Airflow disturbing device and wind power tower drum provided with airflow disturbing device

Abstract

The invention discloses an airflow turbulence device and a wind power tower drum provided with the airflow turbulence device, the airflow turbulence device comprises a plurality of turbulence units which can be connected with one another, and each turbulence unit comprises a turbulence body which is internally provided with a cavity and is made of a high polymer material; the spoiler body comprises a spoiler wall and a connecting cavity, the spoiler wall is connected in a rewinding mode in the direction perpendicular to the connecting direction, the connecting cavity is surrounded by the spoiler wall, a strip-shaped attachment body penetrating through the connecting cavity in the connecting direction is arranged in the connecting cavity, and the two ends of the strip-shaped attachment body protrude out of the connecting cavity of the spoiler body. The turbulator made of the high polymer material is designed to be of the structure with the connecting cavity in the middle, the strip-shaped attachment is arranged in the connecting cavity, by means of the strip-shaped attachment, the deformation degree of the turbulator in the installation process or the using process can be reduced, the turbulator is attached to the outer surface of the tower all the time, and the turbulator is not prone to falling off. Therefore, the turbulent flow device is light in weight and good in turbulent flow effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of fluid dynamics, and particularly relates to a device for influencing gas flow, in particular to an air flow turbulence device for achieving a more stable turbulence effect by improving the device structure and a wind power tower barrel installed with the air flow turbulence device. Background Art

[0002] Vortex-induced vibration of a wind power tower barrel is a wind-induced vibration phenomenon that occurs in a long-span tower barrel at low wind speeds. From the perspective of fluid, for any non-streamlined object, at a certain constant flow velocity, vortices that detach from the surface of the structure will alternately generate on both sides of the object. If the natural vibration frequency of the tower barrel is close to the shedding frequency of the vortices, it will cause resonance damage to the tower barrel. Therefore, this kind of vortex-induced vibration is extremely harmful, and the high cost of wind power equipment makes it unable to withstand such a type of damage once.

[0003] In order to maximize the avoidance of damage to the wind power tower barrel caused by vortex-induced vibration, during the transportation and hoisting of the tower barrel, a turbulence device is installed on the tower barrel to disrupt the air flow trajectory so that it cannot form vortices with a stable frequency, thereby avoiding destructive vortex-induced vibration caused by matching the natural frequency of the tower barrel itself.

[0004] Existing turbulence devices usually adopt a plurality of turbulence strips, which are connected by connecting ropes at the ends of the turbulence strips to form a structure spirally wound around the outer surface of the tower barrel. The turbulence strips mostly adopt a triangular prism structure formed by foam materials. However, such turbulence strips are prone to deformation, such as twisting, under the action of the tensile force of the connecting ropes, thereby deteriorating the turbulence effect.

[0005] A turbulence device for a wind power tower barrel disclosed in CN219827362U includes a plurality of turbulence strips, and the plurality of turbulence strips are spirally wound around the outer wall of the tower barrel along the height direction of the tower barrel. The main body of the plurality of turbulence strips is an inflated structure formed by windproof cloth or rubber. In this turbulence device, although windproof cloth or rubber is used to form the turbulence strips, and the problem of deformation of the turbulence strips can be solved to a certain extent through the replacement of materials, the effect is also limited. Under the action of a strong air flow, the adhesion effect between the turbulence strips and the outer wall of the tower barrel is poor. Moreover, using windproof cloth or rubber materials significantly increases the weight, making installation, transportation, and hoisting more time-consuming and laborious. Summary of the Invention

[0006] The present invention provides an air flow turbulence device to solve the problems that the existing turbulence device is prone to deformation during installation and has poor adhesion effect during use. The turbulence body of the present invention can ensure a lighter mass while being not easily deformed in the installed state and having a better turbulence effect.

[0007] The present invention adopts the following technical solution: An air flow spoiler device, comprising a plurality of spoiler units that can be connected to each other. Each spoiler unit includes a spoiler body formed of a polymer material with a cavity inside. The spoiler body includes a spoiler wall that is wound and connected in a direction perpendicular to the connection direction and a connection cavity surrounded by the spoiler wall. A strip-shaped attachment body that passes through the connection cavity along the connection direction is arranged in the connection cavity, and both ends of the strip-shaped attachment body protrude from the connection cavity of the spoiler body. At least one end of the strip-shaped attachment body is provided with a snap structure for mutual connection. Anti-detachment end portions for restricting the strip-shaped attachment body from detaching from the spoiler body are arranged at both ends of the spoiler body.

