CN106869821A - A kind of self adaptation vortex-induced vibration suppression device with assistant shape ribbon - Google Patents
A kind of self adaptation vortex-induced vibration suppression device with assistant shape ribbon Download PDFInfo
- Publication number
- CN106869821A CN106869821A CN201710037622.5A CN201710037622A CN106869821A CN 106869821 A CN106869821 A CN 106869821A CN 201710037622 A CN201710037622 A CN 201710037622A CN 106869821 A CN106869821 A CN 106869821A
- Authority
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- China
- Prior art keywords
- sliding sleeve
- spoiler
- assistant
- foraminous shield
- shape ribbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 230000001629 suppression Effects 0.000 title claims abstract description 16
- 230000006978 adaptation Effects 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011664 nicotinic acid Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
A kind of self adaptation vortex-induced vibration suppression device with assistant shape ribbon, it includes sliding sleeve, foraminous shield, spoiler and the part of assistant shape ribbon four.Wherein sliding sleeve is bolted and is fastened on outside marine riser；Foraminous shield is sleeved on sliding sleeve by positioning core axle；One end of spoiler is connected with foraminous shield, and the other end is provided with assistant shape ribbon.Foraminous shield may be guided come flow point dissipate；Spoiler is free to rotate with foraminous shield, adapts to different directions of flow；Assistant shape ribbon sustainable waving under action of ocean current suppresses the formation and development of whirlpool.Simple structure of the present invention, can guide and carry out the service life that flow point dissipates, is difficult corrosion failure, can reuse and extend marine riser.
Description
Technical field
The invention belongs to field of ocean engineering, more particularly to a kind of restraining device for suppressing vortex-induced vibration.
Background technology
In the recovery process in deep water hydrocarbon field, marine riser connecting platform and underwater well head are drilling fluid and stratum
Fluid provides escape way, and the reliability that it is on active service is significant for the safe operation of oil gas drilling.Marine riser
Local environment is severe, and stressing conditions are complicated.When ocean current flows through marine riser, whirlpool will be formed at marine riser rear, whirlpool is in shape
Into with come off during change the ocean current velocity flow profile at marine riser rear, so as to induce the vortex-induced vibration of marine riser.Work as whirlpool
When vortex shedding frequency is close or equal to marine riser intrinsic frequency, i.e., can trigger resonance, accelerate the fatigue rupture of marine riser.Marine riser
Once destroying, can not only cause marine serious accident, cause huge economic loss, marine environment will also be caused
Catastrophic destruction.
The content of the invention
It is an object of the invention to provide a kind of simple structure, can guide and carry out flow point and dissipate, be difficult corrosion failure, Ke Yichong
The multiple self adaptation vortex-induced vibration suppression device with assistant shape ribbon for using.
According to bionic principle, birds assistant is copied, be assistant shape by the ribbon profile design in vortex-induced vibration suppression device.
The present invention includes sliding sleeve, foraminous shield, spoiler and the part of assistant shape ribbon four, and wherein sliding sleeve is bolted
It is fastened on marine riser, foraminous shield is sleeved on sliding sleeve by positioning core axle, one end of spoiler is connected with foraminous shield, the other end
It is provided with assistant shape ribbon；The sliding sleeve is made up of two identical alloy in lightweight semicircular cylinders, in its outer surface in axis arrangement
In lower three sizes identical sliding sleeve boss, manhole A is provided with vertically on its upper and lower two sliding sleeve boss, for installing limit
Position screw, the two ends of three sliding sleeve boss semicircular cylinders are tangentially equipped with counterbore, bolt hole are provided with counterbore, and sliding sleeve passes through
Bolt connection is fastened on marine riser；The foraminous shield is made up of two identical plastics semicircular cylinders, which is provided with some uniform
The size identical square opening of distribution, size identical foraminous shield boss is respectively equipped with its inner surface upper and lower ends, to reduce
The contact area of foraminous shield and sliding sleeve；The junction indention of two semicircular cylinders of foraminous shield, the end of each sawtooth is equipped with
Manhole B；The spoiler is approximately rectangle, and using plastic material, the end face of its one end is provided with groove, in groove both sides
Some rivet holes are equidistantly provided with plate face, its other end is provided with multiple sawtooth, the end of each sawtooth is equipped with manhole
C, positioning core axle may pass through the manhole B of the foraminous shield and manhole C of spoiler, and foraminous shield and spoiler are connected into one
Rise, positioning core axle is elongated metallic rod；The assistant shape ribbon is quality of rubber materials, and its one end profile is assistant shape, and the other end leads to
Rivet is crossed to be fixed in spoiler groove.
