CN206625791U - A kind of submarine pipeline vortex-induced vibration restraining device - Google Patents
A kind of submarine pipeline vortex-induced vibration restraining device Download PDFInfo
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- CN206625791U CN206625791U CN201720185754.8U CN201720185754U CN206625791U CN 206625791 U CN206625791 U CN 206625791U CN 201720185754 U CN201720185754 U CN 201720185754U CN 206625791 U CN206625791 U CN 206625791U
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- pipeline
- equal
- support shaft
- external diameter
- flabellum
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Abstract
The utility model discloses a kind of submarine pipeline vortex-induced vibration restraining device.A pair of A-frames are fixed on pipeline, each summit of A-frame is nearby provided with installation site, three support shafts parallel with pipeline are angularly fixed by the installation site on A-frame, tandem arranges one or more six-bladed fans to each support shaft in the axial direction, each six-bladed fan includes flabellum and sleeve, and is separated between two neighboring six-bladed fan with baffle plate.Under action of ocean current, six-bladed fan is driven to be rotated around support shaft, the formation and development of failure period whirlpool, suppresses the vortex-induced vibration of submarine pipeline, and the distance between the quantity of six-bladed fan and adjacent six-bladed fan can be suitably adjusted, makes the best results of suppression vortex-induced vibration.Meanwhile flabellum and sleeve are integral, the outer surface of support shaft is sleeved on, processing and manufacturing is simple, easy for installation, for ease of maintenaince, economical and practical.
Description
Technical field
A kind of submarine pipeline vortex-induced vibration restraining device is the utility model is related to, belongs to field of ocean engineering.
Background technology
With the continuous discovery petered out with Marine oil and gas resource of Land petroleum resource, marine oil and gas industry gradually by
To the concern of countries in the world.Submarine pipeline as a kind of instrument of trandfer fluid medium, have it is continuous, economical, quick, reliable,
Many advantages, such as conveying capacity is big, and Field of Ocean Pipeline Engineering construction is put into extensively.Submarine pipeline is high investment, the offshore oil of excessive risk
Gas field production facility, submarine pipeline local environment complicated condition, when ocean current is by the suspended span section of marine riser or pipeline, Chang Hui
Generation vortex-induced vibration phenomenon, if vortex-induced vibration long duration of action on pipeline, can cause the fatigue rupture of pipeline.Submarine pipeline one
Denier occurs to destroy or leakage, it will serious harm is caused to ocean and coastal ecology environment, is caused to enterprise and country huge
Economic loss.In order to suppress vortex-induced vibration, prevent pipeline from fatigue rupture occurs, existing submarine pipeline vortex-induced vibration suppresses dress
Put typically directly in suspended span pipe surface or standpipe surface increase disturbing flow device, weaken the cycle by changing surrounding flow field
The formation and development of property whirlpool, it is generally complicated yet with the limitation of submarine pipeline caliber, these disturbing flow devices, cause to pacify
Dress is inconvenient, and manufacturing cost is high, and vortex-induced vibration inhibition has much room for improvement.
Utility model content
The purpose of the utility model is to propose a kind of submarine pipeline vortex-induced vibration restraining device.
To achieve these goals, the utility model adopts the following technical scheme that：A kind of submarine pipeline vortex-induced vibration suppresses
Device, a pair of A-frames are fixed on pipeline, each summit of A-frame is nearby provided with installation site, passes through triangle branch
Installation site on frame angularly fixes three support shafts parallel with pipeline, and tandem arranges one to each support shaft in the axial direction
Individual or multiple six-bladed fans, each six-bladed fan include six flabellums and a sleeve, and between two neighboring six-bladed fan
Separated with baffle plate.
Preferably, A-frame is equilateral triangle, outer diameter tube of the A-frame length of side more than or equal to 1.74 times and
Outer diameter tube less than or equal to 5 times, is fixedly mounted between A-frame and pipeline.
Preferably, support shaft is the cylinder or cylindrical structure parallel to pipeline axial direction, and the distance of support shaft and pipeline is more than
Flabellum width H and the flabellum width H less than or equal to 3 times.
Preferably, outer diameter tubes of the flabellum length L more than or equal to 0.03 times and the outer diameter tube less than or equal to 10 times, fan
Leaf width degree H is more than or equal to 0.03 times of outer diameter tube and the outer diameter tube less than or equal to 4 times, flabellum thickness S are more than or equal to
0.02 times of outer diameter tube and less than or equal to 0.5 times of outer diameter tube, sleeve diameter be more than support shaft external diameter and less than etc.
In 2 times of support shaft external diameter, when there is action of ocean current, six-bladed fan can rotate around support shaft and can move along its axis.
Preferably, baffle plate is fixedly mounted in support shaft to avoid interfering between two neighboring six-bladed fan, baffle plate
The distance between be more than flabellum length L and less than or equal to 5 times of flabellum length L.
