Tower section, tower, wind turbine generator unit, mold, and molding method

Abstract

The application relates to a tower section, a tower, a wind turbine generator set, a mold and a forming method. The tower section comprises a section base body, two or more tower section pieces distributed along the circumferential direction of the section base body, and a connecting assembly. In the circumferential direction, two adjacent tower section pieces are connected through the connecting assembly. The connecting assembly comprises a first connecting piece and a second connecting piece. The first connecting piece is located in the interior of one of the two adjacent tower section pieces, and the second connecting piece is at least partially located in the interior of the other of the two adjacent tower section pieces. The first connecting piece comprises a switching part and an anchoring part. The switching part is connected with the second connecting piece, and the anchoring part is connected with the side of the switching part away from the second connecting piece. The tower section provided by the embodiment of the application is beneficial for transportation and has high safety.

Description

Technical Field

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

[0002] The wind power industry has gradually entered the era of "grid parity," and how to provide a competitive cost per kilowatt-hour has become a pressing issue for all aspects of wind turbine development. Currently, the domestic wind power industry is developing towards "higher towers and larger capacities," both of which place a greater demand on reducing tower costs. At present, in the design phase of reinforced concrete towers, continuous design optimization and process cost reduction are used to lower tower production costs. In the hoisting phase, further process improvements are needed to improve efficiency and shorten hoisting time. Reinforced concrete towers have now reached heights of over 150 meters, and the design of reinforced concrete towers for overall turbine compatibility requires a higher proportion of reinforced concrete to meet stability requirements; therefore, the height of the concrete tower portion is increasing.

[0003] Due to the self-weight and dimensional characteristics of concrete structures, they inevitably involve multiple ring segments and the process of assembling and joining these segments. Therefore, achieving rapid assembly of components between the tower ring segments has become a key technological challenge. Currently, the connection strength of the assembly methods between tower ring segments is low, affecting the safety performance of the tower sections. Summary of the Invention

[0004] This invention provides a tower section, a tower frame, a wind turbine generator set, a mold, and a forming method. The tower section is easy to transport and has high safety.

[0005] On one hand, according to an embodiment of the present invention, a tower section is provided, comprising: a tower section base, including two or more tower sections distributed sequentially along its circumference; a connecting assembly, wherein adjacent two tower sections are connected by the connecting assembly in the circumferential direction, the connecting assembly including a first connector and a second connector, the first connector being located inside one of the adjacent two tower sections, the second connector being at least partially located inside the other of the adjacent two tower sections, the first connector including a transition portion and an anchoring portion, the transition portion being connected to the second connector, and the anchoring portion being connected to the side of the transition portion away from the second connector.

[0006] According to one aspect of the present invention, the anchoring part is rod-shaped and has a first end face and a second end face in its own extending direction. The first end face is disposed facing the transition part, and the maximum vertical distance between the first end face and the second end face is less than the length dimension of the anchoring part.

[0007] According to one aspect of the present invention, the anchoring portion has at least one bending region; the anchoring portion extends at least partially along a curved trajectory, and / or, the anchoring portion extends at least partially along a broken line trajectory.

[0008] According to one aspect of the present invention, the adapter and the anchoring part are detachably connected to each other.

[0009] According to one aspect of the present invention, the adapter includes a first adapter sleeve, and the anchoring portion extends at least partially into the first adapter sleeve and is threadedly connected to the first adapter sleeve.

[0010] According to one aspect of the present invention, the second connector includes a straight screw, and the adapter includes a second adapter sleeve. The straight screw protrudes from the tower section along its own length and extends into the second adapter sleeve for threaded connection with the second adapter sleeve.

[0011] According to one aspect of the present invention, the inner wall surface of the tower segment provided with a straight screw has an operating notch, the length direction of the straight screw intersects with the end face of the tower segment in the circumferential direction, the tower segment forms a support surface facing the end face at the operating notch, and the straight screw is at least partially located in the operating notch and presses against the support surface.

[0012] According to one aspect of the present invention, the connecting assembly further includes a protective component, the protective component including a protective sleeve, the protective sleeve being at least partially located within the tower segment provided with the second connecting member, the protective sleeve being disposed around the straight screw.

[0013] According to one aspect of the present invention, the protective component further includes a reinforcing plate and a plurality of reinforcing ribs. The reinforcing plate is disposed at one end of the protective sleeve that is axially away from the first connecting member and abuts against the supporting surface. The plurality of reinforcing ribs are spaced apart on the outer periphery of the protective sleeve and are respectively connected to the reinforcing plate.

[0014] According to one aspect of the present invention, there are multiple connecting components connecting two adjacent tower sections, and the multiple connecting components are distributed at intervals in the height direction of the tower section base.

[0015] On the other hand, according to an embodiment of the present invention, a tower is provided, including the tower sections described above, wherein two or more tower sections are coaxially arranged and adjacent tower sections are connected to each other.