When using, sliding sleeve is bolted the correct position for being fastened on the marine riser equipped with circular buoyancy block first
On, then foraminous shield is sleeved on sliding sleeve, the both sides of foraminous shield are docked with spoiler respectively, by the circle on sliding sleeve boss
Enter positioning core axle under through hole A, make positioning core axle through the manhole B of the foraminous shield and manhole C of spoiler, by foraminous shield
Linked together with spoiler, then assistant shape ribbon is arranged in spoiler groove by rivet；As stated above will again
Another many borehole jack, spoiler and assistant shape ribbon are sleeved on sliding sleeve, and stop screw finally is arranged on into upper and lower two sliding sleeves
In manhole on boss, the upper and lower play of positioning core axle is prevented.
When ocean current flow direction has angle with spoiler, ocean current flows through marine riser and impulsive force can be produced on spoiler, makes
Obtain spoiler and drive assistant shape ribbon unitary rotation, meanwhile, foraminous shield can occur fine rotation, treat that assistant shape ribbon is located at ocean current
Direction downstream rear spoiler reaches balance.After spoiler is balanced, assistant shape ribbon still can constantly wave under action of ocean current.Every
The whirlpool at water pipe rear is first subjected to the centrifugation of spoiler, it is impossible to enough fully developed, is then subjected to the assistant for persistently waving
The destruction of shape ribbon, suppresses the formation and development of whirlpool.Under the collective effect of spoiler and assistant shape ribbon, marine riser
The whirlpool at rear cannot fully develop, it is achieved thereby that the suppression of vortex-induced vibration.
The present invention has advantages below compared with prior art：
1st, by the rotation of foraminous shield and spoiler, assistant shape ribbon is adapted to current direction automatically, remain at sea
Stream direction downstream.
2nd, assistant shape ribbon is quality of rubber materials, and the ability with self adaptation deformation can constantly wave under action of ocean current, press down
The formation of whirlpool processed and development, so as to suppress marine riser vortex-induced vibration, extend the service life of marine riser.
3rd, foraminous shield can guide come flow point dissipate.
4th, foraminous shield and spoiler are plastic material, not perishable and destruction, can reuse, or marine riser
Certain buoyancy is provided.
Brief description of the drawings
Fig. 1 is structure schematic diagram of the invention；
Fig. 2 is the simplified schematic diagram of sliding sleeve of the present invention；
Fig. 3 is the simplified schematic diagram of foraminous shield of the present invention；
Fig. 4 is the simplified schematic diagram of spoiler of the present invention；
Fig. 5 is that assistant shape ribbon of the present invention adapts to current direction schematic diagram automatically；
Fig. 6 is application schematic diagram of the invention.
In figure：1- marine risers, 2- sliding sleeves boss, 3- counterbores, 4- bolts, 5- foraminous shields, the spacing spiral shells of 6- manholes A, 7-
Nail, 8- assistant shapes ribbon, 9- rivets, 10- spoilers, 11- sliding sleeves, 12- foraminous shields boss, 13- manhole B, 14- groove,
15- rivet holes, 16- manhole C, 17- drilling platforms, 18- vortex-induced vibration suppression devices.
Specific embodiment
Specific implementation of the invention is further described below in conjunction with the accompanying drawings.
In the self adaptation vortex-induced vibration suppression device simplified schematic diagram with assistant shape ribbon shown in Fig. 1, sliding sleeve 11 passes through
The connection of bolt 4 is fastened on outside marine riser, and foraminous shield 5 is sleeved on sliding sleeve by positioning core axle；One end of spoiler 10 is by fixed
Position mandrel is connected with foraminous shield 5, and the other end is connected by rivet 9 with assistant shape ribbon 8.
