An assembled offshore wind turbine

Abstract

The application relates to an assembled offshore wind power generator, the top of a first floating plate is fixedly connected with a first connecting rod and two second connecting rods, the top of the first connecting rod and the two second connecting rods is fixedly connected with a mounting plate for placing a wind power generator set; the bottom of the first floating plate is rotationally provided with a second floating plate, the bottom of the second floating plate is provided with supporting legs at four corner positions, the ends, away from the second floating plate, of the supporting legs are fixedly connected with suction cylinders for increasing buoyancy; a buffer mechanism is arranged between the first floating plate and the second floating plate and is used for slowing down the inclination of the first floating plate, so that the first floating plate is more stable; a driving mechanism is arranged at the top of the first floating plate and is used for driving marine organisms around the suction cylinders and birds on the sea surface, so that the wind power generator set is safer in operation; the problems that the whole foundation is inclined when the existing sea waves beat the base plate, the shaking seriously affects the use of the wind power generator set, and the birds flying on the sea surface are easy to collide with the fan blades, causing damage are solved.

Description

Technical Field

[0001] This invention belongs to the field of wind power generation technology, and particularly relates to a prefabricated offshore wind turbine. Background Technology

[0002] With increasing global emphasis on environmental protection and the development and utilization of renewable resources, wind energy, as a clean and renewable source, has gradually expanded from onshore to offshore, especially in the vast deep sea where it holds immense development potential. Deep-sea floating wind power represents the trend and direction for the large-scale development of offshore wind power and is currently a hot topic in international offshore wind farm development and construction. Floating wind power is considered a powerful tool for global offshore wind power to reach the deep sea.

[0003] Depending on the different water depth conditions, appropriate foundation structure types are adopted. Offshore wind power can be divided into fixed and floating types according to the type of supporting foundation, including monopile foundations, jacket foundations, TLP (Tension Leg Platform) foundations, semi-submersible foundations, single-column foundations, etc. Among them, fixed foundations are suitable for shallow waters of 0-30 meters, TLP and semi-submersible foundations are suitable for medium water depths of 30-100 meters, and single-column foundations are suitable for deep-sea areas above 100 meters.

[0004] Currently, most of the offshore wind farms built in China use fixed foundations. In deep-sea offshore wind farms, if fixed offshore wind turbines are used, their weight and engineering cost will increase significantly with the water depth. Therefore, fixed wind turbine foundations are not suitable for deep-sea environments, and floating wind turbine foundations have become the preferred foundation structure type for offshore wind farms in deep-sea areas.

[0005] However, existing offshore wind turbine foundations typically have different dampers installed at different locations to dissipate energy in all directions, so that the main structure can withstand less impact load. Under the action of loads such as waves, ocean currents, wind, earthquakes, and impacts, the damage to the main structure of the offshore wind turbine can be effectively reduced, the service life of the offshore wind turbine can be extended, and maintenance costs can be reduced.

[0006] The foundation of this power generation tower also has the following disadvantages when in use: energy consumption is offset by a damper during use, but when waves hit the base plate, the entire foundation will tilt and sway, which seriously affects the use of the generator set. In addition, there are many birds on the sea surface, and if they are not driven away, they are likely to collide with the fan blades when flying, causing damage. Summary of the Invention

[0007] In view of this, in order to solve the problems in the prior art where the entire foundation tilts and shakes when waves hit the base plate, which seriously affects the use of the generator set, and where there are many birds on the sea surface, if they are not driven away, they are likely to collide with the fan blades and cause damage, the present invention provides a prefabricated offshore wind turbine.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A prefabricated offshore wind turbine includes: a first float and a wind turbine generator set. The top of the first float is fixedly connected to a first connecting rod and two second connecting rods. The top of the first connecting rod and the two second connecting rods are fixedly connected to the same mounting plate. The wind turbine generator set is fixedly connected to the top of the mounting plate. The first connecting rod and the two second connecting rods are arranged in a pyramid shape to make them more stable. A second float is rotatably mounted on the bottom of the first float. Support legs are provided at the four corners of the bottom of the second float. Suction cylinders for increasing buoyancy are fixedly connected to the ends of the support legs away from the second float. The suction cylinders are fixed to the riverbed by anchor cables. Steel wire ropes are fixedly connected between adjacent suction cylinders.

[0010] A buffer mechanism, located between the first float and the second float, is used to reduce the tilt of the first float and make it more stable.

[0011] The deflector mechanism, located on top of the first float, is used to drive away marine life near the suction tube and birds on the sea surface, making the operation of the wind turbine safer.

