CN206477803U - The marine riser vortex-induced vibration suppression device that a kind of radome fairing and active suppression are combined - Google Patents
The marine riser vortex-induced vibration suppression device that a kind of radome fairing and active suppression are combined Download PDFInfo
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- CN206477803U CN206477803U CN201720113456.8U CN201720113456U CN206477803U CN 206477803 U CN206477803 U CN 206477803U CN 201720113456 U CN201720113456 U CN 201720113456U CN 206477803 U CN206477803 U CN 206477803U
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- radome fairing
- active suppression
- active
- marine riser
- induced vibration
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Abstract
The utility model is related to the marine riser vortex-induced vibration suppression device that a kind of radome fairing and active suppression are combined, and belongs to marine riser facility technology field.Technical problem to be solved in the utility model is to provide simple in construction, the marine riser vortex-induced vibration suppression device that radome fairing easy for installation and active suppression are combined, including radome fairing, active suppression cylinder, streamiline surface outside the radome fairing is axially arranged with active suppression cylinder mounting groove, active suppression cylinder two ends are provided with rotating shaft, and active suppression cylinder is arranged in active suppression cylinder mounting groove by rotating shaft.Radome fairing of the present utility model can tackle any direction to flow, and make adaptive rotation adjustment, effectively slow down the vortex-induced vibration that different directions of flow trigger；Active suppression cylindrical needle is to different open oceans, by adjusting rotational velocity, can further strengthen inhibition.
Description
Technical field
The utility model is related to the marine riser vortex-induced vibration suppression device that a kind of radome fairing and active suppression are combined, and belongs to sea
Foreign standpipe facility technology 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Theoretical to be no longer applicable, this causes the vortex-induced vibration problem of standpipe more to protrude.It is used as the pass of connection well head and upper ocean platform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 adaptive different directions of flow, 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 marine riser vortex-induced vibration suppression device that the radome fairing and active suppression adaptively adjusted is combined.
The utility model solves the technical scheme that is used of above-mentioned technical problem：A kind of radome fairing and active suppression are combined
Marine riser vortex-induced vibration suppression device, including radome fairing, active suppression cylinder, the streamiline surface outside the radome fairing is axially arranged with
Active suppression cylinder mounting groove；The active suppression cylinder two ends have rotating shaft, and the active suppression cylinder is installed by rotating shaft
In active suppression cylinder mounting groove.
It is further that the radome fairing includes two symmetrical radome fairing sleeves, the end tool of the radome fairing sleeve
There is semi-circular ends snap ring, the radome fairing sleeve and semi-circular ends snap ring are formed in one, and the semi-circular ends snap ring is provided with
It is bolted between embedded bolt connecting hole, described two symmetrical radome fairing sleeves.
It is further that the number of the active suppression cylinder mounting groove is 2, the active suppression cylinder mounting groove pair
Title is arranged on the streamiline surface outside radome fairing.
It is further that the semi-circular ends snap ring embeds steel ball, so that radome fairing is rotated according to direction of flow.
It is further that, provided with small-sized motor mounting groove position in the radome fairing, the small-sized motor is installed
Built-in small-sized motor is installed, the rotating shaft of the built-in small-sized motor and active suppression cylinder passes through gear in groove position
Drive connection, the active suppression cylinder is rotated with built-in small-sized motor.
The utility model is due to taking above technical scheme, and it has advantages below：
1st, the passive suppression of radome fairing is combined by the utility model with the active suppression of rotating cylindrical, and master is compensate for mutually
Defect that is dynamic and passively suppressing, can flow to any direction, make adaptive rotation adjustment and active suppression cylinder rotating speed is adjusted
It is whole, effectively slow down the vortex-induced vibration that different directions of flow trigger, be adapted to the abyssal environment that flow direction frequently changes, substantially prolongs
The service life of marine riser；
2nd, most of device of the present utility model is formed by plastic manufacturing, and cost can be greatly reduced, and simplifies manufacturing process, no
Perishable and damage, may be reused, because radome fairing is hollow structure, or marine riser provides certain buoyancy；
3rd, small-sized motor is built in sleeve, slow down the corrosion and damage of motor, extend the use longevity of motor
Life；
4th, the utility model is directly sleeved on the outer surface of marine riser, simple installation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the inside structure schematic diagram of radome fairing in embodiment；
Fig. 3 is the structural representation of active suppression cylinder in embodiment；
Fig. 4 is embodiment medial end portions snap ring schematic diagram.
