Offshore wind power floating body

Abstract

The utility model belongs to the technical field of offshore wind power, and particularly discloses an offshore wind power floating body which comprises a floating assembly, a base and a plurality of telescopic supporting legs. A wind power generation platform is arranged on the floating assembly; the upper surface of the base is fixedly connected with the floating assembly; the multiple telescopic supporting legs are rotationally connected with the lower surface of the base, and each telescopic supporting leg is connected with the seabed. According to the wind power generation platform, the lower portion of the base is rotationally connected with the telescopic supporting legs, the telescopic supporting legs can effectively support the overall structure formed by the floating assembly and the base, the telescopic supporting legs and the floating assembly jointly bear the weight of the wind power generation platform, and due to the fact that the gravity center of the overall structure is lowered, the weight of the wind power generation platform is lowered. The stability of the offshore wind power floating body is higher, then the stability of the wind power generation platform is greatly improved, swing and vibration of the wind power generation platform caused by sea waves and wind power are reduced, and the power generation efficiency and safety are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of offshore wind power technology, specifically to an offshore wind power floating body. Background Technology

[0002] Offshore wind power is a form of renewable energy that utilizes offshore wind resources to generate electricity. Compared with onshore wind power, offshore wind power has the advantages of not occupying land resources, higher wind speeds, and more abundant wind energy resources, thus having higher power generation efficiency and higher annual utilization hours.

[0003] Unlike traditional fixed offshore wind turbine structures, floating offshore wind turbines utilize floating bodies to replace fixed foundations with floating foundations, allowing the turbines to "float" on the water's surface. However, extreme weather conditions at sea, such as strong winds and high waves, often cause these floating bodies to sway, tilt, or even capsize, severely impacting the normal operation and lifespan of the wind turbines. To address this issue, existing offshore wind turbine floating bodies typically improve stability by increasing their mass and altering their shape. However, these methods often have drawbacks. For example, increasing the mass of the floating body raises costs and may impact the marine environment; changing the shape can increase design complexity and manufacturing costs, while also affecting the overall aesthetics and efficiency of the wind farm. Summary of the Invention

[0004] The purpose of this utility model is to provide a floating body for offshore wind power, so as to solve the technical problems of existing offshore wind power floating bodies that make it difficult to simultaneously achieve stability and cost.

[0005] This utility model provides a floating body for offshore wind power, including a floating component, a base and multiple telescopic support legs; a wind power generation platform is provided on the floating component; the upper surface of the base is fixedly connected to the floating component; the multiple telescopic support legs are rotatably connected to the lower surface of the base, and each telescopic support leg is in contact with the seabed.

[0006] Preferably, it also includes a plurality of universal joints; each universal joint is connected to the bottom of one of the telescopic support legs.

[0007] Preferably, it also includes a counterweight assembly; the counterweight assembly is located at the geometric center of the wind power generation platform and passes through the base.

[0008] Preferably, the counterweight assembly includes a lifting device and a counterweight block; the lifting device is located at the geometric center of the wind power generation platform, and the rope of the lifting device passes through one end of the base and is connected to the counterweight block.

[0009] Preferably, it also includes an environmental monitoring sensor; the environmental monitoring sensor is disposed on the floating component.

[0010] Preferably, the environmental monitoring sensors include wave sensors and / or wind speed sensors.

[0011] Preferably, it further includes a status monitoring sensor; the status monitoring sensor is disposed on the floating component and is used to acquire the motion status of the floating component.

[0012] Preferably, the condition monitoring sensor includes a tilt sensor and / or an acceleration sensor.

[0013] Preferably, the floating assembly includes a support frame and a plurality of pontoons; the plurality of pontoons are disposed around the periphery of the support frame and connected to the support frame.

[0014] Preferably, the base is circular or a regular polygon.

[0015] Compared with the prior art, the floating body for offshore wind power of this invention has the following advantages:

[0016] This invention features a base beneath the floating assembly, making the floating assembly and base an integral structure. Furthermore, multiple telescopic support legs are rotatably connected beneath the base. These legs effectively support the overall structure formed by the floating assembly and base, jointly bearing the weight of the wind power platform. Due to the lowered center of gravity of the overall structure, the stability of this offshore wind power floating body is significantly improved, thereby greatly enhancing the stability of the wind power platform, reducing swaying and vibration caused by waves and wind, and significantly improving power generation efficiency and safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the offshore wind power floating body of this utility model.

