Tower, wind generating set and switching cylinder section

Abstract

The invention relates to a tower, a wind generating set and an adapter barrel section, and the tower comprises a barrel body which comprises an end tower barrel section; the adapter tube section comprises a basic tube body, and the basic tube body and the end tower tube section are arranged in a stacked mode in the axial direction of the tube body; the top tower drum section is inserted into the foundation drum body, the top tower drum section protrudes out of the foundation drum body towards the side deviating from the drum body in the axial direction, and orthographic projections of the top tower drum section, the foundation drum body and the end tower drum section in the axial direction are partially overlapped; and the connecting assembly is arranged in an overlapping area of the top tower drum section, the foundation drum body and the end tower drum section and connects the top tower drum section, the foundation drum body and the end tower drum section. According to the tower, the wind generating set and the switching barrel section, the tower is high in overall rigidity, good in stress performance and high in safety performance.

Description

Technical Field

[0001] The present application relates to the field of wind power technology, and in particular to a tower, a wind turbine generator set and a switching barrel section. Background Art

[0002] At present, my country's wind power generation technology is in full swing. With the continuous increase in the capacity of wind turbines, the tower height continues to increase, and the overall performance requirements of the tower are getting higher and higher. Under this trend, hybrid towers are favored in the industry for their high rigidity, high tower height and low cost.

[0003] However, the hybrid tower in the related art has low overall stiffness and poor stress-bearing performance, which affects the safety of the tower. Summary of the invention

[0004] The embodiments of the present application provide a tower, a wind turbine generator set and a transition barrel section. The tower has high overall rigidity, good force-bearing performance and high safety performance.

[0005] On the one hand, according to an embodiment of the present application, a tower is proposed, comprising: a barrel body, including an end tower barrel section; a transition barrel section, including a basic barrel body, the basic barrel body is stacked with the end tower barrel section along the axial direction of the barrel body; a top tower barrel section is inserted into the basic barrel body, and along the axial direction, the top tower barrel section protrudes out of the basic barrel body to the side away from the barrel body, and the axial projections of the top tower barrel section, the basic barrel body and the end tower barrel section partially overlap; a connecting component is arranged in the overlapping area of the top tower barrel section, the basic barrel body and the end tower barrel section and connects the top tower barrel section, the basic barrel body and the end tower barrel section.

[0006] According to one aspect of an embodiment of the present application, the basic cylinder body includes a first cylinder body and a first protruding ring radially protruding from the first cylinder body along the cylinder body, the top tower cylinder section includes a second cylinder body and a second protruding ring radially protruding from the second cylinder body, the second cylinder body portion is inserted into the first cylinder body, the first protruding ring, the second protruding ring and the end tower cylinder section are axially stacked, and the connecting assembly is passed through the first protruding ring and the second protruding ring.

[0007] According to one aspect of the embodiment of the present application, the tower further includes a transition pad, which is clamped between the first convex ring and the second convex ring along the axial direction, and the connecting assembly is arranged through the transition pad.

[0008] According to one aspect of an embodiment of the present application, the connection assembly includes a connecting plate, multiple anchor bolts and fasteners. The connecting plate is arranged in the end tower section, and the multiple anchor bolts are distributed at intervals along the circumference of the tube body. The anchor bolts are connected to the connecting plate at one axial end, and the other end passes through the end tower section, the transition section and the top tower section and is fixed to the top tower section by fasteners.

[0009] According to one aspect of the embodiments of the present application, a gap is formed between the top tower barrel section and the adapter barrel section along the radial direction of the barrel body. The gap is filled with a connecting body, and the connecting body is fixedly connected to the top tower barrel section and the adapter barrel section.

[0010] According to one aspect of the embodiments of the present application, the adapter barrel section further includes a plurality of anchoring components. The foundation barrel has a wall portion, and a hollow cavity is formed by enclosing the wall portion. The wall portion includes an inner circumferential surface facing the hollow cavity and an outer circumferential surface facing away from the hollow cavity. Each anchoring component is disposed within the wall portion and penetrates the outer circumferential surface, and at least some of the plurality of anchoring components are sequentially distributed along the circumferential direction of the barrel body.

[0011] According to one aspect of the embodiments of the present application, at least some of the plurality of anchoring components are spaced apart axially.

[0012] According to one aspect of the embodiments of the present application, the orthographic projection of the outer circumferential surface of the foundation barrel in the axial direction is polygonal. The outer circumferential surface includes a plurality of side wall surfaces arranged successively. Each anchoring component penetrates two side wall surfaces spaced apart in the circumferential direction and abuts against the side wall surfaces respectively.

[0013] According to one aspect of the embodiments of the present application, the polygon formed by the orthographic projection of the plurality of anchoring components in the axial direction matches the shape of the orthographic projection of the outer circumferential surface of the foundation barrel in the axial direction.

