Floating wind power plant

Abstract

The utility model provides a kind of floating wind power generation device, comprising: wind turbine generator unit;Support structure, be set below wind turbine generator unit;Mooring cable, connect on support structure;Wherein, support structure includes: multiple mutually connected pontoons;Multiple first connecting pieces, at least one first connecting piece is provided on each pontoon, the first end of first connecting piece is connected with pontoon, the second end of first connecting piece is provided with first mounting portion;At least one second connecting piece, both ends of second connecting piece are connected with first connecting piece, both ends of second connecting piece are provided with second mounting portion, and first mounting portion and second mounting portion are inserted and matched with each other.The technical scheme of the application effectively solves the problem that multiple pontoons of the floating wind power generation device in the related art are not convenient to connect.

Description

Technical Field

[0001] This utility model relates to the field of offshore power generation technology, and more specifically, to a floating wind power generation device. Background Technology

[0002] A floating wind turbine is an offshore wind power system that mounts a wind turbine on a floating platform and is secured to the seabed by anchor chains and mooring systems.

[0003] In existing technologies, floating wind power generation devices include a floating support platform and a generator set mounted on the floating support platform. The floating support platform generally consists of multiple interconnected pontoons, with connecting steel structures installed between the pontoons. These connecting steel structures are welded to each pontoon, making the connection of the multiple pontoons quite complex. Utility Model Content

[0004] The main objective of this invention is to provide a floating wind power generation device to solve the problem that multiple pontoons in floating wind power generation devices are not easy to connect in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a floating wind power generation device is provided, comprising: a wind turbine generator; a support structure disposed below the wind turbine generator; and a mooring cable connected to the support structure; wherein the support structure comprises: a plurality of interconnected pontoons; a plurality of first connectors, each pontoon having at least one first connector, a first end of the first connector being connected to the pontoon, and a second end of the first connector having a first mounting portion; and at least one second connector, both ends of the second connector being connected to the first connector, and both ends of the second connector having a second mounting portion, the first mounting portion and the second mounting portion being interlocked.

[0006] Furthermore, one of the first mounting part and the second mounting part is a connecting groove, and the other of the first mounting part and the second mounting part is a plug, which is inserted into the connecting groove.

[0007] Furthermore, the support structure also includes multiple third connectors. The second end of the first connector is provided with a first through hole, both ends of the second connector are provided with second through holes, and the third connectors pass through the first and second through holes.

[0008] Furthermore, the wind turbine unit includes multiple units, each wind turbine unit includes a shaft and blades disposed on the outer periphery of the shaft, the shaft extends in a vertical direction, and each pontoon is provided with a shaft, the first end of the shaft being rotatably disposed on the pontoon.

[0009] Furthermore, the floating wind power generation device also includes a reinforcement frame, which is hinged to the second end of each shaft.

[0010] Furthermore, the reinforcement frame includes multiple hinge seats and at least one reinforcing rod. The multiple hinge seats are arranged in a one-to-one correspondence with multiple rotating shafts. The first end of the hinge seat is movably disposed at the second end of the rotating shaft, and at least one reinforcing rod is connected between two adjacent hinge seats.

[0011] Furthermore, the reinforcement frame also includes multiple mounting rings, with a mounting ring at the second end of each hinge seat, and both ends of the reinforcing rod are connected to the mounting rings.

[0012] Furthermore, the hinge seat includes a connecting ball, and a limiting cavity is provided at the second end of the rotating shaft, within which the connecting ball is rotatably disposed.

[0013] Furthermore, the hinged seat also includes a support rod, on which a mounting ring is disposed.

[0014] Furthermore, the plurality of pontoons includes a first pontoon located at the center and second pontoons surrounding the outer periphery of the first pontoon, with at least one second connector provided between the first pontoon and each second pontoon, and at least one second connector provided between two adjacent second pontoons.

