Superblock and offshore converter station
By designing an upper module that includes a platform, first leg, and lifting device, the problem of a high center of gravity during transportation was solved, enabling stable transportation and efficient assembly, reducing costs and improving the installation efficiency of offshore converter stations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUADIAN HEAVY IND CO LTD
- Filing Date
- 2026-02-05
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, the upper module has a high center of gravity during transportation, which places high demands on the load-bearing capacity and stability of the transport vessel. This results in a limited number of transport vessels and high costs, which affects the development of the offshore wind power industry in deep and remote waters.
The upper block design includes a platform, a first pile leg, and a lifting device. The lifting device consists of a fixed frame, telescopic components, and positioning components. By lowering the platform's center of gravity during transportation and utilizing the cooperation of the telescopic components and positioning components, the platform can be stably lifted and assembled.
The requirements for the load capacity and stability of transport ships have been reduced, the number of applicable transport ships has been increased, transportation costs have been reduced, the assembly efficiency of offshore converter stations has been improved, and the lifting equipment can be reused, reducing operating costs.
Smart Images
Figure CN121896955A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of marine converter technology, specifically to a top module and a marine converter station. Background Technology
[0002] The development of offshore wind farms in deep and deep waters is a future trend. The demand for offshore converter stations required for flexible DC transmission is enormous. The upper modules of offshore converter stations are large in size, heavy in weight, and have a high center of gravity. The upper modules can reach tens of thousands of tons, which exceeds the lifting capacity of conventional floating cranes. Therefore, the upper modules are usually installed using the floating method.
[0003] In related technologies, the positioning between the platform and the legs of the upper module is problematic. During transportation, the platform is relatively high, resulting in a high center height of the upper module. This places high demands on the load-bearing capacity and stability of the transport vessel. The number of transport vessels that meet these requirements is small and the cost is high, which is not conducive to the rapid development of the deep-sea offshore wind power industry. Summary of the Invention
[0004] This invention provides a superstructure and an offshore converter station to solve the problem in the prior art where the superstructure has a high center of gravity during transportation, which places high demands on the load-bearing capacity and stability of the transport ship.
[0005] In a first aspect, the present invention provides an upper module for an offshore converter station, comprising: a platform; a first leg extending through the platform, the lower end of the first leg abutting against the jacket of the offshore converter station; and a lifting device comprising a fixed frame, a telescopic member, and two positioning members, wherein the fixed frame is detachably connected to the platform and sleeved on the first leg, the positioning members are connectable to or detachable from the first leg, the telescopic member is telescopically configured and connected between the two positioning members, one positioning member is connected to the fixed frame, and the other positioning member is spaced apart from the fixed frame.
[0006] Beneficial Effects: In the upper module of this embodiment, during transportation, the platform can be positioned close to the lower end of the first leg. The lower center of gravity of the upper module reduces the load-bearing capacity and stability requirements of the transport vessel, allowing for a larger number of transport vessels to meet the upper module's requirements, thus reducing costs. It also eliminates the need for pre-booking and venting of transport vessels, improving the assembly efficiency of the offshore converter station. Once the upper module is in place, the lower end of the first leg is abutted against the jacket of the offshore converter station. The lower positioning member is fixed to the first leg, the upper positioning member is separated from the first leg, the telescopic member extends, and the upper positioning member rises, thereby lifting the platform. Then, the upper positioning member is fixed to the first leg, the lower positioning member is separated from the first leg, the telescopic member retracts, and the lower positioning member rises. Repeating these steps continuously raises the platform to the designated position. At this point, the first leg and the platform are fixed, completing the assembly of the offshore converter station. Since the offshore converter station is almost a fixed piece of equipment after assembly and the upper module will not be moved, the platform and lifting device can be separated. The lifting device can be applied to the next upper module, realizing the reuse of the lifting device and reducing the use cost of the upper module.
[0007] In one optional embodiment, the fixing frame is provided with a first positioning part, the platform is provided with a second positioning part, and the first positioning part and the second positioning part are connected.
[0008] Beneficial effects: It enables pre-positioning between the fixed frame and the platform, thereby improving the installation efficiency between the platform and the lifting device, and thus improving the ease of use of the lifting device.
[0009] In one alternative embodiment, the upper assembly further includes a locking element, comprising a first locking part and a second locking part, the first locking part being connected to the fixing frame and the second locking part being connected to the platform, the locking element being switchable between a locked state and an unlocked state, wherein in the locked state, the first locking part and the second locking part are connected, and in the unlocked state, the first locking part and the second locking part are separated.
