A tension cable type offshore floating wind power generation platform and its installation structure

Abstract

This application relates to the technical field of offshore wind power generation equipment, specifically a tension cable-type offshore floating wind power platform and its installation structure. The tension cable-type offshore floating wind power platform uses several tension legs for mooring. The tension legs are mounted on piles on the seabed, and each pile has a connecting part that connects to the lower end of the tension leg. The horizontal height of each connecting part varies due to construction and installation errors. The platform body includes a platform body with several hooks on its edge. These hooks correspond one-to-one with the connecting parts and are used to connect to the upper end of the tension legs. Each tension leg has the same length, and each hook has a different horizontal height on the platform body, matching the horizontal height of the corresponding connecting part. This ensures that after the upper end of the tension leg is connected to the corresponding hook, the entire platform body is in a horizontal state. The advantage is that it solves the problems of complexity and high cost associated with existing tension leg length adjustment mechanisms or active platform attitude adjustment systems.

Description

Technical Field

[0001] This application relates to the field of offshore wind power generation equipment technology, and in particular to a tension cable type offshore floating wind power generation platform and its installation structure. Background Technology

[0002] With the accelerated global energy structure transformation and the advancement of "dual carbon" goals, offshore wind power, with its abundant and stable wind energy resources and non-land-occupying advantages, has become a strategic focus for renewable energy development. In deep-sea areas, the economic and technical feasibility of fixed foundations declines sharply, making floating wind power platforms an inevitable choice for developing wind energy resources in these regions. Among floating platform configurations, tension leg platforms (TLPs) offer excellent stability due to their reliance on pre-tensioned vertical mooring cables (tension legs) to constrain the platform's heave, roll, and pitch movements. They are particularly suitable for wind power generation scenarios with stringent requirements for turbine nacelle movement and are considered a highly promising technological approach.

[0003] However, successfully applying tension leg platform technology to offshore wind power faces a series of unique engineering challenges and cost pressures. One of the core difficulties lies in the precise installation and leveling of the platform, requiring that the lengths of all tension legs, especially those between groups, be consistent after installation, with minimal error. The working principle of the tension leg platform requires all tension legs to maintain a preset tension after installation to ensure the platform maintains a horizontal attitude under complex sea conditions, providing a stable foundation for wind turbine operation. However, the actual seabed geological conditions are complex and variable, and vertical installation errors are inevitable in pile foundation construction (i.e., the top connections of each pile are not strictly on the same horizontal plane). This seemingly minor construction error will be significantly amplified under the strict geometric and mechanical requirements of the tension leg system. If there is a height difference between the anchor points of each tension leg, while the upper connection of the platform is on the same plane and the tension legs are of the same length, the platform will inevitably tilt after installation, causing some tension legs to be overloaded and others to slack, seriously threatening structural safety and the normal operation of the wind turbine.

[0004] To address this challenge, existing technologies typically rely on complex tension leg length adjustment mechanisms or active platform attitude adjustment systems. Common methods include:

[0005] 1. Underwater Adjustable Connector: A complex hydraulic or mechanical adjustable mechanism is installed at the connection between the tension leg and the subsea pile or platform to perform precise length adjustments underwater. This not only significantly increases the manufacturing cost and failure risk of a single-point connection, but also requires expensive operating costs for delicate operation, significantly extending installation time and increasing operational difficulty.

[0006] 2. Platform-side hydraulic leveling system: This system integrates hydraulic cylinders or winches into the platform body, adjusting the tension of the tension legs in real time to compensate for installation errors and maintain platform level. This approach increases the platform's weight, complexity, construction costs, and maintenance requirements, while also consuming additional energy and reducing the overall reliability of the system, contradicting the pursuit of economic efficiency and low operation and maintenance costs in offshore wind power.

[0007] 3. High-precision construction and strict tolerance control: The aim is to ensure that the top surfaces of all subsea piles are at the same horizontal level through extremely stringent construction specifications and expensive equipment. This is extremely difficult and costly to implement in deep water and complex seabed conditions, and errors cannot be completely eliminated, posing significant challenges to both economic viability and feasibility.

