Tower sections, towers and wind turbines

Abstract

The present disclosure provides a tower section, a tower and a wind turbine generator set, wherein the tower section comprises a tower section body, wherein an end receiving groove is arranged at the first end of the tower section body, a first connecting hole for a connecting component to pass through is arranged on the groove wall of the end receiving groove, and a second connecting hole is arranged at the second end. Compared with the existing tower section, the end flange is omitted, and the first connecting hole and the second connecting hole are respectively arranged on the side walls of the tower section body, so that the structure of the tower section is simpler.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind power generation, and in particular relates to a tower section, a tower and a wind power generator set. Background Art

[0002] As wind power increases, loads become larger, and towers become taller. In order to reduce costs, traditional pure steel towers are gradually being replaced by low-cost concrete towers.

[0003] However, the concrete tower is bulky, and how to provide a tower with a small volume and high structural strength is an important problem that needs to be solved urgently in the art. Summary of the invention

[0004] The main purpose of the present disclosure is to provide a tower section, a tower and a wind turbine generator set to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the present disclosure provides at least the following technical solutions:

[0006] In one aspect of the present disclosure, a tower section is provided, which includes a tower section body, wherein a first end of the tower section body is provided with an end receiving groove, a groove wall of the end receiving groove is provided with a first connecting hole for a connecting assembly to pass through, and a second end is provided with a second connecting hole.

[0007] Compared with the existing tower sections, the tower section provided by the present invention omits the end flange, and the first connecting hole and the second connecting hole are respectively arranged on the side wall of the tower section body, so the structure of the tower section is simpler, reducing the operation and maintenance cost of the wind turbine generator set.

[0008] Optionally, the connection assembly includes a first support body, a second support body and a wedge support that are arranged relative to each other at intervals, and the wedge support is arranged between the first support body and the second support body, and can move relative to the first support body and the second support body along a first direction, so that the first support body and the second support body can move closer to or farther away from each other. In this way, the distance between the first support body and the second support body is adjusted by adjusting the position of the wedge support between the first support body and the second support body, so that the connection assembly is pressed tightly into the first connection hole and the second connection hole, preventing adjacent tower sections from accidentally detaching, and improving the connection reliability of adjacent tower sections. In addition, the connection assembly provided by the present disclosure has a simple structure and low manufacturing cost.

[0009] Specifically, the wedge-shaped support includes a first wedge-shaped body, a second wedge-shaped body, and a connecting member connected between the first wedge-shaped body and the second wedge-shaped body, wherein the connecting member extends along the first direction and is configured such that: when the first wedge-shaped body and the second wedge-shaped body are close to each other, the first supporting body and the second supporting body are far away from each other; when the first wedge-shaped body and the second wedge-shaped body are far away from each other, the first supporting body and the second supporting body are close to each other. In this way, compared with simply using fasteners to connect the tower sections, the size of the connecting assembly is increased, and the contact area with the first connecting hole is increased, thereby improving the shear resistance of the connecting assembly.

[0010] Further, at least one of the first wedge-shaped body and the second wedge-shaped body is a wedge-shaped piece.

[0011] Optionally, the first wedge-shaped body has a first fitting surface that fits with the first supporting body, and the angle α between the first fitting surface and the first direction satisfies 8°≤α≤35°; and / or, the first wedge-shaped body has a second fitting surface that fits with the second supporting body, and the angle β between the second fitting surface and the first direction satisfies 8°≤β≤35°; and / or, the second wedge-shaped body has a third fitting surface that fits with the first supporting body, and the angle γ between the third fitting surface and the first direction satisfies 8°≤γ≤35°; and / or, the second wedge-shaped body has a fourth fitting surface that fits with the second supporting body, and the angle δ between the fourth fitting surface and the first direction satisfies 8°≤δ≤35°.

[0012] In an exemplary embodiment of the present disclosure, the end receiving groove is recessed inward from the first end surface of the tower section body, the end receiving groove includes an inner groove wall and an outer groove wall that are arranged opposite to each other, and the first connection hole is arranged on at least one of the inner groove wall and the outer groove wall. In this way, the first end surface of the tower section body is recessed inward to form a U-shaped groove, which can form a wrap around the inner and outer sides of the second end of the adjacent tower section, so that the second end can be stably arranged in the end receiving groove, thereby improving the connection stability of the adjacent tower sections.