As shown in Fig. 2 sliding sleeve 11 is made up of two identical alloy in lightweight semicircular cylinders, in its outer surface in axis arrangement
In lower three sizes identical sliding sleeve boss 2, manhole A6 is provided with vertically on its upper and lower two sliding sleeve boss 2, for pacifying
Dress stop screw 7, the two ends of three semicircular cylinders of sliding sleeve boss 2 are tangentially equipped with counterbore 3, counterbore 3 and are provided with bolt hole,
Sliding sleeve 11 is connected by bolt 4 and is fastened on marine riser；
As shown in figure 3, foraminous shield 5 is made up of two identical plastics semicircular cylinders, which is provided with some equally distributed big
Small identical square opening, and size identical foraminous shield boss 12 is provided with its inner surface upper and lower ends, with reduce foraminous shield 5 with
The contact area of sliding sleeve 11；The junction indention of 5 two semicircular cylinders of foraminous shield, the end of each sawtooth is equipped with circular leading to
Hole B13；
As shown in figure 4, spoiler 10 is approximately rectangle, using plastic material, the end face of its one end is provided with groove 14, recessed
Some rivet holes 15 are equidistantly provided with the plate face of the both sides of groove 14, its other end is provided with multiple sawtooth, the end of each sawtooth is equal
Manhole C16 is provided with, positioning core axle may pass through the manhole B13 of the foraminous shield and manhole C16 of spoiler, will be porous
Cover 5 links together with spoiler 10, is sleeved on sliding sleeve 11, and positioning core axle is elongated metallic rod；Assistant shape ribbon 8 is rubber
Material, its one end profile is assistant shape, and the other end is arranged in the groove 14 of spoiler 10 by rivet 9.
When this device is installed, sliding sleeve 11 is connected by bolt 4 be fastened on the marine riser equipped with circular buoyancy block first
Correct position；Foraminous shield 5 is sleeved on sliding sleeve 11 again, the both sides of foraminous shield 5 is docked with spoiler 10 respectively, by cunning
Enter positioning core axle under manhole A6 on set boss 2, make positioning core axle through the manhole B13 and spoiler of foraminous shield 5
10 manhole C16, foraminous shield 5 is linked together with spoiler 10, and then assistant shape ribbon 8 is installed by rivet 9
In the groove 14 of spoiler 10；Another many borehole jack 5, spoiler 10 and assistant shape ribbon 8 are arranged on as stated above again and are slided
On set 11, finally stop screw 7 is arranged in the manhole 6 on upper and lower two sliding sleeve boss 2, prevents positioning core axle upper and lower
Play.So far, a vortex-induced vibration suppression device installation.
As shown in Figure 5 and Figure 6, multiple vortex-induced vibrations are installed on the marine riser 1 being connected with drilling platforms 17 and suppress dress
18 are put, when ocean current flow direction has angle with spoiler 10, ocean current flows through marine riser 1 and can produce impulsive force on spoiler 10,
So that spoiler 10 drives the unitary rotation of assistant shape ribbon 8, meanwhile, foraminous shield 5 can occur fine rotation, treat assistant shape ribbon 8
Balance is reached positioned at current direction downstream rear spoiler 10.After spoiler 10 is balanced, assistant shape ribbon 8 under action of ocean current still
Can constantly wave.The whirlpool at the rear of marine riser 1 is first subjected to the centrifugation of spoiler 10, it is impossible to enough fully developed, Ran Houshou
To the destruction of the assistant shape ribbon 8 for persistently waving, suppress the formation and development of whirlpool.In spoiler 10 and assistant shape ribbon
Under 8 collective effect, the whirlpool at marine riser rear cannot fully develop, it is achieved thereby that the suppression of vortex-induced vibration.
Depending on installation site of the invention and quantity need to be according to actual conditions.
Claims (6)
1. a kind of self adaptation vortex-induced vibration suppression device with assistant shape ribbon, it is characterised in that：It include sliding sleeve, foraminous shield,
Spoiler and the part of assistant shape ribbon four, wherein sliding sleeve are fastened by bolts outside marine riser, and foraminous shield passes through positioning core axle
It is sleeved on sliding sleeve；One end of spoiler is connected with foraminous shield, and the other end is provided with assistant shape ribbon.
