Base of vertical axis wind turbine

Abstract

A base of a vertical axis wind turbine is characterized by comprising a center supporting body, a ring position supporting body and a bearing platform. Wherein the central support body is positioned at the central position; the ring position supporting bodies are circumferentially arranged around the central supporting body; the bearing platform is arranged at the upper parts of the central supporting body and the ring position supporting bodies; and / or a working layer is arranged at the lower part of the bearing platform; and / or a lower connecting body is arranged at the lower part of the working layer and is used for connecting the lower parts of the ring position supporting bodies and the central supporting body. According to the invention, the foundation type can be selected for the vertical-axis wind turbine according to the construction requirements, the land construction site, the offshore construction site and the open sea construction site, and the support is provided for the operation of the vertical-axis wind turbine; the center of gravity is in the center of a circle, and the center of gravity of the structure is lower than that of a horizontal shaft and can be unconditionally stable.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, and in particular to a base for a vertical axis wind turbine. Background Technology

[0002] Wind power, as a clean and renewable energy source, has experienced rapid development.

[0003] Currently, three-bladed horizontal axis wind turbines have been installed on land, nearshore, and offshore, with power reaching 15MW and above. To obtain more energy and generate greater power, the blades need to have a larger sweeping area, which dictates that the nacelle needs to be installed at a higher height, mostly above 100 meters. The rotor weight is mostly above 100 tons, the nacelle is mostly above 100 tons, and a single tower section is mostly above 50 tons. The high height and great weight determine that the center of gravity of the horizontal axis wind turbine is located high, which causes inconvenience in installation and maintenance, and increases the difficulty and cost of construction.

[0004] Vertical axis wind turbines have a lower nacelle installation height compared to horizontal axis wind turbines. Their blades rotate around a vertical axis, resulting in a low center of gravity, reduced high-altitude work requirements for installation and maintenance, and the elimination of the need for a yaw system to adjust the blades for wind alignment. While vertical axis wind turbines offer many advantages and theoretical benefits, most current models are small and come in various styles. Large vertical axis wind turbines are not yet commercially available. The inventors have identified this primarily as a result that the technology for vertical axis wind turbines has not yet been fully resolved. Large-scale construction would be difficult to achieve stable operation, and the return on investment cannot yet reach the level of horizontal axis wind turbines.

[0005] Therefore, further improvements to the technology of vertical axis wind turbines are needed to enable high-power vertical axis wind turbines to operate stably on land, nearshore, and offshore, which has become an urgent engineering problem to be solved. Summary of the Invention

[0006] The purpose of this invention is to provide a base for a high-power vertical axis wind turbine that can be installed on land, near the sea, or in the open sea, in order to solve the technical problems such as the inability of vertical axis wind turbines to operate stably after being scaled up.

[0007] The objective of this invention is achieved through the following technical solution:

[0008] A base for a vertical axis wind turbine, characterized in that it comprises: a central support (1), a ring support (2), and a support platform (3); wherein,

[0009] The central support (1) is located in the center.

[0010] The ring support (2) is arranged circumferentially around the central support (1);

[0011] The support platform (3) is located on the upper part of the central support body (1) and the ring support body (2);

[0012] A working layer (4) is provided at the lower part of the foundation (3);

[0013] A lower connecting body (5) is provided at the lower part of the working layer (4) to connect the lower parts of the ring support body (2) and the center support body (1) to each other.

[0014] The advantages and beneficial effects of this invention are:

[0015] 1. This invention can provide support for the operation of vertical axis wind turbines by selecting the type of foundation according to the construction requirements and the construction location (land, near sea, or offshore).

[0016] 2. The force is uniform in the circumference, the center of gravity is at the center of the circle, and the center of gravity of the structure is lower than the horizontal axis, so it can be unconditionally stable; Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is the pile-type base 1 of the vertical axis wind turbine of the present invention.

[0019] Figure 2 This is the pile-type base 2 of the vertical axis wind turbine of the present invention.

[0020] Figure 3 This invention relates to a semi-submersible floating base for a vertical axis wind turbine. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be preferably described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if "and / or" or "and / or" appears throughout the text, it includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies solutions A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] like Figure 1 , 2 As shown in Figure 3,

[0025] Example 1

[0026] like Figure 1 A vertical axis wind turbine base according to one embodiment includes: a central support (1), a ring support (2), and a platform (3); wherein, the central support (1) is located in the center; the ring support (2) is arranged circumferentially around the central support (1); and the platform (3) is disposed on the upper part of the central support (1) and the ring support (2).

[0027] The number of central support bodies (1) is a single piece or a group of several pieces; the top of the central support body (1) is connected to the foundation (3); the structure of the central support body (1) is a solid body, the material is a cylindrical steel pipe, or a polygonal pipe, or reinforced concrete, and the shape is a cylinder, or a frustum, or a polygonal column.

