CN206319845U - A kind of band can revolve the marine riser vortex-induced vibration suppression device of flap - Google Patents
A kind of band can revolve the marine riser vortex-induced vibration suppression device of flap Download PDFInfo
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- CN206319845U CN206319845U CN201621409066.7U CN201621409066U CN206319845U CN 206319845 U CN206319845 U CN 206319845U CN 201621409066 U CN201621409066 U CN 201621409066U CN 206319845 U CN206319845 U CN 206319845U
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- Prior art keywords
- flap
- marine riser
- induced vibration
- mounting groove
- vortex
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Abstract
The utility model, which is related to a kind of band, can revolve the marine riser vortex-induced vibration suppression device of flap, belong to marine riser facility technology field.Technical problem to be solved in the utility model is to provide simple in construction, it is easy for installation, the marine riser vortex-induced vibration suppression device of flap can be revolved according to the band of direction of flow self-adaptative adjustment, including fixed cylinder, flap, rotating shaft, flap mounting groove is axially arranged with the fixed cylinder outer circumference surface, described flap mounting groove one end is provided with blind hole, and the other end is provided with through hole, the flap is provided with connecting hole, and the flap is arranged in flap mounting groove by rotating shaft.Flap of the present utility model can tackle any direction to flow, and make the rotation adjustment of self adaptation, effectively slow down the vortex-induced vibration that different directions of flow trigger, be adapted to the abyssal environment that flow direction frequently changes, extend the service life of marine riser；Whole device of the present utility model is formed by plastic manufacturing, and cost can be greatly reduced, and simplifies manufacturing process.
Description
Technical field
The utility model, which is related to a kind of band, can revolve the marine riser vortex-induced vibration suppression device of flap, belong to marine riser and set
Apply technical field.
Background technology
Exploited and promoted to deep water due to marine oil and gas, the standpipe in deepwater environment can be considered elongated flexible structure, small deformation
Theoretical to be no longer applicable, this make it that the vortex-induced vibration problem of standpipe is more protruded.It is used as the pass of connection well head and upper ocean platform
Push-to road, its reliability being on active service is of great significance for the safe operation tool of marine oil and gas drilling.In wave current ring
The maximum old enemy that marine riser under border is on active service safely is exactly vortex-induced vibration, especially seawater stream the vortex shedding frequency to be formed with
The resonance of the close initiation of marine riser intrinsic frequency, even more accelerates the fatigue rupture of marine riser.Once marine riser loses
Effect, not only results in huge economic loss, can also cause catastrophic destruction to local marine environment.
Existing vortex-induced vibration suppression device is divided into active suppression and passive two kinds of suppression, wherein, passive restraining device master
There are spiral strake, separator disk, radome fairing, stream ribbon, attached cylinder etc., although passive restraining device can reach preferably
Vortex-induced vibration inhibition, but any direction can not be tackled mostly to flow, scope of application limitation.And active suppression device needs volume
Outer power consumption, installs complicated, process is various, not yet reaches that popularization is required.Therefore, for the complexity residing for marine riser
Changeable deepwater environment, designs a kind of restraining device of the different directions of flow of self adaptation, it appears very necessary.
Utility model content
Technical problem to be solved in the utility model be to provide it is simple in construction, it is easy for installation, can be according to direction of flow
The band of self-adaptative adjustment can revolve the marine riser vortex-induced vibration suppression device of flap.
The utility model solves the technical scheme that is used of above-mentioned technical problem：A kind of band can revolve the marine riser of flap
Flap peace is axially arranged with vortex-induced vibration suppression device, including fixed cylinder, flap, rotating shaft, the fixed cylinder outer circumference surface
Tankage, described flap mounting groove one end is provided with blind hole, and the other end is provided with through hole, and the flap is provided with connecting hole, described
Flap is arranged in flap mounting groove by rotating shaft.
It is further that the fixed cylinder includes two symmetrical semicircle cards and embraces sleeve, bolts, described two symmetrical half
Circle card is bolted between embracing sleeve.
