Tower drum and wind generating set

Abstract

The utility model relates to a tower drum and a wind generating set, the tower drum comprises at least one tower drum section, the tower drum section comprises tower drum fragments and adapters, the more than two tower drum fragments are sequentially distributed in the circumferential direction, the adapters are arranged between the two adjacent tower drum fragments, and the more than two tower drum fragments are connected through the adapters and define a hollow cavity. Wherein the adapter piece comprises a first adapter part and a second adapter part which are connected, the first adapter part and the tower drum slice are arranged in parallel, and the second adapter part extends towards or away from the hollow cavity by a preset distance from the first adapter part and is combined with the first adapter part to form connecting spaces which are oppositely arranged in the circumferential direction; and the tower drum fragments extend into the connecting space and are connected with at least one of the first switching part and the second switching part. According to the tower drum in the embodiment of the invention, the bending resistance of the tower drum can be improved, and the stability of the tower drum is improved.

Description

Technical Field

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

[0002] In recent years, wind power generation, as a clean energy source, has become an important direction of world energy development due to its renewable, wide distribution and pollution-free characteristics.

[0003] With the development of larger megawatt-class wind turbines, the tower diameter has increased significantly. The requirements for the roundness and straightness of the tower during the tower manufacturing process have become increasingly higher. During the manufacturing process, it is often encountered that the roundness and straightness exceed the specification requirements. Then, in the process of correcting the deviation, additional stress is introduced, resulting in a decrease in the tower's bearing capacity, making the problem of tower stability more prominent. Utility Model Content

[0004] The present application provides a tower and a wind turbine generator set, which can increase the bending resistance of the tower and improve the stability of the tower.

[0005] On the one hand, according to an embodiment of the present application, a tower is proposed, comprising at least one tower section, the tower section comprising: a tower slice, wherein two or more tower slices are distributed successively along the circumferential direction; a transition piece, arranged between two adjacent tower slices, wherein the two or more tower slices are connected through the transition piece and enclosed to form a hollow cavity; wherein the transition piece comprises a first transition part and a second transition part that are connected, the first transition part is arranged in parallel with the tower slice, the second transition part extends from the first transition part toward or away from the hollow cavity by a preset distance and is combined with the first transition part to form a connecting space arranged opposite to each other along the circumferential direction, the tower slice extends into the connecting space and is connected to at least one of the first transition part and the second transition part.

[0006] According to one aspect of the embodiment of the present application, the extension distance of the second transition portion toward or away from the hollow cavity is greater than the thickness of the tower segment.

[0007] According to one aspect of an embodiment of the present application, the tower segment includes a sub-segment, which is connected to the second adapter part; or, the tower segment includes more than two sub-segments, which are radially spaced apart, the number of the first adapter parts is two and they are radially oppositely arranged at both ends of the second adapter part, and the sub-segments located on both sides are respectively connected to the first adapter parts.

[0008] According to one aspect of an embodiment of the present application, the tower is divided into a plurality of regions along the circumferential direction, each region includes at least one tower segment, and the structural strengths of at least two regions of the tower are different.

[0009] According to one aspect of the embodiments of the present application, the lengths of tower segments in at least two regions along the circumferential direction are different.

[0010] According to one aspect of an embodiment of the present application, the thicknesses of the sub-slices of the tower slices in at least two regions are different, and / or the numbers of the sub-slices of the tower slices in at least two regions are different.

[0011] According to one aspect of the embodiment of the present application, the specifications of the adapters in at least two areas are different.

[0012] According to one aspect of an embodiment of the present application, the tower section also includes a flange, which is arranged at the axial end of the tower section and is connected to the adapter and the tower segment; the flange is provided with a plurality of through holes at intervals along the circumferential direction, and the tower also includes a fastener, which passes through the through hole and connects two adjacent tower sections.

[0013] According to one aspect of the embodiment of the present application, two radial ends of the flange respectively protrude from the tower segment and form a first flange and a second flange, and through holes are respectively arranged on the first flange and the second flange.