[0028] The ring support (2) consists of several rings, with more than three groups in each ring. Each ring support (2) consists of a single column or two columns, which are evenly arranged around the central support (1) in a circumferential direction. The ring support (2) is a solid body made of cylindrical steel pipe, polygonal pipe, or reinforced concrete, and is shaped as a cylinder, a frustum, or a polygonal column. The upper part of the ring support (2) is connected to the foundation (3). The outermost ring of the ring support (2) is more than 5 meters away from the central support (1).

[0029] The platform (3) is level with the horizontal plane and includes several ring-shaped platform (32) fixed on the upper part of several ring-shaped support bodies (2). The top of the central support body (1) is provided with a central platform (31). The several ring-shaped platform (32) are connected to the central platform (31) with a radial platform (33). The platform (3) has a truss structure, or a steel structure, or a reinforced concrete structure. Several rings of tracks are provided on the upper part of the several ring-shaped platform (32). The side of the tracks is provided with a passage for inspection and passage. The ring-shaped platform (32) is circular or polygonal. The central platform (31) is provided with a cabin. The outermost ring of tracks on the upper part of the platform (3) is provided with a locking device. The platform (3) is provided with a passage leading to the ground for operation and passage.

[0030] The base of the vertical axis wind turbine also includes diagonal bracing and / or transverse bracing for connecting and fixing any two of the central support (1), ring support (2), and base (3).

[0031] The central support (1) and the ring support (2) are located on the bearing layer of the foundation and are used as the base for vertical axis wind turbines on land or near the sea.

[0032] Example 2:

[0033] like Figure 2 A vertical axis wind turbine base according to one embodiment includes: a central support (1), a ring support (2), and a platform (3); wherein, the central support (1) is located in the center; the ring support (2) is arranged circumferentially around the central support (1); the platform (3) is set on the upper part of the central support (1) and the ring support (2); and a working layer (4) is set on the lower part of the platform (3).

[0034] The number of central support bodies (1) is a single piece or a group of several pieces; the top of the central support body (1) is connected to the foundation (3), and the working layer (4) is connected in the middle of the central support body (1); the structure of the central support body (1) is a solid body, the material is a cylindrical steel pipe, or a polygonal pipe, or reinforced concrete, and the shape is a cylinder, or a frustum, or a polygonal column.

[0035] The ring support (2)(2) consists of several rings, with more than three groups in each ring. Each ring support (2)(2) consists of a single column or two columns, which are evenly arranged around the central support (1) in a circumferential direction. The ring support (2)(2) is a solid body made of cylindrical steel pipe, polygonal pipe, or reinforced concrete, and is shaped as a cylinder, a frustum, or a polygonal column. The upper part of the ring support (2)(2) is connected to the support platform (3), and the middle part of the ring support (2)(2) is connected to the work platform. The outermost ring of the ring support (2)(2) has a radius greater than 5 meters from the central support (1).

[0036] The platform (3) is level with the horizontal plane and includes several ring-shaped support platforms (32) fixed on the upper part of several ring-shaped support bodies (2)(2). The top of the central support body (1) is provided with a central support platform (31). The several ring-shaped support platforms (32) are connected to the central support platform (31) with a radial support platform (33). The platform (3) has a truss structure, or a steel structure, or a reinforced concrete structure. Several ring-shaped tracks are provided on the upper part of the several ring-shaped support platforms (32). The side of the tracks is provided with a passage for inspection and passage. The ring-shaped support platforms (32) are circular, or annular, or polygonal. The central support platform (31) is provided with a cabin. The outermost ring of tracks on the upper part of the platform (3) is provided with a locking device. The platform (3) is provided with a passage leading to the working layer (4) for operation and passage.

[0037] The working layer (4) is level with the horizontal plane and includes several ring-shaped support platforms (32) with several ring-shaped work platforms (42) set below them, a central work platform (41) set below the central support platform (31), and a radial work platform (43) connecting the ring-shaped work platforms (42) and the central work platform (41). The ring-shaped work platforms (42) of the working layer (4) are fixed on the upper part of the ring-shaped support bodies (2), and the central work platform (41) is fixed on the upper part of the central support body (1). The working layer (4) has a truss structure, or a steel structure, or a reinforced concrete structure. The ring-shaped work platforms (42) are circular, or annular, or polygonal. The working layer (4) is equipped with a landing platform and a hoisting platform for landing passage and transportation passage.

[0038] The base of the vertical axis wind turbine also includes diagonal bracing and / or horizontal bracing for connecting and fixing any two of the central support (1), ring support (2), platform (3), working layer (4), landing platform, and hoisting platform.

