Fabricated prestressed concrete frame tube tower wind power tower

Abstract

The invention provides an assembly type prestressed concrete frame drum tower wind power tower which comprises a concrete frame drum tower body, an external prestressed cable and a foundation, the concrete frame drum tower body is fixedly installed on the foundation, and the appearance of the concrete frame drum tower body is of a cone frustum or pyramid frustum structure; external prestressed cables are evenly distributed between the top of the concrete frame tube tower and the foundation. The external prestressing cables are installed in the concrete frame tube tower, and the overall rigidity and stability of the tower can be effectively enhanced through the external prestressing cables. The middle part of the tower is designed to be of the hollow structure, the design not only reduces the self weight of the structure, but also has a good wind gathering effect, and the hollow structure can guide the wind flow and increase the flowability of the wind speed, so that the rotating speed of blades of the wind turbine generator is driven, and the power generation efficiency is improved.

Description

Technical Field

[0001] The invention relates to an assembled prestressed concrete frame tube tower wind power tower, belonging to the technical field of wind power towers. Background Art

[0002] With the continuous growth of global energy demand and the increasing awareness of environmental protection, wind energy, as a clean and renewable energy, has received more and more attention and development. Especially in my country, the western region, as an important energy base, has rich wind energy resources, which provides unique conditions for the development of the wind power industry. In recent years, the wind power industry has developed rapidly in the western region, which has not only injected new vitality into the local economic development, but also made important contributions to the energy supply of the country and even the world.

[0003] With the continuous advancement of wind power technology, the frame tower is an important supporting structure for wind turbines, and its design and manufacturing technology innovation is particularly important. Traditional wind turbine towers are mostly made of steel, including two main forms: truss and cylindrical. However, as the size of wind turbines increases, the requirements for towers are also getting higher and higher. Traditional steel towers can no longer meet the requirements in some aspects. For example, steel towers are heavy, difficult to construct, and take a long time to complete. They are also easily restricted during transportation and installation.

[0004] In order to solve these problems, people began to study composite towers. Composite towers have the advantages of light weight, low cost, reduced wind vibration load and can be manufactured on site, so they have attracted widespread attention. However, the research and development and manufacturing technology of composite towers are still in the development stage, and there are relatively few related studies, mainly involving the production method and structure of composite towers. This shows that although composite towers have many advantages, their technical level and industrialization requirements are also relatively high, requiring more research and development and innovation investment.

[0005] In this context, the invention patent of frame-tube tower is of great significance. As a new type of wind turbine support structure, the frame-tube tower combines the advantages of traditional towers and composite towers, aiming to improve the load-bearing capacity of the tower, reduce weight and construction difficulty, and improve the overall performance and stability of the wind turbine. The design of the frame-tube tower usually adopts a modular structure, which is easy to transport and install, and can adapt to the requirements of different terrains and climatic conditions. Therefore, with the continuous advancement and innovation of wind power technology, the frame-tube tower is expected to become an important development direction of future wind turbine support structures. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention proposes an assembled prestressed concrete frame tube tower wind power tower with low cost, light weight, good rigidity and stability, and simple assembly.

[0007] The technical solution of the present invention is: an assembled prestressed concrete frame tube tower wind power tower, including a concrete frame tube tower, external prestressed cables and a foundation. The concrete frame tube tower is fixedly installed on the foundation. The shape of the concrete frame tube tower is a frustum of a cone or a prism structure, and external prestressed cables are evenly distributed between the top of the concrete frame tube tower and the foundation.

[0008] Furthermore, the concrete frame-tube tower includes a group of frame-tube tower columns fixedly installed on a foundation, all of the frame-tube tower columns are arranged around the center line of the concrete frame-tube tower at a certain inclination angle and a certain included angle, a group of frame-tube tower beams are fixedly installed from bottom to top between adjacent frame-tube tower columns, and external prestressed cables are vertically anchored between the top of each frame-tube tower column and the foundation.

[0009] Furthermore, the inclination angle between the center line of the frame tube tower column and the center line of the concrete frame tube tower frame is 1 to 3 degrees, and the angle between the center lines of adjacent frame tube tower columns is 2 to 5 degrees.

[0010] Furthermore, the frame tube tower beam is an arc-shaped or straight-line structure.

[0011] Furthermore, the center line of the frame tube tower column and the corresponding external prestressed cable are in the same plane.

[0012] Due to the adoption of the above technical solution, the advantages of the present invention are:

[0013] 1. The wind turbine tower of the present invention is assembled from frame-tube tower beams and frame-tube tower columns. These components are standardized in prefabrication factories. The prefabricated frame-tube tower beams and frame-tube tower columns are transported to the wind farm site for assembly, which greatly shortens the construction period and reduces the dependence on the on-site working environment.

[0014] 2. The present invention installs external prestressed cables in the concrete frame tower, and these external prestressed cables can effectively enhance the overall rigidity and stability of the tower.