[0016] In another aspect, according to an embodiment of the present invention, a wind turbine generator set is provided, including the tower described above.

[0017] In another aspect, according to an embodiment of the present invention, a mold is provided, comprising: a mold base, including two or more segmented mold units and a vertical end mold, the two or more segmented mold units being spaced apart around the same axis, the vertical end mold being sandwiched between adjacent two segmented mold units, each segmented mold unit including an inner mold, an outer mold and a bottom mold disposed opposite to each of the two adjacent segmented mold units, the vertical end mold being abutted with each of the two adjacent segmented mold units to form a casting cavity; a connecting assembly, including a first connector and a second connector, the first connector being located in the casting cavity of one of the two adjacent segmented mold units, the second connector being at least partially located in the casting cavity of the other of the two adjacent segmented mold units, the first connector including a transition portion and an anchoring portion, the second connector passing through the vertical end mold and connected to the transition portion, the anchoring portion being connected to the side of the transition portion opposite to the second connector.

[0018] According to another aspect of the present invention, the inner mold of the segmented mold unit provided with the second connector has a protrusion protruding in the direction of the outer mold, and the second connector extends at least partially into the protrusion.

[0019] Furthermore, according to embodiments of the present invention, a method for forming a tower section is proposed, comprising:

[0020] Provide the molds described above;

[0021] Support at least one of the anchoring part and the second connector to lock the relative position of the connecting assembly and the vertical end formwork;

[0022] Slurry is poured into the casting cavity formed by each segmented mold unit and the vertical end mold;

[0023] After the slurry has solidified to the predetermined state, the second connector is removed to separate it from the first connector, the mold base, and the slurry that has reached the predetermined state.

[0024] After the slurry has completely solidified, the vertical end mold and each segment mold unit are separated from the solidified slurry in the corresponding casting cavity.

[0025] According to another aspect of the present invention, before the step of separating the second connector from the first connector, the mold base, and the slurry after the slurry has solidified to a predetermined state after pouring slurry into the casting cavity formed by each segmented mold unit and the vertical end mold, the molding method further includes: screwing the second connector according to a predetermined rotation speed.

[0026] According to embodiments of the present invention, the tower section, tower, wind turbine generator set, mold, and forming method are provided. The tower section includes a section base and a connecting assembly. The section base includes two or more tower segments. The tower section is set separately, which can meet the height restriction requirements for transportation and facilitate the transportation of the tower section. Since the connecting assembly includes a first connector and a second connector, the first connector is located inside one of the two adjacent tower segments, and the second connector is at least partially located inside the other of the two adjacent tower segments. The first connector includes a transition portion that connects to the second connector, so that the two adjacent tower segments can be connected by the connecting assembly. Furthermore, the first connector also includes an anchoring portion, and the anchoring portion is connected to the side of the transition portion away from the second connector. By adding the anchoring portion, the connection area between the first connector and the tower segment can be increased, and the connection strength with the tower segment can be improved. This ensures the connection strength between the two adjacent tower segments and avoids the risk of separation and connection failure of the two adjacent tower segments due to the separation of the first connector from the tower segment, thereby improving the safety performance of the tower section. Attached Figure Description

[0027] The features, advantages and technical effects of exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the structure of a wind turbine generator set according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of a tower according to an embodiment of the present invention;

[0030] Figure 3 This is an exploded view of a tower section according to an embodiment of the present invention;

[0031] Figure 4 This is a partial structural schematic diagram of a tower section according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the first connector according to an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the anchoring part according to an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the anchoring part according to another embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the second connector according to an embodiment of the present invention;

[0036] Figure 9 A schematic diagram illustrating the cooperation between the protective component and the second connector according to an embodiment of the present invention;

[0037] Figure 10 This is a schematic diagram of the structure of a protective component according to another embodiment of the present invention;

[0038] Figure 11 This is a schematic diagram illustrating the cooperation between the protective component and the second connector according to another embodiment of the present invention;

[0039] Figure 12 This is an exploded view of a mold according to an embodiment of the present invention;

[0040] Figure 13 This is a partial structural schematic diagram of a mold according to an embodiment of the present invention;

[0041] Figure 14 This is a schematic flowchart of a tower section forming method according to an embodiment of the present invention.

