CN114635829A

CN114635829A - Tower section, tower and wind generating set

Info

Publication number: CN114635829A
Application number: CN202011481360.XA
Authority: CN
Inventors: 侯赛恩·山诺瓦; 郝华庚
Original assignee: Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Current assignee: Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2022-06-17

Abstract

The invention relates to a tower section, a tower and a wind generating set, wherein the tower section comprises: the barrel comprises a barrel body, wherein the barrel body is annular as a whole and comprises linear parts and convex parts which are alternately arranged in the circumferential direction of the barrel body, the adjacent linear parts and the adjacent convex parts are connected with each other, and the convex parts at least partially protrude from the linear parts in the radial direction of the barrel body; and the two ends of the cylinder body in the axial direction of the cylinder body are respectively connected with the end flanges. The tower formed by the tower barrel section provided by the embodiment of the invention can meet the load requirement, and meanwhile, the material usage amount is small and the cost is low.

Description

Tower section, tower and wind generating set

Technical Field

The invention relates to the technical field of wind power, in particular to a tower section, a tower frame and a wind generating set.

Background

With the development and progress of wind power technology, the technical route is changed from extensive type to fine type, more lean design is more and more important, and the tower is used as a large component of a wind generating set and is an important component of the set in service.

The tower mainly serves to support heavy components such as a cabin, a generator and an impeller of the wind generating set, and therefore, the bearing capacity of the tower is one of important factors for ensuring the safety performance of the wind generating set. The cross section of the corresponding tower section of the existing tower is mostly a smooth circular cross section, and although the existing tower can meet the load requirement of the tower, the existing tower also has the defects of large material consumption and high cost.

Therefore, a new tower section, tower and wind turbine generator set are needed.

Disclosure of Invention

The embodiment of the invention provides a tower section, a tower and a wind generating set.

In one aspect, an embodiment of the present invention provides a tower segment, including: the barrel comprises a barrel body, wherein the barrel body is annular as a whole and comprises linear parts and convex parts which are alternately arranged in the circumferential direction of the barrel body, the adjacent linear parts and the adjacent convex parts are connected with each other, and the convex parts at least partially protrude from the linear parts in the radial direction of the barrel body; the two ends of the cylinder body in the axial direction of the cylinder body are respectively connected with the end flanges.

According to one aspect of the embodiment of the present invention, the straight portions of the cartridge body are identical in structure and are circumferentially spaced; and/or the projections of the barrel body are identical in structure and are distributed at intervals in the circumferential direction.

According to an aspect of an embodiment of the invention, an orthographic projection of the projection in the axial direction extends along a curved trajectory, the curved trajectory comprising an arc-shaped segment.

According to an aspect of the embodiment of the present invention, an orthogonal projection of the projection in the axial direction extends along a polygonal line locus, the polygonal line locus includes a first line segment and a second line segment which are arranged to intersect, an end of the first line segment remote from the second line segment is connected to an orthogonal projection of one of the linear portions arranged adjacent to the projection, and an end of the second line segment remote from the first line segment is connected to an orthogonal projection of the other linear portion arranged adjacent to the projection.

According to one aspect of the embodiment of the invention, the drum body is circumferentially provided with more than two tower drum segments, each tower drum segment comprises linear parts and convex parts which are alternately arranged, the end flange is circumferentially provided with more than two flange units, two ends of each tower drum segment in the axial direction are respectively connected with the flange units and form segment assemblies together, each tower drum segment further comprises a vertical flange group, and every two adjacent segment assemblies are connected through the vertical flange group in the circumferential direction.

According to one aspect of the embodiment of the invention, the vertical flange group is provided with a mounting section and a transition section, the mounting section is arranged at least one axial end of the transition section, and the thickness of the mounting section in the radial direction is larger than that of the transition section in the radial direction.