[0015] The present invention relates to a floating wind power generation device comprising a wind turbine, a support structure located below the wind turbine, and mooring cables connected to the support structure. The support structure includes multiple pontoons, multiple first connectors, and at least one second connector. The pontoons are interconnected. Each pontoon has at least one first connector, with its first end connected to the pontoon. The second end of the first connector has a first mounting portion, and both ends of the second connector connect to the first connectors on different pontoons. Both ends of the second connector have second mounting portions that interlock with the first mounting portions. This interlocking arrangement of the first and second mounting portions facilitates easier connection of the two ends of the second connector to the first connectors on different pontoons. Furthermore, the first and second connectors allow for the splicing of different pontoons, simplifying the construction and installation of the support structure and enabling multiple pontoons to support the wind turbine. Therefore, the present invention effectively solves the problem of inconvenient connection of multiple pontoons in floating wind power generation devices in related technologies. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A front view structural schematic diagram of an embodiment of a floating wind power generation device according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A top view of the structure of a floating wind power generation device;

[0019] Figure 3 It shows Figure 1 A three-dimensional structural diagram of the reinforcement frame for a floating wind power generation device;

[0020] Figure 4 It shows Figure 3 A partially enlarged structural diagram of point A of the reinforcement frame;

[0021] Figure 5 It shows Figure 1 A cross-sectional view of the structure of a floating wind power generation device when the shaft is connected to the hinge seat.

[0022] Figure 6 It shows Figure 1 A three-dimensional structural diagram of the connection between the first and second connectors of a floating wind power generation device;

[0023] Figure 7 It shows Figure 6 A schematic diagram of the exploded structure of a floating wind power generation device.

[0024] The above figures include the following reference numerals:

[0025] 10. Wind turbine generator set; 11. Shaft; 111. Limiting cavity; 12. Blade; 20. Support structure; 21. Float; 211. First float; 212. Second float; 22. First connector; 221. First mounting part; 222. First through hole; 23. Second connector; 231. Second mounting part; 232. Second through hole; 24. Third connector; 30. Mooring cable; 40. Reinforcing frame; 41. Hinge seat; 411. Connecting ball; 412. Support rod; 42. Reinforcing rod; 43. Mounting ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. 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 scope of protection of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] like Figure 1 and Figure 2 As shown, the floating wind power generation device of this embodiment includes: a wind turbine generator 10, a support structure 20, and a mooring cable 30. The support structure 20 is disposed below the wind turbine generator 10. The mooring cable 30 is connected to the support structure 20. The support structure 20 includes: a plurality of interconnected pontoons 21, a plurality of first connectors 22, and at least one second connector 23. Each pontoon 21 is provided with at least one first connector 22, the first end of which is connected to the pontoon 21, and the second end of which is provided with a first mounting portion 221. Both ends of the second connector 23 are connected to the first connectors 22, and both ends of the second connector 23 are provided with second mounting portions 231, with the first mounting portions 221 and the second mounting portions 231 engaging in a plug-in fit.

[0030] Using the technical solution of this embodiment, the floating wind power generation device includes a wind turbine 10, a support structure 20 disposed below the wind turbine 10, and a mooring cable 30 connected to the support structure 20. The support structure 20 includes multiple pontoons 21, multiple first connectors 22, and at least one second connector 23. The multiple pontoons 21 are interconnected. Each pontoon 21 is provided with at least one first connector 22, and the first end of the first connector 22 is connected to the pontoon 21. The second end of the first connector 22 is provided with a first mounting portion 221. The two ends of the second connector 23 are connected to the first connectors 22 on different pontoons 21, and both ends of the second connector 23 are provided with second mounting portions 231 that are inserted and cooperate with the first mounting portions 221. With the above-described configuration, the first mounting part 221 and the second mounting part 231 are interlocked, making it easier for both ends of the second connecting member 23 to connect to the first connecting member 22 on different floats 21. This allows different floats 21 to be joined together under the action of the first connecting member 22 and the second connecting member 23, facilitating the construction and installation of the support structure 20, and enabling multiple floats 21 to support the wind turbine 10. Therefore, the technical solution of this embodiment effectively solves the problem of inconvenient connection of multiple floats in floating wind power generation devices in related technologies.

[0031] It should be noted that the first connector 22 includes a mounting block, and the second connector 23 includes a first connecting rod.

[0032] The first connector 22 is located on the side of the float 21.