[0013] Optionally, the first connection hole includes an inner connection hole and an outer connection hole, the inner connection hole is arranged on the inner groove wall, the outer connection hole is arranged on the outer groove wall, and the inner connection hole and the outer connection hole are arranged in alignment. In this way, by arranging the inner connection hole and the outer connection hole on the side wall of the tower section, the adjacent tower sections are connected together by means of the connection assembly, the structure is simpler, and the operating cost of the wind turbine generator set is further reduced to a certain extent.

[0014] Furthermore, the inner connection hole and the outer connection hole are waist-shaped holes. This arrangement reduces the difficulty of assembling the tower, increases the probability of the first connection hole and the second connection hole being aligned, and thus improves the assembly efficiency of the wind turbine generator set.

[0015] Specifically, the groove wall of the end receiving groove is provided with a reinforcement ring, so that the structural strength of the tower section is further improved by providing the reinforcement ring.

[0016] Optionally, the tower section further includes an inner reinforcement ring and an outer reinforcement ring, wherein the inner reinforcement ring is fixed to the inner groove wall, and the outer reinforcement ring is fixed to the outer groove wall. In this way, the end receiving groove is connected to the second end of another tower section through the connecting assembly. Since a plurality of connecting holes are provided on the groove wall of the end receiving groove, its structural strength is weakened to a certain extent. Therefore, this defect is overcome by providing the inner reinforcement ring and the outer reinforcement ring, thereby improving the structural strength of the end receiving groove, and thus improving the structural strength of the tower section.

[0017] In another exemplary embodiment of the present disclosure, the tower section body includes an inner tube liner, an outer tube liner and a filling piece, wherein the inner tube liner and the outer tube liner are respectively cylindrical and the outer tube liner is sleeved at intervals on the outer circumference of the inner tube liner, and the filling piece is arranged between the inner tube liner and the outer tube liner. In this way, the filling piece is constrained by the inner tube liner and the outer tube liner and is in a three-dimensional force state, thereby improving the compressive strength and bending resistance of the tower section, and the filling piece can avoid or delay the premature local buckling of the inner tube liner and the outer tube liner, thereby improving the bearing capacity of the tower section.

[0018] Optionally, the inner reinforcement ring, the outer reinforcement ring, the inner tube liner and the outer tube liner are metal parts, the inner groove wall is fixed to the inner tube liner, and the outer groove wall is fixed to the outer tube liner. In this way, the end receiving groove provided by the present disclosure is connected to the inner tube liner and the outer tube liner as a whole, thereby improving the structural strength of the tower section.

[0019] In another aspect of the present disclosure, a tower is provided, the tower comprising at least two tower sections as described above, at least two tower sections are stacked up and down, the end receiving groove can accommodate the second end of the adjacent tower section, the first connection hole and the second connection hole are connected by a connection assembly, and the connection assembly is arranged in the first connection hole and the second connection hole, so that the two adjacent tower sections are connected. In this way, the tower section has a simple structure, is convenient for the maintenance of the wind turbine generator set, avoids operation outside the tower, and improves the safety of the operator's work.

[0020] In another aspect of the present disclosure, a wind turbine generator set is provided, wherein the wind turbine generator set comprises the tower as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or other objects and advantages of the present disclosure will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0022] Figure 1 A partial structural diagram of a tower provided according to an exemplary embodiment of the present disclosure.

[0023] Figure 2 for Figure 1 Structural diagram of the first end of the tower section.

[0024] Figure 3 for Figure 2 Longitudinal cross-sectional view of the tower section.

[0025] Figure 4 for Figure 3 A partial enlarged view of the structure within circle I.

[0026] Figure 5 for Figure 1 Structural diagram of the second end of the tower section.

[0027] Figure 6 for Figure 5 Longitudinal cross-sectional view of the tower section.

[0028] Figure 7 A partial structural diagram of a tower provided according to another exemplary embodiment of the present disclosure.

[0029] Figure 8 for Figure 7 A partial enlarged view of the structure within the middle J circle.

[0030] Fig. 9 for Figure 1 Structural diagram of the connected components in .

[0031] Fig.10 for Fig. 9 A local structural diagram of the connected components in .

