Novel floating wind power foundation

Abstract

The utility model provides a novel floating type wind power foundation. The novel floating type wind power foundation comprises a first stand column, a second stand column, a third stand column, a floating body assembly and a supporting assembly. The first stand column, the second stand column and the third stand column are distributed in a triangular mode, the floating body assembly is of a triangular structure, the three top ends of the floating body assembly are connected to the side wall of the bottom of one stand column respectively, the supporting assembly is of an A-shaped structure and is provided with a tip end and two protruding ends, and the tip end is connected to the side wall of the top of the first stand column. The two protruding ends are connected to the top side wall of the second stand column and the top side wall of the third stand column respectively. The offshore wind turbine device has the advantages of being simple in structure, low in construction cost, convenient to operate and maintain and the like.

Description

Technical Field

[0001] The utility model relates to the field of offshore wind power generation, in particular to a novel floating wind power foundation. Background Art

[0002] Currently, floating wind turbine foundations are primarily constructed of steel, resulting in high construction costs. As offshore wind turbines grow larger, the amount of steel used in floating wind turbine foundations is also increasing, further raising the construction and installation costs of floating wind turbine foundations. Considering factors such as sea resources, installation and transportation, and the maturity of floating wind turbine technology, semi-submersible floating foundations are widely used in China as carriers for high-power wind turbines, offering improved platform mobility. Current semi-submersible wind turbine foundation structures utilize interconnected support structures in different directions, utilizing complex connections and numerous supports to enhance stability. However, this dense and complex support structure increases the number of locations requiring safety inspections, complicating operations and maintenance. Furthermore, the more complex load patterns at these locations increase the risk of structural fatigue on the floating platform. Furthermore, to ensure sufficient strength, higher safety factors are required, which increases steel usage and costs.

[0003] It can be seen that the existing technology has the problems of high construction cost, high risk of structural fatigue and high difficulty in operation and maintenance. Utility Model Content

[0004] The utility model provides a novel floating wind power foundation, which solves the problems in the prior art of high construction cost, high risk of structural fatigue and high difficulty in operation and maintenance.

[0005] The utility model provides a novel floating wind power foundation, comprising a first column, a second column, a third column, a floating body assembly and a supporting assembly;

[0006] The first column, the second column and the third column are distributed in a triangle, the floating assembly has a triangular structure, the three top ends of the floating assembly are respectively connected to the bottom side wall of a column, the support assembly has an A-shaped structure and has a tip and two protruding ends, the tip is connected to the top side wall of the first column, and the two protruding ends are respectively connected to the top side wall of the second column and the top side wall of the third column; the offshore wind turbine equipment is arranged on the first column.

[0007] The new floating wind turbine foundation of the present invention simplifies the four-column type commonly used in traditional technical solutions into a three-column type. The connection structure is simple, which reduces the connection stress points of each supporting structure and effectively reduces the risk of structural fatigue. In addition, the support component adopts an A-shaped structure, which reduces the amount of steel used and reduces construction costs. In addition, for floating foundations with mooring points above or near the waterline, the A-shaped support component uses two protruding ends to construct an outward-expanding avoidance space, which can provide a larger open space on the upper part of the floating foundation, making it easier for the operation and maintenance mother ship to avoid structures such as mooring anchor chains, making operation and maintenance operations safer and more convenient.

[0008] Optionally, the support assembly includes a first support rod, a second support rod, and a third support rod;

[0009] The two ends of the first strut are respectively connected to the top side wall of the first column and the top side wall of the second column, the two ends of the second strut are respectively connected to the top side wall of the first column and the top side wall of the third column, and the two ends of the third strut are respectively connected to the first strut and the second strut to form an A-shaped structure.

[0010] Optionally, two ends of the third strut are respectively connected to the middle position of the first strut and the middle position of the second strut.

[0011] Optionally, the float assembly includes a first float rod, a second float rod, and a third float rod connected together;

[0012] The first floating rod, the second floating rod and the third floating rod form a triangular structure.

[0013] Optionally, the first floating rod, the second floating rod and the third floating rod are all hollow inside and have rectangular cross-sections.