[0014] According to one aspect of the embodiment of the present application, two radial ends of the flange are connected to two sub-slices, the through hole is radially located between the two sub-slices, and at least one sub-slice is provided with an opening that exposes the through hole.

[0015] On the other hand, according to an embodiment of the present application, a wind turbine generator set is proposed, comprising the tower of the above embodiment.

[0016] The tower provided in the embodiment of the present application includes a plurality of tower segments and a transition piece arranged between two adjacent tower segments, wherein the tower segments are connected and enclosed by the transition piece to form a spliced ​​tower. The transition piece includes a first transition part and a second transition part connected to each other, wherein the first transition part is arranged in parallel with the tower segments, and the second transition part extends from the first transition part toward or away from the hollow cavity by a preset distance, so that the transition part has good supporting performance and improves the equivalent thickness of the tower at the location of the transition piece, so that the formed tower can resist the moment load caused by wind force through the transition piece, increase the bending resistance of the tower, and improve the stability of the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0018] Figure 1 It is a structural schematic diagram of a wind turbine generator set according to an embodiment of the present application;

[0019] Figure 2 It is a structural schematic diagram of a tower section of an embodiment of the present application;

[0020] Figure 3This is a schematic diagram of the connection between an adapter and a tower segment according to an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the connection between the adapter and the tower segment in another embodiment of the present application;

[0022] Figure 5 This is a wind resource data graph of an embodiment of the present application;

[0023] Figure 6 is a structural schematic diagram of a partial area of ​​a tower section of another embodiment of the present application;

[0024] Figure 7 It is a schematic diagram of the connection of adjacent tower sections according to an embodiment of the present application.

[0025] In the attached figure:

[0026] 100-tower; 200-nacelle; 300-generator; 400-impeller; 410-hub; 420-blade;

[0027] 10-tower section; 20-fastener;

[0028] 1-tower segment; 11-sub-segment; 111-opening; 2-adapter; 21-first adaptor; 211-first adaptor section; 212-second adaptor section; 22-second adaptor; 3-flange.

[0029] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0031] The directional words appearing in the following description are all directions shown in the figures, and do not limit the tower and wind turbine generator set of this application. In the description of this 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 can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In order to better understand this application, Figures 1 to 7 The tower and the wind turbine generator set according to the embodiments of the present application are described in detail.

[0033] See also Figure 1 , Figure 1 The present invention provides a wind turbine generator set, including a tower 100, a nacelle 200, a generator 300, an impeller 400 and a base platform. The tower 100 is connected to the base platform, the nacelle 200 is arranged at the top of the tower 100, and the generator 300 is arranged in the nacelle 200, which can be located inside the nacelle 200, or 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 rotating shaft of the generator 300 through the hub 410. When the wind acts on the blades 420, the rotating shaft of the entire impeller 400 and the generator 300 is driven to rotate to convert wind energy into electrical energy.

[0034] Wind turbines in the prior art, especially large megawatt wind turbines, need to calculate the stability of the tower 100 to avoid the tower 100 becoming unstable and causing the wind turbine to collapse. Therefore, in order to improve the stability of the tower 100, the present application also provides a new tower 100, which can be used in the wind turbines of the above embodiments and as a component of the wind turbine. Of course, it can also be produced or sold separately as an independent component.

[0035] Please also read Figures 1 to 3 , Figure 2 The structure diagram of a tower section 10 according to an embodiment of the present application is shown. Figure 3 A schematic diagram of the connection between the adapter 2 and the tower segment 1 according to an embodiment of the present application is shown.

[0036] The embodiment of the present application provides a tower 100, which includes at least one tower section 10, and the tower section 10 includes a tower segment 1 and an adapter 2. More than two tower segments 1 are successively distributed along the circumferential direction, and the adapter 2 is arranged between two adjacent tower segments 1. More than two tower segments 1 are connected through the adapter 2 and enclosed to form a hollow cavity. Among them, the adapter 2 includes a first adapter portion 21 and a second adapter portion 22 that are connected. The first adapter portion 21 is arranged in parallel with the tower segment 1. The second adapter portion 22 extends from the first adapter portion 21 toward or away from the hollow cavity by a preset distance and combines with the first adapter portion 21 to form a connection space that is arranged oppositely along the circumferential direction. The tower segment 1 extends into the connection space and is connected to at least one of the first adapter portion 21 and the second adapter portion 22.

