An enhanced wind-concentrating wind power generation system

Abstract

The present invention discloses an enhanced wind-gathering wind power generation system, which belongs to the field of wind power generation technology and includes a wind guide tower, an enhanced wind-gathering component, and a wind turbine. The wind guide tower is provided with a plurality of wind guide slots in a circumferential direction; the enhanced wind-gathering component is connected to the wind guide tower, and the enhanced wind-gathering component corresponds one-to-one with the wind guide slots. The enhanced wind-gathering component includes a plurality of enhanced wind-gathering units arranged along the axial direction of the wind guide tower. The wind turbine is connected to the wind guide tower and is used to convert wind energy into electrical energy. Due to its enhanced wind-gathering capability, this system can produce more green electricity than "natural wind-gathering"; at the same time, since it does not require more than one year of wind measurement preparation, the practicality and flexibility of use of this system are greatly improved. It completely solves the limitation problem that other technologies can only be used in relatively high wind speed areas. It can be effectively used in a large number of low wind speed areas, thereby helping people in these areas to use green energy to develop the economy and improve living conditions, and is suitable for widespread promotion and use.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to an enhanced wind-concentrating wind power generation system. Background Art

[0002] Sunlight shines down on the atmosphere, heating it. Due to the Earth's rotation and revolution, the ground is heated unevenly, causing temperature differences and causing air movement. This horizontal movement of air forms wind. Because wind has a certain mass, speed, and temperature, it possesses energy.

[0003] Wind power generation is a method of generating electricity by utilizing the horizontal movement of wind and the fact that wind speed increases with altitude near the ground to effectively convert wind energy into electricity.

[0004] Currently, the dominant wind turbine system on the market is a high-tower, three-blade turbine. These turbines offer high efficiency and competitive power generation costs. However, their dependence on the weather prevents many parts of China from effectively utilizing low-speed wind resources or from utilizing wind resources at the end of the national grid to benefit remote rural areas.

[0005] Currently, both the mainstream three-blade wind turbines and other small wind turbines on the market primarily passively absorb wind energy to generate electricity. Therefore, the quality of wind resources (wind speed) determines that some areas have no economic value for development. This deprives these areas of the opportunity to effectively utilize wind energy for development and improve the living conditions of the local people.

[0006] To this end, an enhanced wind-concentrating wind power generation system was invented, which can effectively utilize local wind resources to generate electricity in low wind speed areas; it can also effectively utilize wind resources to generate electricity in the terminal areas of the national power grid, benefiting the people in these areas and contributing to our country's low-carbon sustainable development strategy. Summary of the Invention

[0007] In response to the above-mentioned defects, the technical problem solved by the present invention is to provide an enhanced wind-concentrating wind power generation system to solve the problems of existing technologies being greatly affected by the environment, having low environmental adaptability, and being unusable in low wind speed areas and at the end of the power grid.

[0008] The present invention provides an enhanced wind-concentrating wind power generation system, comprising:

[0009] The wind guide tower is provided with a number of wind guide slots in the circumferential direction;

[0010] An enhanced wind gathering component is connected to the wind guide tower and is arranged at the lower part of the wind guide trough. The enhanced wind gathering component corresponds to the wind guide trough one by one. The enhanced wind gathering component includes a plurality of enhanced wind gathering units arranged along the axial direction of the wind guide tower. Adjacent enhanced wind gathering units are connected to each other at their ends.

[0011] A wind turbine is connected to the wind guide tower and is used for converting wind energy transmitted by the wind guide tower into electrical energy.

[0012] Preferably, the enhanced wind gathering unit comprises:

[0013] an air gathering baffle connected to the air guide tower and disposed in the air guide trough, wherein a first air gathering port is formed between the air gathering baffle and the air guide tower;

[0014] An air gathering channel is integrally formed with the air gathering baffle, and an air gathering channel is formed between the air gathering channel and the air guide tower. The air gathering channel is simultaneously connected to the first air gathering port and the air guide groove, and the cross-sectional area of ​​the air gathering channel at one end close to the first air gathering port is larger than the cross-sectional area of ​​the other end.

