CN105178617B - The vortex-induced vibration suppression device that large jacket is built - Google Patents
The vortex-induced vibration suppression device that large jacket is built Download PDFInfo
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- CN105178617B CN105178617B CN201510609415.3A CN201510609415A CN105178617B CN 105178617 B CN105178617 B CN 105178617B CN 201510609415 A CN201510609415 A CN 201510609415A CN 105178617 B CN105178617 B CN 105178617B
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Abstract
The application is related to the vortex-induced vibration suppression device that a kind of large jacket is built, its by using can the aerofoil profile kuppe that rotates of box haul, improve vortex-induced vibration inhibition.Vortex-induced vibration suppression device, which is adopted, to be clamped by bolt, and installation and removal are simple, so as to shorten the duration.It is clamped by bolt due to adopting, it is not necessary to any Accessory Members are welded on jacket, jacket will not be damaged.
Description
Technical field
The application is related to the technical field of large jacket construction, and in particular to the whirlpool exciting that a kind of large jacket is built
Dynamic restraining device.
Background technology
In large jacket building course, often occur that vertical piece is not yet firmly attached and vertical completely with adjacent structure
Ground is supported on build the side, and now, the wind acted on vertical rod member can produce whirlpool at wake flow (leeward side) place of rod member
Rotation comes off, and rod member is acted on by alternate whirlpool induced lift force and pulsating drag force, so that vertical piece produces vortex-induced vibration.Work as vortex
When shedding frequence is identical with the intrinsic frequency of vertical piece, vortex-induced vibration will appear from " locking " phenomenon, so that vertical piece produces resonance.Whirlpool
Excited vibration can influence the construction precision of jacket, therefore, it is necessary to take adequate measures to be suppressed.
The vortex-induced vibration that existing large jacket is built suppresses using welding Accessory Members-" dog bone on jacket
The method of head " (Dog Bone) is destroyed vortex and released to disturb wind field.So-called " dog bone " is the metal structure of a dumbbell shaped
Part, a reinforcing bar is welded with above, in use, by reinforcement welding to the vertical wind direction both sides of the vertical vertical rod member of piece, when vertical piece and phase
After connecting, then by " dog bone " excision, and the solder joint after excision is polished flat with emery wheel adjacent sound construction.
The shortcomings that prior art：
1st, vortex-induced vibration inhibition is poor
Prior art is to be released by destroying to be vortexed to suppress vortex-induced vibration, therefore, the welding position pair of " dog bone "
The inhibition of vortex-induced vibration has conclusive influence.Because " dog bone " is welded on jacket, therefore, when wind direction is sent out
During changing, it, which will suppress the effect of vortex-induced vibration, to substantially reduce, or even lose inhibitory action.
2nd, the steel surface of jacket is destroyed
" dog bone " is welded on jacket by prior art using welding method, and jacket surface is caused to damage, damage
Injury easily forms potential difference, so as to produce electrochemical corrosion.
3rd, it is not easy to installing/dismounting
" dog bone " is welded on the appropriate location of jacket by prior art using welding method, this appropriate location with
Wind direction is relevant, if wind direction changes, " dog bone " will be ineffective.Therefore, not only professional person is needed to install, and
Need skilled worker to coordinate installation, and need skilled worker to remove.
The content of the invention
Present inventor considers the above situation of prior art and has made the present invention.
According to an embodiment of the invention, there is provided the vortex-induced vibration suppression device that a kind of large jacket is built, its feature
It is to include fixing hoop and airfoil wake flow cover, wherein, the fixing hoop is annulus cylindricality, wherein, the airfoil wake flow cover
It is made up of two half being mutually symmetrical, rounded sleeve and the fixing card is enclosed on after one end split of described two half
Hoop is outside, wherein, the other end of described two half is protruding, and two inner planes of described two half overlap, and described two
Two outerplanars of individual half intersect at end, are in the shape of the letter V, wherein, inner surface and the fixing card of the airfoil wake flow cover
Fit clearance is left between the outer surface of hoop, so as to rotate the airfoil wake flow cover box haul.
According to an embodiment of the invention, the fixing hoop is enclosed by symmetrical two semicircle slips and formed, the semicircle
The upper and lower ends of slips have flange, for forming bolt fixing hole, and limit the axial movement of the airfoil wake flow cover, its
In, the airfoil wake flow cover is enclosed on outside slips by bolt connection.
According to an embodiment of the invention, the intersecting end of described two half is fixed together by hinge axis.
According to an embodiment of the invention, the inner surface of the fixing hoop is used for through the vertical rod member of vertical piece.
The invention has the advantages that：
1st, vortex-induced vibration inhibition is improved
An object of the present invention is to improve vortex-induced vibration inhibition, and aerofoil profile kuppe of the invention can be turned with box haul
Dynamic, therefore, wind vector does not interfere with the inhibition of vortex-induced vibration.
2nd, jacket surface damage is avoided
The second object of the present invention is to avoid jacket surface damage, therefore uses bolt tightening method installation vortex-induced vibration suppression
Device processed, avoid damage of the welding to jacket surface.
3rd, installing/dismounting is simplified
The third object of the present invention is the installation and removal operation of simplified vortex-induced vibration suppression device, due to not needing specialty
Personage and skilled worker's installing/dismounting, and installing/dismounting process is simple and quick, so as to shorten construction duration.
Brief description of the drawings
Fig. 1 is the schematic diagram for showing vortex-induced vibration suppression device according to an embodiment of the invention；
Fig. 2 is the structural representation for showing fixing hoop and airfoil wake flow cover according to an embodiment of the invention.
Embodiment
Technical scheme is further described in detail with reference to the accompanying drawings and detailed description, thus, this
The advantages of invention and feature will be with description and it is apparent.