[0012] Furthermore, the buffer mechanism includes a rotating ring rotatably connected to the bottom of the first float plate. Multiple first rotating blocks are fixedly connected to the rotating ring and the adjacent side of the second float plate. The same damper is rotatably connected between two corresponding upper and lower first rotating blocks.

[0013] Furthermore, an embedded block is fixedly connected through the top of the first floating plate, and a first universal ball is embedded in the bottom of the embedded block. A support column is fixedly connected between the first universal ball and the second floating plate.

[0014] Furthermore, a second universal ball is embedded at each of the four corners of the bottom of the second floating plate. A connecting column is fixedly connected to the outer wall of the second universal ball, and a second rotating block is fixedly connected to the end of the connecting column away from the second universal ball. The outrigger is rotatably connected to the inner wall of the second rotating block.

[0015] Furthermore, the driving mechanism includes a fixed column fixedly connected to the top of the first floating plate, a fixed plate fixedly sleeved on the outer wall of the fixed column, a fixed ring sleeved on the outer wall of the fixed column, the fixed plate fixedly connected to the inner wall of the fixed ring, a rotating plate rotatably sleeved on the outer wall of the fixed column, a connecting rod fixedly connected to one side of the rotating plate, and a striking head for striking the fixed ring fixedly connected to the top of the connecting rod.

[0016] Furthermore, an inverted L-shaped rod that contacts the fan blade is fixedly connected to the top of the rotating plate, and a torsion spring is sleeved on the outer wall of the fixed column. The two ends of the torsion spring are fixedly connected to the rotating plate and the first floating plate respectively on their respective adjacent sides.

[0017] Furthermore, a sound amplification cover is fixedly fitted onto the outer wall of the fixing ring.

[0018] Furthermore, a waterproof cover is fixedly connected to the top of the fixed column.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. The prefabricated offshore wind turbine disclosed in this invention can float the wind turbine on the sea surface through a first float, a second float, and suction cylinders. The suction cylinders are connected to the riverbed by anchor cables to prevent them from drifting. When the waves are large, the first float will tilt. The first float, through the support column, can drive the damper to work, which can reduce the tilt and automatically reset. At the same time, the setting of the second rotating block can enable the outriggers to rotate, so that when the first float moves upward, the four suction cylinders can move closer to each other and slow down the movement speed. When sinking, the four suction cylinders can be driven to expand outward to slow down the descent and buffer when the waves hit the first float.

[0021] 2. The prefabricated offshore wind turbine disclosed in this invention can drive an inverted L-shaped rod to rotate via the fan blades. The inverted L-shaped rod drives a rotating plate to rotate, and the rotating plate drives a connecting rod to rotate, causing the striking head to move away from the inner wall of the fixed ring. When the fan blades disengage from the second rotating block, the rotating plate resets under the force of the torsion spring, causing the striking head to strike the fixed ring. The striking sound is amplified by the sound amplification cover, thereby achieving the function of repelling birds. Furthermore, the striking sound can be transmitted into the sea through the fixed post and the first floating plate to drive away fish and prevent fish and birds from colliding with the device.

[0022] 3. The prefabricated offshore wind turbine disclosed in this invention, through the setting of dampers, outriggers and suction cylinders, can reduce the tilt of the first floating plate when waves hit it, making it more stable during use. Furthermore, the fan blades can drive the striking head to strike the fixing ring, causing a striking sound to scare away birds and fish, making it safer to use and easier to assemble and disassemble.

[0023] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 This is a three-dimensional structural schematic diagram of a prefabricated offshore wind turbine according to the present invention;

[0026] Figure 2 This is a schematic diagram of the damper structure of a prefabricated offshore wind turbine according to the present invention.

[0027] Figure 3 This is a schematic diagram of the support leg structure of a prefabricated offshore wind turbine according to the present invention;

[0028] Figure 4 This is an exploded structural diagram of a bird deterrence mechanism for a prefabricated offshore wind turbine according to the present invention.

[0029] Figure 5 This is a top view of the prefabricated offshore wind turbine of the present invention with the waterproof cover removed.

[0030] Figure 6 For the present invention Figure 3 Enlarged structural diagram of section A.

