Floating wind power foundation and wind power equipment

Abstract

The present invention discloses a floating wind turbine foundation and wind turbine equipment. The floating wind turbine foundation includes at least one floating body unit, which includes an annular floating body and a sway reduction plate assembly. The sway reduction plate assembly includes at least two sway reduction plates arranged vertically. The sway reduction plates are provided with a plurality of first flow-disrupting holes. The first flow-disrupting holes penetrate the sway reduction plates along their thickness. The first flow-disrupting holes of two adjacent sway reduction plates are vertically staggered. The topmost sway reduction plate is connected to the annular floating body. The upper surface of the topmost sway reduction plate and the inner peripheral wall of the annular floating body enclose a receiving groove. The present invention can effectively reduce the shaking and heaving amplitude of the wind turbine foundation, improve the stability of the wind turbine foundation, and improve the anti-overturning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power equipment, and in particular to a floating wind power foundation and wind power equipment. Background Art

[0002] Wind power is a pollution-free, renewable, clean energy source. Compared to land-based power generation, deep-sea wind power generation is more stable and generates greater power. In deep-sea areas, traditional fixed wind turbine foundations are difficult and costly to construct, making them unsuitable. Floating wind turbine foundations are generally used. To reduce the sway and heave of wind turbine foundations in wind and waves, some wind turbine foundations are equipped with several sway dampers to reduce the amplitude of sway and heave and improve stability. However, the existing structure and arrangement of sway dampers have limited effectiveness in reducing sway and heave, and their anti-overturning effectiveness needs to be improved. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a floating wind turbine foundation that can effectively reduce the shaking and heaving amplitude of the wind turbine foundation, improve the stability of the wind turbine foundation, and better resist overturning.

[0004] The present invention also provides a wind power device having the above-mentioned floating wind power foundation.

[0005] According to an embodiment of the first aspect of the present invention, a floating wind turbine foundation includes at least one floating body unit, wherein the floating body unit includes an annular floating body and a sway reduction plate assembly, wherein the sway reduction plate assembly includes at least two sway reduction plates arranged vertically, wherein the sway reduction plates are provided with a plurality of first spoiler holes, wherein the first spoiler holes penetrate the sway reduction plates along the thickness direction of the sway reduction plates, and the first spoiler holes of two adjacent sway reduction plates are vertically staggered, and the uppermost sway reduction plate is connected to the annular floating body, and the upper surface of the uppermost sway reduction plate and the inner peripheral wall of the annular floating body form a receiving groove.

[0006] The floating wind power foundation according to the embodiment of the present invention has at least the following beneficial effects:

[0007] In the present application, the floating unit includes at least two sway reduction plates arranged vertically, which exert greater damping on the seawater, and each sway reduction plate is provided with a first spoiler hole. The first spoiler holes of two adjacent sway reduction plates are staggered in the vertical direction. In this way, when the seawater causes vertical swing to the wind turbine foundation, part of the seawater will flow through the first spoiler holes of multiple sway reduction plates in turn, thereby changing the flow direction of the seawater, causing the seawater to flow in multiple directions, and increasing the flow path, effectively disturbing the vertical flow of the seawater, exerting greater additional damping on the vertical swing motion of the wind turbine foundation, and reducing the amplitude and frequency of the vertical swing motion of the wind turbine foundation. In addition, a receiving groove is formed between the upper surface of the topmost anti-sway plate and the inner peripheral wall of the annular float. When the annular float partially sinks into the sea, seawater will enter the receiving groove through the first spoiler hole. When the wind turbine foundation shakes and swings vertically, the seawater in the receiving groove cannot flow out of the first spoiler hole quickly. Therefore, the seawater in the receiving groove can also play a certain ballast role, reducing the shaking and swing amplitude of the wind turbine foundation. In addition, when the wind turbine foundation swings upward, the seawater in the receiving groove will flow out of the first spoiler hole in the opposite direction, thereby providing a certain damping, further reducing the swing amplitude of the wind turbine foundation, thereby further improving the stability of the wind turbine foundation and having a better anti-overturning effect.

