Spliced tower drum and manufacturing method thereof

Abstract

The invention provides a spliced tower drum and a manufacturing method thereof, and relates to the technical field of installation. The spliced tower drum comprises at least two tower drum modules, the first side of each tower drum module is provided with a first connecting structure, each first connecting structure comprises an elastic buckle, and the second side of each tower drum module is provided with a second connecting structure; the connecting device comprises a first part and a second part, the first part comprises a clamping groove matched with the elastic buckle, the elastic buckle is connected with the clamping groove in a buckled mode so that the first part can be connected with the first connecting structure, and the second part is detachably connected with the second connecting structure; and every two adjacent tower drum modules are connected with the first connecting structures and the second connecting structures of the two tower drum modules through the connecting devices so as to be locked and connected.

Description

Technical Field

[0001] This application relates to the field of tower splicing technology, and in particular to a spliced ​​tower and its manufacturing method. Background Technology

[0002] Currently, with the increase in wind turbine power, turbine hub height, and rotor diameter, concrete-steel hybrid towers (referred to as "hybrid towers") have gradually become the main form of wind power towers due to their significant advantages in rigidity and cost.

[0003] The mainstream form of hybrid towers is currently the segmented tower, which generally adopts the prefabrication process of ordinary reinforced concrete segments. The horizontal joints between the segments are connected by structural adhesive or grout, and the vertical joints are connected by structural adhesive and bolts. However, the structural adhesive is a high-performance epoxy resin. Under long-term continuous load, the polymer material will creep, and under long-term ultraviolet radiation, temperature cycling, and moisture, the polymer material will also age.

[0004] Therefore, how to provide a highly stable segmented tower connection structure has become an urgent technical problem to be solved. Summary of the Invention

[0005] This application provides a spliced ​​tower and a method for manufacturing the same, the technical solution of which is as follows:

[0006] To address the aforementioned technical problems, in a first aspect, this application provides a modular tower, comprising:

[0007] At least two tower modules, each tower module having a first connecting structure on its first side, the first connecting structure including an elastic buckle, and a second connecting structure on its second side; a connecting device, the connecting device including a first part and a second part, the first part including a slot adapted to the elastic buckle, the elastic buckle being snapped into the slot to connect the first part to the first connecting structure, and the second part being detachably connected to the second connecting structure; wherein, two adjacent tower modules are respectively connected to the first connecting structure and the second connecting structure of the two tower modules for locking connection through the connecting device.

[0008] In this embodiment, the first connecting structure further includes a first sleeve, which is disposed inside the tower module and has a first angle with the extending direction of the first side of the tower module. Multiple elastic buckles are provided at intervals along the length direction on the inner wall of the first sleeve.

[0009] In this embodiment, a plurality of annular sleeves are spaced apart axially inside the first sleeve, and an elastic buckle is provided between two adjacent annular sleeves. There is a gap between the inner diameter of the annular sleeves and the inner diameter of the first sleeve. The elastic buckle includes a base plate and a spring element. The base plate is an annular structure, and its outer periphery is fixedly connected to the inner wall of the first sleeve. The outer diameter of the base plate is the same as the inner diameter of the first sleeve, and the inner diameter of the base plate is adapted to the outer diameter of the annular sleeve. The spring element is a polygonal structure with an opening between its two ends. The spring element is connected to the base plate through a first connector. The diameter of the inner circle tangent to the polygonal structure in its natural state is smaller than the outer diameter of the first part.

[0010] In this embodiment, the first connector includes two symmetrically arranged elastic connecting strips, one end of each elastic connecting strip being connected to the end of a polygonal structure, and the other end being connected to the base plate.

[0011] In this embodiment, the corners of the polygonal spring element are chamfered and protruding, and the radius of the chamfered arc is 2-3 times the diameter of the metal wire of the polygonal spring element.

[0012] In this embodiment, the first part includes a first rod body. The outer wall of the first rod body is provided with a plurality of slots at intervals along the length direction. The plurality of slots are correspondingly provided with a plurality of elastic buckles. The diameter of the slots is equal to the diameter of the inner circle that is tangent to the polygonal structure in its natural state.

[0013] In this embodiment, the second connection structure includes a second sleeve, which is disposed inside the tower module and has a second included angle with the extension direction of the second side of the tower module. The inner wall of the second sleeve is provided with an internal thread.

[0014] In this embodiment, the second part includes a second rod body, the outer wall of which is provided with an external thread that matches the internal thread of the second sleeve, and the second rod body is integrally formed with the first rod body.

[0015] In this embodiment, the tower module includes a body, a first embedded plate, and a second embedded plate. The body is made of steel fiber reinforced concrete. A first embedded plate extending along the length of the first side of the body is connected to a first embedded plate, and a second embedded plate extending along the length of the second side of the body is connected to a second embedded plate. The first embedded plate has a boss structure protruding from its surface, and the second embedded plate has a concave structure that matches the boss structure. Alternatively, the third side of the tower module adjacent to the first side has a first connecting structure, and the fourth side of the tower module opposite to the third side has a second connecting structure. The tower module includes a body, a first embedded plate, a second embedded plate, a third embedded plate, and a fourth embedded plate. The body is made of steel fiber reinforced concrete. A first embedded plate extending along the length of the first side of the body is connected to a first embedded plate, and a second embedded plate extending along the length of the second side of the body is connected to a second embedded plate. A second embedded plate is connected to the second side of the main body, extending along the length direction of the second side of the main body; a third embedded plate is connected to the third side of the main body, extending along the length direction of the third side of the main body; a fourth embedded plate is connected to the fourth side of the main body, extending along the length direction of the fourth side of the main body; the first embedded plate has a boss structure protruding from the surface of the first embedded plate; the second embedded plate has a concave structure, which is adapted to the boss structure; the first embedded plate is also used to set a first connecting structure; the second embedded plate is also used to set a second connecting structure; the third embedded plate is used to set a first connecting structure; and the fourth embedded plate is used to set a second connecting structure; wherein, the first side of the tower module is located on the same side as the first side of the main body; the second side of the tower module is located on the same side as the second side of the main body; the third side of the tower module is located on the same side as the third side of the main body; and the fourth side of the tower module is located on the same side as the fourth side of the main body.

