Inhaul cable type concrete three-tower type wind power tower structure suitable for cliff edge

Abstract

The invention relates to the related technical field of wind power towers, in particular to an inhaul cable type concrete three-tower type wind power tower structure suitable for cliff edges, which comprises a first stay cable, the other end of the first stay cable is assembled and connected with a first cantilever beam, and the surface of one side of the second cantilever beam is assembled and connected with a beam. A concrete tower is assembled and connected to one end of the first cantilever beam, and a first foundation is assembled and connected to the lower surface of the concrete tower. The inhaul cable type concrete three-tower type wind power tower structure suitable for the cliff edge is mainly suitable for the cliff terrain, the three wind power generator sets are installed on the three cantilever beams respectively instead of a traditional main body tower, the gravity center of the structure is lowered, the stability of the structure is enhanced, the three cantilever beams are connected through inhaul cables respectively, and therefore the structure is more stable. The concrete tower is connected to the other inhaul cable to be anchored to the ground, the lateral force resistance of the structure is enhanced, three wind driven generators can be installed on the three cantilever beams, the power generation efficiency is improved, and the problem that the structure of the wind power tower suitable for the complex terrains such as clifts is scarce is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field related to wind power towers, and in particular to a cable-type concrete three-tower wind power tower structure suitable for cliff edges. Background Art

[0002] As the global demand for renewable energy continues to grow, the development of wind power as a clean and renewable energy form has received widespread attention. However, during the construction of wind farms, the stability and safety of the tower structure are always important challenges that designers need to face, especially on complex terrains such as cliff edges. The design of wind turbine towers needs to be more sophisticated and careful.

[0003] Traditional wind turbine tower structures mostly adopt a single columnar structure. Although it can meet the basic load-bearing and stability requirements to a certain extent, its wind resistance and stability still need to be improved when facing extreme weather conditions and complex terrain. Especially on the edge of a cliff, due to the steep terrain and strong winds, traditional tower structures are often difficult to adapt to such extreme environments.

[0004] In order to overcome this technical difficulty, the present invention proposes a cable-type concrete three-tower wind turbine tower structure suitable for cliff edges. This structure combines the latest achievements of modern engineering technology and materials science, and significantly improves the wind resistance and stability of the tower by introducing a cable system and a triangular support structure. Summary of the invention

[0005] The purpose of the present invention is to provide a cable-type concrete three-tower wind power tower structure suitable for cliff edges in order to solve the above-mentioned problems and overcome the defects of the prior art, as described in detail below.

[0006] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a cable-stayed concrete three-tower wind power tower structure suitable for cliff edges, comprising a first inclined cable, one end of which is connected to a second inclined cable, one end of which is connected to a third inclined cable, the other end of which is assembled and connected to a first cantilever beam, one end of the second inclined cable is assembled and connected to a second cantilever beam, one side surface of the second cantilever beam is assembled and connected to a beam, one end of the first cantilever beam is assembled and connected to a concrete tower, the lower surface of the concrete tower is assembled and connected to a first foundation, the lower surface of the second cantilever beam is assembled and connected to a second foundation, and one end of the third inclined cable is assembled and connected to the third foundation.

[0007] Preferably, the first inclined cable, the second inclined cable and the third inclined cable are all fixed on the surface of the concrete tower, and the other end of the first inclined cable is assembled and connected to the beam.

[0008] Preferably, the second oblique-stayed cable is symmetrically arranged with respect to the central axis of the third oblique-stayed cable, and the second oblique-stayed cable is perpendicular to the third oblique-stayed cable.

[0009] Preferably, the second cantilever beam is symmetrically arranged with respect to the center axis of the beam, and wind turbines are connected to the surfaces of the first cantilever beam and the second cantilever beam.

[0010] Preferably, one end of the first cantilever beam is assembled and connected to the first foundation, and the first cantilever beam and the second cantilever beam are both assembled and connected to the surface of the beam.

[0011] Preferably, the second foundation is provided in two groups, and the first foundation and the third foundation are perpendicular to the beam.

[0012] Preferably, the connection point between the first cantilever beam and the first foundation and the connection point between the second cantilever beam and the second foundation are located on the same straight line perpendicular to the beam, and the central axis of the concrete tower coincides with the central axis of the beam on the horizontal projection plane.