[0008] 4. Platform-side Special Adjustable Connection Device: For example, the design and optimization scheme of the tension tendon connector configuration for offshore tension leg platforms disclosed in the Journal of Mechanical Engineering, Vol. 55, No. 18, reveals a tension tendon connector configuration (i.e., a platform-side special adjustable connection device). The top connector of the tension tendon consists of a length adjustment section, a flexible body, a support ring, an installation tool, and a split nut. The bottom connector of the tension tendon consists of a tension tendon transition section, a male connector, a flexible body, and a receiver, enabling rapid connection between the tension tendon and the subsea foundation. However, this connection structure is also complex, requiring high manufacturing and operating costs, which does not meet the economic requirements of wind power platforms.

[0009] In summary, overcoming the impact of errors generated during subsea pile foundation construction on the horizontal attitude of the tension leg platform, and eliminating reliance on complex and expensive active adjustment or underwater precision adjustment technologies, while designing a platform connection system that is relatively simple in structure, easy and efficient to install, and cost-controllable, is a key bottleneck problem in promoting the large-scale commercial application of tension leg floating wind power technology. The technical solution proposed in this application is an innovative approach addressing this core pain point. Utility Model Content

[0010] The purpose of this application is to propose a tension cable type offshore floating wind power generation platform and its installation structure, which overcomes the influence of errors generated during the construction of the seabed pile foundation on the horizontal attitude of the tension leg platform, and solves the problem that the existing tension leg length adjustment mechanism or platform attitude active adjustment system is relatively complex and expensive.

[0011] To achieve the above objectives, this application adopts the following technical solution:

[0012] On one hand, this application provides a tension cable type offshore floating wind power generation platform, which is set on the sea surface by tension legs. The tension legs are set on pile foundations on the seabed. There are multiple pile foundations, and each pile foundation is provided with several connecting parts. The connecting parts are connected to the lower end of the tension legs. The horizontal height of each connecting part is different due to construction and building errors. The platform body includes a platform body with several hooks on its edge. Each hook corresponds to one of the connecting parts and is used to connect to the upper end of the tension legs. Each tension leg is the same length, and each hook is at a different horizontal height on the platform body, which matches the horizontal height of the corresponding connecting part, so that after the upper end of the tension leg is connected to the corresponding hook, the platform body is in a horizontal state.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: the hook includes a hook plate, the hook plate includes a vertically arranged connecting body and a support body arranged on the connecting body that protrudes away from the length direction of the connecting body, and the support body is provided with a downwardly recessed hook groove; the number of hook plates is set to two, the length directions of the two hook plates are parallel to each other, and the two hook plates are arranged facing each other in the thickness direction.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme: the hook is connected to the platform body by welding.

[0015] Based on the above scheme and as a preferred embodiment of the above scheme: the two hook plates are connected together by a first reinforcing rib, the upper end of the connecting body is welded to the first reinforcing rib, and the length direction of the first reinforcing rib is perpendicular to the length direction of the connecting body.

[0016] Based on the above scheme and as a preferred embodiment of the above scheme: the platform body includes: a column for installing a wind turbine, the column being vertically arranged; a tension arm, the number of tension arms being arranged in multiples, the multiple tension arms being evenly distributed around the column, one end of the tension arm being connected to the column, and the other end extending away from the column; the hook being arranged at the end of the tension arm away from the column.

[0017] Based on the above scheme and as a preferred embodiment of the above scheme: the end of the tension arm away from the column is provided with an angle tube for increasing buoyancy, and the hook is provided on the angle tube.

[0018] Based on the above scheme and as a preferred embodiment of the above scheme: a diagonal brace is provided between the tension arm and the column, one end of the diagonal brace is connected to the end of the tension arm away from the column, and the other end is connected to the end of the column located above the tension arm.

[0019] On the other hand, based on the same technical concept of this application, this application also provides a tension cable type offshore floating wind power generation platform installation structure, including the tension cable type offshore floating wind power generation platform described above; it also includes the pile foundation set on the seabed, the connecting part is provided on the pile foundation, the connecting part is connected to the lower end of the tension leg; the hook and the connecting part are located directly above the connecting part in a one-to-one correspondence, and the upper end of the tension leg between the hook and the connecting part in the vertical direction is connected to the hook through a connector.

[0020] Based on the above scheme and as a preferred embodiment of the above scheme: the tension leg includes a tension cable, the lower end of which is connected to the connecting part; the connector is disposed at the upper end of the tension cable, and the connector is provided with two parallel and facing limiting plates and a hanging shaft that passes vertically through the two limiting plates at the same time; when the connector is connected to the hook, the two limiting plates are simultaneously located between the two hook plates, and the two ends of the hanging shaft are horizontally inserted into the hook groove.

