CN107035623A - Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process - Google Patents
Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process Download PDFInfo
- Publication number
- CN107035623A CN107035623A CN201710280575.7A CN201710280575A CN107035623A CN 107035623 A CN107035623 A CN 107035623A CN 201710280575 A CN201710280575 A CN 201710280575A CN 107035623 A CN107035623 A CN 107035623A
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- Prior art keywords
- tower
- flow spoiler
- rope
- vortex
- superelevation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 22
- 238000004804 winding Methods 0.000 claims description 13
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- 230000010355 oscillation Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004540 process dynamic Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0296—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The present invention relates to vortex-induced vibration inhibiting method in a kind of superelevation blower fan tower barrel hoisting process, including tower body, helical form flow spoiler is provided with the tower body outer circumference surface；Flow spoiler upper end is fixed on the top of tower body by fastening straps；Flow spoiler lower end is fixed on the bottom of tower body by fastening straps.Rhizoma Sparganii short column is linked into an integrated entity using rope；The one end for the flow spoiler that triangular prism is constituted is respectively on the uniform belt tensioner fixed to atop a tower, and cable wind rope is installed, and flow spoiler bottom is fixed on tower body outer circumference surface.Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process of the present invention, sets tower flow spoiler, it is ensured that the stability of superelevation tower lifting；Flow spoiler uses active dropping device, and assembling and disassembling speed of application is fast；Flow spoiler bundlees mode using rope, it is ensured that the detachability of flow spoiler, improves efficiency of construction, reduces construction cost, it is ensured that construction safety.
Description
Technical field
It is to be related to a kind of superelevation blower fan specifically the present invention relates to the construction method of wind-powered electricity generation industry superelevation blower fan lifting
Vortex-induced vibration inhibiting method in tower hoisting process.
Background technology
Domestic wind power plant Wind turbine supporting construction tower is highly more than 120m, and superelevation blower fan is installing the 5th section of tower
Afterwards, do not install before cabin, there occurs that tower is overlooked and swung in ellipticity, amplitude of fluctuation has been up to 2.5m, by with the 5th section of tower
Cylinder swings the most violent, determines the vibration of tower tower oscillation crosswise caused by vortex excitation（Referred to as " vortex-induced vibration "）.
Very big difficulty and potential safety hazard is caused because tower oscillation crosswise has the construction of fan tower subsequent installation.
The content of the invention
For above-mentioned deficiency of the prior art, the present invention provides whirlpool exciting in a kind of superelevation blower fan tower barrel hoisting process
Dynamic suppressing method.
The technical solution used in the present invention is：
Vortex-induced vibration inhibiting method in a kind of superelevation blower fan tower barrel hoisting process, including tower body, the tower body are cylindrical
Helical form flow spoiler is provided with side face；Flow spoiler upper end is fixed on the top of tower body by fastening straps；Flow spoiler lower end
The bottom of tower body is fixed on by fastening straps.
The flow spoiler is made up of 3-5 bar triangular prisms；Triangular prism is wrapped on tower body outer circumference surface.
The triangular prism cross section is equilateral triangle, and the length of side of triangle is 300-400 millimeters.
The triangular prism is made up of 500-1000 millimeters of Rhizoma Sparganii short column；Rhizoma Sparganii short column is provided centrally with through hole；Rope
Through through hole, Rhizoma Sparganii short column is linked into an integrated entity by rope.
The material of triangular prism is constituted for light-duty elastomeric material.
Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process, comprises the following steps：
Rhizoma Sparganii short column is linked into an integrated entity using rope；
Tightened up in tower top flange bottom about 300mm positions with belt tensioner, tighten up the anterior direction of head correspondence cabin；
Flow spoiler top is fixed, and the one end for the flow spoiler that three triangular prisms are constituted uniformly is fixed to tightening up for atop a tower respectively
Take, and connect reliable；
Cable wind rope is installed, and 3 200m cable wind ropes, cable wind rope and triangular prism arranged for interval are connected on belt tensioner；
Connected in the middle of flow spoiler, 3 vortex-proof devices are surrounded every 8 meters or so with cord and connected, are greater than around diameter
Tower maximum gauge；
Flow spoiler is wound, and the lower end of three flow spoilers is held, while carrying out rotation winding around tower, tower is wound around tower
Cylinder 1.5 to 2 is enclosed；
Flow spoiler bottom is fixed, and flow spoiler end is fixed into top section tower bottom with belt tensioner after the completion of flow spoiler winding, and
Belt tensioner is tightened up into fixation；
100 meters of upper drawstrings are connected on belt tensioner；
The reserved 40 meters of length in flow spoiler bottom are used to be wrapped in the 4th section of atop a tower, and the rope passed through with centre is fixed；Prevent
Flow spoiler end comes off along rope when tower is lifted by crane；
The lifting of section tower is pushed up, furred ceiling section tower is played, 3 groups of cable wind rope employments are held and complete top section tower and install respectively.
Fixed flow spoiler drawstring, after top section tower is installed, 3 ropes that three people are pulled on ground and trouble flow strip is connected
Son, 40 meters of winding of being turn-taked on the 4th section of tower top, then rope is separately fixed at ground by the circle of winding 1.5 left and right；
Cabin and wind wheel abutting joint, complete the same tower of cabin, and wind wheel and is completed to remove after bolt fastening and disturbed with the docking of cabin
Flow device and cable wind rope.
The beneficial effect of the present invention compared with the prior art：
Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process of the present invention, the present invention changes the tail flow field after component, breaks
The regularity of bad tail flow field whirlpool is released, and helix riser is installed such as in structure and changes structural section shape.
In 10 meters of winding trouble flow strips of the 5th section of tower of tower and the 4th section of atop a tower, to prevent the generation of vortex from reducing
Tower Oscillation Amplitude.
Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process of the present invention, sets tower flow spoiler, it is ensured that superelevation
The stability of tower lifting；Flow spoiler uses active dropping device, and assembling and disassembling speed of application is fast；Flow spoiler is bundled using rope
Mode, it is ensured that the detachability of flow spoiler, improves efficiency of construction, reduces construction cost, it is ensured that construction safety.
Brief description of the drawings
Fig. 1 is the structural representation of vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process of the present invention；
Fig. 2 is the Rhizoma Sparganii short column attachment structure signal of vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process of the present invention
Figure；
Fig. 3 is the Rhizoma Sparganii short column plan structure signal of vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process of the present invention
Figure.
Critical piece symbol description in accompanying drawing：
In figure：
1st, tower body 2, flow spoiler
3rd, fastening straps 4, cable wind rope
5th, rope 6, through hole
7th, Rhizoma Sparganii short column.
Embodiment
Referring to the drawings and embodiment the present invention will be described in detail：
Knowable to accompanying drawing 1-3, vortex-induced vibration inhibiting method in a kind of superelevation blower fan tower barrel hoisting process, including tower body 1, it is described
Helical form flow spoiler 2 is provided with the outer circumference surface of tower body 1；The upper end of flow spoiler 2 is fixed on tower body 1 by fastening straps 3
Top；The lower end of flow spoiler 2 is fixed on the bottom of tower body by fastening straps 3.
The flow spoiler is made up of 3-5 bar triangular prisms；Triangular prism is wrapped on tower body outer circumference surface.
The triangular prism cross section is equilateral triangle, and the length of side of triangle is 300-400 millimeters.
The triangular prism is made up of 500-1000 millimeters of Rhizoma Sparganii short column；Rhizoma Sparganii short column 7 is provided centrally with through hole 6；Rope
Rope 5 passes through through hole 6, and Rhizoma Sparganii short column is linked into an integrated entity by rope 5.
The material of triangular prism is constituted for light-duty elastomeric material.
Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process, comprises the following steps：
Rhizoma Sparganii short column is linked into an integrated entity using rope；
Tightened up in tower top flange bottom about 300mm positions with belt tensioner, tighten up the anterior direction of head correspondence cabin, it is convenient follow-up
Dismantle the belt tensioner；
Flow spoiler top is fixed, and the one end for the flow spoiler that three articles of triangular prisms are constituted is uniform respectively to be fixed to the 5th section of atop a tower
Belt tensioner on, and connect reliable；
Cable wind rope 4 is installed, and 3 200m cable wind ropes 4, cable wind rope 4 and triangular prism arranged for interval are connected on belt tensioner；
Connected in the middle of flow spoiler, 3 vortex-proof devices are surrounded every 8 meters or so with cord and connected, are greater than around diameter
Tower maximum gauge；
Flow spoiler is wound, and the lower end of three flow spoilers is held, while carrying out rotation winding around tower, tower is wound around tower
Cylinder 1.5 to 2 is enclosed；
Flow spoiler bottom is fixed, and flow spoiler end is fixed into the 5th section of tower bottom with belt tensioner after the completion of flow spoiler winding, and
Belt tensioner is tightened up into fixation；Cable wind rope, which should not be tightened, to be pressed onto on tower wall；
100 meters of upper drawstrings are connected on belt tensioner；
The reserved 40 meters of length in flow spoiler bottom are used to be wrapped in the 4th section of atop a tower, and the rope passed through with centre is fixed；Prevent
Flow spoiler end comes off along rope when tower is lifted by crane；
The lifting of section tower is pushed up, the 5th section of tower of lifting is top section tower, and 3 groups of employments of cable wind rope 4 are held and complete to push up section tower respectively
Install.
Ensure the drawstring of automatic dropping device and can freely be hung through 3 ropes and 3 cable wind ropes of vortex eliminator
Do not wind.3 groups of cable wind rope ground are fixed.
Fixed flow spoiler drawstring, the 5th section of tower is that three people pull and trouble flow strip on ground after top section tower is installed
3 ropes of connection, 40 meters of winding of being turn-taked on the 4th section of tower top, then rope is separately fixed at by the circle of winding 1.5 left and right
Ground；
Ensure that the connection of disturbing flow device top is reliable, anti-falling stop thing.
Cabin and wind wheel abutting joint, complete the same tower of cabin, and wind wheel and is torn open after completing bolt fastening with the docking of cabin
Except flow spoiler and cable wind rope.
Disturbing flow device is removed, and is ensured safety in demolishing process, is forbidden directly falling disturbing flow device, using ground winch,
Fixed pulley and it is placed on pull rope in tower device is slowly placed into ground, to prevent falling stop thing.
Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process of the present invention, in the 5th section of tower of tower and the 4th section of tower
The 10 meters of winding flow spoilers in cylinder top, to prevent the generation of vortex from reducing tower Oscillation Amplitude.
Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process of the present invention, sets tower flow spoiler, it is ensured that superelevation
The stability of tower lifting；Flow spoiler uses active dropping device, and assembling and disassembling speed of application is fast；Flow spoiler is bundled using rope
Mode, it is ensured that the detachability of flow spoiler, improves efficiency of construction, reduces construction cost, it is ensured that construction safety.
The above described is only a preferred embodiment of the present invention, not making any formal to the structure of the present invention
Limitation.Any simple modification, equivalent variations and modification that every technical spirit according to the present invention is made to above example,
Belong in the range of technical scheme.
Claims (6)
1. vortex-induced vibration inhibiting method in a kind of superelevation blower fan tower barrel hoisting process, including tower body, it is characterised in that described
Helical form flow spoiler is provided with tower body outer circumference surface；Flow spoiler upper end is fixed on the top of tower body by fastening straps
Portion；Flow spoiler lower end is fixed on the bottom of tower body by fastening straps.
2. vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process according to claim 1, it is characterised in that：It is described
Flow spoiler is made up of 3-5 bar triangular prisms；Triangular prism is wrapped on tower body outer circumference surface.
3. vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process according to claim 2, it is characterised in that：It is described
Triangular prism cross section is equilateral triangle, and the length of side of triangle is 300-400 millimeters.
4. vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process according to claim 2, it is characterised in that：It is described
Triangular prism is made up of 500-1000 millimeters of Rhizoma Sparganii short column；Rhizoma Sparganii short column is provided centrally with through hole；Rope passes through through hole, Rhizoma Sparganii
Short column is linked into an integrated entity by rope.
5. vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process according to claim 1, it is characterised in that：Rhizoma Sparganii
The material of post is constituted for light-duty elastomeric material.
6. vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process according to claim 1, it is characterised in that including
Following steps：
Rhizoma Sparganii short column is linked into an integrated entity using rope；
Tightened up in tower top flange bottom about 300mm positions with belt tensioner, tighten up the anterior direction of head correspondence cabin；
Flow spoiler top is fixed, and the one end for the flow spoiler that three triangular prisms are constituted uniformly is fixed to tightening up for atop a tower respectively
Take, and connect reliable；
Cable wind rope is installed, and 3 200m cable wind ropes, cable wind rope and triangular prism arranged for interval are connected on belt tensioner；
Connected in the middle of flow spoiler, 3 vortex-proof devices are surrounded every 8 meters or so with cord and connected, are greater than around diameter
Tower maximum gauge；
Flow spoiler is wound, and the lower end of three flow spoilers is held, while carrying out rotation winding around tower, tower is wound around tower
Cylinder 1.5 to 2 is enclosed；
Flow spoiler bottom is fixed, and flow spoiler end is fixed into top section tower bottom with belt tensioner after the completion of flow spoiler winding, and
Belt tensioner is tightened up into fixation；
100 meters of upper drawstrings are connected on belt tensioner；
The reserved 40 meters of length in flow spoiler bottom are used to be wrapped in the 4th section of atop a tower, and the rope passed through with centre is fixed；Prevent
Flow spoiler end comes off along rope when tower is lifted by crane；
The lifting of section tower is pushed up, furred ceiling section tower is played, 3 groups of cable wind rope employments are held and complete top section tower and install respectively；
Fixed flow spoiler drawstring, after top section tower is installed, three people pull 3 ropes connected with trouble flow strip on ground,
Turn-taked on the 4th section of tower top and wind 40 meters, then rope is separately fixed at ground by the circle of winding 1.5 left and right；
Cabin and wind wheel abutting joint, complete the same tower of cabin, and wind wheel and is completed to remove after bolt fastening and disturbed with the docking of cabin
Flow device and cable wind rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710280575.7A CN107035623A (en) | 2017-04-26 | 2017-04-26 | Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710280575.7A CN107035623A (en) | 2017-04-26 | 2017-04-26 | Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process |
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| CN107035623A true CN107035623A (en) | 2017-08-11 |
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| CN201710280575.7A Pending CN107035623A (en) | 2017-04-26 | 2017-04-26 | Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058050A (en) * | 2018-08-22 | 2018-12-21 | 中国二十二冶集团有限公司 | The device and method for inhibiting superelevation blower fan tower barrel to swing |
| CN109518587A (en) * | 2019-01-22 | 2019-03-26 | 中铁二院工程集团有限责任公司 | A kind of board-like sunpender inhibiting Vortex-excited vibration |
| CN109737012A (en) * | 2019-02-22 | 2019-05-10 | 上海电气风电集团有限公司 | Flow spoiler, blower fan tower barrel and the wind-driven generator including it |
| CN110761954A (en) * | 2019-11-19 | 2020-02-07 | 中国电建集团西北勘测设计研究院有限公司 | Prefabricated concrete fan tower cylinder with spiral line connecting seam and connecting method |
| US11585321B2 (en) * | 2020-10-28 | 2023-02-21 | General Electric Company | Method and system for attaching vortex suppression devices to a wind turbine tower |
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| CN202073506U (en) * | 2010-12-28 | 2011-12-14 | 中国海洋石油总公司 | Vortex induced vibration restraining device of free standpipe in deep sea |
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| CN109058050A (en) * | 2018-08-22 | 2018-12-21 | 中国二十二冶集团有限公司 | The device and method for inhibiting superelevation blower fan tower barrel to swing |
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| CN110761954A (en) * | 2019-11-19 | 2020-02-07 | 中国电建集团西北勘测设计研究院有限公司 | Prefabricated concrete fan tower cylinder with spiral line connecting seam and connecting method |
| CN110761954B (en) * | 2019-11-19 | 2024-01-19 | 中国电建集团西北勘测设计研究院有限公司 | Precast concrete fan tower barrel with spiral line connecting seam and connecting method |
| US11585321B2 (en) * | 2020-10-28 | 2023-02-21 | General Electric Company | Method and system for attaching vortex suppression devices to a wind turbine tower |
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Application publication date: 20170811 |