[0042] in:

[0043] 1-Tower;

[0044] 100-Tower section;

[0045] 10-Cylinder section substrate; 11-Tower section segment; 111-Operating notch; 112-Support surface;

[0046] 20 - Connecting component; 21 - First connector; 211 - Adapter; 211a - First adapter sleeve; 211b - Second adapter sleeve; 212 - Anchoring part; 212a - First end face; 212b - Second end face; 212c - Bending area;

[0047] 22-Second connecting piece; 221-Straight screw;

[0048] 23-Protective components; 231-Protective sleeve; 232-Reinforcing plate; 233-Reinforcing rib;

[0049] 30 - Connector;

[0050] 2-Nacelle; 3-Generator; 4-Impeller; 401-Hub; 402-Blade;

[0051] 5- Mold; 51- Segmented mold unit; 511- Inner mold; 512- Outer mold; 513- Bottom mold; 52- Vertical end mold; 521- Clearance hole;

[0052] 53 - Cast cavity; 54 - Protrusion;

[0053] X - Circumferential direction; Y - Height direction; H - Maximum vertical distance; aa - Curved trajectory; bb - Broken line trajectory; cc - End face in the circumferential direction.

[0054] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0055] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. Numerous specific details are set forth in the following detailed description in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. In the accompanying drawings and the following description, at least some well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the invention; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0056] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structures of the tower section, tower frame, wind turbine generator, mold, and forming method of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0057] like Figure 1 As shown, this embodiment of the invention provides a wind turbine generator set, which mainly includes a tower 1, a nacelle 2, a generator 3, and a rotor 4. The tower 1 is connected to the wind turbine foundation, the nacelle 2 is located at the top of the tower 1, and the generator 3 is located on the nacelle 2. The generator 3 can be located outside the nacelle 2 to form a direct-drive wind turbine generator set. Of course, in some embodiments, the generator 3 can also be located outside the nacelle 2 to form a doubly-fed wind turbine generator set. The rotor 4 includes a hub 401 and multiple blades 402 connected to the hub 401. The rotor 4 is connected to the rotor of the generator 3 through its hub 401. When wind power acts on the blades 402, it drives the entire rotor 4 and the rotor of the generator to rotate, thereby meeting the power generation requirements of the wind turbine generator set.

[0058] like Figure 2 As shown, this embodiment of the invention also provides a tower 1, which includes two or more tower sections 100. The two or more tower sections 100 are coaxially arranged and adjacent tower sections 100 are connected to each other. The number of tower sections 100 included in the tower 1 can be determined according to the model of the wind turbine generator and the height of a single tower section 100. This application does not impose a specific quantity limit.

[0059] Since the nacelle 2, generator 3, and rotor 4 of the wind turbine are all supported on the tower 1, the load-bearing capacity of the tower 1 is subject to higher requirements when the wind turbine is taller or has a larger power output. The tower 1 needs to have larger axial and radial dimensions. To meet the transportation requirements of the tower 1, at least a portion of the tower sections 100 need to be divided into tower segments 11. After transportation to the site, the tower segments 11 are first spliced ​​to form the corresponding tower sections 100, and then the tower sections 100 are stacked to form the tower 1.

[0060] In traditional tower 1, the tower sections 11 of the tower section 100 are connected by steel bars and high-strength grout during splicing, which is called "wet connection". This connection method results in low connection strength between the tower sections 11, affecting the safety performance of the tower section 100.

[0061] In view of the above-mentioned technical problems, the present invention also provides a new tower section 100, which is easy to transport and has high safety.

[0062] like Figure 3 as well as Figure 4 As shown, the tower section 100 includes a section base 10 and a connecting assembly 20. The section base 10 includes two or more tower segments 11 successively distributed along its circumferential direction X. Adjacent tower segments 11 are connected by the connecting assembly 20 along the circumferential direction X of the section base 10. The connecting assembly 20 includes a first connector 21 and a second connector 22. The first connector 21 is located inside one of the adjacent tower segments 11, and the second connector 22 is at least partially located inside the other of the adjacent tower segments 11. The first connector 21 includes a transition portion 211 and an anchoring portion 212. The transition portion 211 is connected to the second connector 22, and the anchoring portion 212 is connected to the side of the transition portion 211 opposite to the second connector 22.

[0063] The tower section 100 provided in this embodiment of the invention has a base 10 comprising two or more tower sections 11. The tower section 100 is configured in separate parts, which can meet the height restriction requirements for transportation and facilitates the transportation of the tower section 100. Since the connecting assembly 20 includes a first connector 21 and a second connector 22, the first connector 21 is located inside one of the two adjacent tower sections 11, and the second connector 22 is at least partially located inside the other of the two adjacent tower sections 11. The adapter 211 included in the first connector 21 is connected to the second connector 22, so that two adjacent tower sections 11 can be connected by the connecting assembly 20 to form the tower section 100. Furthermore, the first connector 21 also includes an anchoring part 212, which is connected to the side of the adapter 211 away from the second connector 22. By adding the anchoring part 212, the connection area between the first connector 21 and the tower section 11 can be increased, and the connection strength with the tower section 11 can be improved. This ensures the connection strength between two adjacent tower sections 11, avoids the risk of separation and connection failure of two adjacent tower sections 11 due to the separation of the first connector 21 and the tower section 11, and improves the safety performance of the tower section 100.

