CN208169802U - A kind of interim suspended span vortex-induced vibration suppression device of submarine pipeline - Google Patents
A kind of interim suspended span vortex-induced vibration suppression device of submarine pipeline Download PDFInfo
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- CN208169802U CN208169802U CN201820673454.9U CN201820673454U CN208169802U CN 208169802 U CN208169802 U CN 208169802U CN 201820673454 U CN201820673454 U CN 201820673454U CN 208169802 U CN208169802 U CN 208169802U
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- induced vibration
- suspended span
- submarine pipeline
- cowling panel
- vibration suppression
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Abstract
The utility model discloses a kind of interim suspended span vortex-induced vibration suppression devices of submarine pipeline, and including the symmetrically arranged cowling panel for being fitted in the rectification board mount of pipeline external surface and connecting with rectification board mount, rectification plate surface is provided with protrusion.The utility model is on the basis of analysing in depth submarine pipeline vortex-induced vibration formation mechenism, in conjunction with the actual conditions of airbreak interim in bottom of shallow sea pipe-laying process, cause the submarine pipeline pipeline section of vibration frequency close to water flow for the intrinsic frequency judged during checking, the symmetrical cowling panel for being easily installed and recycling, be able to satisfy water flow variation is set, the angle formed from limitation whirlpool, reduces interim suspended span pipeline vortex-induced vibration risk.The utility model is suitable for the suspended span vortex-induced vibration protection of sea-bottom oil-gas pipeline, and suspended span Pipe installing space is not only utilized, improves installation, dismounting speed, copes with water flow variation also by the mode that symmetrical cowling panel is arranged, and has achieved the effect that safety, economy.
Description
Technical field
The utility model relates to a kind of interim suspended span vortex-induced vibration suppression devices of submarine pipeline.
Background technique
In marine oil and gas production, submarine pipeline is the important channel of transfer oil natural gas.In the laying of submarine pipeline
In the process, due to sea bed irregularities, portions is certainly existed and are in suspended span state；Once suspended span length is more than critical length
Degree, submarine pipeline will likely occur to flow the vortex-induced vibration induced due to pipeline water flow, and cause to resonate, threat tube peace
Entirely.
Currently, the free suspended span solving methods of the problems of submarine pipeline is mainly pre- smooth using routing and sets in process of deployment
Set the forms such as temporary support, cardinal principle be to increase suspended span pipeline intrinsic frequency by way of reducing suspended span length, but
Such methods need that engineer operation resource is called to carry out underwater operation, and construction cost is higher；In addition one kind slows down submarine pipeline certainly
By the thinking of suspended span be by rectifier equipment inhibit whirlpool generate, but at present for the interim suspended span of submarine pipeline correlation technique or
There is higher cost in varying degrees, not can be recycled, the problems such as water flow variation can not be coped in equipment.
Summary of the invention
The shortcomings that the utility model is overcome in the prior art provides a kind of interim suspended span vortex-induced vibration suppression of submarine pipeline
Device processed, the free suspended span of submarine pipeline to reduce laying stage interim airbreak at low cost as far as possible induce vortex-induced vibration wind
Danger.
The technical solution of the utility model is：A kind of interim suspended span vortex-induced vibration suppression device of submarine pipeline, including fitting
Pipeline external surface rectification board mount and with the symmetrically arranged cowling panel that connect of rectification board mount, be arranged in rectification plate surface
There is protrusion.
Compared with prior art, the utility model has the advantages that：
The utility model is on the basis of analysing in depth submarine pipeline vortex-induced vibration formation mechenism, in conjunction with bottom of shallow sea pipeline
The actual conditions of interim airbreak in process of deployment cause vibration frequency close to water flow for the intrinsic frequency judged during checking
The submarine pipeline pipeline section of rate, setting are easily installed and recycle, are able to satisfy the symmetrical cowling panel of water flow variation, are formed from limitation whirlpool
Angle set out, reduce interim suspended span pipeline vortex-induced vibration risk.The utility model is suitable for the suspended span whirlpool of sea-bottom oil-gas pipeline
Excited vibration protection is not only utilized suspended span Pipe installing space, improves installation, dismounting speed, also by the symmetrical cowling panel of setting
Mode cope with water flow variation, achieved the effect that safety, economic, specific manifestation is as follows：
(1) system safety：
The raised locked grooves of the prefabricated several connection cowling panels of cowling panel rack outer surface, are destroyed before can be used for installing cowling panel
Boundary layer is stablized when water flow bypasses submarine pipeline, inhibits whirlpool to generate to a certain extent；It, will after cowling panel connection rectification board mount
The position that whirlpool is likely to form outside Near Pipelines by moving, and the relatively small angle that crosses of cowling panel upper and lower sides also further suppresses
Whirlpool generation；Cowling panel uses symmetrically arranged form, and whirlpool when can cope with flow direction variation, which is swashed, to be inhibited.
