Tower sections, tower section forming methods, towers, and wind turbine generator sets.

Abstract

This application relates to a tower section, a method for forming the tower section, a tower, and a wind turbine generator set. The tower section includes a metal section and a filler. The metal section includes an annular body and multiple supporting parts. The annular body has an inner annular surface and an outer annular surface that are oppositely arranged in its radial direction. The multiple supporting parts are distributed circumferentially along the annular body and are respectively connected to the inner annular surface. Each supporting part includes an arc-shaped piece and a support member. The arc-shaped piece is radially spaced from the inner annular surface, and the support member is connected between the arc-shaped surface and the inner annular surface. The cavity formed by two adjacent supporting parts and the annular body is filled with the filler. The filler is connected to the annular body and the supporting parts. Radially, the surface of the filler facing away from the inner annular surface and the surface of the arc-shaped piece facing away from the inner annular surface are located on the same annular surface. The embodiments of this application are easy to construct and help improve the connection strength and rigidity of the tower section, thereby ensuring the forming quality of the tower section and reducing costs.

Description

Technical Field

[0001] This application relates to the field of wind power technology, and in particular to a tower section, a method for forming the tower section, a tower, and a wind turbine generator set. Background Technology

[0002] With the development of high-power wind turbine generators, the diameter of the rotor is getting larger and larger, and the corresponding tower height and cross-sectional dimensions are also getting larger and larger.

[0003] Traditional wind turbine towers are typically made of steel, which, while meeting the strength requirements of wind turbines, also has limitations. For example, to meet stability, strength, and fatigue requirements, steel towers are often designed with larger diameters and wall thicknesses, resulting in material waste. Concrete towers, on the other hand, have long construction cycles and high costs, making them difficult to meet the rapid construction requirements of wind farms. Summary of the Invention

[0004] This application provides a tower section, a tower section forming method, a tower, and a wind turbine generator set, which is easy to construct and helps to improve the connection strength and rigidity of the tower section, thereby ensuring the forming quality of the tower section and reducing costs.

[0005] On one hand, according to an embodiment of this application, a tower section is proposed, including: a metal cylinder section, including an annular body and a plurality of supporting parts, the annular body having an inner annular surface and an outer annular surface arranged opposite to each other in its radial direction, the plurality of supporting parts being distributed at intervals along the circumference of the annular body and respectively connected to the inner annular surface, each supporting part including an arc-shaped piece and a support member, the arc-shaped piece being arranged at intervals with the inner annular surface in the radial direction, and the support member being connected between the arc-shaped surface and the inner annular surface; a filler, the cavity formed by two adjacent supporting parts and the annular body being filled with a filler, the filler being connected to the annular body and the supporting parts, and in the radial direction, the surface of the filler facing away from the inner annular surface and the surface of the arc-shaped piece facing away from the inner annular surface are located on the same annular surface.

[0006] According to one aspect of the embodiments of this application, along the axial direction of the annular body, the orthographic projection of the support portion is either a T-shaped structure or an L-shaped structure.

[0007] According to one aspect of the embodiments of this application, the annular surface is coaxially arranged with the annular body.

[0008] According to one aspect of the embodiments of this application, the support member has a through hole extending circumferentially to allow two adjacent receiving cavities to communicate circumferentially.

[0009] According to one aspect of the embodiments of this application, the metal cylindrical section further includes a plurality of reinforcing members, each of which is provided in a receiving cavity. One end of the reinforcing member is connected to the inner annular surface in the radial direction and the other end extends into the filling body.

[0010] According to one aspect of an embodiment of this application, the filler includes concrete.

[0011] On the other hand, according to an embodiment of this application, a method for forming a tower section is proposed, comprising: providing a metal section, the metal section including an annular body and a plurality of supporting parts, the annular body having an inner annular surface and an outer annular surface arranged opposite to each other in its radial direction, the plurality of supporting parts being distributed at intervals along the circumference of the annular body and respectively connected to the inner annular surface, the supporting parts including an arc-shaped piece and a support member, the arc-shaped piece being arranged at intervals with the inner annular surface in the radial direction, and the support member being connected between the arc-shaped surface and the inner annular surface; providing a support mold, the support mold including a top mold, a bottom mold and a side mold, the bottom mold being connected to one side of the metal section along the axial direction of the annular body, the side mold being connected to the surface of the arc-shaped piece along the radial direction away from the inner annular surface, the bottom mold, the side mold and the metal section enclosing to form a cavity; pouring slurry into the cavity, connecting the top mold to the other side of the metal section along the axial direction, the slurry solidifying to form a filler, the filler being connected to the metal section and the support mold; and removing the support mold.

[0012] According to one aspect of the embodiments of this application, the step of providing a metal cylindrical section includes: providing a metal material plate, rolling the metal material plate into an annular body having an inner annular surface and an outer annular surface, and connecting one side of a support member radially upward to the inner annular surface and the other side to an arc-shaped piece.

[0013] According to one aspect of the present application, the step of providing a metal cylindrical section includes: providing a plurality of reinforcing members, wherein one end of the plurality of reinforcing members is connected to an inner annular surface in the radial direction and the other end is suspended.

