Hollow interlayer crossed corrugated plate tower drum structure

Abstract

The utility model provides a hollow interlayer crossed corrugated plate tower tube structure, which comprises a steel tower tube, the steel tower tube adopts a hollow concrete pouring corrugated tube structure, the steel tower tube comprises a wavy inner ring tower tube and a wavy outer ring tower tube, the inner ring tower tube and the outer ring tower tube are concentrically arranged, and the inner ring tower tube and the outer ring tower tube are arranged in parallel. The overlapping position of the inner ring tower drum and the outer ring tower drum is fixed through bolts, and concrete is poured in a hollow space formed by the inner ring tower drum and the outer ring tower drum. The structural form is simple and comprises the steel tower barrels of the steel corrugated plates with the two different diameters and the concrete, the steel tower barrels with the two different diameters are fixedly connected in a bolt mode in the structural form, the concrete is poured between the inner ring steel tower barrel and the outer ring steel tower barrel, and a new structural system is formed. Under the condition that the wall thickness or height of the tower drum is not increased, the rigidity and strength of the original steel tower drum are improved, the bearing capacity of a fan unit is met, and the steel amount of the steel tower drum is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power tower equipment, in particular to a hollow sandwich cross corrugated plate tower structure. Background Art

[0002] In wind power projects, wind turbine towers are the supporting structures of wind turbines. Steel towers are made of rolled steel plates, and their main function is to support the weight of the unit. The height of the steel tower depends on the size of the wind turbine and the expected wind energy resources, and can reach tens of meters or even hundreds of meters.

[0003] With the rapid development of wind turbines, steel towers need to have greater height, rigidity and strength, which leads to the increasing diameter of traditional steel vertebral tube towers, increasing steel wall thickness and steel consumption, which greatly increases the difficulty of production and installation costs. Therefore, there is an urgent need for a wind turbine tower structure that can meet the requirements of height, rigidity and strength while also taking into account the control of engineering costs. Summary of the invention

[0004] The purpose of the utility model is to provide a hollow sandwich cross corrugated plate tower structure, which improves the rigidity and strength of the original steel tower without increasing the wall thickness or height of the tower, meets the bearing capacity of the wind turbine unit, and effectively reduces the amount of steel in the steel tower.

[0005] According to one purpose of the utility model, the utility model provides a hollow sandwich cross corrugated plate tower structure, including a steel tower, the steel tower adopts a hollow cast concrete corrugated tube structure, the steel tower includes a wavy inner ring tower and an outer ring tower, the inner ring tower and the outer ring tower are concentrically arranged, the inner ring tower and the outer ring tower are fixed at the overlapping position by bolts, and concrete is poured in the hollow space formed by the inner ring tower and the outer ring tower.

[0006] Furthermore, the steel tower is fixed on the wind turbine foundation, a cabin is fixed on the top of the steel tower, a hub is installed in the cabin, and blades are installed on the hub.

[0007] Furthermore, the diameter of the steel tower gradually decreases from bottom to top.

[0008] Furthermore, the wave pattern units of the inner ring tower and the outer ring tower are symmetrically arranged.

[0009] Furthermore, the steel tower is a segmented tower structure, and the steel tower includes a first steel tower section, a second steel tower section, a third steel tower section and a fourth steel tower section which are sequentially connected from bottom to top.

[0010] Furthermore, the first section of the steel tower, the second section of the steel tower, the third section of the steel tower and the fourth section of the steel tower respectively include three sections of steel tower units, each section of the steel tower unit is composed of the inner ring tower and the outer ring tower, and the hollow space inside the inner ring tower and the outer ring tower is poured with concrete.

[0011] Furthermore, each section of the steel tower unit is welded in sequence in the height direction or connected by flanges.

[0012] Furthermore, the diameter of each section of the steel tower unit connected sequentially from bottom to top gradually decreases, and the bottom diameter of the steel tower unit located at the upper section is equal to the top diameter of the steel tower unit located at the lower section.

[0013] Furthermore, reserved holes are provided at the parts where the corrugated steel plates of the inner ring tower and the outer ring tower are in contact with each other.

[0014] Furthermore, the outer sides of the inner ring tower and the outer ring tower are coated with an anti-rust coating.