[0014] According to one aspect of the embodiments of the present application, the anchoring component includes an anchoring beam, a cable anchor, and an anchoring clamp. The anchoring beam penetrates the outer circumferential surface, the cable anchor is connected to the anchoring beam, and the anchoring clamp presses against the outer circumferential surface and is arranged to tension the cable anchor.

[0015] According to one aspect of the embodiments of the present application, the barrel body further includes a plurality of auxiliary tower barrel sections. The plurality of auxiliary tower barrel sections are stacked axially on the side of the end tower barrel section away from the adapter barrel section. The tower also includes a prestressed cable. One end of the prestressed cable is fixed to the top tower barrel section, and the other end of the prestressed cable passes through the foundation barrel and the end tower barrel section and is used to connect to the wind turbine foundation. The prestressed cable is located outside at least one auxiliary tower barrel section.

[0016] According to one aspect of the embodiments of the present application, the end tower barrel section and the auxiliary tower barrel sections respectively include a concrete barrel, and the top tower barrel section includes a steel barrel.

[0017] In another aspect, according to the embodiments of the present application, a wind turbine generator is provided, including the above-mentioned tower.

[0018] In another aspect, according to an embodiment of the present application, an adapter cylinder section is provided, including: a basic cylinder body having a wall portion that encloses a hollow cavity. The wall portion includes an inner circumferential surface facing the hollow cavity and an outer circumferential surface facing away from the hollow cavity; an anchoring assembly, with multiple anchoring assemblies arranged inside the wall portion and penetrating through the outer circumference. At least some of the multiple anchoring assemblies are sequentially distributed along the outer circumferential surface.

[0019] According to another aspect of the embodiment of the present application, at least some of the multiple anchoring assemblies are spaced apart along the height direction of the basic cylinder body. The orthographic projection of the outer circumferential surface of the basic cylinder body in the height direction is polygonal. The outer circumferential surface includes a plurality of side wall surfaces arranged successively. Each anchoring assembly penetrates through two spaced-apart side wall surfaces and abuts against the side wall surfaces respectively.

[0020] According to the tower, wind turbine generator set, and adapter cylinder section provided by the embodiment of the present application, the tower includes a cylinder body, an adapter cylinder section, a top tower cylinder section, and a connecting assembly. The cylinder body can be used to connect to the wind turbine foundation. The basic cylinder body of the adapter cylinder section is stacked with the end tower cylinder section of the cylinder body along the axial direction of the cylinder body. The part of the top tower cylinder section protruding from the basic cylinder body is used to connect to components such as the nacelle. Since the top tower cylinder section is inserted into the basic cylinder body, and the orthographic projections of the top tower cylinder section, basic cylinder body, and end tower cylinder section overlap in the axial direction. At the same time, the connecting assembly is arranged in the overlapping area of the top tower cylinder section, basic cylinder body, and end tower cylinder section and connects the three, enabling the cylinder body, adapter cylinder section, and top tower cylinder section to form an integral whole to the greatest extent, making the overall stiffness of the tower high. And inserting the top tower cylinder section into the basic cylinder body can better transfer the bending moment and horizontal force received by the top tower cylinder section to the cylinder body through the adapter cylinder section, improving the effective transfer of loads and making the overall stress performance of the tower good. At the same time, the adapter cylinder section can also provide a tightening effect on the top tower cylinder section, limit the vibration during the operation of the top tower cylinder section, and minimize the adverse vibration impact to the greatest extent, making the safety performance of the tower high. Description of the Drawings

[0021] The features, advantages, and technical effects of the exemplary embodiments of the present application will be described below with reference to the drawings.

[0022] Figure 1 is a schematic structural diagram of a wind turbine generator set according to an embodiment of the present application

[0023] Figure 2 is a partial structural schematic diagram of a tower according to an embodiment of the present application;

[0024] Figure 3 is a partial cross-sectional view of the cooperation between an adapter tower section, a top tower cylinder section, and a cylinder body according to an embodiment of the present application;

[0025] Figure 4Is the front view of the partial structure of the tower in an embodiment of the present application

[0026] Figure 5 Is Figure 4 The sectional view along the A-A direction in

[0027] Figure 6 Is the top view of the tower in an embodiment of the present application.

[0028] Wherein:

[0029] 100 - Tower;

[0030] 10 - Cylinder body; 11 - End tower cylinder section; 111 - Third cylinder; 112 - Third convex ring; 12 - Auxiliary tower cylinder section;

[0031] 20 - Adapter cylinder section; 21 - Foundation cylinder; 21a - Hollow cavity; 211 - First cylinder; 212 - First convex ring; 213 - Inner peripheral surface; 214 - Outer peripheral surface; 214a - Side wall surface; 22 - Anchoring assembly; 221 - Anchoring beam; 222 - Anchor cable; 223 - Anchoring fixture; 23 - Support block;

[0032] 30 - Top tower cylinder section; 31 - Second cylinder; 32 - Second convex ring;

[0033] 40 - Connection assembly; 41 - Connection plate; 42 - Anchor bolt; 43 - Fastener;

[0034] 50 - Transition backing plate; 60 - Connection body; 70 - Prestressing cable;

[0035] X - Axial direction; Y - Circumferential direction; Z - Radial direction.