Shown in figure：1- marine risers, 2- radome fairings, 3- semi-circular ends snap rings, 4- active suppression cylinders, the small-sized drivings of 5-
Motor mounting groove position, 6- rotating shafts, 7- connecting holes, 8- steel balls.
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, the marine riser vortex-induced vibration that a kind of radome fairing of the present utility model and active suppression are combined suppresses dress
Put, including radome fairing 2, active suppression cylinder 4, being axially arranged with active suppression cylinder 4 on the streamiline surface outside the radome fairing 2 installs
Groove；Rotating shaft 6 (rotating shaft 6 and active suppression cylinder 4 are formed in one), the active suppression are stretched out in the two ends of active suppression cylinder 4
Rounding post 4 is arranged in active suppression cylinder mounting groove by rotating shaft 6.
Radome fairing 2 is sleeved on marine riser 1 and connection cables in actual use, is put into water by the utility model
In after, due to meet stream directional pressure it is larger, the back of the body stream direction there is low-pressure area, radome fairing 2 is rotated, and changes marine riser 1
The flow field of surrounding, effectively inhibits the formation and development for streaming whirlpool, it is achieved thereby that the passive suppression of vortex-induced vibration；Actively
Different open oceans can be directed to by suppressing cylinder 4, by adjusting its rotational velocity, further slow down the whirlpool of direction of flow initiation
Excited vibration, is adapted to the abyssal environment that current speed frequently changes, and substantially prolongs the service life of marine riser 1, the active
The number for suppressing cylinder mounting groove is 2, and the active suppression cylinder mounting groove is arranged symmetrically in the streamiline surface outside radome fairing 2
On.And most of device of the present utility model can be formed by plastic manufacturing, cost can be greatly reduced, simplifies manufacturing process, no
Perishable and damage, may be reused, and the hollow structure of radome fairing 2 can also provide certain buoyancy for marine riser 1.
Radome fairing 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
Apply mode as follows, the radome fairing 2 includes two symmetrical radome fairing sleeves, the end of the radome fairing sleeve has half nose circle
Portion's snap ring 3, the radome fairing sleeve and semi-circular ends snap ring 3 are formed in one, and the semi-circular ends snap ring 3 is provided with embedded spiral shell
It is bolted between bolt connecting hole 7, described two symmetrical radome fairing sleeves.So the utility model when mounted, only
Two symmetrical radome fairing sleeves need to be enclosed on marine riser 1, then tighten bolt and complete installation, the structure simple installation.Institute
State end snap ring 3 and embed steel ball 8, so that radome fairing 2 is rotated according to direction of flow around marine riser 1.
In order to protect motor, it is preferred embodiment, provided with small-sized motor mounting groove position 5 in the radome fairing 2,
Built-in small-sized motor, the built-in small-sized motor and active are installed in the small-sized motor mounting groove position 5
The rotating shaft 6 for suppressing cylinder 4 is connected by gear drive, and the active suppression cylinder 4 is rotated with built-in small-sized motor.
Small-sized motor is built in sleeve, the corrosion and damage of motor is slow down, the service life of motor is extended.
Claims (5)
1. the marine riser vortex-induced vibration suppression device that a kind of radome fairing and active suppression are combined, it is characterised in that including radome fairing
(2), active suppression cylinder (4), the streamiline surface of the radome fairing (2) outside is axially arranged with active suppression cylinder mounting groove；The master
Dynamic cylinder (4) two ends that suppress have rotating shaft (6), and the active suppression cylinder (4) is arranged on active suppression cylinder by rotating shaft (6)
In mounting groove.