[0021] Based on the above solution and as a preferred embodiment: the connector includes a first connecting buckle and a second connecting buckle; the first connecting buckle is disposed at the upper end of the tension cable, and has two connecting ears that protrude away from the tension cable along the length of the tension cable, with first connecting holes facing each other on the two connecting ears; the second connecting buckle is disposed on the side of the first connecting buckle away from the tension cable, and includes two limiting plates and a hanging shaft, with a connecting plate disposed between the two limiting plates, the connecting plate being fixedly connected to both limiting plates, and a second connecting hole disposed on the connecting plate, the axis of the second connecting hole being perpendicular to the axis of the hanging shaft, the connecting plate extending between the two connecting ears and aligning the second connecting hole with the first connecting hole; the first connecting buckle is provided with a connecting shaft that passes through both first connecting holes and the first connecting hole to hinge the first connecting buckle and the second connecting buckle.

[0022] To address the complexity and high cost of existing tension leg length adjustment mechanisms or platform attitude active adjustment systems, this application offers the following advantages:

[0023] The tension cable-type offshore floating wind power platform of this application features a different horizontal height for each hook on the platform body. The difference in the horizontal height of each hook is determined based on the difference in the horizontal height of the corresponding connection part. This ensures that during installation, after the upper end of the tension leg is connected to the corresponding hook, the entire platform body is in a level state within an acceptable error range. This simple and convenient method achieves precise installation and leveling of the tension cable-type offshore floating wind power platform of this application.

[0024] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. These will be further described in detail below with reference to figures. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the installation structure of the tension cable type offshore floating wind power generation platform of this application. Figure 1 ;

[0027] Figure 2 This is an exploded view of the assembly of the connector and hook parts in this application;

[0028] Figure 3 This is a schematic diagram of the installation structure of the tension cable type offshore floating wind power generation platform of this application. Figure 2 ;

[0029] Figure 4 This is a schematic diagram of the installation structure of the tension cable type offshore floating wind power generation platform of this application. Figure 3 ;

[0030] Figure 5 This is a schematic diagram of the connection between the tension arm and the hook in this application;

[0031] Figure 6 This is a schematic diagram of the wind turbine setup for the power generation in this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Platform body; 101. Column; 102. Tension arm; 103. Diagonal brace; 104. Angle tube;

[0034] 200. Hook; 201. Hook plate; 202. Connector; 203. Support; 204. Hook groove; 205. First reinforcing rib; 206. Second reinforcing rib;

[0035] 300. Tension leg; 301. Tension cable; 302. Connector; 303. Second connecting buckle; 304. Limiting plate; 305. Hanging shaft; 306. Connecting plate; 307. Second connecting hole; 308. Connecting shaft; 309. First connecting buckle; 310. Connecting ear; 311. First connecting hole;

[0036] 400. Pile foundation; 401. Connection part; 402. Suction anchor;

[0037] 500. Wind turbine tower. Detailed Implementation

[0038] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0039] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0040] See Figure 1-6 This application discloses a tension cable type offshore floating wind power generation platform and its installation structure. On the one hand, the tension cable type offshore floating wind power generation platform of this application has a simple structure and can be applied to the tension cable type offshore floating wind power generation platform installation structure of this application. On the other hand, the tension cable type offshore floating wind power generation platform installation structure of this application can overcome the influence of the construction error of the seabed pile foundation 400 on the horizontal attitude of the wind power generation platform of the tension leg 300 structure through the tension cable type offshore floating wind power generation platform of this application.

[0041] In the embodiments of this disclosure, such as Figure 1 , Figure 3 and Figure 4The tension cable type offshore floating wind power generation platform installation structure includes the tension cable type offshore floating wind power generation platform.

