Annular vortex-induced vibration suppression device and method for self-adaptive rotation of steel tube tower rod piece

Abstract

The invention discloses an annular vortex-induced vibration suppression device and method for self-adaptive rotation of a steel tube tower rod piece, and belongs to the technical field of vortex-induced vibration suppression of power transmission steel tube towers. The inner circumferential surface of a first perforated lantern ring of the annular vortex-induced vibration suppression device is arranged on the steel tube rod piece in a sleeving manner, and the outer circumferential surface of the first perforated lantern ring is coaxially and rotationally sleeved with a second perforated lantern ring; an annular gap exists between the first perforated lantern ring and the steel pipe rod piece, a plurality of matched ventilation holes are formed in the outer wall of the first perforated lantern ring and the outer wall of the second perforated lantern ring, and the peripheral face of the second perforated lantern ring is fixedly connected with one end of an external short rotating arm. When the external rotating arm rotates under wind power to conduct first vortex vibration suppression, the second perforated lantern ring rotates relative to the first perforated lantern ring, the ventilation holes are staggered to conduct second vortex vibration suppression, and airflow penetrating through the ventilation holes is blocked by the steel pipe rod piece to be ejected out of the leeward side along the annular gap to conduct third vortex vibration suppression. The vortex vibration suppression state is adjusted according to the wind field, and the vibration suppression efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vortex vibration suppression of power transmission steel tube towers, and particularly relates to a ring-shaped vortex vibration suppression device and method with adaptively rotating steel tube tower rods. Background Art

[0002] Ultra-high voltage transmission lines occupy an indispensable and important position in modern power systems due to their high transmission power and long transmission distances. As the main supporting structure of ultra-high voltage transmission lines, steel tube towers have high load-bearing capacity and good wind resistance. However, since steel tube towers often use long and thin rod structures, such rods are prone to breeze vibration under the action of breeze. Breeze vibration is a small-amplitude, high-frequency vortex-induced vibration phenomenon induced by wind-induced vortex shedding. Although the amplitude of a single vibration is small, the long-term cumulative effect will cause fatigue damage to the rods, seriously threatening the safe and stable operation of the transmission line and the service life of the structure. Therefore, the use of effective vibration suppression devices to suppress the vortex-induced vibration of the steel tube rods of steel tube towers is of great significance to ensure the reliability of ultra-high voltage transmission lines and extend their structural service life.

[0003] However, existing vibration suppression devices are fixed in form and single in function, unable to dynamically adjust according to actual wind field conditions and have poor adaptability to complex incoming flows. Moreover, the vibration suppression devices are directly arranged on the outer surface of the steel pipe rod. Under the action of incoming wind, their structure itself will significantly increase the overall windward area and aerodynamic resistance of the steel pipe rod, which is not conducive to the stability of the transmission tower structure. Existing vibration suppression devices are usually designed for a single specific frequency, making it difficult to effectively suppress the problem of vortex-induced vibration occurring simultaneously in multiple modes. In complex wind environments, it is difficult to effectively suppress vibration. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a ring-shaped vortex-induced vibration suppression device with adaptive rotation of steel tube tower rods, so as to solve the problems of poor adaptability, large additional aerodynamic wind resistance and weak multi-modal vibration suppression capability of existing steel tube rod vortex-induced vibration suppression technology.

[0005] In order to achieve the above-mentioned purpose, the specific technical solutions adopted by this invention are as follows:

[0006] The present invention discloses a ring-shaped vortex vibration suppression device with adaptive rotation of a steel pipe tower member. A plurality of vortex vibration suppression devices are sleeved on the steel pipe member. The vortex vibration suppression device comprises: a first opening collar, a second opening collar and an external short rotating arm;

[0007] The inner circumference of the first opening collar is sleeved on the steel pipe rod and the outer circumference is coaxially rotatably sleeved with the second opening collar. An annular gap exists between the first opening collar and the steel pipe rod. A plurality of matching ventilation holes are evenly arranged on the outer walls of the first opening collar and the second opening collar. The outer circumference of the second opening collar is fixedly connected to one end of the external short rotating arm.