[0016] In this embodiment, a waterproof pad is provided on the top surface of the boss structure.

[0017] Secondly, this application also provides a spliced ​​tower and its manufacturing method, used to manufacture the spliced ​​tower as described above. The manufacturing method includes: setting a first embedded plate and a first connecting structure on a first side of the tower mold, setting a second embedded plate and a second connecting structure on a second side of the tower mold, with the middle area of ​​the first and second embedded plates serving as the casting area, wherein the first connecting structure includes an elastic buckle; and applying steel fibers at a ratio of 30-60 kg / m². 3 Steel fiber reinforced concrete is prepared by mixing with concrete raw materials; the steel fiber reinforced concrete is poured into the pouring area to obtain tower modules; multiple tower modules are spliced ​​together by a connecting device to form a spliced ​​tower, wherein two adjacent tower modules are connected by a first connecting structure and a second connecting structure of the two tower modules respectively for locking connection, and the connecting device includes a slot adapted to an elastic buckle.

[0018] Therefore, this application provides a splicing tower and its manufacturing method. Two tower modules are respectively provided with a first connecting structure and a second connecting structure. When the towers need to be spliced, the second part of the connecting device is detachably connected to the second connecting structure, and the first part of the connecting device is detachably connected to the first connecting device, thus achieving a detachable connection between the two tower modules. The first connecting structure and the first part of the connecting device are connected by elastic buckles and slots, which not only serve a connecting function but also a positioning function, reducing the need for positioning devices and saving material, production, and installation costs. The elastic locking of the buckles and slots can absorb and buffer vibration energy, improving the seismic resistance of the spliced ​​tower. Furthermore, during the connection process, there is no need to apply epoxy structural adhesive / mortar or other connecting materials, making the operation simple and requiring less skill from on-site construction personnel, thus improving overall production efficiency, reducing labor costs, and shortening construction time. Additionally, adjacent sleeve modules are connected by a boss structure and a concave structure, and a waterproof pad is provided on the top surface of the boss structure, effectively preventing the entry of moisture, giving the tower a double waterproof defense. The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This application provides a structural schematic diagram of a spliced ​​tower. Figure 2 This application provides a structural schematic diagram of a tower module; Figure 3 An exploded view of a tower module provided in the application; Figure 4 An exploded view of a first connection structure provided in this application; Figure 5 A schematic diagram of a first connection structure provided in this application; Figure 6 A schematic diagram of the connection between the elastic buckle and the first part in a first connection structure provided in this application; Figure 7 A schematic diagram of a connecting device provided in this application; Figure 8 This application provides a schematic diagram of a second connection structure; Figure 9 Please provide a structural diagram of a boss structure; Figure 10 Please provide a flowchart of a method for manufacturing a spliced ​​tower; Figure 11 Please provide a flowchart of another method for manufacturing a spliced ​​tower.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100. Spliced ​​tower; 1. Tower module; 11. First connecting structure; 111. Elastic buckle; 1111. Base plate; 1112. Spring element; 1113. Opening; 114. First connector; 1114. Elastic connecting strip; 1115. Chamfered outward protrusion; 112. First sleeve; 113. Annular sleeve; 12. Second connecting structure; 121. Second sleeve; 122. Internal thread; 13. Body; 14. First embedded plate; 141. Boss structure; 15. Second embedded plate; 151. Concave structure; 16. Waterproof pad; 17. Third embedded plate; 18. Fourth embedded plate; 2. Connecting device; 21. First part; 211. Slot; 212. First rod; 22. Second part; 221. Second rod; 222. External thread. Detailed Implementation

[0023] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0024] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0025] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0027] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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 through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0028] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0030] Currently, with the increase in wind turbine power, turbine hub height, and rotor diameter, concrete-steel hybrid towers (referred to as "hybrid towers") have gradually become the main form of wind power towers due to their significant advantages in rigidity and cost.

[0031] The mainstream form of hybrid towers is currently segmented towers, generally using prefabricated reinforced concrete segments. Horizontal joints between segments are connected using structural adhesive or grout, while vertical joints are connected using structural adhesive and bolts. However, uneven application of the structural adhesive / grout can easily occur, creating gaps between the upper and lower ring segments, making these weak points and leading to quality issues such as leakage, edge chipping, and spalling. The structural adhesive, a high-performance epoxy resin, undergoes creep under long-term continuous loads; furthermore, it ages under prolonged exposure to ultraviolet light, temperature cycling, and moisture. The grout has relatively low tensile and shear strength, making it prone to cracking and rapid propagation on the tension side under bending moment loads. The strength of the structural adhesive / grout is significantly affected by ambient temperature and humidity, thus impacting construction progress. Therefore, the application process requires a high level of skill from on-site construction personnel. This application provides a method for splicing tower sections, where two parts of a connecting device extend into two tower sections to connect adjacent sections. When one part of the connecting device connects to a tower section, it uses an elastic snap-fit ​​connection. This eliminates the need for applying epoxy structural adhesive / grout or other connecting materials between the tower sections, simplifying the operation and reducing the skill requirements for on-site construction personnel. Consequently, it improves overall production efficiency, reduces labor costs, and shortens construction time.