[0037] The tower 100 in the embodiment of the present application includes a plurality of tower segments 1 and an adapter 2 arranged between two adjacent tower segments 1. The tower segments 1 are connected and enclosed by the adapter 2 to form a spliced ​​tower 100. The adapter 2 includes an intersecting first adapter 21 and a second adapter 22. The first adapter 21 is arranged in parallel with the tower segment 1, and the second adapter 22 extends from the first adapter 21 toward or away from the hollow cavity by a preset distance, so that the adapter has good support performance and improves the equivalent thickness of the tower 100 at the location of the adapter 2. Therefore, the tower 100 formed can resist the moment load caused by wind through the adapter 2, increase the bending resistance of the tower 100, and improve stability. At the same time, compared with the existing tower, under the same bearing capacity, the radius of the tower 100 can be reduced, the foundation area occupied by the tower 100 can be reduced, and the cost of foundation construction can be reduced.

[0038] It can be understood that the second adapter part 22 is combined with the first adapter part 21 to form a connecting space arranged opposite to each other along the circumferential direction, which means that the second adapter part 22 separates the first adapter part 21 to form a first adapter section 211 and a second adapter section 212 located on both sides of the second adapter part 22, the first adapter section 211 is combined with the second adapter part 22 to form a first connecting space, the second adapter section 212 is combined with the second adapter part 22 to form a second connecting space, and the tower segment 1 extends into the first connecting space and the second connecting space respectively to position and connect the tower segment 1 to both sides of the adapter 2 along the circumferential direction.

[0039] Furthermore, the second adapter portion 22 can be connected to the middle position of the first adapter portion 21, that is, the circumferential length of the first adapter segment 211 is equal to the circumferential length of the second adapter segment 212, thereby evenly dividing the first connection space and the second connection space of equal volume to improve the reliability of the connection.

[0040] Optionally, the connection position of the tower segment 1 on the adapter 2 is not limited. The tower segment 1 can be connected only to the first adapter part 21, or only to the second adapter part 22, or simultaneously to the first adapter part 21 and the second adapter part 22.

[0041] In addition, the connection positions of the tower segments 1 on both sides of the adapter 2 on the adapter 2 may be the same or different. For example, the tower segments 1 on both sides of the adapter 2 may both be connected to the first adapter part 21, or both may be connected to the second adapter part 22, or one may be connected to the first adapter part 21 and the other may be connected to the second adapter part 22, so as to meet the connection requirements of the tower segment 1 and the adapter 2.

[0042] Optionally, the connection method between the tower segment 1 and the adapter 2 is not limited, and can be bolt connection or welding. The bolt connection method can reduce the requirements for precision and is more convenient for subsequent maintenance. The welding method is more convenient to manufacture, and at the same time, it can realize welding automation, make the processing more efficient, and improve the manufacturing efficiency of the tower 100. In addition, the welding can be butt welding or lap welding. For example, the tower segment 1 can be connected to the second adapter 22 in the form of butt welding. The connecting weld between the tower segment 1 and the second adapter 22 extends in the longitudinal direction, so that the tower 100 is more stably stressed, and / or the tower segment 1 can be connected to the first adapter 21 in the form of lap welding to increase the connection area between the tower segment 1 and the adapter 2, which has high strength and is not easy to deform, thereby improving the connection reliability.

[0043] In some embodiments, the number of the first adapter 21 can be set to one, and the second adapter 22 is connected to one side of the first adapter 21 to form a T-shaped structure to reduce the weight of the adapter 2, thereby reducing the weight and cost of the tower 100. Optionally, the adapter 2 can be made of T-shaped steel, so that the existing steel can be used to achieve the connection between the tower segments 1, thereby shortening the project period and reducing costs.

[0044] In other embodiments, the number of the first adapter parts 21 may also be set to more than two. The first adapter parts 21 are relatively arranged at both ends of the second adapter parts 22 to form an H-shaped structure. The relatively arranged first adapter parts 21 and the second adapter parts 22 jointly enclose a first connecting space and a second connecting space to facilitate the alignment connection between the tower segment 1 and the adapter 2.

[0045] Optionally, the adapter 2 can be made of H-shaped steel or I-shaped steel, the flanges on both sides of the H-shaped steel can be used as the first adapter part 21, and the web can be used as the second adapter part 22, so that the existing steel sections can be used to achieve the connection between the tower segments 1, thereby shortening the project period and reducing costs.

[0046] Of course, the adapter 2 can also be replaced by other steel sections as long as the connection requirements of the tower segment 1 on the adapter 2 are met.

[0047] See also Figure 2 and Figure 3 In some optional embodiments, the extension distance of the second transition portion 22 toward or away from the hollow cavity is greater than the thickness of the tower segment 1.

[0048] By making the extension distance of the second adapter portion 22 toward or away from the hollow cavity greater than the thickness of the tower segment 1, on the one hand, more options for the connection position of the tower segment 1 on the adapter 2 can be provided to optimize the overall load-bearing performance of the tower section 10; on the other hand, the requirements for the roundness and straightness of the tower segment 1 can be reduced, thereby increasing the applicability of the tower segment 1.

[0049] In actual application, the tower segment 1 can utilize materials from old towers, for example, old towers that have been dismantled due to malfunctions. After nondestructive testing and tensile testing of the old towers, if it is proven that the materials can continue to be used, the materials from the old towers can be reused to cut and form the tower segments 1 in the embodiment of the present application, thereby achieving material recycling and significantly reducing the manufacturing cost of the wind turbine generator set.

[0050] Optionally, the multiple tower segments 1 of the tower section 10 may completely adopt materials from the old tower to achieve secondary utilization of the old materials, thereby greatly reducing the manufacturing cost of the wind turbine. Or, old tower materials may be partially adopted and new materials may be partially adopted, that is, the reliability of the tower 100 may be improved by using old and new materials together.

[0051] Optionally, the multiple tower segments 1 of the tower section 10 can be formed by cutting from different positions of the same old tower, or by cutting from different old towers. Moreover, the thickness of the multiple tower segments 1 can be equal or unequal, and the tower segments 1 can be coaxially arranged or non-coaxially arranged, as long as they can be connected to the adapter 2, thereby greatly increasing the versatility and applicability of the tower 100 and increasing the utilization rate of the old tower.

[0052] See also Figure 2 and Figure 3 Regarding the connection position of the tower segment 1 on the adapter 2 , in some optional embodiments, the tower segment 1 includes a sub-segment 11 , which is connected to the second adapter 22 .

[0053] When the tower segment 1 includes only one sub-segment 11 , the sub-segment 11 can be connected to the second transition portion 22 , and the overall load-bearing performance of the tower section 10 can be optimized by controlling the connection position of the sub-segment 11 on the second transition portion 22 .

[0054] See also Figure 4 , Figure 4 A schematic diagram showing the connection between an adapter 2 and a tower segment 1 according to another embodiment of the present application is shown.

[0055] In other optional embodiments, the tower segment 1 includes more than two sub-segments 11, and the more than two sub-segments 11 are radially spaced apart so that the tower segment 10 forms a multi-layer structure, thereby improving the bearing capacity of the tower segment 10 and making the structure more stable.

[0056] When the tower segment 1 includes more than two sub-segments 11, the number of the first adapter parts 21 is two and they are radially arranged at the two ends of the second adapter part 22, and the sub-segments 11 located on both sides are respectively connected to the first adapter parts 21 to simplify the structure of the tower 100 and improve the integrity of the tower section 10.

[0057] Taking the adapter 2 as an H-shaped steel as an example, the sub-slices 11 on both sides are respectively connected to the first adapter 21 correspondingly, which means that when the tower segment 1 includes two sub-slices 11, the two sub-slices 11 are respectively connected to the flanges of the H-shaped steel to form a double-layer tower 100 structure with better load-bearing performance. When the tower segment 1 includes three sub-slices 11, the sub-slices 11 on both sides are respectively connected to the flanges of the H-shaped steel, and the middle sub-slice 11 is connected to the web of the H-shaped steel, so as to facilitate the alignment connection between the tower segment 1 and the adapter 2.

