Floating type offshore wind power polygonal bracket fan foundation

Abstract

The invention provides a floating type offshore wind power polygonal bracket fan foundation. The floating type offshore wind power polygonal bracket fan foundation comprises a floating base, stand column bases, supporting stand columns, a top reinforcing mechanism, a bottom supporting frame, anchor chains, an auxiliary frame and a propelling adjusting mechanism. Based on the arrangement of the top reinforcing mechanism and other structures, the supporting stability of the stand column base and the supporting stand column can be effectively improved, the supporting strength of the offshore wind power draught fan is improved, and supporting is firmer and more reliable; reverse power-assisted propulsion can be carried out through the propulsion adjusting mechanism at the bottom of the floating base, so that the whole foundation is moved to the original position, the anchor chain below the water surface is prevented from being dragged by large tension for a long time, and the service life of the anchor chain is prolonged; and auxiliary floating supporting can be carried out on the floating base, the water surface floating performance of the foundation is improved, and the floating base is more stable on the water surface and is not prone to inclination and rollover due to stress.

Description

Technical Field

[0001] The invention relates to a floating offshore wind power multi-angle frame wind turbine foundation, belonging to the technical field of offshore wind power. Background Art

[0002] With the growth of global energy demand and the improvement of environmental protection awareness, wind power, as a clean and renewable energy form, has received more and more attention and application. There are many types of floating foundations for offshore wind turbines, the main types are column type (Spar type), tension leg type (TLP type) and semi-submersible type (SEMI type).

[0003] As the core support of offshore wind turbines, the foundation of wind turbines has become particularly important. However, some existing support foundations often only set up a floating platform and then install fixed support columns as support parts. The stability of the support columns needs to be improved, and the existing support bases are sometimes affected by wind and offset during floating on the sea. When the offset is large, the anchor chain anchored at the bottom will be stretched straight, and the anchor chain will be in a tensioned state for a long time. The continuous tension will shorten its service life. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a floating offshore wind power multi-angle frame wind turbine foundation. The floating offshore wind power multi-angle frame wind turbine foundation is based on structural settings such as a top reinforcement mechanism, which can effectively improve the stability of the column seat and the supporting column, thereby improving the supporting strength of the offshore wind turbine and making the support more firm and reliable.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a floating offshore wind power multi-angle wind turbine foundation, comprising:

[0007] floating base;

[0008] A column seat, fixedly installed on the top of the floating base;

[0009] A supporting column, fixedly connected to the top of the column base;

[0010] A top reinforcement mechanism is arranged at the top of the floating base, the top of the top reinforcement mechanism is connected to the bottom of the support column, and is used to consolidate the support column;

[0011] A bottom support frame is arranged at the bottom of the floating base and is used to support the bottom of the floating base;

[0012] Anchor chain, arranged at the bottom of the bottom support frame, is used to anchor on the seabed and to pull the bottom support frame, column seat and floating base;

[0013] Auxiliary frames are arranged on both sides of the column base to provide auxiliary support for the column base;

[0014] A propulsion adjustment mechanism is arranged on the side of the bottom of the floating base and is used to adjust the power of the floating base;

[0015] The floating mechanism is arranged at three side positions of the floating base to assist the floating work of the floating base.

[0016] The floating base is arranged in a triangular shape, and the top reinforcement mechanism includes a fixed column, a main bracket fixedly connected to the bottom of the fixed column and a sub-bracket fixedly connected to the top of the fixed column. The bottom of the supporting column is fixedly connected with a fixed plate, and one end of the main bracket and one end of the sub-bracket are fixedly connected to the bottom of the fixed plate.

[0017] The fixing column is fixedly installed on the corner of the top of the floating base, the bottom of the fixing column is fixedly connected with a fixing disc, and the bottom of the fixing disc is connected to the surface of the floating base.

[0018] The bottom support frame comprises a tripod and a bottom support steel column. The corners of the tripod are fixedly connected to the bottom support steel column. The top and bottom of the bottom support steel column are connected with connecting pieces.