[0014] The embodiment of the present invention can provide a certain displacement through the hollow buoy assembly (including the first buoy, the second buoy and the third buoy), reduce the draft in the migration and undocking states, and improve the applicability and flexibility of the dock channel water depth during construction and transportation. In addition, the cross-sectional shape of each buoy (such as the first buoy, the second buoy and the third buoy) is a rectangular structure, which has higher rigidity, better stability and safety than a circular structure with the same amount of steel.

[0015] Optionally, the novel floating wind turbine foundation further includes reinforcing ribs, which are arranged inside the first buoy, the second buoy, and the third buoy. The shape of the reinforcing ribs includes at least one of the following: X-shaped, T-shaped, V-shaped, and grid-shaped.

[0016] Optionally, the plane where the floating body assembly is located is the projection plane, the projection of the floating body assembly on the projection plane is the first projection, the projection of the support assembly on the projection plane is the second projection, and at least part of the second projection is located within the outer contour of the first projection.

[0017] The embodiment of the present invention adopts the above-mentioned structure to enable most of the structures of the floating assembly and the supporting assembly to be arranged correspondingly, so that the entire floating wind power foundation has highly consistent extensibility in the vertical direction and high stability, and thus has higher anti-interference ability (for example, the ability to resist waves and sea winds, etc.).

[0018] Optionally, the first pillar, the second pillar and the third pillar are distributed in an equilateral triangle.

[0019] Optionally, the float assembly has an equilateral triangle structure.

[0020] Optionally, the support component is an axisymmetric structure, and the symmetry axis of the support component passes through the tip of the support component and the midpoint of the two protruding ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a new floating wind power foundation according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic top view of the structure of each column and support assembly in the new floating wind turbine foundation according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic top view of the structure of each column and floating body assembly in the new floating wind power foundation according to an embodiment of the present utility model;

[0024] Figure 4 Schematic diagram of the relative positions of the floating assembly and the supporting assembly in the new floating wind power foundation of the present utility model embodiment Figure 1 ;

[0025] Figure 5 Schematic diagram of the relative positions of the floating assembly and the supporting assembly in the new floating wind power foundation of the present utility model embodiment Figure 2 .

[0026] Description of reference numerals:

[0027] 1: New floating wind power foundation;

[0028] 11: first column; 12: second column; 13: third column;

[0029] 2: Floating body assembly; 21: First floating rod; 22: Second floating rod; 23: Third floating rod;

[0030] 3: Support assembly; 31: First support rod; 32: Second support rod; 33: Third support rod; 34: Tip; 35: Protruding end; 36: Protruding end;

[0031] S1: first projection; S2: second projection. DETAILED DESCRIPTION

[0032] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0033] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0035] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0036] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0038] See Figure 1 The present invention provides a novel floating wind power foundation 1, comprising a first column 11, a second column 12, a third column 13, a floating body assembly 2 and a support assembly 3;

[0039] The first column 11, the second column 12 and the third column 13 are distributed in a triangular shape, and the floating assembly 2 is a triangular structure. The three top ends of the floating assembly 2 are respectively connected to the bottom side wall of a column, wherein the floating assembly 2 can be, for example, a triangular closed ring structure, such as Figure 1As shown, its three corners are respectively connected to the bottom side wall of a column. In other alternative embodiments, the floating body assembly 2 can also be a triangular flat plate structure.

[0040] The support assembly 3 has an A-shaped structure and has a tip 34 and two protruding ends (for example, protruding end 35 and protruding end 36), the tip 34 is connected to the top side wall of the first column 11, and the two protruding ends (for example, protruding end 35 and protruding end 36) are respectively connected to the top side wall of the second column 12 and the top side wall of the third column 13; the offshore wind turbine equipment is arranged on the first column 11.

[0041] In one embodiment, the first column 11, the second column 12, and the third column 13 are arranged in an equilateral triangle. In other alternative embodiments, they may be arranged in an isosceles triangle or other triangular arrangement. Furthermore, in one embodiment, the float assembly 2 has an equilateral triangle structure. In other alternative embodiments, the float assembly 2 may also be arranged in an isosceles triangle or other triangular arrangement.