[0064] As an optional implementation, the tower section 100 provided in this embodiment of the invention has multiple connecting components 20 connecting adjacent tower sections 11, with the multiple connecting components 20 spaced apart along the height direction Y of the tower section base 10. By providing multiple connecting components 20, the connection strength between adjacent tower sections 11 can be ensured, thereby ensuring the safety performance of the tower section 100.

[0065] like Figure 5 as well as Figure 6 As shown, in an optional embodiment, the tower section 100 provided in this invention has an anchoring portion 212 that is rod-shaped and has a first end face 212a and a second end face 212b in its extending direction. The first end face 212a faces the transition portion 211, and the maximum vertical distance H between the first end face 212a and the second end face 212b is less than the length of the anchoring portion 212. This configuration allows the anchoring portion 212 to have a non-linear structure, further increasing the contact and connection area between the anchoring portion 212 and the tower section 11.

[0066] As an optional implementation, the tower section 100 provided in this embodiment of the invention has an anchoring portion 212 having at least one bending region 212c, and the anchoring portion 212 extends at least partially along a curved trajectory aa. This arrangement increases the contact and connection area between the anchoring portion 212 and the corresponding tower section 11, improves the connection strength between the second connector 22 and the tower section 11, and prevents the second connector 22 from separating from the corresponding tower section 11 under the action of the first connector 21, thus avoiding potential safety hazards to the entire tower section 100.

[0067] Optionally, the anchoring part 212 can be a rod-shaped structure with at least one bending region 212c. This facilitates the connection with the corresponding tower section 11, while reducing the space occupied by the anchoring part 212 and minimizing the impact of the anchoring part 212 on the wall thickness of the tower section 11.

[0068] Optionally, the bending direction of the bending area 212c of the anchoring portion 212 can be bent radially along the tower section 100. With the above arrangement, the anchoring portion 212 can extend circumferentially X and have multiple bending areas 212c, which can increase the length of the anchoring portion 212, so that it is not limited by the wall thickness of the tower section 11, and ensure the reliable performance of the connection between each tower section 11 of the tower section 100 through the connecting assembly 20.

[0069] For example, the anchoring portion 212 can include two bending areas 212c, which can be bent radially in opposite directions to improve the connection strength between the first connector 21 as a whole and the corresponding tower segment 11. It is understood that having two bending areas 212c is only one optional implementation; in some other embodiments, the number of bending areas 212c can be multiple, and no specific numerical limitation is made here.

[0070] As an optional implementation, the adapter 211 and the anchoring part 212 are detachably connected to each other. This arrangement facilitates the forming of the adapter 211, and allows for the provision of corresponding anchoring parts 212 based on the dimensions of the tower section 100 to be formed and the connection strength requirements between two adjacent tower sections 11, thus making the connecting assembly 20 more versatile.

[0071] In some alternative embodiments, one of the adapter 211 and the anchoring part 212 can be inserted into the interior of the other and detachably connected to each other. With the above arrangement, the detachable connection requirement and connection strength between the two can be guaranteed.

[0072] In one optional embodiment, the adapter 211 includes a first adapter sleeve 211a, and the anchoring part 212 at least partially extends into the first adapter sleeve 211a and is threadedly connected to the first adapter sleeve 211a. This configuration ensures a detachable connection between the adapter 211 and the anchoring part 212, provides good anti-detachment performance, and facilitates assembly and disassembly. It is understood that in some examples, the anchoring part 212 may also at least partially extend into the first adapter sleeve 211a and be press-fitted to it, as long as the connection strength requirements between the two are met.

[0073] It is understood that the tower section 100 provided in the above embodiments of the present invention is illustrated by taking at least a portion of its anchoring part 212 as an example of extending along the curved trajectory aa. It is understood that this is an optional implementation method.

[0074] like Figure 7 As shown, in some embodiments, at least a portion of the anchoring part 212 can extend along the broken line trajectory bb, which can also enhance the connection strength between the first connector 21 as a whole and the tower section 11, and ensure the stability of the tower section 100.

[0075] like Figure 5 , Figure 8 As shown, in some optional embodiments, the tower section 100 provided in the above embodiments of the present invention has a second connecting member 22 including a straight screw 221 and an adapter 211 including a second adapter sleeve 211b. The straight screw 221 protrudes from the tower section 11 along its own length direction and extends into the second adapter sleeve 211b to be threadedly connected to the second adapter sleeve 211b.

[0076] By including a straight screw 221 in the second connector 22, the connection requirements between the second connector 22 and the adapter 211 can be met. At the same time, the use of a straight screw 221 can improve the splicing efficiency of the tower section 11 during assembly. Furthermore, the part of the tower section 11 used to accommodate the straight screw 221 is a straight hole section, which has a simple structure and is conducive to the forming of the tower section 11.