[0015] The technical solution of the utility model has a simple structure, including two steel towers with different diameters of steel corrugated plates and concrete. The structure adopts bolts to fix the steel towers of two diameters, and pours concrete between the inner ring steel tower and the outer ring steel tower to form a new structural system. Without increasing the wall thickness or height of the tower, the rigidity and strength of the original steel tower are improved, the bearing capacity of the wind turbine unit is met, and the amount of steel in the steel tower is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic cross-sectional view of a steel tower according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the inner ring tower and the outer ring tower in the embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the use structure of the tower structure of the embodiment of the utility model;

[0020] In the figure: 1. Wind turbine foundation; 2. Steel tower; 201. Section 1 steel tower; 202. Section 2 steel tower; 203. Section 3 steel tower; 204. Section 4 steel tower; 3. Nacelle; 4. Hub; 5. Blades; 6. Concrete; 7. Inner ring tower; 8. Outer ring tower; 9. Bolts. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Example 1

[0025] like Figure 1-Figure 3 As shown,

[0026] A hollow sandwich cross corrugated plate tower structure comprises a wind turbine foundation 1 and a steel tower 2. The steel tower 2 is arranged on the wind turbine foundation 1. A cabin 3 is fixed on the top of the steel tower 2. A hub 4 is installed in the cabin 3. Blades 5 are installed on the hub 4.

[0027] The diameter of the steel tower 2 gradually decreases from bottom to top. The steel tower 2 adopts a corrugated tube structure with hollow cast concrete 6. Specifically, the steel tower 2 includes a wavy inner ring tower 7 and an outer ring tower 8. The inner ring tower 7 and the outer ring tower 8 are concentrically arranged, and the wavy units of the inner ring tower 7 and the outer ring tower 8 are symmetrically arranged. The inner ring tower 7 and the outer ring tower 8 are fixed at their overlapping positions by bolts 9. Concrete 6 is cast in the hollow space formed by the inner ring tower 7 and the outer ring tower 8.

[0028] In this embodiment, the inner ring tower 7 and the outer ring tower 8 form a hollow sandwich design. The hollow sandwich structure formed by pouring concrete between the inner ring tower and the outer ring tower provides additional stability and durability. At the same time, the addition of concrete effectively improves the overall seismic performance and structural stiffness.

[0029] In this embodiment, the steel tower 2 adopts a segmented tower structure. In this embodiment, the steel tower 2 is divided into four sections, including a first section steel tower 201, a second section steel tower 202, a third section steel tower 203 and a fourth section steel tower 204. Each section of the steel tower 2 includes three sections of steel tower units, each section of the steel tower unit is composed of an inner ring tower 7 and an outer ring tower 8, and the hollow space inside the inner ring tower 7 and the outer ring tower 8 is poured with concrete 6. Each section of the steel tower 2 is welded and connected in sequence in the height direction to form a complete steel tower 2.

[0030] In this embodiment, the steel tower 2 is designed as a multi-section tower structure. Through segmented and modular design, the segmented design of the steel tower allows flexible assembly and installation under different site conditions, and the design of gradually decreasing diameter of each section helps to optimize material usage and reduce weight while maintaining structural stability and safety.

[0031] In this embodiment, the diameter of each section of the steel tower 2 connected sequentially from bottom to top shows a trend of gradually decreasing, and the bottom diameter of the steel tower 2 at the upper section is equal to the top diameter of the steel tower 2 at the lower section.

[0032] In this embodiment, the inner ring tower 7 and the outer ring tower 8 are welded by steel corrugated plates to form a cylindrical structure, and the inner ring tower 7 and the outer ring tower 8 are concentric circles, and the lines of the inner ring tower 7 and the outer ring tower 8 are opposite. Pre-set holes are provided in the parts where the corrugated steel plates of the inner ring tower 7 and the outer ring tower 8 fit together, and bolts 9 are passed through the pre-set holes on the inner ring tower 7 and the outer ring tower 8, so as to connect the inner ring tower 7 and the outer ring tower 8 together to form a segmented steel tower 2.

[0033] In this embodiment, the inner ring tower 7 and the outer ring tower 8 adopt a steel corrugated plate structure. The inner ring tower 7 and the outer ring tower 8 adopt a steel corrugated plate design, which not only increases the aesthetics of the structure, but also helps to enhance the bearing capacity and wind resistance of the tower. The cross setting of the steel corrugated plates further enhances these properties.

