Concrete wing type double-tower wind power tower

Abstract

The invention provides a concrete wing-shaped double-tower wind power tower which comprises a vertical tower A, a vertical tower B, an inclined tower A, an inclined tower B, a main cross beam A, a prestressed cable and a foundation, the vertical tower A and the vertical tower B are fixedly installed on the foundation in parallel, the inclined tower A and the inclined tower B are fixedly installed on the top of the vertical tower A and the top of the vertical tower B respectively, and the inclined tower A and the inclined tower B are symmetrically and obliquely arranged. A main cross beam A is fixedly installed between the top of the vertical tower A and the top of the vertical tower B. A prestressed cable is fixedly connected between the top of the leaning tower A and the top of the leaning tower B. The concrete wing-shaped double-tower wind power tower structure not only inherits the advantages of low cost, high durability, environmental protection and the like of prestressed concrete materials, but also remarkably improves the aerodynamic performance of the tower by introducing the wing-shaped design, so that the wind energy capture efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to a concrete wing-shaped double-tower wind power tower, belonging to the technical field of wind power towers. Background Art

[0002] When further exploring the optimization path of wind power generation technology, we have to pay attention to the fact that the wind turbine tower is the supporting structure of the entire system. Its design innovation and practicality are crucial to improving the efficiency and reliability of the entire wind power system. Traditional wind turbine towers, whether made of steel or cast iron, have certain structural stability and strength, but their inherent limitations are becoming more and more obvious in the face of growing energy demand and environmental protection requirements.

[0003] As a high-performance building material, concrete can be used in wind turbine tower structures, which can not only significantly reduce material costs, but also reduce carbon emissions, which is in line with the current global pursuit of green, low-carbon and sustainable development. However, traditional concrete tower designs are often limited to simple geometric shapes, such as cylinders or cones, which have poor aerodynamic performance, resulting in limited wind energy capture efficiency.

[0004] To solve this problem, the industry began to explore the application of airfoil design concepts to wind turbine tower structures. Airfoil design originated from the aerospace field. By optimizing the cross-sectional shape, it can significantly improve the aerodynamic performance of the structure, reduce wind resistance, and increase wind energy capture efficiency. However, applying airfoil design to prestressed concrete wind turbine towers requires solving many challenges such as material properties, structural stability, construction difficulty, and cost-effectiveness. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention proposes a concrete airfoil double-tower wind turbine tower with excellent aerodynamic performance, low cost, good rigidity and stability, and simple assembly.

[0006] The technical solution of the present invention is as follows: a concrete wing-shaped double-tower wind power tower, comprising a vertical tower A, a vertical tower B, an inclined tower A, an inclined tower B, a main crossbeam A, a prestressed cable and a foundation, wherein the vertical tower A and the vertical tower B are fixedly installed in parallel on the foundation, the inclined tower A and the inclined tower B are fixedly installed on the top of the vertical tower A and the vertical tower B respectively, and the inclined tower A and the inclined tower B are symmetrically inclined and arranged, the main crossbeam A is fixedly installed between the tops of the vertical tower A and the vertical tower B, and the prestressed cable is fixedly connected between the tops of the inclined tower A and the inclined tower B.

[0007] Furthermore, a main crossbeam B is fixedly installed between the middle parts of the inclined tower A and the inclined tower B.

[0008] Furthermore, an arch beam is fixedly installed between the lower parts of the inclined tower A and the inclined tower B, and a vertical connecting column is fixedly installed between the arch beam and the main cross beam B.

[0009] Furthermore, the lengths of the vertical tower A and the vertical tower B are the same, the lengths of the inclined tower A and the inclined tower B are the same, and the length of the inclined tower A or the inclined tower B is less than 1 / 2 of the length of the vertical tower A or the vertical tower B.

[0010] Due to the adoption of the above technical solution, the advantages of the present invention are:

[0011] 1. The concrete airfoil double-tower wind turbine tower structure of the present invention not only inherits the advantages of low cost, high durability and environmental protection of prestressed concrete materials, but also significantly improves the aerodynamic performance of the tower by introducing the airfoil design, so that the wind energy capture efficiency is greatly improved. This design not only improves the power generation efficiency of the wind power system, but also reduces the operating cost and enhances the market competitiveness.