It is further that the flap, rotating shaft, the number of flap mounting groove are 8, the flap mounting groove
It is distributed on fixed cylinder outer circumference surface.
It is further that the flap mounting groove is half slot, and the rounding at edge-corner.
The utility model is due to taking above technical scheme, and it has advantages below：
1st, flap of the present utility model can tackle any direction to flow, and make the rotation adjustment of self adaptation, effectively subtract
The vortex-induced vibration that slow different directions of flow trigger, is adapted to the abyssal environment that flow direction frequently changes, substantially prolongs marine riser
Service life；
2nd, whole device of the present utility model is formed by plastic manufacturing, and cost can be greatly reduced, and is simplified manufacturing process, is difficult
Corrosion and damage, may be reused, or marine riser provides certain buoyancy；
3rd, the utility model is directly sleeved on the outer surface of marine riser, and simple installation can be adjusted according to on-site actual situations
Spacing between adjacent restraining device, makes inhibition reach most preferably.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of flap in embodiment；
Fig. 3 is the structural representation of semicircle card armful sleeve in embodiment.
Shown in figure：1- marine risers, 2- fixed cylinders, 3- flaps, 4- rotating shafts, 5- flap mounting grooves, 6- semicircles card is embraced
Sleeve, 7- connecting holes.
Embodiment
Embodiment of the present utility model is further described with reference to embodiment, not therefore by this reality
It is limited in new among described scope of embodiments.
As shown in figure 1, a kind of band of the present utility model can revolve the marine riser vortex-induced vibration suppression device of flap, including it is solid
Flap mounting groove 5 is axially arranged with safety barrel 2, flap 3, rotating shaft 4, the outer circumference surface of fixed cylinder 2, the flap is installed
The one end of groove 5 is provided with blind hole, and the other end is provided with through hole, the wherein shape of flap 3 as shown in Fig. 2 the outside of flap 3 is streamline
Type, inner side is to be axially arranged with connecting hole 7 on the face of cylinder, the face of cylinder of the inner side of flap 3, and the internal diameter of connecting hole 7 is slightly larger than outside rotating shaft 4
Footpath, and the length of flap 3 is slightly less than the length of flap mounting groove 5, such rotating shaft 4 is inserted into from the through hole insertion in fixed cylinder 2
In the connecting hole 7 of flap 3, finally in the blind hole in fixed cylinder 2, i.e., flap 3 is arranged on flap by rotating shaft 4
In mounting groove 5 so that flap 3 can have swing by oneself.
Fixed cylinder 2 is arranged on marine riser when actually used by the utility model, after being put into water, due to
Meet stream directional pressure larger, back of the body stream direction has low-pressure area, and flap 3 rotates swing, changes the stream around marine riser 1
, the formation and development for streaming whirlpool is effectively inhibited, it is achieved thereby that the suppression of vortex-induced vibration；Flap 3 can be tackled
Any direction flows, and makes the rotation adjustment of self adaptation, effectively slows down the vortex-induced vibration that different directions of flow trigger, be adapted to stream
To the abyssal environment frequently changed, the service life of marine riser substantially prolongs.And whole device of the present utility model can be by
Plastic manufacturing is formed, and cost can be greatly reduced, and simplifies manufacturing process, and not perishable and damage may be reused, or
Marine riser provides certain buoyancy.
Wherein flap 3 slows down the vortex-induced vibration that different directions of flow trigger to effectively imitate, therefore the number of flap 3
To be multiple, preferably, flap 3, rotating shaft 4, the number of flap mounting groove 5 are 8, the flap mounting groove
5 are distributed on the outer circumference surface of fixed cylinder 2.
Fixed cylinder 2 need to be arranged on marine riser 1 the utility model when in use, for the ease of installing, it is therefore preferable that real
Mode is applied, the fixed cylinder 2 includes two symmetrical semicircle cards and embraces sleeve 6, bolt, and two symmetrical semicircle cards are embraced sleeve 6 and connect
The bolt hole of connection is provided on tactile end face, described two symmetrical semicircle cards are bolted between embracing sleeve 6.This
Two symmetrical semicircle cards when mounted, need to only be embraced set jacket casing 6 on marine riser 1, then tighten bolt i.e. by sample utility model
Complete to install, the structure simple installation, can adjust the spacing between adjacent restraining device according to on-site actual situations, make suppression
Effect reaches most preferably.