[0034] In this embodiment, the two sections of the steel tower 2 can be connected by welding, or by welding flanges and then connecting them via flanges.

[0035] In this embodiment, the inner ring tower 7 and the outer ring tower 8 are fixed by welding and bolts. The welding and bolting methods make the connection between the various components more secure and also facilitate maintenance and replacement when necessary.

[0036] In the above embodiment, a cable channel may be integrated on the inner side of the inner ring tower, and cables may be laid on the inner side wall of the inner ring tower to protect the cables from the external environment and simplify the wiring inside the tower.

[0037] In the above embodiment, the inner ring tower 7 and the outer ring tower 8 may also use high-performance composite materials or advanced metal alloys to replace traditional steel, which may provide better corrosion resistance and weight reduction effects while maintaining the strength and rigidity of the structure. The surfaces of the inner ring tower 7 and the outer ring tower 8 may also be treated, such as coating or plating, to improve their weather resistance and reduce maintenance requirements.

[0038] When installing and manufacturing this utility model:

[0039] The flange is fixed to the inner ring tower 7 at the bottom by welding, and then the corresponding outer ring tower 8 is aligned with the center of the inner ring tower 7, and the flange is fixed to the outer ring tower 8 at the bottom by welding. The inner ring tower 7 and the outer ring tower 8 are in a cross-overlapping structure, and each overlapping position of the inner ring tower 7 and the outer ring tower 8 is connected by bolts 9;

[0040] Then, concrete 6 is poured into the hollow space formed between the inner ring tower 7 and the outer ring tower 8; thus, one section of the steel tower 2 is manufactured; after the bottom section of the steel tower 2 is manufactured, the steel tower 2 is fixed to the wind turbine foundation 1 by a flange;

[0041] Then, continue to install another section of the steel tower 2 in the above manner until all sections of the steel tower 2 are completed. Then, each section of the steel tower 2 is fixedly connected by flanges to form a complete hollow sandwich cross corrugated plate tower structure.

[0042] The utility model relates to a hollow sandwich cross corrugated plate tower structure, which has a simple structural form and includes a steel tower 2 with two different diameters of steel corrugated plates and concrete 6. The structural form adopts bolts 9 to fix the steel towers 2 of two diameters, and pours concrete 6 between the inner ring steel tower and the outer ring steel tower 2 to form a new structural system. Without increasing the wall thickness or height of the tower, the rigidity and strength of the original steel tower 2 are improved, the bearing capacity of the wind turbine unit is met, and the amount of steel in the steel tower 2 is effectively reduced. The new structure is low-cost, can provide sufficient bearing capacity, and is relatively convenient and quick in manufacturing technology, material transportation and construction process, and can also be used to reinforce the structure based on the existing steel tower 2.

[0043] The utility model solves the problem that the tower height, rigidity and strength increase, resulting in the increase of tower wall thickness and engineering quantity. According to the height of the steel tower 2, the number of tower sections and the height and diameter of each section are also different.

[0044] In the manufacturing and installation method of the utility model, the steel corrugated plates with smaller diameters are connected by welding to form the inner ring steel tower 2, and the steel corrugated plates with larger diameters are also connected by welding to form the outer ring steel tower 2. The inner and outer ring steel towers 2 need to be aligned with the same center of a circle, and the texture of the outer ring steel corrugated plates needs to be opposite to the texture of the inner ring steel corrugations, presenting a crossed inner and outer ring steel tower 2. Openings are reserved at the overlapping positions of the crossed steel towers 2, and bolts 9 are used to connect at each overlapping position to form segmented inner and outer ring steel towers 2. Afterwards, the two sections of the inner and outer ring segmented steel towers are welded into one section of the steel tower.

[0045] After the connection of the two sections of the steel tower is completed, the third section, the fourth section and other steel towers are installed according to the above connection steps and forms to form a segmented steel tower 2. At this time, concrete 6 is poured between the outer ring steel tower 2 and the inner ring steel tower 2, and flange plates are welded on both ends of the steel tower 2, and then the two sections of the tower are fastened and connected with high-strength bolts 9. After that, according to the different sizes of the wind turbine, the segmented steel towers of different heights are connected by flanges to complete the installation of the entire inner and outer ring steel corrugated plate steel tower 2 structure, thereby realizing the power generation of the wind turbine.

