Shallow water floating type wind power generation platform
By installing a motor-driven worm gear system and a screw system on the floating wind turbine platform to adjust the wind turbine angle and height, and setting a buoy and counterweight cylinder buffer structure on the anchor chain, the problems of low power generation efficiency and structural instability of the floating wind turbine are solved, and stability and safety are improved.
Patent Information
- Application Number
- CN202423093384.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The height and orientation of existing floating wind turbine blades are fixed and cannot be adjusted according to wind direction and severe sea conditions, resulting in low power generation efficiency and unstable structure, and the anchor chain connection is easily damaged.
A floating platform was designed, which uses a motor-driven worm gear system to adjust the wind turbine angle, and a motor-driven screw to adjust the wind turbine height. At the same time, buoys and counterweights were set on the anchor chain to buffer the impact load and reduce the stress on the anchor chain.
It enables flexible adjustment of the wind turbine angle and height, improves power generation efficiency, enhances structural stability, reduces the impact load of the anchor chain, and avoids damage to the connection.
Smart Images
Figure CN223408096U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of offshore wind power, and in particular relates to a shallow water floating wind power generation platform. Background Art
[0002] Floating wind turbines are envisioned by the industry as the primary technology for future deep-sea offshore wind power development and are being explored in numerous countries and regions. Compared to traditional wind turbines fixed to the offshore seabed, floating wind turbines offer the potential for deployment in deep waters, providing access to stable, high-quality wind power resources while maintaining stability in nearshore fisheries and other related industries.
[0003] After some current floating wind turbines are installed, the height and orientation of the wind turbine blades are fixed and cannot be adjusted accordingly according to wind direction and severe sea conditions, resulting in poor power generation efficiency and structural safety. At the same time, floating wind turbines installed in shallow water areas generally use a mooring combination of anchor foundations, buoyancy blocks and counterweight blocks, such as the existing patent 2022217518465. When sea conditions are severe, the anchor chain is subjected to a large impact load under the action of the counterweight block, and the connection with the counterweight block is prone to breakage, resulting in poor stability. Summary of the Invention
[0004] The purpose of this utility model is to address the above-mentioned problems in the existing technology and propose a shallow water floating wind power generation platform. The utility model can adjust the angle of the wind turbine according to different sea conditions to improve the power generation efficiency. At the same time, while ensuring the stability of the wind turbine platform, it reduces the impact load on the anchor chain and improves the safety of the mooring structure.
[0005] The above technical objectives of the present invention are achieved through the following technical solutions:
[0006] A shallow water floating wind power generation platform comprises a floating platform, wherein the floating platform comprises three mutually connected columns, one of the columns is provided with a fixed seat, and a wind turbine is rotatably provided on the fixed seat;
[0007] The column is connected with a mooring assembly, which includes an anchor chain. One end of the anchor chain is connected to the column, and the other end is connected to an anchor foundation. The anchor chain is provided with a plurality of buoy assemblies.
[0008] The utility model is further configured as follows: a first motor is provided on one side of the fixed seat, the output end of the first motor is fixedly connected to a worm, the outer side of the worm is threadedly connected to a worm wheel, the inner ring of the worm wheel is fixedly connected to a connecting shaft, and the top of the connecting shaft passes through the top of the fixed seat and is fixedly connected to the bottom of the fan.
[0009] The present invention is further configured such that a connecting column is fixedly provided at the bottom of the fixing seat, a supporting column is slidably connected to the outer side of the connecting column, and the lower end of the supporting column is fixedly provided on the column.
[0010] The present invention is further configured such that a second motor is provided on the inner wall of the support column, a screw rod is threadedly connected to the end of the connecting column located inside the support column, and the second motor is transmission-connected to the screw rod.
[0011] The utility model is further configured such that the outer side of the connecting column is fixedly connected to a limiting block, the inner wall of the supporting column is provided with a limiting groove, and the limiting block is slidably arranged in the limiting groove.
[0012] The present invention is further configured such that the buoy assembly is provided with two groups, each group of the buoy assembly includes three buoys, and a counterweight cylinder is connected to the anchor chain between the two groups of the buoy assemblies via a fixed rope.
[0013] The utility model is further configured such that a buffer cavity is provided in the counterweight cylinder, an upper through hole and a lower through hole connected to the buffer cavity are respectively provided on the upper and lower sides of the counterweight cylinder, a counterweight block is slidably provided in the buffer cavity, and a plurality of water flow holes are provided on the counterweight block.
[0014] The utility model is further configured such that a plurality of guide rods are vertically fixed in the buffer cavity, the plurality of guide rods are all inserted into the counterweight block, buffer springs are all sleeved on the guide rods located above and below the counterweight block, and limiting rings are all provided in the buffer cavity located above and below the counterweight block.