[0012] 2. The double-tower structure of the present invention not only enhances the stability of the entire tower, but also reduces the burden of a single tower by dispersing the force, thereby extending the service life. At the same time, this design also provides more space for installing and maintaining wind turbines, thereby improving the reliability and safety of the wind power system.

[0013] 3. The present invention simplifies the construction process, reduces the reliance on large-scale lifting equipment, and improves construction efficiency by decomposing the tower into multiple modules that are easy to transport and install. This modular design not only shortens the construction period, but also reduces the amount of on-site work and the impact on the environment, which is in line with the current green and sustainable development concept.

[0014] In summary, the concrete airfoil double-tower wind turbine tower structure of the present invention solves the deficiencies of the traditional wind turbine tower structure in terms of material cost, transportation and installation, wind energy utilization efficiency, and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the full assembly of the present invention;

[0016] Figure 2 It is a schematic elevation diagram of the fully assembled structure of the present invention;

[0017] Figure 3 It is a schematic side view of the full assembly of the present invention;

[0018] Figure 4 It is a fully assembled three-dimensional axonometric diagram of the present invention.

[0019] 5. Explanation of the reference numerals: 1-vertical tower A, 2-vertical tower B, 3-inclined tower A, 4-inclined tower B, 5-main beam A, 6-arch beam, 7-main beam B, 8-vertical connecting column, 9-prestressed cable, 10-foundation. DETAILED DESCRIPTION

[0020] 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.

[0021] Example

[0022] The schematic diagram of the concrete airfoil double-tower wind turbine tower of the present invention is as follows Figures 1 to 4 As shown, it includes a vertical tower A1, a vertical tower B2, an inclined tower A3, an inclined tower B4, a main crossbeam A5, a prestressed cable 9 and a foundation 10. The vertical tower A1 and the vertical tower B2 are fixedly installed in parallel on the foundation 10, and the inclined tower A3 and the inclined tower B4 are fixedly installed on the top of the vertical tower A1 and the vertical tower B2 respectively, and the inclined tower A3 and the inclined tower B4 are symmetrically inclined. A main crossbeam A5 is fixedly installed between the tops of the vertical tower A1 and the vertical tower B2, and a prestressed cable 9 is fixedly connected between the tops of the inclined towers A3 and the inclined tower B4.

[0023] A main cross beam B7 is fixedly installed between the middle parts of the inclined tower A3 and the inclined tower B4; an arch beam 6 is fixedly installed between the lower parts of the inclined tower A3 and the inclined tower B4, and a vertical connecting column 8 is fixedly installed between the arch beam 6 and the main cross beam B7.

[0024] The lengths of the vertical tower A1 and the vertical tower B2 are the same, the lengths of the inclined tower A3 and the inclined tower B4 are the same, and the length of the inclined tower A3 or the inclined tower B4 is less than 1 / 2 of the length of the vertical tower A1 or the vertical tower B2.

[0025] See also Figure 1 The vertical tower A1 and the vertical tower B2 in the present invention are fixedly installed in parallel on the foundation 10, which decomposes the load-bearing form of a single tower into a double-tower load-bearing form, enhances the stability of the entire tower frame, disperses the force, reduces the burden of the single tower, and prolongs the service life of the structure.

[0026] See also Figure 2 A main crossbeam A5 is fixedly installed between the tops of the vertical towers A1 and B2 to increase the stability of the main structure, reduce the calculated length of the towers, and enhance the force-bearing performance of the structure. Compared with a single tower, the load-bearing capacity is stronger.

[0027] See also Figure 2A main crossbeam B7 is fixedly installed between the middle parts of the inclined tower A3 and the inclined tower B4, and an arch beam 6 is fixedly installed between the lower parts of the inclined tower A3 and the inclined tower B4. A vertical connecting column 8 is fixedly installed between the arch beam 6 and the main crossbeam B7, which increases the connection performance between the inclined tower A3 and the inclined tower B4, interacts with the downward load of the deadweight of the two inclined towers, and forms a trapezoidal supporting structure with the main crossbeam A5 at the bottom, so that the structural stability performance is better than that of a single tower.