[0008] As described in the background art, the existing spoiler strips are made of lightweight foam materials. Although it is beneficial for the installation, transportation of the spoiler strips and the hoisting of the tower barrel, after installation, multiple sections of spoiler strips are connected to each other and wound around the outer wall of the wind power tower barrel. It is necessary to maintain a roughly spiral shape and ensure that the spoiler strips are as attached to the outer wall of the tower barrel as possible. Then, the ropes at both ends of the spoiler strips need to be stretched tightly enough. In this way, the spoiler strips made of lightweight foam materials will be deformed under the tensile force of the ropes at both ends, for example, becoming longer and thinner, and unable to maintain the shape set by the spoiler strips themselves, resulting in a greatly deteriorated spoiler effect. Moreover, during the installation process of the spoiler strips, the spoiler strips are prone to entanglement with each other, which will also cause a change in the outer contour of the spoiler body and unable to maintain the shape set by the spoiler strips themselves, resulting in a deteriorated spoiler effect. Additionally, due to the light weight of the foam material and the relatively long length of the spoiler strips, usually several meters or even more than ten meters, this deformation phenomenon will be particularly prominent.

[0009] Therefore, the present invention aims to provide an air flow spoiler device that is first ensured to be light enough, and further, on the basis of being light, it is not easily deformed to ensure a good spoiler effect, so as to solve a series of problems caused by easy deformation during the installation process as mentioned above.

[0010] In the above technical solution of the present invention, the structure of the spoiler strip is improved. The spoiler body is designed to have a connection cavity in the middle, and a strip-shaped attachment body is arranged in the connection cavity. The strip-shaped attachment body can not only play a role in connecting adjacent spoiler units, but also when pulled along the connection direction, the force is applied to the strip-shaped attachment body, and the direct tensile force on the spoiler strip is relatively small. In this way, with the help of the strip-shaped attachment body, the deformation of the spoiler body during the installation process or use process can be prevented. And during the use process, the strip-shaped attachment body can make the spoiler body always attached to the outer surface of the tower barrel, playing a better spoiler role. The strip-shaped attachment body itself acts on the inner wall of the spoiler body, so it will not cause the spoiler body to deform. Since the direct tensile force on the spoiler strip becomes smaller, this structure can also extend the service life of the spoiler body.

[0011] On the other hand, for existing spoilers, since the connection between adjacent spoilers is achieved through the connection structures at both ends of the spoilers, that is, the entire spoiler is fixed at the end, the spoiler is not firmly fixed, and a large gap is likely to be generated between the spoiler and the tower barrel wall, especially when the external air flow is large. When the air flow passes through the gap position, new vortex structures will be generated, such as horseshoe vortices or gap vortices, and thus new vortex-induced vibrations will be formed. However, in the spoiler structure of this solution, the strip-shaped attachment passes through the inside of the spoiler. Under the pressing action of the strip-shaped attachment, the spoiler body closely adheres to the outer wall of the tower, reducing or even avoiding the gap between the spoiler body and the tower barrel wall, and reducing the generation of new vortex-induced vibrations.

[0012] The cavity mentioned in the above solution can provide a supporting force inside to support the spoiler body to form a certain shape and provide a flow disturbance path. The cavity can be a hollow cavity surrounded by an outer wall, filled with gas inside, having a certain air pressure to achieve the supporting effect. The cavity can also be the fine gaps formed by foaming materials.

[0013] The cavity of the spoiler body can be an independent unit with no barrier inside, or can be composed of several mutually independent cavity units. The latter is preferred, so as to prevent the entire spoiler body from leaking air and being unable to play the role of flow disturbance after a single cavity unit is punctured and ruptured.

[0014] Preferably, the cavity of the spoiler body includes several mutually independent cavity units and unit intervals located between adjacent cavity units, which connect and separate adjacent cavity units. In this solution, the unit intervals are provided to force the air flow to re-separate in the small areas composed of multiple cavity units and unit intervals, reduce the energy of large-scale vortices, weaken the periodic vortex shedding, and thus suppress the vortex-induced vibrations.