[0036] 200 - Machine nacelle; 300 - Generator; 400 - Impeller; 410 - Hub; 420 - Blade.

[0037] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale. Detailed implementation manners

[0038] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present application by showing examples of the present application. In the drawings and the following description, at least some of the well-known structures and technologies are not shown in order to avoid unnecessarily obscuring the present application; and, for clarity, the dimensions of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0039] The orientation terms appearing in the following description are all the directions shown in the figures, and do not limit the specific structures of the tower, wind turbine generator set, and adapter cylinder section of the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0040] As Figure 1 shown, an embodiment of the present invention provides a wind turbine generator set, including a wind turbine foundation, a tower 100, a nacelle 200, a generator 300, and an impeller 400. The tower 100 is connected to the wind turbine foundation, the nacelle 200 is arranged at the top of the tower 100, the generator 300 is arranged in the nacelle 200, and may be located inside the nacelle 200, or of course, may also be located outside the nacelle 200. The impeller 400 includes a hub 410 and a plurality of blades 420 connected to the hub 410. The impeller 400 is connected to the rotor of the generator 300 through its hub 410. When the wind acts on the blades 420, the entire impeller 400 and the rotor of the generator 300 are driven to rotate, so as to convert wind energy into electrical energy, thereby meeting the power generation requirements of the wind turbine generator set.

[0041] With the continuous increase in the single-unit capacity of wind turbine generator sets, the height of the tower 100 is continuously increasing, and the requirements for the overall structure of the tower 100 are getting higher and higher. In this trend, hybrid towers are favored in the industry due to their large stiffness, high height, and low cost.

[0042] However, the overall stiffness of the hybrid tower 100 in the related art is low, and its mechanical properties are poor, which affects the safety of the tower 100.

[0043] In order to solve the above technical problems, an embodiment of the present application also provides a tower 100, which can be used for the wind turbines provided in the above embodiments, and of course, can also be used for structures such as signal towers that need to support functional devices located at high places. In order to better understand the tower 100 provided in an embodiment of the present application, the following will be used as an example of its use in a wind turbine and as a component of a wind turbine for illustration. The tower 100 provided in an embodiment of the present application has high overall rigidity, good force performance, and high safety performance.

[0044] like Figure 2 as well as Figure 3 As shown, a tower 100 provided by an embodiment of the present application includes a barrel body 10, a transition barrel section 20, a top tower barrel section 30 and a connection assembly 40. The barrel body 10 includes an end tower barrel section 11, and the transition barrel section 20 includes a base barrel body 21. The base barrel body 21 is stacked with the end tower barrel section 11 along the axial direction X of the barrel body 10, and the top tower barrel section 30 is plugged into the base barrel body 21. Along the axial direction X, the top tower barrel section 30 is protruded from the base barrel body 21 to the side away from the barrel body 10, and the orthographic projections of the top tower barrel section 30, the base barrel body 21 and the end tower barrel section 11 on the axial direction X partially overlap. The connection assembly 40 is arranged in the overlapping area of the top tower barrel section 30, the base barrel body 21 and the end tower barrel section 11 and connects the top tower barrel section 30, the base barrel body 21 and the end tower barrel section 11.

[0045] The end tower section 11 of the barrel body 10 may include a concrete barrel section, the transition barrel section 20 may include a concrete barrel section, and the top tower barrel section 30 may include a metal barrel section. For example, a steel tower barrel section may be used.

[0046] The adapter barrel section 20 may be produced and sold as an independent product, or may be used in the tower 100 and serve as a component of the tower 100 .

[0047] Optionally, the orthographic projection of the inner circumference of the transition barrel section 20 in the axial direction X may be a circle, a polygon, etc., and when it is a polygon, it may be a regular polygon. The orthographic projection shape of the outer circumference of the top tower barrel section 30 may be the same as the orthographic projection shape of the inner circumference of the transition barrel section 20, and may be a circle, a polygon, etc., and when it is a polygon, it may be a regular polygon. Exemplarily, the orthographic projection shape of the outer circumference of the top tower barrel section 30 and the orthographic projection shape of the inner circumference of the transition barrel section 20 may both be circles, and the top tower barrel section 30 may be inserted into the accommodating cavity formed by the inner circumference of the transition barrel section 20.

[0048] The orthographic projection shape of the overlapping area of the top tower section 30, the basic cylinder 21 and the end tower section 11 in the axial direction X can be a circular ring shape or a plurality of arc strips distributed along the circumferential direction Y of the cylinder body 10.