[0033] One end of the mooring cable 30 is connected to the buoy 21, and the other end is connected to the mooring structure.

[0034] It should be noted that the mooring structure can be on the seabed, a breakwater, or other structures.

[0035] like Figure 6 and Figure 7 As shown, in this embodiment, the first mounting part 221 is a connecting groove, and the second mounting part 231 is a plug, which is inserted into the connecting groove. By inserting the plug into the slot, the first connector 22 and the second connector 23 can be connected, thereby enabling the connection of different floats 21.

[0036] In other embodiments, the first mounting part 221 is a plug and the second mounting part 231 is a connecting groove.

[0037] like Figure 6 and Figure 7As shown, in this embodiment, the support structure 20 further includes multiple third connectors 24. The second end of the first connector 22 is provided with a first through hole 222, and both ends of the second connector 23 are provided with second through holes 232. The third connectors 24 pass through the first through holes 222 and the second through holes 232. The third connectors 24 can be inserted into the first through holes 222 and the second through holes 232, thereby connecting the first connector 22 and the second connector 23 under the action of the third connectors 24.

[0038] It should be noted that the third connecting piece 24 is a bolt.

[0039] Specifically, multiple third connectors 24 can be provided. The axes of the multiple third connectors 24 are arranged in parallel and form a circle.

[0040] like Figure 1 and Figure 2 As shown, in this embodiment, the wind turbine generator set 10 includes multiple units. Each wind turbine generator set 10 includes a rotating shaft 11 and blades 12 disposed on the outer periphery of the rotating shaft 11. The rotating shaft 11 extends vertically, and each float 21 is provided with a rotating shaft 11. The first end of the rotating shaft 11 is rotatably disposed on the float 21. Providing multiple wind turbine generator sets 10 can increase the power generation of the floating wind power generation device. The airflow can blow the blades 12, which in turn can drive the rotating shaft 11 to rotate relative to the float 21, thereby achieving power generation.

[0041] It should be noted that each wind turbine 10 includes multiple blades 12, which are spaced apart around the axis of the shaft 11. Each blade 12 is connected to the shaft 11 by at least one second connecting rod.

[0042] In this embodiment, the wind turbine 10 is a vertical axis wind turbine. Vertical axis wind turbines have a large torque around their shafts, and a single-column platform is insufficient to restrain the platform's torsion. Tension leg platforms lack sufficient horizontal restraint, and the mooring tension of semi-submersible platforms is much greater than that of horizontal axis wind turbines. This embodiment addresses this by setting the shafts of multiple wind turbines 10 to rotate in different directions. Compared to all turbines rotating in the same direction, this reduces the torque load and consequently lowers the tension of the mooring cables. The opposite rotation directions of adjacent vertical axis wind turbines result in a more rational wake flow, which contributes to the power generation performance of multi-turbine wind farms and reduces the adverse effects of wake flow between multiple wind turbines. Specifically, the rotation direction of each wind turbine's shaft can be determined using methods such as computational fluid dynamics analysis.

[0043] like Figure 1 and Figure 3As shown, in this embodiment, the floating wind power generation device also includes a reinforcing frame 40, which is hinged to the second end of each rotating shaft 11. By setting the reinforcing frame 40, not only can the second end of the rotating shaft 11 be connected, but the second end of the rotating shaft 11 can also be rotated normally. This also allows multiple wind turbine units 10 to form an integral structure, enabling them to share the load, thus improving the load-bearing capacity of the floating wind power generation device and reducing the load on each rotating shaft 11, thereby reducing the impact of fatigue load on the wind turbine unit 10.

[0044] like Figure 3 and Figure 4 As shown, in this embodiment, the reinforcement frame 40 includes multiple hinge seats 41 and at least one reinforcing rod 42. The multiple hinge seats 41 are correspondingly arranged with multiple rotating shafts 11. The first end of each hinge seat 41 is movably disposed at the second end of each rotating shaft 11. At least one reinforcing rod 42 connects adjacent hinge seats 41. The hinge seats 41 can move at the second end of the rotating shaft 11, allowing the reinforcing rod 42 to also move relative to the second end of the rotating shaft 11. This avoids the problem of high stress among multiple wind turbine units 10 when the hinge seats 41 are fixedly connected to the rotating shaft 11. The reinforcing rod 42 can connect to the hinge seats 41, enabling the rotating shafts 11 of different wind turbine units 10 to be connected. This allows multiple wind turbine units 10 to form an integral structure, enabling them to more effectively resist airflow from different directions, thereby reducing the impact of fatigue loads.