[0042] The tension cable type offshore floating wind power platform is set on the sea surface using tension legs 300 (i.e., moored using several tension legs 300). The tension legs 300 are set on piles 400 on the seabed. To effectively fix the offshore wind power platform, multiple piles are set, generally arranged evenly around the perimeter. Several connecting parts 401 are set on the piles 400 (i.e., at least one is set). The connecting parts 401 connect to the lower end of the tension legs 300. The horizontal height of each connecting part 401 is different due to construction and installation errors, such as the height difference between different piles 400 during the installation of the seabed piles 400, or the height difference between different connecting parts on the same pile 400 during installation. Other aspects mainly include: construction errors of various structural connecting components, and measurement errors in the early stages of the project. A tension cable-type offshore floating wind power platform includes a platform body 100 for installing wind turbines. Several hooks 200, corresponding one-to-one with connecting parts 401, are provided on the outer periphery of the platform body 100. The hooks 200 connect the upper ends of tension legs 300. In actual production applications, differences in the length of the tension legs 300 can cause differences in the tension force between the connecting parts 401 and the hooks 200, creating instability factors for the wind power platform. Therefore, each tension leg 300 is generally designed to have the same length. The connecting parts 401, which connect the lower ends of the tension legs 300, need to be installed on seabed pile foundations 400. However, the actual seabed geological conditions are complex and variable, and the construction of the pile foundations 400 inevitably involves vertical installation errors (i.e., the top connecting parts 401 of each pile foundation 400 are not strictly on the same horizontal plane). This results in the horizontal height of each connecting part 401 being different due to seabed pile foundation construction errors. Therefore, existing technologies contain numerous complex tension leg 300 length adjustment mechanisms designed to eliminate differences in the horizontal height of the connecting parts 401. The use of these length adjustment mechanisms complicates the installation and layout of offshore wind power platforms, increases costs, and makes them unsuitable for the economic needs of offshore wind power platforms. The core innovation of this tension cable-type offshore floating wind power platform lies in the fact that each hook 200 has a different horizontal height on the platform body 100. This difference in horizontal height is determined based on the corresponding differences in the horizontal height of the connecting parts 401, ensuring that the horizontal height of each hook 200 on the platform body 100 matches the horizontal height of the corresponding connecting part 401. In other words, the final positioning of the hook 200 is determined after considering the aforementioned errors, so that after the upper end of the tension leg 300 connects to the corresponding hook 200, the entire platform body 100 is in a horizontal state within an acceptable error range.

[0043] That is, the tension cable type offshore floating wind power generation platform of this application has the characteristic that each hook 200 has a different horizontal height on the platform body 100. The difference in the horizontal height of each hook 200 on the platform body 100 is determined based on the difference in the horizontal height of the corresponding connecting part 401. This ensures that, during installation, after the upper end of the tension leg 300 is connected to the corresponding hook 200, the platform body 100 is in a horizontal state, thus achieving precise installation and leveling of the tension cable type offshore floating wind power generation platform of this application in a simple and convenient manner.

[0044] Based on this, the installation structure of the tension cable type offshore floating wind power generation platform also includes a pile foundation 400 set on the seabed. Several connecting parts 401 are set on the pile foundation 400. The connecting parts 401 are connected to the lower end of the tension leg 300. The connection between the connecting parts 401 and the lower end of the tension leg 300 is existing technology. It is only necessary to make the connection between the tension leg 300 and the connecting parts 401 movable and swingable, and no further details are needed.

[0045] During arrangement, based on the correspondence between the vertical installation error of the connecting part 401 and the horizontal height difference (height difference in the vertical direction) of the hook 200 on the platform body 100, the hook 200 and the connecting part 401 are positioned directly above the connecting part 401 in a one-to-one correspondence. The upper end of the tension leg 300 between the hook 200 and the connecting part 401 that are opposite each other in the vertical direction is connected to the hook 200 through the connector 302.

[0046] The tension cable-type offshore floating wind power platform installation structure of this application, through simple construction and installation procedures, allows for the pre-measurement of the horizontal height error of the connection part 401 on the pile foundation 400 using existing technologies. After measuring the installation error of the connection part 401 on the pre-installed pile foundation 400, calculations are performed, and the final installation position of the hook 200 on the platform body 100 is adjusted within a small range to absorb the error in the length direction of the tension leg 300 caused mainly by the installation error of the seabed pile foundation 400. This eliminates the need for multiple specially developed and customized special components and corresponding complex offshore installation procedures to adjust the length of the tension leg 300, which is required in traditional installation methods, thus reducing the installation difficulty and technical requirements. This process can also simultaneously absorb errors in the length direction of the tension leg 300 caused by other factors. Therefore, this tension cable-type offshore floating wind power platform and its installation structure achieve a relatively simple, convenient, efficient, and cost-controllable platform connection system, freeing it from dependence on complex and expensive active adjustment or underwater precision adjustment technologies, and making a positive contribution to promoting the large-scale commercial application of tension leg 300 type floating wind power technology.