[0014] According to one aspect of the embodiments of this application, the step of providing a support mold includes: the side mold includes a plurality of arc-shaped plates, each arc-shaped plate is connected to the surface of two adjacent arc-shaped pieces on one side radially away from the inner ring surface, and the arc-shaped plates and arc-shaped pieces are alternately distributed along the circumferential direction.

[0015] According to one aspect of the embodiments of this application, the step of providing a support mold includes: having a plurality of bottom molds, each bottom mold including a first protrusion protruding along its own thickness direction, the first protrusion being axially inserted between two adjacent support portions and the annular body and connected to the inner annular surface and the arc-shaped piece.

[0016] According to one aspect of the embodiments of this application, the step of pouring grout into the cavity includes: having a plurality of top molds, each top mold including a second protrusion protruding along its own thickness direction, the second protrusion extending axially between two adjacent support portions and the annular body and connecting to the inner annular surface and the arc-shaped piece.

[0017] In another aspect, an embodiment of this application provides a tower section comprising the tower section as described above and / or a tower section formed by the tower section forming method described above.

[0018] Furthermore, according to embodiments of this application, a wind turbine generator set is proposed, including the tower as described above.

[0019] The tower section, tower section forming method, tower, and wind turbine generator provided in this application embodiment include a metal cylinder section and a filler. The metal cylinder section includes an annular body and multiple support parts. The annular body has an inner ring surface and an inner ring surface that are oppositely arranged in its radial direction. The multiple support parts are distributed at intervals along the axial direction of the annular body and are connected to the inner ring surface. The cavity formed by two adjacent support parts and the annular body is filled with the filler. The filler is connected to the annular body and the support parts to form the tower section, which helps to reduce the use cost of the tower section. At the same time, the arc-shaped piece of the support part is spaced apart from the inner ring surface in the radial direction, and the support member of the support part is connected between the arc-shaped piece and the inner ring surface. That is, the support member can also constrain the filler, enhance the adhesion between the filler and the metal cylinder section, improve the rigidity of the tower section, and help reduce deformation. Furthermore, this design allows for dual-sided operation of the metal cylinder section, enabling connection between the annular body and the support from both outside and inside the cavity. This facilitates construction and improves the connection strength and rigidity of the tower section, thereby ensuring its molding quality. Additionally, the surface of the filler facing away from the inner annular surface and the surface of the arc-shaped piece facing away from the inner annular surface are located on the same annular surface, further ensuring the molding quality of the tower section. Attached Figure Description

[0020] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of a wind turbine generator set according to an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the tower section according to one embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of the metal cylinder section in a tower section according to an embodiment of this application;

[0024] Figure 4 This is a top view of a metal cylinder section in a tower section according to an embodiment of this application;

[0025] Figure 5 for Figure 4 Enlarged structural diagram at point P;

[0026] Figure 6 This is a schematic flowchart illustrating a method for forming a tower section according to an embodiment of this application.

[0027] in:

[0028] 100-Tower section;

[0029] 10-Metal cylindrical section; 10a-Receiving cavity; 11-Annular body; 111-Inner annular surface; 112-Outer annular surface; 12-Support part; 121-Arc-shaped piece; 122-Supporting member; 122a-Through hole; 13-Reinforcing member; 20-Filling body;

[0030] 1-Tower; 2-Nacelle; 3-Generator; 4-Impeller; 401-Hub; 402-Blade;

[0031] X - radial; Y - circumferential; Z - axial. Detailed Implementation

[0032] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0033] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the tower section, the tower section forming method, the tower, or the wind turbine generator set of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] To better understand this application, the following will be combined with... Figures 1 to 6 The tower section, the tower section forming method, the tower, and the wind turbine generator set are described in detail according to the embodiments of the application.

[0035] Please see Figure 1 , Figure 1This is a schematic diagram of a wind turbine generator set according to one embodiment of this application. This embodiment provides a wind turbine generator set including a tower 1, a nacelle 2, a generator 3, and a rotor 4. The tower 1 is connected to the wind turbine foundation and is composed of multiple tower sections 100 spliced ​​together. The nacelle 2 is located at the top of the tower 1, and the generator 3 is located in the nacelle 2. In some examples, the generator 3 can be located outside the nacelle 2; of course, in some examples, the generator 3 can also be located inside the nacelle 2. The rotor 4 includes blades 402 and a hub 401. Multiple blades 402 are connected to the hub 401. When wind power acts on the blades 402, it drives the entire rotor 4 and the shaft of the generator 3 to rotate, thereby converting wind energy into electrical energy.

[0036] With the development of high-power wind turbine generators, the diameter of the rotor (4) is increasing, as are the height and cross-sectional dimensions of the tower (1). Traditional towers are typically made of steel, which, while meeting the strength requirements of wind turbine generators, also has limitations. To meet stability, strength, and fatigue requirements, the tower diameter and wall thickness are generally large, resulting in material waste. Concrete towers have long construction cycles and high costs, making them unsuitable for the rapid construction of wind farms. In contrast, steel pipe-encased concrete towers have thin steel pipe walls, making them prone to deformation during welding and concrete pouring. Furthermore, the thin concrete layer limits the internal construction space of the steel pipe, making it difficult to guarantee the welding quality of the steel pipe and the quality of the concrete construction.

