Semi-submersible floating fan platform and wind power generation equipment

Abstract

The invention relates to a semi-submersible type floating fan platform and wind power generation equipment. The semi-submersible type floating fan platform comprises a central stand column, a floating platform and a wind power generation device, the central heaving box is arranged at the bottom of the central upright post; the at least three side stand columns are arranged on the periphery of the center stand column in a surrounding mode, and all the side stand columns are connected with the center stand column and the center heaving box through supporting assemblies; the side heaving box is arranged at the bottom of the side stand column; at least one side heaving box is correspondingly arranged on any side stand column, and at least part of each side heaving box is arranged on the outer side of the bottom of the corresponding side stand column in a surrounding mode. The wind power generation equipment comprises the semi-submersible floating fan platform. According to the semi-submersible floating fan platform and the wind power generation equipment, loads from all directions can be dispersed and resisted more effectively, the overall stability and bearing capacity of the platform can be improved, required buoyancy is provided for supporting a fan tower barrel, the heaving damping of the platform can be increased, and the service life of the platform is prolonged. And the overall stability and the bearing capacity of the platform are further enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of offshore wind power generation, in particular to a semi-submersible floating wind turbine platform and a wind power generation equipment. BACKGROUND

[0002] With the development of wind power generation technology, offshore wind power technology is an important part of the field of renewable energy. Among them, the semi-submersible floating wind power platform is a technical solution suitable for deep water areas. It supports the wind power equipment group through multiple pontoons or columns, so that it can remain stable on the water surface, thereby allowing the wind power equipment to be installed in sea areas with water depth exceeding the applicable depth of fixed foundations.

[0003] The common form of the semi-submersible floating wind power platform is three columns and four columns. The three-column platform structure is relatively simple, but the stability and restoring moment are limited, and large roll and yaw responses are easily generated when supporting large-capacity wind turbines. At present, the four-column form is mostly used, but the stability and hydrodynamic performance of the existing semi-submersible floating wind power platform of the four-column form are poor, which cannot well meet the use requirements of severe sea conditions and high-power wind turbines. SUMMARY

[0004] Therefore, it is necessary to provide a semi-submersible floating wind turbine platform and a wind power generation equipment in view of the poor stability and hydrodynamic performance of the semi-submersible floating wind power platform of the four-column form.

[0005] A semi-submersible floating wind turbine platform comprises: a center column; a center heave tank arranged at the bottom of the center column; at least three edge columns arranged around the periphery of the center column, and each edge column is connected to the center column and the center heave tank through a support assembly; an edge heave tank arranged at the bottom of the edge column; wherein at least one edge heave tank is arranged corresponding to any edge column, and the edge heave tank is at least partially arranged outside the bottom of the edge column.

[0006] The semi-submersible floating wind turbine platform described above has the edge columns arranged around the periphery of the center column, and each edge column is connected to the center column through the support assembly, that is, the center column, the edge column and the support assembly form a star-shaped structure of at least four columns, which can more effectively disperse and resist the load from all directions, and is beneficial to improve the stability and carrying capacity of the whole platform; the center heave tank is arranged at the bottom of the center column, and the edge heave tank is arranged at the bottom of the edge column, which not only provides the required buoyancy for supporting the wind turbine tower, but also increases the heave damping of the platform, which is beneficial to optimize the hydrodynamic performance of the platform, and further enhances the stability and carrying capacity of the whole platform.

[0007] In some embodiments, the support assembly comprises a first support beam, and the bottom of each edge column is connected to the center heave tank through the first support beam.

[0008] In some embodiments, the side-swaying box is at least partially connected to the outside of the bottom of the side column, and another part of the side-swaying box is connected to the first support beam.

[0009] In some embodiments, each of the side columns comprises a first surface, a second surface, a third surface, and a fourth surface connected in sequence and not coplanar, the fourth surface being oppositely arranged to the first surface; the first support beam is connected to the fourth surface, and each of the side-swaying boxes is at least partially connected to the second surface and the third surface.