According to one aspect of the embodiment of the invention, the flange unit comprises arc-shaped flange sections and connecting sections arranged on the arc-shaped flange sections in a stacked mode, the connecting sections are connected with the tower drum in a split mode, the arc-shaped flange sections are spaced from each other in the circumferential direction, a first connecting body is arranged between every two adjacent arc-shaped flange sections and connected with each other through the first connecting body, an accommodating groove is formed in the vertical flange group, and at least part of the connecting sections are accommodated in the accommodating groove and connected with the vertical flange group.

According to one aspect of the embodiment of the invention, the vertical flange group comprises a first vertical flange and a second vertical flange which are arranged oppositely in the circumferential direction and connected with each other, the first vertical flange is connected with one of the two adjacent slicing assemblies, the second vertical flange is connected with the other one of the two adjacent slicing assemblies, and the first vertical flange and the second vertical flange are both provided with accommodating grooves.

According to an aspect of the embodiment of the present invention, the first vertical flange protrudes in the circumferential direction from the connected connecting section, the second vertical flange protrudes in the circumferential direction from the connected connecting section, and the first vertical flange and the second vertical flange are butted against each other in the circumferential direction.

According to one aspect of the embodiment of the invention, a first gap is arranged at the joint of the first vertical flange and the second vertical flange, a second connector is arranged in the first gap, and the vertical flange group and the end flange are connected with each other through the second connector.

According to an aspect of the embodiment of the invention, a second gap is formed at a butt joint of the connecting segment and the tower section, a third connector is arranged in the second gap, and the connecting segment and the tower section are connected through the third connector.

In another aspect, a tower is provided according to an embodiment of the invention, comprising the above-described tower section.

In yet another aspect, a wind turbine generator set is provided according to an embodiment of the invention, comprising the tower described above.

According to the tower cylinder section, the tower frame and the wind generating set provided by the embodiment of the invention, the tower cylinder section comprises the cylinder body and the end flanges, the two ends of the cylinder body in the axial direction of the cylinder body are respectively connected with the end flanges, and the arrangement of the end flanges is favorable for the connection requirement between the tower cylinder section and the tower cylinder section which is adjacently arranged when the tower frame is formed. Because the whole section of thick bamboo body is cyclic annular and including the straight line portion and the bulge of alternative setting in self circumference, adjacent straight line portion and the bulge interconnect that sets up, the bulge is at least partly protrusion in the radial of section of thick bamboo body and is set up in straight line portion, promptly, can make the wall portion of section of thick bamboo body be the structural style of unsmooth distribution, the bending rigidity of effectual increase tower section of thick bamboo section for the rigidity of the pylon that tower section of thick bamboo section formed is higher, for prior art, under the equal load-carrying capacity requirement, the material use amount is littleer, low cost.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a wind turbine generator system according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a tower according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a tower section according to one embodiment of the present invention;

FIG. 4 is a schematic view of the mating of the cartridge body and end flange of one embodiment of the present invention;

FIG. 5 is an enlarged view at A in FIG. 4;

FIG. 6 is a partial block diagram of the mating of the cartridge body and end flange of one embodiment of the present invention;

FIG. 7 is a partial block diagram of the mating of the cartridge body and end flange of another embodiment of the present invention;

FIG. 8 is a schematic structural view of an end flange of an embodiment of the present invention;

FIG. 9 is a schematic structural view of a cartridge body of yet another embodiment of the present invention;

FIG. 10 is a schematic view of the mating of the cartridge body to the vertical flange set according to one embodiment of the present invention;

FIG. 11 is a schematic view of the mating of an end flange to a vertical flange set in accordance with one embodiment of the present invention;

FIG. 12 is a schematic partial structural view of a tower section in accordance with yet another embodiment of the present invention;

FIG. 13 is a schematic partial structural view of a tower section in accordance with yet another embodiment of the present invention;

FIG. 14 is a schematic view of a partial structure of a tower section according to yet another embodiment of the present invention;

FIG. 15 is a partial block diagram of the mating of an end flange to a tower section according to an embodiment of the present disclosure;

FIG. 16 is a partial block diagram of an end flange engaged with a tower segment according to another embodiment of the present disclosure.

1-a tower;

100-tower section;

10-a cartridge body; 11-a straight portion; 12-a projection; 121 — a first line segment; 122-a second line segment; 10 a-tower section;

20-end flange; 21-a flange unit; 211-an arcuate flange section; 212-a connecting segment; 22-a first linker; 20 a-a flange body; 20 b-a connecting ring;

30-vertical flange group; 30 a-a mounting section; 30 b-a transition section; 30 c-a holding tank; 31-a first vertical flange; 32-a second vertical flange; 33-a second linker;

40-a third linker;

x-circumferential direction; y-axis direction; z-radial;

2-a cabin; 3, a generator; 4-an impeller; 401-a hub; 402-blade.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The following description is given with the directional terms in the drawings and are not intended to limit the specific construction of the tower sections, towers and wind turbine generator systems of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

For a better understanding of the invention, a detailed description is given below with reference to fig. 1 to 16 for a tower section, a tower and a wind park according to an embodiment of the invention.

As shown in fig. 1, an embodiment of the present invention provides a wind turbine generator system, which includes a tower 1, a nacelle 2, a generator 3, and an impeller 4. The nacelle 2 is disposed at the top end of the tower 1, and the generator 3 is disposed at the nacelle 2. in some examples, the generator 3 may be located outside the nacelle 2, but in some embodiments, the generator 3 may also be disposed inside the nacelle 2. The impeller 4 comprises a hub 401 and a plurality of blades 402 connected to the hub 401, the impeller 4 being connected to the rotor of the generator 3 via its hub 401. When wind acts on the blades 402, the whole impeller 4 and the rotor of the generator 3 are driven to rotate relative to the stator, and the power generation requirement of the wind generating set is further met.

The main function of the tower 1 is to support the nacelle 2, the generator 3 and the impeller 4 of the wind turbine generator system, and therefore, the load-bearing capacity of the tower 1 is one of the important factors for ensuring the safety performance of the wind turbine generator system. In the existing tower 1, the cross section of the tower section corresponding to the existing tower 1 is mostly a smooth circular cross section, and if the bearing requirement is satisfied, the wall thickness of the tower body needs to be set thicker, so that the defects of large material usage amount and high cost exist. In addition, the structural form of the tower drum section is limited by the process during molding, and the tower drum section is formed by splicing a plurality of drum sections in the axial direction, so that the number of circumferential welding seams is large, the integral rigidity of the tower drum section is influenced, and the process is complex.

In view of the above problem, as shown in fig. 2, the embodiment of the present invention provides a tower frame 1, where the tower frame 1 includes a plurality of tower sections 100 arranged in a stacked manner, and at least one tower section 100 is a new type tower section, so that the tower frame 1 as a whole can meet the load requirement, and at the same time, the material usage is small and the cost is low.

As shown in fig. 3 to 5, the tower segment 100 provided by the embodiment of the invention includes a cylinder body 10 and an end flange 20, the cylinder body 10 is annular as a whole and includes linear portions 11 and protruding portions 12 alternately arranged in a circumferential direction X of the cylinder body, the adjacent linear portions 11 and protruding portions 12 are connected to each other, and the protruding portions 12 are at least partially arranged to protrude from the linear portions 11 in a radial direction Z of the cylinder body 10. The cartridge body 10 has end flanges 20 connected to both ends thereof in the axial direction Y.

Embodiments of the present invention provide a tower section 100, and the arrangement of the end flange 20 facilitates the connection requirement between the tower section 100 and the adjacent tower section 100 when the tower section 100 is used to form the tower 1. Because the whole barrel body 10 is annular and comprises the linear parts 11 and the convex parts 12 which are alternately arranged in the circumferential direction X, the linear parts 11 and the convex parts 12 which are adjacently arranged are connected with each other, and the convex parts 12 are at least partially arranged to protrude out of the linear parts 11 in the radial direction Z of the barrel body 10, namely, the wall part of the barrel body 10 is in a structural form of concave-convex distribution, the bending rigidity of the tower barrel section 100 is effectively increased, the rigidity of the tower frame 1 formed by the tower barrel section 100 is higher, compared with the prior art, under the requirement of the same load bearing capacity, the material usage amount is smaller, and the cost is low.