[0015] In summary, the present invention has the following beneficial effects:
[0016] 1. Start the first motor to drive the worm to rotate. When the worm rotates, it drives the worm wheel to rotate. When the worm wheel rotates, the connecting shaft drives the fan to rotate, thereby adjusting the angle of the fan and improving the power generation efficiency. Start the second motor to drive the screw to rotate. When the screw rotates, the limit block can make the connecting column move up and down through the support column, thereby driving the fixing seat and the fan to move up and down, and then the height of the fan can be adjusted to reduce the impact of bad weather on the fan.
[0017] 2. When the sea conditions are relatively bad, the anchor chain and the floating platform will not drift in a large range under the action of the counterweight block, and when the anchor chain is subjected to too much impact, the counterweight cylinder can reduce the impact load on the anchor chain and avoid damage to the connection between the counterweight cylinder and the anchor chain. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2It is a schematic diagram of the connection structure between the support column and the connecting column;
[0020] Figure 3 yes Figure 2 A schematic diagram of the structure at center A;
[0021] Figure 4 It is a structural diagram of the counterweight cylinder.
[0022] Figure numerals: 1. column; 2. fan; 3. fixed seat; 4. first motor; 5. worm; 6. worm gear; 7. connecting shaft; 8. support column; 9. connecting column; 10. second motor; 11. battery; 12. screw; 13. limit block; 14. limit groove; 15. connecting rod; 16. anchor chain; 17. anchor foundation; 18. buoy; 19. counterweight cylinder; 20. upper through hole; 21. lower through hole; 22. buffer chamber; 23. counterweight block; 24. guide rod; 25. buffer spring; 26. limit ring; 27. water flow hole. DETAILED DESCRIPTION
[0023] The present invention will be described in further detail below with reference to the accompanying drawings. Example 1
[0024] refer to Figure 1 、 Figure 2 and Figure 3 A shallow water floating wind power generation platform is characterized in that it includes a floating platform, which includes three columns 1 connected to each other, and the columns 1 are connected to each other by connecting rods 15. A support column 8 is fixed on one of the columns 1, and the upper end of the support column 8 is connected to a connecting column 9. The upper end of the connecting column 9 is provided with a fixed seat 3, and a first motor 4 is provided on one side of the fixed seat 3. The output end of the first motor 4 is fixedly connected to a worm 5, and the outer side of the worm 5 is threadedly connected to a worm wheel 6. The inner ring of the worm wheel 6 is fixedly connected to a connecting shaft 7, and the top of the connecting shaft 7 passes through the top of the fixed seat 3 and is connected to the wind turbine 2.
[0025] The first motor 4 is started to drive the worm 5 to rotate. When the worm 5 rotates, it can drive the worm wheel 6 to rotate. When the worm wheel 6 rotates, the connecting shaft 7 can drive the fan 2 to rotate, thereby adjusting the angle of the fan 2 and improving the power generation efficiency.
[0026] In this embodiment, the connecting column 9 is slidably set on the support column 8, and a second motor 10 is set on the inner wall of the support column 8. The end of the connecting column 9 located in the support column 8 is threadedly connected to a screw rod 12, and the second motor 10 is transmission-connected to the screw rod 12.
[0027] Start the second motor 10 to drive the screw rod 12 to rotate. When the screw rod 12 rotates, the connecting column 9 can be raised and lowered through the support column 8 under the action of the limit block 13, thereby driving the fixing seat 3 and the fan 2 to rise and fall, and then the height of the fan 2 can be adjusted to reduce the impact of bad weather on the fan 2.
[0028] Preferably, the outer side of the connecting column 9 is fixedly connected to a limiting block 13, and the inner wall of the supporting column 8 is provided with a limiting groove 14, and the limiting block 13 is slidably set in the limiting groove 14. The limiting groove 14 can limit the range of the connecting column 9 sliding up and down to ensure structural stability. Example 2
[0029] refer to Figure 1 and Figure 4 A mooring assembly is connected to the column 1, and the mooring assembly includes an anchor chain 16. One end of the anchor chain 16 is connected to the column 1, and the other end is connected to the anchor foundation 17. Several groups of buoy assemblies are provided on the anchor chain 16. There are two groups of buoy assemblies, and each group of buoy assemblies includes three buoys 18. The anchor chain 16 between the two groups of buoy assemblies is connected to a counterweight cylinder 19 through a fixed rope.
[0030] A buffer cavity 22 is provided in the counterweight cylinder 19 , and an upper through hole 20 and a lower through hole 21 connected to the buffer cavity 22 are respectively provided on the upper and lower sides of the counterweight cylinder 19 . A counterweight block 23 is slidably provided in the buffer cavity 22 , and a plurality of water flow holes 27 are provided on the counterweight block 23 .