[0010] In some embodiments, each of the side-swaying boxes comprises a first side, a second side, a third side, and a fourth side connected in sequence and not coplanar, the first side, the second side, the third side, and the fourth side are all configured as planar structures; the first side is arranged flush with the first surface, the second side is arranged parallel to the second surface, the third side is arranged parallel to the third surface, and the fourth side is connected to the first support beam.

[0011] In some embodiments, the first support beam is configured as an equal cross-section prism structure; the fourth side is connected to the position of the first support beam where the reinforcing rib is arranged.

[0012] In some embodiments, the width of the side-swaying box is defined as the vertical distance from the second side to the second surface, the width of the side-swaying box ranges from 4m to 6m, and the height of the side-swaying box ranges from 2m to 4m.

[0013] In some embodiments, each of the side columns is configured as a regular hexagonal prism structure, at least two of the side-swaying boxes are arranged on each of the side columns, and all of the side-swaying boxes are distributed on both sides of the side columns along the central axis of the first support beam.

[0014] In some embodiments, the support assembly further comprises a second support beam, the top of each of the side columns is connected to the top of the central column through the second support beam.

[0015] In some embodiments, the second support beam comprises a first branch, a second branch, and a third branch connected in sequence, the first branch and the third branch are respectively arranged at both ends of the second branch, the first branch is connected to the top of the side column, and the third branch is connected to the top of the central column; the second branch is configured as an equal cross-section prism structure, and the first branch and the third branch are both configured as variable cross-section prism structures.

[0016] In some embodiments, the second support beam further comprises a reinforcing plate, which is arranged below the third branch and connected with the central column.

[0017] In some embodiments, the central heave tank is provided with a slot, the bottom end of the central column is inserted into the slot, and the central axis of the slot is arranged to coincide with the central axis of the central column.

[0018] In some embodiments, the slot is configured as a circular groove, and the central column is configured as a cylindrical structure; and / or, the central heave tank is configured as a triangular prism structure.

[0019] A wind power generation device comprising the semi-submersible floating wind turbine platform described above.

[0020] The wind power generation device described above, the peripheral columns are arranged around the outer periphery of the central column, and the peripheral columns are connected with the central column through the support assembly, that is, the central column, the peripheral columns and the support assembly form a star-shaped structure of at least four columns, which can more effectively disperse and resist the load from all directions, and is beneficial to improve the stability and carrying capacity of the platform as a whole; the central heave tank is arranged at the bottom of the central column, and the peripheral heave tank is arranged at the bottom of the peripheral column, which not only provides the required buoyancy for supporting the wind turbine tower, but also increases the heave damping of the platform, which is beneficial to optimize the hydrodynamic performance of the platform, and further enhances the stability and carrying capacity of the platform as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A schematic view of the semi-submersible floating wind turbine platform in some embodiments of the present application.

[0022] Figure 2 A schematic view of the semi-submersible floating wind turbine platform in some embodiments of the present application. Figure 1 A schematic view of the semi-submersible floating wind turbine platform in some embodiments of the present application.

[0023] REFERENCE SIGNS:

[0024] 100, central column;

[0025] 200, central heave tank; 201, slot;

[0026] 300, peripheral column; 301, first surface; 302, second surface; 303, third surface; 304, fourth surface;

[0027] 400, peripheral heave tank; 401, first side; 402, second side; 403, third side; 404, fourth side;

[0028] 500, support assembly; 510, first support beam; 520, second support beam; 521, first branch; 522, second branch; 523, third branch; 524, reinforcing plate. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more clear and easily understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways without the specific details, and it is understood that similar improvements in addition to those disclosed herein will occur to the skilled person to which the present application pertains. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "initial", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Please refer to Figure 1 and Figure 2 In one embodiment, the semi-submersible floating wind turbine platform includes a central column 100, a central heave box 200, at least three side columns 300, and side heave boxes 400. The central heave box 200 is located at the bottom of the central column 100, and each side column 300 is arranged around the outer periphery of the central column 100. Each side column 300 is connected to the central column 100 and the central heave box 200 through a support assembly 500. The side heave boxes 400 are located at the bottom of the side columns 300. Each side column 300 is provided with at least one side heave box 400, and the side heave box 400 is at least partially arranged around the bottom outer side of the side column 300.

[0036] It should be noted that the aforementioned semi-submersible floating wind turbine platform is used for offshore wind power generation equipment and serves as the load-bearing foundation for the wind turbine tower. The wind turbine tower is mounted on the top wall of the central column 100 via a flange structure. The central column 100 provides buoyancy support for the wind turbine tower. The central heave box 200 supplements the buoyancy required by the central column 100 to support the wind turbine tower. The side columns 300 provide buoyancy and bear the load. The side heave boxes 400 suppress the vertical movement of the platform (i.e., increase the platform's heave damping) and improve the platform's hydrodynamic performance.

[0037] Optionally, neither the central column 100 nor the central heave box 200 is equipped with a ballast tank, while the side columns 300 are equipped with a ballast tank for adjusting the platform's draft, and the side heave boxes 400 are equipped with permanent ballast (through openings that connect to the outside) for increasing the drainage capacity.

[0038] The aforementioned semi-submersible floating wind turbine platform has side columns 300 surrounding the central column 100, and each side column 300 is connected to the central column 100 through a support component 500. That is, the central column 100, side columns 300, and support component 500 form a star-shaped structure of at least four columns, which can more effectively distribute and resist loads from all directions, thus improving the overall stability and load-bearing capacity of the platform. The central heave box 200 is located at the bottom of the central column 100, and the side heave boxes 400 are located at the bottom of the side columns 300. This not only provides the necessary buoyancy to support the wind turbine tower, but also increases the platform's heave damping, which helps to optimize the platform's hydrodynamic performance and further enhances the overall stability and load-bearing capacity of the platform.

[0039] In the embodiments of this application, the central heave box 200 is disposed at the bottom of the central column 100, and the bottom of the central column 100 is also the portion extending upward from the bottom wall of the central column 100. The central heave box 200 and the central column 100 can be connected in various ways, for example, by insertion, riveting, or welding. The central heave box 200 and the central column 100 can have various structural forms, for example, the central heave box 200 is a box-shaped structure with a hollow cavity, and the central column 100 is a columnar structure, including cylinders, prisms, or other shapes.

[0040] In the embodiments of this application, each side column 300 is connected to the central column 100 and the central heave box 200 via a support assembly 500. That is, the side columns 300 are not directly connected to the central column 100 and the central heave box 200, but are connected via the support assembly 500. The support assembly 500 can adopt various structural forms. For example, one support member connects one side column 300 to the central column 100, and another support member connects the side column 300 to the central heave box 200. Both support members can be plate-shaped structures.

[0041] In the embodiments of this application, each side column 300 is provided with at least one side heave box 400, and the side heave box 400 is at least partially surrounding the bottom outer side of the side column 300. That is, each side column 300 is provided with one side heave box 400 or at least two side heave boxes 400. Each side heave box 400 and the side column 300 can be connected by means of plugging, riveting or welding. The side heave box 400 and the side column 300 can have various structural forms. For example, the side heave box 400 is a box-shaped structure with a hollow cavity, and the side column 300 is a columnar structure, including cylinders, prisms or other shapes.

[0042] For details, please refer to Figure 1The support assembly 500 includes a first support beam 510, and the bottom of each side column 300 is connected to the central heave box 200 through the first support beam 510.

[0043] It should be noted that the bottom of the side post 300 is also the part extending upward from the bottom wall of the side post 300.

[0044] The beneficial effect here is that by connecting the bottom of each side column 300 and the central heave box 200 through the first support beam 510, the structural stability and anti-overturning ability of the platform can be further enhanced, thereby improving the operational safety and reliability of the wind power equipment on the platform.