[0058] Of course, the tower segment 1 may also include four or even more sub-segments 11, that is, the specific number of sub-segments 11 can be adjusted according to the load-bearing requirements of the tower 100, and this application does not make any specific limitation on this.

[0059] In some optional embodiments, the tower segment 10 is divided into a plurality of regions along the circumferential direction, each region includes at least one tower segment 1, and the structural strengths of at least two regions of the tower segment 10 are different.

[0060] Due to the effect of wind direction, the loads borne by the tower section 10 in different circumferential areas are different. Therefore, when manufacturing the tower 100, the structure of the adapter 2 and the tower segment 1 can be reasonably adjusted according to the actual wind resource data measured in the environment where the tower 100 is located, so as to form different bearing capacities in different circumferential areas of the tower section 10, so as to maximize the use of material properties and reduce performance redundancy waste.

[0061] See also Figure 5 , Figure 5 A wind resource data diagram provided by an embodiment of the present application is shown.

[0062] Corresponding to the above-mentioned wind resource data diagram, when manufacturing the tower 100, the structural strength of the tower section 10 in the area where the main wind direction is located, that is, in the area within the range of 337.7° to 360° and 0 to 22.5°, can be increased to increase the bending resistance of the area where the main wind direction is located, and the structural strength of the tower section 10 in the area where the secondary wind direction is located can be appropriately reduced, thereby saving materials of the tower 100 and reducing costs while ensuring the reliability of the wind turbine generator set.

[0063] Optionally, the range of each area can be set according to the wind resource data map, for example, every 22.5° can be divided into one area, and the structural strength of the tower section 10 in each area is adjusted to match the wind resource data measured by the tower 100. Of course, every 45° can also be divided into one area to simplify the design layout of the tower section 10, and the specific range of each area can be adjusted according to actual conditions, and this application does not make specific limitations on this.

[0064] It is understandable that in the actual manufacturing and design process, the structural strength of the tower section 10 in the area can be adjusted by adjusting the distribution of the adapter 2 and the tower segment 1 in the area, and / or adjusting the strength of the tower segment 1 and the connecting parts to form different bearing capacities.

[0065] See also Figure 6 Regarding the distribution of the adapter 2 and the tower segments 1, in some optional embodiments, the circumferential lengths of the tower segments 1 in at least two regions are different.

[0066] In a certain area of ​​the tower section 10, the density of the adapters 2 in the area can be adjusted by adjusting the circumferential length of the tower segments 1, thereby changing the distribution pattern and area proportion of the tower segments 1 and the adapters 2 in the area, and further controlling the bearing capacity of different areas.

[0067] Specifically, in the area corresponding to the main wind direction, the length of the tower segment 1 along the circumferential direction can be reduced, and the spacing between adjacent adapters 2 can be reduced, thereby increasing the installation density of the adapters 2 to increase the bearing capacity of the tower section 10 in this area. Similarly, in the area corresponding to the secondary wind direction, the length of the tower segment 1 along the circumferential direction can be increased, and the spacing between adjacent adapters 2 can be increased, thereby reducing the installation density of the adapters 2, saving tower 100 materials and reducing costs while ensuring the reliability of the wind turbine generator set.

[0068] Optionally, the specific distribution form and regional proportion of the tower segments 1 and adapters 2 in each area can be arranged according to the wind resource quantile points, and can meet the load-bearing requirements of each area of ​​the wind turbine generator set.

[0069] See also Figure 6Regarding the strength of the tower segment 1, in some optional embodiments, the thickness of the sub-slices 11 of the tower segment 1 in at least two regions is different, and / or the number of the sub-slices 11 of the tower segment 1 in at least two regions is different.

[0070] In a certain area of ​​the tower section 10 , the strength of the tower segment 1 in the area can be adjusted by adjusting the thickness, material strength or number of the sub-segments 11 in at least one tower segment 1 , thereby controlling the bearing capacity of the area.