[0015] Preferably, the wind guide tower comprises:

[0016] The tower body is connected to the enhanced wind gathering component, and three wind guide grooves are evenly arranged along the circumference of the tower body;

[0017] An air guide duct, one end of which is connected to the tower body and communicated with the enhanced wind gathering assembly, and the other end of which is communicated with the wind turbine. The air guide duct is provided with an air guide cavity communicated with the air guide slots. The air guide cavities correspond to the air guide slots one by one, and the three air guide cavities are named the first air guide cavity, the second air guide cavity, and the third air guide cavity respectively.

[0018] A support frame is connected to the tower body and is used to support the tower body.

[0019] Preferably, it also includes:

[0020] a first induced draft fan, connected to the first wind guide cavity and the wind turbine via a wind duct, for pressurizing the wind gathered in the first wind guide cavity and then conveying it to the wind turbine;

[0021] a second induced draft fan, connected to the second wind guide cavity and the wind turbine through a second wind duct, for pressurizing the wind gathered in the second wind guide cavity and then transporting it to the wind turbine;

[0022] The third induced draft fan is connected to the third wind guide cavity and the wind turbine through the wind duct, and is used for pressurizing the wind gathered in the third wind guide cavity and then transporting it to the wind turbine.

[0023] Preferably, the first induced draft fan, the second induced draft fan and the third induced draft fan are connected to the wind generator through air duct one, air duct two and air duct three respectively.

[0024] Preferably, the first induced draft fan, the second induced draft fan and the third induced draft fan are all electrically connected to the wind generator.

[0025] Preferably, the air guide groove is a columnar structure with a fan-shaped cross section; the cross section of the wind gathering baffle is an isosceles trapezoid or a fan ring.

[0026] Preferably, the tower body is a cylindrical structure; and the support frame includes three support rods arranged in a triangle.

[0027] As can be seen from the above scheme, the enhanced wind-collecting wind power generation system provided by the present invention is a small wind power generation system. Through the arrangement of the wind guide tower and the enhanced wind-collecting components, it can effectively collect wind with a certain speed (low wind speed) and then convert it into green electricity through the wind turbine. There can be three wind guide troughs, that is, three vertical wind-collecting channels. This division can maximize the collection and utilization of natural wind after the introduction of the induced draft fan. Specifically:

[0028] 1) When the main wind direction is facing one side (facade A) of the wind gathering tower (with wind guide ducts), the direct wind gathering effect of this side is the best. However, for the wind gathering tower, only one-third of the tower body (surface) plays a role, and the use value of the wind gathering tower is not fully utilized. Due to the effect of turbulence, a large amount of airflow will also rush into the two tower surfaces (B and C) on the side. Although the speed and pressure of these airflows are reduced, they are still wind energy with utilization value. Therefore, we need to effectively "gather" this part of wind energy and utilize it to maximize the investment value of the wind gathering tower. Therefore, we need the wind gathering ducts on these two sides to "extract"

[0029] To create a relative vacuum, the turbulent air is sucked into the corresponding air collection chamber, and then the sucked air is pressurized and pushed to the wind turbine to generate more electricity. Therefore, we set up an induced draft fan at the end of the air collection duct (B and C), which is responsible for pumping the air collection duct into a relative vacuum, so that the turbulent air can be sucked in, accelerated and pressurized, and then sent to the wind turbine to generate electricity. It is particularly worth mentioning that after the turbulent air is sucked into the air collection chamber, the surrounding atmosphere will

[0030] The air "rushes" to the wind-gathering cavity, waiting to be sucked into the cavity. This forms a valuable air flow that is continuously sucked into the cavity to generate electricity.