[0045] In the embodiments of this application, the bottom of each side column 300 is connected to the central heave box 200 via a first support beam 510. That is, both ends of the first support beam 510 are connected to the bottom of the side column 300 and the central heave box 200, respectively. The first support beam 510 can be connected to the bottom of the side column 300 and the central heave box 200 in various ways. For example, one end of the first support beam 510 can be fixed to the bottom of the side column 300 by welding, riveting, or other methods, and the other end of the first support beam 510 can be fixed to the central heave box 200 by welding, riveting, or other methods.

[0046] In the embodiments of this application, the first support beam 510 may be equipped with a ballast tank or a permanent ballast (through openings that communicate with the outside), and can be flexibly selected according to the actual situation. The first support beam 510 may have various structural forms; for example, the first support beam 510 may be constructed as a quadrangular prism structure to facilitate the subsequent transportation of the entire platform to the outside.

[0047] In the embodiments of this application, the number of first support beams 510 is not limited to one. That is, the bottom of each side column 300 can be connected to the central heave box 200 by at least two first support beams 510. All the first support beams 510 between any side column 300 and the central heave box 200 can be arranged side by side or stacked along the height direction.

[0048] Please refer to Figure 1 The side sway box 400 is at least partially connected to the bottom outer side of the side column 300, and another part of the side sway box 400 is connected to the first support beam 510.

[0049] The beneficial effect here is that by having the side heave box 400 at least partially enclosed on the bottom outer side of the side column 300, and the other part connected to the first support beam 510, the connection stability of the side heave box 400 is improved, which is conducive to improving the overall stability and load-bearing capacity of the platform.

[0050] In the embodiments of this application, the side heave box 400 is at least partially connected to the bottom outer side of the side column 300, and the other part of the side heave box 400 is connected to the first support beam 510. That is, the side heave box 400 spans across the bottom outer side of the side column 300 and the first support beam 510, so that the side heave box 400, the side column 300, and the first support beam 510 are stably connected. The side heave box 400, the side column 300, and the first support beam 510 can all be connected in various ways, such as by plugging, riveting, or welding.

[0051] In the embodiments of this application, the side sway box 400 can take various structural forms. For example, the first support beam 510 is constructed as a heptagonal prism to facilitate the subsequent transportation of the entire platform to the factory and its docking at the pier. The number of side sway boxes 400 is not limited to one; that is, at least two side sway boxes 400 can be provided.

[0052] For details, please refer to Figure 2 Each side column 300 includes a first surface 301, a second surface 302, a third surface 303, and a fourth surface 304 that are sequentially connected and not coplanar. The fourth surface 304 is disposed opposite to the first surface 301. The first support beam 510 is connected to the fourth surface 304, and each side sway box 400 is at least partially connected to the second surface 302 and the third surface 303.

[0053] It is understandable that the fourth surface 304 is disposed opposite to the first surface 301, and the second surface 302 and the third surface 303 are located between the first surface 301 and the fourth surface 304.

[0054] The beneficial effects here are: the first support beam 510 is connected to the fourth surface 304, and each side heave box 400 is at least partially connected to the second surface 302 and the third surface 303, which improves the connection stability of the side heave boxes 400 and helps to improve the overall stability and load-bearing capacity of the platform.

[0055] In the embodiments of this application, the first support beam 510 is connected to the fourth surface 304, that is, one end of the first support beam 510 is connected to the fourth surface 304, and the other end of the first support beam 510 is away from the fourth surface 304. The first support beam 510 and the fourth surface 304 are in close contact to better fix the connection between the first support beam 510 and the fourth surface 304.

[0056] In the embodiments of this application, each side swing box 400 is at least partially connected to the second surface 302 and the third surface 303, and the side swing box 400 is in contact with the second surface 302 and the third surface 303 so as to better fix the side swing box 400 to the second surface 302 and the third surface 303.

[0057] For more specific details, please refer to Figure 2 Each side of the sway box 400 includes a first side 401, a second side 402, a third side 403, and a fourth side 404 that are connected in sequence and are not coplanar. The first side 401, the second side 402, the third side 403, and the fourth side 404 are all constructed as planar structures. The first side 401 is flush with the first surface 301, the second side 402 is parallel to the second surface 302, the third side 403 is parallel to the third surface 303, and the fourth side 404 is connected to the first support beam 510.

[0058] The beneficial effect here is that the side heave box 400 is at least partially surrounded on the bottom outside of the side column 300, and the other part is connected to the first support beam 510, which improves the connection stability of the side heave box 400.

[0059] In the embodiments of this application, the first side 401, the second side 402, the third side 403, and the fourth side 404 are all constructed as planar structures. Since the first side 401 is flush with the first surface 301, the second side 402 is parallel to the second surface 302, and the third side 403 is parallel to the third surface 303, the first surface 301, the second surface 302, the third surface 303, and the fourth surface 304 are all constructed as planar structures to facilitate the subsequent transportation of the entire platform to the factory and the docking of the dock.

[0060] In the embodiments of this application, the fourth side 404 is connected to the first support beam 510, and the included angle between the two is equal to or greater than 90 degrees, which helps to enhance the connection stability and structural strength of the two.

[0061] For a specific embodiment, please refer to Figure 1 The first support beam 510 is constructed as a prism with a uniform cross section; the first support beam 510 is provided with reinforcing ribs inside, and the fourth side 404 is connected to the position where the first support beam 510 is provided with reinforcing ribs.

[0062] The beneficial effect here is that the fourth side 404 is connected to the first support beam 510 at the position where the reinforcing ribs are arranged, which can reduce the probability of deformation at the connection between the fourth side 404 and the first support beam 510, and help to strengthen the overall structural strength of the platform.

[0063] In the embodiments of this application, the first support beam 510 is provided with reinforcing ribs. The number of reinforcing ribs is not limited to one. When the number of reinforcing ribs is at least two, the reinforcing ribs can be arranged in various ways, such as side by side or in a crisscross pattern.

[0064] In the embodiments of this application, the first support beam 510 is constructed as a prism structure with a uniform cross-section, preferably, the first support beam 510 is a quadrangular prism structure.

[0065] Please refer to Figure 2 The width of the side swing box 400 is defined as the vertical distance from the second side 402 to the second surface 302. The width of the side swing box 400 ranges from 4m to 6m, and the height of the side swing box 400 ranges from 2m to 4m.

[0066] It should be noted that the vertical distance from the second side 402 to the second surface 302 is equal to the vertical distance from the third side 403 to the third surface 303.

[0067] The beneficial effect here is that by limiting the width and height range of the side swing box 400, the side swing box 400 will not occupy too much space, making the overall structure of the platform compact.

[0068] In the embodiments of this application, the width of the side-suspension box 400 can be 4m, 5m or 6m.

[0069] In the embodiments of this application, the height of the side-suspension box 400 can be 2m, 3m or 4m.

[0070] Here, under specific sea conditions, the influence of side-heavy boxes 400 with different widths and heights (as shown in Table 1 below, examples 1-4 were designed) on the stability of the platform is calculated, thus obtaining that the optimal width range of the side-heavy boxes 400 is 4m~6m and the optimal height range is 2m~4m.

[0071] Table 1

[0072]

[0073] Further, please refer to Figure 1 Each side column 300 is constructed as a regular hexagonal prism, and each side column 300 is provided with at least two side swing boxes 400, and all the side swing boxes 400 are symmetrically distributed on both sides of the side column 300 along the central axis of the first support beam 510.

[0074] The beneficial effects here are: each side column 300 is constructed with a regular hexagonal prism structure, which facilitates the subsequent transportation of the entire platform to the site and the operation of docking at the wharf; all the side sway boxes 400 are symmetrically distributed on both sides of the side column 300 along the central axis of the first support beam 510, which enhances the overall stability and hydrodynamic performance of the platform.

[0075] In the embodiments of this application, each side column 300 is constructed as a regular hexagonal prism structure, and all side columns 300 are exactly the same size to ensure the stability of the entire platform structure.

[0076] In the embodiments of this application, all the side heave boxes 400 are symmetrically distributed on both sides of the side column 300 along the central axis of the first support beam 510. All the side heave boxes 400 are exactly the same size to ensure the stability of the entire platform structure. For example, one side heave box 400 is symmetrically distributed on each side of the side column 300, and both side heave boxes 400 are heptagonal prism structures.