(2) easy for installation
Rectification board mount is installed on submarine pipeline by symmetrical semicircular arc-shaped plastic stent, and cowling panel passes through its outside
It latches and is connect with the locked groove of rectification board mount, Rapid Combination, disassembly can be achieved.
(3) it can be recycled
After submarine pipeline will carry out before ditching down tube, cowling panel, rectification board mount and limit fixed ring can be dismantled, be returned
It receives, can be directly used for the operating condition of subsequent same size, or be used for other small size operating conditions after being retrofited.
Detailed description of the invention
The utility model will illustrate by example and with reference to the appended drawing, wherein：
Fig. 1 is a kind of side schematic view of the interim suspended span vortex-induced vibration suppression device of submarine pipeline of the utility model；
Fig. 2 is a kind of floor map of the interim suspended span vortex-induced vibration suppression device of submarine pipeline of the utility model；
Fig. 3 is a kind of rectification board mount of the interim suspended span vortex-induced vibration suppression device of submarine pipeline of the utility model and whole
Flowing plate detail drawing.
Specific embodiment
A kind of interim suspended span vortex-induced vibration suppression device of submarine pipeline, as shown in Figure 1, as shown in Figure 1 to Figure 3, including：It is whole
Flowing plate bracket 1, rectification board mount 2, inner cushion layer 3, cowling panel 4, limit fixed ring 5, cowling panel stent outer latch 6, top of support
Portion's bolt hole 7, frame bottom bolt hole 8, frame upper bolt hole 9, cowling panel inside locked groove 10, cowling panel upper bolt hole 11
With cowling panel surface bulge 12.
Wherein：
Rectify board mount 1, rectification board mount 2, inner cushion layer 3, cowling panel stent outer lock 6, cradle top bolt hole 7,
Frame bottom bolt hole 8, frame upper bolt hole 9 form cowling panel support system, are responsible for fixed rectification board mount in Submarine Pipeline
On road, basis also is provided for cowling panel installation.
Specifically,
1) when rectifying board mount installation, 2 pieces of semicircular arc-shaped rectification board mounts 1 and 2 pass through cradle top bolt hole 7, branch
Frame bottom bolts hole 8 connects, and is fixed on submarine pipeline, is inserted into inner cushion layer 3 on the inside of bracket between submarine pipeline outer surface, plays
It adjusts tightness and increases frictional force effect.
2) before not installing cowling panel, rectification board mount 1 and the outer side lock 6 for rectifying board mount 2 play and upset water flow side
The effect of interlayer can form reducing whirlpool to a certain degree and vibration influences.
Wherein：
Cowling panel support system and cowling panel 4 form cowling panel system, are responsible for during submarine pipeline interim suspended span, press down
Whirlpool processed generates, and alleviates vortex-induced vibration effect.
Specifically,
1) it when cowling panel 4 is installed, is connect, is played just with cowling panel stent outer lock 6 by locked groove 10 on the inside of cowling panel
Fixed function is walked, while using cowling panel upper bolt hole 11 and cowling panel frame upper bolt hole 9 is bolted, with further
Fixed cowling panel, forms cowling panel system.
2) it to prevent cowling panel from axial displacement occurring in the process of running, can be installed in cowling panel system axial end symmetrical
Semicircular ring is bolted using 12 directions and 6 directions.
3) when system is run, the cowling panel 4 of direction of flow plays the role of being pre-separated water flow, passes through its surface bulge
12 manufacture surface turbulences, to go the cowling panel in stream direction to provide continuous turbulent flow input.Direction cowling panel 4 is flowed through in water flow
When, the equally manufacture surface layer turbulent flow of surface bulge 12 weakens tail portion whirlpool formation condition since cowling panel is gradually closed.
4) when submarine pipeline plan is embedded by rear ditching, limit fixed ring 5, cowling panel 4 and cowling panel are successively freed
Bracket 1/2, is recycled.
The utility model includes pipeline body, rectification board mount, symmetrically arranged cowling panel and cowling panel boundary fixed ring；
The pipeline body includes submarine pipeline, concrete weighted coating etc.；The rectification board mount includes two panels outer surface with several
The semicircular arc plastic stent of lock, two plate racks are attached by the bolt in 12 directions and 6 directions；It is described symmetrically to set
The cowling panel set includes 2 pieces of solid cowling panels along the distribution of pipeline section central symmetry, and the big head of cowling panel have several locked grooves,
With the cowling panel bracket snapping；Cowling panel boundary fixed ring is adding for cowling panel installation site end (lock extracting side)
Thick ring.