[0008] When the external rotating arm rotates under wind force to perform the first level of vortex vibration suppression, the second open hole ring connected to the external rotating arm rotates relative to the first open hole ring, causing the air holes to be misaligned to perform the second level of vortex vibration suppression, and the airflow passing through the air holes is blocked by the steel pipe rod and ejected from the leeward side along the annular gap to perform the third level of vortex vibration suppression.

[0009] Preferably, the upper and lower ends of the first opening ring are fixedly connected to the outer circumference of the annular fixing ring, and the inner circumference of the annular fixing ring is sleeved on the steel pipe rod, so that an annular gap exists between the first opening ring and the steel pipe rod.

[0010] Preferably, the first opening ring has a plurality of first ventilation holes uniformly formed around the circumference.

[0011] Preferably, the second opening ring is provided with a plurality of matching second ventilation holes evenly arranged circumferentially corresponding to the positions of the first ventilation holes.

[0012] Preferably, the first ventilation hole and the second ventilation hole are adaptively matched in size and shape. When the first ventilation hole and the second ventilation hole are aligned, the windward area of ​​the opening collar is minimized, so that the opening collar has the smallest impact on the original wind load of the steel pipe rod.

[0013] Preferably, the upper and lower inner circumferential surfaces of the second opening collar are rotationally connected to the first opening collar via a rotating slide groove.

[0014] Preferably, a return spring is arranged inside the rotating slide groove, one end of the return spring is connected to the position of the external short rotating arm corresponding to the inner circumference of the second opening ring, and the other end is connected to the position of the center line of the wake corresponding to the dominant wind direction on the outer circumference of the first opening ring.

[0015] Preferably, when the wind force is less than the elastic force of the reset spring, the external short rotating arm faces the center line of the wake of the dominant wind direction of the steel pipe rod, and the air vents on the two open hole rings are aligned; when the wind force is greater than the elastic force of the reset spring, the external short rotating arm drives the second open hole ring to rotate under the action of the wind force until the wind force is less than the elastic force of the reset spring, and the external short rotating arm is driven by the reset spring to restore to its initial position, so that the external short rotating arm always faces the center line of the wake of the dominant wind direction of the steel pipe rod, and vortex vibration suppression in the dominant wind direction is performed in advance.

[0016] Preferably, the external short rotating arm adopts a diverter plate structure or a short tail guide plate structure, and the short tail guide plate structure includes: a triangular guide plate and a short tail wing plate, one side of the triangular guide plate is fixed to the second opening ring and the top corner away from the second opening ring is fixed to the short tail wing plate.

[0017] The present invention also discloses a method for suppressing annular vortex vibration with adaptive rotation of steel tube tower rods. The method comprises the following steps:

[0018] Multiple vortex vibration suppression devices are sleeved on the outer surface of the steel pipe rod, with the external short rotating arm facing the centerline of the wake in the dominant wind direction and the ventilation holes on the perforated collar aligned;

[0019] When the external rotating arm rotates under wind force and disrupts the airflow, the first level of vortex vibration suppression is performed;

[0020] The external rotating arm drives the second opening ring to rotate relative to the first opening ring, so that the ventilation holes are dislocated to perform the second vortex vibration suppression;

[0021] When the airflow passes through the ventilation holes, it will be blocked by the steel pipe rods, and the airflow will be ejected from the leeward side along the annular gap to perform the third vortex vibration suppression.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention drives the rotation of the second opening ring by feeding back the changes in the local wind field through an external short rotating arm, dynamically adjusts the degree of staggering of the ventilation holes and the deflection angle of the external short rotating arm, and then accurately regulates the vortex vibration suppression state according to the wind field, always maintaining the optimal vibration suppression state, and solving the problems of poor adaptability and single working conditions of traditional vibration suppression devices.