[0008] According to some embodiments of the present invention, a plurality of ribs are provided between two adjacent anti-sway plates, and the ribs are provided with a plurality of second spoiler holes, which penetrate the ribs along the thickness direction of the ribs.

[0009] According to some embodiments of the present invention, the plurality of ribs are divided into two groups, the ribs in the same group are parallel to each other, the second spoiler holes of two adjacent ribs in the same group are staggered along the thickness direction of the ribs, and the ribs in different groups are cross-connected.

[0010] According to some embodiments of the present invention, the annular float includes an annular outer tube, an annular inner tube and a first concrete layer. The annular inner tube is arranged inside the annular outer tube and extends along the length direction of the annular outer tube. The first concrete layer is filled between the annular outer tube and the annular inner tube.

[0011] According to some embodiments of the present invention, a plurality of annular reinforcement tubes are arranged side by side at the bottom end of the first concrete layer, and the annular reinforcement tubes extend along the length direction of the annular outer tube, and / or a plurality of spiral ribs are arranged side by side at the top end of the first concrete layer, and the spiral ribs extend along the length direction of the annular outer tube.

[0012] According to some embodiments of the present invention, the floating wind power foundation also includes a column, which is connected to the annular floating body for installing a tower. The column includes a vertical outer tube, a vertical inner tube and a second concrete layer. The vertical outer tube is arranged inside the vertical outer tube, and the second concrete layer is filled between the vertical outer tube and the vertical inner tube.

[0013] According to some embodiments of the present invention, ballast water is contained in the annular inner tube, and the vertical inner tube is connected to the annular inner tube.

[0014] According to some embodiments of the present invention, a cable is provided between the vertical outer tube and the annular outer tube; and / or, a plurality of vertical reinforcement tubes are provided in the second concrete layer, and the plurality of vertical reinforcement tubes are arranged along the circumference of the vertical outer tube.

[0015] According to some embodiments of the present invention, the floating unit includes a plurality of annular floats, and the annular floats of the plurality of floating units are arranged in a circle; wherein two adjacent annular floats are in contact with each other and are detachably connected; or, the floating unit further includes a connecting portion, and two adjacent annular floats are spaced apart and are detachably connected through the connecting portion.

[0016] The wind power equipment according to the second embodiment of the present invention includes the floating wind power foundation described in the first embodiment.

[0017] The wind power equipment according to the embodiment of the present invention has at least the following beneficial effects:

[0018] The floating wind turbine foundation according to the first embodiment of the present invention can effectively reduce the shaking and heaving amplitude of the wind turbine foundation, improve the stability of the wind turbine foundation, and achieve better anti-overturning effect.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0021] Figure 1 This is a schematic structural diagram of a floating wind power foundation according to the present invention provided with one floating unit;

[0022] Figure 2 for Figure 1 A cross-sectional view of the annular floating body in FIG.

[0023] Figure 3 for Figure 1 A cross-sectional view of the column in FIG;

[0024] Figure 4 Schematic diagram of the connection between the rib plate and the anti-sway plate;

[0025] Figure 5 for Figure 1 A cross-sectional view of the anti-sway plate assembly in FIG.

[0026] Figure 6 Schematic diagram of the structure of two adjacent anti-sway plates;

[0027] Figure 7 This is a schematic structural diagram of a floating wind power foundation according to the present invention provided with a plurality of floating units;

[0028] Figure 8 This is a schematic diagram of a first connection of multiple floating units;

[0029] Figure 9 This is a schematic diagram of the second connection of multiple floating units.

[0030] Figure Number:

[0031] Floating unit 100; annular floating body 110; annular outer tube 111; annular inner tube 112; first concrete layer 113; annular reinforcement tube 114; spiral rib 115; ballast water 116; connecting portion 117; docking plate 118; sway reduction plate assembly 120; sway reduction plate 121; first spoiler hole 122; receiving groove 123; rib 124; second spoiler hole 125;

[0032] Column 200; vertical outer tube 210; vertical inner tube 220; second concrete layer 230; vertical reinforcement tube 240;

[0033] Cable 300;

[0034] Tower 400;

[0035] 500 wind turbines. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present invention, "a plurality" refers to two or more. The terms "first" and "second" are used solely to distinguish technical features and should not be construed as indicating or implying relative importance, or as implicitly indicating the number or order of the technical features indicated.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] Reference below Figures 1 to 9 A floating wind power foundation and a wind power device according to an embodiment of the present invention are described.