[0037] Based on the above deficiencies, this application provides a tower section 100, a method for forming the tower section 100, a tower 1, and a wind turbine generator set, which are easy to construct and help improve the connection strength and rigidity of the tower section 100, thereby ensuring the forming quality of the tower section 100 and reducing the cost of use.

[0038] Please see Figure 2 and Figure 3 This application provides a tower section 100, including a metal section 10 and a filler 20. The metal section 10 includes an annular body 11 and a plurality of support portions 12. The annular body 11 has an inner annular surface 111 and an outer annular surface 112 disposed opposite to each other in its radial direction X. The plurality of support portions 12 are distributed at intervals along the circumferential direction Y of the annular body 11 and are respectively connected to the inner annular surface 111. Each support portion 12 includes an arc-shaped piece 121 and a support member 122. The arc-shaped piece 121 is spaced apart from the inner annular surface 111 in the radial direction X, and the support member 122 is connected between the arc-shaped piece and the inner annular surface 111. The filler 20 is filled in the receiving cavity 10a formed by two adjacent support portions 12 and the annular body 11. The filler 20 is connected to the annular body 11 and the support portions 12. In the radial direction X, the surface of the filler 20 facing away from the inner annular surface 111 and the surface of the arc-shaped piece 121 facing away from the inner annular surface 111 are located on the same annular surface.

[0039] The tower section 100 provided in this application embodiment has multiple support parts 12 distributed at intervals along the circumferential Y direction of the annular body 11 and connected to the inner annular surface 111 of the annular body 11 respectively. The receiving cavity 10a formed by two adjacent support parts 12 and the annular body 11 is filled with filler 20. The filler 20 is connected to the annular body 11 and the support parts 12 to form the tower section 100, which helps to reduce the use cost of the tower section 100. At the same time, the arc-shaped piece 121 of the support part 12 is spaced apart from the inner annular surface 111 in the radial X direction, and the support member 122 of the support part 12 is connected between the arc-shaped piece 121 and the inner annular surface 111. That is, the support member 122 can also constrain the filler 20, enhance the adhesion between the filler 20 and the metal cylinder section 10, improve the rigidity of the tower section 100 and help reduce deformation. Furthermore, this configuration allows for dual-sided operation of the metal cylinder section 10, meaning the annular body 11 and support 12 can be connected both from outside the receiving cavity 10a and from inside the receiving cavity 10a. This facilitates construction and improves the connection strength and rigidity of the tower cylinder section 100, thereby ensuring the forming quality of the tower cylinder section 100. In addition, the surface of the filler 20 facing away from the inner annular surface 111 and the surface of the arc-shaped piece 121 facing away from the inner annular surface 111 are located on the same annular surface, further ensuring the forming quality of the tower cylinder section 100.

[0040] Specifically, multiple support portions 12 are distributed at intervals along the circumferential Y direction and are respectively connected to the inner ring surface 111. Each support portion 12 includes an arc-shaped piece 121 and a support member 122. That is, multiple arc-shaped pieces 121 and multiple support members 122 are also distributed at intervals along the circumferential Y direction, and the arc-shaped pieces 121 are spaced apart from the inner ring surface 111 in the radial X direction. The support member 122 is connected between the arc-shaped surface and the inner ring surface 111. By configuring the support member 122 in this way, the connection strength between the annular body 11 and the arc-shaped piece 121 can be enhanced, thereby improving the connection strength and rigidity of the metal cylinder section 10. Furthermore, since the two adjacent support parts 12 are spaced apart, i.e., there is a predetermined gap between the two adjacent support parts 12, it is convenient to connect the support member 122 and the inner annular surface 111 of the annular body 11 from the inside. The "inside" refers to the area between the inner annular surface 111 and the arc-shaped piece 121. Of course, the support member 122 and the inner annular surface 111 of the annular body 11 can also be connected from the outside. The "outside" refers to the position of the outer annular surface 112 away from the inner annular surface 111, which is convenient to realize the double-sided connection operation between the support part 12 and the annular body 11, and ensure the welding quality of the metal cylinder section 10.

[0041] Optionally, the annular body 11 and the support portion 12 can be connected by welding or other connection methods.

[0042] It is understandable that external welding is prone to problems such as weak welding. Therefore, through the above arrangement, multiple support parts 12 are distributed at intervals along the circumferential Y direction of the annular body 11, so that the metal cylinder section 10 has space for welding from the inside, which is conducive to better improving the welding strength and welding quality of the metal cylinder section 10.

[0043] Optionally, the support portion 12 and the annular body 11 can be made of the same material, or they can be made of different materials. Specifically, both the support portion 12 and the annular body 11 can be made of steel, or the arc-shaped piece 121 of the support portion 12 and the annular body 11 can be made of steel, while the support member 122 can be made of a metal material with slightly lower strength than steel.