[0024] The present invention performs a first level of vortex vibration suppression by the rotation of an external rotating arm under wind force, and a second open hole collar connected to the external rotating arm rotates synchronously with the first open hole collar, so that the air holes are misaligned to perform a second level of vortex vibration suppression, and the airflow passing through the air holes is blocked by the steel pipe rod and emitted from the leeward side along the annular gap to perform a third level of vortex vibration suppression, thereby realizing triple vortex vibration suppression, improving the vortex vibration suppression efficiency and performance, and realizing precise control of the vortex vibration suppression state according to the wind field.

[0025] When the wind force is less than the elastic force of the return spring, the external short rotating arm of the present invention is oriented toward the center line of the wake of the dominant wind direction of the steel pipe rod, thereby suppressing vortex vibration in the dominant wind direction in advance, greatly improving the vortex vibration suppression efficiency, and at the same time, the air holes on the opening ring are aligned to minimize the windward area of ​​the opening ring, so that the air flow can pass through the air holes smoothly, and the influence of the opening ring on the original wind load of the steel pipe rod is minimized; and when the wind force is greater than the elastic force of the return spring, when the second opening ring rotates relative to the first opening ring, the opening ring still significantly reduces the wind resistance than the solid ring structure, thereby avoiding the influence of the vortex vibration suppression device on the wind load of the tower steel pipe rod.

[0026] The device of the present invention has simple structure and processing, convenient installation, low operation and maintenance cost, and provides an efficient, energy-saving and intelligent technical means for controlling vortex-induced vibration of steel pipe rods of transmission towers, with significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration:

[0028] Figure 1 This is a structural diagram of a ring-shaped vortex vibration suppression device with adaptively rotating steel pipe tower members according to the present invention;

[0029] Figure 2 This is a schematic structural diagram of Example 1 of the present invention;

[0030] Figure 3 This is a schematic structural diagram of Example 1 of the present invention;

[0031] Figure 4 This is a schematic structural diagram of Example 2 of the present invention;

[0032] Figure 5 This is a structural diagram of Example 2 of the present invention.

[0033] In the figure: 1. Steel pipe rod; 2. Annular fixing ring; 3. First opening ring; 4. Second opening ring; 5. Rotating slide; 6. External short rotating arm; 7. Return spring; 30. First ventilation hole; 40. Second ventilation hole; 60. Triangular guide plate; 61. Short tail plate. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without making creative efforts are all within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1-3 To describe this embodiment, Example 1 of the present invention discloses an annular vortex-induced vibration suppression device with adaptive rotation of a steel pipe tower member, wherein the multiple annular vortex-induced vibration suppression devices with adaptive rotation of a steel pipe tower member are sleeved on the outer peripheral surface of the key positions corresponding to the two-order vibration modes of the steel pipe member 1; thereby ensuring the effective coverage of the effective action area of ​​the dominant low-frequency vortex-induced vibration mode, and the multiple vortex-induced vibration suppression devices work together to achieve the coordinated suppression of the multi-modal vortex-induced vibration of the steel pipe member.

[0037] The annular vortex vibration suppression device for adaptively rotating steel pipe tower members comprises: a first opening collar 3, a second opening collar 4 and an external short rotating arm 6;

[0038] The inner circumference of the first opening collar 3 is sleeved on the steel pipe rod 1, and the outer circumference is coaxially rotated to sleeve the second opening collar 4. The inner diameter of the first opening collar 3 is larger than the outer diameter of the steel pipe rod 1, so that there is an annular gap between the first opening collar 3 and the steel pipe rod 1. The outer walls of the first opening collar 4 and the second opening collar 4 are evenly provided with a plurality of matching ventilation holes. The outer circumference of the second opening collar 4 is fixedly connected to one end of the external short rotating arm 6.

[0039] When the external rotating arm 6 rotates under the wind to perform the first vortex vibration suppression, the second open hole ring 4 connected to the external rotating arm 6 rotates synchronously with the first open hole ring 4, so that the air holes are misaligned to perform the second vortex vibration suppression, and the airflow passing through the air holes is blocked by the steel pipe rod 1 and emitted from the leeward side along the annular gap to perform the third vortex vibration suppression.