[0019] The auxiliary frame includes a diagonal support plate, a reinforcement plate and a reinforcement rib. The reinforcement plates are fixedly connected to both sides of the diagonal support plate, the reinforcement rib is fixedly connected to the top of the diagonal support plate, and the bottom of the diagonal support plate is fixedly connected to the surface of the floating base.

[0020] The propulsion adjustment mechanism includes a cylindrical shell, an inner frame fixed to one side of the inner wall of the cylindrical shell, and a waterproof motor installed in the middle of the inner frame. The output end of the waterproof motor is fixedly connected to a rotating shaft, and a propulsion impeller is fixedly installed at one end of the rotating shaft.

[0021] The waterproof motor is electrically connected to an external controller, and one side of the cylindrical shell is connected to the bottom surface of the floating base.

[0022] The floating mechanism comprises a floating board, a fixing frame, an air bag and a foam board. The bottom of the floating board is connected to the fixing frame, the air bag is installed inside the fixing frame, the bottom of the fixing frame is connected to the foam board, and the bottom of the foam board is provided with a plurality of auxiliary floating blocks.

[0023] The floating base comprises a substrate layer, a waterproof layer and an anti-corrosion layer. The waterproof layer is arranged on the outer side of the substrate layer, and the anti-corrosion layer is arranged on the side of the waterproof layer away from the substrate layer.

[0024] The base material layer is made of a hollow steel box, the waterproof layer is made of polyurethane, and the anti-corrosion layer is made of nickel alloy.

[0025] The beneficial effects of the present invention are as follows: based on the structural arrangement such as the top reinforcement mechanism, the stability of the column seat and the supporting column can be effectively improved, so that the supporting strength of the offshore wind turbine is improved, and the support is more firm and reliable; the propulsion adjustment mechanism at the bottom of the floating base can be used for reverse propulsion, so that the entire foundation is moved to the original position, avoiding the anchor chain under the water surface from being pulled by a large tension for a long time, thereby extending its service life; the floating base can be provided with auxiliary floating support, thereby improving the floating performance of the foundation on the water surface, making the floating base more stable on the water surface and not easy to be tilted and overturned due to force. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the floating offshore wind power multi-angle wind turbine foundation of the present invention;

[0027] Figure 2 yes Figure 1 Structural schematic diagram of the middle top reinforcement mechanism;

[0028] Figure 3 yes Figure 1 A schematic diagram of the structure of the midsole support frame;

[0029] Figure 4 yes Figure 1 Schematic diagram of the internal structure of the middle propulsion adjustment mechanism;

[0030] Figure 5 yes Figure 1 Structural diagram of the middle auxiliary frame;

[0031] Figure 6 yes Figure 1 Schematic diagram of the internal structure of the mid-floating mechanism;

[0032] Figure 7 yes Figure 1 Schematic diagram of the internal structure of the floating base.

[0033] In the figure: 1-floating base, 2-column seat, 3-support column, 4-top reinforcement mechanism, 5-bottom support frame, 6-anchor chain, 7-fixed plate, 8-auxiliary frame, 9-propulsion adjustment mechanism, 10-fixed column, 11-main bracket, 12-auxiliary bracket, 13-floating mechanism, 14-tripod, 15-bottom support steel column, 16-connecting plate, 17-cylindrical shell, 18-inner frame, 19-waterproof motor, 20-rotating shaft, 21-propulsion impeller, 22-slanting support plate, 23-reinforcement plate, 24-reinforcement rib, 25-fixed disc, 26-floating board, 27-fixed frame, 28-air bag, 29-foam board, 30-auxiliary floating block, 31-base material layer, 32-waterproof layer, 33-anti-corrosion layer. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0035] A first embodiment of the present invention relates to Figures 1 to 7 A floating offshore wind power multi-angle wind turbine foundation is shown, comprising:

[0036] Floating base 1;

[0037] A column seat 2 is fixedly mounted on the top of the floating base 1;

[0038] A supporting column 3 is fixedly connected to the top of the column base 2;

[0039] A top reinforcement mechanism 4 is arranged at the top of the floating base 1, and the top of the top reinforcement mechanism 4 is connected to the bottom of the support column 3, so as to consolidate and support the support column 3;

[0040] A bottom support frame 5 is provided at the bottom of the floating base 1 and is used to support the bottom of the floating base 1;

[0041] An anchor chain 6 is provided at the bottom of the bottom support frame 5 and is used to anchor on the seabed to pull the bottom support frame 5, the column seat 2 and the floating base 1;

[0042] Auxiliary frames 8 are arranged on both sides of the column base 2 to assist in supporting the column base 2;

[0043] A propulsion adjustment mechanism 9 is arranged on the side of the bottom of the floating base 1 and is used to adjust the power of the floating base 1;

[0044] The floating mechanism 13 is arranged at three side positions of the floating base 1 to assist the floating base 1 in floating work.

[0045] Thus, the entire foundation is anchored by the anchor chain 6, and the bottom of the anchor chain 6 is anchored to the seabed. During use, the anchor chain 6 pulls the bottom support frame 5, and then indirectly pulls the floating base 1. The bottom support frame 5 is supported below the water surface, and the floating base 1 floats above the water surface. The support column 3 is the support rod body of the offshore wind turbine, and the wind turbine is installed on it.

[0046] The second embodiment of the present invention is substantially the same as the first embodiment, mainly in that a further improvement is provided, wherein the floating base 1 is arranged in a triangular shape, and the top reinforcement mechanism 4 comprises a fixed column 10, a main bracket 11 fixedly connected to the bottom of the fixed column 10, and a sub-bracket 12 fixedly connected to the top of the fixed column 10, and a fixed plate 7 is fixedly connected to the bottom of the supporting column 3, and one end of the main bracket 11 and one end of the sub-bracket 12 are fixedly connected to the bottom of the fixed plate 7.

[0047] Furthermore, the fixing column 10 is fixedly installed at the corner of the top of the floating base 1 , and the bottom of the fixing column 10 is fixedly connected with a fixing disc 25 , and the bottom of the fixing disc 25 is connected to the surface of the floating base 1 .

[0048] The top reinforcement mechanism 4 provides a plurality of main supports 11 and auxiliary supports 12 to provide multi-angle support for the support column 3, thereby improving the stability of the support column 3 and providing a consolidated support for the side.

[0049] Furthermore, the bottom support frame 5 includes a tripod 14 and a bottom support steel column 15 . The corners of the tripod 14 are fixedly connected to the bottom support steel column 15 . The top and bottom of the bottom support steel column 15 are connected to connecting pieces 16 .

[0050] The tripod 14 and the bottom support steel column 15 match the size setting of the floating base 1 to support the bottom of the floating base 1, and the bottom is connected to the anchor chain 6 to facilitate anchoring and limiting the entire foundation.

[0051] Furthermore, the auxiliary frame 8 includes a diagonal support plate 22, a reinforcement plate 23 and a reinforcement rib 24, both sides of the diagonal support plate 22 are fixedly connected with the reinforcement plate 23, the top of the diagonal support plate 22 is fixedly connected with the reinforcement rib 24, and the bottom of the diagonal support plate 22 is fixedly connected to the surface of the floating base 1.

[0052] The diagonal support plate 22 of the auxiliary frame 8 can diagonally support the bottom of the column seat 2 , and the reinforcing plate 23 and the reinforcing plate 23 can improve the supporting strength of the diagonal support plate 22 .

[0053] The third embodiment of the present invention is substantially the same as the first embodiment, mainly in that a further improvement is provided, wherein the propulsion adjustment mechanism 9 comprises a cylindrical shell 17, an inner frame 18 fixed to one side of the inner wall of the cylindrical shell 17, and a waterproof motor 19 installed in the middle of the inner frame 18, wherein the output end of the waterproof motor 19 is fixedly connected to a rotating shaft 20, and a propulsion impeller 21 is fixedly installed at one end of the rotating shaft 20.

[0054] The propulsion adjustment mechanism 9 is below the water surface. Starting the waterproof motor 19 can drive the rotating shaft 20 and the propulsion impeller 21 to rotate. The rotation of the propulsion impeller 21 can form a reverse propulsion force in the water, thereby assisting the floating base 1 to move to one side, making it easier to perform fine-tuning on the floating base 1.