[0032] like Figures 1 to 3 As shown, in a first aspect, this application provides a splicing tower 100, comprising: at least two tower modules 1 and a connecting device 2. Each tower module 1 has a first side and a second side. The first side has a first connecting structure 11, and the second side has a second connecting structure 12. The first part 21 of the connecting device 2 is detachably connected to the first connecting structure 11, thereby detachably connecting the two tower modules 1 through the connecting device 2, the first connecting structure 11, and the second connecting structure 12. Adjacent tower modules are locked together by connecting the first connecting structure and the second connecting structure of the two tower modules respectively through the connecting device. Therefore, when connecting the two tower modules 1, there is no need to apply epoxy structural adhesive / mortar or other connecting materials, simplifying the operation, reducing the skill requirements for on-site construction personnel, improving overall production efficiency, reducing labor costs, and shortening construction time.

[0033] In this embodiment, the tower module is a unit assembled to form a tower. The tower module can also be a tower ring, with multiple tower rings spliced ​​together axially to form a tower. The tower module can be a tower plate. In this case, the first and third sides of the tower module are provided with a first connecting structure, and the second and fourth sides are provided with a second connecting structure. Thus, multiple tower plates are spliced ​​together circumferentially to form a tower ring, and multiple tower rings are spliced ​​together axially to form a tower. The tower module can be a curved surface structure. The curved surface structure can have four sides, three sides, or N sides. The number and position of N are set according to requirements, so that it can be spliced ​​to form a cylindrical tower, a conical tower, or a tower of various geometric forms, including but not limited to circles, chamfered quadrilaterals, and regular polygons.

[0034] In this embodiment, the spliced ​​tower 100 provided in this application is applicable to all wind power tower types of all concrete towers, including but not limited to pure concrete towers and steel-concrete hybrid towers.

[0035] In this embodiment, the position and number of the first connecting structure 11 and the second connecting structure 12 in each tower module 1 can also be flexibly set according to requirements.

[0036] In this embodiment, the tower module 1 can be a tower ring, and the first side and the second side of the tower module 1 can be arranged opposite to each other. The first side and the second side of the tower module 1 can be the axial direction of the tower module 1, so that multiple towers can be connected sequentially along the axial direction through the first connecting structure 11 and the second connecting structure 12, thereby completing the installation of the entire spliced ​​tower 100.

[0037] In this embodiment, the first connecting structure 11, the second connecting structure 12, and the connecting device 2 are all made of steel.

[0038] like Figures 4 to 6 As shown, in this embodiment, the first connecting structure 11 includes an elastic buckle 111, and the first part 21 includes a slot 211 adapted to the elastic buckle 111. When the first part 21 is connected to the first connecting structure 11, the elastic buckle 111 is snapped into the slot 211, thereby achieving elastic locking, which can absorb and buffer vibration energy and improve the seismic resistance of the spliced ​​tower 100.

[0039] Therefore, the splicing tower 100 provided in this application has a first connecting structure 11 and a second connecting structure 12 respectively provided in two tower modules 1. When the towers need to be spliced, the second part 22 of the connecting device 2 is detachably connected to the second connecting structure 12, and the first part 21 of the connecting device 2 is detachably connected to the first connecting device 2, thereby realizing the detachable connection between the two tower modules 1. The first connecting structure 11 and the first part 21 of the connecting device 2 are connected by elastic buckles 111 and slots 211, which not only serve as a connection but also as a positioning function, reducing the need for positioning devices, improving tensile strength, and saving material, production, and installation costs. The elastic locking of the elastic buckles 111 and slots 211 can absorb and buffer vibration energy, improving the seismic resistance of the splicing tower 100. Moreover, during the connection process, there is no need to apply epoxy structural adhesive / mortar or other connecting materials, making the operation simple, requiring less skill from on-site construction personnel, improving overall production efficiency, reducing labor costs, and shortening construction time. It can also reduce the impact of ambient temperature and humidity, avoiding disruptions to construction progress; thus, it can improve the construction progress and quality of the tower, and reduce tower production input and subsequent maintenance costs. Furthermore, the arrangement of the first connection structure, the second connection structure, and the connection device can be flexible and varied. The location and quantity of the snap-fit ​​connectors can be flexibly arranged according to the actual needs of the project, and the dimensions of the snap-fit ​​connectors can also be flexibly designed to facilitate the splicing of towers of different shapes.

[0040] like Figures 4 to 6 As shown in the embodiment of this application, the first connecting structure 11 further includes a first sleeve 112. The first sleeve 112 is disposed inside the tower module 1 and has a first included angle with the extension direction of the first side of the tower module 1. Multiple elastic buckles 111 are provided at intervals along the length direction on the inner wall of the first sleeve 112.

[0041] In this embodiment, the first connecting structure 11 includes a first sleeve 112 and a plurality of elastic buckles 111. The first sleeve 112 is a cylindrical structure, embedded inside the tower module 1, and has a first included angle α with the extending direction of the first side of the tower module 1. The first included angle α can be 90 degrees. Figure 2 As shown, the first part of the connecting device extends into the first tower, so the angle between the second part of the connecting device exposed outside and the first side of the tower module 1 is the first angle.

[0042] In this embodiment, when connecting the first part 21 of the connecting device 2 to the first connecting structure 11, the first part 21 can be inserted into the first sleeve 112. The inner wall of the first sleeve 112 is provided with a plurality of elastic buckles 111 at intervals along the length direction. Correspondingly, the first part 21 is provided with a plurality of slots 211 at intervals along the length direction. After the first part 21 is inserted into the first connecting structure 11, the plurality of elastic buckles 111 can be clamped with the plurality of slots 211 respectively, which improves the tensile strength and shear strength. Under the action of bending moment load, cracks are not easy to appear on the tension side, so that the first part 21 and the first connecting structure 11 can be better fixedly connected.

