CN220622339U - Vortex device for restraining vortex-induced vibration for flexible tower - Google Patents
Vortex device for restraining vortex-induced vibration for flexible tower Download PDFInfo
- Publication number
- CN220622339U CN220622339U CN202322341667.5U CN202322341667U CN220622339U CN 220622339 U CN220622339 U CN 220622339U CN 202322341667 U CN202322341667 U CN 202322341667U CN 220622339 U CN220622339 U CN 220622339U
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- CN
- China
- Prior art keywords
- vortex
- induced vibration
- flexible tower
- mechanisms
- induced
- Prior art date
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Links
- 230000000452 restraining effect Effects 0.000 title description 2
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 3
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 238000010030 laminating Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Wind Motors (AREA)
Abstract
The utility model relates to the technical field of wind power installation, in particular to a vortex-induced vibration inhibiting turbulent flow device for a flexible tower, which comprises a plurality of vortex-induced mechanisms which are detachably connected in sequence from beginning to end, wherein each vortex-induced mechanism is in a triangular structure, two ends of the length direction of each vortex-induced mechanism are fixedly provided with cables for connecting adjacent vortex-induced mechanisms, and the side surfaces of the wall of the flexible tower, which are used for being abutted against, are integrally provided with anti-slip patches which are concave at the middle points of the length; the mooring ropes at the free ends of the turbulence mechanisms at the two ends of the device penetrate through holes preset at the ends of the flexible tower barrel and then are connected with the connecting piece. The vortex-induced vibration prevention sleeve is simple in structure, improves the structure of the vortex-induced vibration prevention strip in the prior art, can effectively attach to the sleeve and change the direction of air flow, and effectively prevents vortex-induced vibration.
Description
Technical Field
The utility model relates to the technical field of wind power installation, in particular to a vortex device for inhibiting vortex-induced vibration for a flexible tower.
Background
After the flexible tower drum is hoisted or installed, vortex is generated on two sides of the flexible tower drum by air flow and pulsation pressure is induced to cause periodic vibration of the tower drum, so that resonance damage phenomenon of the tower drum is caused due to the fact that self-vibration frequency of the sleeve is close to release frequency of the vortex, turbulent flow strips which are wound on the flexible tower drum in the same direction are adopted in the prior art, and further the air flow flowing direction of the tower drum is disturbed, and the vortex with stable frequency cannot be formed. The triangular prism structure that adopts rigid foam or plastics to make in the vortex strip among the prior art mostly exists in tower section of thick bamboo laminating degree poor, the tensioning effect is poor drawback, leads to the installation difficult and the vortex effect is relatively poor.
Disclosure of Invention
The utility model aims to provide a vortex-induced vibration suppressing device for a flexible tower, which is simple in structure, improves the structure of a vortex-induced vibration suppressing strip in the prior art, can effectively attach a sleeve and change the direction of air flow, and effectively prevents vortex-induced vibration.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the device comprises a plurality of turbulence mechanisms which are connected in a detachable mode in sequence from the beginning to the end, wherein each turbulence mechanism is of a triangular structure, cables for connecting adjacent turbulence mechanisms are fixedly arranged at two ends of the length direction of each turbulence mechanism, and anti-slip patches which are inwards concave at the middle point of the length are integrally arranged on the side surfaces of the turbulence mechanisms, which are used for being abutted against the wall of the flexible tower;
the mooring ropes at the free ends of the turbulence mechanisms at the two ends of the device penetrate through holes preset at the ends of the flexible tower barrel and then are connected with the connecting piece.
Preferably, the vortex mechanism at least comprises two triangular blocks, each triangular block consists of a hard block and a sleeve body coated outside the hard block, and the bottoms of the sleeve bodies of adjacent triangular blocks are connected and connected with the anti-slip patch.
Preferably, elastic ropes are further arranged between the adjacent triangular blocks, and two ends of each elastic rope are respectively fixedly embedded in the triangular end faces of the corresponding triangular blocks.
Preferably, the elastic cord is in a stretched state at all times.
Preferably, the hard block is a hollow triangular prism made of plastic materials.
The application process of the utility model is as follows:
according to the design of a fan system, the number of the turbulence mechanisms and the spiral angle installed relative to the tower barrel are determined, then the corresponding turbulence mechanisms are sequentially connected through the head and tail of the mooring ropes, the mooring ropes at the free end parts of the two turbulence mechanisms at the outermost ends penetrate through the preset through holes at the end parts of the flexible tower barrel and are then tensioned, and the position fixing of the mooring ropes and the flexible tower barrel is realized through the connecting pieces.
And after the fan impeller is installed, the turbulence device can be dismantled.
In the tensioning process of vortex mechanism, it is through the effective laminating tower section of thick bamboo outer wall of antiskid, can also make simultaneously take place the state that the top deviates from between the triangular piece on the vortex mechanism, cooperates the elastic rope to keep effective tensioning simultaneously for vortex mechanism can furthest laminating tower section of thick bamboo, and every triangular piece can both be effective to the air current disturbance.
