CN102644446A - Device and method for suppressing vortex-induced vibration of marine vertical pipes and pipelines - Google Patents
Device and method for suppressing vortex-induced vibration of marine vertical pipes and pipelines Download PDFInfo
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- CN102644446A CN102644446A CN2012101282415A CN201210128241A CN102644446A CN 102644446 A CN102644446 A CN 102644446A CN 2012101282415 A CN2012101282415 A CN 2012101282415A CN 201210128241 A CN201210128241 A CN 201210128241A CN 102644446 A CN102644446 A CN 102644446A
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- backplate
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- induced vibration
- vortex
- briquetting
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Abstract
The invention discloses a device for suppressing vortex-induced vibration of marine vertical pipes and pipelines, which comprises a plurality of guard plates, wherein the plurality of guard plates are arranged axially, inner surfaces of all the guard plates are arranged on the same periphery, all the guard plates are arranged in a semi-cylindrical shape, a plurality of helical blades are axially arranged at intervals on outer surfaces of all the guard plates, two groups of pressing blocks are respectively installed on outer surfaces of two guard plates which are located at the semi-cylindrical bottom edge, and bolt holes are arranged on each group of pressing blocks. The invention also discloses a method for suppressing the vortex-induced vibration of marine vertical pipes and pipelines, in the process of installation on marine vertical pipes and pipelines, when a single section of the pipe is installed, two groups of semi-cylindrical structures which are assembled are symmetrically buckled on the pipeline, and bolts are used for connecting and fixing all corresponding pressing blocks respectively. According to the device and the method, the structure is simple, the installation is convenient, the integral stiffness is good, and the vortex-induced vibration of marine vertical pipes and pipelines can be avoided effectively.
Description
Technical field
The invention belongs to offshore oil equipment technology field, be specifically related to a kind of device that suppresses marine riser and pipeline vortex-induced vibration.The invention still further relates to a kind of method of utilizing aforementioned means to suppress marine riser and pipeline vortex-induced vibration.
Background technology
Marine riser and pipeline mainly comprise vertically arranged various pipeline; The person in charge's part that is connected with platform like gathering lines such as seabed oil, gas, main pipeline, attached pressure pipeline and pipeline etc.; Be generally used for transferring product and guiding drainage between ocean platform, satellite well, the seabed manifold; Perhaps be used to carry liquid such as chemical agent and water, its design, installation, laying, maintenance etc. are complicated system engineering.
In marine environment, standpipe and pipeline receive multiple combined factors effects such as ocean current and wave.When ocean current is flowed through its cross section; Can produce the whirlpool of letting out alternately in the pipeline both sides; Cause its receive crossing current to following current to pulsating flow muscle power, pipeline is vibrated, when its vibration frequency during near the pipeline intrinsic frequency; Cause pipeline generation vortex-induced vibration most probably, thereby cause the pipeline fatigue damage.At present, the direct and pipeline external cylindrical surface rigidity welding of restraining device is swashed in conventional whirlpool, causes the pipeline transportation and trouble is installed, and its construction operation is difficult, also causes corrosive pipeline to destroy easily.
Summary of the invention
The purpose of this invention is to provide a kind of device that suppresses marine riser and pipeline vortex-induced vibration; Solved under the prior art condition; Direct and the pipeline external cylindrical surface rigidity welding of restraining device is swashed in the whirlpool; Cause the pipeline transportation and trouble is installed, its construction operation difficulty also causes corrosive pipeline to destroy problem easily.
Another object of the present invention provides a kind of method of utilizing aforementioned means to suppress marine riser and pipeline vortex-induced vibration.
The technical scheme that the present invention adopted is, a kind of device that suppresses marine riser and pipeline vortex-induced vibration comprises that coastal foreign standpipe and pipeline external surface axially are provided with backplate, and the external surface upper edge axially spaced-apart of backplate is provided with a plurality of helical blades.
Another technical scheme that the present invention adopted is, a kind of method of utilizing above-mentioned device to suppress marine riser and pipeline vortex-induced vibration is implemented according to following steps:
In the installation process on marine riser and pipeline; When the single-unit pipe is installed; Assemble the two groups device symmetries that suppress marine riser and pipeline vortex-induced vibration are buckled on the pipeline, then respectively in the bolt hole of the corresponding briquetting of each group erection bolt connect fixing.