[0043] like Figures 4 to 6 As shown in this embodiment, a plurality of annular sleeves 113 are spaced apart along the axial direction inside the first sleeve 112, and an elastic buckle 111 is provided between two adjacent annular sleeves 113. There is a gap between the annular sleeves 113 and the inner diameter of the first sleeve 112. The elastic buckle 111 includes a base plate 1111 and a spring element 1112. The base plate 1111 has an annular structure, and the surface of the base plate 1111 is perpendicular to the axial direction of the first sleeve 112. The outer periphery of the base plate 1111 is perpendicular to the inner diameter of the first sleeve 112. The inner wall of the cylinder 112 is fixedly connected, and the outer diameter of the bottom plate 1111 is the same as the inner diameter of the first sleeve 112. The inner diameter of the bottom plate 1111 is adapted to the outer diameter of the annular sleeve 113. The spring element 1112 is a polygonal structure with an opening 1113 between the two ends of the polygonal structure. The spring element 1112 is connected to the bottom plate 1111 through the first connector 114. The diameter of the inner circle tangent to the polygonal structure in its natural state is smaller than the outer diameter of the first part 21.

[0044] like Figure 5 As shown, in this embodiment, a plurality of annular sleeves 113 are spaced axially inside the first sleeve 112. The spacing between two adjacent annular sleeves 113 is adapted to the thickness of the elastic buckle 111, so that an elastic buckle 111 is provided between two adjacent annular sleeves 113. There is a gap between the annular sleeves 113 and the inner diameter of the first sleeve 112, thereby forming a spaced annular structure inside the first sleeve 112, which can support the elastic buckle 112 and prevent the elastic buckle 112 from undergoing large deformation in the axial direction, so that the first part of the connecting device can be better engaged by the elastic buckle 112. In this embodiment, the outer diameter of the base plate 1111 is the same as the inner diameter of the first sleeve, and the inner diameter of the base plate is adapted to the outer diameter of the annular sleeves 113. Furthermore, the inner diameter of the base plate 1111 is approximately the same as that of the first part 21. The outer diameter of the base plate 1111 is about 0.2-0.4 mm larger than that of the first part 21, which can avoid manufacturing errors that prevent the first part 21 from smoothly entering the pre-embedded sleeve 112.

[0045] like Figure 7 As shown in the embodiment of this application, the first part 21 includes a first rod 212, which is a cylindrical rod. The outer wall of the first rod 212 is provided with a plurality of slots 211 at intervals along the length direction. The plurality of slots 211 are correspondingly provided with a plurality of elastic buckles 111. The diameter of the slot 211 is equal to the diameter of the inner circle tangent to the polygonal structure in its natural state. The depth of the slot 211 can be between 1cm and 1.5cm. The specific dimensions and the spacing between two adjacent slots 211 should match the dimensions of the spring element 1112.

[0046] In this embodiment, the spring element 1112 has a polygonal structure, which can be a rhombus, hexagon, or other polygonal structure. An opening 1113 is located between the two ends that enclose the rhombus structure. This allows the spring element 1112 to be compressed after the first part 21 is inserted, and to return to its natural state after passing through the slot 211 of the first part 21. This allows the spring element 1112 to fall into the slot 211 and engage with it. This snap-fit ​​connection between the spring element 1112 and the slot 211 is simple, easy to connect, and provides a more secure connection. The elastic material of the spring element 1112 absorbs deformation under continuous load, thus improving tensile and shear strength. This prevents cracking in the reinforced concrete segments and avoids the aging caused by long-term exposure to ultraviolet radiation, temperature cycles, and moisture.

[0047] In this embodiment, when the first part 21 extends into the first sleeve 112, under the constraint of the inner ring of the base plate 1111 and the annular sleeve 113, the first part 21 extends into the first sleeve 112 axially. A spring element 1112 is connected to the base plate 1111. Since the diameter of the inner circle tangent to the spring element 1112 in its natural state is smaller than the outer diameter of the first part 21, the diameter of the inner circle tangent to the spring element 1112 in its natural state is equal to the diameter of the groove 211. As the first part 21 extends into the outer diameter of the position, the spring element 1112 is compressed, and when it passes through the slot 211 on the first part 21, the spring element 1112 changes from the compressed state to the open state, thereby realizing the engagement of the spring element 1112 with the slot 211. When the first part 21 is fully inserted into the first sleeve 112, the multiple spring elements 1112 respectively engage with the multiple slots 211, thereby realizing the fixed connection between the first part 21 and the first connecting structure 11.

[0048] like Figure 4As shown in the embodiment of this application, the first connector 114 includes two symmetrically arranged elastic connecting strips 1114, one end of each elastic connecting strip 1114 is connected to the end of a polygonal structure, and the other end is connected to the base plate 1111.

[0049] In this embodiment, the two ends of the polygonal spring element 1112 at the opening 1113 can be bent outward to form an elastic connecting strip 1114. The length of the elastic connecting strip 1114 is 0.7-0.8 times the side length of the polygonal structure. The other end of the elastic connecting strip 1114 is welded to the base plate 1111. The other parts of the spring element 1112 remain free, so that the spring element 1112 can extend into the slot and engage with it. The elastic connecting strip 1114 and the polygonal spring element 1112 are integrally formed, thereby increasing the connection strength between the first connecting member 114 and the spring element 1112, and making it easier to manufacture and apply.

[0050] In this embodiment, the corners of the polygonal structure are chamfered and protruded 1115. The radius of the protruding arc can be 2-3 times the diameter of the metal wire of the spring element 1112 that is bent to form the polygonal structure. This makes the spring element of the polygonal structure more redundant when it deforms, avoids breakage, and the chamfered and protruding 1115 consumes more energy and is easier to consume energy, thereby avoiding damage to the tower and extending the tower life.