The rectification board mount is symmetrical semi-circular ring, is bolted using 12 directions and 6 directions；The cowling panel branch
Frame inner surface material is rubber, fits closely pipeline external surface；The cowling panel rack outer surface is the lock of several prefabricated protrusions
Button, catch surface have circular hole, play a role in the drainage, and seawater flow meter surface layer is also upset when not installing cowling panel.
The cowling panel be plastic material, bottom be it is arc-shaped, top be ellipse.
The cowling panel is to be symmetrically installed, and axis is 3 points and 9 directions, plays sluggish flow separation and pipeline before pipeline
Water flow inhibits the effect of whirlpool afterwards, and when also flow direction being overcome to change, the shortcomings that cowling panel fails is installed in unilateral side.
The cowling panel, to the prefabricated minor radius surface salient point of tail end, plays at caudal part 1/3 and destroys steady flow side
The effect of interlayer, smaller tail end whirlpool are formed.
The cowling panel limit fixed ring is symmetrical semi-circular ring, is bolted using 12 directions and 6 directions, annulus is thick
It spends moderate, prevents cowling panel from sliding axially in operation along pipeline.
The utility model is by further alleviating Submarine Pipeline to symmetrical cowling panel is installed on interim hanging submarine pipeline
Vortex-induced vibration problem when flow direction changes at road, described device installation is simple, low in cost, can be recycled and reuses, and exempts from
The expense that temporary pipeline suspended span is overcome using additional support is gone.
Claims (10)
1. a kind of interim suspended span vortex-induced vibration suppression device of submarine pipeline, it is characterised in that：Including being fitted in pipeline external surface
Rectification board mount and the symmetrically arranged cowling panel connecting with rectification board mount are provided with protrusion in rectification plate surface.
2. the interim suspended span vortex-induced vibration suppression device of a kind of submarine pipeline according to claim 1, it is characterised in that：It is described
Rectification board mount is two pieces of symmetrical semi-circular rings, is bolted using 12 directions and 6 directions.
3. the interim suspended span vortex-induced vibration suppression device of a kind of submarine pipeline according to claim 2, it is characterised in that：It is described
Cowling panel is to be symmetrically installed, and axis is 3 points and 9 directions.
4. the interim suspended span vortex-induced vibration suppression device of a kind of submarine pipeline according to claim 1, it is characterised in that：It is described
Protrusion setting is in cowling panel to end-position at caudal part 1/3.
5. the interim suspended span vortex-induced vibration suppression device of a kind of submarine pipeline according to claim 1, it is characterised in that：Whole
Lock is arranged in the outside of flowing plate bracket, with the locked groove snapping being arranged on the inside of cowling panel.
6. the interim suspended span vortex-induced vibration suppression device of a kind of submarine pipeline according to claim 5, it is characterised in that：It is described
Catch surface has circular hole.
7. the interim suspended span vortex-induced vibration suppression device of a kind of submarine pipeline according to claim 1, it is characterised in that：It is described
Cowling panel stent inner surface material is rubber.
8. the interim suspended span vortex-induced vibration suppression device of a kind of submarine pipeline according to claim 1, it is characterised in that：Whole
Inner cushion layer is set between pipeline external surface on the inside of flowing plate bracket.
9. the interim suspended span vortex-induced vibration suppression device of a kind of submarine pipeline according to claim 1, it is characterised in that：Whole
Flowing plate installation site end setting limit fixed ring.
10. the interim suspended span vortex-induced vibration suppression device of a kind of submarine pipeline according to claim 9, it is characterised in that：Institute
Stating limit fixed ring is symmetrical semi-circular ring, is bolted using 12 directions and 6 directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820673454.9U CN208169802U (en) | 2018-05-07 | 2018-05-07 | A kind of interim suspended span vortex-induced vibration suppression device of submarine pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820673454.9U CN208169802U (en) | 2018-05-07 | 2018-05-07 | A kind of interim suspended span vortex-induced vibration suppression device of submarine pipeline |
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| Publication Number | Publication Date |
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| CN208169802U true CN208169802U (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820673454.9U Active CN208169802U (en) | 2018-05-07 | 2018-05-07 | A kind of interim suspended span vortex-induced vibration suppression device of submarine pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652952A (en) * | 2021-08-26 | 2021-11-16 | 深圳市鑫神科技开发有限公司 | Vortex elimination method and vortex elimination device |
-
2018
- 2018-05-07 CN CN201820673454.9U patent/CN208169802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652952A (en) * | 2021-08-26 | 2021-11-16 | 深圳市鑫神科技开发有限公司 | Vortex elimination method and vortex elimination device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210220 Address after: No. 6, Sichuan hi tech Zone, sublime Road, Chengdu, Sichuan Patentee after: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: No. 6, Sichuan hi tech Zone, sublime Road, Chengdu, Sichuan Patentee before: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. |
|
| TR01 | Transfer of patent right |