[0077] Please refer to Figure 1 The support assembly 500 also includes a second support beam 520, and the top of each side column 300 is connected to the top of the central column 100 through the second support beam 520.

[0078] It should be noted that the top of the side column 300 is also the portion extending downward from the top wall of the side column 300. The top of the center column 100 is also the portion extending downward from the top wall of the center column 100.

[0079] The beneficial effect here is that by connecting the top of each side column 300 and the top of the central column 100 through the second support beam 520, the structural stability and anti-overturning ability of the platform can be further enhanced, thereby improving the operational safety and stability of the wind power equipment on the platform.

[0080] In the embodiments of this application, the top of each side column 300 is connected to the top of the central column 100 via a second support beam 520. That is, both ends of the second support beam 520 are connected to the top of the side column 300 and the top of the central column 100, respectively. The second support beam 520 can be connected to the top of the side column 300 and the top of the central column 100 in various ways. For example, one end of the second support beam 520 can be fixed to the top of the side column 300 by welding, riveting, or other methods, and the other end of the second support beam 520 can be fixed to the top of the central column 100 by welding, riveting, or other methods.

[0081] In the embodiments of this application, the second support beam 520 does not have a ballast tank, but holes can be made in the second support beam 520 to prevent wave impact. The second support beam 520 can have various structural forms; for example, the second support beam 520 can be constructed as a quadrangular prism structure.

[0082] In the embodiments of this application, the number of second support beams 520 is not limited to one. That is, the top of each side column 300 can be connected to the top of the central column 100 by at least two second support beams 520. All the first support beams 510 between the top of any side column 300 and the top of the central column 100 can be arranged side by side or stacked along the height direction.

[0083] For details, please refer to Figure 1 andFigure 2 The second support beam 520 includes a first branch 521, a second branch 522, and a third branch 523 connected in sequence. The first branch 521 and the third branch 523 are respectively located at both ends of the second branch 522. The first branch 521 is connected to the top of the side column 300, and the third branch 523 is connected to the top of the central column 100. The second branch 522 is constructed as a prism with a constant cross-section, while the first branch 521 and the third branch 523 are both constructed as prisms with a variable cross-section.

[0084] The beneficial effects here are: the first branch 521, the second branch 522 and the third branch 523 are connected in sequence to form a continuous load-bearing structure, which makes the second support beam 520 have good structural stability when bearing load; the first branch 521 and the third branch 523 with variable cross section can smoothly transition through the second branch 522, which can improve the stress concentration situation.

[0085] In the embodiments of this application, the second branch 522 is constructed as a prism structure with a constant cross-section, while the first branch 521 and the third branch 523 are both constructed as prism structures with variable cross-sections. The first branch 521 and the third branch 523 can smoothly transition through the second branch 522. The first branch 521, the second branch 522, and the third branch 523 can be an integral structure, formed integrally by injection molding or casting. Alternatively, the first branch 521, the second branch 522, and the third branch 523 can be a separate structure, connected by riveting, welding, or other methods.

[0086] In the embodiments of this application, the first branch 521 is connected to the top of the side post 300. The first branch 521 and the top of the side post 300 can be connected in various ways, such as by plugging, riveting or welding.

[0087] In the embodiments of this application, the third branch 523 is connected to the top of the central column 100. The third branch 523 and the top of the central column 100 can be connected in various ways, such as by plugging, riveting or welding.

[0088] For more specific details, please refer to Figure 2 The second support beam 520 also includes a reinforcing plate 524, which is located below the third support 523 and connected to the central column 100.

[0089] The beneficial effect here is that the reinforcing plate 524 is located below the third support 523 and connected to the central column 100, which can strengthen the connection strength between the third support 523 and the central column 100 and improve the connection stability of the structure.

[0090] In the embodiments of this application, the reinforcing plate 524 is disposed below the third branch 523 and connected to the central column 100. The reinforcing plate 524, the third branch 523, and the central column 100 can be connected in various ways, such as by plugging, riveting, or welding.