[0046] The utility model has a simple structure, and forms an inner and outer ring steel tower 2 structure by two steel corrugated plates of different diameters, and pours concrete 6 between the inner and outer ring steel tower 2 to form a stable structural system. Without increasing the wall thickness or height of the tower, the rigidity and strength of the original steel tower 2 are improved, and the bearing capacity of the wind turbine unit is met, effectively reducing the amount of steel for the steel tower 2. The new structure is low-cost, can provide sufficient bearing capacity, and is relatively convenient and fast in manufacturing process, material transportation and construction process.

[0047] Moreover, this structure can also be applied to the original steel tower 2 to increase its capacity as a reinforcement method. A steel tower 2 with a diameter larger than the original one is selected and aligned with the center of the original steel tower 2. Two 1 / 2 segmented steel corrugated plates are fixedly connected by bolts 9 to form a steel tower 2 in the outer ring of the reinforced structure. Concrete 6 is poured between the original and newly reinforced steel tower 2 to form a new reinforced structure. The demand for increasing the capacity of the wind turbine is met without dismantling the original structure.

[0048] The corrugated plate tower structure disclosed in the utility model can be used for wind power generation. The design of this tower structure can also be applied to other occasions requiring high rigidity and strength, such as large outdoor advertising structures, communication towers, etc. In general, this hollow sandwich cross corrugated plate tower structure demonstrates the in-depth consideration of cost, efficiency and environmental impact in modern engineering design, and provides an innovative and practical solution for wind power tower design.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A hollow sandwich cross corrugated plate tower structure, characterized in that: It includes a steel tower, which adopts a corrugated tube structure with hollow cast concrete. The steel tower includes a wavy inner ring tower and an outer ring tower. The inner ring tower and the outer ring tower are concentrically arranged, and the overlapping position of the inner ring tower and the outer ring tower is fixed by bolts. Concrete is poured in the hollow space formed by the inner ring tower and the outer ring tower.

2. The hollow sandwich cross corrugated plate tower structure according to claim 1, characterized in that: The steel tower is fixed on the wind turbine foundation, a cabin is fixed on the top of the steel tower, a hub is installed in the cabin, and blades are installed on the hub.

3. The hollow sandwich cross corrugated plate tower structure according to claim 1, characterized in that: The diameter of the steel tower gradually decreases from bottom to top.

4. The hollow sandwich cross corrugated plate tower structure according to claim 1, characterized in that: The wave pattern units of the inner ring tower and the outer ring tower are symmetrically arranged.

5. The hollow sandwich cross corrugated plate tower structure according to claim 1, characterized in that: The steel tower is a segmented tower structure, and includes a first section of steel tower, a second section of steel tower, a third section of steel tower and a fourth section of steel tower which are sequentially connected from bottom to top.

6. The hollow sandwich cross corrugated plate tower structure according to claim 5, characterized in that: The first section of the steel tower, the second section of the steel tower, the third section of the steel tower and the fourth section of the steel tower respectively include three sections of steel tower units, each section of the steel tower unit is composed of the inner ring tower and the outer ring tower, and the hollow space inside the inner ring tower and the outer ring tower is poured with concrete.

7. The hollow sandwich cross corrugated plate tower structure according to claim 6, characterized in that: Each section of the steel tower unit is welded in sequence in the height direction or connected by flanges.

8. The hollow sandwich cross corrugated plate tower structure according to claim 7, characterized in that: The diameter of each section of the steel tower barrel unit connected in sequence from bottom to top gradually decreases, and the bottom diameter of the steel tower barrel unit at the upper section is equal to the top diameter of the steel tower barrel unit at the lower section.

9. The hollow sandwich cross corrugated plate tower structure according to claim 8, characterized in that: The parts where the corrugated steel plates of the inner ring tower and the outer ring tower are in contact are both provided with reserved holes.

10. The hollow sandwich cross corrugated plate tower structure according to claim 1, characterized in that: The outer sides of the inner ring tower and the outer ring tower are coated with an anti-rust coating.

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