[0018] In the diagram: 1 is the pontoon, 2 is the base, 3 is the telescopic support leg, 4 is the universal joint, 5 is the wind power generation platform, 6 is the support frame, and 7 is the counterweight. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] This utility model embodiment provides a floating body for offshore wind power, such as Figure 1 As shown, it includes a floating assembly, a base 2, and multiple telescopic support legs 3; a wind power generation platform 5 is mounted on the floating assembly, and the floating assembly is used to support the wind power generation platform 5; the upper surface of the base 2 is fixedly connected to the floating assembly; the multiple telescopic support legs 3 are rotatably connected to the lower surface of the base 2, and each telescopic support leg 3 is connected to the seabed.

[0024] The aforementioned floating assembly includes a support frame 6 and multiple pontoons 1; the multiple pontoons 1 are disposed around the support frame 6 and connected to the support frame 6. The pontoons 1 of this invention are cylindrical pontoons made of high-strength material. The high-strength material and cylindrical shape enhance the bending strength and stability of the pontoons 1 under wave impact. Specifically, the high-strength material can be high-density polyethylene (HDPE), which has good corrosion resistance and can adapt to the marine environment. The support frame 6 of this invention is formed by multiple support beams intersecting in a mesh pattern, which increases the stability of the entire offshore wind turbine floating body while reducing the overall weight.

[0025] The base 2 is fixedly connected to the floating component by using high-strength connectors. For example, high-strength bolts can be used to connect the base 2 to the support frame 6 in the floating component.

[0026] The base 2 of this utility model is circular or regular polygonal in shape, and the symmetrical structure can further improve stability.

[0027] This invention features a base 2 positioned below the floating assembly, thus integrating the floating assembly and base 2 into a single structure. Furthermore, multiple telescopic support legs 3 are rotatably connected below the base 2. These legs effectively support the overall structure formed by the floating assembly and base 2, working together with the floating assembly and existing chain anchors to support the weight of the wind power platform 5. Due to the lowered center of gravity of the overall structure, the stability of this offshore wind power floating body is significantly improved, greatly enhancing the stability of the wind power platform 5 and reducing its swaying and vibration caused by waves and wind, thereby significantly improving power generation efficiency and safety.

[0028] To make the telescopic support leg 3 more adaptable to different seabed topography, the offshore wind power floating body of this utility model also includes multiple rotatable universal joints 4; each universal joint 4 is connected to the bottom of a telescopic support leg 3.

[0029] The telescopic support leg 3 of this invention can be adjusted adaptively based on the overall weight of the base 2 and the floating assembly and the topography of the seabed. It can also be automatically controlled and adjusted according to the seabed topography and the position of the telescopic support leg 3 under the action of waves.

[0030] To further improve the stability of the offshore wind power floating body of this invention, a counterweight assembly is also provided. The counterweight assembly is located at the geometric center of the wind power generation platform 5 and extends into the sea through the base 2. The counterweight assembly includes a lifting device and a counterweight block 7. The lifting device is located at the geometric center of the wind power generation platform 5, and its rope passes through one end of the base 2 and is connected to the counterweight block 7. This invention allows for adjustment of the position and weight of the counterweight block 7 through manual or automatic adjustment, thereby adjusting the overall center of gravity and improving the stability of the offshore wind power floating body.

[0031] Furthermore, to facilitate the aforementioned manual or automatic adjustment, this embodiment of the invention also includes an environmental monitoring sensor. The environmental monitoring sensor is mounted on the floating assembly to acquire environmental information, allowing technicians to determine the position and weight of the counterweight 7 based on this information and their experience, or allowing a computer to determine the position and weight of the counterweight 7 based on the environmental information. The aforementioned environmental monitoring sensor includes a wave sensor and / or a wind speed sensor. The wave sensor reflects the marine environmental state by measuring various wave parameters (such as wave height, wave period, and wave direction). The wave sensor used in this invention employs a measurement principle that includes pressure-based, acceleration-based, or laser rangefinder-based methods. The aforementioned wind speed sensor can be a mechanical wind speed sensor or an ultrasonic wind speed sensor.