It will be appreciated by those of skill in the art that although the following description be related to it is many thin about faulting of slab ends detection technique
Section, but be only for the example of the principle for illustrating the present invention and do not mean that any restrictions.The present invention can be applied to difference
Occasion outside ins and outs exemplified below, without departing from the principle and spirit invented.
, may pair can be in description in this manual in addition, miscellaneous in order to avoid being limited to the description of this specification
The portion of techniques details obtained in prior art data has carried out the processing such as omission, simplification, accommodation, this technology for this area
It will be understood by for personnel, and this does not interfere with adequacy disclosed by the invention.
Fig. 1 is the schematic diagram for showing vortex-induced vibration suppression device according to an embodiment of the invention；Fig. 2 is to show according to this
The fixing hoop of the embodiment of invention and the structural representation of airfoil wake flow cover.
As shown in figure 1, the vortex-induced vibration suppression device of the present invention is made up of fixing hoop and airfoil wake flow cover, wherein, Gu
To determine clip to be made up of two semicircle slips, two end boss of semicircle slips provide bolt fixing hole, see Fig. 2 left-half, and
The axial movement of airfoil wake flow cover is limited, airfoil wake flow cover is hinged by two half, and by bolt connection (Fig. 2 right half part)
It is enclosed on outside slips, fit clearance is left between airfoil wake flow cover and slips, gap length is freely turned with not influenceing airfoil wake flow cover
It is dynamic to be advisable, i.e. airfoil wake flow cover can freely horizontally rotate relative to fixing hoop.
From the above mentioned, work progress is built in large jacket, the vortex-induced vibration suppression device of the present invention is installed to and led
On pipe support rod member, aerofoil profile kuppe can be rotated with box haul, and therefore, wind vector does not interfere with the inhibition of vortex-induced vibration；
Vortex-induced vibration suppression device is installed using bolt tightening method, avoids damage of the welding to jacket surface；Vortex-induced vibration presses down
The installation and removal operation letter of device processed is simple, it is not necessary to professional person and skilled worker's installing/dismounting, and installing/dismounting process
It is simple and quick, so as to shorten construction duration.
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to preferred embodiment, it will be understood by those within the art that, can be right
Technical scheme is modified or equivalent substitution, and without departing from the spirit and scope of technical solution of the present invention, its is equal
It should cover in scope of the presently claimed invention.
Claims (4)
1. the vortex-induced vibration suppression device that a kind of large jacket is built, it is characterised in that including fixing hoop and airfoil wake flow
Cover,
Wherein, the fixing hoop is annulus cylindricality,
Wherein, the airfoil wake flow cover is made up of two half being mutually symmetrical, in circle after one end split of described two half
Shape sleeve is simultaneously enclosed on outside the fixing hoop,
Wherein, the other end of described two half is protruding, and two inner planes of described two half overlap, and described two half
Two outerplanars of piece intersect at the end of the other end, are in the shape of the letter V,
Wherein, fit clearance is left between the outer surface of the inner surface of the circular sleeve and the fixing hoop,
Wherein, the fixing hoop is enclosed by symmetrical two semicircle slips and formed, and the upper and lower ends of the semicircle slips have
Flange, for limiting the axial movement of the airfoil wake flow cover.
2. the vortex-induced vibration suppression device that large jacket according to claim 1 is built, it is characterised in that described two
The intersecting end of the outerplanar of half is fixed together by hinge axis.
3. the vortex-induced vibration suppression device that large jacket according to claim 1 is built, it is characterised in that the fixation
The inner surface of clip is used for through the vertical rod member of vertical piece.
4. the vortex-induced vibration suppression device that large jacket according to claim 3 is built, wherein, described two half,
Described two semicircle slips are fixed by bolt connection respectively,
Wherein, bolt fixing hole is formed in the flange of the upper and lower ends of the semicircle slips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510609415.3A CN105178617B (en) | 2015-09-23 | 2015-09-23 | The vortex-induced vibration suppression device that large jacket is built |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510609415.3A CN105178617B (en) | 2015-09-23 | 2015-09-23 | The vortex-induced vibration suppression device that large jacket is built |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105178617A CN105178617A (en) | 2015-12-23 |
| CN105178617B true CN105178617B (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510609415.3A Active CN105178617B (en) | 2015-09-23 | 2015-09-23 | The vortex-induced vibration suppression device that large jacket is built |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604500A (en) * | 2016-03-11 | 2016-05-25 | 青岛迪玛尔海洋工程有限公司 | Underwater riser vortex-induced vibration abatement device |
| CN109853961A (en) * | 2019-01-14 | 2019-06-07 | 皖西学院 | A kind of concrete filled steel tube tamping equipment |
| CN111306148B (en) * | 2020-03-09 | 2022-02-11 | 中国海洋石油集团有限公司 | Marine riser vortex-induced vibration suppression device |
| CN113463782B (en) * | 2020-03-30 | 2022-07-12 | 江苏金风科技有限公司 | Turbulent flow block and vortex-induced vibration suppression device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4829929A (en) * | 1987-11-02 | 1989-05-16 | Kerfoot Branch P | Fluid-flow drag reducers |
| CN102071883A (en) * | 2010-12-03 | 2011-05-25 | 上海交通大学 | Underwater stand pipe vortex induced vibration inhibiter adopting rotatable cowling |
| CN103306613B (en) * | 2013-06-25 | 2014-12-10 | 西南石油大学 | Vortex-induced vibration inhibition device for marine riser of adjustable and rotatable separating disk |
| CN204940895U (en) * | 2015-09-23 | 2016-01-06 | 中国石油集团海洋工程（青岛）有限公司 | The vortex-induced vibration suppression device that large jacket is built |
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| Publication number | Publication date |
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| CN105178617A (en) | 2015-12-23 |
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