[0047] In this embodiment of the disclosure, the platform body 100 includes a column 101 and a tension arm 102, wherein the column 101 is used to connect to the wind turbine tower 500 when installing the wind turbine. Figure 6 As shown, the column 101 is vertically installed, and the wind turbine tower 500 can be directly installed on the top of the column 101. Tension arms 102 can provide buoyancy support individually or in conjunction with other buoyancy structures. Multiple tension arms 102 are evenly distributed around the column 101, with one end connected to the column 101 and the other end extending away from the column 101. Hooks 200 are located at the outer end of the tension arms 102, i.e., the end away from the column 101. The number of piles 400 corresponds to the number of tension arms 102. Each pile 400 is located directly below the outer end of the tension arms 102. Multiple tension legs 300 can be connected between each pile 400 and each tension arm 102, but at least one... Figure 5 As shown, it is preferable to have two or more tension legs 400 between the same pile foundation 400 and tension arm 102 to prevent one of the tension legs 400 from malfunctioning and losing its restraint on the offshore wind power platform. Specifically, three tension arms 102 can be installed, all evenly distributed around the column 101 on the same horizontal plane. One end of each tension arm 102 can be welded and fixed to the lower end of the column 101, while the other end extends horizontally outward. Figure 5 As shown, the hook 200 can be welded and fixed to the end of the tension arm 102 away from the column 101. The welding position height of the hook 200 on the tension arm 102 can be set according to the horizontal position height of the connection part 401 that is vertically below after being deployed at sea (this height is obtained from previous measurements).

[0048] for example, Figure 3 As shown, the three connecting parts 401 arranged through three pile foundations 400 are A1, A2, and A3, while the three hooks 200 installed on the platform body 100 are B1, B2, and B3. When the platform body 100 is deployed at sea, the platform body 100 is directly above the pile foundations 400, hook B1 is directly above the vertical direction of connecting part A1, hook B2 is directly above the vertical direction of connecting part A2, and hook B3 is directly above the vertical direction of connecting part A3. Taking the horizontal position height of hook B1 as the reference distance, if hook B2 is 100mm higher than hook B1 and hook B3 is 50mm lower than hook B1, then correspondingly, hook B2 is 100mm higher than hook B1 and hook B3 is 50mm lower than hook B1. Ultimately, the height difference between hook B1 and connecting part A1, the height difference between hook B2 and connecting part A2, and the height difference between hook B3 and connecting part A3 are all the same, all satisfying the height difference of the tension leg 300's preset tension.

[0049] Furthermore, to increase the buoyancy of the platform body 100, a corner tube 104 for increasing buoyancy is provided at one end of the tension arm 102 away from the column 101, and a hook 200 is provided on the corner tube 104. The hook 200 can also be fixedly connected to the corner tube 104 by welding, and its horizontal height position is set in the same way as that of the hook 200 directly on the tension arm 102.

[0050] Furthermore, to ensure the structural stability of the platform body 100, a diagonal brace 103 is provided between the tension arm 102 and the column 101. One end of the diagonal brace 103 is connected to the end of the tension arm 102 away from the column 101, and the other end is connected to the end of the column 101 located above the tension arm 102. The tension arm 102, the column 101, and the diagonal brace 103 form a triangular connection structure.

[0051] In some implementations, the pile foundation 400 may be a suction anchor 402 or a pile anchor. For example... Figure 4 As shown, its pile foundation 400 is a suction anchor 402, wherein the connecting part 401 is provided on the corresponding suction anchor 402.

[0052] In this embodiment of the disclosure, the hook 200 includes a hook plate 201, such as... Figure 2 As shown, the hook plate 201 includes a vertically arranged connecting body 202 and a support body 203 that protrudes from the connecting body 202 in a direction away from the length of the connecting body 202. The support body 203 is provided with a downwardly recessed hook groove 204. The number of hook plates 201 is set to two, the length directions of the two hook plates 201 are parallel to each other, and the two hook plates 201 are arranged facing each other in the thickness direction.