[0041] refer to Figures 1 to 9 As shown, the floating wind turbine foundation according to the first embodiment of the present invention includes at least one floating unit 100. Specifically, it can include one, two, three, six or other suitable numbers of floating units 100, which are determined according to the power, weight, etc. of the wind turbine generator set 500. For example, when a low-power wind turbine generator set 500 is used, only one floating unit 100 can be set. When a high-power wind turbine generator set 500 is used, multiple floating units 100 can be set. The floating unit 100 includes an annular float 110 and a sway reduction plate assembly 120.

[0042] The annular buoy 110 is annular in shape. The vertical projection of the outer wall of the annular buoy 110 can be triangular. The vertical projection of the inner wall of the annular buoy 110 can also be triangular. In this case, the annular buoy 110 can include three rectangular pontoons connected end to end. Of course, in other embodiments of the present invention, the annular buoy 110 can also be a circular ring, etc., which will not be repeated here.

[0043] The sway reduction plate assembly 120 includes at least two sway reduction plates 121 arranged vertically. Specifically, the sway reduction plates 121 may include two, three, four, or any other suitable number. For example, there may be two sway reduction plates 121. The sway reduction plates 121 may have their surfaces arranged horizontally, i.e., the thickness of the sway reduction plates 121 is vertical. The sway reduction plates 121 may be made of fiberglass reinforced plastic (FRP), which has high strength and rigidity, is lightweight, and has excellent corrosion resistance. Of course, the sway reduction plates 121 may also be made of other suitable materials, such as steel, which will not be described in detail here.

[0044] The anti-sway plate 121 is provided with a plurality of first spoiler holes 122. The first spoiler holes 122 penetrate the anti-sway plate 121 along the thickness direction of the anti-sway plate 121. Figure 6As shown, the first spoiler holes 122 of two adjacent anti-sway plates 121 are staggered in the vertical direction, that is, the vertical projections of the first spoiler holes 122 of the two adjacent anti-sway plates 121 do not overlap, and the topmost anti-sway plate 121 is connected to the annular float 110. For example, the outer peripheral wall of the topmost anti-sway plate 121 may be connected to the bottom end of the inner peripheral wall of the annular float 110, or the edge of the upper surface of the topmost anti-sway plate 121 may be connected to the bottom surface of the annular float 110, and the upper surface of the anti-sway plate 121 and the inner peripheral wall of the annular float 110 enclose a receiving groove 123, and the first spoiler holes 122 of the topmost anti-sway plate 121 are in communication with the receiving groove 123.

[0045] In the present application, the floating unit 100 includes at least two sway reduction plates 121 arranged vertically. Compared with a single sway reduction plate 121, the damping applied to the seawater is greater, and each sway reduction plate 121 is provided with a first spoiler hole 122. The first spoiler holes 122 of two adjacent sway reduction plates 121 are staggered in the vertical direction. In this way, when the seawater causes vertical swing to the wind turbine foundation, part of the seawater will flow through the first spoiler holes 122 of multiple sway reduction plates 121 in turn, thereby changing the flow direction of the seawater, causing the seawater to flow in multiple directions instead of flowing completely vertically. It will also increase the flow path, effectively disturb the vertical flow of the seawater, apply greater additional damping to the vertical swing motion of the wind turbine foundation, and reduce the amplitude and frequency of the vertical swing motion of the wind turbine foundation.