The invention has the beneficial effects as follows, simple in structure, compactness, in light weight, easy for installation, and also integral rigidity is good, can effectively avoid standpipe and pipeline to produce vortex-induced vibration, has also improved this Unit Installation operating efficiency simultaneously.Adopt the symmetrical frame structure, manufacturing processing technic is simple, and cost of production is low, is widely used in ocean engineering.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the guard mode sketch map that the inventive method utilizes two covers restraining device unit shown in Figure 1 to fit together.
Among the figure, 1. helical blade, 2. backing plate, 3. backplate, 4. briquetting, 5. bolt hole, 6. bolt.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is elaborated.
Like Fig. 1, shown in Figure 2; The apparatus structure of inhibition marine riser of the present invention and pipeline vortex-induced vibration is; Comprise that coastal foreign standpipe and pipeline axial are provided with at least one backplate 3; The external surface upper edge axially spaced-apart of all backplates 3 is provided with a plurality of spiral backing plates 2, and the external surface of every group of backing plate 2 is installed with a helical blade 1; Also can omit backing plate 2, helical blade 1 direct interval vertically spiral is installed in the external surface of all backplates 3.When backplate 3 is two when above; The inner surface of all backplates 3 (entad face) is arranged on the same periphery; And 3 one-tenth of all backplates are half-cylindrical to be arranged, and respectively is set with two groups of briquettings 4 at the external surface of two backplates 3 that are positioned at half-cylindrical base (cross section at diameter place), and these two groups of briquettings 4 are provided with certain spacing according to the longitudinal length of backplate 3; Have at least one bolt hole 5 on every group of briquetting 4, above-mentioned structure is called one group of restraining device unit.
When two groups of above-mentioned restraining device unit fasten relatively; Four groups of briquettings 4 of diameter two halves are corresponding one by one; Be installed in the bolt hole 5 through bolt 6, four groups of briquettings 4 are fixedly connected respectively, realize the complete preservation of two groups of restraining device unit marine riser and pipeline.
Fig. 1 and embodiment illustrated in fig. 2 in, backplate 3 is a plurality of strip structures, described helical blade 1, backing plate 2, backplate 3 all are at least two; Bolt hole 5 on every group of briquetting 4 is at least one; Helical blade 1, backing plate 2, backplate 3 are three groups of quantity, and the bolt hole 5 on each briquetting 4 is two, in the actual engineering; The sea situation parameter is different with size according to using, and it is individual that helical blade 1, backing plate 2, backplate 3 can be designed to arbitrary integer respectively.
When backplate 3 was semi-cylindrical shaped, the restraining device unit comprised: backplate 3 is one, and helical blade 1, backing plate 2 all are at least two, and the bolt hole 5 on every group of briquetting 4 is at least one.
When backplate 3 was integral cylindrical, the restraining device unit comprised: backplate 3 is one, and helical blade 1, backing plate 2 all are at least two, and the bolt hole 5 on every group of briquetting 4 is at least one.
The operating principle of apparatus of the present invention is: as the cylindrical frame structure; Be distributed with a plurality of helical blades above that; This device is installed on the external cylindrical surface of underwater pipeline, can changes the pipeline direction in seawater flow field on every side, thereby avoid standpipe and pipeline to produce vortex-induced vibration.
The method of inhibition marine riser of the present invention and pipeline vortex-induced vibration is utilized the above-mentioned inhibition marine riser and the device of pipeline vortex-induced vibration, implements according to following steps:
Step 1) is in the processing assembling process; Earlier three backplates 3 are welded to form half-cylindrical framework with three backing plates 2; Then three helical blades 1 are welded on respectively on three backing plates 2; Be positioned at two backplate 3 external surfaces symmetry welding four briquettings 4 (two groups of every sides) of this semicolumn framework simultaneously, then the assembling of restraining device unit machines.
Step 2) in marine riser and pipeline process are installed; When the single-unit pipe is installed; Above-mentioned two groups of restraining device unit symmetries are buckled on marine riser and the pipeline, then respectively in the bolt hole 5 of the corresponding briquetting 4 of each group erection bolt 6 connect fixing, then installation.By that analogy, the restraining device unit connects from beginning to end or connects at interval up and down, realizes along pipeline Global Macros or segmentation focused protection longitudinally.
When adopting semi-cylindrical shaped backplate 3, helical blade 1 perhaps comprises that also backing plate 2 directly is fixed on backplate 3 external surfaces, and the method for using of restraining device unit is consistent with the restraining device block construction that adopts strip backplate 3.
