A wind turbine foundation transition piece outer platform

Abstract

The utility model discloses a kind of fan guide pipe frame foundation transition section outer platform, the transition section outer platform includes transition section main body, the top of transition section main body is fixedly connected with operation outer platform, the center of operation outer platform is fixedly connected with main compensation seat, transition section barrel is movably installed in the inside of main compensation seat, the outside of transition section barrel is fixedly connected with multiple groups of support box girder, the four corner of operation outer platform top is all fixedly connected with auxiliary compensation seat, the bottom of multiple groups of support box girder is all movably connected with auxiliary compensation seat by adjusting support leg, the inside of multiple groups of adjusting support leg is all installed with positioning assembly;Positioning assembly includes hollow strengthening frame fixedly connected in the inside of adjusting support leg, the bottom of hollow strengthening frame is fixedly connected with connecting column, the utility model is designed to realize the compensation of geological subsidence, so that subsequent installation after fan hub center reaches more optimal wind shear zone, improve the power generation efficiency of fan.

Description

Technical Field

[0001] This utility model belongs to the field of offshore wind turbine technology, specifically relating to an external platform for the transition section of a wind turbine jacket foundation. Background Technology

[0002] The outer platform of the jacket foundation transition section is an auxiliary structure located outside the jacket foundation transition section. It is mainly used to support construction operations, equipment installation and maintenance access. When the jacket and the transition section are closed, the outer platform provides welding operation space. The outer platform can integrate key components such as grouting pipeline interfaces and suction pump fixing points. As a permanent access for offshore wind turbine maintenance, the outer platform is usually equipped with anti-slip grating and safety railings to reduce the risk of working at height.

[0003] According to the search, CN217105194U discloses a novel wind turbine tower-jacket transition section structure, including jacket main legs, main leg reinforcing plates, bottom plates, bottom plate transverse beams, bottom plate longitudinal beams, support box beams, transition section main cylinder, main cylinder reinforcing ring plates, ring plate reinforcing ribs, main cylinder reinforcing sections, transition section doors, and transition section flanges.

[0004] The aforementioned patent can enhance the interaction between the wind turbine tower and the jacket, improve the overall rigidity of the transition section, and effectively transfer the load to the main leg of the jacket through the column, resulting in a more uniform and reasonable force distribution. However, when the transition section is installed, the height of the main body of the transition section is fixed, and the jacket may not be able to compensate for the foundation displacement due to geological settlement, which may result in the wind turbine hub center not reaching the optimal wind shear zone after installation, thereby reducing the power generation efficiency of the wind turbine. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an external platform for the transition section of a wind turbine jacket foundation. This external platform aims to solve the technical problem that, under existing technologies, the transition section of the jacket foundation may not be able to compensate for foundation displacement due to geological settlement, resulting in the wind turbine hub center not being able to reach a more optimal wind shear zone after installation, thereby reducing the wind turbine's power generation efficiency.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides an outer platform for the transition section of a wind turbine ductwork foundation. The outer platform includes a transition section body, an outer working platform fixedly connected to the top of the transition section body, a main compensation seat fixedly connected to the center of the outer working platform, a transition section cylinder movably installed inside the main compensation seat, multiple sets of support box beams fixedly connected to the outer side of the transition section cylinder, and auxiliary compensation seats fixedly connected to the four corners of the top of the outer working platform. The bottom ends of the multiple sets of support box beams are movably connected to the auxiliary compensation seats through adjustable legs, and positioning components are installed inside the multiple sets of adjustable legs.

[0009] The positioning assembly includes a hollow reinforcing frame fixedly connected inside the adjustable support leg. A connecting column is fixedly connected to the bottom of the hollow reinforcing frame. A first fixing sleeve and a second fixing sleeve are fixedly connected to the upper and lower ends of the connecting column, respectively. Multiple sets of positioning support rods are hinged to the outer side of the first fixing sleeve. A first linkage frame is hinged to the outer side of each of the multiple sets of second fixing sleeves. A hydraulic cylinder is installed between the top ends of the multiple sets of first linkage frames and the multiple sets of positioning support rods. The two ends of the hydraulic cylinder are respectively hinged to the first linkage frame and the positioning support rod. A second linkage frame is installed between the inner sides of the multiple sets of first linkage frames and the multiple sets of positioning support rods. The two ends of the multiple sets of second linkage frames are respectively hinged to the first linkage frame and the positioning support rod.