[0015] Preferably, there is a height difference between the surface of the cavity unit and the surface of the unit interval.

[0016] After the spoiler body is installed, a gap will inevitably be formed between it and the tower barrel wall, generating new vortex-induced vibrations. Although the strip-shaped attachment in the present invention will reduce the gap to a certain extent and avoid the generation of new vortex-induced vibrations, it still cannot be completely avoided, especially in the case of strong air flow weather. In this solution, by virtue of the height difference between the cavity unit and the unit interval, when the air flow passes through the surface of the spoiler body, the air flow direction is staggered, which is more conducive to disturbing the air flow. Cooperating with the strip-shaped attachment, the generation of vortex-induced vibrations can be more efficiently avoided. Here, the height difference is under the maximum support volume of the cavity unit.

[0017] Preferably, the height difference is not greater than 1 / 3 of the maximum height of the cavity unit.

[0018] Preferably, the width of the unit interval should not be too large or too small. If it is too small, although adjacent cavity units can be separated, the effect of disturbing the air flow direction is not good due to the small interval. If it is too large, the interval at the position of the cavity unit will become smaller, so that the air flow direction cannot be better staggered. It is more appropriate to design the width of the unit interval based on the width of a single cavity unit. Generally, the width of the unit interval is 1 / 4 to 1 / 2 of the width of a single cavity unit.

[0019] Preferably, the diameter of the strip-shaped attachment is approximately equal to or slightly larger than the width of the unit interval, so that when installed, the strip-shaped attachment can be just restricted within the unit interval. In this way, the strip-shaped attachment will not move randomly in the connecting cavity, so as to more stably position the fluid disturbing body. Moreover, restricting the strip-shaped attachment within the unit interval can also prevent the random movement of the strip-shaped attachment from rubbing against the inner wall of the fluid disturbing body.

[0020] Preferably, the fluid disturbing device further includes a stabilizing structure formed by a polymer foam material, and the stabilizing structure is attached to the outer surface of the fluid disturbing body.

[0021] The fluid disturbing unit adopts a two-layer structure. One layer is the inner fluid disturbing body, which has an inner cavity for inflating and deflating. Before being put into use, during transportation and other stages, it is in the non-inflated stage, and its volume can be compressed to the minimum at this time, which is convenient for transportation, handling and storage. When in use, with the help of an air pump, air is inflated into the inner cavity, so that the fluid disturbing body expands to form a structure with a stable outer contour, that is, the fluid disturbing effect of the fluid disturbing body can be realized. The other layer is the outer stabilizing structure, which is compounded on the outer surface of the fluid disturbing body. It can not only play a good protective role for the inner inflatable structure, but also, importantly, cooperate with the strip-shaped attachment to further prevent the deformation of the fluid disturbing body, play a stabilizing role for the whole fluid disturbing unit, and make the fluid disturbing effect of the fluid disturbing unit more stable.

[0022] Preferably, the stabilizing structure is formed by a polymer foam, and the polymer foam is preferably a polyolefin foam, such as IXPE, XPE or EPE, which has better high and low temperature resistance, weather resistance and ultraviolet resistance compared with the currently widely used fluid disturbing strips made of pearl cotton, and can better adapt to the harsh outdoor environment of the installation of wind power tower barrels.

[0023] Preferably, the anti-detachment end extends from the end of the fluid disturbing body to the distal end and forms a tightening opening at the distal end, and the end of the strip-shaped attachment passes through the tightening opening.

[0024] Preferably, the buckle structure includes a buckle seat connected to the end of the strip-shaped attachment and a buckle ring rotatably connected to the buckle seat.

[0025] In this preferred solution, the snap ring of the snap structure is set to be movable, which can avoid the rotation of the adjacent spoiler being driven by the rotation of the spoiler, thus preventing the winding that has a negative impact on the spoiler effect.

[0026] Preferably, the cross-section of the spoiler is circular, semi-circular, triangular, etc., preferably triangular, especially equilateral triangular.

[0027] Preferably, the spoiler is formed of a polyolefin film.

[0028] Preferably, the thickness of the stabilizing structure is 1 mm to 10 mm.

[0029] In the second aspect of the present invention, there is provided a wind power tower barrel, including the airflow spoiler device as described above spirally wound on the outer wall of the tower barrel along the height direction of the tower barrel.