[0042] The new floating wind power foundation 1 of the present invention simplifies the four-column type commonly used in traditional technical solutions into a three-column type. The lower floating body assembly 2 is a triangular structure with high stability and a simple overall connection structure. It reduces the connection stress points of each supporting structure and effectively reduces the risk of structural fatigue. In addition, the support assembly 3 adopts an A-shaped structure, which can not only ensure sufficient structural strength in the main force direction, but also reduce the amount of steel used and the construction cost by reducing the support length in the secondary force direction. In addition, for floating foundations with mooring points above or near the waterline, the A-shaped support assembly 3 uses two protruding ends (such as protruding end 35 and protruding end 36) to construct an outward-expanding avoidance space, which can make the upper part of the floating foundation have a larger open space, making it easier for the operation and maintenance mother ship to avoid structures such as mooring anchor chains, making operation and maintenance operations safer and more convenient.

[0043] In one embodiment, Figure 2 As shown, the support assembly 3 includes a first support rod 31, a second support rod 32, and a third support rod 33. The two ends of the first support rod 31 are respectively connected to the top side wall of the first column 11 and the top side wall of the second column 12, the two ends of the second support rod 32 are respectively connected to the top side wall of the first column 11 and the top side wall of the third column 13, and the two ends of the third support rod 33 are respectively connected to the first support rod 31 and the second support rod 32 to form an A-shaped structure. Specifically, one end of the first support rod 31 close to the first column 11 and the other end of the second support rod 32 close to the first column 11 together constitute the tip 34 of the support assembly 3. The other end of the first support rod 31 constitutes the protruding end 35 of the support assembly 3, and the other end of the second support rod 32 constitutes the protruding end 36 of the support assembly 3.

[0044] The structure in which the third strut 33 is connected to the first strut 31 and the second strut 32 avoids direct connection with the non-load-bearing columns (the second column 12 and the third column 13), reduces the external connection nodes of the support assembly 3, reduces the risk of structural fatigue, and facilitates installation and maintenance.

[0045] Furthermore, the ends of the third brace 33 are respectively connected to the middle position of the first brace 31 and the middle position of the second brace 32. Those skilled in the art will appreciate that the middle position can be understood as the midpoint of the first brace 31 or the second brace 32 or a position close to the midpoint. In other alternative embodiments, the third brace 33 can also be connected to other positions of the first brace 31 and the second brace 32. As long as the three braces are connected to form an A-shaped structure, it does not depart from the scope of the embodiments of the present invention.

[0046] In one embodiment, support assembly 3 is an axisymmetric structure, with the axis of symmetry of support assembly 3 passing through the tip 34 of support assembly 3 and the midpoints of the two protruding ends (e.g., protruding end 35 and protruding end 36). Alternatively, support assembly 3 as a whole is symmetrical about the midline of third support rod 33.

[0047] The present invention is not limited to the shape of the support rods. For example, in one exemplary embodiment, the cross-sectional shapes of the first support rod 31, the second support rod 32, and the third support rod 33 are all circular. In other alternative embodiments, the cross-sectional shape of each support rod may also be rectangular, diamond-shaped, elliptical, etc.

[0048] In one embodiment, Figure 3 As shown, the float assembly 2 includes a first float rod 21, a second float rod 22, and a third float rod 23 connected together to form a triangular structure. Furthermore, the first float rod 21, the second float rod 22, and the third float rod 23 are all hollow and have a rectangular cross-section.

[0049] The embodiment of the present invention uses a hollow float assembly 2 (including a first float 21, a second float 22 and a third float 23) as a cabin, which can provide a certain displacement, reduce the draft in the migration and undocking states, and improve the applicability and flexibility of the dock channel water depth during construction and transportation. In addition, the cross-sectional shape of each float (such as the first float 21, the second float 22 and the third float 23) is a rectangular structure, which has higher rigidity, better stability and safety than a circular structure with the same amount of steel.