[0010] When using the transition section external platform of this technical solution, after connecting the main body of the transition section to the wind turbine duct frame, the main compensation seat and multiple sets of auxiliary compensation seats are welded and fixed through the base plate. Then, the transition section cylinder is hoisted and positioned, and the bottom end of the transition section cylinder is aligned with the main compensation seat and inserted. Multiple sets of adjusting legs are inserted into the interior of multiple sets of auxiliary compensation seats to complete the foundation positioning. Then, the insertion height of the transition section cylinder is adjusted according to the geological settlement height. After the height is adjusted, multiple sets of hydraulic cylinders are activated to push the first linkage frame. Under the transmission of multiple sets of second linkage frames, multiple sets of positioning support rods are simultaneously opened and pressed against the inner side wall of the auxiliary compensation seat, thereby positioning and fixing the height of the transition section cylinder. In order to ensure the connection strength, the connection between the adjusting legs and the auxiliary compensation seat is welded and fixed.

[0011] Preferably, a main support frame is fixedly connected to the inner side of the hollow reinforcement frame, and X-shaped frames are fixedly connected to all four sides of the hollow reinforcement frame.

[0012] Furthermore, both the first and second fixing sleeves are composed of two sets of half sleeves, and the two ends of the two sets of half sleeves are fixedly connected by multiple sets of fixing bolts.

[0013] Furthermore, a guardrail is fixedly connected to the edge of the top of the work platform.

[0014] Furthermore, the bottom ends of the main compensation seat and multiple sets of auxiliary compensation seats are welded to the working platform via a base plate, and multiple sets of first reinforcing ribs are fixedly connected between the base plate and the outer sides of the main compensation seat and auxiliary compensation seats.

[0015] Furthermore, an operating opening is provided on the outer side of the transition section cylinder, and a hatch is installed on the outer side of the operating opening.

[0016] Furthermore, a reinforcing ring is welded to the top of the transition section cylinder, and multiple sets of second reinforcing ribs are fixedly connected between the reinforcing ring and the outer side of the transition section cylinder.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] In this invention, through the coordinated design of the main compensation seat, transition section cylinder, support box, auxiliary compensation seat, adjusting legs, and positioning components, the main body of the transition section is connected to the wind turbine duct frame. The main compensation seat and multiple sets of auxiliary compensation seats are welded and fixed by the base plate. Then, the transition section cylinder is hoisted and positioned, with the bottom end of the transition section cylinder aligned with the main compensation seat and inserted. Multiple sets of adjusting legs are inserted into the interior of multiple sets of auxiliary compensation seats to complete the basic positioning. Subsequently, the insertion height of the transition section cylinder is adjusted according to the geological settlement height. After the height is adjusted, multiple sets of hydraulic cylinders are activated to push the first linkage frame. Under the transmission of multiple sets of second linkage frames, multiple sets of positioning struts are simultaneously opened and pressed against the inner wall of the auxiliary compensation seat, thereby fixing the height of the transition section cylinder. To ensure the connection strength, the connection between the adjusting legs and the auxiliary compensation seat is welded and fixed, thus realizing the compensation for geological settlement. This allows the wind turbine hub center to reach a more optimal wind shear zone after subsequent installation, improving the power generation efficiency of the wind turbine. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the external platform structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the transition section cylindrical structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the adjustable support leg structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the positioning component structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the positioning component of this utility model.

[0026] The markings in the attached diagram are as follows: 1. Transition section main body; 2. External working platform; 201. Guardrail; 3. Main compensation seat; 301. Base plate; 302. First reinforcing rib; 4. Transition section cylinder; 401. Working opening; 402. Hatch door; 403. Reinforcing ring; 404. Second reinforcing rib; 5. Support box girder; 6. Auxiliary compensation seat; 7. Adjustable outrigger; 8. Positioning assembly; 801. Hollowed-out reinforcing frame; 802. Connecting column; 803. First fixing sleeve; 804. Second fixing sleeve; 805. Positioning strut; 806. First linkage frame; 807. Hydraulic cylinder; 808. Second linkage frame; 809. Main support frame; 810. X-shaped frame; 811. Half set; 812. Fixing bolt. Detailed Implementation

[0027] This specific embodiment is an external platform for the transition section of a wind turbine jacket foundation, and its structural schematic diagram is as follows: Figure 1-6 As shown, the transition section outer platform includes an outer working platform 2 fixedly connected to the top of the transition section main body 1, a main compensation seat 3 fixedly connected to the center of the outer working platform 2, a transition section cylinder 4 movably installed inside the main compensation seat 3, multiple sets of support box beams 5 fixedly connected to the outside of the transition section cylinder 4, auxiliary compensation seats 6 fixedly connected to the four corners of the top of the outer working platform 2, the bottom ends of the multiple sets of support box beams 5 being movably connected to the auxiliary compensation seats 6 through adjusting legs 7, and positioning components 8 being installed inside the multiple sets of adjusting legs 7.