[0049] The connecting component 40 includes, but is not limited to, columnar bodies such as connecting cables and connecting rods, and can pass through the overlapping parts of the top tower barrel section 30, the foundation barrel 21, and the end tower barrel section 11 along the axial direction X and connect and fix the three.

[0050] For the tower 100 provided in an embodiment of the present application, the barrel body 10 can be used to connect to a wind turbine foundation. The foundation barrel 21 of the transition barrel section 20 is stacked with the end tower barrel section of the barrel body 10 along the axial direction X of the barrel body 10. The part of the top tower barrel section 30 protruding from the foundation barrel 21 is used to connect to components such as the nacelle 200. Since the top tower barrel section 30 is inserted into the foundation barrel 21, and the orthographic projections of the top tower barrel section 30, the foundation barrel 21, and the end tower barrel section 11 in the axial direction X partially overlap, at the same time, the connecting component 40 is arranged in the overlapping area of the top tower barrel section 30, the foundation barrel 21, and the end tower barrel section 11 and connects the top tower barrel section 30, the foundation barrel 21, and the end tower barrel section 11. It can form an integral whole of the barrel body 10, the transition barrel section 20, and the top tower barrel section 30 to the greatest extent, making the overall stiffness of the tower 100 high.

[0051] Moreover, inserting the top tower barrel section 30 into the foundation barrel 21 can better transfer the bending moment and horizontal force received by the top tower barrel section 30 to the barrel body 10 through the transition barrel section 20, improving the effective transfer of loads and making the overall stress performance of the tower 100 good. At the same time, the transition barrel section 20 can also provide a tightening effect on the top tower barrel section 30, limit the vibration during the operation of the top tower barrel section 30, and minimize the adverse vibration effects to the greatest extent, making the safety performance of the tower 100 high. And this tower 100 can be applied to the design of a hybrid tower 100, and the improvement of stiffness is expected to make the tower 100 develop in the direction of higher height.

[0052] As Figures 2 to 5 shown, in some alternative embodiments, for the tower 100 provided in an embodiment of the present application, the foundation barrel 21 includes a first barrel 211 and a first convex ring 212 protruding from the first barrel 211 along the radial direction Z of the barrel body 10. The top tower barrel section 30 includes a second barrel 31 and a second convex ring 32 protruding from the second barrel 31 along the radial direction Z. Part of the second barrel 31 is inserted into the first barrel 211, and the first convex ring 212 and the second convex ring 32 are stacked in the axial direction X, and the connecting component 40 passes through the first convex ring 212 and the second convex ring 32.

[0053] The stacked arrangement mentioned above and below can be understood that the orthographic projections of two components at least partially overlap in the defined direction such as the axial direction X, and the two components can be in contact with each other. Of course, other components can also be clamped between the two, which can also be understood as the mentioned stacked arrangement.

[0054] The tower 100 provided by an embodiment of the present application, through the above settings, enables the top tower barrel section 30 to not only meet the functional requirement of being inserted into the interior of the foundation barrel 21, but also, the first convex ring 212 and the second convex ring 32 can be stacked and connected to the end tower barrel section 11 of the barrel body 10 through the connecting component 40, so that the top tower barrel section 30, the foundation barrel 21 and the end tower barrel section 11 can be in close contact in the axial direction X, and the overall connection strength after connection is high.

[0055] Meanwhile, the setting of the first convex ring 212 can also provide a limit for the insertion of the top tower barrel section 30 into the interior of the first barrel 211 along the axial direction X, reducing the assembly difficulty of the tower 100. Moreover, the above settings can reduce the span of the connecting component 40 in the axial direction X, and on the basis of ensuring the connection strength, the cost can also be reduced.

[0056] Optionally, the first convex ring 212 can be arranged on the side of the first barrel 211 facing the barrel body 10 in the axial direction X. Optionally, the first convex ring 212 and the end of the first barrel 211 facing the barrel body 10 in the axial direction X can be flush with each other.

[0057] Through the above settings, the entire foundation barrel 21 can be stacked with the end tower barrel section 11 of the barrel body 10, increasing the overlapping area of their orthographic projections in the axial direction X and ensuring the stability of the connection.

[0058] Optionally, the second convex ring 32 can be arranged on the side of the second barrel 31 facing the barrel body 10 in the axial direction X. Optionally, the second convex ring 32 and the end of the second barrel 31 facing the barrel body 10 in the axial direction X can be flush with each other.

[0059] Through the above settings, the entire top tower barrel section 30 can be stacked with the second convex ring 32 of the foundation barrel 21, and the overlapping area of the orthographic projections of the top tower barrel section 30 and the foundation barrel 21 in the axial direction X ensures the stability of the connection.

[0060] Meanwhile, by making the first convex ring 212 flush with the end of the first barrel 211 facing the barrel body 10 in the axial direction X, and the second convex ring 32 flush with the end of the second barrel 31 facing the barrel body 10 in the axial direction X, the extension length of the connecting component 40 connecting the top tower barrel section 30, the foundation barrel 21 and the end tower barrel section 11 in the axial direction X can be minimized, reducing the installation difficulty and cost.

[0061] In some optional embodiments, the first convex ring 212 and the first barrel 211 can be an integral structure. This is beneficial for forming and can ensure the connection strength between the two.

[0062] In some alternative embodiments, the second convex ring 32 and the second cylinder 31 may be an integral structure, which is beneficial for forming and can ensure the connection strength between the two.

[0063] In some alternative embodiments, the tower 100 further includes a transition backing plate 50. Along the axial direction X, the transition backing plate 50 is clamped between the first convex ring 212 and the second convex ring 32, and the connecting assembly 40 is disposed through the transition backing plate 50.

[0064] For the tower 100 provided by an embodiment of the present application, by providing the transition backing plate 50, the load borne by the second convex ring 32 can be dispersed to the first convex ring 212, effectively dispersing the local pressure and avoiding damage to the first convex ring 212 and the like caused by excessive local pressure, thereby improving the safety and service life of the tower 100.

[0065] In some alternative embodiments, the connecting assembly 40 includes a connecting plate 41, a plurality of anchor bolts 42, and a fastener 43. The connecting plate 41 is disposed inside the end tower cylinder section 11. The plurality of anchor bolts 42 are spaced apart along the circumferential direction Y of the cylinder body 10. One end of the anchor bolt 42 in the axial direction X is connected to the connecting plate 41, and the other end passes through the end tower cylinder section 11, the adapter cylinder section 20, and the top tower cylinder section 30 and is fixed to the top tower cylinder section 30 by the fastener 43.

[0066] The number of the anchor bolts 42 may be three, four or more, and can be specifically determined according to the radial Z dimension of the tower 100 and the connection strength requirements between the top tower cylinder section 30, the base cylinder 21, and the end tower cylinder section 11.

[0067] Optionally, the anchor bolt 42 may extend along the axial direction X. One end of the anchor bolt 42 may pass through the connecting plate 41 and be fixed to the connecting plate 41, and a locking structure such as a nut or an anchoring clip may be used for fixing. After the side of the anchor bolt 42 facing away from the connecting plate 41 passes through the end tower cylinder section 11 towards one end of the adapter cylinder section 20, the adapter cylinder section 20, and the top tower cylinder section 30, it may be fixed by the fastener 43. The fastener 43 includes, but is not limited to, nuts, anchoring clips, etc.

[0068] For the tower 100 provided by an embodiment of the present application, the connecting assembly 40 adopts the above structural form, which can not only ensure the connection strength requirements between the top tower cylinder section 30, the base cylinder 21, and the end tower cylinder section 11, but also make the connection between the top tower cylinder section 30, the base cylinder 21, and the end tower cylinder section 11 have uniform load-bearing capacity in the circumferential direction Y, thereby improving the safety of the tower 100.

[0069] Optionally, the connecting plate 41 is annular and fixed inside the end tower cylinder section 11. Through the above setting, the connection strength between the connecting plate 41 and the end tower cylinder section 11 can be ensured.

[0070] Optionally, the connecting plate 41 and the end tower barrel section 11 can be coaxially arranged to ensure that the anchor bolts 42 can be evenly distributed along the circumferential direction Y of the barrel body 10, thereby ensuring the uniformity of the load-bearing capacity of the tower 100.

[0071] In some alternative embodiments, the end tower barrel section 11 can include a third barrel body 111 and a third convex ring 112. The third convex ring 112 protrudes radially Z from the third barrel body 111, and the connecting plate 41 can be arranged on the third convex ring 112. Through the above arrangement, it is beneficial to the installation of the connecting plate 41.

[0072] Optionally, the third convex ring 112, the second convex ring 32, and the first convex ring 212 can be coaxially arranged with each other and partially overlap in the positive projection on the axial direction X. The connecting assembly 40 is inserted and connected to the third convex ring 112, the second convex ring 32, and the first convex ring 212.

[0073] Optionally, the third convex ring 112 can be arranged on the side of the third barrel body 111 facing the base barrel body 21 in the axial direction X. Optionally, the third convex ring 112 can be flush with one end of the third barrel body 111 facing the base barrel body 21 in the axial direction X.

[0074] Through the above arrangement, the base barrel body 21 as a whole can be stacked with the end tower barrel section 11 of the barrel body 10, increasing the overlapping area of their positive projections in the axial direction X and ensuring the stability of the connection.