[0071] Specifically, in the area corresponding to the main wind direction, the thickness, material strength or number of the sub-segment 11 of at least one tower segment 1 in the area can be increased to increase the bearing capacity of the tower section 10 in the area. Similarly, in the area corresponding to the secondary wind direction, the thickness, material strength or number of the sub-segment 11 of at least one tower segment 1 in the area can be reduced to save tower 100 materials and reduce costs while ensuring the reliability of the wind turbine generator set.

[0072] In some optional embodiments, the adapter 2 in at least two regions has different specifications.

[0073] In addition to adjusting the circumferential length of the tower segment 1 and the strength of the tower segment 1, the specifications of the adapter 2 can also be adjusted. Similar to the tower segment 1, a larger H-shaped steel can be arranged in the area corresponding to the main wind direction to increase the bearing capacity of the tower section 10 in this area. Similarly, a smaller H-shaped steel can be arranged in the area corresponding to the secondary wind direction to save tower 100 materials and reduce costs while ensuring the reliability of the wind turbine generator set.

[0074] See also Figure 7 In some optional embodiments, the tower section 10 further includes a flange 3, which is arranged at the axial end of the tower section 10 and is connected to the adapter 2 and the tower segment 1, and the flange 3 is provided with a plurality of through holes at intervals along the circumferential direction. The tower 100 further includes a fastener 20, which passes through the through hole and connects two adjacent tower sections 10.

[0075] By making the tower 100 include a plurality of tower sections 10 arranged along the axial direction, it is easier to manufacture, transport and assemble. Each tower section 10 can be formed by splicing the adapter 2 and the tower segment 1, and the connection between two adjacent tower sections 10 can be achieved by arranging flanges 3 at the butt ends of adjacent tower sections 10 and passing fasteners 20 through the through holes of the flanges 3. Optionally, the flange 3 can be connected to the adapter 2 and the tower segment 1 by welding to improve the reliability of the tower section 10.

[0076] Optionally, the fastener 20 can be set as a bolt, and the bolt connection is simpler and more reliable. The connection between two adjacent tower sections 10 is achieved by respectively passing through holes with multiple bolts, which can make the force transmission between the tower sections 10 more uniform, reduce the load of a single bolt, have a higher safety factor, and make the tower 100 more reliable.

[0077] Optionally, the adapters 2 in two adjacent tower sections 10 may be arranged in correspondence along the axial direction, so that the adapters 2 can support each other along the axial direction, further improving the bending resistance of the tower 100 and improving the stability of the tower 100.

[0078] It can be understood that, since the tower segment 1 may include one sub-segment 11 or more than two sub-segments 11 , the structure of the flange 3 may be adjusted according to the arrangement of the tower segment 1 .

[0079] See also Figure 1 and Figure 7 When the tower segment 1 includes a sub-segment 11, in some optional embodiments, the two ends of the flange 3 in the radial direction respectively protrude from the tower segment 1 and form a first flange and a second flange, and the through holes are respectively arranged on the first flange and the second flange.

[0080] That is, when the tower segment 1 includes a sub-segment 11, the flange 3 can be made to protrude from the tower segment 1 and form a flange, thereby leaving a larger operating space for bolt installation and facilitating installation. In addition, by making both ends of the flange 3 protrude from the tower segment 1 in the radial direction, the bolts can respectively connect the tower segments 10 from the inside and outside of the tower 100 to avoid eccentric force on the bolts. At the same time, a sufficient number of bolts can be arranged to improve the bolt bearing capacity and the connection strength between the tower segments 10, extend the maintenance cycle of the bolts, reduce the cost of manpower and operation and maintenance, and reduce the risk of bolt breakage, thereby improving the reliability of the tower 100.

[0081] See also Figure 3 and Figure 7 When the tower segment 1 includes more than two sub-segments 11, in some optional embodiments, the two radial ends of the flange 3 are connected to the two sub-segments 11, the through hole is radially located between the two sub-segments 11, and at least one sub-segment 11 is provided with an opening 111, and the opening 111 exposes the through hole.