[0091] Please refer to Figure 2 The bottom surfaces of the central column 100, the central heave box 200, the first support beam 510, the side column 300, and the side heave box 400 are flush with each other.

[0092] The beneficial effect here is that the bottom surfaces of all the above-mentioned components of the platform are flush, which facilitates the subsequent transportation of the entire platform out of the factory.

[0093] In the embodiments of this application, the bottom surface of the central column 100, the bottom surface of the central heave box 200, the bottom surface of the first support beam 510, the bottom surface of the side column 300, and the bottom surface of the side heave box 400 can be understood as the lower surfaces of the central column 100, the central heave box 200, the first support beam 510, the side column 300, and the side heave box 400.

[0094] Please refer to Figure 2 The central sway box 200 is provided with a slot 201, and the bottom end of the central column 100 is inserted into the slot 201. The central axis of the slot 201 is set to coincide with the central axis of the central column 100.

[0095] The beneficial effect here is that the bottom end of the central column 100 is inserted into the slot 201, and the central column 100 and the slot 201 are coaxially arranged, which helps to maintain the structural stability and anti-overturning ability of the platform.

[0096] In the embodiments of this application, the bottom end of the central column 100 is inserted into the slot 201, and the bottom end of the central column 100 can be inserted into the slot 201 for fixation, that is, the bottom end of the central column 100 and the slot 201 can be an interference fit.

[0097] For a specific embodiment, please refer to Figure 2 The slot 201 is constructed as a circular slot, the central pillar 100 is constructed as a cylindrical structure; and / or, the central sway box 200 is constructed as a hexagonal prism structure.

[0098] The beneficial effect here is that it enables the bottom end of the central column 100 to smoothly connect and engage with the slot 201, further improving the structural stability and anti-overturning ability of the platform.

[0099] In the embodiments of this application, the slot 201 is constructed as a circular groove, the central column 100 is constructed as a cylindrical structure, and the inner diameter of the slot 201 is equal to the outer diameter of the central column 100, so that the slot 201 and the central column 100 are precisely inserted and fixed.

[0100] In embodiments of this application, the central heave box 200 is constructed as a hexagonal prism structure to facilitate subsequent shipping; for example, the central heave box 200 may be in the form of an equal hexagonal prism structure.

[0101] Please refer to Figure 1 In one embodiment, the wind power generation equipment includes the aforementioned semi-submersible floating wind turbine platform, tower, blades, and generator set. The tower is installed on top of the aforementioned semi-submersible floating wind turbine platform, and the blades and generator set are both located on top of the tower.

[0102] In the aforementioned wind power generation equipment, each side column 300 is arranged around the outer perimeter of the central column 100, and each side column 300 is connected to the central column 100 through a support component 500. That is, the central column 100, the side columns 300, and the support component 500 form a star-shaped structure of at least four columns, which can more effectively disperse and resist loads from all directions, thus improving the overall stability and load-bearing capacity of the platform. The central heave box 200 is located at the bottom of the central column 100, and the side heave boxes 400 are located at the bottom of the side columns 300. This not only provides the necessary buoyancy to support the wind turbine tower, but also increases the platform's heave damping, which helps to optimize the platform's hydrodynamic performance and further enhances the overall stability and load-bearing capacity of the platform.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A semi-submersible floating wind turbine platform, characterized in that, include: Central column (100); A central heave box (200) is located at the bottom of the central column (100); At least three side columns (300) are arranged around the outer periphery of the central column (100), and each of the side columns (300) is connected to the central column (100) and the central heave box (200) through a support assembly (500). A side-suspension box (400) is located at the bottom of the side column (300); Each of the side columns (300) is provided with at least one side sway box (400), and the side sway box (400) is at least partially surrounded on the outer side of the bottom of the side column (300).

2. The semi-submersible floating wind turbine platform according to claim 1, characterized in that, The support assembly (500) includes a first support beam (510), and the bottom of each of the side columns (300) is connected to the central helical box (200) through the first support beam (510).