[0031] 2) When the main wind direction is perpendicular to the base (A) of the equilateral triangle formed by the tower's other two facades (B and C), the mainstream air flow cannot be fully delivered to the BC concentrating ducts. Some air will overflow onto the A side, where it will form turbulence. This turbulence creates a certain vacuum, causing the surrounding air to rush toward the A side. Therefore, for the same reason, we install an induced draft fan at the end of the A concentrating duct to draw the turbulent air and the incoming air into the A concentrating duct, effectively utilizing the function of this "idle" facade of the wind concentrating tower, increasing power generation and improving the wind concentrating tower's investment returns.

[0032] 3) Since there are induced draft fans at the end of the ABC air concentrating ducts, no matter what the angle between the mainstream wind direction and the three facades of the wind concentrating tower is, we can adjust the output of each induced draft fan to most effectively introduce the airflow "concentrated" on each facade into the air concentrating duct, so that the wind concentrating tower (three tower faces) can maximize its function and investment value. At the same time, the installation of induced draft fans can enhance the wind concentrating effect, thereby enabling the system to generate more green electricity and reduce the cost of electricity.

[0033] This improves investment returns and helps such systems be used in a wider area.

[0034] In summary, the wind-collecting tower in this system has a simple structure and a streamlined air duct, which reduces flow resistance and energy loss. The addition of the induced draft fan in particular significantly enhances wind (energy) collection, increasing both power generation and the cost per kilowatt-hour. This system incorporates a shared wind turbine, which reduces initial investment in power generation equipment and improves generator efficiency. This system offers significant commercial investment value, which will encourage its widespread adoption. It can help residents in low-wind-speed areas or those at the end of the national grid effectively utilize green electricity to improve their lives, while also enhancing the green development capabilities of these areas. This system has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] 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 these drawings without paying any creative work.

[0036] Figure 1 A schematic structural diagram of an enhanced wind-concentrating wind power generation system provided by the present invention;

[0037] Figure 2 This is a schematic diagram of the main structure of an enhanced wind-concentrating wind power generation system provided by the present invention;

[0038] Figure 3 For the Figure 2 Cross-sectional structural diagram along line AA;

[0039] Figure 4 For the Figure 2 Cross-sectional structural diagram of the middle DD line and wind flow direction diagram;

[0040] Figure 5 For the Figure 2 Cross-sectional structure diagram of the middle DD line and wind flow diagram under different wind directions;

[0041] Figure 6 For the Figure 2 Cross-sectional structural diagram along the CC line;

[0042] Figure 7 A schematic structural diagram of another enhanced wind-concentrating wind power generation system provided by the present invention;

[0043] Figure 8 A schematic diagram of the main structure of another enhanced wind-concentrating wind power generation system provided by the present invention;

[0044] Figure 9 For the Figure 8 Cross-sectional structural diagram along line BB;

[0045] Figure 10 This is a schematic structural diagram of another enhanced wind-concentrating wind power generation system provided by the present invention.

[0046] Figure 1-10 middle:

[0047] 1. Wind guide tower; 2. Reinforced wind gathering assembly; 3. Wind turbine; 4. First induced draft fan; 5. Air collecting duct; 6. Second induced draft fan; 7. Third induced draft fan; 11. Tower body; 12. Wind guide duct; 13. Support frame; 21. Reinforced wind gathering unit; 111. Wind guide trough; 121. Wind guide cavity; 131. Support rod; 211. Wind gathering baffle; 212. Wind gathering channel; 213. First wind gathering port; 214. Wind gathering duct. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0049] Please also refer to Figures 1 to 10A specific embodiment of an enhanced wind-collecting wind power generation system provided by the present invention is now described. The enhanced wind-collecting wind power generation system includes a wind guide tower 1, an enhanced wind-collecting assembly 2, and a wind turbine 3. The wind guide tower 1 is provided with a plurality of wind guide slots 111 along its circumference. The enhanced wind-collecting assembly 2 is connected to the wind guide tower 1 and disposed within the wind guide slots 111. The enhanced wind-collecting assembly 2 corresponds one-to-one with the wind guide slots 111. The enhanced wind-collecting assembly 2 includes a plurality of enhanced wind-collecting units 21 disposed along the axial direction of the wind guide tower 1. Adjacent enhanced wind-collecting units 21 are interconnected at their ends. The wind turbine 3 is connected to the wind guide tower 1 and is used to convert wind energy transmitted by the wind guide tower 1 into electrical energy.