As an alternative implementation, the tower segment 100 provided by the embodiment of the present invention may have the number of the linear portions 11 and the number of the protruding portions 12 on the cylinder body 10 set according to the radial Z dimension and the load-bearing capacity requirement of the tower segment 100. In some alternative embodiments, the number of the linear portions 11 and the number of the convex portions 12 may be the same.

In some embodiments, the protruding portion 12 may be disposed to protrude inward from the linear portion 11 in the radial direction Z, and of course, in some embodiments, the protruding portion 12 may be disposed to protrude outward from the linear portion 11 in the radial direction Z, and may be particularly disposed according to the load-bearing strength.

In some optional embodiments, the straight portions 11 of the cylinder body 10 have the same structure and are distributed at intervals in the circumferential direction X, so that the processing and forming of the cylinder body 10 are facilitated, and the bearing capacity of the cylinder body 10 in the circumferential direction X can be uniform.

In some optional embodiments, the projections 12 of the cartridge body 10 are identical in structure and are distributed at intervals in the circumferential direction X, so that the above arrangement is favorable for processing and forming the cartridge body 10, and is more favorable for ensuring the uniformity of the bearing capacity of the cartridge body 10 in each circumferential direction X. Not only can the load carrying capacity of the whole tower barrel section 100 be increased, but also materials can be better saved compared with the prior art.

In some alternative embodiments, the orthographic projection of the projection 12 in the axial direction Y extends along a curved trajectory, the curved trajectory comprising an arc-shaped segment. Illustratively, the curved segment included in the curved trajectory may be a circular segment. The arc segments included in some embodiments may also be elliptical arc segments.

In an alternative embodiment, the curved track may include one arc segment, and both ends of the arc segment may be respectively connected to the orthographic projection of one of the straight portions 11. Alternatively, the arc segment may protrude from the projection of the adjacent straight line portion 11 in the radial direction Z outward or in the axial direction away from the cartridge body 10, and in some examples, the arc segment may also protrude from the projection of the adjacent straight line portion 11 in the radial direction Z inward or in the axial direction close to the cartridge body 10.

It will be appreciated that defining the curved path to include a single number of arc segments is an alternative embodiment. In some other examples, the curved track may also be defined to include three arc segments, and the three arc segments may be connected in sequence and simultaneously protrude inwards or outwards from the projection of the adjacent straight line part 11. Of course, as shown in fig. 6, when the number of the arc segments included in the curved track is three, a part of the arc segments may be projected inward and protrude out of the straight portion 11, and a part of the arc segments may be projected outward and protrude out of the straight portion 11, as long as the forming of the tower cylinder segment 100 is facilitated and the requirement of the bearing capacity of the tower cylinder segment 100 is met.

It will be appreciated that the orthographic projection of the projections 12 in the axial direction Y extends along a curved trajectory is only an alternative embodiment. As shown in fig. 7, in some embodiments, the orthographic projection of the projection 12 in the axial direction Y may also be made to extend along a broken line trajectory. Through the arrangement, the wall of the cylinder body 10 can be in a concave-convex distribution structure, the bending rigidity of the tower cylinder section 100 is effectively increased, and the rigidity of the tower 1 formed by the tower cylinder section 100 is higher.

As an optional implementation, the polygonal line locus may include a first line segment 121 and a second line segment 122 disposed to intersect, and optionally, one ends of the first line segment 121 and the second line segment 122 close to each other may intersect, one end of the first line segment 121 far from the second line segment 122 is connected to an orthographic projection of one of the linear portions 11 disposed adjacent to the protrusion 12, and one end of the second line segment 122 far from the first line segment 121 is connected to an orthographic projection of the other linear portion 11 disposed adjacent to the protrusion 12. The stiffness requirement of the tower section 100 is met, so that the formed tower 1 has higher load bearing capacity.