[0046] In addition, the uppermost anti-sway plate 121 is connected to the annular float 110, and is enclosed with the inner peripheral wall of the annular float 110 to form a receiving groove 123. When the annular float 110 partially sinks into the sea, seawater will enter the receiving groove 123 through the first spoiler hole 122. When the wind turbine foundation shakes and swings vertically, the seawater in the receiving groove 123 cannot flow out of the first spoiler hole 122 quickly, and the seawater in the receiving groove 123 can also play a certain ballast role, reducing the shaking and heaving amplitude of the wind turbine foundation. In addition, when the wind turbine foundation swings upward, the seawater in the receiving groove 123 will flow out of the first spoiler hole 122 in the opposite direction, and can apply a certain damping, further reducing the heaving amplitude of the wind turbine foundation, thereby further improving the stability of the wind turbine foundation and having a better anti-overturning effect.

[0047] refer to Figure 4 and Figure 5As shown, in some embodiments of the present invention, a plurality of ribs 124 are provided between two adjacent anti-sway plates 121. The ribs 124 are provided with a plurality of second spoiler holes 125. The second spoiler holes 125 penetrate the ribs 124 along the thickness direction of the ribs 124. For example, the plate surface of the ribs 124 can be arranged vertically, that is, the thickness direction of the ribs 124 is horizontal. The ribs 124 can be made of glass fiber reinforced plastics, that is, FRP material. Of course, the ribs 124 can also be made of other suitable materials, such as steel, which will not be described in detail here.

[0048] In this embodiment, a plurality of ribs 124 are provided between two adjacent anti-sway plates 121. This not only improves the structural strength of the anti-sway plate assembly 120, increases the rigidity and overall stability of the anti-sway plate assembly 120, but also applies additional damping to the lateral and longitudinal flows of seawater. At the same time, the ribs 124 are provided with a plurality of second spoiler holes 125, thereby changing the lateral and longitudinal flow modes of seawater, causing the seawater to flow in multiple directions rather than flowing entirely in the lateral and longitudinal directions. The flow path is also increased, thereby effectively disturbing the lateral and longitudinal flows of seawater, applying greater additional damping to the roll and pitch motions of the wind turbine foundation, reducing the amplitude and motion frequency of the wind turbine foundation during roll and pitch motion, and comprehensively improving the stability of the wind turbine foundation.

[0049] refer to Figure 4 As shown, in some embodiments of the present invention, the plurality of ribs 124 are divided into two groups. The ribs 124 in the same group are parallel to each other, and the ribs 124 in different groups are cross-connected. The thickness directions of the ribs 124 in different groups can be perpendicular to each other. The ribs 124 in the same group can include two, three, four, or other suitable numbers of ribs 124. For example, the same group can include two ribs 124.

[0050] In this embodiment, such a configuration can not only further improve the structural strength of the anti-sway plate assembly 120, further increase the rigidity and overall stability of the anti-sway plate assembly 120, but also further disturb the lateral and longitudinal flow of seawater, apply greater additional damping to the roll and pitch motions of the wind turbine foundation, and further reduce the amplitude and frequency of the roll and pitch motions of the wind turbine foundation.

[0051] In some embodiments of the present invention, the second spoiler holes 125 of two adjacent ribs 124 in the same group of ribs 124 are staggered along the thickness direction of the group of ribs 124. In this embodiment, this arrangement provides a better spoiler effect on the lateral and longitudinal flow of seawater, which causes roll and pitch on the wind turbine foundation, further reducing the roll and pitch amplitudes and improving stability.

[0052] refer to Figure 2As shown, in some embodiments of the present invention, the annular float 110 includes an annular outer tube 111, an annular inner tube 112 and a first concrete layer 113. The annular inner tube 112 is arranged in the annular outer tube 111 and extends along the length direction of the annular outer tube 111. The first concrete layer 113 is filled between the annular outer tube 111 and the annular inner tube 112.

[0053] In this embodiment, the annular buoy 110 adopts a composite structure combining an annular outer tube 111, a first concrete layer 113 and an annular inner tube 112. The annular outer tube 111 and the annular inner tube 112 can effectively restrain and protect the first concrete layer 113, reducing the loosening and corrosion of the first concrete layer 113. Moreover, the annular outer tube 111 and the annular inner tube 112 are supported by the first concrete layer 113, and can reduce deformation and fracture when impacted by seawater. In addition, the annular inner tube 112 is covered by the first concrete layer 113 and will not be exposed to the outside, so it has higher fatigue strength and longer fatigue life. Therefore, the annular buoy 110 of the present application has excellent strength, rigidity and service life, and compared with the use of all steel structures, it uses less steel and has lower costs.