When adopting integral cylindrical backplate 3; Helical blade 1 perhaps comprises that also backing plate 2 directly is fixed on backplate 3 external surfaces, is provided with at least one briquetting 4 at backplate 3 axial two ends, is provided with a bolt hole 5 on the briquetting 4 at least; During use; The restraining device unit directly is sleeved on marine riser and pipe surface, and it is fixing to join end to end through bolt 6 again, gets final product.
Claims (10)
1. device that suppresses marine riser and pipeline vortex-induced vibration, its characteristics are: comprise that coastal foreign standpipe and pipeline external surface axially are provided with backplate (3), the external surface upper edge axially spaced-apart of backplate (3) is provided with a plurality of helical blades (1).
2. the device of inhibition marine riser according to claim 1 and pipeline vortex-induced vibration is characterized in that: described backplate (3) is the strip structure, or is integral cylindrical or semi-cylindrical shaped; When backplate (3) was the strip structure, helical blade (1), backplate (3) all were at least two.
3. the device of inhibition marine riser according to claim 2 and pipeline vortex-induced vibration; It is characterized in that: the external surface upper edge axially spaced-apart of described backplate (3) is provided with a plurality of spiral backing plates (2), and the external surface of every group of backing plate (2) is installed with a helical blade (1).
4. according to the device of claim 2 or 3 described inhibition marine risers and pipeline vortex-induced vibration; It is characterized in that: when described backplate (3) is strip structure or semi-cylindrical shaped; At the backplate that is positioned at half-cylindrical diameter base (3) external surface two groups of briquettings (4) are installed respectively, have bolt hole (5) on every group of briquetting (4).
5. according to the device of claim 2 or 3 described inhibition marine risers and pipeline vortex-induced vibration; It is characterized in that: when backplate (3) is integral cylindrical; Axially be provided with at least one briquetting (4) in two ends at backplate (3), be provided with a bolt hole (5) on the briquetting (4) at least.
6. method of utilizing the described device of claim 1 to suppress marine riser and pipeline vortex-induced vibration, its characteristics are, implement according to following steps:
In the installation process on marine riser and pipeline; When the single-unit pipe is installed; Assemble the two groups device symmetries that suppress marine riser and pipeline vortex-induced vibration are buckled on the pipeline, then respectively in the bolt hole (5) of the corresponding briquetting (4) of each group erection bolt (6) connect and fix.
7. the device of inhibition marine riser according to claim 6 and pipeline vortex-induced vibration is characterized in that: described backplate (3) is the strip structure, or is integral cylindrical or semi-cylindrical shaped; When backplate (3) was the strip structure, helical blade (1), backplate (3) all were at least two.
8. the device of inhibition marine riser according to claim 7 and pipeline vortex-induced vibration; It is characterized in that: the external surface upper edge axially spaced-apart of described backplate (3) is provided with a plurality of spiral backing plates (2), and the external surface of every group of backing plate (2) is installed with a helical blade (1).
9. according to the device of claim 6 or 7 described inhibition marine risers and pipeline vortex-induced vibration; It is characterized in that: when described backplate (3) is strip structure or semi-cylindrical shaped; At the backplate that is positioned at half-cylindrical diameter base (3) external surface two groups of briquettings (4) are installed respectively, have bolt hole (5) on every group of briquetting (4).
10. according to the device of claim 6 or 7 described inhibition marine risers and pipeline vortex-induced vibration; It is characterized in that: when backplate (3) is integral cylindrical; Axially be provided with at least one briquetting (4) in two ends at backplate (3), be provided with a bolt hole (5) on the briquetting (4) at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101282415A CN102644446A (en) | 2012-04-27 | 2012-04-27 | Device and method for suppressing vortex-induced vibration of marine vertical pipes and pipelines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101282415A CN102644446A (en) | 2012-04-27 | 2012-04-27 | Device and method for suppressing vortex-induced vibration of marine vertical pipes and pipelines |