[0044] It is understandable that by setting the metal cylinder section 10 to include an annular body 11 and a support part 12, it is also beneficial to reduce the amount of metal used, further reduce the use cost of the metal cylinder section 10, and thus reduce the use cost of the tower cylinder section 100.

[0045] Optionally, the multiple support parts 12 can be evenly spaced along the circumferential Y direction of the annular body 11, or they can be spaced according to a certain pattern. Of course, they can also be evenly spaced along the circumferential Y direction of the annular body 11 in other arrangements, so that the support parts 12 can better strengthen the structural performance of the metal cylinder section 10.

[0046] Optionally, the support member 122 and the arc-shaped piece 121 are intersecting. For example, the support member 122 can be perpendicular to the arc-shaped piece 121, that is, the included angle between the support member 122 and the arc-shaped piece 121 is 90°. Of course, the included angle between the support member 122 and the arc-shaped piece 121 can also be other angles, such as 75°, 85°, etc.

[0047] Optionally, the support portion 12 may include one support member 122, two support members 122, or multiple support members 122. That is, the number of support members 122 connected between the inner ring surface 111 and the arc-shaped piece 121 can be one, two, or multiple.

[0048] When the support portion 12 includes two or more support members 122, the two or more support members 122 can be distributed at intervals along the circumferential Y direction and respectively connected to the inner ring surface 111 and the arc-shaped piece 121. Alternatively, the two or more support members 122 can also be distributed at intervals along the axial Z direction of the annular body 11 and respectively connected to the inner ring surface 111 and the arc-shaped piece 121. Of course, the two or more support members 122 can also be configured in other distribution forms and respectively connected to the inner ring surface 111 and the arc-shaped piece 121.

[0049] Two adjacent support parts 12 and the annular body 11 enclose a receiving cavity 10a. Each receiving cavity 10a is filled with a filler 20, which connects the filler 20 to the annular body 11 and the support part 12, thereby improving the strength and rigidity of the tower section 100. The structure is simple and easy to construct. Furthermore, along the axial direction Z, a support member 122 is provided between the filler 20 of two adjacent receiving cavities 10a, which helps to improve the constraint on the filler 20 and ensure molding quality and strength.

[0050] Along the radial direction X, the surface of the filler 20 facing away from the inner annular surface 111 and the surface of the arc-shaped piece 121 facing away from the inner annular surface 111 are located on the same annular surface, so that the filler 20 is fully connected between two adjacent arc-shaped pieces 121, which helps to ensure the connection integrity of the tower section 100 and also improves the forming quality of the tower section 100.

[0051] For reference Figures 2 to 5 As an optional embodiment, the orthographic projection of the support portion 12 along the axial direction Z of the annular body 11 is either a T-shaped structure or an L-shaped structure.

[0052] This design improves the versatility and flexibility of the support section 12.

[0053] Optionally, along the axial direction Z of the annular body 11, the orthographic projection of the support portion 12 has a T-shaped structure. That is, the support member 122 can be connected to the middle position of the arc-shaped piece 121. Along the circumferential direction Y of the annular body 11, both ends of the arc-shaped piece 121 protrude from the support member 122. The specific length by which each end of the arc-shaped piece 121 protrudes from the support member 122 is not limited in this application. For example, the support member 122 is connected to the exact center position of the arc-shaped piece 121, that is, along the circumferential direction Y of the annular body 11, both ends of the arc-shaped piece 121 protrude from the support member 122 by a predetermined length, so as to improve the connection strength and uniformity of the support member 122 to the arc-shaped piece 121. Of course, the orthographic projection of the support portion 12 can also have an L-shaped structure. That is, the support member 122 can be connected to the end position of the arc-shaped piece 121, that is, along the circumferential direction Y of the annular body 11, one end of the arc-shaped piece 121 protrudes from the support member 122, and the other end is connected to the support member 122.

[0054] In some alternative embodiments, the orthographic projection of the support portion 12 along the axial direction Z of the annular body 11 can also be a combination of a T-shaped structure and an L-shaped structure.

[0055] Optionally, the length of each arc-shaped piece 121 can be set to be the same, or it can be set to be different.

[0056] As an optional embodiment, the annular surface is coaxially arranged with the annular body 11.

[0057] This design helps improve the forming quality of the tower section 100, making its manufacturing more standardized and ensuring that the thickness of each part of the tower section 100 is the same, thus preventing safety issues caused by uneven stress in a certain part of the tower section 100.

[0058] Optionally, any point on the annular surface can be selected at a distance equal to the radial direction X of the annular body 11.

[0059] Optionally, in the Z-axis direction, the orthographic projection of the annular surface and the orthographic projection of the annular body 11 are concentric circles.

[0060] Optionally, the length of the support member 122 of each support part 12 along the radial X direction is the same to ensure that the annular surface is coaxially arranged with the annular body 11.

[0061] Please continue reading. Figure 3 As an optional embodiment, the support 122 has a through hole 122a extending in the circumferential direction Y, so that two adjacent receiving cavities 10a are connected in the circumferential direction Y.

[0062] This configuration allows the filler 20 to flow and distribute within each receiving cavity 10a, which helps improve manufacturing efficiency.

[0063] It is understandable that the filler 20 can be a fluid. Since two adjacent receiving cavities 10a are connected in the circumferential Y direction, during manufacturing, the filler 20 can be set in only a few receiving cavities 10a. The filler 20 can flow through the through hole 122a to its adjacent receiving cavity 10a. Otherwise, the filler 20 needs to be set in one receiving cavity 10a at a time. This can reduce manufacturing time and labor costs, improve manufacturing efficiency, and reduce the difficulty of operation.

[0064] Optionally, the number of through holes 122a can be set to one, two, or of course, multiple.

[0065] Optionally, the shape of the through hole 122a can be set to a circular, elliptical, or rhomboid structure.

[0066] Optionally, the number and shape of the through holes 122a on each support member 122 can be set to be the same, or they can be set to be different.

[0067] Please continue reading. Figure 2 and Figure 3 As an optional embodiment, the metal cylindrical section 10 also includes a plurality of reinforcing members 13, each of which is provided in a cavity 10a. One end of the reinforcing member 13 in the radial direction X is connected to the inner annular surface 111 and the other end extends into the filler 20.

[0068] By setting the reinforcing member 13, the metal cylinder section 10 and the filler 20 are bonded together, which helps to constrain the filler 20 and improve the rigidity of the metal cylinder section 10, thereby reducing deformation.

[0069] Optionally, the reinforcing member 13 can be a stud, or of course, a rib, etc.

[0070] Optionally, along the axial direction, the orthographic projection of the reinforcing member 13 can be an I-shaped structure, an L-shaped structure, a T-shaped structure, or a triangular structure.

[0071] In some alternative embodiments, depending on the manufacturing requirements or the size of the tower section 100, multiple reinforcing members 13 may also be connected to at least a portion of the arc-shaped plate 121. One end of the reinforcing member 13 is connected to the arc-shaped plate 121 in the radial direction X, and the other end extends into the filler 20. This allows the reinforcing member 13 connected to the arc-shaped plate 121 and the reinforcing member 13 connected to the inner ring surface 111 to work together to improve the adhesion between the metal cylinder section 10 and the filler 20, better constrain the filler 20, and better improve the rigidity of the metal cylinder section 10, thereby reducing deformation.

[0072] Optionally, in the radial direction X, the reinforcing member 13 connected to the arc-shaped piece 121 and the reinforcing member 13 connected to the inner annular surface 111 do not contact each other.

[0073] As an alternative embodiment, the filler 20 comprises concrete.

[0074] This method improves the connection strength between the filler 20 and the metal cylinder 10. Concrete is readily available, low in cost, and has high strength, making the tower cylinder 100 formed by the concrete and the metal cylinder 10 more robust.

[0075] Optionally, the infill 20 can be made of either ordinary concrete or lightweight aggregate concrete. Alternatively, the infill 20 can also be made of either micro-expansion concrete or self-compacting micro-expansion concrete.

[0076] Please see Figure 6 This application also provides a method for forming a tower section 100, which includes the following steps:

[0077] S100. A metal cylindrical section 10 is provided. The metal cylindrical section 10 includes an annular body 11 and a plurality of support parts 12. The annular body 11 has an inner annular surface 111 and an outer annular surface 112 that are arranged opposite to each other in its radial direction X. The plurality of support parts 12 are distributed at intervals along the circumferential direction Y of the annular body 11 and are respectively connected to the inner annular surface 111. The support part 12 includes an arc-shaped piece 121 and a support member 122. The arc-shaped piece 121 is spaced apart from the inner annular surface 111 in the radial direction X. The support member 122 is connected between the arc-shaped surface and the inner annular surface 111.

[0078] S200. A support mold is provided, which includes a top mold, a bottom mold and a side mold. The bottom mold is connected to one side of the metal cylinder section 10 along the axial direction Z of the annular body 11, and the side mold is connected to the surface of the arc-shaped piece 121 along the radial direction X away from the inner annular surface 111. The bottom mold, the side mold and the metal cylinder section 10 enclose a cavity.

[0079] S300, pour grout into the cavity, connect the top mold to the other side of the metal cylinder section 10 along the Z axis, the grout solidifies and forms a filler 20, the filler 20 is connected to the metal cylinder section 10 and the support mold.

[0080] S400, dismantle the support formwork.

