A floating wind power platform of a tension leg mooring type
By adopting a tension structure on a floating wind power platform and using diagonal bracing, the problem of high weight and cost caused by the large amount of steel used in existing technologies has been solved, achieving the effect of reducing weight and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SHENDE OCEAN ENG CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-02
AI Technical Summary
The existing floating wind power platforms use a large amount of steel in their foundation support structure, resulting in heavy weight and high construction and assembly costs.
The structure employs a tension rod structure, including an intermediate support component, tension arms, and diagonal braces, forming a triangular truss structure. By using diagonal braces as diagonal supports, the amount of steel used is reduced, and the structure only bears tensile force, thus reducing weight and construction costs.
By reducing the amount of steel used, the overall weight and construction and assembly costs of the floating wind power platform were reduced, while the structural analysis was simplified and the impact of wave forces on the platform was reduced.
Smart Images
Figure CN224311952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of offshore wind power generation equipment technology, and in particular to a floating wind power generation platform with a tie rod tension structure. Background Technology
[0002] The foundation support structures of current floating wind turbine platforms (including column-mounted, semi-submersible, and tension leg types) are all rigid orthogonal plate structures made of steel plates, such as columns, bypasses, and struts. These structures withstand forces from different directions, including tension, compression, shear, and bending moments. Conventional bracing structures use a single rigid steel member that can withstand axial tension, compression, bending moments, and shear forces. However, due to the large amount of steel used in this conventional strut structure, it is relatively heavy, resulting in high construction and assembly costs.
[0003] Therefore, the aforementioned technical defects urgently need to be addressed. Summary of the Invention
[0004] The purpose of this invention is to provide a floating wind power generation platform with a tension rod structure, which reduces the amount of steel used and the overall weight, thereby reducing the cost of construction and assembly of the wind power generation platform.
[0005] The technical solution adopted by this utility model to solve the technical problem is as follows:
[0006] To address the aforementioned technical problems, the first aspect of this application provides a floating wind power generation platform with a rod tension structure, comprising: an intermediate support assembly;
[0007] The generator fan is rotatably connected to the intermediate support assembly;
[0008] At least three tension arms are welded to the intermediate support assembly;
[0009] There are at least three diagonal tie rods, which are set in correspondence with the tension arm. One end of the diagonal tie rod is connected to the intermediate support assembly, and the other end of the diagonal tie rod is connected to the tension arm.
[0010] The diagonal tie rod, together with the intermediate support assembly and the tension arm, forms a triangular truss structure. At least one of the intermediate support assembly and the tension arm is provided with a sealed cavity, which is used to provide buoyancy.
[0011] The present invention is further configured such that the intermediate support component includes:
[0012] A central column and tension arms are fixed on the central column, and several tension arms are evenly arranged around the circumference of the central column.
[0013] The tower is located on the central column, and the wind turbine is located at the end of the tower away from the central column.
[0014] The present invention is further configured such that both ends of the diagonal tie rod are provided with end connecting eye plates, and the end connecting eye plates are provided with end connecting eye plates. Both ends of the diagonal tie rod are respectively connected to the intermediate column and the tension arm through the end connecting eye plates.
[0015] The present invention is further configured such that at least three first eye plate connectors are evenly provided at the end of the middle column away from the tension arm, and the end connecting eye plate of the diagonal tie rod near the middle column is connected to the first eye plate connectors by a connecting pin.
[0016] The present invention is further configured such that a first eye plate connector is provided at the end of the tension arm away from the middle column, and the end of the diagonal tie rod near the tension arm is connected to the first eye plate connector by a connecting pin.
[0017] The present invention is further configured such that the tie rod is a metal steel tie rod.
[0018] The present invention is further configured such that a buoyancy component is provided at the end of the tension arm away from the intermediate support component. The buoyancy component is used to provide buoyancy. The buoyancy component includes at least three corner tubes, which are respectively located at the ends of the three tension arms away from the intermediate support component.
[0019] The present invention is further configured such that a tension leg is suspended at the end of the tension arm away from the intermediate support assembly, the tension leg is suspended below the angle tube, and the tension leg is used for mooring.
[0020] The present invention is further provided that the tie rod has a detachable tension adjustment device, which is used to adjust the length of the tie rod in order to adjust the tension of the tie rod.
[0021] The present invention is further configured such that the intermediate support component, the tension arm, and the corner tube are all cylindrical structures.
[0022] Beneficial Effects: Compared with existing technologies, this invention provides a floating wind power generation platform with a tie rod tension structure. This invention features at least three tension arms evenly welded around the periphery of the intermediate support component, and each tension arm is connected to the intermediate support component by a diagonal tie rod to stabilize the intermediate support component. The diagonal tie rods serve as a bracing structure, replacing the rod structure of traditional wind power generation platforms. The diagonal tie rods are slender rods whose bending moments at both ends are released through appropriate design, bearing only tensile force. This reduces steel usage, wave force, overall weight, and the construction and assembly costs of the wind power generation platform. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of a floating wind power generation platform with a tie rod tension structure according to this utility model;
[0025] Figure 2 This is a partial enlarged view of a floating wind power generation platform with a tie rod tension structure according to this utility model;
[0026] Figure 2-1 This is an enlarged view of another part of the structure of a floating wind power generation platform with a tie rod tension structure according to this utility model;
[0027] Figure 3 This is a schematic diagram of the second overall structure of a floating wind power generation platform with a tie rod tension structure according to this utility model;
[0028] Figure 4 This is a schematic diagram of the third overall structure of a floating wind power generation platform with a tie rod tension structure according to this utility model;
[0029] Figure 5 This is a schematic diagram of the fourth overall structure of a floating wind power generation platform with a tie rod tension structure according to this utility model;
[0030] In the diagram: 1. Intermediate support assembly; 11. Intermediate column; 111. First eye plate connector; 12. Tower; 2. Generating fan; 3. Tension arm; 32. Buoyancy assembly; 321. Angle tube; 322. Tension leg; 4. Diagonal tie rod; 41. End connecting eye plate; 42. Connecting pin; 43. Tension adjustment device. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] Furthermore, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.
[0035] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown in the figure, the floating wind power generation platform with a tension structure of inclined tie rod 44 provided by this utility model is a floating structure that supports offshore wind turbine generators, enabling them to operate stably in deep waters (typically exceeding 50-60 meters in depth). The main structure includes: an intermediate support assembly 1, a wind turbine 2, at least three tension arms 3, and at least three inclined tie rods 4. The wind turbine 2 is rotatably connected to the intermediate support assembly 1; the three tension arms 3 are welded to the intermediate support assembly 1; the inclined tie rods 4 are correspondingly arranged with the tension arms 3, one end of the inclined tie rod 4 connected to the intermediate support assembly 1, and the other end of the inclined tie rod 4 connected to the tension arm 3; wherein, the inclined tie rods 4, together with the intermediate support assembly 1 and the tension arms 3, form a triangular truss structure, and at least one of the intermediate support assembly 1 and the tension arms 3 is provided with a sealed cavity for providing buoyancy. The triangular truss structure is a structure formed by connecting members to each other at both ends with hinges.
[0036] It should be noted that the foundation frame of a conventional floating wind power platform is usually welded from steel plates. This structure uses a large amount of steel, resulting in a relatively large weight and high construction and assembly costs.
[0037] This invention features at least three tension arms 3 evenly welded around the periphery of the intermediate support component 1. Each tension arm 3 is connected to the intermediate support component 1 by a diagonal brace 4 to stabilize the intermediate support component 1. The diagonal brace 4 serves as a bracing structure, meaning at least three tension arms 3 are evenly distributed around the periphery of the intermediate support component 1, and each tension arm 3 is pulled by a diagonal brace 4, ensuring that the intermediate support component 1 remains at the center point and that there is mutual constraint between the intermediate support component 1 and each tension arm 3. This forms the basic frame of the floating wind power platform. Because the diagonal brace 4 is a very slender rod, its weight and volume are relatively small, reducing the amount of steel used, reducing wave forces, reducing overall weight, and lowering the construction and assembly costs of the wind power platform. It is important to note that the diagonal brace 4 structure itself is a rigid structure. Compared to cable structures, the cable-stayed structure 4 does not have the catenary deformation of cables in the vertical direction. Therefore, the cable-stayed structure 4 can eliminate the geometric nonlinear stiffness in addition to the elastic stiffness of the material along the length of the cable structure, thus simplifying the overall structural analysis.
[0038] Furthermore, such as Figure 1 As shown, the intermediate support assembly 1 includes: an intermediate column 11 and a tower 12. Tension arms 3 are fixed to the intermediate column 11, and several tension arms 3 are evenly arranged around the circumference of the intermediate column 11; three tension arms 3 are evenly arranged around the side wall of the intermediate column 11. The tower 12 is located on the intermediate column 11, and the wind turbine 2 is located on the tower 12 at the end away from the intermediate column 11.
[0039] Furthermore, such as Figure 2 and Figure 2-1 As shown, both ends of the tie rod 4 are equipped with end connecting plates 41, which connect both ends of the tie rod 4 to the intermediate column 11 and the tension arm 3, respectively. The end connecting plates 41 connect the tie rod 4 to the connecting pins 42, and the tie rod 4 and the end connecting plates 41 can be connected by welding. It should be noted that since the tie rod 4 is made of steel pipe, the connecting components at both ends to the end connecting plates 41 can be easily constructed by welding and connected by the connecting pins 42, eliminating the need for dedicated end connecting plates 41, such as shackles, at both ends of the cable tension structure.
[0040] Furthermore, such as Figure 2 As shown, at least three first eye plate connectors 111 are evenly provided at the end of the middle column 11 away from the tension arm 3. The end of the diagonal tie rod 4 near the middle column 11 is connected to the first eye plate connectors 111 by connecting pins 42.
[0041] It is understandable that each first eyeplate connector 111 corresponds to a tension arm 3. The first eyeplate connector 111 has a through connection hole, and the connecting pin 42 is fastened to the first eyeplate connector 111 through the connection hole.
[0042] Preferably, the first eye plate connector 111 is welded to the intermediate column 11.
[0043] Furthermore, such as Figure 2 As shown, the end of the tension arm 3 away from the middle column 11 is provided with a first eye plate connector 31, and the end of the diagonal tie rod 4 near the tension arm 3 is connected to the first eye plate connector 31 through a connecting pin 42.
[0044] Preferably, the first eyeplate connector 31 is welded to the tension arm 3. The first eyeplate connector 31 has a through connecting hole, and the connecting pin 42 is fastened to the first eyeplate connector 31 through the connecting hole.
[0045] Furthermore, the tie rod 4 is a metal steel tie rod 4. The tie rod 4 can be a single rod or composed of multiple small tie rods 4.
[0046] Furthermore, such as Figure 1 As shown, a buoyancy component 32 is provided at the end of the tension arm 3 away from the intermediate support component 1. The buoyancy component 32 is used to provide buoyancy and includes at least three corner tubes 321, which are respectively located at the ends of the three tension arms 3 away from the intermediate support component 1. The corner tubes 321 are closed cavity structures that can provide buoyancy to the overall floating wind power generation platform.
[0047] Furthermore, such as Figure 1 and Figure 3 As shown, a tension leg 322 is suspended from the end of the tension arm 3 furthest from the intermediate support assembly 1. The tension leg 322 is suspended below the angle tube 321; the tension leg 322 is used for mooring the platform. The tension leg 322 uses tension to pull the end of the tension arm 3 furthest from the intermediate column 11. The tension leg 322 is connected to the anchor foundation to prevent the floating wind power platform from moving excessively under the action of wind, waves and currents. In addition, the tension leg 322 pulls the tension arm 3 through the angle tube 321, which can balance part of the tension force on the tension arm 3 from the diagonal tie rod 4, reducing the stress on the tension arm 3.
[0048] Furthermore, the tie rod 4 has a detachable tension adjustment device 43, which is used to adjust the length of the tie rod 4 to adjust its tension. Due to design considerations, it may be necessary to apply pre-tension to the tie rod 4 to improve overall structural performance. Therefore, the tie rod 4 needs to be tensioned according to design requirements during the platform assembly process using the tension adjustment device 43. After tension adjustment, the temporary tension adjustment device can be removed.
[0049] A tension regulator provides a certain pretension to the diagonal brace 4 system, ensuring that its axial force is always under tension. The pretension of the diagonal brace will generate additional axial pressure on the horizontal tension arm 3, but it can balance part of the vertical bending moment of the horizontal tension arm 3.