[0040] The annular vortex vibration suppression device with adaptive rotation of steel pipe tower rods also includes: an annular fixing ring 2, two annular fixing rings 2 are symmetrically arranged on the same vertical axis, and the two annular fixing rings 2 are fixedly connected to the outer surface of the steel pipe rod 1 for support and fixation; the outer circumferences of the two annular fixing rings 2 are fixedly connected to the first opening ring 3, so that the inner diameter of the first opening ring 3 is larger than the outer diameter of the steel pipe rod 1, and thus an annular gap exists between the inner circumference of the first opening ring 3 and the outer surface of the steel pipe rod 1.

[0041] The first opening ring 3 is evenly provided with a plurality of first ventilation holes 30 of regular shapes along the circumference.

[0042] It is understandable that the number and size of the first ventilation holes 30 can be designed based on test results.

[0043] The outer circumference of the first opening ring 3 is coaxially rotated to form a second opening ring 4, and the second opening ring 4 is circumferentially evenly provided with a plurality of matching second ventilation holes 40 corresponding to the positions of the first ventilation holes 30. The number and size of the second ventilation holes 40 are the same as those of the first ventilation holes 30.

[0044] The upper and lower inner circumferences of the second hole ring 4 are both connected to the first hole ring 3 by rotating grooves 5, so that the second hole ring 4 can rotate with the steel pipe rod 1 as the axis;

[0045] It can be understood that the thickness of the rotating slide groove 5 is designed to allow a small gap to be maintained between the two to achieve smooth relative rotation.

[0046] One side of the external short rotating arm 6 is fixedly connected to the outer surface of the second hole ring 4 and is perpendicular to the outer peripheral surface of the second hole ring 4; when the wind force is less than the elastic force of the return spring 7, the external short rotating arm 6 is oriented toward the centerline of the wake of the steel pipe rod 1 in the dominant wind direction, and the first ventilation hole 30 and the second ventilation hole 40 are aligned, so that the overall windward projected area of ​​the vortex vibration suppression device is minimized, and the airflow can smoothly pass through the ventilation holes, which significantly reduces the additional aerodynamic wind resistance of the device itself and reduces the impact on the original wind load characteristics of the steel pipe rod 1;

[0047] Among them, the dominant wind direction is the wind direction that occurs most frequently in this area and can be confirmed by the wind rose diagram at the location of the transmission tower.

[0048] A reset spring 7 is provided inside the rotating chute 6, one end of the reset spring 7 is connected to the end position of the external short rotating arm 6 corresponding to the inner circumference of the second opening ring 4, and the other end is connected to the center line position of the wake corresponding to the dominant wind direction of the first opening ring 3.

[0049] When the wind force is greater than the elastic force of the return spring 7, the external short rotating arm 6 drives the second hole ring 4 to rotate under the action of the wind until the wind force is less than the elastic force of the return spring 7. The return spring 7 drives the external short rotating arm 6 to restore the initial position, so that the external short rotating arm 6 is always facing the center line direction of the wake of the dominant wind direction of the steel pipe rod 1. The center line position of the wake is the concentrated area of ​​vortex formation and shedding. The periodic generation of vortices is directly interfered with by the external short rotating arm 6, the symmetry of the Karman vortex street is destroyed, and the vortex vibration suppression of the dominant wind direction is performed in advance.

[0050] In a specific embodiment, when the steel pipe rod 1 is impacted by wind, the external short rotating arm 6 drives the second opening ring 4 to rotate relative to the first opening ring 3 under the action of airflow, causing the second ventilation hole 40 and the first ventilation hole 30 to be misaligned.

[0051] The present invention performs adaptive adjustment according to the frequency of vortex-induced vibration and the incoming wind attack angle, accurately suppressing vortex-induced vibrations of different frequencies and amplitudes. At the same time, the external short rotating arm 6 is preset in the centerline direction of the wake in the dominant wind direction, so that the device can suppress vortex vibration in the dominant wind direction in advance, greatly improving the vibration suppression efficiency.