[0081] This application also provides a method for forming a tower section 100, which utilizes an annular body 11 connected with multiple support parts 12 to form a metal section 10. The multiple support parts 12 are spaced apart along the circumferential Y direction of the annular body 11 and are respectively connected to the inner annular surface 111 of the annular body 11. This reduces the cost of using metal materials, thereby lowering the cost of using the metal section 10. By arranging the arc-shaped piece 121 at intervals with the inner annular surface 111 in the radial X direction, and connecting the support member 122 between the arc-shaped surface and the inner annular surface 111, it is advantageous to achieve double-sided operation of the metal section 10. That is, connection operations can be performed both between the inner annular surface 111 and the arc-shaped piece 121, and also on the side of the outer annular surface 122 away from the arc-shaped piece 121. This facilitates construction and improves the connection strength and rigidity of the tower section 100, thereby ensuring the forming quality of the tower section 100. Furthermore, a support mold is installed on the metal cylinder section 10 and grout is poured. After the grout solidifies and forms a filler 20, the filler 20 is connected to the metal cylinder section 10 and the support mold. Then the support mold is removed to complete the forming operation of the tower section 100.

[0082] In step S100, the annular body 11 and the multiple support parts 12 can be integrally formed, which is beneficial to improving processing efficiency. Of course, they can also be provided separately. The annular body 11 and the multiple support parts 12 can be prefabricated separately, and then the multiple support parts 12 can be distributed at intervals along the circumferential Y direction of the annular body 11 and the support 122 can be connected to the inner ring surface 111, which is beneficial to reduce processing difficulty and improve usage flexibility.

[0083] Optionally, the support part 12 can be an integrally formed structure, which is beneficial to improve processing efficiency. Of course, it can also be provided separately. The arc-shaped piece 121 and the support 122 can be prefabricated separately, and then the support 122 and the arc-shaped piece 121 can be connected together, which is beneficial to reduce processing difficulty and improve the flexibility of use.

[0084] In step S200, the support mold includes a top mold, a bottom mold, and side molds. Optionally, the bottom mold and side molds can be integrally formed, i.e., pre-processed to connect the metal cylinder segment 10 along the axial Z side of the annular body 11 and the surface of the arc-shaped piece 121 along the radial X side away from the inner annular surface 111. These are then assembled to enclose the cavity with the metal cylinder segment 10, which improves processing efficiency. Alternatively, the bottom mold and side molds can be provided separately, which reduces processing difficulty and increases flexibility in use.

[0085] Optionally, the side mold can be a continuous annular structure to be connected to the surface of each arcuate piece 121 on the side opposite to the inner annular surface 111 along the radial X direction.

[0086] In step S300, after the cavity is filled with slurry, the top mold is connected to the metal cylinder section 10 on the side opposite to the bottom mold along the Z-axis. After the slurry solidifies, it forms a filler 20, which is connected to both the metal cylinder section 10 and the support mold.

[0087] Alternatively, grout can be poured into the cavity along the Z-axis away from the bottom mold, which is simple to operate and facilitates construction.

[0088] In step S400, after the slurry has completely formed the filler 20, the top mold, bottom mold and side mold are removed to form the tower section 100.

[0089] Optionally, the filler 20 includes concrete to improve the connection strength between the filler 20 and the metal cylinder 10. Concrete is readily available, low in cost, and has high strength, making the tower cylinder 100 formed by the concrete and the metal cylinder 10 more robust.

[0090] Optionally, this application does not limit the demolding order of the top mold, bottom mold, and side mold.

[0091] As an optional embodiment, the step of providing the metal cylinder section 10S100 includes:

[0092] A metal material plate is provided, and the metal material plate is rolled into an annular body 11 having an inner annular surface 111 and an outer annular surface 112. The support member 122 is connected to the inner annular surface 111 on one side along the radial X direction and to the arc-shaped piece 121 on the other side.

[0093] Optionally, the annular body 11, which is made of rolled metal sheet and has an inner annular surface 111 and an outer annular surface 112, can be cylindrical or conical.

[0094] Alternatively, the metal material plate can be configured as a steel plate structure.

[0095] As an optional embodiment, the step of providing the metal cylinder section 10S100 includes:

[0096] Multiple reinforcing members 13 are provided, with one end of each reinforcing member 13 connected to the inner annular surface 111 in the radial direction X and the other end suspended.

[0097] By setting the reinforcing member 13, the adhesion between the metal cylinder section 10 and the filler 20 is enhanced, and the filler 20 is constrained, thereby increasing the rigidity of the metal cylinder section 10 and reducing deformation, thus ensuring the forming quality of the tower cylinder section 100.

[0098] Optionally, the reinforcing member 13 can be a stud, or of course, a rib, etc.

[0099] Optionally, along the axial direction, the orthographic projection of the reinforcing member 13 can be an I-shaped structure, an L-shaped structure, a T-shaped structure, or a triangular structure.

[0100] Optionally, multiple reinforcing members 13 are connected to the inner ring surface 111 of the annular body 11. After this step is completed, multiple supporting parts 12 are then connected to the inner ring surface 111 at intervals along the circumferential Y direction.

[0101] The support part 12 and the reinforcing member 13 provided on the annular body 11 do not contact each other to prevent interference between the two during assembly.

[0102] As an optional embodiment, the step of providing the support mold S200 includes:

[0103] The side mold includes multiple arc-shaped plates, each arc-shaped plate is connected to the surface of two adjacent arc-shaped pieces 121 on the side opposite to the inner ring surface 111 along the radial direction X, and the arc-shaped plates and arc-shaped pieces 121 are alternately distributed along the circumferential direction Y.