[0010] Beneficial effects: In the locked state, the locking mechanism secures the relative position between the frame and the platform, preventing relative displacement and ensuring the lifting device can reliably raise the platform's height. In the unlocked state, the frame and platform can move relative to each other, allowing the lifting device to be detached from the platform for easy reuse and reduced operating costs.
[0011] In one alternative implementation, there are multiple telescopic members, which are spaced apart around the first pile leg.
[0012] Beneficial effects: It can improve the uniformity of displacement between the two positioning components, which helps to ensure the platform can be raised stably, avoid problems such as platform flipping or tilting, and improve the safety of use.
[0013] In one optional embodiment, one of the positioning elements is an upper positioning element and the other is a lower positioning element, with the upper positioning element located above the lower positioning element; the lifting device further includes a buffer structure that abuts against the upper wall of the upper positioning element and the fixing frame.
[0014] Beneficial effects: When the upper positioning component moves upward, the buffer structure can elastically deform to buffer and absorb the pressure between the upper positioning component and the upper wall of the fixed frame, so that the upper positioning component and the upper wall of the fixed frame can elastically transmit force, reducing the probability of damage to the upper positioning component and the upper wall of the fixed frame due to rigid force transmission.
[0015] In one optional embodiment, the lifting device further includes a suspension rod comprising an elastic portion and a rigid portion, the elastic portion being connected to the upper surface of the fixed frame, the rigid portion passing through the fixed frame, and the rigid portion being connected to the elastic portion and the upper positioning member.
[0016] Beneficial effects: When the upper positioning member moves downward, the upper positioning member applies tension to the elastic part through the rigid part. The elastic part can deform elastically to buffer and absorb the tension between the upper positioning member and the upper wall of the fixed frame, so that the upper positioning member and the upper wall of the fixed frame can elastically transmit force, reducing the probability of damage to the upper positioning member and the upper wall of the fixed frame due to rigid force transmission.
[0017] In one optional embodiment, the upper block further includes: a second pile leg, which passes through the platform and is movable relative to the platform. The second pile leg is switchable between a supported state and a lifted state. In the supported state, the second pile leg abuts against the guide frame. In the lifted state, the second pile leg is spaced apart from the guide frame.
[0018] Beneficial effects: When the upper component is lifted upward using the lifting device, the second leg is in the lifting state, which avoids the second leg affecting the lifting of the platform and ensures the stability of the platform lifting. When the upper component is lifted into place, the second leg switches to the supporting state. At this time, the second leg can be welded to the jacket and the platform into an integrated structure to increase the connection strength between the jacket and the platform.
[0019] In one alternative embodiment, the upper block further includes a limiting member connected to the second leg and the platform, for at least limiting the second leg to a raised state.
[0020] Beneficial effects: The limiting component can limit the relative position between the second leg and the platform, preventing the second leg from swaying randomly relative to the platform and improving the positioning reliability between the second leg and the platform.
[0021] In one optional embodiment, the upper module further includes: a plurality of columns passing through the platform, wherein the first pile leg and the second pile leg pass through the plurality of columns.
[0022] Beneficial effects: By setting up columns, the movement of the first and second legs can be guided, improving the smoothness of their movement and preventing interference with other structures on the platform during movement, thus ensuring the platform's structural reliability. Furthermore, after the first and second legs are in place, they can be welded to the columns to improve their positioning reliability.
[0023] Secondly, the present invention also provides an offshore converter station, comprising: a jacket; and the aforementioned upper module, which is installed on the jacket.
[0024] Beneficial effects: The offshore converter station utilizes the above-mentioned upper module, which has the advantages of convenient transportation, reliable installation, ability to recycle parts, and reduced operating costs. Attached Figure Description
[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is one of the schematic diagrams illustrating the installation process of an offshore converter station according to an embodiment of the present invention.
[0027] Figure 2 This is the second schematic diagram of the installation process of the offshore converter station according to an embodiment of the present invention.
[0028] Figure 3 This is the third schematic diagram of the installation process of the offshore converter station according to an embodiment of the present invention.
[0029] Figure 4 The fourth schematic diagram of the installation process of the offshore converter station according to an embodiment of the present invention.
[0030] Figure 5 Fifth schematic diagram of the installation process of the offshore converter station according to an embodiment of the present invention.