[0039] The center platform (31) and the center control panel can be designed as one of them. When only the center platform (31) is provided, the circle control panel is connected to the center platform (31) through the radius of the control panel. When only the center control panel is provided, the cabin is located on the center control panel.

[0040] The central support (1) and the ring support (2) are located on the bearing layer of the foundation and are used as the base for vertical axis wind turbines on land or near the sea.

[0041] Example 3:

[0042] like Figure 3A vertical axis wind turbine base according to one embodiment includes: a central support (1), a ring support (2), and a platform (3); wherein, the central support (1) is located in the center; the ring support (2) is arranged circumferentially around the central support (1); and the platform (3) is disposed on the upper part of the central support (1) and the ring support (2);

[0043] A working layer (4) is provided at the lower part of the foundation (3); a lower connecting body (5) is provided at the lower part of the working layer (4) to connect the lower parts of the ring support body (2) and the central support body (1).

[0044] The number of central support bodies (1) is a single piece or a group of several pieces; the top of the central support body (1) is connected to the support platform (3), and the working layer (4) is connected in the middle of the central support body (1); the structure of the central support body (1) is a hollow floating body, the material is cylindrical steel pipe, or polygonal pipe, or reinforced concrete, and the shape is cylindrical, or frustum, or polygonal column. The central support body (1) and the ring support body (2) are equipped with support components inside, and at their bottom, there is a cylindrical, frustum, or spherical steel structure with a diameter greater than that of the central support body (1), and a horizontal steel plate in the shape of ring, fan ring, bow, or rectangle is set.

[0045] The ring support (2) consists of several rings, with more than three groups in each ring. Each group of ring support (2) consists of a single column or two columns, evenly arranged circumferentially around the central support (1). The structure of the ring support (2) is a hollow floating body, made of cylindrical steel pipe, polygonal pipe, or reinforced concrete, and shaped as a cylinder, frustum, or polygonal column. The upper part of the ring support (2) is connected to the support platform (3), and the middle part of the ring support (2) is connected to the work platform. The outermost ring of the ring support (2) has a radius greater than 5 meters from the central support (1). The ring support (2) is equipped with internal support components, and at its bottom, it is equipped with a cylindrical, frustum, or spherical steel structure with a diameter greater than that of the ring support (2), and is equipped with annular, fan-shaped, bow-shaped, or rectangular horizontal steel plates. The ring support (2) is equipped with a connecting pair for connection with the mooring system.

[0046] The platform (3) is level with the horizontal plane and includes several ring-shaped platform (32) fixed on the upper part of several ring-shaped support bodies (2). The top of the central support body (1) is provided with a central platform (31). The several ring-shaped platform (32) are connected to the central platform (31) with a radial platform (33). The platform (3) has a truss structure, or a steel structure or a reinforced concrete structure. Several rings of tracks are provided on the upper part of the several ring-shaped platform (32). The side of the tracks is provided with a passage for inspection and passage. The ring-shaped platform (32) is circular, or annular, or polygonal. The engine room is provided on the upper part of the central platform (31). A locking device is provided on the outer side of the outermost ring of tracks on the upper part of the platform (3). The platform (3) is provided with a passage leading to the working layer (4) for operation and passage.

[0047] The working layer (4) is level with the horizontal plane and includes several ring-shaped support platforms (32) with several ring-shaped work platforms (42) set below them, a central work platform (41) set below the central support platform (31), and a radial work platform (43) connecting the ring-shaped work platforms (42) and the central work platform (41). The ring-shaped work platforms (42) of the working layer (4) are fixed on the upper part of the ring-shaped support body (2), and the central work platform (41) is fixed on the upper part of the central support body (1). The working layer (4) has a truss structure, or a steel structure or a reinforced concrete structure. The ring-shaped work platforms (42) are circular or polygonal. The working layer (4) is equipped with a landing platform and a hoisting platform for landing passage and transportation passage.

[0048] The lower connecting body (5) includes a lower connecting body (51) for connecting the bottom of several ring-shaped support bodies (2), and a lower connecting body (52) for connecting the bottom of the ring-shaped support body (2) and the central support body (1); the lower connecting body (5) is a hollow floating structure or a truss structure, made of round steel pipe, square steel pipe, polygonal steel pipe, or elliptical steel pipe; the lower connecting body (5) is provided with a ring-shaped, fan-shaped, bow-shaped, or rectangular horizontal steel plate; the lower connecting body (51) is a polygon or a circle around the central support body (1).

[0049] The base of the vertical axis wind turbine also includes diagonal bracing and / or horizontal bracing for connecting and fixing any two of the central support (1), ring support (2), platform (3), working layer (4), landing platform, hoisting platform, and lower connecting body (5).