[0054] It should be noted that both the annular outer tube 111 and the annular inner tube 112 can be made of fiberglass reinforced plastics (FRP), which has high strength and rigidity, is lightweight, and has good corrosion resistance. Furthermore, the fibers of the FRP can more effectively constrain the first concrete layer 113. Of course, the annular outer tube 111 and the annular inner tube 112 can also be made of other materials, such as steel.

[0055] refer to Figure 2 As shown, in some embodiments of the present invention, a plurality of annular reinforcement tubes 114 are arranged side by side at the bottom end of the first concrete layer 113, and the annular reinforcement tubes 114 extend along the length direction of the annular outer tube 111, and / or a plurality of spiral ribs 115 are arranged side by side at the top end of the first concrete layer 113, and the spiral ribs 115 extend along the length direction of the annular outer tube 111.

[0056] For example, the annular buoy 110 can have a rectangular cross-section along its length. Multiple annular reinforcement tubes 114 can be arranged from the inside to the outside of the annular buoy 110. These tubes can be steel or fiberglass reinforced plastic. Multiple spiral ribs 115 can be arranged from the inside to the outside of the annular buoy 110. These ribs 115 can be connected end-to-end and extend along the length of the annular outer tube 111. These ribs 115 have a spiral shape along their length and can be made of steel or fiberglass reinforced plastic. The number and spacing of the annular reinforcement tubes 114, as well as the number and spacing of the spiral ribs 115, can be designed and determined based on the load conditions.

[0057] During operation, the annular buoy 110 is subjected to pressure from the columns 200, tower 400, and wind turbine 500, as well as the buoyancy of seawater, potentially bending downward. This compresses the top end of the annular buoy 110 and stretches the bottom end. In this embodiment, multiple spiral ribs 115 are arranged side by side at the top end of the first concrete layer 113. These ribs further constrain the top end of the first concrete layer 113, improving its resistance to deformation and fracture. Multiple annular reinforcement tubes 114 are arranged side by side at the bottom end of the first concrete layer 113. These tubes exhibit excellent ductility, effectively distributing the tensile forces acting on the bottom end of the first concrete layer 113 and improving the ductility of the bottom end of the annular buoy 110. Furthermore, these tubes form a cavity within the first concrete layer 113, further reducing the weight of the annular buoy 110.

[0058] refer to Figure 1 、 Figure 3 and Figure 7 As shown, in some embodiments of the present invention, the floating wind turbine foundation further includes a column 200, which is connected to the annular buoy 110 for mounting a tower 400. The column 200 includes a vertical outer tube 210, a vertical inner tube 220, and a second concrete layer 230. The vertical outer tube 210 is disposed within the vertical outer tube 210, and the second concrete layer 230 is filled between the vertical outer tube 210 and the vertical inner tube 220. For example, the top of the column 200 is used to mount the tower 400, and the wind turbine 500 is mounted on the top of the tower 400. The vertical outer tube 210 and the vertical inner tube 220 both extend vertically.

[0059] In this embodiment, the column 200 adopts a composite structure that combines a vertical outer tube 210, a second concrete layer 230 and a vertical inner tube 220 arranged in sequence from the outside to the inside. The vertical outer tube 210 and the vertical inner tube 220 can effectively restrain and protect the second concrete layer 230, reduce the loosening and corrosion of the second concrete layer 230, and the vertical outer tube 210 and the vertical inner tube 220 are supported by the second concrete layer 230, which can reduce deformation and fracture when impacted by the sea breeze. In addition, the vertical inner tube 220 is covered by the second concrete layer 230 and will not be exposed to the outside, so it has higher fatigue strength and longer fatigue life. Therefore, the column 200 of the present application has excellent strength, rigidity and service life.