2. the self adaptation vortex-induced vibration suppression device with assistant shape ribbon according to claim 1, it is characterised in that：Assistant
Shape ribbon is main according to bionic principle, copies birds assistant to design.
3. the self adaptation vortex-induced vibration suppression device with assistant shape ribbon according to claim 1, it is characterised in that：It is described
Sliding sleeve is made up of two identical alloy in lightweight semicircular cylinders, is slided around axis arrangement three size identicals of upper, middle and lower in its outer surface
Set boss, is provided with manhole A, for installing stop screw, three sliding sleeve boss vertically on its upper and lower two sliding sleeve boss
The two ends of semicircular cylinder are tangentially equipped with counterbore, and bolt hole is provided with counterbore, and sliding sleeve is bolted and is fastened on water proof
Guan Shang.
4. the self adaptation vortex-induced vibration suppression device with assistant shape ribbon according to claim 1, it is characterised in that：It is described
Foraminous shield is made up of two identical plastics semicircular cylinders, some equally distributed size identical square openings is which is provided with, at it
Inner surface upper and lower ends are respectively equipped with size identical foraminous shield boss, to reduce the contact area of foraminous shield and sliding sleeve；It is porous
Two junction indentions of semicircular cylinder of cover, the end of each sawtooth is equipped with manhole B.
5. the self adaptation vortex-induced vibration suppression device with assistant shape ribbon according to claim 1, it is characterised in that：It is described
Spoiler is approximately rectangle, and using plastic material, the end face of its one end is provided with groove, is equidistantly set in the plate face of groove both sides
There are some rivet holes, its other end is provided with multiple sawtooth, the end of each sawtooth is equipped with manhole C, and positioning core axle can be worn
The manhole B of the foraminous shield and manhole C of spoiler is crossed, foraminous shield is linked together with spoiler, positioning core axle is solid
After fixed connection, stop screw need to be arranged in the manhole on upper and lower two sliding sleeve boss, prevent positioning core axle from altering up and down
Dynamic, positioning core axle is elongated metallic rod.
6. the self adaptation vortex-induced vibration suppression device with assistant shape ribbon according to claim 1, it is characterised in that：It is described
Assistant shape ribbon is quality of rubber materials, and its one end profile is assistant shape, and the other end is fixed on the groove of spoiler by rivet
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037622.5A CN106869821B (en) | 2017-01-18 | 2017-01-18 | A kind of adaptive vortex-induced vibration suppression device with assistant shape ribbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037622.5A CN106869821B (en) | 2017-01-18 | 2017-01-18 | A kind of adaptive vortex-induced vibration suppression device with assistant shape ribbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106869821A true CN106869821A (en) | 2017-06-20 |
| CN106869821B CN106869821B (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710037622.5A Active CN106869821B (en) | 2017-01-18 | 2017-01-18 | A kind of adaptive vortex-induced vibration suppression device with assistant shape ribbon |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679357A (en) * | 2018-05-13 | 2018-10-19 | 西南石油大学 | A kind of magnetic force swing is shaken restraining device and method with the whirlpool that water conservancy diversion rotation is combined |
| CN109018275A (en) * | 2018-08-17 | 2018-12-18 | 南京理工大学 | A kind of submarine navigation device whirlpool Induced Oscillation Adaptive Suppression device |
| CN111140570A (en) * | 2020-01-21 | 2020-05-12 | 天津大学 | Marine pipeline vortex-induced vibration suppression device with ribbons |