[0013] The beneficial effects are: Through the above-mentioned structure, the three cantilever beams are connected by cables respectively, and the third inclined cable is connected through the concrete tower to enhance the bearing capacity and stability of the structure. Since the various components are assembled and connected, the structural force can be dispersed, the load borne by the concrete tower can be reduced, the structural stability can be increased, and the service life can be extended. The wind turbine generator set is installed on the three cantilever beams respectively. The three cantilever beams are connected by beams and then connected and anchored by three inclined cables to form a stable structure. This design not only enhances the overall stability of the tower, but also effectively disperses the wind force and reduces the impact of wind pressure on the tower. At the same time, the foundation at the bottom of each cantilever beam is fixed to the ground, which further enhances the practicality and functionality of the tower. Through reasonable material ratio and construction technology, the bearing capacity and service life of the tower can be further improved. The introduction of the cable system enhances the overall stability of the tower, which not only solves the problem of insufficient stability of traditional towers on complex terrain, but also the special effect of the terrain may form a higher wind speed, which is conducive to the operation of wind turbines and improves the power generation efficiency and safety of wind farms. This innovative design will bring new breakthroughs and opportunities for the development of the wind power industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 these drawings without paying creative work.

[0015] Figure 1It is a schematic diagram of the three-dimensional appearance structure of the present invention; Figure 2 It is a schematic diagram of the facade structure of the present invention; Figure 3 It is a schematic diagram of the side structure of the present invention; Figure 4 It is a schematic diagram of the top view structure of the present invention.

[0016] In the figure: 1. first inclined cable; 2. second inclined cable; 3. third inclined cable; 4. first cantilever beam; 5. second cantilever beam; 6. beam; 7. concrete tower; 8. first foundation; 9. second foundation; 10. third foundation. DETAILED DESCRIPTION

[0017] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. Example

[0018] See also Figure 1-4A cable-type concrete three-tower wind turbine tower structure suitable for cliff edges comprises a first inclined cable 1, one end of the first inclined cable 1 is connected to a second inclined cable 2, one end of the first inclined cable 1 is connected to a third inclined cable 3, the other end of the first inclined cable 1 is assembled and connected to a first cantilever beam 4, one end of the second inclined cable 2 is assembled and connected to a second cantilever beam 5, one side surface of the second cantilever beam 5 is assembled and connected to a beam 6, one end of the first cantilever beam 4 is assembled and connected to a concrete tower 7, the lower surface of the concrete tower 7 is assembled and connected to a first foundation 8, the lower surface of the second cantilever beam 5 is assembled and connected to a second foundation 9, and one end of the third inclined cable 3 is assembled and connected to a third foundation 10. By arranging the first inclined cable 1, the second inclined cable 2, the third inclined cable 3, the first cantilever beam 4, the second cantilever beam 5, the beam 6, the concrete tower 7, the first foundation 8, the second foundation 9 and the third foundation 10, when in use, the concrete tower 7, the first cantilever beam 4, the second cantilever beam 5 and the beam 6 are produced in a prefabricated factory, and ... After the degree meets the requirements, it is transported to the site for installation. The three cantilever beams are respectively connected by cables, and the third inclined cable 3 is connected through the concrete tower 7 to enhance the bearing capacity and stability of the structure. Since the various components are assembled and connected, the structural force can be dispersed, the load borne by the concrete tower 7 can be reduced, the structural stability can be increased, and the service life can be extended. The wind turbine generator set is installed on the three cantilever beams respectively. The three cantilever beams are connected by beams 6 and then connected and anchored by three inclined cables to form a stable structure. This design not only enhances the overall stability of the tower, but also effectively disperses wind force and reduces the impact of wind pressure on the tower. At the same time, the foundation at the bottom of each cantilever beam is fixed to the ground, which further enhances the practicality and functionality of the tower. At present, the application of concrete structure is mature, low cost, high strength, good durability and the like. Through reasonable material ratio and construction technology, the bearing capacity and service life of the tower can be further improved. The introduction of the cable system further enhances the overall stability of the tower.

