Tower drum structure

Abstract

The utility model relates to the technical field of wind power equipment, and provides a tower tube structure which is designed into a plurality of sectional tower tube sections, so that the tower tube sections can be separated in the transportation process, the volume of the tower tube structure is shortened, the tower tube structure is convenient to transport, the limitation of the installation position is reduced, and the transportation efficiency is improved. Meanwhile, during installation and construction, all the tower barrel sections can be sequentially and detachably spliced in the respective axis direction, and compared with a traditional structure, the installation period is shortened, and the installation cost is reduced. In addition, the tower barrel section is of a sandwich structure formed by the inner barrel, the outer barrel and the reinforcing assembly arranged between the inner barrel and the outer barrel, external environmental force is resisted through the outer barrel, internal loads are borne through the inner barrel, stress on the inner barrel and the outer barrel is dispersed through deformation of the reinforcing assembly, and stress concentration is avoided. In this way, all layers of structures in the tower barrel section are stressed cooperatively, the stability of the tower barrel structure in the complex stress state is improved, and structural safety is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power equipment, and in particular relates to a tower structure. Background Art

[0002] In the field of wind power generation, the tower is a crucial supporting structure for wind turbines. Traditional concrete towers face challenges such as time-consuming pouring and curing, which results in long construction periods, and the need for moisture and insulation during curing, which increases construction complexity and costs. Traditional steel towers also face challenges as wind turbine power levels increase, leading to increased transportation difficulties and limited installation locations. Utility Model Content

[0003] Based on the above background, the purpose of the present invention is to provide a tower structure that simplifies construction, improves transportation efficiency, and reduces restrictions on installation locations; at the same time, it improves the structural bearing capacity and ensures structural safety.

[0004] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0005] A tower structure comprises a plurality of tower sections, each of which is detachably connected and spliced ​​in sequence along its own axial direction, wherein each tower section comprises an outer tube, an inner tube, a reinforcement assembly, a first mounting end plate and a second mounting end plate, the outer tube is sleeved on the outside of the inner tube, the reinforcement assembly is connected between the outer tube and the inner tube, the first mounting end plate is connected to one end of the outer tube and the inner tube, and the second mounting end plate is connected to the other end of the outer tube and the inner tube; between two adjacent tower sections, the first mounting end plate of one tower section is connected to the second mounting end plate of the other tower section.

[0006] Furthermore, the reinforcement assembly includes a first reinforcement plate and a second reinforcement plate, the first reinforcement plate and the second reinforcement plate are both located between the outer tube and the inner tube, and both extend along the axial direction of the tower section, and the first reinforcement plate and the second reinforcement plate are both connected between the outer tube and the inner tube.

[0007] Furthermore, one side of the first reinforcing plate and one side of the second reinforcing plate are connected together and fixed to the outer tube, the other side of the first reinforcing plate and the other side of the second reinforcing plate are connected to the inner tube at intervals, and the first reinforcing plate, the second reinforcing plate and the inner tube enclose a reinforcement channel.

[0008] Furthermore, in two adjacent tower sections, a positioning piece is protruding from the first mounting end plate, and a positioning hole communicating with the reinforcement channel is provided on the second mounting end plate, and the positioning piece passes through the positioning hole and extends into the reinforcement channel.

[0009] Furthermore, a pressure spring is provided on one side surface of the first reinforcing plate facing the reinforcement channel, the pressure spring is connected to the first reinforcing plate at one end close to the second mounting end plate, and there is a deformation gap between the end away from the second mounting end plate and the first reinforcing plate, and the pressure spring is used to drive the positioning member to abut against the side surface of the second reinforcing plate facing the reinforcement channel.

[0010] Furthermore, there are multiple positioning members and positioning holes, which are arranged one to one, and all the positioning members and positioning holes are distributed at intervals around the axis of the tower section.

[0011] Furthermore, each of the tower sections includes a first flange and a second flange, and the first flange and the second flange are both arranged on a side of the inner tube facing away from the outer tube, the first flange is connected to the first mounting end plate, and the second flange is connected to the second mounting end plate. In two adjacent tower sections, the first flange of one tower section is connected to the second flange of the other tower section.

[0012] Furthermore, the tower structure also includes a sealing gasket, which is arranged between the first flange and the second flange.