The utility model has advantages below：
1st, flabellum and sleeve of the present utility model are integral, and are sleeved on the outer surface of support shaft, and installation is simple；
2nd, the utility model fabricates simple and Applied economy, is not subject to corrode or damage；
3rd, the utility model can be according to on-site actual situations, the appropriate quantity for adjusting six-bladed fan and adjacent six-bladed fan
The distance between, reach the effect for suppressing vortex-induced vibration, strong applicability.
Brief description of the drawings
Fig. 1 is the utility model dimensional structure diagram.
Fig. 2 is the utility model overlooking the structure diagram.
Wherein：1st, pipeline；2nd, A-frame；3rd, installation site；4th, support shaft；5th, baffle plate；6th, six-bladed fan；7th, flabellum；
8th, sleeve.
Embodiment
Specific implementation of the present utility model is further described below in conjunction with the accompanying drawings.Obviously, described embodiment is
The utility model part of the embodiment, rather than whole embodiments.It is any to be familiar with sheet based on the embodiment in the utility model
The every other embodiment that those skilled in the art are obtained under the premise of creative work is not made, belongs to this reality
With new protection domain.
The utility model provides a kind of submarine pipeline vortex-induced vibration restraining device, as shown in Figure 1 and Figure 2, by a pair of triangle branch
Frame 2 is fixed on pipeline 1, and each summit of A-frame 2 is nearby provided with installation site 3, passes through the installation position on A-frame 2
Put 3 and angularly fix three support shafts 4 parallel with pipeline 1, tandem arrangement is one or more in the axial direction for each support shaft 4
Six-bladed fan 6, each six-bladed fan 6 include six flabellums 7 and a sleeve 8, and with gear between two neighboring six-bladed fan 6
Plate 5 separates.
A-frame 2 is equilateral triangle, and the length of side of A-frame 2 is more than or equal to 1.74 times of the external diameter of pipeline 1 and is less than
The external diameter of pipeline 1 equal to 5 times, is fixedly mounted between A-frame 2 and pipeline 1.Support shaft 4 is the circle parallel to the axial direction of pipeline 1
The distance of cylinder or cylindrical structure, support shaft 4 and pipeline 1 is more than the width H of flabellum 7 and the width H of flabellum 7 less than or equal to 3 times.Fan
The length L of leaf 7 is more than or equal to 0.03 times of the external diameter of pipeline 1 and is less than or equal to 10 times of the external diameter of pipeline 1, and the width H of flabellum 7 is more than etc.
In 0.03 times of the external diameter of pipeline 1 and it is less than or equal to 4 times of the external diameter of pipeline 1, the thickness S of flabellum 7 is more than or equal to 0.02 times of pipeline 1
External diameter and the external diameter of pipeline 1 less than or equal to 0.5 times, the internal diameter of sleeve 8 are more than the external diameter of support shaft 4 and the branch less than or equal to 2 times
The external diameter of axle 4 is supportted, six-bladed fan 6 can rotate around support shaft 4 and can move along its axis when there is action of ocean current.Baffle plate 5 fixes peace
To avoid interfering between two neighboring six-bladed fan 6 in support shaft 4, the distance between baffle plate 5 is more than the length of flabellum 7
L and the length L of flabellum 7 less than or equal to 5 times.Can be according to on-site actual situations, the appropriate quantity and phase for adjusting six-bladed fan
The distance between adjacent six-bladed fan, reach the effect for suppressing vortex-induced vibration, strong applicability.
Embodiment：
According to the long-term statistics of actual free spanning submarine pipeline and local ocean current, submarine pipeline vortex exciting reasonable in design
Dynamic restraining device basic data, it is known that the external diameter of pipeline 1, the length of side of A-frame 2 are equal to 2.5 times of the external diameter of pipeline 1, A-frame 2
It is fixedly mounted between pipeline 1.Support shaft 4 is the cylindrical structure parallel to the axial direction of pipeline 1, support shaft 4 and distance of pipeline 1 etc.
In 1.3 times of the width H of flabellum 7.The length L of flabellum 7 is equal to the external diameter of pipeline 1, and the width H of flabellum 7 is equal to 0.6 times of the external diameter of pipeline 1, fan
The thickness S of leaf 7 is equal to 0.04 times of the external diameter of pipeline 1, and the internal diameter of sleeve 8 is equal to 1.1 times of the distance between the external diameter of support shaft 4, baffle plate 5
The length L of flabellum 7 equal to 2 times.
During in-site installation, a pair of A-frames 2 are fixed on pipeline 1 first, the distance between A-frame 2 is 10 times
The length L of flabellum 7；Then in each support shaft 4, tandem arranges five six-bladed fans 6 in the axial direction, and each six-bladed fan 6 wraps
Six flabellums 7 and a sleeve 8 are included, and are separated between two neighboring six-bladed fan 6 with baffle plate 5；Finally by A-frame 2
On installation site 3 angularly fix three support shafts 4 parallel with pipeline 1.