[0051] like Figure 8 As shown, in this embodiment of the application, the second connecting structure 12 includes a second sleeve 121, which is disposed inside the tower module 1 and has a second included angle b with the extending direction of the second side of the tower module 1. An internal thread 122 is provided on the inner wall of the second sleeve 121. Figure 2 As shown, the second part of the connecting device extends into the second tower, so the angle between the first part of the connecting device exposed outside and the second side of the tower module 1 is the second angle.

[0052] In this embodiment, the second part 22 includes a second rod 221, which is a cylindrical rod. The diameter of the second rod 221 is the same as that of the first rod 212, and the length of the second rod 221 is also the same as that of the first rod 212. The outer wall of the second rod 221 is provided with an external thread 222 that is adapted to the internal thread 122 of the second sleeve 121. The second rod 221 and the first rod 212 are integrally formed.

[0053] In this embodiment, the second connecting structure 12 has a second sleeve 121, which is embedded inside the tower module 1 and has a second included angle b with the extending direction of the second side of the tower module 1. The second included angle b can be 90 degrees.

[0054] In this embodiment, the second sleeve 121 has an accommodating space, so that the second part 22 of the connecting device 2 can extend into the second sleeve 121. The external thread 222 on the second rod 221 of the second part 22 is threadedly connected to the internal thread 122 of the second sleeve 121, so as to detachably connect the second part 22 to the second connecting structure 12.

[0055] In this embodiment, the first rod 212 and the second rod 221 are integrally formed, so the connection structure can be a single, integrated structure, resulting in higher strength and easier manufacturing. Therefore, when connecting the two tower modules 1 via the connecting device 2, the second part 22 of the connecting device 2 can first be inserted into the second connecting structure 12 for threaded connection, and then the first part 21 of the connecting device 2 can be inserted into the first connecting structure 11 so that the elastic buckle 111 engages with the slot 211. This allows for a detachable connection of the two tower modules 1. The different connection methods between the connecting device 2 and the two tower modules 1 improve the connection effect and increase the connection strength.

[0056] like Figure 3 and Figure 9 As shown in this embodiment, the tower module 1 includes a body 13, a first embedded plate 14, and a second embedded plate 15. The body is made of steel fiber reinforced concrete. A first embedded plate 14 extending along the length of the first side of the body is connected to a first side of the body 13, and a second embedded plate 15 extending along the length of the second side of the body is connected to a second side of the body 13. The first embedded plate 14 has a boss structure 141 protruding from its surface, and the second embedded plate 15 has a concave structure 151, which is adapted to the boss structure 141; or

[0057] The tower module has a first connecting structure on its third side adjacent to the first side, and a second connecting structure on its fourth side opposite to the third side. The tower module includes a body, a first embedded plate, a second embedded plate, a third embedded plate 17, and a fourth embedded plate 18. The body is made of steel fiber reinforced concrete. The first side of the body is connected to the first embedded plate extending along the length of the first side of the body, the second side of the body is connected to the second embedded plate extending along the length of the second side of the body, the third side of the body is connected to the third embedded plate 17 extending along the length of the third side of the body, and the fourth side of the body is connected to the fourth embedded plate 18 extending along the length of the fourth side of the body. The first embedded plate has a boss structure protruding from the surface of the first embedded plate, and the second embedded plate has a concave structure that matches the boss structure. The first embedded plate is also used to set the first connecting structure, the second embedded plate is also used to set the second connecting structure, the third embedded plate 17 is used to set the first connecting structure, and the fourth embedded plate 18 is used to set the second connecting structure.

[0058] Specifically, the first side of the tower module is located on the same side as the first side of the main body; the second side of the tower module is located on the same side as the second side of the main body; the third side of the tower module is located on the same side as the third side of the main body; and the fourth side of the tower module is located on the same side as the fourth side of the main body.

[0059] In one embodiment of this application, a first embedded plate and a second embedded plate are respectively provided on the first side and the second side of the main body. A first connecting structure and a second connecting structure are respectively provided on the first side and the second side of the tower module. A boss structure 141 is provided on the first embedded plate 14, and a concave structure 151 is provided on the second embedded plate 15. When the two tower modules 1 are installed, the first connecting structure 11 on the first side of one tower module and the second connecting structure 12 on the second side of another tower module can be connected by the connecting device 2. At the same time, the boss structure 141 on the first side of one tower module 1 can be inserted into the concave structure 151 on the second side of another tower module 1 to further connect the two tower modules 1. The cooperation between the boss structure 141 and the concave structure 151 can also effectively block the entry of water vapor, becoming the first line of defense for waterproofing the tower.

[0060] In another embodiment of this application, the tower module can be a tower section. In this case, a first embedded plate, a second embedded plate, a third embedded plate, and a fourth embedded plate are respectively provided on the first, second, third, and fourth sides of the main body. A first connecting structure is provided on the first and third sides of the tower module, and a second connecting structure is provided on the second and fourth sides of the tower module. A boss structure 141 is provided on the first embedded plate 14, and a concave structure 151 is provided on the second embedded plate 15. During the assembly of the tower, the connecting device 2 can be used to connect tower modules located in one tower section along the circumferential direction. The first connecting structure 11 on the third side is connected to the second connecting structure 12 on the fourth side of another adjacent tower module, thereby completing the splicing of multiple tower modules in the circumferential direction to form a tower ring. Then, the first connecting structure 11 on the first side of the tower module and the second connecting structure 12 on the second side of the tower module are connected by the connecting device 2. At the same time, the boss structure 141 on the first side of the tower module 1 extends into the concave structure 151 on the second side of another tower module 1, thereby completing the splicing of multiple tower rings in the axial direction, and thus completing the splicing of the entire tower. During the connection process of two adjacent tower rings, the cooperative connection of the boss structure 141 and the concave structure 151 can effectively prevent the entry of water vapor, becoming the first line of defense for waterproofing the tower.

