hook-shaped openings of multiple hook seats 3 by synchronizing the movement of the positioning drive member 27, and the operation is simpler; on the other hand, it is convenient to realize adaptive angle adjustment of workpieces of different weights, i.e., the upper assembly of the offshore booster station, by rotating the connecting beam 16, which is beneficial to further ensure the hoisting stability of the connected annular sling 4 when hoisting workpieces of different weights.

[0059] The embodiment of the present application also discloses a lifting process for the upper assembly of the offshore booster station. The lifting process for the upper assembly of the offshore booster station includes the following specific steps: S1, sequentially connecting one end of four connecting annular slings 4 to each hook seat 3 and the other end to the lifting beam 11; S2, connecting one end of four lifting annular slings 15 to the load-bearing beam 12 and the other end to the top of the upper assembly of the offshore booster station; S3, lifting the hook by a crane ship, thereby lifting the upper assembly of the offshore booster station to the lower structure of the offshore booster station; S4, after welding the upper assembly of the offshore booster station and the lower structure of the offshore booster station, release the connection between each lifting annular sling 15 and the upper assembly of the offshore booster station to complete the lifting.

[0060] The implementation principle of a process for lifting the upper assembly of an offshore substation in an embodiment of the present application is as follows: during the lifting of the upper assembly of the offshore substation, the setting of the lifting beam 11 and the load-bearing beam 12 plays a role in uniformly distributing stress, so that the upper assembly of the offshore substation can better maintain balance during the lifting process, reduce the risk of shaking and tilting, and is beneficial to improving the overall lifting stability, thereby facilitating the stable lifting of the upper assembly of the offshore substation.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An offshore booster station upper module hoisting system, characterized by: The invention comprises a hook and a sling body, wherein the hook comprises four hook seats (3), and the sling body comprises two lifting beams (11) and two load-bearing beams (12). The two lifting beams (11) are arranged in parallel, and the two ends of the two lifting beams (11) close to their own length direction are respectively connected to the four hook seats (3) through connecting annular slings (4). The two load-bearing beams (12) are arranged in parallel and located at the bottom of the two lifting beams (11). The two lifting beams (11) are connected to the two load-bearing beams (12) through four connecting pieces, and the two ends of the two load-bearing beams (12) close to their own length direction are both provided with lifting annular slings (15) for lifting workpieces.

2. The offshore booster station upper assembly hoisting system according to claim 1, characterized in that: The hoisting beam (11) and the load-bearing beam (12) are both composed of a plurality of beam bodies (17), and two adjacent beam bodies (17) are respectively configured as a first beam body (171) and a second beam body (172), and the first beam body (171) and the second beam body (172) are fixed by bolts.

3. The offshore booster station upper assembly hoisting system according to claim 2, characterized in that: The first beam body (171) is fixedly connected to one end of the first beam body (171) facing the second beam body (172) with a first flange (18), the second beam body (172) is fixedly connected to one end of the first beam body (171) with a second flange (19), the first flange (18) and the second flange (19) are fixed by bolts, the first flange (18) is fixedly connected to one side of the second flange (19) facing the second flange (19) with a positioning block (20), and the second flange (19) is provided with a positioning hole (21) corresponding to the positioning block (20) and plug-fitting with the positioning block (20) on one side of the first flange (18).

4. The offshore booster station upper assembly hoisting system according to claim 3, characterized in that: A first reinforcing rib (22) distributed circumferentially around the first axis is fixedly connected between the first flange (18) and the first beam body (171), and a second reinforcing rib (23) distributed circumferentially around the second axis is fixedly connected between the second flange (19) and the second beam body (172).

5. The offshore booster station upper assembly hoisting system according to claim 1, characterized in that: The connecting member comprises a connecting beam (16), wherein four connecting beams (16) are distributed in a rectangular shape, one end of each connecting beam (16) is fixedly mounted on a lifting beam (11), and the other end is rotatably mounted on a bearing beam (12), and the bearing beam (12) is provided with a positioning component for positioning the connecting beam (16).