[0030] Preferably, a plurality of the spoiler strip units are arranged at equal intervals.

[0031] By implementing the above technical solutions, compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the spoiler made of a polymer material is designed to have a structure with a connecting cavity in the middle, and a strip-shaped attachment body is arranged in the connecting cavity. With the help of this strip-shaped attachment body, the deformation degree of the spoiler during installation or use can be reduced, and during use, the strip-shaped attachment body can keep the spoiler always attached to the outer surface of the tower barrel, playing a better spoiler role, so as to realize a spoiler device with light weight and good spoiler effect.

[0032] 2. In the preferred solution of the present invention, a stabilizing structure is added to the outer surface of the spoiler, which can not only protect the spoiler, but also further prevent the spoiler from deforming, so as to achieve a better and more stable spoiler effect.

[0033] 3. In the preferred solution of the present invention, the snap structure is set to be rotatable to prevent the mutual influence between the spoiler units, thereby reducing the occurrence of winding of the spoiler units. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic three-dimensional structure diagram of the airflow spoiler device shown under an embodiment of the present invention.

[0035] Figure 2 It is Figure 1 a schematic three-dimensional structure diagram of the spoiler in

[0036] Figure 3 It is Figure 2 a cross-sectional view of the spoiler in

[0037] Figure 4Cross-sectional view of the flow spoiler under another embodiment of the present invention.

[0038] Figure 5 Schematic perspective view of the flow spoiler under another embodiment of the present invention.

[0039] Figure 6 Schematic perspective view of the flow spoiler under another embodiment of the present invention.

[0040] Figure 7 Schematic perspective view of the air flow spoiler device under one embodiment of the present invention.

[0041] Figure 8 is Figure 7 Cross-sectional view of the shown air flow spoiler device.

[0042] Figure 9 Cross-sectional view of the shown air flow spoiler device under another embodiment.

[0043] Figure 10 Installation schematic diagram of the strip-shaped attachment body of the air flow spoiler device under one embodiment. Detailed implementation manners

[0044] Next, the technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings and specific embodiments. Embodiment

[0045] This embodiment provides an air flow spoiler device, which can be used for a wind power tower barrel and is used during the transportation or hoisting of the wind power tower barrel or for temporary protection after hoisting. The air flow spoiler device includes a plurality of spoiler units. When in use, the spoiler units are spirally wound around the outer wall of the tower barrel along the height direction of the wind power tower barrel and are arranged at equal intervals. The length of each spoiler unit is not limited and is set according to specific needs. Generally, it can be between 5 meters and 15 meters, for example, 12 meters. The total height of the plurality of spoiler units wound around the wind power tower barrel is usually 20% - 100% of the height of the tower barrel, which is determined according to protection requirements, weather conditions (wind speed), transportation attitude, etc. For example, during horizontal transportation, when the tower barrel lies flat, the windward area is large, and it is necessary to wind along the entire length (100% coverage) to avoid violent vibration at the middle section and both ends due to suspension. For temporary protection after hoisting, only the vibration of the suspended section needs to be suppressed, and the top part is covered, 30% - 40%.

[0046] The structure of the spoiler unit is shown in Figure 1 , and includes a flow spoiler 10, which is formed of a polymer material with a relatively light mass. In this way, the overall weight of the spoiler unit is small, which is more convenient for the transportation and installation of the spoiler unit, and is also beneficial to the transportation and hoisting of the tower barrel on which the spoiler unit is installed. In this embodiment, the flow spoiler 10 is formed of a polymer film, such as a polyolefin film.

[0047] SeeFigure 2 and Figure 3 , the spoiler 10 includes a spoiler wall 101 formed by curling back in a direction perpendicular to the connection direction of adjacent spoiler units and a connection cavity 102 surrounded by the spoiler wall 101, and is integrally strip-shaped. The inside of the spoiler wall 101 has a cavity 101a filled with gas to support the spoiler 10, maintain the basic shape of the spoiler 10, and ensure the spoiler function. The cavity can be inflated unidirectionally or inflated and deflated repeatedly. After the cavity is inflated, the cross-section of the formed spoiler 10 is circular, triangular or semi-circular. Refer to Figure 2 as shown, it is an equilateral triangle and is hollow at the center where the connection cavity 102 is located.