[0031] Figure 6One of the structural schematic diagrams of the upper block in an embodiment of the present invention.
[0032] Figure 7 The second schematic diagram of the upper component structure in an embodiment of the present invention.
[0033] Figure 8 for Figure 7 A cross-sectional view along line AA.
[0034] Explanation of reference numerals in the attached figures:
[0035] 1. Superstructure; 2. Jacket; 21. Main Leg; 3. Offshore Converter Station; 4. Transport Ship; 41. Skid; 42. Slipway; 43. Separation Buffer Device; 44. Docking Buffer Device; 5. Sea Surface; 100. Platform; 200, First leg; 210, Slot; 300. Lifting device; 310. Fixing frame; 320. Telescopic component; 330. Positioning component; 331. Upper positioning component; 332. Lower positioning component; 333. Pin; 340. Buffer structure; 350. Suspension rod; 351. Elastic part; 352. Rigid part; 400. Second leg; 500. Column. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0037] The terms "first," "second," etc., are used for descriptive purposes only and have no sequential or technical meaning, nor should they be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Directional terms used in this application, such as "upper," "lower," "inner," and "outer," are merely for reference to the orientation shown in the accompanying drawings. The use of directional terms is for better and clearer explanation and understanding of this application, and not to indicate the orientation of the referred device or component in an actual application scenario.
[0038] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.
[0039] The terms "parallel" and "perpendicular" are relative to the current technological level, not absolute mathematical definitions. Slight deviations are permissible; approximations of parallelism or perpendicularity are acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, with the angle between them ranging from 0 to 5 degrees. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, with the angle between them ranging from 85 to 95 degrees.
[0040] The following is combined with Figures 1 to 8 The following describes embodiments of the present invention.
[0041] According to an embodiment of the present invention, in one aspect, an upper module 1 is provided for use in an offshore converter station 3. The upper module 1 includes a platform 100, a first leg 200, and a lifting device 300.
[0042] The first leg 200 is inserted through the platform 100, and the lower end of the first leg 200 abuts against the jacket 2 of the offshore converter station 3. The lifting device 300 includes a fixed frame 310, a telescopic member 320 and two positioning members 330. The fixed frame 310 is detachably connected to the platform 100 and sleeved on the first leg 200. The positioning member 330 can be connected to or separated from the first leg 200. The telescopic member 320 is telescopically arranged and connected between the two positioning members 330. One positioning member 330 is connected to the fixed frame 310, and the other positioning member 330 is spaced apart from the fixed frame 310.
[0043] For example, the telescopic component 320 may include one or more of a hydraulic cylinder, a pneumatic cylinder, and a drive motor. The positioning component 330 may be provided with a telescopic pin 333, and the outer peripheral surface of the first leg 200 may be provided with a slot 210. When the pin 333 is inserted into the slot 210, the positioning component 330 and the first leg 200 are fixed in relative position. When the pin 333 is disengaged from the slot 210, the positioning component 330 and the first leg 200 can be repositioned relative to each other. Furthermore, the lifting device 300 is arranged on the top deck of the upper module 1.
[0044] In the upper module 1 of this embodiment of the invention, during transportation, the platform 100 can be close to the lower end of the first pile leg 200. The center of gravity of the upper module 1 is relatively low, which can reduce the load-bearing capacity and stability requirements of the transport ship 4. As a result, a larger number of transport ships 4 can meet the requirements for transporting the upper module 1, which can reduce costs. There is no need to reserve or exhaust the transport ships 4, which is beneficial to improving the assembly efficiency of the offshore converter station 3.
[0045] After the upper module 1 is transported into place, the lower end of the first pile leg 200 is abutted against the jacket frame 2 of the offshore converter station 3. The positioning element 330, which is spaced apart from the fixed frame 310, is designated as the lower positioning element 332, and the positioning element 330 connected to the fixed frame 310 is designated as the upper positioning element 331. It should be noted that the positioning element 330 spaced apart from the fixed frame 310 can also be designated as the upper positioning element 331, and the positioning element 330 connected to the fixed frame 310 can also be designated as the lower positioning element 332. This is only an example and is not a limitation.
[0046] The lower positioning member 332 is fixed to the first leg 200, the upper positioning member 331 is separated from the first leg 200, the telescopic member 320 extends, the upper positioning member 331 rises, thereby driving the platform 100 to rise. Then, the upper positioning member 331 is fixed to the first leg 200, the lower positioning member 332 is separated from the first leg 200, the telescopic member 320 retracts, and the lower positioning member 332 rises. By continuously repeating the above steps, the platform 100 can be raised to the designated position. At this point, the first leg 200 and the platform 100 are fixed, completing the assembly of the offshore converter station 3.