[0075] In some alternative embodiments, an embodiment of the present application provides a tower 100. Along the radial direction Z of the barrel body 10, a gap is formed between the top tower barrel section 30 and the transition barrel section 20, and the gap is filled with a connecting body 60. The connecting body 60 is fixedly connected to the top tower barrel section 30 and the transition barrel section 20.

[0076] The connecting body 60 can be formed by being poured in a fluid form into the gap and then cured. Optionally, it can be formed by curing concrete slurry.

[0077] For the tower 100 provided by an embodiment of the present application, by arranging the connecting body 60, the outer circumference of the top tower barrel section 30 can be connected to the inner wall of the base barrel body 21, ensuring the coordinated deformation and effective transmission of loads between the two, and facilitating the transfer of the load of the top tower barrel section 30 to the transition barrel section 20. At the same time, the arrangement of the connecting body 60 can also seal the gap, preventing external rainwater and dust from entering the tower barrel, and improving the safety of the tower 100.

[0078] Such as Figures 2 to 6As shown, in some alternative embodiments, the adapter tube section 20 further includes a plurality of anchoring components 22. The base tube body 21 has a wall portion that encloses a hollow cavity 21a. The wall portion includes an inner peripheral surface 213 facing the hollow cavity 21a and an outer peripheral surface 214 facing away from the hollow cavity 21a. Each anchoring component 22 is disposed within the wall portion and penetrates through the outer peripheral surface 214. At least some of the plurality of anchoring components 22 are sequentially distributed along the circumferential direction Y of the tube body 10.

[0079] The top tower tube section 30 can be inserted into the hollow cavity 21a and a gap for forming a filling connection body 60 is formed between the top tower tube section 30 and the inner peripheral surface 213.

[0080] For the tower 100 provided in an embodiment of the present application, the adapter tube section 20 is provided with the anchoring components 22 and the connection relationship between the anchoring components 22 and the base tube body 21 is defined. Through the anchoring components 22, a circumferential pre-tightening force can be generated on the base tube body 21 along the circumferential direction Y. On the one hand, it can ensure that the adapter tube section 20 can tightly hold the top tower tube section 30 inside it. On the other hand, the vibration of the top tower tube section 30 can be effectively transmitted to the lower tube body 10.

[0081] It can be understood that the adapter tube section 20 provided in the above and below embodiments of the present application is used for the tower 100 and is a component of the tower 100. Of course, the adapter tube section 20 provided in the above and below embodiments can also be produced and sold as an independent product.

[0082] In some alternative embodiments, at least some of the plurality of anchoring components 22 are spaced apart along the axial direction X.

[0083] Through the above arrangement, the anchoring components 22 can generate a circumferential pre-tightening force at multiple points along the axial direction X. Further ensuring the tightening effect on the top tower tube section 30.

[0084] Exemplarily, the plurality of anchoring components 22 can be divided into multiple groups, each group includes more than three anchoring components 22, and the anchoring components 22 in the same group are distributed in the circumferential direction Y of the tube body 10.

[0085] In some alternative embodiments, the orthographic projection of the outer peripheral surface 214 of the base tube body 21 on the axial direction X is a polygon. The outer peripheral surface 214 includes a plurality of side wall surfaces 214a arranged successively. Each anchoring component 22 penetrates through two side wall surfaces 214a spaced apart in the circumferential direction Y and abuts against the side wall surfaces 214a respectively.

[0086] Optionally, the orthographic projection of the outer peripheral surface 214 of the base tube body 21 on the axial direction X can be a pentagon, hexagon, heptagon or other polygons. The spaced side wall surfaces 214a can be understood as two side wall surfaces 214a connected to the same side wall surface 214a.

[0087] By making the outer peripheral surface 214 of the base cylinder 21 polygonal, it is conducive to the installation and tensioning of the anchoring assemblies 22 distributed in the circumferential direction Y.

[0088] In some alternative embodiments, the polygon formed by the orthographic projection of the multiple anchoring assemblies 22 in the axial direction X can be made to match the shape of the orthographic projection of the outer peripheral surface 214 of the base cylinder 21 in the axial direction X.

[0089] Through the above arrangement, the base cylinder 21 can provide a tightening effect on the top tower cylinder section 30 on each surface, ensuring the force transmission requirements, and at the same time improving the overall anti-load capacity of the transition cylinder section 20.

[0090] Exemplarily, taking the shape of the orthographic projection of the outer peripheral surface 214 in the axial direction X as a hexagon as an example, for the tower 100 provided by an embodiment of the present application, the multiple anchoring assemblies 22 can be divided into three groups, each group including three anchoring assemblies 22. The three groups of anchoring assemblies 22 are spaced apart in the axial direction X. Two of the groups can be arranged on both sides of the base cylinder 21 in the axial direction X, and the remaining group can be located in the middle region or a region close to the middle of the base cylinder 21 in the axial direction X. The two groups of anchoring assemblies 22 located at both ends can be spaced apart and oppositely arranged in the axial direction X, and the group of anchoring assemblies 22 located in the middle region can be staggered from the two groups of anchoring assemblies 22 at both ends in the circumferential direction Y, so that the shape of the orthographic projection of the multiple anchoring assemblies 22 in the axial direction X is a hexagon.