[0050] Furthermore, in one embodiment, the novel floating wind turbine foundation 1 further includes reinforcing ribs disposed within the first buoy 21, the second buoy 22, and the third buoy 23. The reinforcing ribs may be, for example, T-shaped. Alternatively, they may be X-shaped, V-shaped, grid-shaped, cross-shaped, or a combination of various shapes. The provision of the reinforcing ribs increases the structural strength of the float assembly 2, providing it with improved impact resistance and enhancing the stability of the novel floating wind turbine foundation 1.

[0051] For further information, see Figure 4 and Figure 5 , taking the plane where the float assembly 2 is located as the projection plane, the projection of the float assembly 2 on the projection plane is the first projection S1, and the projection of the support assembly 3 on the projection plane is the second projection S2, and at least part of the second projection S2 is located within the outer contour of the first projection S1. Or it can be understood that along the extension direction or height direction of the column (such as the first column 11), the support assembly 3 and the float assembly 2 are at least partially overlapped. Among them, at least part can be understood as, in one embodiment, Figure 4 As shown, the float assembly 2 is a triangular closed ring structure. At this time, part of the structure of the support assembly 3 (such as the first support rod 31 and the second support rod 32) is overlapped with the float assembly 2. In one embodiment, as shown in FIG. Figure 5 As shown, the float assembly 2 is a triangular flat plate structure. At this time, the entire support assembly 3 is arranged to overlap with the float assembly 2.

[0052] The above structure enables most structures of the floating assembly 2 and the supporting assembly 3 to be arranged correspondingly, so that the entire floating wind power foundation has highly consistent extensibility in the vertical direction and high stability, and thus has higher anti-interference ability (such as the ability to resist waves and sea winds, etc.).

[0053] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A new type of floating wind power foundation, characterized by: It includes a first column, a second column, a third column, a floating body assembly and a supporting assembly; The first column, the second column and the third column are distributed in a triangle, the floating body assembly has a triangular structure, the three top ends of the floating body assembly are respectively connected to the bottom side wall of a column, the support assembly has an A-shaped structure and has a tip and two protruding ends, the tip is connected to the top side wall of the first column, and the two protruding ends are respectively connected to the top side wall of the second column and the top side wall of the third column; the offshore wind turbine equipment is arranged on the first column.

2. The novel floating wind power foundation according to claim 1 is characterized in that: The support assembly includes a first support rod, a second support rod and a third support rod; The two ends of the first strut are respectively connected to the top side wall of the first column and the top side wall of the second column, the two ends of the second strut are respectively connected to the top side wall of the first column and the top side wall of the third column, and the two ends of the third strut are respectively connected to the first strut and the second strut to form the A-shaped structure.

3. The novel floating wind power foundation according to claim 2 is characterized in that: Two ends of the third strut are respectively connected to the middle position of the first strut and the middle position of the second strut.

4. The novel floating wind power foundation according to claim 1, characterized in that: The float assembly includes a first float rod, a second float rod and a third float rod connected together; The first floating rod, the second floating rod and the third floating rod together form the triangular structure.

5. The novel floating wind power foundation according to claim 4 is characterized in that: The first floating rod, the second floating rod and the third floating rod are all hollow inside and have rectangular cross-sections.

6. The novel floating wind power foundation according to claim 5 is characterized in that: It also includes reinforcing ribs, the reinforcing ribs being arranged inside the first floating rod, the second floating rod, and the third floating rod; The shape of the reinforcement rib includes at least one of the following: X-shape, T-shape, V-shape, and grid shape.

7. The novel floating wind power foundation according to claim 1, characterized in that: The plane where the floating body assembly is located is the projection surface, the projection of the floating body assembly on the projection surface is the first projection, the projection of the supporting assembly on the projection surface is the second projection, and at least part of the second projection is located within the outer contour of the first projection.

8. The novel floating wind power foundation according to claim 1, characterized in that: The first column, the second column and the third column are distributed in an equilateral triangle.

9. The novel floating wind power foundation according to claim 1, characterized in that: The floating body assembly is an equilateral triangle structure.

10. The novel floating wind power foundation according to claim 1, characterized in that: The support component is an axisymmetric structure, and the symmetry axis of the support component passes through the tip of the support component and the midpoint of the two protruding ends.

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