[0031] Reference numerals: 1. First float; 2. First connecting rod; 3. Second connecting rod; 4. Mounting plate; 5. Wind turbine generator; 6. Damper; 7. Second float; 8. Outrigger; 9. Suction cylinder; 10. Wire rope; 11. Support column; 12. Anchor cable; 13. First omnidirectional ball; 14. First rotating block; 15. Rotating ring; 16. Embedded block; 17. Second rotating block; 18. Fixed column; 19. Rotating plate; 20. Connecting rod; 21. Striking head; 22. Fixed plate; 23. Fixed ring; 24. Sound amplification cover; 25. Waterproof cover; 26. Torsion spring; 27. Inverted L-shaped rod; 28. Second omnidirectional ball; 29. ​​Connecting column. Detailed Implementation

[0032] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0033] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0034] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0035] like Figures 1-6 The prefabricated offshore wind turbine shown includes: a first float plate 1 and a wind turbine generator set 5. The top of the first float plate 1 is fixedly connected to a first connecting rod 2 and two second connecting rods 3. The top of the first connecting rod 2 and the two second connecting rods 3 are fixedly connected to the same mounting plate 4. The wind turbine generator set 5 is fixedly connected to the top of the mounting plate 4. The first connecting rod 2 and the two second connecting rods 3 are arranged in a pyramid shape to make the entire wind turbine generator set 5 more stable.

[0036] The bottom of the first float plate 1 is rotatably provided with a second float plate 7. The bottom of the second float plate 7 is provided with support legs 8 at the four corners. The end of the support leg 8 away from the second float plate 7 is fixedly connected to a suction cylinder 9 for increasing buoyancy. The suction cylinder 9 is fixed to the riverbed by anchor cables 12. A steel wire rope 10 is fixedly connected between two adjacent suction cylinders 9.

[0037] A buffer mechanism, positioned between the first float 1 and the second float 7, is used to reduce the tilt of the first float 1, making it more stable. (See reference...) Figure 1 and Figure 2 The buffer mechanism includes a rotating ring 15 rotatably connected to the bottom of the first float 1. Multiple first rotating blocks 14 are fixedly connected to the rotating ring 15 and the side of the second float 7 that are close to each other. The same damper 6 is rotatably connected between two corresponding first rotating blocks 14. In the above technical solution, the damper 6 can be set to consume the force of the waves and reduce the tilting of the first float 1.

[0038] Reference Figure 2An embedded block 16 is fixedly connected through the top of the first float 1, and a first universal ball 13 is embedded in the bottom of the embedded block 16. A support column 11 is fixedly connected between the first universal ball 13 and the second float 7. In the above technical solution, the setting of the first universal ball 13 can make the first float 1 tilt, and after tilting, it can be reset by the damper 6.

[0039] Reference Figure 3 and Figure 6 The bottom four corners of the second float 7 are each embedded with a second universal ball 28. The outer wall of the second universal ball 28 is fixedly connected to a connecting column 29. The end of the connecting column 29 away from the second universal ball 28 is fixedly connected to a second rotating block 17. The support leg 8 is rotatably connected to the inner wall of the second rotating block 17. In the above technical solution, the setting of the second universal ball 28 can change the position of the suction cylinder 9, which is convenient to increase the resistance when the first float 1 floats.

[0040] The driving mechanism is located on the top of the first float 1 and is used to drive away marine life and birds on the sea surface near the suction cylinder 9, making the operation of the wind turbine generator 5 safer. In the above technical solution, the buffer mechanism can reduce the tilt of the first float 1 when it is hit by waves, and the driving mechanism can drive away marine life and birds on the sea surface near the suction cylinder 9, making the operation of the wind turbine generator 5 safer.

[0041] Reference Figure 1 , Figure 4 and Figure 5 The driving mechanism includes a fixed post 18 fixedly connected to the top of the first float 1, a fixed plate 22 fixedly sleeved on the outer wall of the fixed post 18, a fixed ring 23 sleeved on the outer wall of the fixed post 18, the fixed plate 22 fixedly connected to the inner wall of the fixed ring 23, a rotating plate 19 rotatably sleeved on the outer wall of the fixed post 18, a connecting rod 20 fixedly connected to one side of the rotating plate 19, and a striking head 21 for striking the fixed ring 23 fixedly connected to the top of the connecting rod 20. In the above technical solution, by reciprocatingly moving the rotating plate 19, the striking head 21 can be driven to move and strike the fixed ring 23, causing the fixed ring 23 to make a sound, thereby driving away fish and birds.