In the tower segment 100 provided by the embodiment of the invention, no matter the extending track of the orthographic projection of the convex part 12 in the axial direction Y extends along a curved track or a broken line track, the linear part 11 and the convex part 12 are alternately arranged, so that the tower segment is not limited by equipment for manufacturing a whole circular tower, and the length of the tower segment in the axial direction Y can be longer than that of the common circular tower segment 100 in the prior art during manufacturing, thereby reducing the number of circumferential welding seams, and reducing the processing difficulty and cost.

As shown in FIG. 8, as an alternative embodiment, the tower segment 100 of the present invention may include an end flange 20 that includes a flange body 20a and a connecting ring 20b stacked with the flange body 20a in the axial direction Y, wherein the end flange 20 is connected to the cylinder body 10 through the connecting ring 20 b.

As shown in fig. 9 and 10, in some optional embodiments, the tower segment 100 provided in the embodiments of the present invention may include more than two tower segments 10a in the circumferential direction X of the tower body 10, each tower segment 10a includes linear portions 11 and protruding portions 12 alternately arranged, the end flange 20 includes more than two flange units 21 in the circumferential direction X, both ends of each tower segment 10a in the axial direction Y are respectively connected with the flange units 21 and together form a segment assembly, and the tower segment 100 further includes a vertical flange group 30, and in the circumferential direction X, two adjacent segment assemblies are connected by the vertical flange group 30.

According to the tower cylinder section 100 provided by the embodiment of the invention, the tower cylinder section 100 comprises more than two slicing assemblies which are connected through the vertical flange assembly 30, so that the tower cylinder section 100 can be sliced when the radial size of the tower cylinder section is overlarge, and the transportation is convenient.

As shown in fig. 11, in some alternative embodiments, the flange unit 21 includes an arc-shaped flange section 211 and a connecting section 212 stacked on the arc-shaped flange section 211, the arc-shaped flange sections 211 of the respective flange units 21 together form the flange body 20a, and the connecting sections 212 of the respective flange units 21 together form the connecting ring 20 b.

As shown in fig. 9 to 12, alternatively, the connecting segment 212 of each flange unit 21 is connected to the tower segment 10a, the arc-shaped flange segments 211 are spaced from each other in the circumferential direction X, the first connecting body 22 is disposed between two adjacent arc-shaped flange segments 211 and connected to each other by the first connecting body 22, the vertical flange set 30 is provided with a receiving groove 30c, and the connecting ring 20a is received in the receiving groove 30 c. Alternatively, the connection segment 212 of the connection ring 20a may be at least partially received in the receiving groove 30c and connected to the vertical flange set 30. In the tower segment 100 provided by the embodiment of the present invention, the accommodating groove 30c is arranged to avoid the connecting ring 20a or the connecting segment 212, so as to avoid interference, and the operation is convenient, so as to ensure the connection requirement between the vertical flange group 30 and the end flange 20.

Alternatively, two adjacent arc-shaped flange sections 211 may be connected to each other by welding, and the first connecting body 22 may be solidified solder.

Alternatively, the connecting section 212 and the vertical flange set 30 may also be connected to each other by welding, a gap is formed between the connecting section 212 and a groove wall enclosing the accommodating groove 30c, and a connecting structure may be disposed in the gap, and the connecting structure may be solidified solder.