[0019] Furthermore, the first inclined cable 1, the second inclined cable 2 and the third inclined cable 3 are all fixed on the surface of the concrete tower 7, and the other end of the first inclined cable 1 is assembled and connected with the beam 6. Through the setting of the first inclined cable 1, when in use, one end of the first inclined cable 1 is connected to the first cantilever beam 4, and the other end is assembled and connected with the beam 6 and fixed on the surface of the concrete tower 7. When the wind turbine generates wind load during operation, the first cantilever beam 4 is subjected to the force of the wind to generate bending moment and shear force. Due to the existence of the first inclined cable 1, when the first cantilever beam 4 has a tendency to rotate outward around the connection point with the concrete tower 7, the first inclined cable 1 will be subjected to tension, and this tension can be decomposed into horizontal And the vertical component, the vertical component is balanced with part of the vertical load on the first cantilever beam 4, reducing the vertical pressure at the connection between the root of the first cantilever beam 4 and the concrete tower 7; the horizontal component is opposite to the horizontal force generated by the wind load, generating a moment to resist overturning, thereby reducing the bending moment at the root of the first cantilever beam 4, making the force on the first cantilever beam 4 and the concrete tower 7 more reasonable, and improving the stability of the structure under the action of wind load. At the same time, the connection between the first inclined cable 1 and the beam 6 also helps to transfer part of the load on the first cantilever beam 4 to other parts such as the second cantilever beam 5 through the beam 6, further dispersing the load.

[0020] Furthermore, the second inclined cable 2 is symmetrically arranged with respect to the central axis of the third inclined cable 3, and the second inclined cable 2 is perpendicular to the third inclined cable 3. Through the arrangement of the second inclined cable 2 and the third inclined cable 3, when in use, when the wind blows toward the side to which the second cantilever beam 5 is connected with the second inclined cable 2, the second cantilever beam 5 on this side is subjected to the action of the wind load and produces a lateral displacement tendency. At this time, the second inclined cable 2 on this side is pulled, and the component of its pulling force in the horizontal direction will resist the lateral force generated by the wind load, thereby preventing the second cantilever beam 5 from excessive lateral displacement. Due to the symmetrical arrangement, the second cantilever beam 5 can also be prevented from excessive lateral displacement. The second inclined cable 2 on one side will generate a tension component of similar magnitude but opposite direction. The two symmetrical tension components partially offset each other in the horizontal direction, reducing the horizontal displacement of the entire structure caused by wind load and enhancing the lateral stability of the structure. One end of the third inclined cable 3 is connected to the third foundation 10. Its connection with the concrete tower 7 and the synergy with the second inclined cable 2 further enhance the ability of the structure to resist wind loads in different directions, effectively transmit the force generated by the wind load to the ground foundation, and ensure the overall stability of the structure.

[0021] Furthermore, the second cantilever beam 5 is symmetrically arranged with respect to the central axis of the beam 6, and the surfaces of the first cantilever beam 4 and the second cantilever beam 5 are connected to wind turbines. Through the arrangement of the wind turbine, when in use, the reasonable blade shape and layout between the three wind turbine blades can make the airflow produce uniform wind pressure distribution on the blades, thereby improving the efficiency and stability of the wind turbine.

[0022] Furthermore, one end of the first cantilever beam 4 is assembled and connected to the first foundation 8, and the first cantilever beam 4 and the second cantilever beam 5 are both assembled and connected to the surface of the beam 6. Through the arrangement of the first cantilever beam 4 and the second cantilever beam 5, when in use, the second cantilever beam 5 is symmetrically arranged with the central axis of the beam 6 and assembled and connected to the beam 6, and the first cantilever beam 4 is also assembled and connected to the beam 6. When wind force acts on the first cantilever beam 4 and the second cantilever beam 5, the beam 6 plays a role of connection and force transmission, and part of the load on the first cantilever beam 4 is transmitted to the second cantilever beam through the beam 6. Beam 5, and the load on the second cantilever beam 5 will also affect the stress state of the first cantilever beam 4 through beam 6. This connection method enables the two cantilever beams to work together to resist wind loads. When the cantilever beam on one side is subjected to a large wind load, beam 6 can transfer part of the load to the cantilever beam on the other side, so that the stress on the cantilever beams on both sides is more uniform and avoids excessive local stress. Moreover, beam 6 itself will also bear certain bending and shear forces. Its reasonable arrangement and connection ensure the integrity and stability of the structure under complex stress conditions.