[0050] For ease of explanation, see Figure 1 , establish a rectangular coordinate system with any point in space as the origin, the axial direction of the wind guide tower 1 as the Z axis, any direction perpendicular to the Z axis as the X axis, and a straight line direction perpendicular to both the X axis and the Z axis as the Y axis, where the XY plane is the horizontal plane, the direction indicated on the horizontal plane is the horizontal direction, and the direction indicated by the Z axis is the vertical direction.

[0051] Compared with the existing technology, this enhanced wind-gathering wind power generation system is a small-scale wind power generation system. Through the arrangement of the wind guide tower 1, the enhanced wind-gathering assembly 2 and the induced draft fan, it can effectively gather wind with a certain speed (low wind speed) and then convert it into green electricity through the wind turbine 3. There are three wind guide slots 111, which form three vertical wind-gathering channels. This division can gather natural wind to the maximum extent. Generally speaking, when the main wind direction is facing one of the sides of the wind guide tower 1 with the wind guide slots 111, the direct wind gathering effect is the best. At the same time, due to the effect of turbulence, a large amount of airflow will also rush into the two tower surfaces on the side and rear. Although the speed and pressure of this airflow are reduced, it is still valuable wind energy. By arranging respective induced draft fans at the end of each wind-gathering channel, the gathering of this type of wind energy can be strengthened, thereby increasing the power generation. In particular, this arrangement can set the output of the induced draft fan according to the different conditions of each wind-gathering channel, and can most effectively gather wind energy in the atmosphere.

[0052] As another embodiment of the present invention, the structure of this enhanced wind-concentrating wind power generation system is basically the same as that of the above-mentioned embodiment, except that the enhanced wind-concentrating unit 21 includes a wind-concentrating baffle 211 and a wind-concentrating channel 212. The wind-concentrating baffle 211 is connected to the wind guide tower 1 and is disposed in the wind guide trough 111. A first wind-concentrating port 213 is formed between the wind-concentrating baffle 211 and the wind guide tower 1. The wind-concentrating channel 212 is integrally formed with the wind-concentrating baffle 211. A wind-concentrating duct 214 is formed between the wind-concentrating duct 212 and the wind guide tower 1. The wind-concentrating duct 214 is connected to both the first wind-concentrating port 213 and the wind guide trough 111. The cross-sectional area of ​​the wind-concentrating duct 214 at one end near the first wind-concentrating port 213 is greater than the cross-sectional area at the other end. The wind-concentrating channel 212 of one enhanced wind-concentrating unit 21 extends into the first wind-concentrating port 213 of the next enhanced wind-concentrating unit 21, thereby connecting adjacent enhanced wind-concentrating units 21. Here, anything that can achieve the above-mentioned enhanced performance of the wind gathering unit 21 is within the scope of protection of this application document.

[0053] As another embodiment of the present invention, the structure of this enhanced wind-concentrating wind power generation system is substantially the same as that of the aforementioned embodiment, differing in that the device further includes an induced draft fan connected to both the wind guide tower 1 and the wind turbine 3. The induced draft fan is used to pressurize the wind gathered within the wind guide tower 1 and then transport it to the wind turbine 3. The induced draft fan is connected to the wind turbine 3 via a collecting duct 5 and is electrically connected to the wind turbine 3. While the installation of the induced draft fan increases the configuration and electricity costs of the induced draft fan, the electricity used is actually converted into kinetic energy by the induced draft fan impeller, which is then absorbed by the wind and converted back into kinetic energy. The loss is limited to the loss of conversion efficiency in each link, which is relatively small and acceptable compared to the corresponding increase in "natural" wind concentration. In other words, the installation and use of the induced draft fan can improve the efficiency of the wind-concentrating tower, save the cost of the wind turbine 3, increase power generation, and reduce the cost per kilowatt-hour, providing a more efficient method for the wider utilization of wind energy.