[0060] It should be noted that both the vertical outer tube 210 and the vertical inner tube 220 can be made of fiberglass reinforced plastics (FRP), which has high strength and rigidity, is lightweight, and has good corrosion resistance. Furthermore, the fibers of the FRP can more effectively constrain the second concrete layer 230. Of course, the vertical outer tube 210 and the vertical inner tube 220 can also be made of other suitable materials, such as steel.

[0061] refer to Figure 2 As shown, in some embodiments of the present invention, the annular inner tube 112 contains ballast water 116 , and the vertical inner tube 220 is in communication with the annular inner tube 112 .

[0062] In this embodiment, the annular inner tube 112 contains ballast water 116, which acts as a ballast, further reducing heave and shaking of the wind turbine foundation and improving its stability. Furthermore, the vertical inner tube 220 is connected to the annular inner tube 112 and can be connected to the outside. When the wind turbine foundation shakes, the ballast water 116 can flow, enabling dynamic adjustment of the position of the ballast water 116, thereby achieving a better ballast and stability effect. Furthermore, the ballast water 116 can be replenished into the annular inner tube 112 through the vertical inner tube 220, making it more convenient to use.

[0063] refer to Figure 1 and Figure 7 As shown, in some embodiments of the present invention, a cable 300 is provided between the vertical outer tube 210 and the annular outer tube 111. For example, the cable 300 can be made of fiberglass or steel wire rope. One end of the cable 300 can be connected to the upper end of the vertical outer tube 210, and the other end can be connected to the side of the annular outer tube 111 away from the vertical outer tube 210. When there is only one floating unit 100, two or more cables 300 can be connected to the annular outer tube 111. When there are multiple floating units 100, only one cable 300 can be provided for each floating unit 100, and the cables 300 can be located on the side of two adjacent floating units 100 that are close to each other.

[0064] In this embodiment, the provision of the cables 300 can improve the overall structural strength of the wind power foundation and reduce the bending and breaking of the columns 200 .

[0065] refer to Figure 3 As shown, in some embodiments of the present invention, a plurality of vertical reinforcement tubes 240 are provided in the second concrete layer 230, and the plurality of vertical reinforcement tubes 240 are arranged along the circumference of the vertical outer tube 210. For example, the vertical reinforcement tubes 240 can be steel tubes or fiberglass reinforced plastics, and the vertical reinforcement tubes 240 can extend vertically.

[0066] In this embodiment, a plurality of vertical reinforcement tubes 240 are provided in the second concrete layer 230. This not only further improves the structural strength of the column 200 and reduces the bending or breaking of the column 200, but also forms a cavity in the second concrete layer 230 to reduce the deadweight of the column 200.

[0067] refer to Figure 7 and Figure 8As shown, in some embodiments of the present invention, the floating unit 100 includes a plurality of annular floating bodies 110, and the annular floating bodies 110 of the plurality of floating units 100 are arranged in a circle, wherein two adjacent annular floating bodies 110 are fitted and detachably connected. Figure 7 and Figure 8 As shown, there can be six floating units 100, which are arranged in a circle. The outer wall of the annular floating body 110 can be roughly equilateral triangle in vertical projection, and two adjacent floating units 100 are close together. Figure 1 As shown, docking plates 118 can be provided on both sides of the floating unit 100. The docking plates 118 can be made of fiberglass or other suitable materials. The docking plates 118 can be provided with connecting holes. The docking plates 118 of two adjacent floating units 100 are fitted together, and fastening bolts are installed in the corresponding connecting holes.

[0068] In this embodiment, such a configuration provides a better anti-heave and anti-sway effect for the wind turbine base, and provides better stability, making it suitable for wind turbines 500 with greater power and weight. In addition, the two adjacent annular floats 110 are detachably connected, making assembly and transportation more convenient.

[0069] It should be noted that if Figure 9 As shown, in other embodiments of the present invention, when there are fewer floating units 100, such as three, two adjacent annular floating units 110 may be spaced apart. In this way, the two adjacent annular floating units 110 can be detachably connected via a connecting portion 117. For example, the connecting portion 117 and the annular floating units 110 may be connected by fasteners or snap-fitted. This improves the overall structural strength and stability of the wind turbine foundation, and also facilitates assembly and transportation.