[0053] Based on this, the tension leg 300 includes a tension cable 301, the lower end of which is connected to a connecting part 401; a connector 302 is provided at the upper end of the tension cable 301, and the connector 302 is provided with two parallel and facing limiting plates 304 and a hanging shaft 305 that passes vertically through the two limiting plates 304 at the same time; when the connector 302 is connected to the hook 200, the two limiting plates 304 are simultaneously located between the two hook plates 201, and the two ends of the hanging shaft 305 are horizontally inserted into the hook groove 204.

[0054] When connecting the tension cable 301 to the hook 200, the platform body 100 is first pressured by external force (such as the pressure of a heavy object) to sink the platform body 100 to a certain depth. Then, the upper end of the tension cable 301 is pulled upward so that the height of the hanging shaft 305 is higher than the support body 203. Then, the posture of the connector 302 is adjusted so that the two limiting plates 304 are simultaneously positioned between the two hook plates 201, and the two ends of the hanging shaft 305 are horizontally inserted into the hook groove 204. Then, the pressure applied to the platform body 100 is slowly released. The buoyancy of the platform, together with the pile foundation 400, forms tension on the tension cable 301. The tension cable 301 forms a tension leg 300 between the connection part 401 and the hook 200. The connector 302 and the hook 200 of this design structure are simple to connect and are stable under the action of buoyancy. It has low production and processing costs and a relatively simple installation and construction method, eliminating the complicated offshore adjustment process, reducing costs and improving efficiency.

[0055] Furthermore, the hook 200 is preferably connected to the platform body 100 by welding. Specifically, two hook plates 201 are connected to a first reinforcing rib 205, and the upper end of the connecting body 202 is welded to the first reinforcing rib 205. The length direction of the first reinforcing rib 205 is perpendicular to the length direction of the connecting body 202. When manufacturing a tension cable type offshore floating wind power platform, the hook 200 can be partially pre-fabricated, i.e., the two hook plates 201 are welded together to the first reinforcing rib 205 to form a small hook 200 unit. Then, after the height is determined, the hook 200 unit is welded to the platform body 100 according to the data.

[0056] Furthermore, in order to enhance the welding stability of the hook 200 on the platform body 100, second reinforcing ribs 206 are provided on both sides of the hook 200 to reinforce the welding connection between the hook 200 and the platform body 100.

[0057] In this embodiment of the disclosure, the connector 302 includes a first connecting buckle 309 and a second connecting buckle 303; as shown Figure 2As shown, the first connecting buckle 309 is disposed at the upper end of the tension cable 301. The first connecting buckle 309 has two connecting ears 310, which protrude along the length of the tension cable 301 in a direction away from the tension cable 301. The two connecting ears 310 are provided with first connecting holes 311 facing each other. The second connecting buckle 303 is disposed on the side of the first connecting buckle 309 away from the tension cable 301. The second connecting buckle 303 includes two limiting plates 304 and a hanging shaft 305. A connecting plate 305 is disposed between the two limiting plates 304. 6. The connecting plate 306 is fixedly connected to both limiting plates 304. The connecting plate 306 is provided with a second connecting hole 307. The axis of the second connecting hole 307 is perpendicular to the axis of the hanging shaft 305. The connecting plate 306 extends between the two connecting ears 310 and makes the second connecting hole 307 opposite to the first connecting hole 311. The first connecting buckle 309 is provided with a connecting shaft 308. The connecting shaft 308 passes through both first connecting holes 311 and the first connecting hole 311 to make the first connecting buckle 309 and the second connecting buckle 303 hinged.

[0058] When environmental loads cause the tension cable-type offshore floating wind power platform to sway, the hinged connection between the hanger 305 and the hook 200, along with the hinged connection between the first connecting buckle 309 and the second connecting buckle 303, allows it to sway adaptively under the constraint of the tension leg 300, following the sway of the platform body 100. This avoids the shearing force or torsional moment on the upper end of the tension leg 300 that would result from a direct rigid connection between the tension cable 301 and the platform body 100, thus preventing unnecessary damage to the tension leg 300, ensuring the stability of the tension cable-type offshore floating wind power platform, and ensuring the service life of the installation structure of the tension cable-type offshore floating wind power platform.