[0082] That is, when the tower section 10 is set as a multi-layer structure, the flange 3 can be set between the interlayers of the tower section 10. At this time, an opening 111 can be set on at least one sub-segment 11 to reserve operating space for the bolts, so as to facilitate the installation of the bolts through the opening 111.

[0083] Therefore, the tower 100 provided in the embodiment of the present application is formed by splicing a plurality of tower segments 1 and an adapter 2. Since the adapter 2 includes a first adapter portion 21 and a second adapter portion 22 that are arranged to intersect, the adapter 2 can be used to connect two adjacent tower segments 1 while enabling the adapter portion to have good supporting performance. Thus, the adapter 2 can be used to resist the moment load caused by wind force, thereby increasing the bending resistance of the tower 100 and improving the stability of the tower 100.

[0084] The wind turbine generator set provided in the embodiment of the present application includes the tower 100 provided in the above embodiments, so it also has the advantages of strong bending resistance and high stability, and is easy to promote and use.

[0085] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tower, characterized in that: The invention comprises at least one tower section (10), wherein the tower section (10) comprises: Tower segments (1), wherein two or more tower segments (1) are successively distributed along the circumferential direction; An adapter (2) is arranged between two adjacent tower segments (1), and two or more tower segments (1) are connected via the adapter (2) and enclosed to form a hollow cavity; The adapter (2) comprises a first adapter portion (21) and a second adapter portion (22) which are connected to each other. The first adapter portion (21) is arranged in parallel with the tower segment (1). The second adapter portion (22) extends from the first adapter portion (21) toward or away from the hollow cavity by a preset distance and is combined with the first adapter portion (21) to form a connection space which is arranged opposite to each other in the circumferential direction. The tower segment (1) extends into the connection space and is connected to at least one of the first adapter portion (21) and the second adapter portion (22).

2. The tower according to claim 1, characterized in that: The extension distance of the second transition portion (22) towards or away from the hollow cavity is greater than the thickness of the tower segment (1).

3. The tower according to claim 1 or 2, characterized in that: The tower segment (1) comprises a sub-segment (11), and the sub-segment (11) is connected to the second transition portion (22); Alternatively, the tower segment (1) comprises more than two sub-segments (11), the more than two sub-segments (11) are arranged at intervals along the radial direction, the number of the first transition parts (21) is two and they are arranged at two ends of the second transition part (22) opposite to each other along the radial direction, and the sub-segments (11) located on both sides are respectively connected to the first transition parts (21) accordingly.

4. The tower according to claim 3, characterized in that: The tower section (10) is divided into a plurality of regions along the circumferential direction, each region comprises at least one tower segment (1), and at least two regions of the tower section (10) have different structural strengths.

5. The tower according to claim 4, characterized in that: The tower segments (1) in at least two regions have different lengths along the circumferential direction.

6. The tower according to claim 4, characterized in that: The thickness of the sub-segments (11) of the tower segment (1) in at least two regions is different, and / or the number of the sub-segments (11) of the tower segment (1) in at least two regions is different.

7. The tower according to claim 4, characterized in that: The adapter (2) in at least two areas has different specifications.

8. The tower according to claim 3, characterized in that: The tower section (10) further comprises a flange (3), wherein the flange (3) is arranged at an end portion of the tower section (10) along the axial direction and is connected to the adapter (2) and the tower segment (1); The flange (3) is provided with a plurality of through holes at intervals along the circumferential direction, and the tower (100) further comprises a fastener (20), wherein the fastener (20) passes through the through holes and connects two adjacent tower sections (10).

9. The tower according to claim 8, characterized in that: The two ends of the flange (3) along the radial direction respectively protrude from the tower segment (1) to form a first flange and a second flange, and the through holes are respectively arranged on the first flange and the second flange.

10. The tower according to claim 8, characterized in that: The flange (3) is connected to the two sub-segments (11) at both ends along the radial direction, the through hole is located between the two sub-segments (11) along the radial direction, and at least one of the sub-segments (11) is provided with an opening (111), and the opening (111) exposes the through hole.

11. A wind turbine generator set, characterized in that: It comprises the tower (100) according to any one of claims 1 to 10.

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