Flap 3 rotates swing because of hydraulic action when actually used, to slow down what different directions of flow triggered
Vortex-induced vibration, wherein be preferred embodiment, the flap mounting groove 5 is half slot, and the rounding at edge-corner.
Can so make the swing of flap 3 faster, amplitude it is bigger, more can effectively slow down the vortex-induced vibration that different directions of flow trigger,
It is adapted to the abyssal environment that flow direction frequently changes, substantially prolongs the service life of marine riser.
Claims (4)
1. a kind of band can revolve the marine riser vortex-induced vibration suppression device of flap, it is characterised in that including fixed cylinder (2), water conservancy diversion
It is axially arranged with flap mounting groove (5), the flap mounting groove on the wing (3), rotating shaft (4), fixed cylinder (2) outer circumference surface
(5) one end is provided with blind hole, and the other end is provided with through hole, and the flap (3) is provided with connecting hole (7), and the flap (3) passes through
Rotating shaft (4) is arranged in flap mounting groove (5).
2. a kind of band according to claim 1 can revolve the marine riser vortex-induced vibration suppression device of flap, it is characterised in that
The fixed cylinder (2) includes two symmetrical semicircle cards and embraces sleeve (6), bolt, and described two symmetrical semicircle cards embrace sleeve (6)
Between be bolted.
3. a kind of band according to claim 1 or 2 can revolve the marine riser vortex-induced vibration suppression device of flap, its feature exists
In the flap (3), rotating shaft (4), the number of flap mounting groove (5) are 8, and the flap mounting groove (5) is uniform
On fixed cylinder (2) outer circumference surface.
4. a kind of band according to claim 3 can revolve the marine riser vortex-induced vibration suppression device of flap, it is characterised in that
The flap mounting groove (5) is half slot, and the rounding at edge-corner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621409066.7U CN206319845U (en) | 2016-12-21 | 2016-12-21 | A kind of band can revolve the marine riser vortex-induced vibration suppression device of flap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621409066.7U CN206319845U (en) | 2016-12-21 | 2016-12-21 | A kind of band can revolve the marine riser vortex-induced vibration suppression device of flap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206319845U true CN206319845U (en) | 2017-07-11 |
Family
ID=59259265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621409066.7U Expired - Fee Related CN206319845U (en) | 2016-12-21 | 2016-12-21 | A kind of band can revolve the marine riser vortex-induced vibration suppression device of flap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206319845U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533188A (en) * | 2018-02-02 | 2018-09-14 | 佛山科学技术学院 | A kind of vortex-induced vibration of marine riser restraining device |
| CN109441372A (en) * | 2018-12-10 | 2019-03-08 | 北京市普利门电子科技有限公司 | Connection centralizer for measuring instrument |
| CN111433429A (en) * | 2017-10-20 | 2020-07-17 | 巴尔莫勒尔卡姆丹克有限公司 | Cylindrical element formed to reduce Vortex Induced Vibration (VIV) and/or drag |
-
2016
- 2016-12-21 CN CN201621409066.7U patent/CN206319845U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111433429A (en) * | 2017-10-20 | 2020-07-17 | 巴尔莫勒尔卡姆丹克有限公司 | Cylindrical element formed to reduce Vortex Induced Vibration (VIV) and/or drag |
| CN111433429B (en) * | 2017-10-20 | 2022-06-14 | 巴尔莫勒尔卡姆丹克有限公司 | Cylindrical element formed to reduce Vortex Induced Vibration (VIV) and/or drag |
| CN108533188A (en) * | 2018-02-02 | 2018-09-14 | 佛山科学技术学院 | A kind of vortex-induced vibration of marine riser restraining device |
| CN109441372A (en) * | 2018-12-10 | 2019-03-08 | 北京市普利门电子科技有限公司 | Connection centralizer for measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20171221 |