[0052] like Figure 1-Figure 3 As shown, the working principle of the present invention is:

[0053] The annular vortex vibration suppression device is installed on the outer peripheral surface of the key position corresponding to the second-order vibration mode of the steel pipe rod 1. When the wind force is less than the elastic force of the reset spring 7, the external short rotating arm 6 is directed toward the center line of the wake of the dominant wind direction of the steel pipe rod 1, and the first ventilation hole 30 of the first opening ring 3 is aligned with the second ventilation hole 40 of the second opening ring 4, so that the overall windward projection area of ​​the device is minimized, the airflow can pass through the ventilation holes smoothly, the additional aerodynamic wind resistance of the device itself is significantly reduced, the influence on the original wind load characteristics of the steel pipe rod 1 is reduced, and the safety and reliability are improved.

[0054] When the steel pipe rod 1 is impacted by wind and vortex-induced vibration occurs, the annular vortex vibration suppression devices at multiple different positions are driven by airflow. When the airflow force is greater than the elastic force of the reset spring 7, the external short rotating arm 6 drives the second opening ring 4 to rotate relative to the first opening ring 4 under the action of the airflow, and the reset spring 7 is stretched. The rotation of the external short rotating arm 6 can guide and interfere with the airflow, thereby delaying the interaction between the separation shear layers, destroying the vortex formation process in the near-wake area, and realizing the first-level vortex vibration suppression.

[0055] At the same time, the rotation of the second opening ring 4 causes the position of the second ventilation hole 40 to be misaligned with the first ventilation hole 30, dynamically adjusts the ventilation degree of the ventilation hole, and changes the airflow characteristics of the airflow passing through the first opening ring 3 and the second opening ring 4, so that the second opening ring 4 offsets part of the vortex-induced vibration of the steel pipe rod 1, thereby achieving the second level of vortex vibration suppression.

[0056] When the airflow on the windward side passes through all the ventilation holes, it will be blocked by the steel pipe rod 1. The airflow flows to both sides along the annular gap between the first opening ring 3 and the steel pipe rod 1, and is ejected through the ventilation holes on the leeward side to form a jet pointing to the wake area. Through the interaction with the near-wake area behind the steel pipe rod 1, the wake flow field is changed, and the periodic shedding of the vortex is further weakened, thereby greatly reducing the vortex-induced vibration of the corresponding frequency at the corresponding position, so as to suppress the vortex vibration phenomenon of the steel pipe rod 1 and achieve the third-level vortex vibration suppression.

[0057] When the wind weakens until the airflow force is less than the elastic force of the return spring 7, the external short rotating arm 6 rotates back to the initial position of the external short rotating arm 6 under the elastic force of the return spring 7, and the low wind resistance operation state is restored, so that the external short rotating arm 6 faces the center line of the wake of the dominant wind direction, and vortex vibration suppression is performed in advance in the dominant wind direction, so as to prepare for responding to the next wind field change and realize adaptive vortex vibration suppression.

[0058] Example 2

[0059] The difference between the embodiment 2 and the embodiment 1 is that the structure of the external short rotating arm 6 is different. Figure 2 and Figure 3As shown, the external short rotating arm 6 in Example 1 is a diverter plate structure;

[0060] like Figure 4 and Figure 5 As shown, the external short rotating arm 6 in Example 2 adopts a short tail guide plate structure, and the short tail guide plate structure includes: a triangular guide plate 60 and a short tail wing flat plate 61. One side of the triangular guide plate 60 is fixedly connected to the second opening ring 4, and the triangular guide plate 60 is fixedly connected to the end of the short tail wing flat plate 61 away from the top corner of the second opening ring 4, forming a sharp guide from the short tail wing flat plate 61 to a smooth guide at the triangular guide plate 60, optimizing the airflow path, guiding the airflow to transition smoothly, avoiding stress concentration, and preventing the external short rotating arm 6 from vibrating and deforming in a strong wind environment. At the same time, the triangular guide plate 60 increases the connection area between the external short rotating arm 6 and the second opening ring 4, thereby improving stability.