[0032] Description of reference numerals:

[0033] 10. Tower section; 11. First connecting hole;

[0034] 12. Tower section body; 13. End receiving groove;

[0035] 14. Second connecting hole; 15. End cover assembly;

[0036] 20. Connecting assembly; 21. First supporting body;

[0037] 22. a second supporting body; 23. a first wedge-shaped body;

[0038] 24. second wedge-shaped body; 25. connecting member;

[0039] 26. Self-locking gasket;

[0040] 111. Internal connection hole; 112. External connection hole;

[0041] 121. Inner cylinder lining; 122. Outer cylinder lining;

[0042] 123. Filling member; 131. Inner tank wall;

[0043] 132. outer tank wall; 133. tank bottom plate;

[0044] 151. End cover body; 152. Sealing element. DETAILED DESCRIPTION

[0045] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the implementation of the present disclosure is limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0046] In one aspect of the present disclosure, a wind turbine generator set is provided, which includes a tower, a nacelle supported on the top of the tower, a generator connected to the nacelle, and an impeller. The impeller is connected to an input shaft of the generator, and the impeller can rotate under the action of wind to drive the generator to generate electricity.

[0047] Reference Figure 1 The tower may include at least two tower sections 10, and the two tower sections 10 may be stacked up and down and connected together through a connecting assembly. For ease of description, this embodiment is described by taking the tower including two tower sections 10 as an example, but is not limited thereto.

[0048] Reference Figures 1 to 8 The present disclosure provides a tower section 10, which includes a cylindrical tower section body 12, an end receiving groove 13 is provided at the first end of the tower section body 12, a first connection hole 11 for a connection assembly 20 to pass through is provided on the groove wall of the end receiving groove 13, and a second connection hole 14 is provided at the second end, that is, the first connection hole 11 and the second connection hole 14 are provided on the side wall of the tower section body 12. By arranging the connection assembly 20 in the first connection hole 11 and the second connection hole 14, two adjacent tower sections 10 are connected.

[0049] The end receiving groove 13 is recessed inward from the first end surface of the tower segment body 12 so that the end receiving groove 13 can receive the second end of the adjacent tower segment 10 . The first connecting hole 11 and the second connecting hole 14 are connected by a connecting assembly.

[0050] Compared with the existing tower segments, the tower segment 10 provided in the present disclosure omits the end flange, and the first connecting hole 11 and the second connecting hole 14 are respectively arranged on the side wall of the tower segment body 12. Therefore, the structure of the tower segment 10 provided in the present disclosure is simpler.

[0051] As an example, the tower section body 12 is substantially cylindrical, and the first connection hole 11 may penetrate the inner wall and the outer wall of the tower section body 12 , that is, extend substantially along the radial direction of the tower section body 12 , but this is not limited thereto.

[0052] The end receiving groove 13 may be an L-shaped groove or a U-shaped groove so as to be sleeved on the second end of the tower section 10 adjacent thereto. This embodiment is described by taking the end receiving groove 13 as a U-shaped groove as an example.

[0053] Reference Figure 2 The end receiving groove 13 includes an inner groove wall 131 and an outer groove wall 132 that are arranged opposite to each other, and the first connecting hole 11 is arranged on at least one of the inner groove wall 131 and the outer groove wall 132. It can be understood that the outer groove wall 132 can be spaced outside the inner groove wall 131 to form the end receiving groove 13 between the outer groove wall 132 and the inner groove wall 131.

[0054] In order to accommodate the second end of the tower segment 10, the outer diameter of the inner groove wall 131 is not larger than the inner diameter of the first end, and the inner diameter of the outer groove wall 132 is not smaller than the outer diameter of the second end, so that the second end of the adjacent tower segment 10 can be smoothly inserted into the end receiving groove 13 of the first end of another tower segment 10.

[0055] In order to facilitate the stable connection of two adjacent tower sections 10, the first connecting hole 11 includes an inner connecting hole 111 and an outer connecting hole 112. The inner connecting hole 111 is arranged on the inner groove wall 131, and the outer connecting hole 112 is arranged on the outer groove wall 132. The inner connecting hole 111 and the outer connecting hole 112 are arranged in alignment. The second connecting hole 14 can be arranged in alignment with the inner connecting hole 111 and the outer connecting hole 112 to facilitate the connection of the connecting components.