[0028] First, in this embodiment, the specific structure of the positioning component 8 is as follows:

[0029] The positioning component 8 includes a hollow reinforcing frame 801 fixedly connected inside the adjusting support leg 7. A connecting column 802 is fixedly connected to the bottom of the hollow reinforcing frame 801. A first fixing sleeve 803 and a second fixing sleeve 804 are fixedly connected to the upper and lower ends of the connecting column 802, respectively. Multiple sets of positioning support rods 805 are hinged to the outer side of the first fixing sleeve 803. A first linkage frame 806 is hinged to the outer side of each of the multiple sets of second fixing sleeves 804. A hydraulic cylinder 807 is installed between the top ends of the multiple sets of first linkage frames 806 and the multiple sets of positioning support rods 805, and the two ends of the hydraulic cylinder 807 are respectively hinged to the first linkage frame 806 and the positioning support rod 805. A second linkage frame 808 is installed between the inner sides of the multiple sets of first linkage frames 806 and the multiple sets of positioning support rods 805, and the two ends of the multiple sets of second linkage frames 808 are respectively hinged to the first linkage frame 806 and the positioning support rod 805. 05. After connecting the main body 1 of the transition section to the wind turbine duct frame, the transition section cylinder 4 is hoisted and positioned. The bottom end of the transition section cylinder 4 is aligned with the main compensation seat 3 and inserted. Multiple sets of adjusting legs 7 are inserted into the interior of multiple sets of auxiliary compensation seats 6 to complete the basic positioning. Then, the insertion height of the transition section cylinder 4 is adjusted according to the geological settlement height. After the height is adjusted, multiple sets of hydraulic cylinders 807 are activated to push the first linkage frame 806. Under the transmission of multiple sets of second linkage frames 808, multiple sets of positioning support rods 805 are simultaneously opened and pressed against the inner wall of the auxiliary compensation seat 6, thereby fixing the height of the transition section cylinder 4. In order to ensure the connection strength, the connection between the adjusting legs 7 and the auxiliary compensation seat 6 is welded and fixed, thereby realizing the compensation for geological settlement. This allows the wind turbine hub center to reach a better wind shear zone after subsequent installation, improving the power generation efficiency of the wind turbine.

[0030] Furthermore, a main support frame 809 is fixedly connected to the inner side of the hollow reinforcement frame 801, and X-shaped frames 810 are fixedly connected to all four sides of the hollow reinforcement frame 801. By using the main support frame 809 and multiple sets of X-shaped frames 810, the weight can be reduced while maintaining structural strength and stability.

[0031] Then, both the first fixing sleeve 803 and the second fixing sleeve 804 are composed of two sets of half sleeves 811. The two ends of the two sets of half sleeves 811 are fixedly connected by multiple sets of fixing bolts 812. The half sleeves 811 are installed and fixed on the outside of the connecting column 802 by fixing bolts 812, which facilitates the assembly and maintenance of the positioning component 8.

[0032] Furthermore, a guardrail 201 is fixedly connected to the top edge of the external work platform 2. While providing working space, the guardrail 201 protects the edge and improves the safety of the operation.

[0033] The bottom ends of the main compensation seat 3 and the multiple sets of auxiliary compensation seats 6 are welded to the working platform 2 through the base plate 301. Multiple sets of first reinforcing ribs 302 are fixedly connected between the base plate 301 and the outer side of the main compensation seat 3 and the auxiliary compensation seats 6. The main compensation seat 3 and the multiple sets of auxiliary compensation seats 6 are welded and fixed through the base plate 301, and the structure is strengthened by the multiple sets of first reinforcing ribs 302.

[0034] Secondly, a working port 401 is provided on the outside of the transition section cylinder 4, and a hatch 402 is installed on the outside of the working port 401. Through the hatch 402, one can enter the inside of the working port 401 to enter the interior of the transition section cylinder 4 for maintenance and work.

[0035] Finally, a reinforcing ring 403 is welded to the top of the transition section cylinder 4. Multiple sets of second reinforcing ribs 404 are fixedly connected between the reinforcing ring 403 and the outer side of the transition section cylinder 4. The reinforcing ring 403 is used to strengthen the connection between the supporting box beam 5 and the transition section cylinder 4, and the connection is further strengthened by the second reinforcing ribs 404.