[0061] In this embodiment, the connection method can be flexibly selected according to the needs of tool engineering; it can be an axial connection, a circumferential connection, or a combination of both. Furthermore, when splicing tower sections, staggered connections can be chosen to avoid axial joint connections, thereby improving connection strength.

[0062] In this embodiment, the joint between the first embedded plate 14 and the second embedded plate 15 can be rounded, which can effectively reduce stress concentration and facilitate assembly during tower hoisting. The first embedded plate 14 and the second embedded plate 15 are connected to the body 13 by casting. The first embedded plate 14, the second embedded plate 15, the third embedded plate 17, and the fourth embedded plate 18 are all steel plates.

[0063] In this embodiment, a boss structure 141 is provided on the first embedded plate 14. The first embedded plate 14 can have one boss structure 141 in the width direction. The length of the boss structure 141 can extend along the length direction of the first embedded plate 14. The boss structure 141 can be centrally located in the width direction of the first embedded plate 14. Multiple boss structures 141 can also be provided at intervals. There can be two or three boss structures 141. The position and number of boss structures 141 can be set as needed.

[0064] In this implementation, a concave structure 151 is provided on the second embedded plate 15. The second embedded plate 15 can have one concave structure 151 in the width direction, or it can have multiple concave structures 151 spaced apart. There can be two or three concave structures 151. The size and number of concave structures 151 are adapted to the size and number of boss structures 141. So when the two tower modules 1 are installed, while the first connecting structure 11 and the second connecting structure 12 are connected by the connecting device 2, the boss structure 141 of one tower module 1 can be inserted into the concave structure 151 of the other tower module 1 to further connect the two tower modules 1. The cooperation between the boss structure 141 and the concave structure 151 can also effectively block the entry of water vapor, becoming the first line of defense for the tower's waterproofing.

[0065] In this implementation, the height of the boss structure 141 can be 5-8cm, the width can be 4cm, and the steel plate thickness can be 1cm; the depth of the concave structure 151 can be 5-8cm, and the width can be about 4cm. The width of each side of the concave structure 151 can be 1mm wider than the width of the boss structure 141, so as to facilitate the docking of the two tower modules 1. The steel plate thickness can be 1cm.

[0066] In this embodiment, a waterproof pad 16 is provided on the top surface of the boss structure 141. In this embodiment, the waterproof pad 16 can be a waterproof rubber pad, which can serve as a second line of defense, working together with the first line of defense to effectively solve the leakage problem of existing wind power hybrid towers.

[0067] In this embodiment, the body 13 is made of steel fiber reinforced concrete. The tower module made of steel fiber reinforced concrete can continue to bear the load after the concrete cracks, through the "bridging effect" of the fibers crossing the cracks. This disperses concentrated cracks into numerous micro-cracks, allowing the material to absorb a large amount of energy before failure, exhibiting extremely high toughness and ductility. Its flexural and tensile strengths are significantly improved. Simultaneously, the steel fibers can effectively suppress plastic shrinkage and shrinkage cracks caused by drying shrinkage and temperature changes during the hardening process of concrete.

[0068] Secondly, such as Figure 10 As shown, this application also provides a method for manufacturing a spliced ​​tower, used to manufacture the spliced ​​tower as described above, characterized in that the manufacturing method includes:

[0069] S101, the first embedded plate and the first connecting structure are set on the first side of the tower mold, the second embedded plate and the second connecting structure are set on the second side of the tower mold, and the middle area of ​​the first embedded plate and the second embedded plate is used as the casting area, wherein the first connecting structure includes an elastic buckle.

[0070] When the tower mold is a ring-shaped mold and the tower module is a tower ring, the first embedded plate and the second embedded plate are respectively set on the first and second sides of the tower mold. Simultaneously, the first connecting structure and the second connecting structure are also set on the first and second sides of the tower mold. The angle between the first connecting structure and the first side of the tower mold is the first angle, which can be 90°; the angle between the second connecting structure and the second side of the tower mold is the second angle, which can also be 90°. This eliminates the need for pre-tying of the reinforcing cage, simplifying the process and reducing time consumption. The first connecting structure includes an elastic buckle.

[0071] S102, steel fibers are applied at a rate of 30-60 kg / m 3 It is mixed with concrete raw materials to produce steel fiber concrete;

[0072] The amount of steel fiber in each cubic meter of concrete raw materials can range from 30 to 60 kg. The ratio of concrete raw materials can be cement, water, fly ash, and aggregate = 0.8-1.2:0.3-0.45:0.25-0.4:4-5.5. Preferably, the ratio of cement, water, fly ash, and aggregate = 1:0.37:0.33:4.47. Cement, water, fly ash, and aggregate can be added according to the specifications in a ratio of 1:0.37:0.33:4.47. Then, steel fiber is added according to the volume of the concrete raw materials after addition. After addition, the mixture is stirred for 5-6 minutes. The amount of steel fiber in each cubic meter of concrete raw materials can range from 40 kg to 50 kg or 55 kg.

[0073] S103, steel fiber reinforced concrete is poured into the pouring area to obtain the tower module;

[0074] The steel fiber reinforced concrete tower is placed in a mold at room temperature for one day to allow the steel fiber reinforced concrete to meet the strength required for lifting. It is then hoisted to the curing area and cured by watering for 14-28 days to form the tower module.

[0075] S104, multiple tower modules are spliced ​​together to form a spliced ​​tower through a connecting device. Two adjacent tower modules are connected to the first connecting structure and the second connecting structure of the two tower modules respectively through the connecting device for locking connection. The connecting device includes a slot adapted to the elastic buckle.