[0054] In this embodiment, the induced draft fans correspond one-to-one with the air guide slots 111; three, four, or five air guide slots 111 are evenly spaced along the circumference of the wind guide tower 1. Each induced draft fan can adjust its output based on the speed and pressure of the wind in the corresponding air guide slot 111 to achieve optimal wind gathering. The use of induced draft fans significantly increases the wind speed at the end of the air guide slot 111, effectively enhancing wind gathering. Because wind power is proportional to the cube of wind speed, this increase in wind speed can significantly reduce the size of the wind turbine 3, resulting in cost savings.

[0055] As another embodiment of the present invention, the structure of this enhanced wind-collecting wind power generation system is basically the same as the structure in the above-mentioned embodiment, the difference being that the wind guide tower 1 includes a tower body 11, an air guide duct 12, and a support frame 13, wherein the tower body 11 is connected to the enhanced wind-collecting component 2, and three air guide grooves 111 are evenly arranged along the circumference of the tower body 11; one end of the air guide duct 12 is connected to the tower body 11 and communicated with the enhanced wind-collecting component 2, and the other end is connected to the induced draft fan, and an air guide cavity 121 connected to the air guide groove 111 is provided on the air guide duct 12, and the air guide cavity 121 corresponds one-to-one to the air guide groove 111, and the three air guide cavities 121 are respectively named as the first air guide cavity, the second air guide cavity and the third air guide cavity; the support frame 13 is connected to the tower body 11 for supporting the tower body 11.

[0056] In this embodiment, the tower body 11 is a cylindrical structure. The wind guide trough 111 is a columnar structure with a fan-shaped cross section; the wind-collecting baffle 211 has an isosceles trapezoidal or fan-shaped cross section. This structure fully utilizes the function of the wind-collecting assembly 2, making the device a "universal" wind-collecting tower. This improves equipment utilization, increases power generation, and helps reduce the cost per kilowatt-hour, facilitating the widespread use of this low-speed wind power generation system.

[0057] As another embodiment of the present invention, the structure of this enhanced wind-concentrating wind power generation system is basically the same as the structure in the above-mentioned embodiment, except that there are three induced draft fans, which are respectively named as the first induced draft fan 4, the second induced draft fan 6 and the third induced draft fan 7, wherein the first induced draft fan 4 is connected to the first wind guide cavity and the wind turbine 3 at the same time, and is used to pressurize the wind gathered in the first wind guide cavity and transport it to the wind turbine 3; the second induced draft fan 6 is connected to the second wind guide cavity and the wind turbine 3 at the same time, and is used to pressurize the wind gathered in the second wind guide cavity and transport it to the wind turbine 3; the third induced draft fan 7 is connected to the third wind guide cavity and the wind turbine 3 at the same time, and is used to pressurize the wind gathered in the third wind guide cavity and transport it to the wind turbine 3.

[0058] The pressure of the turbulent wind entering the air duct 12 will become smaller, and the speed will also become smaller accordingly. Using an induced draft fan at the end of the air duct 12 can effectively increase the wind speed. Once the pressure in the air duct they enter is lower than their own pressure (forming a negative pressure), these winds will be sucked into the air duct, and an atmospheric "vacuum" area will be formed at the entrance of the air duct accordingly. The surrounding atmosphere will "flock in" to form an "artificial" airflow, which greatly increases the amount of air entering the air duct 12, and allows the device to gather more wind energy. In the air duct 12 where "natural wind" enters, it is still necessary to use an induced draft fan, firstly to overcome the flow resistance of the air duct 12; to maintain the speed and pressure of the air flow; secondly, to create a relative "vacuum", promote the rapid passage of air flow, and ensure that the wind at the entrance of the air duct 12 is not "blocked" outside, thereby improving the wind gathering effect, increasing the amount of wind energy gathered, and increasing power generation.