| CN112878175A (en) * | 2021-01-19 | 2021-06-01 | 苏交科集团股份有限公司 | Pier water flow resistance reducing device |
| CN113502741A (en) * | 2021-06-15 | 2021-10-15 | 哈尔滨工业大学 | Structure for inhibiting vortex-induced vibration of cylindrical structure |
| CN114369995A (en) * | 2022-02-21 | 2022-04-19 | 中南大学 | Flexible vortex generator for inhibiting bridge vortex vibration |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4078605A (en) * | 1977-02-25 | 1978-03-14 | Cameron Iron Works, Inc. | Riser pipe string |
| GB2445751A (en) * | 2007-01-17 | 2008-07-23 | Trelleborg Crp Ltd | Buoyancy module clamp with vortex tripping features for a riser |
| CN102134972A (en) * | 2010-12-31 | 2011-07-27 | 上海交通大学 | Device for inhibiting vortex-induced vibration of underwater standpipe of fish-tail imitating cowling |
| CN204357372U (en) * | 2014-12-22 | 2015-05-27 | 中国海洋大学 | Underwater line water conservancy diversion vibration-repressing device |
| CN104747098A (en) * | 2015-02-14 | 2015-07-01 | 中国石油大学(华东) | Marine riser vortex-induced vibration suppression device |
| CN204900165U (en) * | 2015-08-14 | 2015-12-23 | 厦门大学 | Wind energy conversion system low frequency aerodynamic noise suppression device based on rotatable radome fairing |
| CN105604500A (en) * | 2016-03-11 | 2016-05-25 | 青岛迪玛尔海洋工程有限公司 | Underwater riser vortex-induced vibration abatement device |
-
2017
- 2017-01-18 CN CN201710037622.5A patent/CN106869821B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4078605A (en) * | 1977-02-25 | 1978-03-14 | Cameron Iron Works, Inc. | Riser pipe string |
| GB2445751A (en) * | 2007-01-17 | 2008-07-23 | Trelleborg Crp Ltd | Buoyancy module clamp with vortex tripping features for a riser |
| CN102134972A (en) * | 2010-12-31 | 2011-07-27 | 上海交通大学 | Device for inhibiting vortex-induced vibration of underwater standpipe of fish-tail imitating cowling |
| CN204357372U (en) * | 2014-12-22 | 2015-05-27 | 中国海洋大学 | Underwater line water conservancy diversion vibration-repressing device |
| CN104747098A (en) * | 2015-02-14 | 2015-07-01 | 中国石油大学(华东) | Marine riser vortex-induced vibration suppression device |
| CN204900165U (en) * | 2015-08-14 | 2015-12-23 | 厦门大学 | Wind energy conversion system low frequency aerodynamic noise suppression device based on rotatable radome fairing |
| CN105604500A (en) * | 2016-03-11 | 2016-05-25 | 青岛迪玛尔海洋工程有限公司 | Underwater riser vortex-induced vibration abatement device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679357A (en) * | 2018-05-13 | 2018-10-19 | 西南石油大学 | A kind of magnetic force swing is shaken restraining device and method with the whirlpool that water conservancy diversion rotation is combined |
| CN108679357B (en) * | 2018-05-13 | 2019-10-01 | 西南石油大学 | A kind of whirlpool vibration inhibition device and method that magnetic force swing is combined with water conservancy diversion rotation |
| CN109018275A (en) * | 2018-08-17 | 2018-12-18 | 南京理工大学 | A kind of submarine navigation device whirlpool Induced Oscillation Adaptive Suppression device |
| CN109018275B (en) * | 2018-08-17 | 2020-07-31 | 南京理工大学 | Vortex excitation oscillation self-adaptive suppression device of underwater vehicle |
| CN111140570A (en) * | 2020-01-21 | 2020-05-12 | 天津大学 | Marine pipeline vortex-induced vibration suppression device with ribbons |
| CN112878175A (en) * | 2021-01-19 | 2021-06-01 | 苏交科集团股份有限公司 | Pier water flow resistance reducing device |
| CN113502741A (en) * | 2021-06-15 | 2021-10-15 | 哈尔滨工业大学 | Structure for inhibiting vortex-induced vibration of cylindrical structure |
| CN114369995A (en) * | 2022-02-21 | 2022-04-19 | 中南大学 | Flexible vortex generator for inhibiting bridge vortex vibration |
| CN114369995B (en) * | 2022-02-21 | 2022-11-04 | 中南大学 | Flexible vortex generator for inhibiting bridge vortex vibration |
| WO2023155922A1 (en) * | 2022-02-21 | 2023-08-24 | 中南大学 | Flexible vortex generator for inhibiting vortex-induced vibration of bridges |
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