[0061] Example 3

[0062] Embodiment 3 of the present invention discloses a method for suppressing annular vortex vibration by adaptively rotating steel pipe tower members, comprising the following steps:

[0063] Step 1: Sleeve multiple vortex vibration suppression devices on the outer surface of the steel pipe rod, with the external short rotating arm facing the centerline of the wake in the dominant wind direction and the ventilation holes on the perforated collar aligned;

[0064] Step 2: When the external rotating arm rotates under wind force and disrupts the airflow, the first vortex vibration suppression is performed;

[0065] Step 3: The external rotating arm drives the second opening ring to rotate relative to the first opening ring, so that the ventilation holes are misaligned to perform the second vortex vibration suppression;

[0066] Step 4: When the airflow passes through the ventilation holes, it will be blocked by the steel pipe rods, and the airflow will be ejected from the leeward side along the annular gap to perform the third vortex vibration suppression.

[0067] Compared with the prior art, the present invention has the following beneficial effects:

[0068] The present invention drives the rotation of the second opening ring by feeding back the changes in the local wind field through an external short rotating arm, dynamically adjusts the degree of staggering of the ventilation holes and the deflection angle of the external short rotating arm, and then accurately regulates the vortex vibration suppression state according to the wind field, always maintaining the optimal vibration suppression state, and solving the problems of poor adaptability and single working conditions of traditional vibration suppression devices.

[0069] The present invention performs a first level of vortex vibration suppression by the rotation of an external rotating arm under wind force, and a second open hole collar connected to the external rotating arm rotates synchronously with the first open hole collar, so that the air holes are misaligned to perform a second level of vortex vibration suppression, and the airflow passing through the air holes is blocked by the steel pipe rod and emitted from the leeward side along the annular gap to perform a third level of vortex vibration suppression, thereby realizing triple vortex vibration suppression, improving the vortex vibration suppression efficiency and performance, and realizing precise control of the vortex vibration suppression state according to the wind field.

[0070] When the wind force is less than the elastic force of the return spring, the external short rotating arm of the present invention is oriented toward the center line of the wake of the dominant wind direction of the steel pipe rod, thereby suppressing vortex vibration in the dominant wind direction in advance, greatly improving the vortex vibration suppression efficiency, and at the same time, the air holes on the opening ring are aligned to minimize the windward area of ​​the opening ring, so that the air flow can pass through the air holes smoothly, and the influence of the opening ring on the original wind load of the steel pipe rod is minimized; and when the wind force is greater than the elastic force of the return spring, when the second opening ring rotates relative to the first opening ring, the opening ring still significantly reduces the wind resistance than the solid ring structure, thereby avoiding the influence of the vortex vibration suppression device on the wind load of the tower steel pipe rod.

[0071] The device of the present invention has simple structure and processing, convenient installation, low operation and maintenance cost, and provides an efficient, energy-saving and intelligent technical means for controlling vortex-induced vibration of steel pipe rods of transmission towers, with significant economic and social benefits.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A ring-shaped vortex vibration suppression device with adaptive rotation of a steel pipe tower member, wherein a plurality of vortex vibration suppression devices are sleeved on the steel pipe member (1), characterized in that: The vortex vibration suppression device comprises: a first opening collar (3), a second opening collar (4) and an external short rotating arm (6); The inner circumference of the first opening ring (3) is sleeved on the steel pipe rod (1) and the outer circumference is coaxially rotatably sleeved on the second opening ring (4). An annular gap exists between the first opening ring (3) and the steel pipe rod (1). Multiple matching ventilation holes are evenly arranged on the outer walls of the first opening ring (3) and the second opening ring (4). The outer circumference of the second opening ring (4) is fixedly connected to one end of an external short rotating arm (6). When the external rotating arm (6) rotates under wind force to perform first-level vortex vibration suppression, the second opening ring (4) connected to the external rotating arm (6) rotates relative to the first opening ring (4), causing the air holes to be misaligned to perform second-level vortex vibration suppression, and the airflow passing through the air holes is blocked by the steel pipe rod (1) and ejected from the leeward side along the annular gap to perform third-level vortex vibration suppression.