[0013] Furthermore, in the lowest tower section, the outer tube is provided with a doorway penetrating the inner tube, and a side of the inner tube facing away from the outer tube is provided with reinforcing ribs, which extend along the circumference of the doorway.

[0014] The utility model has the following beneficial effects:

[0015] (1) The tower structure is designed to be divided into multiple segmented tower sections. In this way, the tower sections can be separated during transportation, shortening the volume of the tower structure, making the tower structure convenient to transport, reducing the restrictions on the installation location, and improving transportation efficiency. At the same time, during installation and construction, the tower sections can be detachably spliced ​​in sequence along their respective axial directions. Compared with traditional structures, this is conducive to shortening the installation period and reducing installation costs. In addition, the tower section is composed of an inner tube, an outer tube, and a reinforcement component arranged between the inner tube and the outer tube to form a sandwich structure. The outer tube resists external environmental forces, the inner tube bears internal loads, and the deformation of the reinforcement component disperses the stress on the inner tube and the outer tube to avoid stress concentration. In this way, the various layers of the tower section are subjected to force in a coordinated manner, improving the stability of the tower structure under complex stress conditions and ensuring structural safety.

[0016] (2) The reinforcement components are designed as first and second reinforcement plates, which ensure a stable connection between the inner and outer cylinders. This helps disperse stress on each structure, reduces stress concentration, and improves structural safety. This also simplifies the structural design of the reinforcement components and improves construction efficiency.

[0017] (3) A positioning piece is provided on the first mounting end plate, and a positioning hole corresponding to the reinforcement channel is provided on the second mounting end plate. During installation, the positioning piece can be inserted into the positioning hole to achieve preliminary positioning, so as to facilitate rapid alignment of two adjacent tower sections and improve installation efficiency. At the same time, the positioning piece passes through the positioning hole and extends into the reinforcement channel, so that the force between the two adjacent tower sections can be transmitted between the positioning piece and the reinforcement channel, dispersing the force and making the structure of the tower more stable.

[0018] (4) A first flange and a second flange are provided on the inner tube at intervals. The first flange is connected to the first mounting end plate, and the second flange is connected to the second mounting end plate. In this way, when splicing, it is only necessary to connect the first flange of one tower section with the flange of another tower section to complete the splicing, which is conducive to improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 is a schematic diagram of a tower structure described in one embodiment;

[0021] Figure 2 is a cross-sectional view of a tower section according to one embodiment;

[0022] Figure 3 is a cross-sectional view of a tower structure according to one embodiment;

[0023] Figure 4 for Figure 3 A magnified view of the structure at the center circle A;

[0024] Figure 5 is a structural schematic diagram of one end of a tower section according to an embodiment;

[0025] Figure 6 is a structural schematic diagram of the other end of a tower section according to an embodiment;

[0026] Figure 7 It is a structural cross-sectional view of a tower section described in another embodiment.

[0027] Description of Figure Numbers:

[0028] 100. Tower structure; 10. Tower section; 11. Outer tube; 12. Inner tube; 13. Reinforcement assembly; 131. First reinforcing plate; 132. Second reinforcing plate; 133. Reinforcement channel; 134. Pressure spring; 14. First mounting end plate; 141. Positioning member; 15. Second mounting end plate; 151. Positioning hole; 16. First flange; 17. Second flange; 18. Door opening.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0033] In one embodiment, please refer to Figures 1 to 7The present application provides a tower structure 100, which includes a plurality of tower sections 10. Each tower section 10 can be disassembled and spliced ​​in sequence along its own axial direction, wherein each tower section 10 includes an outer tube 11, an inner tube 12, a reinforcement assembly 13, a first mounting end plate 14 and a second mounting end plate 15. The outer tube 11 is sleeved on the outside of the inner tube 12, the reinforcement assembly 13 is connected between the outer tube 11 and the inner tube 12, the first mounting end plate 14 is connected to one end of the outer tube 11 and the inner tube 12, and the second mounting end plate 15 is connected to the other end of the outer tube 11 and the inner tube 12; between two adjacent tower sections 10, the first mounting end plate 14 of one tower section 10 is connected to the second mounting end plate 15 of the other tower section 10.