[0077] like Figures 4 to 8As shown, in some optional embodiments, the inner wall surface of the tower segment 11 with the straight screw 221 has an operation notch 111. The length direction of the straight screw 221 intersects with the circumferential end face cc of the tower segment 11. The tower segment 11 forms a support surface 112 facing the circumferential end face cc at the operation notch 111. The straight screw 221 is at least partially located within the operation notch 111 and presses against the support surface 112. This arrangement allows the straight screw 221 to be exposed on the inner wall surface of the tower segment 11, facilitating its removal or insertion from the tower segment 11 and enabling assembly / disassembly between adjacent tower segments 11.

[0078] In some alternative embodiments, the operating notch 111 can be a right-angle notch, and the extension direction of the straight screw 221 is perpendicular to the support surface 112. With the above arrangement, the contact area between the nut of the straight screw 221 and the support surface 112 can be increased, avoiding the risk of the support surface 112 cracking and being damaged due to point contact between the straight screw 221 and the support surface 112.

[0079] like Figure 9 as well as Figure 10 As shown, in an optional embodiment, the tower section 100 provided in this invention includes a protective component 23 in the connecting assembly 20. The protective component 23 includes a protective sleeve 231, which is at least partially located within the tower section 11 where the second connector 22 is provided. The protective sleeve 231 surrounds the straight screw 221. By providing the protective sleeve 231, during the molding of the tower section 100, the straight screw 221 is first passed through the protective sleeve 231, isolating the straight screw 221 from the concrete used to mold the tower section 11. After the concrete has initially set, the straight screw 221 is pulled out, forming an insertion hole for inserting the straight screw 221 within the tower section 11. This allows the straight screw 221 to be inserted into the tower section 11 and connected to the transition part 211 located within another tower section 11 during the assembly of the tower sections 11.

[0080] Optionally, the protective sleeve 231 can be a flexible rubber protective sleeve. Of course, this is an optional implementation method, but it is not limited to the above method. In some embodiments, the protective sleeve 231 can also be a rigid sleeve.

[0081] like Figure 10 as well as Figure 11As shown, when the protective sleeve 231 is a rigid sleeve, in some optional embodiments, the protective component 23 may further include a reinforcing plate 232 and a plurality of reinforcing ribs 233. The reinforcing plate 232 is disposed at the end of the protective sleeve 231 that is axially away from the first connecting member 21 and abuts against the supporting surface 112. The plurality of reinforcing ribs 233 are distributed at intervals on the outer periphery of the protective sleeve 231 and are respectively connected to the reinforcing plate 232. By providing the reinforcing plate 232 and the reinforcing ribs 233, the strength of the tower section 11 in the area surrounding the protective sleeve 231 can be increased, thereby increasing the protective effect on the straight screw 221.

[0082] As an optional implementation, the tower section 100 provided in this embodiment of the invention has a connector 30 filling the joint between two adjacent tower sections 11. The connector 30 is used to connect the two adjacent tower sections 11 to improve the overall strength of the tower section 100. The connector 30 has shear resistance and bending resistance. In some optional embodiments, the connector 30 may include epoxy resin.

[0083] The tower section 100 provided in this embodiment of the invention allows two adjacent tower sections 11 to be connected by a connecting assembly 20. Furthermore, the first connecting member 21 also includes an anchoring part 212. By adding the anchoring part 212, the connection area between the first connecting member 21 and the tower section 11 can be increased, thereby improving the connection strength between them. This ensures the connection strength between two adjacent tower sections 11, avoids the risk of separation and connection failure of the two adjacent tower sections due to the separation of the first connecting member 21 from the tower section 11, and improves the safety performance of the tower section 100.

[0084] Meanwhile, when the second connecting member 22 includes a straight screw 221, the connection method between the first connecting member 21 and the second connecting member 22 of the tower section 100 provided in this embodiment of the invention can reduce the production precision standard of the tower section 100 compared to the arc bolt connection method. This effectively avoids subsequent installation problems caused by uneven misalignment or non-human movement of the first connecting member 21 and the second connecting member 22 during the production process of the connecting assembly 20. This eliminates the need for a quality-controlled "factory-based" production scheme for the tower section 100.

[0085] Furthermore, the tower 1 provided in this embodiment of the invention, because it includes the tower section 100 provided in the above embodiments, is advantageous for production, transportation and assembly, with high assembly efficiency and high safety performance, so that the wind turbine generator set in which it is located has high safety performance and power generation efficiency.