3. The semi-submersible floating wind turbine platform according to claim 2, characterized in that, The side heave box (400) is at least partially connected to the bottom outer side of the side column (300), and another part of the side heave box (400) is connected to the first support beam (510).

4. The semi-submersible floating wind turbine platform according to claim 3, characterized in that, Each of the aforementioned side columns (300) includes a first surface (301), a second surface (302), a third surface (303), and a fourth surface (304) that are sequentially connected and not coplanar, wherein the fourth surface (304) is disposed opposite to the first surface (301); The first support beam (510) is connected to the fourth surface (304), and each of the side sag boxes (400) is at least partially connected to the second surface (302) and the third surface (303).

5. The semi-submersible floating wind turbine platform according to claim 4, characterized in that, Each of the aforementioned side-suspension boxes (400) includes a first side (401), a second side (402), a third side (403), and a fourth side (404) that are sequentially connected and not coplanar. The first side (401), the second side (402), the third side (403), and the fourth side (404) are all constructed as planar structures. The first side (401) is flush with the first surface (301), the second side (402) is parallel to the second surface (302), the third side (403) is parallel to the third surface (303), and the fourth side (404) is connected to the first support beam (510).

6. The semi-submersible floating wind turbine platform according to claim 5, characterized in that, The first support beam (510) is constructed as a prism structure with a constant cross-section; The first support beam (510) is provided with reinforcing ribs inside, and the fourth side (404) is connected to the position where the first support beam (510) is provided with the reinforcing ribs.

7. The semi-submersible floating wind turbine platform according to claim 5, characterized in that, The width of the side swing box (400) is defined as the vertical distance from the second side (402) to the second surface (302). The width of the side swing box (400) ranges from 4m to 6m, and the height of the side swing box (400) ranges from 2m to 4m.

8. The semi-submersible floating wind turbine platform according to claim 2, characterized in that, Each of the side columns (300) is constructed as a regular hexagonal prism, and each of the side columns (300) is provided with at least two side sway boxes (400), and all the side sway boxes (400) are symmetrically distributed on both sides of the side column (300) along the central axis of the first support beam (510).

9. The semi-submersible floating wind turbine platform according to claim 2, characterized in that, The support assembly (500) further includes a second support beam (520), and the top of each of the side columns (300) is connected to the top of the central column (100) through the second support beam (520).

10. The semi-submersible floating wind turbine platform according to claim 9, characterized in that, The second support beam (520) includes a first branch (521), a second branch (522) and a third branch (523) connected in sequence. The first branch (521) and the third branch (523) are respectively located at both ends of the second branch (522). The first branch (521) is connected to the top of the side column (300), and the third branch (523) is connected to the top of the central column (100). The second branch (522) is constructed as a prism with a constant cross-section, while the first branch (521) and the third branch (523) are both constructed as prisms with a variable cross-section.

11. The semi-submersible floating wind turbine platform according to claim 10, characterized in that, The second support beam (520) also includes a reinforcing plate (524), which is located below the third branch (523) and connected to the central column (100).

12. The semi-submersible floating wind turbine platform according to claim 2, characterized in that, The bottom surfaces of the central column (100), the central heave box (200), the first support beam (510), the side column (300), and the side heave box (400) are flush.

13. The semi-submersible floating wind turbine platform according to claim 1, characterized in that, The central sway box (200) is provided with a slot (201), and the bottom end of the central column (100) is inserted into the slot (201). The central axis of the slot (201) coincides with the central axis of the central column (100).

14. The semi-submersible floating wind turbine platform according to claim 13, characterized in that, The slot (201) is constructed as a circular slot, and the central column (100) is constructed as a cylindrical structure; And / or, the central heave box (200) is constructed as a hexagonal prism structure.

15. A wind power generation device, characterized in that, include: The semi-submersible floating wind turbine platform as described in any one of claims 1-13; The tower is installed on top of the semi-submersible floating wind turbine platform; The blades and generator set are both located at the top of the tower.

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