[0031] When the sea conditions are relatively bad, the anchor chain 16 and the floating platform will not drift over a large range under the action of the counterweight block 23, and when the anchor chain 16 is subjected to too great an impact, the counterweight cylinder 19 can reduce the impact load on the anchor chain 16 and avoid damage to the connection between the counterweight cylinder 19 and the anchor chain 16.
[0032] Preferably, the upper and lower ends of the water flow hole 27 are in an outwardly flared trumpet shape, which reduces the impact of seawater on the surface of the counterweight block 23 and allows the seawater to quickly pass through the counterweight block 23.
[0033] In this embodiment, a plurality of guide rods 24 are vertically fixed in the buffer cavity 22, and the guide rods 24 are all inserted into the counterweight block 23. Buffer springs 25 are sleeved on the guide rods 24 located above and below the counterweight block 23, and limiting rings 26 are provided in the buffer cavity 22 located above and below the counterweight block 23.
[0034] When the anchor chain 16 is impacted and shakes up and down, the fixed rope drives the counterweight cylinder 19 up and down, causing the counterweight block 23 to move relative to the counterweight cylinder 19. Seawater flows up and down through the water flow holes 27 on the counterweight block 23, acting as a buffer. At the same time, the counterweight block 23 slides up and down along the guide rod 24. The two buffer springs 25 also act as a buffer, reducing the impact at the connection between the anchor chain 16 and the counterweight cylinder 19, ensuring the safety of the mooring structure. In addition, the upper and lower limit rings 26 limit the sliding range of the counterweight block 23, preventing the buffer springs 25 from excessive deformation and being unable to recover.
Claims
1. A shallow water floating wind power generation platform, characterized in that: The floating platform comprises three mutually connected columns (1), a fixed seat (3) is mounted on one of the columns (1), and a fan (2) is rotatably mounted on the fixed seat (3); A mooring assembly is connected to the column (1), and the mooring assembly includes an anchor chain (16). One end of the anchor chain (16) is connected to the column (1), and the other end is connected to an anchor foundation (17). A plurality of buoy assemblies are provided on the anchor chain (16).
2. The shallow water floating wind power generation platform according to claim 1, characterized in that: A first motor (4) is provided on one side of the fixing seat (3); an output end of the first motor (4) is fixedly connected to a worm (5); an outer thread of the worm (5) is connected to a worm wheel (6); an inner ring of the worm wheel (6) is fixedly connected to a connecting shaft (7); a top of the connecting shaft (7) passes through the top of the fixing seat (3) and is fixedly connected to the bottom of the fan (2).
3. The shallow water floating wind power generation platform according to claim 1, characterized in that: A connecting column (9) is fixedly provided at the bottom of the fixing seat (3), and a supporting column (8) is slidably connected to the outer side of the connecting column (9), and the lower end of the supporting column (8) is fixedly provided on the column (1).
4. The shallow water floating wind power generation platform according to claim 3, characterized in that: A second motor (10) is provided on the inner wall of the support column (8), a screw rod (12) is threadedly connected to the end of the connecting column (9) located inside the support column (8), and the second motor (10) is transmission-connected to the screw rod (12).
5. The shallow water floating wind power generation platform according to claim 4, characterized in that: The outer side of the connecting column (9) is fixedly connected to a limiting block (13), the inner wall of the supporting column (8) is provided with a limiting groove (14), and the limiting block (13) is slidably arranged in the limiting groove (14).
6. The shallow water floating wind power generation platform according to claim 1, characterized in that: The buoy assemblies are provided in two groups, each group of buoy assemblies includes three buoys (18), and a counterweight cylinder (19) is connected to the anchor chain (16) between the two groups of buoy assemblies via a fixed rope.
7. The shallow water floating wind power generation platform according to claim 6, characterized in that: A buffer cavity (22) is provided in the counterweight cylinder (19), and an upper through hole (20) and a lower through hole (21) communicating with the buffer cavity (22) are respectively provided on the upper and lower side surfaces of the counterweight cylinder (19). A counterweight block (23) is slidably provided in the buffer cavity (22), and a plurality of water flow holes (27) are provided on the counterweight block (23).
8. The shallow water floating wind power generation platform according to claim 7, characterized in that: A plurality of guide rods (24) are vertically fixed in the buffer cavity (22), and the plurality of guide rods (24) are inserted into the counterweight block (23). Buffer springs (25) are sleeved on the guide rods (24) located above and below the counterweight block (23), and limiting rings (26) are provided in the buffer cavities (22) located above and below the counterweight block (23).