[0056] It is understandable that the first connection hole 11 may only include the inner connection hole 111 or the outer connection hole 112. For example, but not limited to, when the end receiving groove 13 is a U-shaped groove, the first connection hole 11 is provided on the inner groove wall 131 or the outer groove wall 132 so as to be aligned with the second connection hole 14. When the end receiving groove 13 is an L-shaped groove, the inner groove wall 131 or the outer groove wall 132 is provided on the groove wall of the end receiving groove 13.

[0057] In order to further improve the structural strength of the end receiving groove 13, a reinforcement ring may be provided on the groove wall of the end receiving groove 13. Optionally, the tower section 10 further includes an inner reinforcement ring and an outer reinforcement ring, wherein the inner reinforcement ring is fixed to the inner groove wall 131 and the outer reinforcement ring is fixed to the outer groove wall 132.

[0058] As an example, the inner reinforcement ring, the outer reinforcement ring, the inner groove wall 131 and the outer groove wall 132 may be metal parts, for example but not limited to, they may all be stainless steel parts.

[0059] In order to improve the structural strength of the end receiving groove 13, the outer reinforcement ring and the outer groove wall 132 can be an integral structure, and the inner reinforcement ring and the inner groove wall 131 can be an integral structure, that is, in the figure, the outer reinforcement ring and the outer groove wall 132 are shown as one component, and the inner reinforcement ring and the inner groove wall 131 are shown as one component.

[0060] Continue to refer to Figure 3 In order to further improve the structural strength of the end receiving groove 13, the end receiving groove 13 further includes a groove bottom plate 133, which may be annular, with the radial inner edge of the groove bottom plate 133 fixed to the inner groove wall 131, and the radial outer edge of the groove bottom plate 133 fixed to the outer groove wall 132. As an example, the first connection hole 11 is located above the groove bottom plate 133, so that when two adjacent tower sections 10 are stacked, the second end of one tower section 10 can be smoothly supported on the groove bottom plate 133 of the end receiving groove 13 of the other tower section 10. Optionally, the groove bottom plate 133 is a metal part, for example but not limited to, the groove bottom plate 133 is a stainless steel part, and the groove bottom plate 133 is welded to the inner groove wall 131 and the outer groove wall 132 respectively, but not limited thereto.

[0061] In order to reduce the difficulty of tower assembly and facilitate accurate alignment of the first connection hole 11 and the second connection hole 14, at least one of the first connection hole 11 and the second connection hole 14 is a waist-shaped hole. As an example, the long axis of the waist-shaped hole can extend along the axial direction of the tower section, but is not limited thereto.

[0062] Reference Figure 7 and Figure 8 In order to increase the service life of the connection assembly, the tower section 10 also includes an end cover assembly 15, which can cover the outer wall of the first connection hole 11 to prevent the connection assembly from contacting with external humid air or rainwater, thereby avoiding corrosion of the connection assembly, increasing the service life of the connection assembly, and reducing the operating cost of the tower.

[0063] The end cover assembly 15 may include an end cover body 151 and a sealing member 152. The end cover body 151 may be arranged on the hole wall of the first connection hole 11 to cover and shield the first connection hole 11. The sealing member 152 is pressed between the hole wall and the end cover body 151, thereby improving the sealing performance of the connection between the hole wall and the end cover body 151. As an example, the end cover body 151 is connected to the hole wall by fasteners, for example but not limited to, a plurality of fasteners are arranged at equal intervals in the circumference of the end cover body 151, but not limited thereto. Optionally, the fasteners may be bolts, but not limited thereto.

[0064] Reference Fig. 9 and Fig.10 In this embodiment, the connection assembly 20 may be a bolt, but is not limited thereto. In order to improve the service life of the connection assembly 20 and its shear resistance, the connection assembly 20 includes a first support body 21, a second support body 22 and a wedge support that are arranged relatively at intervals. The wedge support is arranged between the first support body 21 and the second support body 22 and can move relative to the first support body 21 and the second support body 22 along a first direction so that the first support body 21 and the second support body 22 can move closer to or farther from each other.