[0015] 3. The middle part of the tower of the present invention is designed as a hollow structure. This design not only reduces the dead weight of the structure, but also has a good wind gathering effect. The hollow structure can guide the wind flow and increase the fluidity of the wind speed, thereby driving the rotation speed of the wind turbine blades and improving the power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the full assembly of the present invention;

[0017] Figure 2 It is a schematic elevation diagram of the fully assembled structure of the present invention;

[0018] Figure 3 It is a three-dimensional schematic diagram of the concrete frame tower of the present invention;

[0019] Figure 4 It is a three-dimensional schematic diagram of the upper tower section assembly of the concrete frame tower of the present invention;

[0020] Figure 5 It is a three-dimensional schematic diagram of the assembly of the middle tower section of the concrete frame tower of the present invention;

[0021] Figure 6 It is a three-dimensional schematic diagram of the assembly of the lower tower section of the concrete frame tower of the present invention;

[0022] Figure 7 It is a schematic plan view of the concrete frame tower of the present invention.

[0023] Explanation of the reference numerals: 1-concrete frame tower, 2-frame tower beam, 3-frame tower column, 4-prestressed cable, 5-foundation. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Example 1

[0026] The schematic diagram of the assembled prestressed concrete frame tube tower wind power tower of the present invention is as follows Figures 1 to 7 As shown, it includes a concrete frame tower 1, external prestressed cables 4 and a foundation 5. The concrete frame tower 1 is fixedly installed on the foundation 5. The appearance of the concrete frame tower 1 is a prism structure. The external prestressed cables 4 are evenly distributed between the top of the concrete frame tower 1 and the foundation 5.

[0027] The concrete frame tube tower 1 includes a group of frame tube tower columns 3 fixedly mounted on a foundation 5, all of which are arranged around the center line of the concrete frame tube tower 1 at a certain inclination angle and a certain included angle, a group of frame tube tower beams 2 are fixedly mounted from bottom to top between adjacent frame tube tower columns 3, and an external prestressed cable 4 is vertically anchored between the top of each frame tube tower column 3 and the foundation 5. The inclination angle between the center line of the frame tube tower column 3 and the center line of the concrete frame tube tower 1 is 2 degrees, and the included angle between the center lines of adjacent frame tube tower columns 3 is 3 degrees.

[0028] The frame-tube tower beam 2 is a linear structure. After the frame-tube tower beam 2 is installed between the frame-tube tower columns 3, a concrete frame-tube tower 1 with a prism-shaped pyramid structure is formed.

[0029] The center line of the frame tube tower column 3 and the corresponding external prestressed cable 4 are in the same plane to avoid lateral tension and ensure that the entire concrete frame tube tower 1 is subjected to balanced force.

[0030] Example 2

[0031] The difference between this embodiment and Embodiment 1 is that the inclination angle between the center line of the frame-tube tower column 3 and the center line of the concrete frame-tube tower frame 1 is 1 degree, the angle between the center lines of adjacent frame-tube tower columns 3 is 2 degrees, and an arc-shaped frame-tube tower beam 2 is assembled between the frame-tube tower columns 3, thereby forming a concrete frame-tube tower frame 1 with a truncated cone structure.

[0032] In summary, the wind power tower of the present invention is assembled from a frame tube tower beam 2 and a frame tube tower column 3. These components are standardized in prefabrication factories. The prefabricated frame tube tower beam 2 and frame tube tower column 3 are transported to the wind farm site for assembly, which greatly shortens the construction period and reduces the dependence on the on-site working environment. In addition, the present invention installs external prestressed cables 4 in the concrete frame tube tower 1. These external prestressed cables 4 can effectively enhance the overall rigidity and stability of the tower. In addition, the middle part of the tower of the present invention is designed as a hollow structure. This design not only reduces the dead weight of the structure, but also has a good wind gathering effect. The hollow structure can guide the wind flow and increase the fluidity of the wind speed, thereby driving the rotation speed of the wind turbine blades and improving the power generation efficiency.

Claims

1. An assembled prestressed concrete frame tube tower wind power tower, comprising a concrete frame tube tower (1), an external prestressed cable (4) and a foundation (5), characterized in that: The concrete frame tube tower (1) is fixedly mounted on a foundation (5); the concrete frame tube tower (1) has an outer shape of a truncated cone or a prism-shaped cone structure; external prestressed cables (4) are evenly distributed between the top of the concrete frame tube tower (1) and the foundation (5).

2. The assembled prestressed concrete frame tower wind power tower according to claim 1 is characterized in that: The concrete frame-tube tower (1) comprises a group of frame-tube tower columns (3) fixedly mounted on a foundation (5); all the frame-tube tower columns (3) are arranged around the center line of the concrete frame-tube tower (1) at a certain inclination angle and a certain included angle; a group of frame-tube tower beams (2) are fixedly mounted from bottom to top between adjacent frame-tube tower columns (3); and an external prestressed cable (4) is vertically anchored between the top of each frame-tube tower column (3) and the foundation (5).

3. The assembled prestressed concrete frame tower wind power tower according to claim 2 is characterized in that: The inclination angle between the center line of the frame tube tower column (3) and the center line of the concrete frame tube tower frame (1) is 1 to 3 degrees, and the angle between the center lines of adjacent frame tube tower columns (3) is 2 to 5 degrees.

4. The assembled prestressed concrete frame tower wind power tower according to claim 2 is characterized in that: The frame-tube tower beam (2) is an arc-shaped or straight-line structure.

5. The assembled prestressed concrete frame tower wind power tower according to claim 2 is characterized in that: The center line of the frame tower column (3) and the corresponding external prestressed cable (4) are in the same plane.

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