As an optional implementation manner, the vertical flange group 30 includes a first vertical flange 31 and a second vertical flange 32 that are oppositely disposed in the circumferential direction X and are connected to each other, the first vertical flange 31 is connected to one of the two adjacent slice assemblies, the second vertical flange 32 is connected to the other of the two adjacent slice assemblies, and the first vertical flange 31 and the second vertical flange 32 are both provided with receiving grooves 30 c. The first vertical flange 31 and the second vertical flange 32 may be connected to the corresponding tower segment 10a by welding, and the first vertical flange 31 and the second vertical flange 32 may be detachably connected to each other by fasteners such as bolts. By providing the accommodating grooves 30c on the first vertical flange 31 and the second vertical flange 32, the first vertical flange 31 and the second vertical flange 32 can respectively avoid the connecting section 212 of the flange unit 21 and can be connected with the flange unit 21.

As an optional implementation manner, the first vertical flange 31 and the second vertical flange 32 may be disposed to protrude from the barrel body 10 toward the inside of the barrel body 10 in the radial direction Z, and respective flange holes of the first vertical flange 31 and the second vertical flange 32 may be disposed inside the barrel body 10, so as to facilitate connection and later maintenance. Of course, this is an optional implementation manner, in some embodiments, the first vertical flange 31 and the second vertical flange 32 may also be disposed to protrude from the barrel body 10 to the outside of the barrel body 10 in the radial direction Z, and respective flange holes may be disposed on the outside of the barrel body 10, or the first vertical flange 31 and the second vertical flange 32 may be disposed to protrude from the barrel body 10 on the inside and the outside of the barrel body 10, and may be disposed to have flange holes on the inside and the outside thereof, respectively, so that the first vertical flange 31 and the second vertical flange 32 are connected by fasteners such as bolts on the inside and the outside of the barrel body 10, as long as the requirement of splicing between the slice assemblies can be met.

In some alternative embodiments, the tower segment 100 provided by the present invention has the vertical flange set 30 having the mounting segment 30a and the transition segment 30b, the transition segment 30b is provided with the mounting segment 30a at least one end in the axial direction Y, and the thickness of the mounting segment 30a in the radial direction Z is greater than that of the transition segment 30b in the radial direction Z. Through the arrangement, the stress of the vertical flange group 30 is more facilitated. Optionally, the mounting sections 30a may be disposed at both ends of the transition section 30b in the axial direction Y, and since the thickness of the mounting sections 30a is relatively large, the connection requirement between the mounting sections and the end flange 20 can be ensured, and the influence of the strength loss caused by the provision of the accommodating groove 30c on the overall rigidity of the tower segment can be reduced.

Optionally, the first vertical flange 31 and the second vertical flange 32 may each have a mounting section 30a and a transition section 30b, so that they can be aligned and connected with each other in the circumferential direction X when connected, and optimize the load-bearing capacity requirement of the vertical flange set 30.

With continued reference to fig. 12, in some alternative embodiments, the first vertical flange 31 may be circumferentially X aligned with the end surface of the attached connector segment 212 and the second vertical flange 32 may be circumferentially X aligned with the end surface of the attached connector segment 212.

As shown in fig. 13, in some other embodiments, the first vertical flange 31 may protrude from the connected connecting section 212 in the circumferential direction X, the second vertical flange 32 may protrude from the connected connecting section 212 in the circumferential direction X, and the first vertical flange 31 and the second vertical flange 32 may abut against each other in the circumferential direction X. Through the arrangement, after the slicing assemblies are sequentially spliced to form the tower cylinder section 100, the adjacent slicing assemblies are better in sealing performance on the basis of ensuring the connection requirements.

As shown in fig. 14, in some alternative embodiments, a first gap is provided at the joint of the first vertical flange 31 and the second vertical flange 32, a second connector 33 is provided in the first gap, and the vertical flange group 30 and the end flange 20 are connected to each other through the second connector 33. Through the arrangement, the connection strength and the sealing requirements of the two adjacent sub-assembly when the two sub-assemblies are spliced through the vertical flange group 30 can be guaranteed.