[0023] Furthermore, two groups of second foundations 9 are provided, and the first foundation 8 and the third foundation 10 are perpendicular to the beam 6. Through the provision of the first foundation 8, the second foundation 9 and the third foundation 10, when in use, the structure can be subjected to vertical loads and the load can be transferred to each foundation more evenly. The first foundation 8 mainly bears the vertical and horizontal loads transmitted from the first cantilever beam 4, and transfers the load to the deep ground through the interaction between the first foundation 8 and the foundation, thereby ensuring the stable support of the first cantilever beam 4. The two groups of second foundations 9 are symmetrically arranged, jointly bearing the load transmitted from the second cantilever beam 5, thereby improving the vertical and horizontal stability of the second cantilever beam 5. The third foundation 10 anchors the third inclined cable 3. When the cable system is pulled, the third foundation 10 transfers the tension of the cable to the foundation, thereby preventing the structure from being displaced or becoming unstable due to the tension of the cable, thereby ensuring the safety and stability of the entire cable-type concrete wind power tower structure under various load combinations.

[0024] Furthermore, the connection point between the first cantilever beam 4 and the first foundation 8 and the connection point between the second cantilever beam 5 and the second foundation 9 are located on the same straight line perpendicular to the beam 6, and the central axis of the concrete tower 7 coincides with the central axis of the beam 6 on the horizontal projection plane. Through the above structure, when in use, the first inclined cable 1, the second inclined cable 2, the third inclined cable 3 and the concrete tower 7 can form a triangle, and the triangle has stability, which can make the structure safer and more stable.

[0025] Working principle: the concrete tower 7, the first cantilever beam 4, the second cantilever beam 5 and the beam 6 are produced in a prefabricated factory and transported to the site for installation after the strength meets the requirements. The three cantilever beams are connected by cables respectively, and the third inclined cable 3 is connected through the concrete tower 7 to enhance the bearing capacity and stability of the structure. Since the various components are assembled and connected, the structural force can be dispersed, the load borne by the concrete tower 7 can be reduced, the structural stability can be increased, and the service life can be extended. The wind turbine generator set is installed on the three cantilever beams respectively. The reasonable blade shape and layout between the three wind turbine blades can make the airflow produce a uniform wind pressure distribution on the blades, thereby improving the efficiency and stability of the wind turbine. The three cantilever beams are connected by the beam 6, and then connected and anchored by three inclined cables to form a stable structure. This design not only enhances the overall stability of the tower, but also effectively disperses wind force and reduces the impact of wind pressure on the tower. At the same time, the foundation at the bottom of each cantilever beam is solid to the ground. The practicability and functionality of the tower are further enhanced. At present, the concrete structure is mature in application, low in cost, and has the characteristics of high strength and good durability. Through reasonable material ratio and construction technology, the bearing capacity and service life of the tower can be further improved. The introduction of the cable system has enhanced the overall stability of the tower. One end of the first inclined cable 1 is connected to the first cantilever beam 4, and the other end is assembled and connected with the beam 6 and fixed on the surface of the concrete tower 7. When the wind turbine generates wind load during operation, the first cantilever beam 4 is subjected to the force of the wind to generate bending moment and shear force. Due to the existence of the first inclined cable 1, when the first cantilever beam 4 has a tendency to rotate outward around the connection point with the concrete tower 7, the first inclined cable 1 will be subjected to tension. This tension can be decomposed into horizontal and vertical components. The vertical component is balanced with part of the vertical load on the first cantilever beam 4, which reduces the vertical pressure at the connection between the root of the first cantilever beam 4 and the concrete tower 7.The horizontal component force is opposite to the horizontal force generated by the wind load, generating a moment to resist overturning, thereby reducing the bending moment at the root of the first cantilever beam 4, making the force on the first cantilever beam 4 and the concrete tower 7 more reasonable, and improving the stability of the structure under the action of wind load. At the same time, the connection between the first inclined cable 1 and the beam 6 also helps to transfer part of the load on the first cantilever beam 4 to other parts such as the second cantilever beam 5 through the beam 6, further dispersing the load. When the wind blows to the side of the second cantilever beam 5 connected to the second inclined cable 2, the second cantilever beam 5 on this side is subjected to the action of the wind load and produces a lateral displacement trend. At this time, the second inclined cable 2 on this side is pulled, and the horizontal component of its tension will resist the lateral force generated by the wind load. To prevent the second cantilever beam 5 from excessive lateral displacement, due to the symmetrical arrangement, the second inclined cable 2 on the other side will generate a tension component of similar size but opposite direction. The two symmetrical tension components offset each other in the horizontal direction, reducing the horizontal displacement of the entire structure caused by wind load and enhancing the lateral stability of the structure. One end of the third inclined cable 3 is connected to the third foundation 10, and its connection with the concrete tower 7 and the synergy with the second inclined cable 2 further enhance the ability of the structure to resist wind loads in different directions, effectively transfer the force generated by the wind load to the ground foundation, and ensure the overall stability of the structure. The second cantilever beam 5 is symmetrically arranged with the central axis of the beam 6 and is assembled with the beam 6. The first cantilever beam 4 is also assembled with the beam 6 assembled connection, when wind force acts on the first cantilever beam 4 and the second cantilever beam 5, beam 6 plays the role of connection and force transmission, part of the load on the first cantilever beam 4 is transmitted to the second cantilever beam 5 through beam 6, and at the same time, the load on the second cantilever beam 5 will also affect the stress state of the first cantilever beam 4 through beam 6. This connection method enables the two cantilever beams to work together to resist the wind load together. When the cantilever beam on one side is subjected to a large wind load, beam 6 can transfer part of the load to the cantilever beam on the other side, so that the force on the cantilever beams on both sides is more uniform and avoids excessive local force. Moreover, beam 6 itself will also bear certain bending and shear forces. Its reasonable arrangement and connection ensure the integrity and stability of the structure under complex force conditions. The first foundation 8 mainly bears the vertical and horizontal loads from the first cantilever beam 4, and transmits the load to the deep ground through the interaction between the first foundation and the ground, ensuring the stable support of the first cantilever beam 4. The two groups of second foundations 9 are symmetrically arranged to jointly bear the load from the second cantilever beam 5, improving the vertical and horizontal stability of the second cantilever beam 5. The third foundation 10 anchors the third inclined cable 3. When the cable system is pulled, the third foundation 10 transmits the tension of the cable to the foundation, preventing the structure from displacement or instability due to the tension of the cable, and ensuring the safety and stability of the entire cable-type concrete wind power tower structure under various load combinations.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable-stayed concrete three-tower wind turbine tower structure suitable for use on a cliff, comprising a first inclined cable (1), characterized in that: One end of the first inclined cable (1) is connected to the second inclined cable (2), one end of the first inclined cable (1) is connected to the third inclined cable (3), the other end of the first inclined cable (1) is assembled and connected to the first cantilever beam (4), one end of the second inclined cable (2) is assembled and connected to the second cantilever beam (5), one side surface of the second cantilever beam (5) is assembled and connected to a beam (6), one end of the first cantilever beam (4) is assembled and connected to a concrete tower (7), the lower surface of the concrete tower (7) is assembled and connected to a first foundation (8), the lower surface of the second cantilever beam (5) is assembled and connected to a second foundation (9), and one end of the third inclined cable (3) is assembled and connected to a third foundation (10).