[0065] As an example, the wedge-shaped support includes a first wedge-shaped body 23, a second wedge-shaped body 24, and a connecting member 25 connected between the first wedge-shaped body 23 and the second wedge-shaped body 24, the connecting member 25 extends along a first direction, and the connecting assembly 20 is configured as follows: when the first wedge-shaped body 23 and the second wedge-shaped body 24 are close to each other, the first support body 21 and the second support body 22 are far away from each other; when the first wedge-shaped body 23 and the second wedge-shaped body 24 are far away from each other, the first support body 21 and the second support body 22 are close to each other.

[0066] As an example, at least one of the first wedge 23 and the second wedge 24 is configured to be wedge-shaped, so that the distance between the first support 21 and the second support 22 can be adjusted by moving the first wedge 23 and the second wedge 24 closer to or farther from each other.

[0067] Continuing to refer to the drawings, the first wedge 23 and the second wedge 24 can be arranged opposite to each other, and can be connected together by a connecting member 25 , and the first wedge 23 and the second wedge 24 can be brought closer or farther away by adjusting the connecting member 25 .

[0068] When the first wedge 23 and the second wedge 24 are close to each other, the first support body 21 and the second support body 22 can be moved away from each other under the support of the first wedge 23 and the second wedge 24 , so that the first support body 21 and the second support body 22 are pressed against the inner wall of the first connecting hole 11 .

[0069] As an example, in the present disclosure, the first direction may be the radial direction of the tower segment 10 , and the first support body 21 and the second support body 22 may be arranged at intervals along the axial direction of the tower segment 10 , but the present invention is not limited thereto.

[0070] Optionally, the connecting member 25 may be provided with an external thread, the first wedge-shaped body 23 may be provided with a through hole for the connecting member 25 to pass through, and the second wedge-shaped body 24 may be provided with a threaded hole matching the external thread. The connecting member 25 is passed through the through hole and screwed into the threaded hole. By screwing the connecting member 25, the length screwed into the threaded hole can be adjusted, thereby adjusting the distance between the first wedge-shaped body 23 and the second wedge-shaped body 24.

[0071] It is understandable that in this embodiment, the connecting member 25 can be a fastening bolt, but is not limited thereto. Compared with the fastening bolt, the contact area between the first support body 21 and the second support body 22 and the first connecting hole 11 is significantly increased, thereby improving the shear resistance of the connecting assembly 20.

[0072] In order to further improve the connection reliability of the connection assembly 20, the connection assembly 20 may further include a self-locking washer 26, the connection member 25 may include a bolt head and a bolt rod, and the self-locking washer 26 may be arranged between the bolt head and the first wedge 23. In addition, in the case where the bolt head is arranged on one side of the second wedge 24, the self-locking washer 26 may be arranged between the bolt head and the second wedge 24, and the self-locking washer 26 can prevent the connection member 25 from loosening, thereby improving the connection reliability of the connection assembly 20.

[0073] Further, the first wedge 23 has a first fitting surface that fits with the first support 21, the first fitting surface may be a plane, and the angle α between the first fitting surface and the first direction satisfies 8°≤α≤35°, that is, as the first wedge 23 and the second wedge 24 approach each other, the distance between the first support 21 and the second support 22 is expanded by the first wedge 23, so that the size of the connecting assembly 20 in the axial direction of the tower section 10 is increased so that it can be pressed into the first connecting hole 11. As an example, the angle α is 10°, or 15°, or 20°, which can be selected according to actual needs.

[0074] Similarly, the first wedge-shaped body 23 may also have a second fitting surface fitted with the second support body 22, the second fitting surface may be a plane, and an angle β between the second fitting surface and the first direction satisfies 8°≤β≤35°.

[0075] Optionally, the second wedge-shaped body 24 has a third fitting surface fitted with the first support body 21, and the angle γ between the third fitting surface and the first direction satisfies 8°≤γ≤35°. The second wedge-shaped body 24 has a fourth fitting surface fitted with the second support body 22, and the angle δ between the fourth fitting surface and the first direction satisfies 8°≤δ≤35°.

[0076] Reference Figure 4In order to further improve the structural strength of the tower section 10, the tower section body 12 includes an inner tube liner 121, an outer tube liner 122 and a filling piece 123. The inner tube liner 121 and the outer tube liner 122 are respectively cylindrical, and the outer tube liner 122 is arranged at intervals on the outer periphery of the inner tube liner 121, and the filling piece 123 is arranged between the inner tube liner 121 and the outer tube liner 122.