[0047] Since the offshore converter station 3 is almost a fixed device after assembly and the upper module 1 will not be moved, the platform 100 and the lifting device 300 can be separated. The lifting device 300 can be applied to the next upper module 1, realizing the reuse of the lifting device 300 and reducing the usage cost of the upper module 1.
[0048] In some embodiments, the fixing frame 310 is provided with a first positioning part (not shown in the figure), and the platform 100 is provided with a second positioning part (not shown in the figure), and the first positioning part and the second positioning part are connected.
[0049] For example, one of the first positioning part and the second positioning part can be a positioning post, and the other can be a positioning hole, with the positioning post inserted into the positioning hole; or, one of the first positioning part and the second positioning part can be an electromagnet, and the other can be a magnetically attracted structure, with the first positioning part and the second positioning part magnetically attracted to each other; or, one of the first positioning part and the second positioning part can be constructed as a positioning groove, and the other can be constructed as a positioning protrusion, with the positioning protrusion inserted into the positioning groove and the two engaging in an anti-rotation fit.
[0050] By setting the first positioning part and the second positioning part, the pre-positioning between the fixed frame 310 and the platform 100 can be realized, thereby improving the installation efficiency between the platform 100 and the lifting device 300, and thus improving the ease of use of the lifting device 300.
[0051] In some embodiments, the upper block 1 further includes a locking element (not shown in the figure), the locking element includes a first locking part and a second locking part, the first locking part is connected to the fixing frame 310, the second locking part is connected to the platform 100, the locking element is switchable between a locked state and an unlocked state, in the locked state the first locking part and the second locking part are connected, in the unlocked state the first locking part and the second locking part are separated.
[0052] For example, the first locking part and the fixing frame 310 can be integrally formed. The first locking part can be a support leg on the fixing frame 310, and the second locking part can be a threaded fastener such as a bolt. The second locking part passes through the first locking part and is threadedly connected to the platform 100. By rotating the second locking part, the platform 100 and the fixing frame 310 can be fixed and separated. Alternatively, the first locking part can be a protrusion on the fixing frame 310, and the second locking part can be a buckle. The second locking part and the platform 100 can be rotatably connected. By rotating the buckle, the buckle can be engaged with the protrusion, or the buckle can be separated from the protrusion, thus achieving the fixation and separation of the platform 100 and the fixing frame 310.
[0053] In the locked state, the locking mechanism secures the relative position between the mounting bracket 310 and the platform 100, preventing relative displacement and ensuring that the lifting device 300 can reliably raise the height of the platform 100. In the unlocked state, the mounting bracket 310 and the platform 100 can move relative to each other, allowing the lifting device 300 to be detached from the platform 100 for easy reuse and reduced operating costs.
[0054] In some embodiments, such as Figure 7 As shown, there are multiple telescopic components 320, which are spaced apart around the first pile leg 200. In this way, the force is evenly distributed between the different areas of the two positioning components 330, improving the uniformity of the relative displacement between the two positioning components 330. This helps to ensure that the platform 100 can be raised stably, avoids problems such as the platform 100 flipping or tilting, and improves the safety of use.
[0055] In some embodiments, such as Figure 7 and Figure 8 As shown, one positioning element 330 is the upper positioning element 331, and the other positioning element 330 is the lower positioning element 332. The upper positioning element 331 is located above the lower positioning element 332. The lifting device 300 also includes a buffer structure 340, which abuts against the upper wall of the upper positioning element 331 and the fixing frame 310.
[0056] The buffer structure 340 may include multiple metal spring sheets, which may be stacked. When the upper positioning member 331 moves upward, the buffer structure 340 can elastically deform to buffer and absorb the pressure between the upper positioning member 331 and the upper wall of the fixing frame 310, so that the upper positioning member 331 and the upper wall of the fixing frame 310 can elastically transmit force, reducing the probability of damage to the upper positioning member 331 and the upper wall of the fixing frame 310 due to rigid force transmission.
[0057] In some embodiments, such as Figure 7 and Figure 8 As shown, the lifting device 300 also includes a suspension rod 350, which includes an elastic part 351 and a rigid part 352. The elastic part 351 is connected to the upper surface of the fixed frame 310, and the rigid part 352 passes through the fixed frame 310. The rigid part 352 is connected to the elastic part 351 and the upper positioning member 331.