[0076] The first connecting structure includes an elastic buckle, and the connecting device includes a slot adapted to the elastic buckle. When the connecting device is connected to the first connecting structure, the elastic buckle engages with the slot, thereby achieving elastic locking. This absorbs and buffers vibration energy, improving the seismic resistance of the spliced ​​tower. Thus, the spliced ​​tower manufacturing method provided in this application, through steel fiber at a density of 30-60 kg / m², [achieves a specific structural improvement]. 3 Steel fiber reinforced concrete (SFT) is mixed with concrete raw materials to create steel fiber reinforced concrete (SFT) towers. After concrete cracks, the fibers bridging the cracks can continue to bear the load, dispersing concentrated cracks into numerous micro-cracks. This allows the material to absorb a large amount of energy before failure, exhibiting extremely high toughness and ductility. Its flexural and tensile strengths are significantly improved. Simultaneously, the steel fibers effectively inhibit plastic shrinkage and shrinkage cracks caused by drying shrinkage and temperature changes during the hardening process of concrete. Furthermore, the tower modules produced by the splicing tower preparation method, when the tower module is a tower ring, have a first connecting structure and a second connecting structure respectively set inside the tower module. When the towers need to be spliced, the first connecting structure is connected to the connecting device through elastic buckles and slots, which not only serves as a connection but also as a positioning function, reducing the need for positioning devices and saving costs and installation costs. The elastic locking of the elastic buckles and slots can absorb and buffer vibration energy, improving the seismic resistance of the spliced ​​tower. Moreover, during the connection process, there is no need to apply epoxy structural adhesive / mortar or other connecting materials, making the operation simple and requiring less skill from on-site construction personnel, which can improve overall production efficiency, reduce labor costs, and shorten construction time.

[0077] like Figure 11 As shown, this application also provides another method for manufacturing spliced ​​tower modules, used to manufacture tower modules of the aforementioned spliced ​​tower modules, characterized in that the manufacturing method includes:

[0078] S101', the first embedded plate and the first connecting structure are set on the first side of the tower mold, the second embedded plate and the second connecting structure are set on the second side of the tower mold, the third embedded plate and the first connecting structure are set on the third side of the tower mold, and the fourth embedded plate and the second connecting structure are set on the fourth side of the tower mold. The middle area of ​​the first embedded plate, the second embedded plate, the third embedded plate and the fourth embedded plate is used as the casting area. The first connecting structure includes an elastic buckle.

[0079] The tower mold has a sheet-like structure. When the tower module is a tower sheet, the first, second, third, and fourth embedded plates are respectively installed on the first, second, third, and fourth sides of the tower mold. Simultaneously, the first connecting structure is installed on the first and third sides of the tower mold, and the second connecting structure is installed on the second and fourth sides of the tower mold. The angle between the first connecting structure and the first or third side of the tower mold is the first included angle, which can be 90°. The angle between the second connecting structure and the second or fourth side of the tower mold is the second included angle, which can also be 90°, or other angles suitable for production and application. There is no need to pre-tie the reinforcing cage before fabrication, thus simplifying the process and reducing time consumption.

[0080] S102', steel fibers are applied at a rate of 30-60 kg / m 3 It is mixed with concrete raw materials to produce steel fiber concrete;

[0081] The amount of steel fiber in each cubic meter of concrete raw materials can range from 30 to 60 kg. The ratio of concrete raw materials can be cement, water, fly ash, and aggregate = 0.8-1.2:0.3-0.45:0.25-0.4:4-5.5. Preferably, the ratio of cement, water, fly ash, and aggregate = 1:0.37:0.33:4.47. Cement, water, fly ash, and aggregate can be added according to the specifications in a ratio of 1:0.37:0.33:4.47. Then, steel fiber is added according to the volume of the concrete raw materials after addition. After addition, the mixture is stirred for 5-6 minutes. The amount of steel fiber in each cubic meter of concrete raw materials can range from 40 kg to 50 kg or 55 kg.

[0082] S103', steel fiber reinforced concrete is poured into the pouring area to obtain the tower module;

[0083] The steel fiber reinforced concrete tower is placed in a mold at room temperature for one day to allow the steel fiber reinforced concrete to meet the strength required for lifting. It is then hoisted to the curing area and cured by watering for 14-28 days to form the tower module.

[0084] S104', multiple tower modules are spliced ​​together to form a spliced ​​tower through a connecting device. Two adjacent tower modules are connected to the first connecting structure and the second connecting structure of the two tower modules respectively through the connecting device for locking connection. The connecting device includes a slot adapted to the elastic buckle.

[0085] Thus, through another method of manufacturing spliced ​​towers provided in this application, steel fibers are applied at a density of 30-60 kg / m³. 3 Steel fiber reinforced concrete (SFR) is mixed with concrete raw materials to produce steel fiber reinforced concrete (SFR) towers. After concrete cracking, the fibers bridging the cracks continue to bear the load, dispersing concentrated cracks into numerous micro-cracks. This allows the material to absorb a large amount of energy before failure, exhibiting extremely high toughness and ductility. Its flexural and tensile strengths are significantly improved. Simultaneously, the steel fibers effectively inhibit plastic shrinkage and shrinkage cracks caused by drying shrinkage and temperature changes during concrete hardening. Furthermore, the tower modules fabricated using a splicing method, when the tower module is a tower ring, have first connecting structures on the first and second sides, and second connecting structures on the second and fourth sides. When splicing the towers, adjacent tower modules are firstly connected circumferentially using a connecting device to connect the first connecting structure on the third side and the second connecting structure on the fourth side to form a tower ring. Then, the first and second connecting structures on the first side of the tower modules are connected axially using a connecting device to splice and form the tower. The first connecting structure and the connecting device are connected by elastic buckles and slots, which not only serve as a connection but also as a positioning function, reducing the need for positioning devices and saving material, production, and installation costs. The elastic locking of the buckles and slots can absorb and buffer vibration energy, improving the seismic resistance of the spliced ​​tower. Furthermore, during the connection process, there is no need to apply epoxy structural adhesive / mortar or other connecting materials, making the operation simple and requiring less skill from on-site construction personnel. This improves overall production efficiency, reduces labor costs, and shortens construction time.