[0055] Furthermore, the waterproof motor 19 is electrically connected to an external controller, and one side of the cylindrical housing 17 is connected to the bottom surface of the floating base 1 .

[0056] Furthermore, the floating mechanism 13 includes a floating board 26, a fixed frame 27, an air bag 28 and a foam board 29. The bottom of the floating board 26 is connected to the fixed frame 27, the air bag 28 is installed inside the fixed frame 27, the bottom of the fixed frame 27 is connected to the foam board 29, and a plurality of auxiliary floating blocks 30 are provided at the bottom of the foam board 29.

[0057] The floating board 26 and the foam board 29 can make the side of the floating base 1 have greater buoyancy, and the air bag 28 can further enhance the buoyancy of the floating mechanism 13 after being inflated, so that the side of the floating base 1 is not easily lifted up, thereby improving the stability of floating on the water surface.

[0058] Furthermore, the floating base 1 includes a substrate layer 31 , a waterproof layer 32 and an anti-corrosion layer 33 . The waterproof layer 32 is disposed on the outer side of the substrate layer 31 , and the anti-corrosion layer 33 is disposed on the side of the waterproof layer 32 away from the substrate layer 31 .

[0059] Furthermore, the base material layer 31 is made of a hollow steel box, the waterproof layer 32 is made of polyurethane, and the anti-corrosion layer 33 is made of a nickel alloy.

[0060] The waterproof layer 32 can reduce the corrosion of the base material layer 31 by water, and the anti-corrosion layer 33 improves the corrosion resistance of the surface of the floating base 1.

[0061] In summary, the entire foundation is anchored by the anchor chain 6, and the bottom support frame 5 is supported below the water surface, the floating base 1 floats above the water surface, the support column 3 is the support rod body of the offshore wind turbine, and a top reinforcement mechanism 4 is provided on the top of the floating base 1 to reinforce and support the support column 3, and an auxiliary frame 8 is provided to assist in supporting the support column 3, thereby improving the stability of the support of the column seat 2 and the support column 3, so that the support strength of the offshore wind turbine is improved, and the support is more firm and reliable. In addition, if the entire foundation is severely deviated on the water surface due to the action of wind during use, the propulsion adjustment mechanism 9 at the bottom of the floating base 1 can be used for counter-assistance propulsion to move the entire foundation to its original position, thereby avoiding the anchor chain 6 from being pulled by a large tension for a long time and extending its service life. In addition, the floating mechanism 13 arranged on the side of the floating base 1 can assist in floating the floating base 1, so that the floating base 1 is more stable on the water surface and not easy to be tilted and overturned due to force.

[0062] Based on this, the present invention:

[0063] 1. A top reinforcement mechanism is provided on the top of the floating base to reinforce the support column, and an auxiliary frame is provided to assist in supporting the support column, thereby improving the stability of the column seat and the support column, thereby improving the support strength of the offshore wind turbine and making the support more firm and reliable;

[0064] 2. If the entire foundation is severely deflected on the water surface due to wind force during use, the propulsion adjustment mechanism at the bottom of the floating base can be used for reverse propulsion to move the entire foundation to its original position, thus preventing the anchor chain under the water surface from being pulled by large tension for a long time, thereby extending its service life;

[0065] 3. The floating mechanism arranged on the side of the floating base can provide auxiliary floating support for the floating base, improve the floating performance of the foundation on the water surface, make the floating base more stable on the water surface, and not easy to tilt and overturn due to force.