[0058] The elastic part 351 may include multiple metal spring sheets, which may be stacked. When the upper positioning member 331 moves downward, the upper positioning member 331 applies a tensile force to the elastic part 351 through the rigid member. The elastic part 351 can elastically deform to buffer and absorb the tensile force between the upper positioning member 331 and the upper wall of the fixing frame 310, so that the upper positioning member 331 and the upper wall of the fixing frame 310 are elastically transmitted, reducing the probability of damage to the upper positioning member 331 and the upper wall of the fixing frame 310 due to rigid force transmission.
[0059] By cooperating with the suspension rod 350 and the buffer structure 340, the pressure and tension between the upper positioning member 331 and the upper wall of the fixed frame 310 can be buffered and absorbed. Furthermore, the elastic part 351 of the suspension rod 350 is located outside the fixed frame 310 and will not occupy the internal space of the fixed frame 310, thus avoiding interference with the buffer structure 340.
[0060] There are multiple suspension rods 350 and multiple buffer structures 340, which can be alternately and spaced apart along the circumference of the first pile leg 200.
[0061] In some embodiments, such as Figure 1 and Figure 5 As shown, the upper block 1 also includes a second pile leg 400, which is inserted through the platform 100 and is movable relative to the platform 100. The second pile leg 400 can switch between a support state and a lifting state. In the support state, the second pile leg 400 abuts against the guide frame 2. In the lifting state, the second pile leg 400 is spaced apart from the guide frame 2.
[0062] In other words, when the upper component is lifted upward using the lifting device 300, the second leg 400 is in the lifting state to avoid the second leg 400 affecting the lifting of the platform 100 and to ensure the stability of the lifting of the platform 100. When the upper component is lifted into place, the second leg 400 switches to the support state. At this time, the second leg 400 can be welded to the jacket frame 2 and the platform 100 into an integral structure to increase the connection strength between the jacket frame 2 and the platform 100.
[0063] There can be four first legs 200 arranged in a rectangle. There are at least two second legs 400, each located between two adjacent first legs 200, and the second legs 400 are symmetrically arranged to ensure the stability between the jacket 2 and the platform 100.
[0064] Furthermore, the upper block 1 also includes a limiting member, which is connected to the second leg 400 and the platform 100. The limiting member is used at least to limit the second leg 400 to the raised state.
[0065] For example, the limiting component can be manually or electrically operated. The limiting component can be a retractable protrusion or a latch mounted on the platform 100. By using the limiting component, the relative position between the second leg 400 and the platform 100 can be limited, preventing the second leg 400 from swaying relative to the platform 100 and improving the positioning reliability between the second leg 400 and the platform 100.
[0066] In some embodiments, the upper block 1 further includes a plurality of columns 500, which are inserted through the platform 100, and the first pile leg 200 and the second pile leg 400 are inserted through the plurality of columns 500. The columns 500 may be made of metal materials such as steel pipes.
[0067] By setting up the column 500, guidance can be provided for the movement of the first leg 200 and the second leg 400, improving the smoothness of their movement and preventing interference with other structures of the platform 100 during movement, thus ensuring the structural reliability of the platform 100. Furthermore, after the first leg 200 and the second leg 400 are in place, they can be welded to the column 500 to improve their positioning reliability.
[0068] According to an embodiment of the present invention, in another aspect, an offshore converter station 3 is also provided. The offshore converter station 3 includes a jacket 2 and an upper assembly 1, with the upper assembly 1 installed on the jacket 2. The lower end of the jacket 2 can be installed on the seabed, and the upper end of the jacket 2 extends beyond the sea surface 5, so that the upper assembly 1 extends beyond the sea surface 5.
[0069] The offshore converter station 3 according to the present invention has the advantages of convenient transportation, reliable installation, ability to recycle parts, and reduced operating costs by utilizing the above-mentioned upper module 1.