[0045] In this embodiment, a reinforcing rod 42 is connected between two adjacent hinge seats 41.

[0046] like Figure 3 and Figure 4 As shown, in this embodiment, the reinforcing frame 40 further includes multiple mounting rings 43. Each hinge seat 41 has a mounting ring 43 at its second end, and both ends of the reinforcing rod 42 are connected to the mounting rings 43. The mounting rings 43 can be installed to the second end of the hinge seat 41, and the reinforcing rod 42 can be connected to the hinge seat 41 through the mounting rings 43. In this way, the reinforcing rod 42 can connect the rotating shafts 11 of different wind turbine units 10 to form an integral structure.

[0047] like Figures 3 to 5As shown, in this embodiment, the hinge seat 41 includes a connecting ball 411, and a limiting cavity 111 is provided at the second end of the rotating shaft 11. The connecting ball 411 is rotatably disposed within the limiting cavity 111. By providing the limiting cavity 111, the connecting ball 411 can be installed to the second end of the rotating shaft 11, and the connecting ball 411 can rotate within the limiting cavity 111. This allows the reinforcing frame 40 to not only connect multiple rotating shafts 11, but also makes the connection of multiple rotating shafts 11 more flexible, reduces the mutual stress between multiple rotating shafts 11, and also allows the rotating shafts 11 to rotate relative to the reinforcing frame 40, thereby realizing power generation.

[0048] The rotating shaft 11 includes an installation section and a cover plate section connected to the installation section. A blade 12 is mounted on the installation section, and a portion of the installation section away from the cover plate section is rotatably mounted on the float 21. A first clearance cavity is provided on the end face of the installation section near the cover plate section, and a second clearance cavity is provided on the cover plate section, penetrating the thickness direction of the cover plate section. The first and second clearance cavities form a limiting cavity. A connecting ball is installed between the installation section and the cover plate section, with part of its structure located within the first clearance cavity and part of its structure located within the second clearance cavity.

[0049] The mounting section and the cover plate section can be connected by threads or by welding.

[0050] like Figure 3 and Figure 5 As shown, in this embodiment, the hinge seat 41 further includes a support rod 412, and a mounting ring 43 is disposed on the support rod 412. The mounting ring 43 can be connected to the support rod 412, thereby the reinforcing rod 42 can be connected to the support rod 412, and the reinforcing frame 40 can connect multiple rotating shafts 11.

[0051] The support rod 412 is disposed on the surface of the connecting ball 411 located outside the limiting cavity 111.

[0052] In this embodiment, a mounting ear plate is provided on the outer periphery of the mounting ring 43, and the reinforcing rod 42 is connected to the mounting ear plate by bolts.

[0053] In other embodiments, the mounting ring 43 and the support rod 412 can be threaded together or welded together. Of course, a structure similar to the insertion and engagement of the first mounting part 221 and the second mounting part 231 can also be used for the connection.

[0054] like Figure 2As shown, in this embodiment, the plurality of pontoons 21 includes a first pontoon 211 located at the center and a plurality of second pontoons 212 surrounding the first pontoon 211. At least one second connector 23 is provided between the first pontoon 211 and each second pontoon 212, and at least one second connector 23 is provided between two adjacent second pontoons 212. This arrangement allows for the placement of more pontoons 21, making efficient use of space. It also enables the multiple pontoons 21 to be interconnected, facilitating stable power generation of the floating wind power generation device on the sea surface.

[0055] Among the multiple second floats 212 arranged around the outer periphery of the first float 211, at least three second floats 212 are connected to mooring cables 30. Compared with a single vertical axis fan or two vertical axis fans, this improves the utilization rate of mooring cables, reduces the amount of mooring work, and further reduces manufacturing costs.