[0086] like Figure 12 as well as Figure 13As shown, in another aspect, the present invention also provides a mold 5, which can be used to form the tower section 100 provided in the above embodiments. The mold 5 includes a mold base and a connecting assembly 20. The mold base includes two or more segmented mold units 51 and a vertical end mold 52. The two or more segmented mold units 51 are distributed at intervals around the same axis. The vertical end mold 52 is sandwiched between two adjacent segmented mold units 51. The segmented mold unit 51 includes an inner mold 511, an outer mold 512 and a bottom mold 513 arranged opposite to each other. The vertical end mold 52 is connected to each of the two adjacent segmented mold units 51 to form a casting cavity 53. The connecting assembly 20 includes a first connector 21 and a second connector 22. The first connector 21 is located in the casting cavity 53 of one of the two adjacent segmented mold units 51, and the second connector 22 is located at least partially in the casting cavity 53 of the other of the two adjacent segmented mold units 51. The first connector 21 includes a transition portion 211 and an anchoring portion 212. The second connector 22 passes through the vertical end mold 52 and is connected to the transition portion 211. The anchoring portion 212 is connected to the side of the transition portion 211 opposite to the second connector 22.

[0087] The mold 5 provided in this embodiment of the invention can be used to pour concrete into the pouring cavity 53 formed by each segmented mold unit 51 and the corresponding vertical end mold 52. After the concrete has solidified, a tower segment 11 is formed in each pouring cavity 53. The first connecting member 21 and the second connecting member 22 can be retained in the corresponding formed tower segment 11, so that two adjacent tower segments 11 are connected by the connecting component 20 to form a tower section 100. This can meet the production needs of the tower section 100, effectively reduce the procurement cost of the mold 5, and lower the threshold for on-site construction operations.

[0088] Furthermore, during the molding process, the second connector 22 can be removed before the concrete has fully solidified and after the insertion holes for inserting the second connector 22 have been formed. When each tower section 11 is transported to the designated position, the second connector 22 can be inserted into the insertion holes formed in the corresponding tower section 11 and connected to the transition part 211 of the corresponding first connector 21. This facilitates the molding of the tower section 100 and ensures the transportation of the molded tower section 100 and the connection requirements of each tower section 11.

[0089] Meanwhile, since two adjacent segmented mold units 51 form a casting cavity 53 with the same vertical end mold 52, and the vertical end mold 52 is clamped in the bottom mold 513, inner mold 511, and outer mold 512, it ensures the contact of concave and convex surfaces at the same cross-section position during the casting stage, which is beneficial for the assembly stage. Its positioning mode results in high interlocking curves of the mating surfaces of two adjacent tower segments 11 after molding. The strength requirements of the mold 5 are reduced, ensuring rapid execution during the tower segment 100 assembly stage and improving work efficiency.

[0090] As an optional implementation, the mold 5, the first connector 21 and the second connector 22 of the connecting assembly 20 provided in this embodiment of the invention can adopt the structural forms of the tower section 100 in the above embodiments, which will not be repeated here.

[0091] As an optional implementation, this embodiment of the invention provides a mold 5, whose connecting component 20 may also include a protective component 23. The protective component 23 may include a protective sleeve 231. Furthermore, the protective component 23 may also include a reinforcing plate 232 and a reinforcing rib 233. The structural forms of the protective sleeve 231, the reinforcing plate 232, and the reinforcing rib 233, as well as their respective cooperation relationships, are the same as those in the tower section 100 in the above embodiments, and will not be repeated here.

[0092] The mold 5 provided in this embodiment of the invention does not have a specific limitation on the number of its segmented mold units 51 and vertical end molds 52. Specifically, it can be set according to the number of tower segments 11 to be formed.

[0093] As an optional implementation, the inner mold 511 of the segmented mold unit 51, which is provided with the second connector 22, has a protrusion 54 protruding in the direction of the outer mold 512, and the second connector 22 extends at least partially into the protrusion 54. By providing the protrusion 54, an operation cut 111 can be formed at the corresponding position when forming the tower segment 11. The form of the operation cut 111 is as described in the above embodiments in the tower section 100, which facilitates the assembly and disassembly of the second connector 22 during and after the formation of the tower segment 11.

[0094] Optionally, the vertical end mold 52 is provided with a clearance hole 521 for the second connector 22 to pass through.

[0095] like Figure 14 As shown, in another aspect, the present invention also provides a method for forming a tower section 100, comprising the following steps:

[0096] S100. Provide mold 5, which may be one of the above embodiments;

[0097] S200, support at least one of the anchoring part 212 and the second connector 22 to lock the relative position of the connecting assembly 20 and the vertical end mold 52.

[0098] S300, pour grout into the casting cavity 53 formed by each segmented mold unit 51 and the vertical end mold 52;

[0099] S400. After the slurry has solidified to the predetermined state, the second connector 22 is removed to separate it from the first connector 21, the mold base, and the slurry after it has solidified to the predetermined state.

[0100] S500. After the slurry has completely cured, separate the vertical end mold 52 and each segment mold unit 51 from the cured slurry in the corresponding casting cavity 53.

[0101] In step S100, the provided mold 5 can be one of the molds 5 mentioned in the above embodiments.