[0042] Reference Figure 4 The top of the rotating plate 19 is fixedly connected to an inverted L-shaped rod 27 that contacts the fan blade. The outer wall of the fixed column 18 is fitted with a torsion spring 26. The two ends of the torsion spring 26 are fixedly connected to the rotating plate 19 and the first floating plate 1 on their respective adjacent sides. In the above technical solution, the fan blade is rotated by the wind, which can drive the inverted L-shaped rod 27 to move. The inverted L-shaped rod 27 drives the rotating plate 19 to rotate, so that the striking head 21 moves away from the fixed ring 23. When the inverted L-shaped rod 27 moves away from the fan blade, the rotating plate 19 drives the striking head 21 to strike the fixed ring 23 under the force of the torsion spring 26, thus saving an additional power source.

[0043] Reference Figure 4 The outer wall of the fixing ring 23 is fixedly fitted with a sound amplification cover 24. In the above technical solution, the sound amplification cover 24 can amplify the sound emitted by the fixing ring 23, which is convenient for driving away birds.

[0044] Reference Figure 4 A waterproof cover 25 is fixedly connected to the top of the fixed column 18. In the above technical solution, the waterproof cover 25 can waterproof the striking head 21, the fixing ring 23 and the sound amplification cover 24, making them more durable and reducing rainwater corrosion.

[0045] However, as is well known to those skilled in the art, the working principle and wiring method of the wind turbine generator set 5 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0046] When in use, this prefabricated offshore wind turbine is installed at sea. The wind turbine generator 5 can float on the sea surface through the first float plate 1, the second float plate 7, and the suction cylinders 9. The suction cylinders 9 are connected to the riverbed by the anchor cable 12 to prevent them from drifting. When the waves are large, the first float plate 1 will tilt. The first float plate 1 can drive the damper 6 to work through the support column 11 to reduce the tilt and can automatically reset. At the same time, the second rotating block 17 can make the outriggers 8 rotate so that the four suction cylinders 9 can move closer to each other when the first float plate 1 moves upward.

[0047] When the first float 1 sinks on the second float 7, it can drive the four suction cylinders 9 to expand outward, slowing down the descent of the wind turbine and buffering the impact of waves on the first float 1. At the same time, when the wind blows the wind turbine 5 to work, the inverted L-shaped rod 27 can be rotated through the fan blades. The inverted L-shaped rod 27 drives the rotating plate 19 to rotate, and the rotating plate 19 drives the connecting rod 20 to rotate, causing the striking head 21 to move away from the inner wall of the fixed ring 23. When the fan blades disengage from the second rotating block 17, the rotating plate 19 returns to its original position under the force of the torsion spring 26, causing the striking head 21 to strike the fixed ring 23. The striking sound is amplified by the sound amplification cover 24, thereby achieving the function of repelling birds. The striking sound can also be transmitted into the sea through the fixed post 18 and the first float 1 to drive away fish and prevent fish and birds from hitting the device.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A prefabricated offshore wind turbine, characterized in that, include: The first floating plate (1) and the wind turbine generator set (5) are connected to the top of the first floating plate (1), and the top of the first connecting rod (2) and the two second connecting rods (3) are fixedly connected to the same mounting plate (4). The wind turbine generator set (5) is fixedly connected to the top of the mounting plate (4). The first connecting rod (2) and the two second connecting rods (3) are set in a pyramid shape. The bottom of the first floating plate (1) is rotatably provided with a second floating plate (7). The bottom four corners of the second floating plate (7) are provided with support legs (8). The end of the support leg (8) away from the second floating plate (7) is fixedly connected with a suction cylinder (9) for increasing buoyancy. The suction cylinder (9) is fixed to the riverbed by anchor cable (12). The two adjacent suction cylinders (9) are fixedly connected with a steel wire rope (10). A buffer mechanism is provided between the first float (1) and the second float (7) to reduce the tilt of the first float (1) and make it more stable; The buffer mechanism includes a rotating ring (15) rotatably connected to the bottom of the first float (1), and multiple first rotating blocks (14) are fixedly connected to the rotating ring (15) and the side of the second float (7) that are close to each other. The same damper (6) is rotatably connected between two corresponding first rotating blocks (14). An embedded block (16) is fixedly connected through the top of the first float (1), and a first universal ball (13) is embedded in the bottom of the embedded block (16). A support column (11) is fixedly connected between the first universal ball (13) and the second float (7). A second universal ball (28) is embedded in the four corners of the bottom of the second float (7). A connecting column (29) is fixedly connected to the outer wall of the second universal ball (28). A second rotating block (17) is fixedly connected to the end of the connecting column (29) away from the second universal ball (28). The support leg (8) is rotatably connected to the inner wall of the second rotating block (17). The driving mechanism, located on top of the first float (1), is used to drive away marine life near the suction tube (9) and birds on the sea surface, making the wind turbine generator (5) operate more safely.

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