[0070] Referring to the attached diagram, the installation process of offshore converter station 3 is described with an example: First, the upper module 1 is pulled onto the transport ship 4 by the pre-laid slide 42 and the sliding shoe 41. A separation buffer device 43 (Deck Supporting Unit, DSU) is installed between the sliding shoe 41 and the upper module 1. Then, as Figures 1-3 As shown, after the construction of the jacket 2 is completed, the transport ship 4 floats the upper block 1 and enters between the main legs 21 of the jacket 2. The upper block 1 is above the jacket 2. It enters during high tide and controls the ballast draft of the transport ship 4 so that the lowest point of the first leg 200 is higher than the highest point of the main leg 21 of the jacket 2, leaving a safe distance to avoid collision. The first leg 200 is aligned with the docking buffer device 44 (Leg Mating Unit, LMU) at the top of the main leg 21 of the jacket 2. During low tide, the ballast of the transport ship 4 submerges, so that the first leg 200 abuts against the docking buffer device 44. The transport ship 4 continues to submerge, separating the buffer device 43 from the upper block 1, reaching a safe distance of more than 1m. The transport ship 4 then exits between the main legs 21 of the jacket 2. Next, as Figure 4 and Figure 5 As shown, the first pile leg 200 is welded and fixed to the guide frame 2. The lifting device 300 is started to lift the platform 100 of the upper block 1 until the designed height of the platform 100 is reached. The first pile leg 200 is fixed to the column 500 in the platform 100 by means of pins and welding. Then the second pile leg 400 is lowered. The second pile leg 400 contacts the main leg 21 of the guide frame 2 and is welded and fixed. The second pile leg 400 is fixed to the column 500 in the platform 100 by means of pins and welding. Finally, after the offshore converter station 3 is installed, the lifting device 300 is disassembled and reused in the next project.
[0071] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A superstructure module for an offshore converter station (3), characterized in that, include: Platform (100); The first leg (200) is installed on the platform (100), and the lower end of the first leg (200) abuts against the jacket (2) of the offshore converter station (3). The lifting device (300) includes a fixed frame (310), a telescopic member (320), and two positioning members (330). The fixed frame (310) is detachably connected to the platform (100) and sleeved on the first pile leg (200). The positioning member (330) can be connected to or separated from the first pile leg (200). The telescopic member (320) is telescopically arranged and connected between the two positioning members (330). One positioning member (330) is connected to the fixed frame (310), and the other positioning member (330) is spaced apart from the fixed frame (310).
2. The upper module according to claim 1, characterized in that, The fixing frame (310) is provided with a first positioning part, and the platform (100) is provided with a second positioning part, and the first positioning part and the second positioning part are connected.
3. The upper module according to claim 1, characterized in that, The upper block (1) also includes: The locking component includes a first locking part and a second locking part. The first locking part is connected to the fixing frame (310), and the second locking part is connected to the platform (100). The locking component is switchable between a locked state and an unlocked state. In the locked state, the first locking part and the second locking part are connected, and in the unlocked state, the first locking part and the second locking part are separated.
4. The upper module according to claim 1, characterized in that, There are multiple telescopic components (320), and the multiple telescopic components (320) are arranged at intervals around the first pile leg (200).
5. The upper module according to claim 1, characterized in that, One of the positioning elements (330) is an upper positioning element (331), and the other positioning element (330) is a lower positioning element (332), with the upper positioning element (331) located above the lower positioning element (332); The lifting device (300) further includes a buffer structure (340) which abuts against the upper wall of the upper positioning member (331) and the fixing frame (310).
6. The upper module (1) according to claim 5, characterized in that, The lifting device (300) further includes: The suspension rod (350) includes an elastic part (351) and a rigid part (352). The elastic part (351) is connected to the upper surface of the fixing frame (310), and the rigid part (352) passes through the fixing frame (310). The rigid part (352) is connected to the elastic part (351) and the upper positioning member (331).
7. The upper module according to claim 1, characterized in that, The upper block (1) also includes: The second pile leg (400) is inserted through the platform (100) and is movable relative to the platform (100). The second pile leg (400) can switch between a support state and a lifting state. In the support state, the second pile leg (400) abuts against the guide frame (2). In the lifting state, the second pile leg (400) is spaced apart from the guide frame (2).
8. The upper module according to claim 7, characterized in that, The upper block (1) also includes: A limiting member, connected to the second leg (400) and the platform (100), is used at least to limit the second leg (400) to a raised state.
9. The upper module according to claim 7, characterized in that, The upper block (1) also includes: Multiple columns (500) are installed on the platform (100), and the first pile leg (200) and the second pile leg (400) are installed on the multiple columns (500).
10. A marine converter station, characterized in that, include: catheter stent (2); The upper component (1) as described in any one of claims 1-9 is installed on the guide frame (2).