[0050] It should be noted that the specific functions of the tension adjustment device 43 in this embodiment are those that can be obtained by those skilled in the art based on the prior art, and the structure and working principle of the tension adjustment device 43 will not be described in detail here.
[0051] Furthermore, such as Figure 3 and Figure 5 As shown, the intermediate support assembly 1, tension arm 3, and corner cylinder 321 are all cylindrical structures. In some embodiments, the cross-sections of the intermediate support assembly 1, tension arm 3, and corner cylinder 321 are all circular, square, or rectangular, forming an overall cylindrical or square columnar structure.
[0052] In summary, this invention provides a floating wind power generation platform with a tension structure of inclined tie rods 4. At least three tension arms 3 are uniformly welded to the periphery of the intermediate support component 1, and each tension arm 3 is connected to the intermediate support component 1 by an inclined tie rod 4 to stabilize the intermediate support component 1. The inclined tie rod 4 serves as a diagonal bracing structure, replacing the rod structure of traditional wind power generation platforms. The inclined tie rod 4 is a slender rod, and its bending moment at both ends is released through appropriate design, bearing only tensile force. Therefore, it reduces the amount of steel used, reduces wave force, reduces overall weight, and lowers the construction and assembly costs of the wind power generation platform.
[0053] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A floating wind power generation platform with a tie rod tension structure, characterized in that, include: Intermediate support components; A generator fan, which is rotatably connected to the intermediate support assembly; At least three tension arms, which are welded to the intermediate support assembly; At least three diagonal tie rods are provided, each diagonal tie rod being correspondingly arranged to the tension arm. One end of each diagonal tie rod is connected to the intermediate support assembly, and the other end of each diagonal tie rod is connected to the tension arm. The diagonal tie rod, together with the intermediate support assembly and the tension arm, forms a triangular truss structure. At least one of the intermediate support assembly and the tension arm is provided with a sealed cavity, which is used to provide buoyancy.
2. The floating wind power generation platform with a tie rod tension structure according to claim 1, characterized in that, The intermediate support component includes: A central column, the tension arms are fixed on the central column, and several tension arms are evenly arranged around the circumference of the central column. The tower is mounted on the central column, and the wind turbine is mounted on the end of the tower away from the central column.
3. A floating wind power generation platform with a tie rod tension structure according to claim 2, characterized in that, Both ends of the diagonal tie rod are provided with end connecting eye plates, and both ends of the diagonal tie rod are respectively connected to the intermediate column and the tension arm through the end connecting eye plates.
4. A floating wind power generation platform with a tie rod tension structure according to claim 3, characterized in that, At least three first eyeplate connectors are evenly provided at the end of the intermediate column away from the tension arm, and the end connecting eyeplate of the diagonal tie rod near the intermediate column is connected to the first eyeplate connectors by a connecting pin.
5. A floating wind power generation platform with a tie rod tension structure according to claim 4, characterized in that, The tension arm is provided with the first eye plate connector at the end away from the intermediate column, and the end eye plate of the diagonal tie rod near the tension arm is connected to the first eye plate connector by a connecting pin.
6. A floating wind power generation platform with a tie rod tension structure according to claim 1, characterized in that, The tie rod is a metal steel tie rod.
7. A floating wind power generation platform with a tie rod tension structure according to claim 1, characterized in that, A buoyancy component is provided at the end of the tension arm away from the intermediate support assembly. The buoyancy component is used to provide buoyancy. The buoyancy component includes at least three corner tubes, which are respectively located at the ends of the three tension arms away from the intermediate support assembly.
8. A floating wind power generation platform with a tie rod tension structure according to claim 7, characterized in that, A tension leg is suspended at the end of the tension arm away from the intermediate support assembly. The tension leg is suspended below the angle tube and is used for mooring.
9. A floating wind power generation platform with a tie rod tension structure according to claim 1, characterized in that, The tie rod has a detachable tension adjustment device, which is used to adjust the length of the tie rod to adjust the tension of the tie rod.
10. A floating wind power generation platform with a tie rod tension structure according to claim 7, characterized in that, The intermediate support assembly, the tension arm, and the angle tube are all cylindrical structures.