2. The cable-type concrete three-tower wind power tower structure suitable for cliff edge according to claim 1, characterized in that: The first inclined cable (1), the second inclined cable (2) and the third inclined cable (3) are all fixed on the surface of the concrete tower (7), and the other end of the first inclined cable (1) is assembled and connected to the beam (6).

3. The cable-type concrete three-tower wind power tower structure suitable for cliff edge according to claim 1, characterized in that: The second inclined cable (2) is symmetrically arranged with respect to the central axis of the third inclined cable (3), and the second inclined cable (2) is perpendicular to the third inclined cable (3).

4. The cable-type concrete three-tower wind power tower structure suitable for cliff edge according to claim 1, characterized in that: The second cantilever beam (5) is symmetrically arranged with respect to the central axis of the beam (6), and wind turbines are connected to the surfaces of the first cantilever beam (4) and the second cantilever beam (5).

5. The cable-type concrete three-tower wind power tower structure suitable for cliff edge according to claim 1, characterized in that: One end of the first cantilever beam (4) is assembled and connected to the first foundation (8), and the first cantilever beam (4) and the second cantilever beam (5) are both assembled and connected to the surface of the beam (6).

6. The cable-type concrete three-tower wind power tower structure suitable for cliff edge according to claim 1, characterized in that: The second foundation (9) is provided in two groups, and the first foundation (8) and the third foundation (10) are perpendicular to the beam (6).

7. The cable-type concrete three-tower wind power tower structure suitable for cliff edge according to claim 1, characterized in that: The connection point between the first cantilever beam (4) and the first foundation (8) and the connection point between the second cantilever beam (5) and the second foundation (9) are located on the same straight line perpendicular to the beam (6), and the central axis of the concrete tower (7) coincides with the central axis of the beam (6) on a horizontal projection plane.

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