[0056] In this embodiment, a second connector 23 is provided between the first float 211 and each second float 212. A second connector 23 is provided between two adjacent second floats 212.

[0057] In this embodiment, in the circumferential direction of the first float 211, a second float 212 that is not connected to the mooring cable 30 is provided between two adjacent second floats 212 connected to the mooring cable 30.

[0058] In this embodiment, the floating wind power generation device consists of multiple second floats 212 arranged around the outer periphery of the first float 211, forming a hexagonal structure. The first float 211, located at the center, is situated at the center of the hexagonal structure. The hexagonal structure is a regular hexagon.

[0059] In this embodiment, multiple pontoons 21 are assembled, and each wind turbine 10 is modularized, installed onto each pontoon 21, and connected by a reinforcing frame 40, ultimately forming a multi-wind turbine floating assembly platform.

[0060] In the description of this utility model, it should be understood that "multiple" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0061] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0062] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0063] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A floating wind power generation device, characterized in that, include: Wind turbine (10); A support structure (20) is provided below the wind turbine (10); A mooring cable (30) is attached to the support structure (20); The supporting structure (20) includes: Multiple interconnected pontoons (21); Multiple first connectors (22), each of the floats (21) is provided with at least one first connector (22), the first end of the first connector (22) is connected to the float (21), and the second end of the first connector (22) is provided with a first mounting part (221). At least one second connector (23) is provided, both ends of which are connected to the first connector (22). Both ends of the second connector (23) are provided with a second mounting part (231), and the first mounting part (221) and the second mounting part (231) are inserted into each other.

2. The floating wind power generation device according to claim 1, characterized in that, One of the first mounting part (221) and the second mounting part (231) is a connecting groove, and the other of the first mounting part (221) and the second mounting part (231) is a plug, which is inserted into the connecting groove.

3. The floating wind power generation device according to claim 1, characterized in that, The support structure (20) also includes a plurality of third connectors (24). The second end of the first connector (22) is provided with a first through hole (222), and both ends of the second connector (23) are provided with second through holes (232). The third connectors (24) pass through the first through hole (222) and the second through hole (232).

4. The floating wind power generation device according to claim 1, characterized in that, The wind turbine (10) includes multiple units, each wind turbine (10) includes a shaft (11) and blades (12) disposed on the outer periphery of the shaft (11). The shaft (11) extends in a vertical direction, and each float (21) is provided with a shaft (11). The first end of the shaft (11) is rotatably disposed on the float (21).

5. The floating wind power generation device according to claim 4, characterized in that, The floating wind power generation device also includes a reinforcement frame (40), which is hinged to the second end of each of the rotating shafts (11).

6. The floating wind power generation device according to claim 5, characterized in that, The reinforcement frame (40) includes a plurality of hinge seats (41) and at least one reinforcing rod (42). The plurality of hinge seats (41) are arranged in a one-to-one correspondence with the plurality of rotating shafts (11). The first end of the hinge seat (41) is movably disposed at the second end of the rotating shaft (11). At least one reinforcing rod (42) is connected between two adjacent hinge seats (41).

7. The floating wind power generation device according to claim 6, characterized in that, The reinforcement frame (40) also includes multiple mounting rings (43), with a mounting ring (43) provided at the second end of each hinge seat (41), and both ends of the reinforcing rod (42) are connected to the mounting rings (43).

8. The floating wind power generation device according to claim 6, characterized in that, The hinge seat (41) includes a connecting ball (411), and a limiting cavity (111) is provided at the second end of the rotating shaft (11). The connecting ball (411) is rotatably disposed in the limiting cavity (111).

9. The floating wind power generation device according to claim 7, characterized in that, The hinge seat (41) also includes a support rod (412), and the mounting ring (43) is disposed on the support rod (412).

10. The floating wind power generation device according to any one of claims 1 to 9, characterized in that, The plurality of pontoons (21) include a first pontoon (211) located at the center and a second pontoon (212) surrounding the outer periphery of the first pontoon (211). At least one second connector (23) is provided between the first pontoon (211) and each of the second pontoons (212), and at least one second connector (23) is provided between two adjacent second pontoons (212).

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