For example, the first vertical flange 31 may protrude from the connected connecting section 212 in the circumferential direction X, the second vertical flange 32 may protrude from the connected connecting section 212 in the circumferential direction X, and a first gap provided at the interface between the first vertical flange 31 and the second vertical flange 32 may be formed by starting from the end of the first vertical flange 31 and the second vertical flange 32 facing the end flange 20 side in the axial direction Y and extending in the axial direction Y, so that the second connecting body 33 may be opposite to and formed as a single body with the first connecting body 22. Make adjacent arc flange section 211 when interconnect such as through soldering tin, can erect flange 32 to first perpendicular flange 31 and second simultaneously and connect for soldering tin flows to first breach, on the basis that satisfies the concatenation demand, improves tower section of thick bamboo 100's concatenation shaping efficiency.

As shown in fig. 15 and 16, optionally, since the barrel body 10 includes the linear portions 11 and the protruding portions 12 which are alternately arranged, in order to ensure the connection strength between the connection ring 20b and the barrel body 10, a second notch may be optionally arranged at the interface between the connection section 212 of the connection ring 20b and the barrel body 10, a third connection body 40 is arranged in the second notch, and the connection section 212 and the tower segment 10a are connected by the third connection body 40. The transition can be connected in the mode that can utilize the welding to polish to the setting of second breach, and the both sides welding seam can be melted through, also can select not to melt through as required, and third connector 40 can guarantee the joint strength between end flange 20 and a section of thick bamboo body 10 through the aforesaid setting including the soldering tin after the solidification, guarantees the security performance of tower section of thick bamboo section 100.

Optionally, the joint between the inner side of the barrel body 10 in the radial direction Z and the connecting section 212 of the connecting ring 20b and the joint between the outer side of the barrel body 10 in the radial direction Z and the connecting section 212 are respectively provided with a second notch, so as to further ensure the connection strength therebetween.

Illustratively, when the barrel body 10 includes more than two tower segments 10a and the end flange 20 includes more than two flange units 21, a second gap may be respectively disposed at the joint of the connecting segments 212 and the tower segments 10a, and a third connecting body 40 may be disposed in the second gap, so that each connecting segment 212 is connected with the third connecting body 40.

According to the tower barrel section 100 provided by the embodiment of the invention, the wall part of the barrel body 10 is in a concave-convex distribution structure form, so that the bending rigidity of the tower barrel section 100 is effectively increased, the rigidity of the tower frame 1 formed by the tower barrel section 100 is higher, and compared with the prior art, under the requirement of the same load bearing capacity, the material usage amount is smaller, and the cost is low. In addition, the arrangement mode enables the tower to be free from the limitation of forming equipment, the length of the tower in the axial direction Y is longer than that of the common annular tower tube section 100 in the prior art, the number of circumferential welding seams is reduced, and the processing difficulty and cost are reduced.

In the tower 1 provided in the embodiment of the present invention, some of the two or more tower sections 100 may adopt the tower sections 100 provided in the above embodiments, and of course, all the tower sections 100 may adopt the tower sections 100 provided in the above embodiments.

The tower 1 may include tower segments 100 in the form of a complete ring or in the form of segments in the circumferential direction X, for example, the lower tower segment 100 with a larger radial dimension may be in the form of a segment, and the upper tower segment 100 with a smaller radial dimension may be in the form of a complete ring. Because the tower 1 includes the tower segment 100 provided in the above embodiments, the material usage is smaller and the cost is lower than the prior art under the same load carrying capacity requirement. The wind generating set applied by the wind generating set has the advantages of low cost and good generating benefit.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A tower segment (100), comprising:

the barrel comprises a barrel body (10), wherein the barrel body (10) is annular as a whole and comprises linear parts (11) and protruding parts (12) which are alternately arranged in the circumferential direction (X), the linear parts (11) and the protruding parts (12) which are adjacently arranged are mutually connected, and the protruding parts (12) are at least partially arranged in a manner of protruding from the linear parts (11) in the radial direction (Z) of the barrel body (10);

the two ends of the cylinder body (10) in the axial direction (Y) are respectively connected with the end flanges (20).