[0102] In step S200, only the anchoring part 212 can be supported, or only the second connecting member 22 can be supported. Of course, both the anchoring part 212 and the second connecting member 22 can be supported at the same time to lock the relative position of the connecting component 20 and the vertical end mold 52, so as to prevent the connecting component 20 from falling or flipping during the concrete pouring process.

[0103] Optionally, when supporting the anchorage 212, steel bars or prestressed tendons can be installed in the cast cavity 53 to support the anchorage 212.

[0104] Optionally, when supporting the second connector 22, a protrusion 54 protruding in the direction of the outer mold 512 can be provided on the inner mold 511 of the segmented mold unit 51 where the second connector 22 is located. The second connector 22 extends at least partially into the protrusion 54 to support the second connector 22.

[0105] Optionally, in step S300, the grout poured into the casting cavity 53 can be concrete grout, or other grout liquid that can solidify to form tower sections 11 with a predetermined strength.

[0106] Optionally, in step S400, the predetermined state mentioned is that after the concrete has initially set but before it has fully set, it can ensure that the second connector 22 is separated from the concrete, and at the same time, when the second connector 22 is pulled out, the concrete in the corresponding area will not collapse, thus preserving a mating area that matches the shape of the second connector 22.

[0107] Optionally, in step S500, the tower section formed has each tower segment 11 separated for easy transportation. After being transported to the predetermined location, each second connector 22 can be inserted into the corresponding tower segment 11 and connected to the adapter 211 of the first connector 21 in another tower segment 11.

[0108] As an optional implementation, the tower section 100 forming method provided in this embodiment of the invention further includes, after step S300 and before step S400, screwing the second connector 22 at a predetermined rotation speed. This is to prevent the second connector 22 from being fixed and unable to be pulled out when the slurry solidifies. The specific rotation speed is not limited, as long as it prevents the second connector 22 from being fixed when the slurry solidifies.

[0109] Optionally, in step S500, after the slurry has completely solidified, the vertical end mold 52 and each segment mold unit 51 are separated from the solidified slurry in the corresponding casting cavity 53 to form two or more tower segments 11.

[0110] Optionally, after step S500, the method provided in this embodiment of the invention further includes inserting the second connector 22 into the tower segment 11 and connecting it with the second connector 21 to connect two adjacent tower segments 11.

[0111] Optionally, after step S500, the method provided in this embodiment of the invention further includes filling slurry between two adjacent tower sections 11, and after the slurry solidifies, forming a connector 30, which is used to connect two adjacent tower sections.

[0112] The grout filling between two adjacent tower sections 11 may differ from the grout poured into the casting cavity 53 in step S300. The grout filling between two adjacent tower sections 11 may be an adhesive with tensile and shear strength. In some optional examples, a high-strength epoxy adhesive may be used; however, this is only an optional example and is not limited to this, as long as the cured joint 30 meets the bonding strength requirements between the two adjacent tower sections 11.

[0113] The tower section 100 forming method provided in this embodiment of the invention, by executing steps S100 to S500, can form the tower section 100 as provided in the above embodiments. The forming method is simple, not limited by factory space, and allows adjacent tower sections 11 of the formed tower section 100 to be connected by connecting components 20, resulting in high connection strength. Simultaneously, the mating surface curves of adjacent tower sections 11 have high interlocking properties. When splicing is required after transportation to the site, the second connecting member 22 can be inserted into the corresponding tower section 11 and connected to the transition part 211 of the first connecting member 21 for easy assembly, disassembly, and transportation.

[0114] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention 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: The cylindrical base (10) includes two or more tower sections (11) that are successively distributed along its own circumference (X). A connecting assembly (20) is provided, in the circumferential direction (X), by which two adjacent tower sections (11) are connected. The connecting assembly (20) includes a first connector (21) and a second connector (22). The first connector (21) is located inside one of the two adjacent tower sections (11), and the second connector (22) is at least partially located inside the other of the two adjacent tower sections (11). The structure includes a transition part (211) and an anchoring part (212). The transition part (211) is connected to the second connector (22). The anchoring part (212) is connected to the side of the transition part (211) away from the second connector (22). The transition part (211) and the anchoring part (212) are embedded in the interior of one of the two adjacent tower sections (11). The transition part (211) and the anchoring part (212) are detachably connected to each other. The anchoring part (212) has at least one bending area (212c), and the bending direction of the bending area (212c) is along the radial direction of the tower section (100).

2. The tower section (100) according to claim 1, characterized in that, The anchoring part (212) is rod-shaped and has a first end face (212a) and a second end face (212b) in its extension direction. The first end face (212a) is disposed facing the adapter part (211). The maximum vertical distance (H) between the first end face (212a) and the second end face (212b) is less than the length dimension of the anchoring part (212).

3. The tower section (100) according to claim 2, characterized in that, The anchorage (212) extends at least partially along a curved trajectory (aa), and / or the anchorage (212) extends at least partially along a broken trajectory (bb).