[0091] In some alternative embodiments, the anchoring assembly 22 includes an anchoring beam 221, a cable 222, and an anchoring fixture 223. The anchoring beam 221 penetrates through the outer peripheral surface 214, the cable 222 is connected to the anchoring beam 221, and the anchoring fixture 223 presses against the outer peripheral surface 214 and is arranged to tension the cable 222. The anchoring assembly 22 adopts the above structural form, which is simple in structure and conducive to tensioning, thereby ensuring the tightening effect on the top tower cylinder section 30.

[0092] In some alternative embodiments, a support block 23 can also be provided on the transition cylinder section 20. The support block 23 is fixedly connected to the outer peripheral surface 214. Support blocks 23 are respectively provided at both ends of the cable 222. Each end of the cable 222 passes through the corresponding support block 23 and is fixed by the anchoring fixture 223. The anchoring fixture 223 can abut against the support block 23. Optionally, the surface of the support block 23 in contact with the anchoring fixture 223 can be made perpendicular to the extending direction of the cable 222, so that the anchoring fixture 223 can tension the cable 222 along the extending direction of the cable 222, ensuring the requirements for anchoring pre-tensioning.

[0093] Optionally, the support block 23 and the base cylinder 21 can be connected by welding or other means. Of course, an integral structure can also be adopted.

[0094] Continue to refer to Figures 2 to 6 As shown, in some alternative embodiments, for the tower 100 provided by an embodiment of the present application, the barrel body 10 further includes a plurality of auxiliary barrel sections 12. The plurality of auxiliary barrel sections 12 are stacked axially along the X-axis on the side of the end barrel section 11 away from the transition barrel section 20. The tower 100 further includes a prestressing cable 70. One end of the prestressing cable 70 is fixed to the transition barrel section 20, and the other end of the prestressing cable 70 passes through at least a part of the barrel body 10 and is used to connect to the wind turbine foundation. The prestressing cable 70 is located outside at least one auxiliary barrel section 12.

[0095] The number of the auxiliary barrel sections 12 included in the barrel body 10 can be two, three or more, which is specifically set according to the height requirement of the tower 100. A structure such as a grouting layer can be provided between two adjacent auxiliary barrel sections 12 for connection.

[0096] For the tower 100 provided by an embodiment of the present application, by providing a plurality of auxiliary barrel sections 12 in the barrel body 10 and simultaneously providing the prestressing cable 70, the height requirement of the tower 100 can be guaranteed. At the same time, the setting of the prestressing cable 70 further improves the connection strength between the top barrel section 30, the base cylinder 21 and the barrel body 10, enabling the entire tower structure to be compressed in the full cross-section, forming an integral stress structure and improving the safety of the tower 100.

[0097] Optionally, the prestressing cable 70 can include multiple groups, each group including multiple prestressing cables 70. The multiple groups of prestressing cables 70 are spaced apart in the circumferential direction Y of the barrel body 10. Through the above setting, the uniformity of the connection strength among the top barrel section 30, the base cylinder 21 and the barrel body 10 in the circumferential direction Y can be guaranteed.

[0098] Optionally, the multiple groups of prestressing cables 70 are arranged on the periphery of a plurality of anchoring assemblies 22 and are spaced apart in the circumferential direction Y of the barrel body 10. Through the above setting, multi-point connection among the top barrel section 30, the base cylinder 21 and the barrel body 10 can be achieved in the radial direction Z of the barrel body 10, ensuring the connection strength and improving the safety of the tower 100.

[0099] Optionally, when the polygon formed by the orthographic projection of a plurality of anchoring assemblies 22 in the axial direction X, the multiple groups of prestressing cables 70 can be arranged inside the polygon formed by the orthographic projection of the multiple anchoring assemblies 22 in the axial direction X, and each group of prestressing cables 70 is located at one vertex position of the orthographic projection of the polygon. Through the above setting, the space in the radial direction Z of each barrel section can be reasonably utilized, and the hoop tightening ability can be supplemented at the intersection of two adjacent anchoring assemblies 22 in the circumferential direction Y by each group of prestressing cables 70.

[0100] In some alternative embodiments, the end tower barrel section 11 and the auxiliary tower barrel section 12 each include a concrete cylinder, and the top tower barrel section 30 includes a steel cylinder.

[0101] The tower 100 provided by an embodiment of the present application can improve the overall performance of the tower 100 through the above settings. For example, it can improve its stiffness and height, and at the same time can reduce costs.