[0077] As an example, the filling member 123 may be a concrete member, or may be a member formed of a high-strength grouting material. Concrete members are inexpensive and can reduce the manufacturing cost of the tower section 10, thereby reducing the manufacturing cost of the tower frame. The high-strength grouting material member can stably bond the inner tube liner 121 and the outer tube liner 122 together, further improving the structural strength of the tower section 10.

[0078] Optionally, the tower section body 12 provided by the present disclosure can be made of concrete casting, or high-strength grouting material casting. Specifically, the inner cylinder liner 121 can be nested in the inner cavity of the outer cylinder liner 122, and concrete or high-strength grouting material can be cast between the inner cylinder liner 121 and the outer cylinder liner 122, so that the inner cylinder liner 121, the outer cylinder liner 122 and the filling piece 123 are stably connected together.

[0079] Optionally, the inner barrel liner 121 and the outer barrel liner 122 are metal parts, so that the filler 123 is constrained by the inner barrel liner 121 and the outer barrel liner 122 and is in a three-dimensional force state, thereby improving the compressive strength and bending resistance of the tower section 10, and the filler 123 can avoid or delay the premature local buckling of the inner barrel liner 121 and the outer barrel liner 122, thereby improving the bearing capacity of the tower section 10. Further, the inner barrel liner 121 and the outer barrel liner 122 are stainless steel parts, but not limited thereto.

[0080] Continue to refer to Figure 4 The inner tube liner 121 and the outer tube liner 122 are fixedly connected to the inner groove wall 131 and the outer groove wall 132 respectively, for example but not limited to, the inner tube liner 121 and the inner groove wall 131 are welded and fixed, and the outer tube liner 122 and the outer groove wall 132 are welded and fixed, but not limited to this.

[0081] In this embodiment, the outer groove wall 132 , the outer cylinder liner 122 , the groove bottom plate 133 , the inner groove wall 131 and the inner cylinder liner 121 are fixed as a whole to improve the structural strength of the tower section 10 .

[0082] Furthermore, the bottom end of the outer groove wall 132 is fixed to the top end of the outer tube liner 122, the bottom end of the inner groove wall 131 is fixed to the top end of the inner tube liner 121, and the groove bottom plate 133 is arranged at the non-end part of the outer groove wall 132, that is, the connection between the groove bottom plate 133 and the outer groove wall 132 and the connection between the outer groove wall 132 and the outer tube liner 122 are staggered to avoid local structural strength deterioration.

[0083] The tower section 10 provided in the present disclosure includes a cylindrical tower section body 12, and an end receiving groove 13 is arranged at the end of the tower section body 12. Adjacent tower sections 10 can be connected together through the end receiving groove 13, so there is no need to additionally arrange an end flange, the structure is simpler, and the operating cost of the wind turbine generator set is reduced.

[0084] The tower section 10 provided by the present disclosure includes an outer tube liner 122 and an inner tube liner 121 that are externally wrapped by a filling piece 123, so that the filling piece 123 is constrained by the inner tube liner 121 and the outer tube liner 122 and is in a three-way stress state, thereby improving the compressive strength and bending resistance of the tower section 10, and the filling piece 123 can avoid or delay the premature local buckling of the inner tube liner 121 and the outer tube liner 122, thereby improving the bearing capacity of the tower section 10.

[0085] In the description of the present disclosure, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0086] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0087] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0088] The features, structures or characteristics described in the present disclosure may be combined in one or more embodiments in any suitable manner. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

Claims

1. A tower section, characterized in that: The tower section comprises a tower section body (12); an end receiving groove (13) is provided at a first end of the tower section body (12); a first connecting hole (11) for a connecting assembly (20) to pass through is provided on a groove wall of the end receiving groove (13); and a second connecting hole (14) is provided at a second end; the connecting assembly (20) comprises a first supporting body (21), a second supporting body (22) and a wedge-shaped support which are arranged opposite to each other at intervals; the wedge-shaped support is arranged between the first supporting body (21) and the second supporting body (22) and is movable relative to the first supporting body (21) and the second supporting body (22) in a first direction so that the first supporting body (21) and the second supporting body (22) can approach or move away from each other; when the first supporting body (21) moves away from the second supporting body (22), the first supporting body (21) and the second supporting body (22) can be pressed against the inner wall of the first connecting hole (11) so as to improve the shear resistance of the connecting assembly (20).