4. The tower section (100) according to claim 1, characterized in that, The adapter (211) includes a first adapter sleeve (211a), and the anchoring part (212) extends at least partially into the first adapter sleeve (211a) and is threadedly connected to the first adapter sleeve (211a).

5. The tower section (100) according to any one of claims 1 to 4, characterized in that, The second connector (22) includes a straight screw (221), and the adapter (211) includes a second adapter sleeve (211b). The straight screw (221) protrudes from the tower section (11) along its own length direction and extends into the second adapter sleeve (211b) to be threadedly connected to the second adapter sleeve (211b).

6. The tower section (100) according to claim 5, characterized in that, The inner wall surface of the tower section (11) provided with the straight screw (221) has an operation notch (111). The length direction of the straight screw (221) intersects with the end face (cc) of the tower section (11) in the circumferential (X) direction. The tower section (11) forms a support surface (112) facing the end face at the operation notch (111). The straight screw (221) is at least partially located in the operation notch (111) and presses against the support surface (112).

7. The tower section (100) according to claim 6, characterized in that, The connecting assembly (20) further includes a protective component (23), which includes a protective sleeve (231) located at least partially within the tower section (11) where the second connecting member (22) is provided, and the protective sleeve (231) is arranged around the straight screw (221).

8. The tower section (100) according to claim 7, characterized in that, The protective component (23) further includes a reinforcing plate (232) and a plurality of reinforcing ribs (233). The reinforcing plate (232) is disposed on one end of the protective sleeve (231) away from the first connector (21) in its own axial direction and presses against the support surface (112). The plurality of reinforcing ribs (233) are distributed at intervals on the outer periphery of the protective sleeve (231) and are respectively connected to the reinforcing plate (232).

9. The tower section (100) according to any one of claims 1 to 4, characterized in that, The number of connecting components (20) connecting two adjacent tower sections (11) is multiple, and the multiple connecting components (20) are distributed at intervals in the height direction (Y) of the tower section base (10).

10. A tower (1), characterized in that, It includes two or more tower sections (100) as described in any one of claims 1 to 9, wherein the two or more tower sections (100) are coaxially arranged and adjacent tower sections (100) are interconnected.

11. A wind turbine generator set, characterized in that, Including the tower (1) as described in claim 10.

12. A mold (5), characterized in that, include: The mold base includes two or more segmented mold units (51) and a vertical end mold (52). The two or more segmented mold units (51) are distributed at intervals around the same axis. The vertical end mold (52) is sandwiched between two adjacent segmented mold units (51). The segmented mold unit (51) includes an inner mold (511), an outer mold (512), and a bottom mold (513) arranged opposite to each other. The vertical end mold (52) is connected to each of the two adjacent segmented mold units (51) to form a casting cavity (53). The connecting assembly (20) includes a first connector (21) and a second connector (22). The first connector (21) is located within the casting cavity (53) of one of the two adjacent segmented mold units (51), and the second connector (22) is at least partially located within the casting cavity (53) of the other of the two adjacent segmented mold units (51). The first connector (21) includes a transition portion (211) and an anchoring portion (212). The second connector (22) passes through the vertical end mold (52) and is connected to the transition portion (211). The anchoring portion (212) is connected to the side of the transition portion (211) away from the second connector (22). The anchoring portion (212) has at least one bending area (212c), and the bending direction of the bending area (212c) is along the arrangement direction of the inner mold (511) and the outer mold (512). The adapter (211) and the anchor (212) are embedded in the casting cavity (53) of one of the two adjacent segmented mold units (51), and the adapter (211) and the anchor (212) are detachably connected to each other.

13. The mold (5) according to claim 12, characterized in that, The inner mold (511) of the segmented mold unit (51) provided with the second connector (22) has a protrusion (54) protruding in the direction of the outer mold (512), and the second connector (22) extends at least partially into the protrusion (54).

14. A method for forming a tower section (100), characterized in that, include: Provide the mold (5) as described in claim 12 or 13; At least one of the anchoring part (212) and the second connector (22) is supported to lock the relative position of the connecting assembly (20) and the vertical end mold (52); Slurry is poured into the casting cavity (53) formed by each of the segmented mold units (51) and the vertical end mold (52); After the slurry has solidified to a predetermined state, the second connector (22) is removed to separate it from the first connector (21), the mold base, and the slurry after it has solidified to the predetermined state. After the slurry has completely solidified, the vertical end mold (52) and each of the segmented mold units (51) are separated from the solidified slurry in the corresponding casting cavity (53).

15. The molding method according to claim 14, characterized in that, Before the step of separating the second connector (22) from the first connector (21), the mold base, and the slurry after the slurry has solidified to a predetermined state, after pouring slurry into the casting cavity (53) formed by each of the segmented mold units (51) and the vertical end mold (52), the molding method further includes: Tighten the second connector (22) according to the predetermined speed.

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