2. the marine riser vortex-induced vibration suppression device that a kind of radome fairing according to claim 1 and active suppression are combined, its
It is characterised by, the radome fairing (2) includes two symmetrical radome fairing sleeves, the end of the radome fairing sleeve has half nose circle
Portion's snap ring (3), the radome fairing sleeve and semi-circular ends snap ring (3) are formed in one, and the semi-circular ends snap ring (3) is provided with
It is bolted between embedded bolt connecting hole (7), described two symmetrical radome fairing sleeves.
3. the marine riser vortex-induced vibration suppression device that a kind of radome fairing according to claim 2 and active suppression are combined, its
It is characterised by, the number of the active suppression cylinder mounting groove is 2, and the active suppression cylinder mounting groove is arranged symmetrically in whole
On the streamiline surface of stream cover (2) outside.
4. the marine riser vortex-induced vibration suppression device that a kind of radome fairing according to claim 2 and active suppression are combined, its
It is characterised by, the semi-circular ends snap ring (3) embeds steel ball (8), so that radome fairing (2) is rotated according to direction of flow.
5. the marine riser vortex-induced vibration suppression device that a kind of radome fairing according to claim 1 and active suppression are combined, its
It is characterised by, provided with small-sized motor mounting groove position (5) in the radome fairing (2), the small-sized motor mounting groove position
(5) built-in small-sized motor is installed, the rotating shaft (6) of the built-in small-sized motor and active suppression cylinder (4) is led in
Gear drive connection is crossed, the active suppression cylinder (4) is rotated with built-in small-sized motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720113456.8U CN206477803U (en) | 2017-02-07 | 2017-02-07 | The marine riser vortex-induced vibration suppression device that a kind of radome fairing and active suppression are combined |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720113456.8U CN206477803U (en) | 2017-02-07 | 2017-02-07 | The marine riser vortex-induced vibration suppression device that a kind of radome fairing and active suppression are combined |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206477803U true CN206477803U (en) | 2017-09-08 |
Family
ID=59748838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720113456.8U Expired - Fee Related CN206477803U (en) | 2017-02-07 | 2017-02-07 | The marine riser vortex-induced vibration suppression device that a kind of radome fairing and active suppression are combined |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206477803U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916899A (en) * | 2017-11-24 | 2018-04-17 | 西南石油大学 | A kind of vortex-induced vibration suppression device and method of the rotatable wavy orifice plate in change aperture |
| CN108828946A (en) * | 2018-07-06 | 2018-11-16 | 合肥工业大学 | A kind of self-adaptation control method for rocket radome fairing damping noise reduction |
| CN109905056A (en) * | 2017-12-11 | 2019-06-18 | 中国石油大学(华东) | A kind of vortex-induced vibration of marine riser collection of energy and active suppression device and method based on piezoelectric ceramics |
| GB2625182A (en) * | 2022-10-28 | 2024-06-12 | Univ Shanghai Maritime | An offshore drilling riser vortex-induced vibration suppression device |
-
2017
- 2017-02-07 CN CN201720113456.8U patent/CN206477803U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916899A (en) * | 2017-11-24 | 2018-04-17 | 西南石油大学 | A kind of vortex-induced vibration suppression device and method of the rotatable wavy orifice plate in change aperture |
| CN109905056A (en) * | 2017-12-11 | 2019-06-18 | 中国石油大学(华东) | A kind of vortex-induced vibration of marine riser collection of energy and active suppression device and method based on piezoelectric ceramics |
| CN108828946A (en) * | 2018-07-06 | 2018-11-16 | 合肥工业大学 | A kind of self-adaptation control method for rocket radome fairing damping noise reduction |
| CN108828946B (en) * | 2018-07-06 | 2021-04-27 | 合肥工业大学 | Self-adaptive control method for damping and noise reduction of rocket fairing |
| GB2625182A (en) * | 2022-10-28 | 2024-06-12 | Univ Shanghai Maritime | An offshore drilling riser vortex-induced vibration suppression device |
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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: 20170908 Termination date: 20180207 |