[0036] When using the transition section external platform of this technical solution, after connecting the main body 1 of the transition section to the wind turbine duct frame, the main compensation seat 3 and multiple sets of auxiliary compensation seats 6 are welded and fixed through the base plate 301. Then, the transition section cylinder 4 is hoisted and positioned, and the bottom end of the transition section cylinder 4 is aligned with the main compensation seat 3 and inserted. Multiple sets of adjusting legs 7 are inserted into the interior of multiple sets of auxiliary compensation seats 6 to complete the basic positioning. Then, the insertion height of the transition section cylinder 4 is adjusted according to the geological settlement height. After the height is adjusted, multiple sets of hydraulic cylinders 807 are activated to push the first linkage frame 806. Under the transmission of multiple sets of second linkage frames 808, multiple sets of positioning support rods 805 are simultaneously opened and pressed against the inner side wall of the auxiliary compensation seat 6, thereby positioning and fixing the height of the transition section cylinder 4. In order to ensure the connection strength, the connection between the adjusting legs 7 and the auxiliary compensation seat 6 is welded and fixed. The whole operation process is simple and convenient. This utility model realizes the compensation of geological settlement through design, so that the center of the wind turbine hub reaches a better wind shear zone after subsequent installation, thereby improving the power generation efficiency of the wind turbine.

[0037] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A transition section outer platform for a wind turbine jacket foundation, the transition section outer platform comprising a transition section body (1); characterized in that, The top of the transition section body (1) is fixedly connected to the working platform (2), the center of the working platform (2) is fixedly connected to the main compensation seat (3), the transition section cylinder (4) is movably installed inside the main compensation seat (3), multiple sets of support box beams (5) are fixedly connected to the outside of the transition section cylinder (4), and auxiliary compensation seats (6) are fixedly connected to the four corners of the top of the working platform (2). The bottom ends of the multiple sets of support box beams (5) are movably connected to the auxiliary compensation seats (6) through adjusting legs (7), and positioning components (8) are installed inside the multiple sets of adjusting legs (7). The positioning component (8) includes a hollow reinforcing frame (801) fixedly connected inside the adjusting leg (7). A connecting column (802) is fixedly connected to the bottom of the hollow reinforcing frame (801). A first fixing sleeve (803) and a second fixing sleeve (804) are fixedly connected to the upper and lower ends of the connecting column (802), respectively. Multiple sets of positioning support rods (805) are hinged to the outer side of the first fixing sleeve (803). A first linkage frame (806) is hinged to the outer side of each of the multiple sets of second fixing sleeves (804). A hydraulic cylinder (807) is installed between the top of the first linkage frame (806) and the multiple sets of positioning support rods (805), and the two ends of the hydraulic cylinder (807) are respectively hinged to the first linkage frame (806) and the positioning support rod (805). A second linkage frame (808) is installed between the inner sides of the multiple sets of first linkage frames (806) and the multiple sets of positioning support rods (805), and the two ends of the multiple sets of second linkage frames (808) are respectively hinged to the first linkage frame (806) and the positioning support rod (805).

2. The external platform for the transition section of a wind turbine jacket foundation according to claim 1, characterized in that, The hollow reinforcing frame (801) is fixedly connected to the inner side of the main support frame (809), and X-shaped frames (810) are fixedly connected to all four sides of the hollow reinforcing frame (801).

3. The external platform for the transition section of a wind turbine jacket foundation according to claim 1, characterized in that, The first fixing sleeve (803) and the second fixing sleeve (804) are both composed of two sets of half sleeves (811), and the two ends of the two sets of half sleeves (811) are fixedly connected by multiple sets of fixing bolts (812).

4. The external platform for the transition section of a wind turbine jacket foundation according to claim 1, characterized in that, The edge of the top of the work platform (2) is fixedly connected to a guardrail (201).

5. The external platform for the transition section of a wind turbine jacket foundation according to claim 1, characterized in that, The bottom ends of the main compensation seat (3) and the multiple sets of auxiliary compensation seats (6) are all welded to the working platform (2) through the base plate (301). Multiple sets of first reinforcing ribs (302) are fixedly connected between the base plate (301) and the outer side of the main compensation seat (3) and the auxiliary compensation seat (6).

6. The external platform for the transition section of a wind turbine jacket foundation according to claim 1, characterized in that, The outer side of the transition section cylinder (4) is provided with a working port (401), and a hatch (402) is installed on the outer side of the working port (401).

7. The external platform for the transition section of a wind turbine jacket foundation according to claim 1, characterized in that, A reinforcing ring (403) is welded to the top of the transition section cylinder (4), and multiple sets of second reinforcing ribs (404) are fixedly connected between the reinforcing ring (403) and the outer side of the transition section cylinder (4).

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