[0048] In one embodiment, the cavity 101a inside the spoiler 10 can be an independent cavity unit. Refer to Figure 3 as shown, and it is inflated through an inflation port.

[0049] In another embodiment, the cavity 101a inside the spoiler 10 can also be divided into multiple independent cavity units. Refer to Figure 4 as shown, each cavity unit corresponds to an inflation port. This setting can avoid the situation where the entire spoiler cannot be used after a single cavity is accidentally punctured. After one or several of the multiple independent cavity units are accidentally punctured, it does not affect the other cavity units and has little impact on the overall shape of the spoiler, and it can still be used. The arrangement method of the cavity units is not limited. For example, Figure 5 as shown in, along the outer circumferential direction of the spoiler wall 101, or Figure 6 as shown in, along the length direction of the spoiler wall 101, or other arrangement methods.

[0050] Refer to Figure 4 as shown, the cavity 101a of the spoiler 10 enclosing an equilateral triangle includes several mutually independent cavity units 101-1 and unit intervals 101-2 located between adjacent cavity units 101-1 and connecting and separating adjacent cavity units 101-1. There is a height difference between the surface of the cavity unit and the surface of the unit interval. The height difference is not greater than 1 / 3 of the maximum height of the cavity unit. For example, it can be about 1 / 3, 1 / 4, etc. At the same time, the width of the unit interval should not be too large or too small. Generally, the width of the unit interval is 1 / 4 to 1 / 2 of the width of a single cavity unit, such as about 1 / 4, 1 / 3, etc. At the three corner positions of the equilateral triangle, unit intervals are also provided. The unit intervals can be the same as those at the other positions or the width can be slightly increased, which is beneficial for the spoiler to rotate and form an equilateral triangle.

[0051] The cavity of the spoiler 10 in this embodiment can be a cavity without internal filling, which is supported by filling it with gas to achieve the main shape of the spoiler, or it can be a small cavity formed by a polymer foam material.

[0052] See Figure 1 , a strip-shaped attachment body 20 is arranged in the connection cavity 102 along the connection direction of the spoiler unit and passes through the connection cavity 102, and both ends of the strip-shaped attachment body 20 protrude from the connection cavity 102 of the spoiler 10. The strip-shaped attachment body 20 can be a rope body, such as a nylon rope, a hemp rope, etc.

[0053] A buckle structure 30 for mutual connection is arranged at one end of the strip-shaped attachment body 20, and the strip-shaped attachment body 20 passes through the buckle structure 30 for fixation. The buckle structure 30 adopts a quick-connect ring, and adjacent strip-shaped attachment bodies 20 pass through the quick-connect ring and are knotted and fixed. In this way, it is connected to adjacent strip-shaped attachment bodies 20 through the quick-connect ring. It is also possible to arrange a quick-connect ring at each end of the strip-shaped attachment body 20, and adjacent spoiler units are connected to each other through two quick-connect rings.

[0054] In another embodiment, the buckle structure 30 includes a buckle seat connected to the end of the strip-shaped attachment body 20 and a buckle ring rotatably connected to the buckle seat, adopting a structure similar to a stainless steel hook buckle. In this way, the spoiler is not rotated by the rotation of adjacent spoilers, so that the installation of the spoiler device is more convenient and the stability after installation is better.

[0055] In another embodiment, a stabilizing structure 40 can be arranged outside the spoiler. The stabilizing structure 40 is a polymer foam layer tightly bonded to the outer surface of the spoiler 10 by an adhesive, such as IXPE, XPE or EPE. These materials have better resistance to high and low temperatures, weathering and ultraviolet rays. The thickness of the polyolefin foam layer is 1 mm to 10 mm, preferably 2 mm to 5 mm. For the spoiler device provided with the stabilizing structure 40, see Figure 1 , Figure 7 , Figure 8 , Figure 9 , where Figure 1 the cavity of the spoiler is an independent cavity, Figure 7 the cavity of the spoiler is multiple independent cavities, Figure 8 the shown is the implementation mode where the cavity has no filling inside, Figure 9 the shown is the implementation mode where the cavity is formed by a polymer foam material.