2. The tower segment (100) of claim 1, characterized in that each of the rectilinear portions (11) of the drum body (10) is structurally identical and is spaced apart in the circumferential direction (X); and/or the projections (12) of the cylinder body (10) have the same structure and are distributed at intervals in the circumferential direction (X).

3. The tower segment (100) of claim 1, wherein an orthographic projection of the protrusions (12) in the axial direction (Y) extends along a curvilinear path that includes arcuate segments.

4. The tower segment (100) of claim 1, characterised in that the orthographic projection of the projection (12) in the axial direction (Y) extends along a broken line trajectory comprising a first line segment (121) and a second line segment (122) arranged in an intersecting manner, the end of the first line segment (121) remote from the second line segment (122) being connected to the orthographic projection of one of the rectilinear portions (11) arranged adjacent to the projection (12), and the end of the second line segment (122) remote from the first line segment (121) being connected to the orthographic projection of the other rectilinear portion (11) arranged adjacent to the projection (12).

5. The tower segment (100) according to any one of claims 1 to 4, wherein the drum body (10) has more than two tower segments (10a) in the circumferential direction (X), each tower segment (10a) comprises the linear portions (11) and the protruding portions (12) which are alternately arranged, the end flange (20) has more than two flange units (21) in the circumferential direction (X), both ends of each tower segment (10a) in the axial direction (Y) are respectively connected with the flange units (21) and together form a segment assembly, and the tower segment (100) further comprises a vertical flange group (30), and two adjacent segment assemblies are connected by the vertical flange group (30) in the circumferential direction (X).

6. The tower segment (100) of claim 5, characterised in that the vertical flange group (30) has a mounting segment (30a) and a transition segment (30b), the transition segment (30b) being provided with the mounting segment (30a) at least one end in the axial direction (Y), the thickness of the mounting segment (30a) in the radial direction (Z) being greater than the thickness of the transition segment (30b) in the radial direction (Z).

7. The tower segment (100) according to claim 5, wherein the flange unit (21) comprises an arc-shaped flange section (211) and a connecting section (212) stacked on the arc-shaped flange section (211), the connecting section (212) is connected with the tower segment (10a), the arc-shaped flange sections (211) are spaced apart from each other in the circumferential direction (X), a first connecting body (22) is arranged between two adjacent arc-shaped flange sections (211) and connected with each other through the first connecting body (22), a receiving groove (30c) is arranged on the vertical flange group (30), and the connecting section (212) is at least partially received in the receiving groove (30c) and connected with the vertical flange group (30).

8. The tower segment (100) according to claim 7, wherein the vertical flange group (30) comprises a first vertical flange (31) and a second vertical flange (32) which are oppositely arranged in the circumferential direction (X) and are connected with each other, the first vertical flange (31) is connected with one of the two adjacently arranged segment assemblies, the second vertical flange (32) is connected with the other one of the two adjacently arranged segment assemblies, and the accommodating groove (30c) is arranged on each of the first vertical flange (31) and the second vertical flange (32).

9. The tower segment (100) of claim 8, wherein the first vertical flange (31) protrudes in the circumferential direction (X) from the connected segment assembly, the second vertical flange (32) protrudes in the circumferential direction (X) from the connected segment assembly, and the first vertical flange (31) and the second vertical flange (32) abut each other in the circumferential direction (X).

10. The tower segment (100) of claim 9, characterised in that a first gap is provided at the interface of the first vertical flange (31) and the second vertical flange (32), a second connector (33) is provided in the first gap, and the vertical flange group (30) and the end flange (20) are connected to each other by the second connector (33).

11. The tower segment (100) according to claim 7, wherein the interface between the connecting segment (212) and the tower segment (10a) is provided with a second cut-out, wherein a third connecting body (40) is provided in the second cut-out, and wherein the connecting segment (212) and the tower segment (10a) are connected by the third connecting body (40).

12. A tower (1) comprising a tower segment (100) according to any of claims 1 to 11.

13. A wind park comprising a tower (1) according to claim 12.