2. The ring-shaped vortex vibration suppression device with adaptive rotation of steel pipe tower members according to claim 1, characterized in that: The upper and lower ends of the first opening ring (3) are fixedly connected to the outer circumference of the annular fixing ring (2), and the inner circumference of the annular fixing ring (2) is sleeved on the steel pipe rod (1), so that an annular gap exists between the first opening ring (3) and the steel pipe rod (1).

3. The ring-shaped vortex vibration suppression device with adaptive rotation of steel pipe tower members according to claim 1, characterized in that: The first opening collar (3) is provided with a plurality of first ventilation holes (30) evenly distributed in the circumferential direction.

4. The ring-shaped vortex vibration suppression device with adaptive rotation of steel pipe tower members according to claim 3, characterized in that: The second opening collar (4) is provided with a plurality of matching second ventilation holes (40) evenly arranged circumferentially at positions corresponding to the first ventilation holes (30).

5. The ring-shaped vortex vibration suppression device with adaptive rotation of steel pipe tower members according to claim 4, characterized in that: The first ventilation hole (30) and the second ventilation hole (40) are adaptively matched in size and shape. When the first ventilation hole (30) and the second ventilation hole (40) are aligned, the windward area of ​​the opening collar is minimized, so that the influence of the opening collar on the original wind load of the steel pipe rod (1) is minimized.

6. The ring-shaped vortex vibration suppression device with adaptive rotation of steel pipe tower members according to claim 1, characterized in that: The upper and lower inner circumferential surfaces of the second opening collar (4) are both rotationally connected to the first opening collar (3) via a rotating slide groove (5).

7. The ring-shaped vortex vibration suppression device with adaptive rotation of steel pipe tower members according to claim 6, characterized in that: A return spring (7) is provided inside the rotating chute (6), one end of the return spring (7) is connected to the position of the external short rotating arm (6) corresponding to the inner circumference of the second opening collar (4), and the other end is connected to the position of the center line of the wake corresponding to the dominant wind direction on the outer circumference of the first opening collar (3).

8. The ring-shaped vortex vibration suppression device with adaptive rotation of steel pipe tower members according to claim 7, characterized in that: When the wind force is less than the elastic force of the reset spring (7), the external short rotating arm (6) faces the center line of the wake of the steel pipe rod (1) in the dominant wind direction, and the air holes on the two opening rings are aligned; when the wind force is greater than the elastic force of the reset spring (7), the external short rotating arm (6) drives the second opening ring (4) to rotate under the action of the wind force until the wind force is less than the elastic force of the reset spring (7), and the external short rotating arm (6) is driven by the reset spring (7) to restore the initial position, so that the external short rotating arm (6) always faces the center line of the wake of the steel pipe rod (1) in the dominant wind direction, and vortex vibration suppression in the dominant wind direction is performed in advance.

9. The ring-shaped vortex vibration suppression device with adaptive rotation of steel pipe tower members according to claim 1, characterized in that: The external short rotating arm (6) adopts a splitter plate structure or a short tail guide plate structure, wherein the short tail guide plate structure comprises a triangular guide plate (60) and a short tail plate (61), wherein one side of the triangular guide plate (60) is fixedly connected to the second opening collar (4) and the top corner away from the second opening collar (4) is fixedly connected to the short tail plate (61).

10. A method for suppressing annular vortex vibrations with adaptive rotation of steel tube tower members, based on the annular vortex vibration suppression device with adaptive rotation of steel tube tower members according to any one of claims 1 to 9, characterized in that: A plurality of vortex vibration suppression devices are sleeved on the outer surface of the steel pipe rod (1), so that the external short rotating arm (6) faces the center line of the wake in the dominant wind direction, and the positions of the ventilation holes on the perforated collar are aligned; When the external rotating arm (6) rotates under wind force to disrupt the airflow, a first vortex vibration suppression is performed; The external rotating arm (6) drives the second opening ring (4) to rotate relative to the first opening ring (4), so that the ventilation holes are dislocated to perform a second vortex vibration suppression; When the airflow passes through the ventilation hole, it will be blocked by the steel pipe rod (1), and the airflow will be ejected from the leeward side along the annular gap to perform the third vortex vibration suppression.

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