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| CN102644446A true CN102644446A (en) | 2012-08-22 |
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| CN2012101282415A Pending CN102644446A (en) | 2012-04-27 | 2012-04-27 | Device and method for suppressing vortex-induced vibration of marine vertical pipes and pipelines |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485732A (en) * | 2013-10-15 | 2014-01-01 | 西南石油大学 | Device and method for inhibiting vortex-induced vibration of spiral strake with rotating blade |
| CN106930705A (en) * | 2016-04-01 | 2017-07-07 | 山东科技大学 | A kind of standpipe vortex-induced vibration Omnidirectional rotation turbine flow-disturbing vibration-repressing device |
| CN106930706A (en) * | 2016-05-13 | 2017-07-07 | 山东科技大学 | A kind of deep sea vertical pipe jetting type active vibration-repressing device |
| CN110792658A (en) * | 2019-10-29 | 2020-02-14 | 江苏科技大学 | Marine magnetic suspension vortex-induced vibration suppression device |
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| US6347911B1 (en) * | 1996-06-11 | 2002-02-19 | Slickbar Products Corp. | Vortex shedding strake wraps for submerged pilings and pipes |
| US6695540B1 (en) * | 2000-11-14 | 2004-02-24 | Weldon Taquino | Vortex induced vibration suppression device and method |
| JP2005238866A (en) * | 2004-02-24 | 2005-09-08 | Mitsubishi Heavy Ind Ltd | Swinging reduction device of cylindrical structure |
| CN101387188A (en) * | 2008-11-04 | 2009-03-18 | 中国海洋大学 | Suppressing vibration method for marine riser vortex-induced vibration and suppressing vibration apparatus thereof |
| CN102121356A (en) * | 2011-01-12 | 2011-07-13 | 中国海洋石油总公司 | Helical strake vortex induced vibration inhibiting device |
| CN102226380A (en) * | 2011-06-20 | 2011-10-26 | 天津大学 | Method for inhibiting vortex-induced vibration of marine riser |
| US20110280667A1 (en) * | 2008-11-13 | 2011-11-17 | Jean-Pierre Branchut | Hybrid riser towers and fabrication thereof |
| CN202100212U (en) * | 2010-12-29 | 2012-01-04 | 中国海洋石油总公司 | Twill double-coupling blade type vortex-induced vibration abatement device for ocean stand pipe |
| CN202718633U (en) * | 2012-04-27 | 2013-02-06 | 宝鸡石油机械有限责任公司 | Device capable of inhibiting vortex-induced vibration of marine riser and marine pipeline |
-
2012
- 2012-04-27 CN CN2012101282415A patent/CN102644446A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6347911B1 (en) * | 1996-06-11 | 2002-02-19 | Slickbar Products Corp. | Vortex shedding strake wraps for submerged pilings and pipes |
| US6695540B1 (en) * | 2000-11-14 | 2004-02-24 | Weldon Taquino | Vortex induced vibration suppression device and method |
| JP2005238866A (en) * | 2004-02-24 | 2005-09-08 | Mitsubishi Heavy Ind Ltd | Swinging reduction device of cylindrical structure |
| CN101387188A (en) * | 2008-11-04 | 2009-03-18 | 中国海洋大学 | Suppressing vibration method for marine riser vortex-induced vibration and suppressing vibration apparatus thereof |
| US20110280667A1 (en) * | 2008-11-13 | 2011-11-17 | Jean-Pierre Branchut | Hybrid riser towers and fabrication thereof |
| CN202100212U (en) * | 2010-12-29 | 2012-01-04 | 中国海洋石油总公司 | Twill double-coupling blade type vortex-induced vibration abatement device for ocean stand pipe |
| CN102121356A (en) * | 2011-01-12 | 2011-07-13 | 中国海洋石油总公司 | Helical strake vortex induced vibration inhibiting device |
| CN102226380A (en) * | 2011-06-20 | 2011-10-26 | 天津大学 | Method for inhibiting vortex-induced vibration of marine riser |
| CN202718633U (en) * | 2012-04-27 | 2013-02-06 | 宝鸡石油机械有限责任公司 | Device capable of inhibiting vortex-induced vibration of marine riser and marine pipeline |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485732A (en) * | 2013-10-15 | 2014-01-01 | 西南石油大学 | Device and method for inhibiting vortex-induced vibration of spiral strake with rotating blade |
| CN103485732B (en) * | 2013-10-15 | 2016-04-06 | 西南石油大学 | A kind of helical strake vortex induced vibration inhibiting device with rotating vane and method |
| CN106930705A (en) * | 2016-04-01 | 2017-07-07 | 山东科技大学 | A kind of standpipe vortex-induced vibration Omnidirectional rotation turbine flow-disturbing vibration-repressing device |
| CN106930706A (en) * | 2016-05-13 | 2017-07-07 | 山东科技大学 | A kind of deep sea vertical pipe jetting type active vibration-repressing device |
| CN110792658A (en) * | 2019-10-29 | 2020-02-14 | 江苏科技大学 | Marine magnetic suspension vortex-induced vibration suppression device |
| CN110792658B (en) * | 2019-10-29 | 2021-07-06 | 江苏科技大学 | Marine magnetic suspension vortex-induced vibration suppression device |
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Application publication date: 20120822 |