[0086] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0087] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A type of spliced ​​tower, characterized in that, include: At least two tower modules, each tower module having a first connection structure on a first side, the first connection structure including an elastic buckle, and a second connection structure on a second side; A connecting device comprising a first part and a second part, the first part comprising a slot adapted to the elastic buckle, the elastic buckle being snapped into the slot to connect the first part to the first connecting structure, and the second part being detachably connected to the second connecting structure; Wherein, two adjacent tower modules are connected to the first connection structure and the second connection structure of the two tower modules respectively through the connection device for locking connection.

2. The spliced ​​tower according to claim 1, characterized in that, The first connection structure further includes a first sleeve, which is disposed inside the tower module and has a first angle with the extension direction of the first side of the tower module. A plurality of elastic buckles are provided at intervals along the length direction on the inner wall of the first sleeve.

3. The spliced ​​tower according to claim 2, characterized in that, The first sleeve has a plurality of annular sleeves spaced apart along the axial direction, and the elastic buckle is provided between two adjacent annular sleeves. There is a gap between the inner diameter of the annular sleeve and the inner diameter of the first sleeve. The elastic buckle includes a base plate and a spring element. The base plate has an annular structure. The outer periphery of the base plate is fixedly connected to the inner wall of the first sleeve. The outer diameter of the base plate is the same as the inner diameter of the first sleeve. The inner diameter of the base plate is adapted to the outer diameter of the annular sleeve. The spring element is a polygonal structure with an opening between its two ends, and the spring element is connected to the base plate via a first connector. The diameter of the inner circle tangent to the polygonal structure in its natural state is smaller than the outer diameter of the first part.

4. The spliced ​​tower according to claim 3, characterized in that, The first connector includes two symmetrically arranged elastic connecting strips, one end of each elastic connecting strip is connected to the end of one of the polygonal structures, and the other end is connected to the base plate.

5. The spliced ​​tower according to claim 3, characterized in that, The corners of the polygonal spring element have chamfered outward convexity, and the radius of the outward convex arc is 2-3 times the diameter of the metal wire of the polygonal spring element.

6. The spliced ​​tower according to claim 3, characterized in that, The first part includes a first rod body, and the outer wall of the first rod body is provided with a plurality of slots spaced apart along the length direction. The plurality of slots are correspondingly provided with a plurality of elastic buckles. The diameter of the slot is equal to the diameter of the inner circle that is tangent to the polygonal structure in its natural state.

7. The spliced ​​tower according to claim 6, characterized in that, The second connection structure includes a second sleeve, which is disposed inside the tower module and has a second included angle with the extension direction of the second side of the tower module. The inner wall of the second sleeve is provided with internal threads.

8. The spliced ​​tower according to claim 7, characterized in that, The second part includes a second rod body, the outer wall of which is provided with an external thread that matches the internal thread of the second sleeve, and the second rod body is integrally formed with the first rod body.

9. The spliced ​​tower according to claim 1, characterized in that, The tower module includes a body, a first embedded plate, and a second embedded plate. The body is made of steel fiber reinforced concrete. The first embedded plate is connected to a first side of the body and extends along the length of the first side of the body. The second embedded plate is connected to a second embedded plate and extends along the length of the second side of the body. The first embedded plate has a boss structure protruding from the surface of the first embedded plate. The second embedded plate has a concave structure that is adapted to the boss structure. or The tower module has a first connection structure on its third side adjacent to the first side, and a second connection structure on its fourth side opposite to the third side. The tower module includes a body, a first embedded plate, a second embedded plate, a third embedded plate, and a fourth embedded plate. The body is made of steel fiber reinforced concrete. The first embedded plate extends along the length of the first side of the body to its first side. The second embedded plate extends along the length of the second side of the body to its second side. The third embedded plate extends along the length of the third side of the body to its third side. The fourth embedded plate extends along the length of the fourth side of the body to its fourth side. The first embedded plate has a boss structure protruding from its surface. The second embedded plate has a concave structure that matches the boss structure. The first embedded plate is also used to set the first connection structure, the second embedded plate is also used to set the second connection structure, the third embedded plate is used to set the first connection structure, and the fourth embedded plate is used to set the second connection structure. Wherein, the first side of the tower module is located on the same side as the first side of the body; the second side of the tower module is located on the same side as the second side of the body; the third side of the tower module is located on the same side as the third side of the body; and the fourth side of the tower module is located on the same side as the fourth side of the body.

10. A method for manufacturing a spliced ​​tower, used to manufacture a spliced ​​tower as described in any one of claims 1 to 9, characterized in that, The production method includes: The first embedded plate and the first connecting structure are set on the first side of the tower mold, and the second embedded plate and the second connecting structure are set on the second side of the tower mold. The middle area of ​​the first embedded plate and the second embedded plate is used as the casting area. The first connecting structure includes an elastic buckle. The steel fiber is mixed with 30-60 kg / m 3 The steel fiber is mixed with 30-60 kg / m concrete raw materials to produce steel fiber reinforced concrete. The steel fiber reinforced concrete is poured into the pouring area to obtain the tower module; Multiple tower modules are spliced ​​together by a connecting device to form a spliced ​​tower. Two adjacent tower modules are connected by the first connecting structure and the second connecting structure of the two tower modules respectively through the connecting device for locking connection. The connecting device includes a slot adapted to the elastic buckle.

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