[0059] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tension cable type offshore floating wind power generation platform, used for being set on the sea surface by tension legs, the tension legs being set on pile foundations on the seabed, the number of pile foundations being multiple, each pile foundation being provided with several connecting parts, the connecting parts being connected to the lower end of the tension legs, the horizontal height of each connecting part being different due to construction and building errors, characterized in that... Includes a platform body, on which a plurality of hooks are provided, each hook corresponding to a connecting part and used to connect to the upper end of the tension leg; Each tension leg is the same length, and each hook is at a different horizontal height on the platform body, matching the horizontal height of the corresponding connecting part, so that after the upper end of the tension leg is connected to the corresponding hook, the platform body is in a horizontal state.

2. The tension cable type offshore floating wind power generation platform according to claim 1, characterized in that, The hook includes a hook plate, the hook plate includes a vertically arranged connecting body and a support body that protrudes from the connecting body in a direction away from the length of the connecting body, and the support body is provided with a downwardly recessed hook groove. The number of hook plates is set to two, the length directions of the two hook plates are parallel to each other, and the two hook plates are positioned opposite each other in the thickness direction.

3. The tension cable type offshore floating wind power generation platform according to claim 2, characterized in that, The hook is fixed to the platform body by welding.

4. The tension cable type offshore floating wind power generation platform according to claim 2, characterized in that, The two hook plates are connected together by a first reinforcing rib, and the upper end of the connector is welded to the first reinforcing rib. The length direction of the first reinforcing rib is perpendicular to the length direction of the connector.

5. The tension cable type offshore floating wind power generation platform according to claim 1, characterized in that, The platform itself includes: A column for mounting a wind turbine generator, wherein the column is vertically installed; Tension arms, wherein multiple tension arms are provided, and the multiple tension arms are evenly distributed around the column, one end of the tension arm is connected to the column, and the other end extends away from the column; The hook is located at the end of the tension arm away from the column.

6. The tension cable type offshore floating wind power generation platform according to claim 5, characterized in that, An angle tube is provided at one end of the tension arm away from the column, and the hook is provided on the angle tube.

7. The tension cable type offshore floating wind power generation platform according to claim 5 or 6, characterized in that, A diagonal brace is provided between the tension arm and the column. One end of the diagonal brace is connected to the end of the tension arm away from the column, and the other end is connected to the end of the column located above the tension arm.

8. A tension cable type installation structure for an offshore floating wind power generation platform, characterized in that, Including the tension cable type offshore floating wind power generation platform as described in claim 2; It also includes the pile foundation installed on the seabed, the connecting part being provided on the pile foundation, and the connecting part being connected to the lower end of the tension leg; The hooks and the connecting parts are located directly above the connecting parts in a one-to-one correspondence. The upper ends of the tension legs between the hooks and the connecting parts that are opposite each other in the vertical direction are connected to the hooks through connectors.

9. The tension cable type offshore floating wind power generation platform installation structure according to claim 8, characterized in that, The tension leg includes a tension cable, the lower end of which is connected to the connecting part; The connector is disposed at the upper end of the tension cable, and the connector is provided with two parallel and opposite limiting plates and a hanging shaft that passes through the two limiting plates perpendicularly at the same time. When the connector is connected to the hook, the two limiting plates are simultaneously located between the two hook plates, and the two ends of the hanging shaft are inserted horizontally into the hook groove.

10. The tension cable type offshore floating wind power generation platform installation structure according to claim 9, characterized in that, The connector includes a first connecting buckle and a second connecting buckle; The first connecting buckle is disposed at the upper end of the tension cable. The first connecting buckle is provided with two connecting ears. The connecting ears protrude along the length direction of the tension cable in a direction away from the tension cable. The two connecting ears are provided with first connecting holes facing each other. The second connecting buckle is disposed on the side of the first connecting buckle away from the tension cable. The second connecting buckle includes two limiting plates and the hanging shaft. A connecting plate is disposed between the two limiting plates. The connecting plate is fixedly connected to both limiting plates. A second connecting hole is disposed on the connecting plate. The axis of the second connecting hole is perpendicular to the axis of the hanging shaft. The connecting plate extends between the two connecting ears and makes the second connecting hole opposite to the first connecting hole. The first connecting buckle is provided with a connecting shaft, which passes through both the first connecting holes and the second connecting buckle to make the first connecting buckle and the second connecting buckle hinged.

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