[0056] In order to prevent the strip attachment 20 from detaching from the disrupting body 10, and to relatively fix the position of the disrupting body 10 and the strip attachment 20, and to prevent the disrupting body 10 from sliding or flipping arbitrarily on the strip attachment 20, anti-slip end portions 103 are provided at both ends of the disrupting body 10. The anti-slip end portion 103 can be connected to the end of the stable structure 40 or the end of the disrupting body 10 by existing means, or it can be integrated with the stable structure and formed by extending from the end of the stable structure 40. The latter is preferred because the processing is simpler and the integrity is better and more secure. The anti-slip end portion 103 extends from the end of the stable structure 40 to the far end, gradually tightens, and forms a tightening opening 103a at the far end, and the end of the strip attachment 20 passes through the tightening opening 103a. At the tightening opening 103a position, the strip attachment 20 and the anti-slip end portion 103 are locked and fixed with a cable tie.

[0057] In another embodiment, in order to further define the position of the strip attachment 20, the diameter of the strip attachment 20 is set to be approximately equal to or slightly larger than the width of the unit interval 101-2, so that when installed, the strip attachment 20 can be just confined within the unit interval 101-2, see Figure 10 In this way, the strip attachment 20 will not move freely within the connecting cavity, thus further stabilizing the position of the disrupting body. Furthermore, by restricting the strip attachment 20 within the unit interval 101-2, it is also possible to prevent the random movement of the strip attachment 20 from causing friction on the inner wall of the disrupting body. Since the strip attachment 20 is restricted by the unit interval 101-2, the strip attachment 20 is subject to more frequent friction with it. Therefore, the unit interval 101-2 and the adjacent cavity unit 101-1 that restrict the strip attachment 20 can be further thickened, or a polymer foam layer can be added to the corresponding area of the inner wall of the disrupting body. The material can be consistent with the stable structure.

[0058] The present invention has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and illustration, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made based on the guidance of the present invention, and these variations and modifications all fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An air flow turbulence device, comprising a plurality of turbulence units that can be connected to each other, characterized in that, The spoiler unit includes a spoiler body (10) made of a polymer material and having a cavity inside; the spoiler body (10) includes spoiler walls (101) that are wound and connected in a direction perpendicular to the connection direction between adjacent spoiler units and a connection cavity (102) surrounded by the spoiler walls (101). A strip-shaped attachment body (20) is disposed in the connection cavity (102) along the connection direction and passing through the connection cavity (102), and both ends of the strip-shaped attachment body (20) protrude from the connection cavity (102) of the spoiler body (10). Buckle structures (30) for mutual connection are provided at both ends of the strip-shaped attachment body (20); anti-disengagement end parts (103) for restricting the strip-shaped attachment body (20) from disengaging from the spoiler body (10) are provided at both ends of the spoiler body (10).

2. The airflow disturbing device according to claim 1, characterized in that It further includes a stabilizing structure (40) made of a polymer foam material, and the stabilizing structure (40) is attached to the outer surface of the spoiler body (10).

3. The airflow spoiler device according to claim 2, wherein The anti-disengagement end part (103) extends from the end of the spoiler body (10) or the stabilizing structure (40) to the distal end and forms a tightening opening (103a) at the distal end, and the end of the strip-shaped attachment body (20) passes through the tightening opening (103a).

4. The air flow disturbing device according to claim 3, wherein It further includes a cable tie for locking and fixing the strip-shaped attachment body (20) and the anti-disengagement end part (103) at the position of the tightening opening (103a).

5. The airflow turbulence device according to claim 1, characterized in that, The buckle structure (30) includes a buckle seat connected to the end of the strip-shaped attachment body (20) and a buckle ring rotatably connected to the buckle seat.

6. The airflow turbulence device according to claim 1, wherein The cavity of the spoiler body (10) includes a plurality of mutually independent cavity units (101-1) and unit intervals (101-2) that are located between adjacent cavity units (101-1) and connect and separate adjacent cavity units (101-1).

7. The airflow turbulence device according to claim 6, characterized in that, There is a height difference between the surface of the cavity unit (101-1) and the surface of the unit interval (101-2).

8. The airflow spoiler device according to claim 1, characterized in that, The spoiler body (10) is made of a polyolefin material.

9. The airflow spoiler device according to claim 2, wherein The stabilizing structure (40) is formed of a polyolefin foam.

10. A wind power tower barrel, characterized in that, An air flow spoiler device as described in any one of claims 1-9 above is installed.

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