Claims

1. A floating offshore wind power multi-angle wind turbine foundation, characterized in that: include: Floating base (1); A column seat (2) is fixedly mounted on the top of the floating base (1); A supporting column (3) fixedly connected to the top of the column base (2); A top reinforcement mechanism (4) is arranged at the top of the floating base (1), the top of the top reinforcement mechanism (4) being connected to the bottom of the supporting column (3) for consolidating and supporting the supporting column (3); A bottom support frame (5) is arranged at the bottom of the floating base (1) and is used to support the bottom of the floating base (1); An anchor chain (6) is arranged at the bottom of the bottom support frame (5) and is used for anchoring on the seabed to pull the bottom support frame (5), the column seat (2) and the floating base (1); Auxiliary frames (8) are arranged on both sides of the column base (2) and are used to provide auxiliary support for the column base (2); A propulsion adjustment mechanism (9) is arranged on the side of the bottom of the floating base (1) and is used to adjust the power of the floating base (1); The floating mechanism (13) is arranged at three side positions of the floating base (1) and is used to assist the floating base (1) in floating work.

2. The floating offshore wind power multi-angle wind turbine foundation according to claim 1, characterized in that: The floating base (1) is arranged in a triangular shape, and the top reinforcement mechanism (4) comprises a fixed column (10), a main bracket (11) fixedly connected to the bottom of the fixed column (10), and a sub-bracket (12) fixedly connected to the top of the fixed column (10); the bottom of the supporting column (3) is fixedly connected to a fixed plate (7), and one end of the main bracket (11) and one end of the sub-bracket (12) are fixedly connected to the bottom of the fixed plate (7).

3. The floating offshore wind power multi-angle wind turbine foundation according to claim 2, characterized in that: The fixing column (10) is fixedly mounted on the corner of the top of the floating base (1), the bottom of the fixing column (10) is fixedly connected to a fixing disc (25), and the bottom of the fixing disc (25) is connected to the surface of the floating base (1).

4. The floating offshore wind power multi-angle wind turbine foundation according to claim 1, characterized in that: The bottom support frame (5) comprises a tripod (14) and a bottom support steel column (15), the corners of the tripod (14) are fixedly connected to the bottom support steel column (15), and the top and bottom of the bottom support steel column (15) are connected to connecting plates (16).

5. The floating offshore wind power multi-angle wind turbine foundation according to claim 1, characterized in that: The auxiliary frame (8) comprises a diagonal support plate (22), a reinforcement plate (23) and a reinforcement rib (24); both sides of the diagonal support plate (22) are fixedly connected to the reinforcement plate (23); the top of the diagonal support plate (22) is fixedly connected to the reinforcement rib (24); and the bottom of the diagonal support plate (22) is fixedly connected to the surface of the floating base (1).

6. The floating offshore wind power multi-angle wind turbine foundation according to claim 1, characterized in that: The propulsion adjustment mechanism (9) comprises a cylindrical shell (17), an inner frame (18) fixed to one side of the inner wall of the cylindrical shell (17), and a waterproof motor (19) installed in the middle of the inner frame (18); the output end of the waterproof motor (19) is fixedly connected to a rotating shaft (20), and one end of the rotating shaft (20) is fixedly installed with a propulsion impeller (21).

7. The floating offshore wind power multi-angle wind turbine foundation according to claim 6, characterized in that: The waterproof motor (19) is electrically connected to an external controller, and one side of the cylindrical housing (17) is connected to the bottom surface of the floating base (1).

8. The floating offshore wind power multi-angle wind turbine foundation according to claim 1, characterized in that: The floating mechanism (13) comprises a floating board (26), a fixed frame (27), an air bag (28) and a foam board (29); the bottom of the floating board (26) is connected to the fixed frame (27); the air bag (28) is installed inside the fixed frame (27); the bottom of the fixed frame (27) is connected to the foam board (29); and the bottom of the foam board (29) is provided with a plurality of auxiliary floating blocks (30).

9. The floating offshore wind power multi-angle wind turbine foundation according to claim 1, characterized in that: The floating base (1) comprises a base material layer (31), a waterproof layer (32) and an anti-corrosion layer (33); the waterproof layer (32) is provided on the outer side of the base material layer (31); and the anti-corrosion layer (33) is provided on a side of the waterproof layer (32) away from the base material layer (31).

10. The floating offshore wind power multi-angle wind turbine foundation according to claim 9, characterized in that: The base material layer (31) is made of a hollow steel box, the waterproof layer (32) is made of polyurethane, and the anti-corrosion layer (33) is made of a nickel alloy.

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