6. The offshore booster station upper assembly hoisting system according to claim 5, characterized in that: The positioning assembly comprises a positioning rotating rod (29), a positioning fixing seat (30), a positioning clamping rod (31) and a positioning spring (32); the positioning rotating rod (29) is arranged in an arc shape and is fixedly mounted on the connecting beam (16); the positioning fixing seat (30) is fixedly mounted on the load-bearing suspension beam (12); the positioning rotating rod (29) is penetrated and slidably matched with the positioning fixing seat (30); the positioning rotating rod (29) is provided with a plurality of positioning clamping holes (33) distributed in its length direction; the positioning clamping rod (31) The positioning fixing seat (30) is rotatably mounted, and the positioning fixing seat (30) is provided with fixing holes (34) corresponding to the positioning clamping holes (33). When the positioning rotating rod (29) rotates, the fixing holes (34) correspond to the positioning clamping holes (33) in sequence. The positioning spring (32) is mounted between the positioning fixing seat (30) and the positioning clamping rod (31). Under the action of the elastic force of the positioning spring (32), one end of the positioning clamping rod (31) penetrates the fixing hole (34) and is located in one of the positioning clamping holes (33).

7. The offshore booster station upper assembly hoisting system according to claim 1, characterized in that: The hook seat (3) includes a limit assembly, which includes a limit block (5), a limit rod (6) and a limit spring (7). The hook seat (3) is provided with a limit groove (8) extending along the radial direction of the hook. The limit block (5) is slidably fitted in the limit groove (8). The limit rod (6) is fixedly installed on the limit block (5). The limit rod (6) is penetrated along the radial direction of the hook and slidably fitted on the hook seat (3). The limit spring (7) is used to move the limit block (5) in a direction away from the hook holding portion. One end of the hoisting annular sling (15) is located at the bottom of the limit block (5). A limit guide surface (9) is provided on the top of the limit block (5). When the limit guide surface (9) is subjected to force, it moves in a direction close to the hook seat (3).

8. The offshore booster station upper assembly hoisting system according to claim 1, characterized in that: The hook also includes a fixed plate (1), each of the hook seats (3) is fixedly mounted on the fixed plate (1), the hook seat (3) is arranged in a hook shape, and the hook seat (3) is provided with a locking assembly, the locking assembly includes a locking lever (24), the locking lever (24) includes a locking portion (241) and a locking driving portion (242), the locking portion (241) is rotatably mounted on the hook seat (3), the locking driving portion (242) is fixedly mounted on one end of the locking portion (241), the locking portion (241) closes or does not close the hook-shaped opening of the hook seat (3) when the locking portion (241) rotates, and in normal state, the locking portion (241) closes the hook-shaped opening of the hook seat (3) under the action of gravity of the locking driving portion (242).

9. The offshore booster station upper assembly hoisting system according to claim 8, characterized in that: The locking assembly also includes a locking link (25), a locking fixing seat (26), a locking driving member (27) and a locking spring (28). Four locking links (25) are provided corresponding to the locking blocking rod (24). One end of each of the locking links (25) is rotatably mounted on each of the locking driving parts (242), and the other end is rotatably mounted on the locking driving member (27). The locking driving member (27) is vertically penetrated and slidably engaged with the locking fixing seat (26). The locking fixing seat (26) is fixedly mounted on the fixed disk (1). The locking spring (28) is provided between the locking fixing seat (26) and the locking driving member (27). Under the elastic force of the locking spring (28), the locking part (241) stably closes the hook-shaped opening of the hook seat (3).

10. A process for hoisting an upper assembly of an offshore booster station, based on a system for hoisting an upper assembly of an offshore booster station according to any one of claims 1 to 9, characterized in that: The specific steps include: S1, sequentially connect one end of four connecting annular slings (4) to each hook seat (3) and the other end to a lifting beam (11); S2, connecting one end of four hoisting annular slings (15) to the load-bearing sling beam (12) and the other end to the top of the upper module of the offshore booster station; S3, lifting the hook by means of a crane ship, thereby lifting the upper assembly of the offshore booster station to the lower structure of the offshore booster station; S4, after welding the upper assembly of the offshore booster station and the lower structure of the offshore booster station, release the connection between each hoisting annular sling (15) and the upper assembly of the offshore booster station to complete the hoisting.

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