Compared with the prior art, the utility model has the following advantages: the vortex-induced vibration prevention sleeve is simple in structure, improves the structure of the vortex-induced vibration prevention strip in the prior art, can effectively attach to the sleeve and change the direction of air flow, and effectively prevents vortex-induced vibration.
Drawings
FIG. 1 is a schematic structural view of a spoiler according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of the spoiler mechanism in a tensioned state according to an embodiment.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1-2, a vortex-induced vibration suppressing device for a flexible tower, the device comprises a plurality of vortex-induced mechanisms 1 with their heads and tails detachably connected in sequence, wherein cables 11 for connecting adjacent vortex-induced mechanisms are fixedly arranged at two ends of the vortex-induced mechanisms 1 in the length direction, anti-slip patches 12 concaved inwards at the middle points of the length are integrally arranged on the side surfaces of the walls of the vortex-induced mechanisms, and the cables 11 at the free ends of the vortex-induced mechanisms 1 at the two ends of the device penetrate through preset through holes at the ends of the flexible tower and are connected with connecting pieces.
The vortex mechanism 1 at least comprises two triangular blocks 13, each triangular block 13 consists of a hard block and a sleeve body coated outside the hard block, the bottoms of the sleeve bodies of the adjacent triangular blocks 13 are connected and are connected with the anti-slip patch 12, an elastic rope 14 is further arranged between the adjacent triangular blocks 13, two ends of the elastic rope 14 are respectively and fixedly buried in the triangular end faces of the corresponding triangular blocks, and the elastic rope 14 is in a stretched state at any moment. The hard block is a hollow triangular prism made of plastic materials.
The application process of the embodiment is as follows:
according to the design of a fan system, the number of the turbulence mechanisms and the spiral angle installed relative to the tower barrel are determined, then the corresponding turbulence mechanisms are sequentially connected through the head and tail of the mooring ropes, the mooring ropes at the free end parts of the two turbulence mechanisms at the outermost ends penetrate through the preset through holes at the end parts of the flexible tower barrel and are then tensioned, and the position fixing of the mooring ropes and the flexible tower barrel is realized through the connecting pieces.
And after the fan impeller is installed, the turbulence device can be dismantled.
In the tensioning process of vortex mechanism, it is through the effective laminating tower section of thick bamboo outer wall of antiskid, can also make simultaneously take place the state that the top deviates from between the triangular piece on the vortex mechanism, cooperates the elastic rope to keep effective tensioning simultaneously for vortex mechanism can furthest laminating tower section of thick bamboo, and every triangular piece can both be effective to the air current disturbance.
Claims (5)
1. The vortex device for inhibiting vortex-induced vibration for the flexible tower is characterized by comprising a plurality of vortex mechanisms which are detachably connected in sequence from head to tail, wherein each vortex mechanism is of a triangular structure, two ends of the length direction of each vortex mechanism are fixedly provided with cables for connecting adjacent vortex mechanisms, and the side surfaces of the vortex mechanisms, which are used for being abutted against the wall of the flexible tower, are integrally provided with anti-slip patches which are concave at the middle point of the length;
the mooring ropes at the free ends of the turbulence mechanisms at the two ends of the device penetrate through holes preset at the ends of the flexible tower barrel and then are connected with the connecting piece.
2. The vortex-induced vibration suppressing device for a flexible tower according to claim 1, wherein the vortex-induced vibration suppressing device comprises at least two triangular blocks, each triangular block comprises a hard block and a sleeve body coated outside the hard block, and the bottoms of the sleeve bodies of adjacent triangular blocks are connected with each other and are connected with the anti-slip patch.
3. The vortex-induced vibration suppressing device for a flexible tower according to claim 2, wherein an elastic rope is further provided between adjacent triangular blocks, and both ends of the elastic rope are respectively and fixedly embedded in the triangular end faces of the corresponding triangular blocks.
4. A vortex device for suppressing vortex induced vibration in a flexible tower as defined in claim 3 wherein said elastic cord is in a stretched condition at all times.
5. A vortex device for suppressing vortex induced vibration as claimed in claim 3 wherein the hard mass is a hollow triangular prism formed of plastics material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322341667.5U CN220622339U (en) | 2023-08-30 | 2023-08-30 | Vortex device for restraining vortex-induced vibration for flexible tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322341667.5U CN220622339U (en) | 2023-08-30 | 2023-08-30 | Vortex device for restraining vortex-induced vibration for flexible tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220622339U true CN220622339U (en) | 2024-03-19 |
Family
ID=90214629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322341667.5U Active CN220622339U (en) | 2023-08-30 | 2023-08-30 | Vortex device for restraining vortex-induced vibration for flexible tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220622339U (en) |
-
2023
- 2023-08-30 CN CN202322341667.5U patent/CN220622339U/en active Active
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