[0070] The floating unit 100 of the present application can be used alone or in combination, has extremely high flexibility, facilitates standardized production and customized design, and reduces production costs.

[0071] A wind power device according to a second embodiment of the present invention includes the floating wind power foundation according to the first embodiment.

[0072] For example, the wind power equipment may further include a wind turbine generator set 500 and a tower 400 . The tower 400 is installed on a floating wind power foundation, and the wind turbine generator set 500 is installed on the top of the tower 400 .

[0073] According to the wind power equipment of the embodiment of the present invention, by adopting the floating wind power foundation of the embodiment of the first aspect of the present invention, the shaking and heaving amplitude of the wind power foundation can be effectively reduced, the stability of the wind power foundation can be improved, and the anti-overturning effect can be better.

[0074] It should be noted that, since the wind power equipment can adopt all the technical solutions of the floating wind power foundation of the first embodiment above, it at least has all the beneficial effects brought by the technical solutions of the first embodiment above. These additional beneficial effects will not be repeated here.

[0075] It is understandable that other structures and operations of the wind power equipment according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0076] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A floating wind power foundation, characterized in that: The invention comprises at least one floating unit, wherein the floating unit comprises: annular floating body; A sway reduction plate assembly, comprising at least two sway reduction plates arranged vertically, the sway reduction plates being provided with a plurality of first spoiler holes, the first spoiler holes penetrating the sway reduction plates along a thickness direction of the sway reduction plates, the first spoiler holes of two adjacent sway reduction plates being vertically staggered, the top sway reduction plate being connected to the annular floating body, and the upper surface of the top sway reduction plate and the inner peripheral wall of the annular floating body forming a receiving groove; A plurality of ribs are provided between two adjacent anti-sway plates, and the ribs are provided with a plurality of second spoiler holes, and the second spoiler holes penetrate the ribs along the thickness direction of the ribs; The multiple ribs are divided into two groups. The ribs in the same group are parallel to each other. In the ribs in the same group, the second spoiler holes of two adjacent ribs are staggered along the thickness direction of the ribs. The ribs in different groups are cross-connected.

2. The floating wind power foundation according to claim 1, characterized in that: The annular floating body comprises: annular outer tube; an annular inner tube, disposed inside the annular outer tube and extending along the length direction of the annular outer tube; The first concrete layer is filled between the annular outer tube and the annular inner tube.

3. The floating wind power foundation according to claim 2, characterized in that: A plurality of annular reinforcement tubes are arranged side by side at the bottom end of the first concrete layer, and the annular reinforcement tubes extend along the length direction of the annular outer tube, and / or a plurality of spiral ribs are arranged side by side at the top end of the first concrete layer, and the spiral ribs extend along the length direction of the annular outer tube.

4. The floating wind power foundation according to claim 2, characterized in that: The floating wind turbine foundation further includes a column connected to the annular floating body for installing a tower, and the column includes: vertical outer tube; a vertical inner tube, disposed inside the vertical outer tube; The second concrete layer is filled between the vertical outer tube and the vertical inner tube.

5. The floating wind power foundation according to claim 4, characterized in that: The annular inner tube contains ballast water, and the vertical inner tube is communicated with the annular inner tube.

6. The floating wind power foundation according to claim 4, characterized in that: A cable is provided between the vertical outer tube and the annular outer tube; and / or, A plurality of vertical reinforcement tubes are provided in the second concrete layer, and the plurality of vertical reinforcement tubes are arranged along the circumference of the vertical outer tube.

7. The floating wind power foundation according to claim 1, characterized in that: The floating body units include a plurality of floating body units, and the annular floating bodies of the plurality of floating body units are arranged in a circumferential manner; Wherein, the two adjacent annular floating bodies are fitted together and detachably connected; or, the floating body unit further includes a connecting portion, and the two adjacent annular floating bodies are spaced apart and detachably connected via the connecting portion.

8. A wind power equipment, characterized in that: The floating wind power foundation comprises the floating wind power foundation according to any one of claims 1 to 7.

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