[0028] See also Figure 2 The inclined towers A3 and B4 are designed to be airfoil-shaped with both sides tilted outward. Generator sets are installed on the tops of the inclined towers A3 and B4. The scanning area between the inclined towers and the wind turbine blades is reduced, which greatly improves the wind energy capture efficiency. The wind speed rotation is enhanced between the double-tower wind turbine blades, which can effectively enhance the power generation efficiency of the wind turbine generator set.

[0029] See also Figure 1 A prestressed cable 9 is arranged between the tops of the inclined towers 3 and 4 to increase the connection between the two inclined towers, bear part of the load of the two inclined towers in the vertical direction, enhance the integrity between the structures, and increase the bearing capacity of the double-tower structure.

[0030] See also Figure 4 The main cross beam A5, the main cross beam B7, the arch beam 6 and the vertical connecting column 8 can be connected by assembly or by using the existing cast-in-place technology, so as to divide the overall structure into smaller unit modules for easy transportation and construction and installation.

[0031] The present invention also provides a construction method for the above-mentioned concrete airfoil double-tower wind power tower, comprising the following steps:

[0032] Step 1: First, fix the vertical tower A1 and the vertical tower B2 in parallel on the foundation 10, and then fix the main beam A5 between the tops of the vertical tower A1 and the vertical tower B2 to ensure that the vertical tower A1 and the vertical tower B2 are firmly connected;.

[0033] Step 2: The inclined tower A3 and the inclined tower B4 are fixedly installed on the top of the vertical tower A1 and the vertical tower B2 respectively, and the main crossbeam B7 is fixedly installed between the middle parts of the inclined tower A3 and the inclined tower B4, and the arch beam 6 is fixedly installed between the lower parts of the inclined tower A3 and the inclined tower B4, and the vertical connecting column 8 is fixedly installed between the arch beam 6 and the main crossbeam B7. The inclined tower A3 and the inclined tower B4 are fixedly connected together by the main crossbeam B7 and the arch beam 6 to share the downward load of the two inclined towers.

[0034] Step 3. Finally, the prestressed cable 9 is fixedly connected between the tops of the inclined tower A3 and the inclined tower B4 to increase the connection between the two inclined towers, bear part of the load of the two inclined towers in the vertical direction, enhance the integrity between the structures, and increase the bearing capacity of the double-tower structure.

[0035] In summary, the present invention simplifies the construction process, reduces the reliance on large-scale lifting equipment, and improves construction efficiency by decomposing the tower into multiple modules that are easy to transport and install. This modular design not only shortens the construction period, but also reduces the amount of on-site work and the impact on the environment, which is in line with the current green and sustainable development concept.

Claims

1. A concrete airfoil double-tower wind turbine tower, comprising a vertical tower A (1), a vertical tower B (2), an inclined tower A (3), an inclined tower B (4), a main beam A (5), a prestressed cable (9) and a foundation (10), characterized in that: The vertical tower A (1) and the vertical tower B (2) are fixedly installed in parallel on a foundation (10), and the inclined tower A (3) and the inclined tower B (4) are fixedly installed on the top of the vertical tower A (1) and the vertical tower B (2), respectively, and the inclined tower A (3) and the inclined tower B (4) are symmetrically arranged and tilted. A main crossbeam A (5) is fixedly installed between the tops of the vertical tower A (1) and the vertical tower B (2), and a prestressed cable (9) is fixedly connected between the tops of the inclined tower A (3) and the inclined tower B (4).

2. The concrete airfoil double-tower wind turbine tower according to claim 1, characterized in that: A main crossbeam B (7) is fixedly installed between the middle parts of the inclined tower A (3) and the inclined tower B (4).

3. The concrete airfoil double-tower wind turbine tower according to claim 2, characterized in that: An arch beam (6) is fixedly installed between the lower parts of the inclined tower A (3) and the inclined tower B (4), and a vertical connecting column (8) is fixedly installed between the arch beam (6) and the main cross beam B (7).

4. The concrete airfoil double-tower wind turbine tower according to claim 1, characterized in that: The lengths of the vertical tower A (1) and the vertical tower B (2) are the same, the lengths of the inclined tower A (3) and the inclined tower B (4) are the same, and the length of the inclined tower A (3) or the inclined tower B (4) is less than 1 / 2 of the length of the vertical tower A (1) or the vertical tower B (2).

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