[0034] The tower structure 100 described above is designed to be composed of multiple segmented tower sections 10. This allows the individual tower sections 10 to be separated during transportation, reducing the volume of the tower structure 100 and making it easier to transport. This reduces installation location restrictions and improves transportation efficiency. Furthermore, during installation, the individual tower sections 10 can be detachably spliced ​​sequentially along their respective axial directions. This, compared to traditional structures, helps shorten the installation cycle and reduce installation costs. Furthermore, the tower section 10 comprises an inner tube 12, an outer tube 11, and a reinforcement assembly 13 disposed between the inner tube 12 and the outer tube 11, forming a sandwich structure. The outer tube 11 resists external environmental forces, while the inner tube 12 bears internal loads. The deformation of the reinforcement assembly 13 disperses stress on the inner tube 12 and the outer tube 11, thus avoiding stress concentration. This allows the various layers of the tower section 10 to be subjected to coordinated forces, improving the stability of the tower structure 100 under complex load conditions and ensuring structural safety.

[0035] It should be noted that the reinforcement assembly 13 can be connected to the inner tube 12 and outer tube 11 in a variety of ways, including but not limited to welding, clamping, pinning, and riveting. Specifically, the reinforcement assembly 13 is secured to the inner tube 12 and outer tube 11 by welding. Of course, in addition to welding, additional riveting or high-strength bolting can be used at key stress-bearing locations as a supplementary connection method. The spacing between the riveted or bolted connections can be appropriately increased, generally to 200mm to 500mm, to enhance the stability of the structure under complex stress conditions.

[0036] The reinforcement assembly 13 can be made of thin steel plates, and its thickness can be determined according to the strength requirements of the tower structure 100, for example, 100 mm to 150 mm. This structure not only increases the structural strength between the inner tube 12 and the outer tube 11, but also improves their anti-buckling ability to a certain extent.

[0037] To further enhance the stability of tower structure 100, outer tube 11 can be constructed from high-strength, corrosion-resistant alloy steel plates. The thickness of these plates is determined based on the diameter of tower structure 100 and the environmental loads to which they are subjected. This alloy steel exhibits high yield strength and fatigue resistance, effectively protecting against environmental impacts such as wind and rain erosion. Furthermore, the surface of outer tube 11 can be treated with a special anti-corrosion coating, such as a zinc-aluminum coating with a thickness of approximately 80 to 150 μm, to further enhance its corrosion resistance.

[0038] In addition, the inner tube 12 may also be made of high-strength alloy steel plates to bear the internal pressure of the tower structure 100, the weight of the wind turbine generator set, and the transmitted wind load.

[0039] It should also be explained that when the inner cylinder 12, outer cylinder 11, and reinforcement assembly 13 are all made of steel plates, during the processing, the steel plates of the outer cylinder 11, reinforcement assembly 13, and inner cylinder 12 are subjected to cutting, stamping, rolling, and other processing operations. Cutting uses CNC flame cutting or plasma cutting technology to ensure the flatness and dimensional accuracy of the cut surface. During the stamping and rolling processes, mold parameters and processing parameters are strictly controlled to ensure that the shape of the steel plates meets the design requirements. At the same time, when the reinforcement assembly 13 is welded, an appropriate welding method can be selected based on the material of the steel plates, such as gas shielded welding or submerged arc welding. Welding parameters (such as current, voltage, welding speed, etc.) are determined through rigorous process evaluation. Before welding, the welding area of ​​the steel plates is cleaned and preheated. After welding, the weld seam is inspected, such as using ultrasonic testing or magnetic particle testing, to ensure that the weld quality meets the design standards and is free of welding defects such as pores, cracks, and slag inclusions.

[0040] For further information, please refer to Figure 2 The reinforcement assembly 13 includes a first reinforcement plate 131 and a second reinforcement plate 132. The first reinforcement plate 131 and the second reinforcement plate 132 are both located between the outer tube 11 and the inner tube 12, and both extend along the axial direction of the tower section 10. The first reinforcement plate 131 and the second reinforcement plate 132 are both connected between the outer tube 11 and the inner tube 12.

[0041] For further information, please refer to Figure 2 One side of the first reinforcing plate 131 is connected to one side of the second reinforcing plate 132 and fixed to the outer cylinder 11. The other side of the first reinforcing plate 131 and the other side of the second reinforcing plate 132 are connected to the inner cylinder 12 at intervals. The first and second reinforcing plates 131, 132, and the inner cylinder 12 enclose a reinforcement channel 133. As can be seen, the design of the reinforcement assembly 13 as a first reinforcing plate 131 and a second reinforcing plate 132 ensures a stable connection between the inner cylinder 12 and the outer cylinder 11, facilitates stress distribution across the various structures, reduces stress concentration, and improves structural safety. This also simplifies the structural design of the reinforcement assembly 13 and improves construction efficiency.