[0104] Optionally, multiple arc-shaped plates can be coaxially arranged with the annular body 11 to ensure the forming quality of the tower section 100, making the cast tower section 100 more standardized, and ensuring that the thickness of each part of the tower section 100 is the same, so as to prevent safety problems caused by uneven stress in a certain part of the tower section 100.

[0105] Optionally, the length of each curved plate can be set to be the same, or it can be set to be different.

[0106] As an optional embodiment, the step of providing the support mold S200 includes:

[0107] The number of bottom molds is multiple. The bottom mold includes a first protrusion protruding along its own thickness direction. The first protrusion extends along the axial direction Z between two adjacent support parts 12 and the annular body 11 and is connected to the inner ring surface 111 and the arc-shaped piece 121.

[0108] By setting it in this way, a portion of the cast tower section 100 along the Z-axis will not have filler 20. That is, this part of the metal section 10 will not be filled with filler 20. When two adjacent tower sections 100 are connected along the Z-axis, or when flanges or other connecting parts are connected to the Z-axis side of the tower section 100, the absence of filler 20 in this part can reduce safety problems that may arise from welding or other connection processes, and improve safety and reliability.

[0109] Optionally, after connecting two adjacent tower sections 100 along the axial direction Z, or after connecting a flange or other connector on one side of the tower section 100 along the axial direction Z, the metal section 10 can be grouted with building grout to form a filler 20 to improve the connection strength.

[0110] As an optional embodiment, the step of pouring grout S300 into the cavity includes:

[0111] The number of top molds is multiple. The top mold includes a second protrusion protruding along its own thickness direction. The second protrusion extends along the axial direction Z between two adjacent support parts 12 and the annular body 11 and connects to the inner ring surface 111 and the arc-shaped piece 121.

[0112] Optionally, the top mold and the bottom mold can have the same structure, that is, the second protrusion and the first protrusion can have the same structure.

[0113] Setting the top mold to this structure serves the same purpose as the bottom mold, and will not be elaborated further here.

[0114] This application embodiment also provides a tower 1, including the tower section 100 as described above and / or the tower section 100 formed by the forming method of the tower section 100 as described above.

[0115] The tower 1 of this application embodiment can be formed by splicing together the above-mentioned formed tower segments 100. Since the tower segments 100 are easy to construct and conducive to improving connection strength and rigidity, ensuring forming quality and reducing costs, the tower 1 provided by this application embodiment can improve its strength and rigidity, and ensure forming quality and reduce costs.

[0116] Optionally, two adjacent tower sections 100 are spliced ​​along their axial direction Z. Since the upper and lower ends of the tower sections 100 along the axial direction Z are not filled with filler 20, there is a part of the spliced ​​tower sections 100 without filler 20 at the joint. In this case, an annular mold can be provided, which is connected to the side of the arc-shaped piece 121 away from the annular body 11 and forms a casting space at the joint. Grout is poured into the casting space again. After the grout solidifies, filler 20 is formed. Filler 20 is connected to the annular mold and the metal cylinder section 10, and then the annular mold is removed.

[0117] Optionally, two or more tower sections 100 can be joined together before casting. Alternatively, all tower sections 100 can be joined together before casting.

[0118] Optionally, a pouring hole can be provided on one side of the annular mold along the circumferential Y direction, and an overflow hole can be provided on the opposite side of the pouring hole along the circumferential Y direction. When pouring grout, grout is poured into the pouring hole until grout flows out of the overflow hole, at which point pouring stops. This arrangement helps to ensure that the annular joint is filled with grout, improving work efficiency and avoiding waste.

[0119] Optionally, the annular mold can be a continuous annular structure, connected to the surface of each arcuate piece 121 on the side opposite to the inner annular surface 111 along the radial X direction. Of course, the annular mold can also include multiple sub-annular components, connecting each arcuate plate to the surface of two adjacent arcuate pieces 121 on the side opposite to the inner annular surface 111 along the radial X direction, with the arcuate plates and arcuate pieces 121 alternating along the circumferential Y direction.

[0120] This application also provides a wind turbine generator set, including the tower 1 as described above.

[0121] Because the tower 1 provided in this application embodiment can improve its strength and rigidity, and ensure molding quality and reduce cost, it can improve the overall strength and rigidity of the wind turbine generator set, ensure molding quality and reduce cost.