2. The tower section according to claim 1, characterized in that The wedge-shaped support comprises a first wedge-shaped body (23), a second wedge-shaped body (24), and a connecting member (25) connected between the first wedge-shaped body (23) and the second wedge-shaped body (24), wherein the connecting member (25) extends along the first direction and is configured as follows: When the first wedge-shaped body (23) and the second wedge-shaped body (24) are close to each other, the first support body (21) and the second support body (22) are far away from each other; when the first wedge-shaped body (23) and the second wedge-shaped body (24) are far away from each other, the first support body (21) and the second support body (22) are close to each other.

3. The tower section according to claim 2, characterized in that: At least one of the first wedge-shaped body (23) and the second wedge-shaped body (24) is a wedge-shaped piece.

4. The tower section according to claim 2, characterized in that: The first wedge-shaped body (23) has a first fitting surface that fits the first support body (21), and an angle α between the first fitting surface and the first direction satisfies 8°≤α≤35°; and / or, The first wedge-shaped body (23) has a second fitting surface that fits with the second support body (22), and an angle β between the second fitting surface and the first direction satisfies 8°≤β≤35°; and / or, The second wedge-shaped body (24) has a third bonding surface that is bonded to the first support body (21), and an angle γ between the third bonding surface and the first direction satisfies 8°≤γ≤35°; and / or, The second wedge-shaped body (24) has a fourth bonding surface that is bonded to the second support body (22), and an angle δ between the fourth bonding surface and the first direction satisfies 8°≤δ≤35°.

5. The tower section according to claim 1, characterized in that: The end receiving groove (13) is recessed inward from the first end surface of the tower section body (12), the end receiving groove (13) comprises an inner groove wall (131) and an outer groove wall (132) arranged opposite to each other, and the first connecting hole (11) is arranged on at least one of the inner groove wall (131) and the outer groove wall (132).

6. The tower section according to claim 5, characterized in that The first connection hole (11) comprises an inner connection hole (111) and an outer connection hole (112); the inner connection hole (111) is arranged on the inner groove wall (131); the outer connection hole (112) is arranged on the outer groove wall (132); the inner connection hole (111) and the outer connection hole (112) are arranged in alignment.

7. The tower section according to claim 6, characterized in that The inner connection hole (111) and the outer connection hole (112) are waist-shaped holes.

8. The tower section according to claim 1, characterized in that: The groove wall of the end accommodating groove (13) is provided with a reinforcement ring.

9. The tower section according to claim 5, characterized in that: The tower section also includes an inner reinforcement ring and an outer reinforcement ring, the inner reinforcement ring being fixed to the inner groove wall (131), and the outer reinforcement ring being fixed to the outer groove wall (132).

10. The tower section according to claim 5, characterized in that: The tower section body (12) comprises an inner cylinder liner (121), an outer cylinder liner (122) and a filling piece (123); the inner cylinder liner (121) and the outer cylinder liner (122) are respectively cylindrical, and the outer cylinder liner (122) is sleeved on the outer circumference of the inner cylinder liner (121) at intervals; and the filling piece (123) is arranged between the inner cylinder liner (121) and the outer cylinder liner (122).

11. The tower section according to claim 10, characterized in that The inner reinforcement ring, the outer reinforcement ring, the inner cylinder liner (121) and the outer cylinder liner (122) are metal parts; the inner groove wall (131) is fixed to the inner cylinder liner (121); and the outer groove wall (132) is fixed to the outer cylinder liner (122).

12. The tower section according to claim 6, characterized in that The tower section also includes an end cover assembly (15), wherein the end cover assembly (15) blocks and covers the outside of the external connection hole (112).

13. A tower, characterized in that: The tower comprises at least two tower sections according to any one of claims 1 to 12, wherein the at least two tower sections are stacked one above the other, the end receiving groove (13) is capable of receiving the second end of an adjacent tower section (10), the first connecting hole (11) and the second connecting hole (14) are connected via a connecting assembly (20), and the connecting assembly (20) is arranged in the first connecting hole (11) and the second connecting hole (14) so ​​as to connect two adjacent tower sections (10).

14. A wind turbine generator set, characterized in that: The wind turbine generator set comprises the tower according to claim 13.

Images