[0032] To more accurately determine the position and weight of the counterweight 7 used, the offshore wind power floating body of this embodiment also includes a status monitoring sensor; the status monitoring sensor is disposed on the floating component and is used to acquire the motion status of the floating component. The status monitoring sensor includes a tilt sensor and / or an acceleration sensor. The tilt sensor is used to acquire the tilt angle of the entire floating component; the acceleration sensor is used to acquire the acceleration of the entire floating component.

[0033] For example, when the position of the counterweight 7 is automatically adjusted, this embodiment of the invention processes the received data from the environmental monitoring sensor and the status monitoring sensor through the central processing unit, and automatically adjusts the position of the counterweight 7 according to a preset control algorithm to maintain the stability of the floating body. Further, when the tilt angle of the floating body exceeds a preset threshold and / or the acceleration exceeds a preset threshold, the floating body is deemed unstable, and the central processing unit activates the early warning module to issue a warning.

[0034] This invention significantly improves the stability of the floating body under various sea conditions by optimizing the structure of the floating components, enhancing the stability of the original chain anchoring system, and introducing an intelligent adjustment system, thus ensuring the continuous and safe operation of wind power equipment. It has the following beneficial effects:

[0035] 1. Save raw materials and reduce costs: Based on the principles of fluid mechanics and structural mechanics, this utility model reduces the amount of materials required for the floating body by optimizing the design of the floating component structure, thereby reducing manufacturing and maintenance costs. This is of positive significance for the sustainable development of the offshore wind power industry.

[0036] 2. Reduce environmental pollution: The materials and production processes used in this invention meet environmental protection requirements, which helps to reduce the discharge of waste gas, wastewater, and solid waste and reduce pollution to the marine environment.

[0037] This utility model proposes a technical solution different from existing technologies: Based on existing technologies, it presents a novel structure that significantly improves the stability of offshore wind turbine floating bodies, providing a new approach to the development of offshore wind turbine floating body technology. This utility model represents a new technological development trend: Following the development trend of the offshore wind power industry, it is expected to become the mainstream development direction for the stability technology of offshore wind turbine floating bodies in the future. This utility model offers significant comprehensive benefits: Although it may have some negative effects, such as increasing the initial investment cost of equipment, overall, it has significant positive technical effects in improving stability, increasing operating efficiency, saving costs, and reducing environmental pollution, bringing significant comprehensive benefits to my country's offshore wind power industry.

[0038] The above description is merely a few embodiments of this utility model and is not intended to limit this utility model in any way. Although this utility model has been disclosed above with preferred embodiments, it is not intended to limit this utility model. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this utility model using the disclosed technical content are equivalent to equivalent implementation cases and all fall within the scope of the technical solution.

Claims

1. A floating body for offshore wind power, characterized in that, Includes a floating assembly, a base, and multiple telescopic support legs; A wind power generation platform is installed on the floating component; The upper surface of the base is fixedly connected to the floating component; The plurality of telescopic support legs are rotatably connected to the lower surface of the base, and each of the telescopic support legs is connected to the seabed.

2. The offshore wind power floating body according to claim 1, characterized in that, It also includes multiple universal joints; Each universal joint is connected to the bottom of one of the telescopic support legs.

3. The offshore wind power floating body according to claim 1 or 2, characterized in that, It also includes counterweight components; The counterweight assembly is located at the geometric center of the wind power generation platform and passes through the base.

4. The offshore wind power floating body according to claim 3, characterized in that, The counterweight assembly includes lifting equipment and counterweight blocks; The lifting equipment is located at the geometric center of the wind power generation platform, and the rope of the lifting equipment passes through one end of the base and is connected to the counterweight.

5. The offshore wind power floating body according to claim 1, characterized in that, It also includes environmental monitoring sensors; The environmental monitoring sensor is mounted on the floating assembly.

6. The offshore wind power floating body according to claim 5, characterized in that, The environmental monitoring sensors include wave sensors and / or wind speed sensors.

7. The offshore wind power floating body according to claim 1, characterized in that, It also includes condition monitoring sensors; The status monitoring sensor is installed on the floating component to obtain the motion status of the floating component.

8. The offshore wind power floating body according to claim 7, characterized in that, The condition monitoring sensors include tilt sensors and / or acceleration sensors.

9. The offshore wind power floating body according to claim 1, characterized in that, The floating assembly includes a support frame and multiple pontoons; The plurality of pontoons are disposed around the periphery of the support frame and are connected to the support frame.

10. The offshore wind power floating body according to claim 1, characterized in that, The base is circular or a regular polygon.

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