[0042] It should be noted that the connection between the first reinforcing plate 131 and the second reinforcing plate 132 may be, but is not limited to, welding, clamping, riveting, bolting, etc. Of course, the first reinforcing plate 131 and the second reinforcing plate 132 may also be designed as an integrated structure, for example, by bending the first reinforcing plate 131 and the second reinforcing plate 132 into shape using a bending process.

[0043] In one embodiment, please refer to Figure 5 and Figure 6 In two adjacent tower sections 10, a positioning member 141 is protruding from the first mounting end plate 14, and a positioning hole 151 communicating with the reinforcement channel 133 is provided on the second mounting end plate 15. The positioning member 141 passes through the positioning hole 151 and extends into the reinforcement channel 133. As can be seen, the positioning member 141 is provided on the first mounting end plate 14, and the positioning hole 151 communicating with the reinforcement channel 133 is provided on the second mounting end plate 15. During installation, the positioning member 141 can be inserted into the positioning hole 151 to achieve preliminary positioning, which facilitates the rapid alignment of the two adjacent tower sections 10 and improves installation efficiency. At the same time, after the positioning member 141 passes through the positioning hole 151 and extends into the reinforcement channel 133, the force between the two adjacent tower sections 10 can be transmitted between the positioning member 141 and the reinforcement channel 133, dispersing the force and making the tower structure more stable.

[0044] For further information, please refer to Figure 7 A pressing spring piece 134 is provided on the side of the first reinforcing plate 131 facing the reinforcement channel 133. The end of the pressing spring piece 134, which is close to the second mounting end plate 15, is connected to the first reinforcing plate 131, and a deformation gap is formed between the end of the pressing spring piece 134, which is away from the second mounting end plate 15, and the first reinforcing plate 131. The pressing spring piece 134 is used to drive the positioning member 141 to abut against the side of the second reinforcing plate 132 facing the reinforcement channel 133. In this way, the pressing spring piece 134 elastically presses the positioning member 141 against the side of the second reinforcing plate 132, so that the positioning member 141 is uniformly positioned on the second reinforcing plate 132, thereby preventing two adjacent tower sections 10 from shaking in the circumferential direction.

[0045] It should be noted that the pressing spring 134 is a sheet metal structure elastically fixed to the first reinforcing plate 131. This reduces the gap between the positioning member 141 and the first reinforcing plate 131 and the second reinforcing plate 132, ensuring a tight connection between the structures. The pressing spring 134 can be a metal sheet, such as a steel sheet, punched out inwardly from the first reinforcing plate 131.

[0046] In one embodiment, please refer to Figure 5 and Figure 6There are multiple positioning members 141 and positioning holes 151, and they are arranged one-to-one. All positioning members 141 and positioning holes 151 are spaced apart around the axis of the tower section 10. It can be seen that the one-to-one matching of multiple positioning members 141 and positioning holes 151 increases the bonding force between two adjacent tower sections 10, improving the stability and safety of the structure.

[0047] In one embodiment, please refer to Figure 3 and Figure 4 Each tower section 10 includes a first flange 16 and a second flange 17. The first flange 16 and the second flange 17 are both located on the side of the inner tube 12 facing away from the outer tube 11. The first flange 16 is connected to the first mounting end plate 14, and the second flange 17 is connected to the second mounting end plate 15. In two adjacent tower sections 10, the first flange 16 of one tower section 10 is connected to the second flange 17 of the other tower section 10. It can be seen that the first flange 16 and the second flange 17 are spaced apart on the inner tube 12. The first flange 16 is connected to the first mounting end plate 14, and the second flange 17 is connected to the second mounting end plate 15. In this way, when splicing, it is only necessary to connect the first flange 16 of one tower section 10 to the flange of the other tower section 10 to complete the splicing, which is conducive to improving installation efficiency.

[0048] It should be explained that the first flange 16 and the second flange 17 can be connected by bolts.

[0049] Furthermore, the tower structure 100 further includes a sealing gasket, which is provided between the first flange 16 and the second flange 17. It can be seen that the sealing gasket increases the airtightness of the structure.