After device installs, under action of ocean current, six-bladed fan 6 can rotate and can move along its axis around support shaft 4,
Baffle plate 5 is fixedly mounted in support shaft 4 to avoid interfering between two neighboring six-bladed fan 6.This device is suitable for difference
The change of direction incoming, change surrounding flow field, weaken the formation and development of periodicity whirlpool, so as to realize suppression vortex-induced vibration
Effect.
Claims (5)
- A kind of 1. submarine pipeline vortex-induced vibration restraining device, it is characterised in that：A pair of A-frames (2) are fixed on pipeline (1) On, each summit of A-frame (2) is nearby provided with installation site (3), passes through installation site (3) on A-frame (2) etc. Angle fixes three support shafts (4) parallel with pipeline (1), and tandem arranges one or more to each support shaft (4) in the axial direction Individual six-bladed fan (6), each six-bladed fan (6) include flabellum (7) and sleeve (8), and between two neighboring six-bladed fan (6) Separated with baffle plate (5).
- A kind of 2. submarine pipeline vortex-induced vibration restraining device as claimed in claim 1, it is characterised in that：A-frame (2) is Equilateral triangle, pipeline (1) external diameter of A-frame (2) length of side more than or equal to 1.74 times and the pipeline (1) less than or equal to 5 times External diameter, it is fixedly mounted between A-frame (2) and pipeline (1).
- A kind of 3. submarine pipeline vortex-induced vibration restraining device as claimed in claim 1, it is characterised in that：Support shaft (4) is flat Row in the cylinder or cylindrical structure of pipeline (1) axial direction, the distance of support shaft (4) and pipeline (1) be more than flabellum (7) width H and Flabellum (7) width H less than or equal to 3 times.
- A kind of 4. submarine pipeline vortex-induced vibration restraining device as claimed in claim 1, it is characterised in that：Flabellum (7) length L is big It is more than or equal in pipeline (1) external diameter equal to 0.03 times and pipeline (1) external diameter less than or equal to 10 times, flabellum (7) width H 0.03 times of pipeline (1) external diameter and pipeline (1) external diameter less than or equal to 4 times, flabellum (7) thickness S are more than or equal to 0.02 times Pipeline (1) external diameter and less than or equal to 0.5 times pipeline (1) external diameter, sleeve (8) internal diameter are more than support shaft (4) external diameter and small In support shaft (4) external diameter equal to 2 times, when there is action of ocean current, six-bladed fan (6) can rotate around support shaft (4) and can be along its axle To movement.
- A kind of 5. submarine pipeline vortex-induced vibration restraining device as claimed in claim 1, it is characterised in that：The fixed peace of baffle plate (5) Fanned in support shaft (4) with avoiding the distance between interfering between two neighboring six-bladed fan (6), baffle plate (5) from being more than Leaf (7) length L and flabellum (7) length L less than or equal to 5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720185754.8U CN206625791U (en) | 2017-02-28 | 2017-02-28 | A kind of submarine pipeline vortex-induced vibration restraining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720185754.8U CN206625791U (en) | 2017-02-28 | 2017-02-28 | A kind of submarine pipeline vortex-induced vibration restraining device |
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| Publication Number | Publication Date |
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| CN206625791U true CN206625791U (en) | 2017-11-10 |
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|---|---|---|---|
| CN201720185754.8U Expired - Fee Related CN206625791U (en) | 2017-02-28 | 2017-02-28 | A kind of submarine pipeline vortex-induced vibration restraining device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859492A (en) * | 2017-11-16 | 2018-03-30 | 西南石油大学 | It is a kind of to allocate the vortex-induced vibration suppression device and method for streaming driving swingle rotation |
| CN113529639A (en) * | 2021-07-22 | 2021-10-22 | 西南石油大学 | Vertical pipe vibration suppression device and method for combined rotation of strake and impeller in mesh enclosure |
-
2017
- 2017-02-28 CN CN201720185754.8U patent/CN206625791U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859492A (en) * | 2017-11-16 | 2018-03-30 | 西南石油大学 | It is a kind of to allocate the vortex-induced vibration suppression device and method for streaming driving swingle rotation |
| CN107859492B (en) * | 2017-11-16 | 2019-05-03 | 西南石油大学 | The vortex-induced vibration suppression device and method of driving swingle rotation are streamed in a kind of allotment |
| CN113529639A (en) * | 2021-07-22 | 2021-10-22 | 西南石油大学 | Vertical pipe vibration suppression device and method for combined rotation of strake and impeller in mesh enclosure |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 Termination date: 20180228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |