CN107859492B - The vortex-induced vibration suppression device and method of driving swingle rotation are streamed in a kind of allotment - Google Patents
The vortex-induced vibration suppression device and method of driving swingle rotation are streamed in a kind of allotment Download PDFInfo
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- CN107859492B CN107859492B CN201711139509.4A CN201711139509A CN107859492B CN 107859492 B CN107859492 B CN 107859492B CN 201711139509 A CN201711139509 A CN 201711139509A CN 107859492 B CN107859492 B CN 107859492B
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- 230000001629 suppression Effects 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 230000011218 segmentation Effects 0.000 claims abstract 2
- 238000005096 rolling process Methods 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 230000002401 inhibitory effect Effects 0.000 claims description 5
- 244000309464 bull Species 0.000 claims description 4
- 230000003447 ipsilateral effect Effects 0.000 claims description 4
- 230000001934 delay Effects 0.000 claims description 3
- 230000005764 inhibitory process Effects 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims 1
- 230000018109 developmental process Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000003032 molecular docking Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
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- 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
- E21B17/01—Risers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/002—Influencing flow of fluids by influencing the boundary layer
- F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
- F15D1/006—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising moving surfaces, wherein the surface, or at least a portion thereof is moved or deformed by the fluid flow
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- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to vortex-induced vibration suppression devices and method that driving swingle rotation is streamed in a kind of allotment, device is made of rotary part, water conservancy diversion housing and transmission system three parts, T shape slide fastener of the rotary part by T shape sliding slot and with strut forms, it is responsible for the rotation of whole device, water conservancy diversion housing is made of aperture pod and tuning tailgate, and transmission system is made of two pairs of transmission swingles and matched drive screw, gear, bearing block and connecting rod.Under the collective effect that present apparatus aperture pod enters head piece flow allocating, driven swingle rotational shear, aperture pod outflow port jet stream, tuning tailgate segmentation wake zone, make outside stream total flow reduce, stream boundary layer separation point delay, vortex formation length extend, tail width become smaller, realize Non-energy-consumption vortex-induced vibration inhibit.
Description
Technical field
The invention belongs to marine riser facility laying technology fields, and in particular to a kind of deploy streams driving swingle rotation
Vortex-induced vibration suppression device and method.
Background technique
Currently, supply falls short of demand already for China land petroleum resources, oil gas external dependence degree persistently rises, and energy crisis is convex
It is aobvious.Devoting Major Efforts To Developing Marine oil and gas resource is one of the key measure for alleviating this crisis.Marine riser is from sea bed oil and gas wellhead
The core conveyance conduit that treatment facility is preserved to sea plays the role of vital in Marine oil and gas resource exploitation.With
Offshore and gas development deepens continuously, and marine riser is placed oneself in the midst of in complicated marine environment, on the one hand by wave and ocean current
Vortex-induced vibration influences, easily initiation fatigue damage, shortens the working life；The draw ratio of another aspect marine riser is increasing,
The fatigue failure probability as caused by vortex-induced vibration sharply increases.Once standpipe fails, it will cause serious economic loss and ring
Border is destroyed.Therefore, how effectively to inhibit standpipe vortex-induced vibration is always that marine oil and gas exploits the thorny problem that must be faced.
Existing vortex-induced vibration of marine riser inhibits device to be broadly divided into active control and passive two kinds of control.Active control
It is that real-time monitoring is carried out by stream field and works stress, using computer controlled automatic energy injection system, by external energy
Amount introduces flow field to control Vortex Shedding, such as acoustically-driven system, suction and blowing, the rotation of control-rod.Active control dress
It sets and needs additional energy input, connection is complicated and working condition requirement is harsh.Passive control is by changing body structure surface shape or increasing
If auxiliary equipment to change Flow Field, to control the formation and development process of vortex, inhibits falling off for vortex.Common quilt
Dynamic control device has separator disk, radome fairing etc., but these devices are only applicable to the incoming flow of specific direction, and inhibitory effect is general.
Therefore, in face of the practical ocean current of direction moment variation, designing one kind can adapt to direction change, comprehensive active and passive control
The Non-energy-consumption vortex-induced vibration suppression device of advantage is very necessary.
Summary of the invention
Problem to be solved by this invention is to inhibit deficiency existing for device for existing vortex-induced vibration of marine riser, is proposed
A kind of allotment of comprehensive active and passive control advantage, Non-energy-consumption stream driving swingle rotation vortex-induced vibration suppression device and
Method.
To achieve the goals above, the present invention adopts the following technical scheme:
It is a kind of allotment stream driving swingle rotation vortex-induced vibration suppression device by rotary part, water conservancy diversion housing and transmission
System three parts are constituted.Rotary part is made of upper and lower two rotary modules, and rotary module includes a T shape sliding slot and four
T shape slide fastener with strut.T shape sliding slot is the conduit that cross section is T v notch v, and T shape sliding slot passes through spiral shell by two semi-circular components
Bolt is formed by connecting, and T shape sliding slot suit is fixed on standing tube outer wall；The T v notch v of the buckle cross section and T shape sliding slot of T shape slide fastener
Match, the buckle rotation set of T shape slide fastener enters T shape sliding slot, and four T shape slide fasteners with strut are circumferentially uniformly distributed around T shape sliding slot, each T
A strut, the strut and T shape sliding slot are connected in the middle part of shape slide fastener lateral wall at same plane, the strut end of every T shape slide fastener
End is equipped with screw thread.
Water conservancy diversion housing is sleeved on outside rotary part by symmetrical two halves plastics matter component by bolt docking, water conservancy diversion housing packet
Include aperture pod and tuning tailgate.Aperture pod is a cylinder, and tuning tailgate is a rectangular plate, aperture pod and tune
It is integral to tailgate, and tuning tailgate and the axis of aperture pod are generally aligned in the same plane.Back to tune on aperture pod
To the side of tailgate be provided with it is parallel with axis it is long and narrow enter head piece, be respectively provided with one on the aperture pod of tuning tailgate two sides
Long and narrow outflow port.The position that each rotary module T shape slide fastener strut end thread is corresponded on aperture pod is provided with
The threaded hole matched, the strut of each T shape slide fastener are connected fixation with aperture pod by screw thread, allow aperture pod with
The rotation of T shape slide fastener.The aperture pod is provided with the through-hole fixed for connecting rod and the drive screw installation of transmission system.
Transmission system is including in two interior swingles, four drive screws, eight gears, two driven swingles, eight
Set the bearing block and four connecting rods of rolling bearing.The interior swingle is mounted on the two sides of aperture pod internal standpipe,
The driven swingle is mounted on aperture pod both sides external, and driven swingle is arranged in juxtaposition with interior swingle, and one
Driven swingle and an interior swingle are a pair of of transmission swingle.Each pair of transmission swingle, which is respectively mounted, to be fixed on into head piece and adjusts
To on the aperture pod wall surface among tailgate.The both ends of driven swingle and interior swingle are set in built-in rolling bearing
In bearing block, and connected between the bearing block of two built-in rolling bearings of each pair of transmission swingle one end with a connecting rod,
Connecting rod passes through the through-hole on aperture pod, and interior swingle and driven swingle is made to be located at the inside and outside of aperture pod
Two sides, and interior swingle to aperture pod inner wall distance be less than interior swingle to riser wall distance, connecting rod with open
Stop-leak compound is filled in gap between the pod through-hole of hole to be sealed.The surface of every interior swingle is laid with staggered rectangular-wing
Piece, and rectangular fin is vertical with interior swingle surface；The both ends of every interior swingle are equipped with external screw thread, every driven swingle
Both ends are equipped with a gear, between the interior swingle end external screw thread and driven swingle end gear of a pair of of transmission swingle
Equipped with a drive screw, drive screw passes through the through-hole on aperture pod, between drive screw and aperture pod through-hole
Gap in filling stop-leak compound be sealed；One end of drive screw is gear, and the other end is external screw thread, the gear of drive screw
It is engaged with the external screw thread of interior swingle end, the external screw thread of drive screw is engaged with the gear of driven rotation boom end.
Using the allotment stream driving swingle rotation vortex-induced vibration suppression device can provide it is a kind of allotment around
The vortex-induced vibration inhibiting method of stream driving swingle rotation.When, there are when the angle of attack, ocean current impact is adjusted between ocean current and tuning tailgate
Rotate tuning tailgate drive whole device around standpipe to tailgate, until tuning tailgate goes to standpipe back stream side and puts down with flow direction
Row.In device rotary course, ocean current enters from the head piece that enters of aperture pod, and the outflow port stream from tuning tailgate two sides
Out, auxiliary pushing is played to device tuning, accelerates device-adaptive caused by flow direction changes and regulates the speed.Tuning tailgate turns
Reach stable after carrying on the back stream side to standpipe, part ocean current enters head piece from aperture pod and flows between aperture pod and standpipe
Annular space impacts on the rectangular fin of interior swingle interlaced arrangement when by interior swingle, and generating torque makes interior rotation
Bar rotation.Since interior swingle installation site is close to aperture pod, the gap between interior swingle and aperture pod is logical
The ocean current flow velocity crossed is greater than the ocean current flow velocity passed through from the gap between interior swingle and standpipe, thus the rotation side of interior swingle
It is consistent to the flow direction of standpipe is bypassed with the ocean current of the interior swingle side.Pass through drive screw after inward turning bar rotation
Driven swingle is driven to rotate, and driven swingle rotation direction is identical as ipsilateral inward turning bar rotation direction.Rotation
Driven swingle is filled with additional momentum around laminar boundary layer between aperture pod and driven swingle, delays boundary
The burble point of layer, makes wake flow sector width narrow.Shear layer is streamed in the ocean current remittance ejected from aperture pod outflow port, will revolve
The formation area in whirlpool downstream elapses, and has broken up the low-pressure area of aperture pod back stream side, reduces the pressure difference resistance of aperture pod
Power.Meanwhile the formation length of vortex increases, Vortex Shedding cycle stretch-out, shedding frequence reduces.Back is flowed side low pressure by tuning tailgate
Area and two sides vortex are effectively divided, and the development of vortex is further suppressed, and stream lift to reduce.Enter in aperture pod
Head piece flow allocating, driven swingle rotational shear, aperture pod outflow port jet stream, tuning tailgate divide the common of wake zone
Under effect, make outside stream total flow reduce, stream boundary layer separation point delay, vortex formation length extend, tail width become
It is small, the inhibition of vortex is realized, and then inhibit vortex-induced vibration.
The present invention has the advantage that due to taking above scheme
1. the present invention is under water impact, tuning tailgate can drive whole device to rotate, and be adapted to coming for different directions
Stream；
2. the present invention combines the advantages of active control and passive control, realizes active control and cooperateed with passive control
Effect；
It, can multiple units of arranged for interval on standpipe according to actual needs 3. the present invention is used as a basic unit.
Detailed description of the invention
Fig. 1 is overall structure of the present invention
Fig. 2 is that structure of the invention splits schematic diagram
Fig. 3 is water conservancy diversion casing structure schematic diagram of the present invention
Fig. 4 is transmission system schematic diagram of the present invention
Fig. 5 is rotary part schematic diagram of the present invention
Fig. 6 is the rectangular fin distribution schematic diagram in the present invention on swingle
Fig. 7 is that drive screw of the present invention is connected schematic diagram
Fig. 8 is operation schematic diagram of the present invention
Wherein: 1, standpipe；2, aperture pod；3, driven swingle；4, tuning tailgate；5, interior swingle；6, rectangular-wing
Piece；7, outflow port；8, enter head piece；9, T shape sliding slot；10, T shape slide fastener；11, external screw thread；12, drive screw；13, gear；14, interior
Set the bearing base of rolling bearing；15, connecting rod.
Specific embodiment
A specific embodiment of the invention is described further with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, the vortex-induced vibration suppression device of driving swingle rotation is streamed in a kind of allotment, by rotating part
Part, water conservancy diversion housing and transmission system three parts are constituted.Rotary part is made of upper and lower two rotary modules, and rotary module includes
One T shape sliding slot 9 and four T shape slide fasteners 10 with strut.
As shown in figure 5, T shape sliding slot 9 is the conduit that cross section is T v notch v, T shape sliding slot 9 is led to by two semi-circular components
It crosses and is bolted, the suit of T shape sliding slot 9 is fixed on 1 outer wall of standpipe；The T of the buckle cross section and T shape sliding slot 9 of T shape slide fastener 10
V notch v matching, the buckle rotation set of T shape slide fastener 10 enter T shape sliding slot 9, and four T shape slide fasteners 10 with strut are circumferential around T shape sliding slot 9
It is uniformly distributed, a strut is connected in the middle part of each 10 lateral wall of T shape slide fastener, the strut and T shape sliding slot 9 are in same plane, often
The strut end of root T shape slide fastener 10 is equipped with screw thread.
As shown in figure 3, water conservancy diversion housing is sleeved on outside rotary part by symmetrical two halves plastics matter component by bolt docking,
Water conservancy diversion housing includes aperture pod 2 and tuning tailgate 4.Aperture pod 2 is a cylinder, and tuning tailgate 4 is a rectangular plate,
Aperture pod 2 is integral with tuning tailgate 4, and tuning tailgate 4 and the axis of aperture pod 2 are generally aligned in the same plane.?
On aperture pod 2 back to the side of tuning tailgate 4 be provided with it is parallel with axis it is long and narrow enter head piece 8, in tuning tailgate two sides
A long and narrow outflow port 7 is respectively provided on aperture pod 2.Each rotary module T shape slide fastener 10 is corresponded on aperture pod 2
The position of strut end thread is all provided with matched threaded hole, and the strut of each T shape slide fastener 10 passes through screw thread and aperture water conservancy diversion
2 linking of cover is fixed, and rotates aperture pod 2 with T shape slide fastener 10.The aperture pod 2 is provided with for transmission system
Connecting rod 15 and drive screw 12 fixed through-hole is installed.
As shown in figure 4, transmission system include two gears 13, two of drive screw 12, eight of interior swingle 5, four from
The bearing block 14 and four connecting rods 15 of dynamic 3, eight built-in rolling bearings of swingle.As shown in Fig. 2, the interior swingle 5
The two sides of 2 internal standpipe of aperture pod are mounted on, the driven swingle 3 is mounted on 2 both sides external of aperture pod, and
Driven swingle 3 is arranged in juxtaposition with interior swingle 5, and a driven swingle 3 and an interior swingle 5 are a pair of of transmission rotation
Bar.Each pair of transmission swingle, which is respectively mounted, to be fixed on 2 wall surface of aperture pod among head piece 8 and tuning tailgate 4.Driven rotation
The both ends of bull stick 3 and interior swingle 5 are set in the bearing block 14 of built-in rolling bearing, and each pair of transmission swingle one end
It is connected between the bearing block 14 of two built-in rolling bearings with a connecting rod 15, connecting rod 15 passes through on aperture pod 2
Through-hole makes interior swingle 5 and driven swingle 3 be located at the inside and outside two sides of aperture pod 2, and interior swingle 5 arrives aperture
The distance of 2 inner wall of pod is less than the distance that interior swingle 5 arrives 1 wall of standpipe, between 2 through-hole of connecting rod 15 and aperture pod
Stop-leak compound is filled in gap to be sealed.As shown in fig. 6, the surface of every interior swingle 5 is laid with staggered rectangular fin 6,
And rectangular fin 6 is vertical with interior 5 surface of swingle.As shown in fig. 7, the both ends of every interior swingle 5 be equipped with external screw thread 11, every
The both ends of driven swingle 3 are equipped with a gear 13, a pair of of transmission swingle 5 end external screw thread 11 of interior swingle with it is driven
A drive screw 12 is equipped between 3 end gear 13 of swingle, drive screw 12 passes through the through-hole on aperture pod 2,
Stop-leak compound is filled in gap between 2 through-hole of drive screw 12 and aperture pod to be sealed.One end of drive screw 12 is tooth
Wheel 13, the other end are external screw thread 11, and the gear 13 of drive screw 12 is engaged with the external screw thread 11 of interior 5 end of swingle, are driven spiral shell
The external screw thread 11 of bar 12 is engaged with the gear 13 of driven 3 end of swingle.
As shown in figure 8, providing one kind using the vortex-induced vibration suppression device that driving swingle rotation is streamed in the allotment
The vortex-induced vibration inhibiting method of driving swingle rotation is streamed in allotment.When between ocean current and tuning tailgate 4 there are when the angle of attack, ocean current
Impact tuning tailgate 4 makes tuning tailgate 4 that whole device be driven to rotate around standpipe 1, until tuning tailgate 4 goes to the back stream of standpipe 1 side
And it is parallel with flow direction.In device rotary course, ocean current enters from the head piece 8 that enters of aperture pod 2, and from 4 liang of tuning tailgate
The outflow port 7 of side flows out, and plays auxiliary pushing to device tuning, accelerates device-adaptive adjustment speed caused by flow direction changes
Degree.Tuning tailgate 4 reaches stable after going to the back stream of standpipe 1 side, and part ocean current enters head piece 8 from aperture pod 2 and flows into aperture
Annular space between pod 2 and standpipe 1 impacts the rectangle in interior 5 interlaced arrangement of swingle when by interior swingle 5
On fin 6, generating torque rotates interior swingle 5.Since interior 5 installation site of swingle is close to aperture pod 2, from interior rotation
The ocean current flow velocity that gap between bar 5 and aperture pod 2 passes through is greater than to be passed through from the gap between interior swingle 5 and standpipe 1
Ocean current flow velocity, thus the ocean current of the rotation direction of interior swingle 5 and interior 5 side of swingle bypasses the flowing of standpipe 1
Direction is consistent.Interior swingle 5 passes through drive screw 12 after rotating and driven swingle 3 is driven to rotate, and driven swingle 3 rotates
Direction is identical as ipsilateral 5 rotation direction of interior swingle.The driven swingle 3 of rotation is to aperture pod 2 and driven swingle 3
Between additional momentum is filled with around laminar boundary layer, delay the burble point in boundary layer, wake flow sector width made to narrow.From aperture
Shear layer is streamed in the ocean current remittance that 2 outflow port 7 of pod ejects, and the formation area of vortex is downstream elapsed, aperture has been broken up
The low-pressure area of the back stream of pod 2 side, reduces the pressure drag of aperture pod 2.Meanwhile the formation length of vortex increases, rotation
Vortex shedding cycle stretch-out, shedding frequence reduce.Tuning tailgate 4 effectively divides back stream side low-pressure area and two sides vortex, further
The development for inhibiting vortex streams lift to reduce.Enter 8 flow allocating of head piece, driven swingle 3 in aperture pod 2
Rotational shear, 2 outflow port of aperture pod, 7 jet stream, tuning tailgate 4 divide wake zone collective effect under, stream outside always
Flow reduce, stream boundary layer separation point delay, vortex formation length extend, tail width become smaller, realize the inhibition of vortex,
And then inhibit vortex-induced vibration.
Embodiment:
When installing apparatus of the present invention, using sub-module mounting means.Mounting rotating unit first, as shown in figure 4, by four
10 rotation set of T shape slide fastener with strut enters in the conduit of T shape sliding slot 9, then T shape sliding slot 9 is bolted and is fixed on outside standpipe 1
On wall, distance between upper and lower two rotary modules of rotary part by aperture pod 2 with 10 strut end thread of T shape slide fastener
The position of matched threaded hole determines.
Then, transmission system is installed on water conservancy diversion housing, since water conservancy diversion housing and transmission system are in symmetrical about standpipe 1
Distribution, thus a pair of of transmission swingle is installed on every half water conservancy diversion housing.As shown in Fig. 2, connecting rod 15 is passed through aperture water conservancy diversion
Connecting rod 15 on cover 2 for transmission system installs fixed through-hole, and there are two built-in rolling bearings for the installation of 15 both ends of connecting rod
The cross section of bearing block 14, the bearing block 14 of two built-in rolling bearings is parallel with the cross section of standpipe 1, connecting rod 15 with open
Stop-leak compound is filled in gap between 2 through-hole of hole pod to be sealed.Drive screw 12 is passed through and is installed admittedly for drive screw 12
Fixed through-hole has 13 one end of gear to be placed in 2 inside of aperture pod, between 2 through-hole of drive screw 12 and aperture pod
Stop-leak compound is filled in gap to be sealed.Interior swingle 5 is sleeved on to the bearing block 14 of built-in rolling bearing with driven swingle 3
In, and interior 5 end external screw thread 11 of swingle is engaged with 12 end gear 13 of drive screw, by driven 3 end gear of swingle
13 engage with 12 end external screw thread 11 of drive screw.Interior swingle 5 is mounted in water conservancy diversion housing, and driven swingle 3, which is mounted on, leads
It flows outside housing.
It is fixed finally, two halves water conservancy diversion housing is docked by bolt, and makes eight of the rotary part T shape slide fasteners with strut
10 strut end threads are connected fixation with the threaded hole of aperture pod 2.
After the installation is completed, the standpipe 1 equipped with the device is placed in ocean current.Exist when between ocean current and tuning tailgate 4
When the angle of attack, ocean current impact tuning tailgate 4 makes tuning tailgate 4 that whole device be driven to rotate around standpipe 1, until tuning tailgate 4 is gone to
The back stream of standpipe 1 side and parallel with flow direction.In device rotary course, ocean current enters from the head piece 8 that enters of aperture pod 2, and from
The outflow port 7 of 4 two sides of tuning tailgate flows out, and plays auxiliary pushing to device tuning, accelerates device caused by flow direction changes
Adaptively regulate the speed.Tuning tailgate 4 reaches stable after going to the back stream of standpipe 1 side, and part ocean current enters head piece from aperture pod 2
8 flow into the annular space between aperture pod 2 and standpipe 1, and when by interior swingle 5, impact interlocks in interior swingle 5
On the rectangular fin 6 of arrangement, generating torque rotates interior swingle 5.Since interior 5 installation site of swingle is close to aperture pod
2, the ocean current flow velocity passed through from the gap between interior swingle 5 and aperture pod 2 is greater than between interior swingle 5 and standpipe 1
The ocean current flow velocity that passes through of gap, thus the ocean current of the rotation direction of interior swingle 5 and interior 5 side of swingle is around vertical
The flow direction of pipe 1 is consistent.Interior swingle 5 passes through drive screw 12 after rotating and driven swingle 3 is driven to rotate, and driven rotation
3 rotation direction of bull stick is identical as ipsilateral 5 rotation direction of interior swingle.Rotation driven swingle 3 to aperture pod 2 with from
It is filled with additional momentum around laminar boundary layer between dynamic swingle 3, delays the burble point in boundary layer, becomes wake flow sector width
It is narrow.Shear layer is streamed in the ocean current remittance ejected from 2 outflow port 7 of aperture pod, and the formation area of vortex is downstream elapsed, is rushed
The low-pressure area for having dissipated the back stream of aperture pod 2 side, reduces the pressure drag of aperture pod 2.Meanwhile the formation length of vortex
Increase, Vortex Shedding cycle stretch-out, shedding frequence reduces.Tuning tailgate 4 effectively divides back stream side low-pressure area and two sides vortex,
The development for further suppressing vortex streams lift to reduce.Enter 8 flow allocating of head piece, driven rotation in aperture pod 2
3 rotational shear of bull stick, 2 outflow port of aperture pod, 7 jet stream, tuning tailgate 4 are divided under the collective effect of wake zone, make it is external around
Stream total flow reduce, stream boundary layer separation point delay, vortex formation length extend, tail width become smaller, realize vortex
Inhibit, and then inhibits vortex-induced vibration.
Claims (2)
1. the vortex-induced vibration suppression device of driving swingle rotation is streamed in a kind of allotment, by rotary part, water conservancy diversion housing and transmission
System three parts are constituted；Rotary part is made of upper and lower two rotary modules, and rotary module includes a T shape sliding slot (9) and four
A T shape slide fastener (10) with strut；T shape sliding slot (9) is the conduit that cross section is T v notch v, and T shape sliding slot (9) is by two semi-rings
Shape component is bolted, and T shape sliding slot (9) suit is fixed on standpipe (1) outer wall；The buckle of T shape slide fastener (10) is transversal
Face is matched with the T v notch v of T shape sliding slot (9), and the buckle rotation set of T shape slide fastener (10) enters T shape sliding slot (9), four T shapes with strut
Slide fastener (10) is circumferentially uniformly distributed around T shape sliding slot (9)；Water conservancy diversion housing is by symmetrical two halves plastics matter component by bolt to female connector
Outside rotary part, water conservancy diversion housing includes aperture pod (2) and tuning tailgate (4)；Aperture pod (2) is a cylinder,
Tuning tailgate (4) is a rectangular plate, and aperture pod (2) is integral with tuning tailgate (4), and tuning tailgate (4) with open
The axis of hole pod (2) is generally aligned in the same plane；Transmission system includes two interior swingles (5), four drive screws (12), eight
A gear (13), two driven swingles (3), eight built-in rolling bearings bearing block (14) He Sigen connecting rod (15), one
The driven swingle of root (3) and an interior swingle (5) are a pair of of transmission swingle；Driven swingle (3) and interior swingle (5)
Both ends are set in the bearing block (14) of built-in rolling bearing；The both ends of every interior swingle (5) are equipped with external screw thread (11), often
The both ends of the driven swingle of root (3) are equipped with a gear (13), in interior swingle (5) end external screw thread of a pair of of transmission swingle
(11) drive screw (12) is equipped between driven swingle (3) end gear (13), drive screw (12) passes through aperture
Through-hole on pod (2), filling stop-leak compound carries out close in the gap between drive screw (12) and aperture pod (2) through-hole
Envelope；One end of drive screw (12) be gear (13), the other end be external screw thread (11), the gear (13) of drive screw (12) with it is interior
The external screw thread (11) of swingle (5) end engages, the external screw thread (11) of drive screw (12) and the tooth of driven swingle (3) end
Take turns (13) engagement；Stop-leak compound is filled in gap between connecting rod (15) and aperture pod (2) through-hole to be sealed；Its feature
It is: is connected with a strut, the strut and T shape sliding slot (9) in the middle part of described T shape slide fastener (10) lateral wall in same plane,
The strut end of every T shape slide fastener (10) is equipped with screw thread；Back to the one of tuning tailgate (4) on the aperture pod (2)
Side be provided with it is parallel with axis it is long and narrow enter head piece (8), be respectively provided on the aperture pod (2) of tuning tailgate two sides one it is narrow
Long outflow port (7)；The position of each rotary module T shape slide fastener (10) strut end thread is corresponded on aperture pod (2)
It is all provided with matched threaded hole, the strut of each T shape slide fastener (10) is connected fixation with aperture pod (2) by screw thread, makes
Aperture pod (2) can be rotated with T shape slide fastener (10)；The aperture pod (2) is provided with the connecting rod for transmission system
(15) and drive screw (12) installs fixed through-hole；The interior swingle (5) is mounted on aperture pod (2) internal standpipe
Two sides, the driven swingle (3) is mounted on aperture pod (2) both sides external, and driven swingle (3) and interior rotation
Bar (5) is arranged in juxtaposition；Each pair of transmission swingle, which is respectively mounted, is fixed on the aperture water conservancy diversion intermediate into head piece (8) and tuning tailgate (4)
It covers on (2) wall surface；With one between the bearing block (14) of two built-in rolling bearings of described each pair of transmission swingle one end
Connecting rod (15) connection, connecting rod (15) pass through the through-hole on aperture pod (2), make interior swingle (5) and driven swingle
(3) aperture pod (2) are located at1Inside and outside two sides, and interior swingle (5) to aperture pod (2) inner wall distance it is small
The distance of standpipe (1) wall is arrived in interior swingle (5)；The surface of every interior swingle (5) is laid with staggered rectangular fin (6),
And rectangular fin (6) is vertical with interior swingle (5) surface.
2. the vortex-induced vibration inhibiting method of driving swingle rotation is streamed in a kind of allotment, using allotment as described in claim 1
The vortex-induced vibration suppression device for streaming driving swingle rotation, when there are when the angle of attack, ocean current is rushed between ocean current and tuning tailgate (4)
Hitting tuning tailgate (4) makes tuning tailgate (4) that whole device to be driven to rotate around standpipe (1), until tuning tailgate (4) go to standpipe
(1) back stream side and parallel with flow direction；It is characterized by: ocean current enters head piece from aperture pod (2) in device rotary course
(8) enter, and flowed out from the outflow port (7) of tuning tailgate (4) two sides, auxiliary pushing is served to device tuning, accelerates stream
It regulates the speed to caused device-adaptive is changed；Tuning tailgate (4) reaches stable after going to standpipe (1) back stream side, part sea
Stream enters the annular space that head piece (8) flows between aperture pod (2) and standpipe (1) from aperture pod (2), in process
It when swingle (5), impacts on the rectangular fin (6) of interior swingle (5) interlaced arrangement, generating torque turns interior swingle (5)
It is dynamic；Since interior swingle (5) installation site is close to aperture pod (2), between interior swingle (5) and aperture pod (2)
The ocean current flow velocity that passes through of gap be greater than the ocean current flow velocity that the gap between interior swingle (5) and standpipe (1) passes through, thus it is interior
The rotation direction of swingle (5) is consistent around the flow direction of standpipe (1) with the ocean current of interior swingle (5) side；It is interior
Driven swingle (3) rotation, and driven swingle (3) rotation side are driven by drive screw (12) after swingle (5) rotation
To identical as ipsilateral interior swingle (5) rotation direction；The driven swingle (3) of rotation is to aperture pod (2) and driven rotation
It is filled with additional momentum around laminar boundary layer between bull stick (3), delays the burble point in boundary layer, becomes wake flow sector width
It is narrow；Shear layer is streamed in the ocean current remittance ejected from aperture pod (2) outflow port (7), and the formation area of vortex is downstream pushed away
It moves, has broken up the low-pressure area of aperture pod (2) back stream side, reduced the pressure drag of aperture pod (2)；Meanwhile vortex
Formation length increase, Vortex Shedding cycle stretch-out, shedding frequence reduce；Back is flowed side low-pressure area and two sides by tuning tailgate (4)
Vortex is effectively divided, and the development of vortex is further suppressed, and streams lift to reduce；Enter head piece in aperture pod (2)
(8) flow allocating, driven swingle (3) rotational shear, aperture pod (2) outflow port (7) jet stream, tuning tailgate (4) segmentation
Under the collective effect of wake zone, so that outside is streamed total flow and reduce, stream that boundary layer separation point is delayed, vortex formation length is prolonged
Long, tail width becomes smaller, and realizes the inhibition of vortex, and then inhibit vortex-induced vibration.
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| CN108756769B (en) * | 2018-06-13 | 2019-08-06 | 西南石油大学 | A kind of the synchronization vibration suppression and power generator and method of standpipe peripheral hardware sleeve and rotating plate |
| CN111188815B (en) * | 2020-02-08 | 2021-11-23 | 西南石油大学 | Vibration suppression device and method for major-headed fish-shaped slotted flow guide injection and tail swinging |
| CN113445934B (en) * | 2021-05-28 | 2022-09-20 | 上海交通大学 | Device for restraining vortex-induced motion of ocean platform by utilizing wave force |
| CN113992060B (en) * | 2021-10-27 | 2023-08-15 | 西南石油大学 | Synchronous vibration suppression and power generation device and method combining drainage and sliding pendulum |
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| CN104712266A (en) * | 2015-01-08 | 2015-06-17 | 西南石油大学 | Active and passive control synergistic stand pipe vibration abatement device and method |
| CN106089121A (en) * | 2016-06-16 | 2016-11-09 | 西南石油大学 | One utilizes returns Energy suppression marine riser vortex-induced vibration device and method on drilling fluid |
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| CN206625791U (en) * | 2017-02-28 | 2017-11-10 | 西南石油大学 | A kind of submarine pipeline vortex-induced vibration restraining device |
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| GB2455951A (en) * | 2006-11-22 | 2009-07-01 | Shell Int Research | Systems and methods for reducing drag and/or vortex induced vibration |
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| CN104712266A (en) * | 2015-01-08 | 2015-06-17 | 西南石油大学 | Active and passive control synergistic stand pipe vibration abatement device and method |
| CN106089121A (en) * | 2016-06-16 | 2016-11-09 | 西南石油大学 | One utilizes returns Energy suppression marine riser vortex-induced vibration device and method on drilling fluid |
| CN106223867A (en) * | 2016-09-23 | 2016-12-14 | 西南石油大学 | A kind of riser systems structural parameters that regulate avoid the device and method of Vortex-excited vibration |
| CN206625791U (en) * | 2017-02-28 | 2017-11-10 | 西南石油大学 | A kind of submarine pipeline vortex-induced vibration restraining device |
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