[0050] Among them, the material of the sealing gasket can be rubber asbestos board or polytetrafluoroethylene, etc., with a thickness of 3mm to 5mm to ensure the sealing of the connection part and prevent rainwater, sand and dust from entering the interior of the tower.

[0051] In one embodiment, please refer to Figure 1 In the lowest tower section 10, the outer tube 11 is provided with a doorway 18 that penetrates the inner tube 12. The inner tube 12 is provided with reinforcing ribs on the side facing away from the outer tube 11. The reinforcing ribs extend along the circumference of the doorway 18. It can be seen that the reinforcing ribs improve the structural strength at the doorway 18 and enhance the stability of the structure.

[0052] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A tower structure, characterized in that: The tower structure includes a plurality of tower sections (10), each of which is detachably spliced ​​in sequence along its own axial direction, wherein each of the tower sections (10) includes an outer tube (11), an inner tube (12), a reinforcement assembly (13), a first mounting end plate (14) and a second mounting end plate (15); the outer tube (11) is sleeved on the outside of the inner tube (12); the reinforcement assembly (13) is connected between the outer tube (11) and the inner tube (12); the first mounting end plate (14) is connected to one end of the outer tube (11) and the inner tube (12); and the second mounting end plate (15) is connected to the other end of the outer tube (11) and the inner tube (12); Between two adjacent tower sections (10), a first mounting end plate (14) of one tower section (10) is connected to a second mounting end plate (15) of the other tower section (10).

2. A tower structure according to claim 1, characterized in that: The reinforcement assembly (13) includes a first reinforcement plate (131) and a second reinforcement plate (132), wherein the first reinforcement plate (131) and the second reinforcement plate (132) are both located between the outer tube (11) and the inner tube (12), and both extend along the axial direction of the tower section (10), and the first reinforcement plate (131) and the second reinforcement plate (132) are both connected between the outer tube (11) and the inner tube (12).

3. A tower structure according to claim 2, characterized in that: One side of the first reinforcing plate (131) and one side of the second reinforcing plate (132) are connected together and fixed on the outer cylinder (11); the other side of the first reinforcing plate (131) and the other side of the second reinforcing plate (132) are connected to the inner cylinder (12) at intervals; and the first reinforcing plate (131), the second reinforcing plate (132) and the inner cylinder (12) enclose a reinforcement channel (133).

4. A tower structure according to claim 3, characterized in that: In two adjacent tower sections (10), a positioning piece (141) is protruding from the first mounting end plate (14), and a positioning hole (151) communicating with the reinforcement channel (133) is provided on the second mounting end plate (15); the positioning piece (141) passes through the positioning hole (151) and extends into the reinforcement channel (133).

5. A tower structure according to claim 4, characterized in that: A pressing spring sheet (134) is provided on one side of the first reinforcing plate (131) facing the reinforcing channel (133); the pressing spring sheet (134) is connected to the first reinforcing plate (131) at one end close to the second mounting end plate (15), and a deformation gap is formed between the end away from the second mounting end plate (15) and the first reinforcing plate (131); the pressing spring sheet (134) is used to drive the positioning member (141) to abut against a side of the second reinforcing plate (132) facing the reinforcing channel (133).

6. The tower structure according to claim 4, characterized in that: There are multiple positioning members (141) and positioning holes (151), which are arranged one-to-one. All positioning members (141) and positioning holes (151) are distributed at intervals around the axis of the tower section (10).

7. A tower structure according to any one of claims 1 to 6, characterized in that: Each of the tower sections (10) includes a first flange (16) and a second flange (17). The first flange (16) and the second flange (17) are both arranged on a side of the inner tube (12) facing away from the outer tube (11). The first flange (16) is connected to the first mounting end plate (14), and the second flange (17) is connected to the second mounting end plate (15). In two adjacent tower sections (10), the first flange (16) of one tower section (10) is connected to the second flange (17) of the other tower section (10).

8. The tower structure according to claim 7, characterized in that: The tower structure further comprises a sealing gasket, which is arranged between the first flange (16) and the second flange (17).

9. A tower structure according to any one of claims 1 to 6, characterized in that: Located in the lowest tower section (10), the outer tube (11) is provided with a doorway (18) penetrating the inner tube (12), and the inner tube (12) is provided with a reinforcing rib on a side facing away from the outer tube (11), and the reinforcing rib is extended along the circumference of the doorway (18).

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