[0050] The center platform (31) and the center control panel can be designed as one of them. When only the center platform (31) is provided, the circle control panel is connected to the center platform (31) through the radius of the control panel. When only the center control panel is provided, the cabin is located on the center control panel.

[0051] The central support (1) and the ring support (2) are semi-submersible and float on the water surface. They are connected to the base by an anchoring system for fixation. Alternatively, the central support (1) and the ring support (2) are supported at the bottom by a pile foundation. They are used as the base for vertical axis wind turbines in nearshore or offshore areas.

[0052] Thus, the objective of this invention is achieved.

[0053] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or direct / indirect applications in other technical fields, are included within the patent protection scope of the present invention.

Claims

1. A base for a vertical axis wind turbine, characterized in that, include: Central support (1), ring support (2), and pier (3); among which, The central support (1) is located in the center. The ring support (2) is arranged circumferentially around the central support (1); The support platform (3) is located on the upper part of the central support body (1) and the ring support body (2); A working layer (4) is provided at the lower part of the foundation (3); The lower part of the working layer (4) is provided with a lower connecting body (5) for connecting the lower parts of the ring support body (2) and the center support body (1) to each other.

2. The base for a vertical axis wind turbine according to claim 1, characterized in that: The central support (1) consists of a single or a group of several supports connected to the top of the support platform (3) and / or the support of the working layer (4) connected to the middle of the central support (1).

3. The base for a vertical axis wind turbine according to claim 1, characterized in that: The ring support (2) consists of several rings, with more than three groups in each ring. Each group of ring support (2) consists of a single column or two columns. The ring support (2) is evenly arranged around the central support (1) in a circumferential direction. The outermost ring of the ring support (2) has a radius of more than 5 meters from the central support (1). The upper part is connected to the support platform (3), and / or the working layer (4) is connected in the middle of the ring support (2).

4. The base for a vertical axis wind turbine according to claim 1, characterized in that: The central support (1) and the ring support (2) of the base are solid or hollow floating bodies, located on the bearing layer of the foundation or semi-submersible and floating on the water surface. They are made of cylindrical steel pipe, polygonal pipe or reinforced concrete, and are cylindrical, frustum or polygonal column.

5. The base for a vertical axis wind turbine according to claim 1, characterized in that: The central support (1) and the ring support (2) of the base are provided with support members inside, and a damping disk is provided at the bottom of them. A horizontal steel plate in the shape of a ring, a fan ring, an arc, or a rectangle is provided on the damping disk.

6. The base for a vertical axis wind turbine according to claim 1, characterized in that: The support platform (3) includes several ring-shaped support platforms (32) fixed on the upper part of several ring-shaped support bodies (2), a central support platform (31) is provided on the top of the central support body (1), and a radial support platform (33) connecting the several ring-shaped support platforms (32) and the central support platform (31).

7. The base for a vertical axis wind turbine according to claim 1, characterized in that: The working layer (4) includes several ring-shaped support platforms (32) with several ring-shaped worktables (42) arranged below them, a central worktable (41) arranged below the central support platform (31), and a radial worktable (43) connecting the several ring-shaped worktables (42) and the central worktable (41). The several ring-shaped worktables (42) of the working layer (4) are fixed on the upper part of the several ring-shaped support bodies (2), and the central worktable (41) is fixed on the upper part of the central support body (1).

8. The base for a vertical axis wind turbine according to claim 1, characterized in that: The base platform (3) and the working layer (4) are structured as truss structure, steel structure, reinforced concrete structure, I-beam structure, or box beam structure.

9. The base for a vertical axis wind turbine according to claim 1, characterized in that: The lower connecting body (5) includes a lower connecting body (51) that connects the bottom of several ring-shaped support bodies (2) and a lower connecting body (52) that connects the bottom of the ring-shaped support body (2) to the bottom of the central support body (1).

10. The base of a vertical axis wind turbine according to claim 1, characterized in that: The lower connecting body (5) is a hollow floating structure or a truss structure, made of round steel pipe, square steel pipe, polygonal steel pipe, or elliptical steel pipe.

11. The base for a vertical axis wind turbine according to claims 6, 7, and 9, characterized in that: The ring support platform (32), the ring work platform (42), and the lower ring connecting body (51) are circular, annular, or polygonal with the wind turbine shaft as the center.

12. The base for a vertical axis wind turbine according to claim 9, characterized in that: The lower connecting body (5) is provided with a horizontal steel plate in the form of a ring, a fan ring, an arc, or a rectangle.

13. The damping disc according to claim 5, characterized in that: The damping disc is a steel structure that is cylindrical, frustum or sphere with a diameter greater than that of the central support (1) or the ring support (2).

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