[0122] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This 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 section (100), characterized in that, include: A metal cylindrical section (10) includes an annular body (11) and a plurality of support parts (12). The annular body (11) has an inner annular surface (111) and an outer annular surface (112) that are arranged opposite to each other in its radial direction (X). The plurality of support parts (12) are distributed at intervals along the circumferential direction (Y) of the annular body (11) and are respectively connected to the inner annular surface (111). Each support part (12) includes an arc-shaped piece (121) and a support member (122). The arc-shaped piece (121) is spaced apart from the inner annular surface (111) in the radial direction (X). The support member (122) is connected between the arc-shaped piece (121) and the inner annular surface (111). The filling body (20) is filled in the receiving cavity (10a) formed by the two adjacent support parts (12) and the annular body (11). The filling body (20) is connected to the annular body (11) and the support parts (12). Along the radial direction (X), the surface of the filling body (20) facing away from the inner annular surface (111) and the surface of the arc-shaped piece (121) facing away from the inner annular surface (111) are located on the same annular surface. The metal cylindrical section (10) further includes a plurality of reinforcing members (13), and each of the receiving cavities (10a) is provided with a reinforcing member (13). The reinforcing member (13) provided in the receiving cavity (10a) has one end connected to the inner annular surface (111) in the radial direction (X) and the other end extending into the filler (20). At least a portion of the arc-shaped piece (121) is connected with a plurality of reinforcing members (13). The reinforcing member (13) connected to the arc-shaped piece (121) has one end connected to the arc-shaped piece (121) in the radial direction (X) and the other end extending into the filler (20).

2. The tower section (100) according to claim 1, characterized in that, Along the axial direction (Z) of the annular body (11), the orthographic projection of the support (12) is either a T-shaped structure or an L-shaped structure.

3. The tower section (100) according to claim 1, characterized in that, The annular surface is coaxially arranged with the annular body (11).

4. The tower section (100) according to claim 1, characterized in that, The support (122) has a through hole (122a) extending along the circumferential direction (Y) to allow two adjacent receiving cavities (10a) to communicate in the circumferential direction (Y).

5. The tower section (100) according to claim 1, characterized in that, The filler (20) includes concrete.

6. A method for forming a tower section (100), characterized in that, include: A metal cylindrical section (10) is provided, the metal cylindrical section (10) including an annular body (11) and a plurality of support portions (12). The annular body (11) has an inner annular surface (111) and an outer annular surface (112) arranged opposite to each other in its radial direction (X). The plurality of support portions (12) are distributed at intervals along the circumferential direction (Y) of the annular body (11) and are respectively connected to the inner annular surface (111). The support portion (12) includes an arc-shaped piece (121) and a support member (122). The arc-shaped piece (121) is spaced apart from the inner ring surface (111) in the radial direction (X). The support member (122) is connected between the arc-shaped piece (121) and the inner ring surface (111). The metal cylindrical section (10) also includes a plurality of reinforcing members (13). One end of the reinforcing member (13) in the radial direction (X) is connected to the inner ring surface (111), or one end of the reinforcing member (13) in the radial direction (X) is connected to the arc-shaped piece (121). A support mold is provided, the support mold including a top mold, a bottom mold and a side mold, the bottom mold is connected to one side of the metal cylinder segment (10) along the axial direction (Z) of the annular body (11), the side mold is connected to the surface of the arc-shaped piece (121) along the radial direction (X) away from the inner annular surface (111), the bottom mold, the side mold and the metal cylinder segment (10) surround to form a cavity; Grout is poured into the cavity, and the top mold is connected to the metal cylinder section (10) on the other side along the axial direction (Z). The grout solidifies and forms a filler (20), which is connected to the metal cylinder section (10) and the support mold. Remove the aforementioned support mold.

7. The method for forming the tower section (100) according to claim 6, characterized in that, The step of providing the metal cylindrical section (10) includes: A metal material plate is provided, and the metal material plate is rolled to form the annular body (11) having the inner annular surface (111) and the outer annular surface (112). The support member (122) is connected to the inner annular surface (111) on one side along the radial direction (X) and to the arc-shaped piece (121) on the other side.

8. The method for forming the tower section (100) according to claim 6, characterized in that, The step of providing the metal cylindrical section (10) includes: A plurality of reinforcing members (13) are provided, one end of which is connected to the inner annular surface (111) in the radial direction (X) and the other end is suspended.

9. The method for forming the tower section (100) according to claim 6, characterized in that, The step of providing the support mold includes: The side mold includes multiple arc-shaped plates, each of which is connected to the surface of two adjacent arc-shaped pieces (121) on the side opposite to the inner annular surface (111) along the radial direction (X). Along the circumferential direction (Y), the arc-shaped plates and the arc-shaped pieces (121) are alternately distributed.

10. The method for forming the tower section (100) according to claim 6, characterized in that, The step of providing the support mold includes: The number of bottom molds is multiple, and each bottom mold includes a first protrusion protruding along its own thickness direction. The first protrusion extends along the axial direction (Z) between two adjacent support parts (12) and the annular body (11) and is connected to the inner annular surface (111) and the arc-shaped piece (121).

11. The method for forming the tower section (100) according to claim 10, characterized in that, The step of pouring grout into the cavity includes: The number of top molds is multiple, and each top mold includes a second protrusion protruding along its own thickness direction. The second protrusion extends along the axial direction (Z) between two adjacent support portions (12) and the annular body (11) and connects to the inner annular surface (111) and the arc-shaped piece (121).

12. A tower, characterized in that, The tower section (100) includes the tower section (100) as described in any one of claims 1-5 and / or the tower section (100) as described in any one of claims 6-11, which is formed by the molding method.

13. A wind turbine generator set, characterized in that, Including the tower as described in claim 12.

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