[0059] In this embodiment, the first induced draft fan 4, the second induced draft fan 6, and the third induced draft fan 7 are all connected to the wind turbine 3 via an air conduit 5. The air conduit 5 includes a main pipe and branch pipes connected to the main pipe. The branch pipes are provided with three branches and are respectively connected to the first induced draft fan 4, the second induced draft fan 6, and the third induced draft fan 7. The main pipe is connected to the wind turbine 3. The first induced draft fan 4, the second induced draft fan 6, and the third induced draft fan 7 are all electrically connected to the wind turbine 3.

[0060] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0061] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced. Contents not described in detail in the embodiments of the present invention belong to the prior art known to professional and technical personnel in this field.

[0062] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An enhanced wind-concentrating wind power generation system, characterized in that: include: An air guide tower (1) is provided with a plurality of air guide slots (111) in a circumferential direction; An enhanced wind gathering component (2) is connected to the wind guide tower (1) and is arranged at the lower part of the wind guide groove (111), the enhanced wind gathering component (2) corresponds to the wind guide groove (111) one by one, and the enhanced wind gathering component (2) includes a plurality of enhanced wind gathering units (21) arranged along the axial direction of the wind guide tower (1), and adjacent enhanced wind gathering units (21) are connected to each other at the ends; A wind turbine (3) is connected to the wind guide tower (1) and is used to convert wind energy transmitted by the wind guide tower (1) into electrical energy; The enhanced wind gathering unit (21) comprises: An air gathering baffle (211) is connected to the air guide tower (1) and is disposed in the air guide groove (111), with a first air gathering port (213) formed between the air gathering baffle (211) and the air guide tower (1); An air gathering channel (212) is integrally formed with the air gathering baffle (211), and an air gathering channel (214) is formed between the air gathering channel (212) and the air guide tower (1). The air gathering channel (214) is simultaneously connected to the first air gathering port (213) and the air guide groove (111), and the cross-sectional area of ​​the air gathering channel (214) at one end close to the first air gathering port (213) is larger than the cross-sectional area of ​​the other end; Also includes: An air collecting pipe (5), the air collecting pipe (5) comprising an air pipe 1, an air pipe 2 and an air pipe 3; An air guide duct (12), wherein the air guide duct (12) is provided with an air guide cavity (121) communicating with the air guide groove (111), the air guide cavity (121) corresponds one-to-one with the air guide groove (111), and the three air guide cavities (121) are respectively named a first air guide cavity, a second air guide cavity, and a third air guide cavity; a first induced draft fan (4), connected to the first wind guide cavity and the wind turbine (3) via an air duct, for pressurizing the wind gathered in the first wind guide cavity and then transporting it to the wind turbine (3); a second induced draft fan (6), which is connected to the second wind guide cavity and the wind turbine (3) via a second wind duct, and is used to pressurize the wind gathered in the second wind guide cavity and then transport it to the wind turbine (3); a third induced draft fan (7) which is in three-way communication with the third wind guide cavity and the wind turbine (3) via an air duct, and is used for pressurizing the wind gathered in the third wind guide cavity and then transporting it to the wind turbine (3); The cross section of the wind gathering baffle (211) is an isosceles trapezoid or a fan ring.

2. The enhanced wind-concentrating wind power generation system according to claim 1, characterized in that: The wind guide tower (1) comprises: A tower body (11) is connected to the enhanced wind gathering component (2), and three wind guide grooves (111) are evenly arranged along the circumference of the tower body (11); A support frame (13) is connected to the tower body (11) and is used to support the tower body (11).

3. The enhanced wind-concentrating wind power generation system according to claim 2, characterized in that: The first induced draft fan (4), the second induced draft fan (6) and the third induced draft fan (7) are all connected to the wind generator (3) through air duct one, air duct two and air duct three, respectively.

4. The enhanced wind-concentrating wind power generation system according to claim 3, characterized in that: The first induced draft fan (4), the second induced draft fan (6), and the third induced draft fan (7) are all electrically connected to the wind turbine (3).

5. The enhanced wind-concentrating wind power generation system according to claim 4, characterized in that: The tower body (11) is a cylindrical structure; the support frame (13) comprises three support rods (131) arranged in a triangular shape.

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