[0102] Although the present application has been described with reference to the preferred embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tower, characterized in that, include: The barrel body includes an end tower barrel section; The transition barrel section comprises a basic barrel body, wherein the basic barrel body is stacked with the end tower barrel section along the axial direction of the barrel body; A top tower barrel section is inserted into the base barrel body. Along the axial direction, the top tower barrel section protrudes out of the base barrel body toward the side away from the barrel body, and the orthographic projections of the top tower barrel section, the base barrel body and the end tower barrel section in the axial direction partially overlap. The connecting component is arranged in the overlapping area of the top tower barrel section, the basic barrel body and the end tower barrel section and connects the top tower barrel section, the basic barrel body and the end tower barrel section.

2. The tower according to claim 1, characterized in that, The basic cylinder body includes a first cylinder body and a first convex ring protruding from the first cylinder body in a radial direction of the cylinder body, the top tower cylinder section includes a second cylinder body and a second convex ring protruding from the second cylinder body in the radial direction, the second cylinder body is partially inserted into the first cylinder body, the first convex ring, the second convex ring and the end tower cylinder section are stacked in the axial direction, and the connecting assembly is passed through the first convex ring and the second convex ring.

3. The tower according to claim 2, characterized in that, The tower frame further comprises a transition pad, which is clamped by the first convex ring and the second convex ring along the axial direction, and the connecting assembly is arranged through the transition pad.

4. The tower according to claim 2, characterized in that, The connection assembly includes a connection plate, multiple anchor bolts and fasteners. The connection plate is arranged in the end tower barrel section. The multiple anchor bolts are distributed at intervals along the circumference of the barrel body. The anchor bolts are connected to the connection plate at one end in the axial direction, and the other end passes through the end tower barrel section, the transition barrel section and the top tower barrel section and is fixed to the top tower barrel section through the fasteners.

5. The tower according to claim 1, characterized in that, Along the radial direction of the barrel body, a gap is formed between the top tower barrel section and the transition barrel section, and a connector is filled in the gap. The connector is fixedly connected to the top tower barrel section and the transition barrel section.

6. The tower according to any one of claims 1 to 5, characterized in that, The transition barrel section also includes a plurality of anchor assemblies. The basic barrel body has a wall portion, which encloses a hollow cavity. The wall portion includes an inner circumferential surface arranged toward the hollow cavity and an outer circumferential surface arranged away from the hollow cavity. Each of the anchor assemblies is arranged in the wall portion and passes through the outer circumferential surface. At least a portion of the plurality of anchor assemblies are distributed sequentially along the circumference of the barrel body.

7. The tower according to claim 6, characterized in that, At least some of the anchor assemblies among the plurality of anchor assemblies are spaced apart along the axial direction.

8. The tower according to claim 6, characterized in that, The orthographic projection of the outer circumferential surface of the base cylinder in the axial direction is polygonal, and the outer circumferential surface includes a plurality of side walls arranged successively, and each of the anchoring components passes through two of the side walls arranged at intervals in the circumferential direction and abuts against the side walls respectively.

9. The tower according to claim 6, characterized in that, The polygon formed by the orthographic projections of the plurality of anchoring assemblies in the axial direction matches the orthographic projection shape of the outer peripheral surface of the base cylinder in the axial direction.

10. The tower according to claim 6, characterized in that, The anchoring assembly comprises an anchoring beam, an anchor cable and an anchoring clamp. The anchoring beam is arranged to penetrate the outer peripheral surface, the anchor cable is connected to the anchoring beam, and the anchoring clamp is pressed against the outer peripheral surface and tensions the anchor cable.

11. The tower according to claim 6, characterized in that, The cylinder body further includes a plurality of auxiliary tower cylinder segments, and the plurality of auxiliary tower cylinder segments are stacked axially on a side of the end tower cylinder segment away from the adapter cylinder segment. The tower further includes a prestressed cable, one end of the prestressed cable is fixed to the top tower cylinder segment, and the other end of the prestressed cable passes through the foundation cylinder and the end tower cylinder segment and is used to connect to the wind turbine foundation. The prestressed cable is located outside at least one of the auxiliary tower cylinder segments.

12. The tower according to claim 11, characterized in that The end tower cylinder segment and the auxiliary tower cylinder segments each include a concrete cylinder, and the top tower cylinder segment includes a steel cylinder.

13. A wind turbine generator, characterized in that, Comprising: The tower according to any one of claims 1 to 12.

14. A transfer tube section, characterized in that, Comprising: A foundation cylinder having a wall portion that encloses a hollow cavity. The wall portion includes an inner circumferential surface facing the hollow cavity and an outer circumferential surface facing away from the hollow cavity. An anchoring assembly, and a plurality of the anchoring assemblies are arranged in the wall portion and penetrate through the outer circumference. At least some of the plurality of anchoring assemblies are sequentially distributed along the outer circumferential surface.

Images