CN107701122A - The standpipe vortex-induced vibration suppression device and method that a kind of Fenestration drainage is combined with swing - Google Patents
The standpipe vortex-induced vibration suppression device and method that a kind of Fenestration drainage is combined with swing Download PDFInfo
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- CN107701122A CN107701122A CN201711055221.9A CN201711055221A CN107701122A CN 107701122 A CN107701122 A CN 107701122A CN 201711055221 A CN201711055221 A CN 201711055221A CN 107701122 A CN107701122 A CN 107701122A
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- 230000001629 suppression Effects 0.000 title claims abstract description 18
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- 238000005096 rolling process Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000005265 energy consumption Methods 0.000 claims abstract description 7
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- 239000012530 fluid Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 11
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- 239000004033 plastic Substances 0.000 claims description 6
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- 238000000926 separation method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
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- 239000007769 metal material Substances 0.000 description 2
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- 239000013535 sea water Substances 0.000 description 1
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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
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- 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
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Abstract
The standpipe vortex-induced vibration suppression device and method combined the present invention relates to Fenestration drainage with swing, device is made up of swing module and Fenestration drainage guard, swing module includes rolling bearing, disk bearing, fixed support, arc perforate blade and fishtail type water-stop sheet, Fenestration drainage guard is a cylinder, drainage window and jet exit are provided with its surface, and it is empty in the barrel between drainage window and jet exit, drain the region between window in each two and uniformly open up netted open-end hole.In the case where the netted open-end hole throttling of present apparatus Fenestration drainage guard, drainage window water conservancy diversion, jet exit eject stream, arc perforate blade rotation allotment boundary layer momentum and upset the collective effect of spatial flow, the fishtail type water-stop sheet segmentation flowing space and adjustment flow direction, the vortex-induced vibration for realizing Non-energy-consumption suppresses.
Description
Technical field
The invention belongs to marine riser facility laying technology field, and in particular to a kind of Fenestration drainage is combined vertical with swing
Pipe vortex-induced vibration suppression device and method.
Background technology
Devoting Major Efforts To Developing Marine oil and gas resource is to reduce one of key method of oil gas external dependence degree high at present.
China's deepwater oil-gas development technology has marched toward the international rank of advanced units, crucial tie of the marine riser as connection sea bed to platform,
Carry the important mission of safe and efficient conveying extraction fluid.However, the thing such as increase, oceanic winds, wave, stream with the exploitation depth of water
Influence of the environment to standpipe is managed on foot to increase.Especially in the presence of ocean wave, stream, standpipe rear can form vortex, so as to induce
Vortex-induced vibration.When vortex shedding frequencies are close with standpipe intrinsic frequency, resonance can be caused, accelerate the fatigue damage of standpipe, from
And delay duty cycle, cause huge economic loss and environmental destruction.Therefore, the suppression of vortex-induced vibration is always ocean
The focus of engineers and technicians' concern.
At present, the passive restraining device of vortex-induced vibration causes boundary layer separation point mainly by changing standpipe surface configuration
Migration, so as to suppress the formation of wake flow vortex or development, such as separator disk, radome fairing, rectification ribbon, spiral strake.These
Device uses metal material mostly, adds the burden of standpipe, it is necessary to be equipped with bigger buoyant mass, and the suppression dress of metal material
Put immersion and be also easy to produce corrosion in the seawater, so as to lose inhibition.In addition, current direction constantly changes, with the suppression of flow rotation
Device processed really could adapt to flow to the marine environment of consecutive variations.The active suppression device of vortex-induced vibration needs to inject external energy
Measure to drive auxiliary equipment to rotate, energy consumption is larger, is not easy to live use.Therefore, be badly in need of lightweight, rotatable, nonmetallic materials,
The vortex-induced vibration suppression device of Non-energy-consumption.
The content of the invention
It is an object of the invention to the deficiency for existing vortex-induced vibration suppression device, there is provided a kind of lightweight, economy, incapability
The standpipe vortex-induced vibration suppression device combined with the Fenestration drainage of stream rotation with swing and method of consumption.
To achieve these goals, apparatus of the present invention adopt the following technical scheme that：
The standpipe vortex-induced vibration suppression device that a kind of Fenestration drainage is combined with swing, by swing module and Fenestration drainage guard group
Into；Swing module includes two rolling bearings, four disk bearings, two fixed supports, eight arc perforate blades and one
Fishtail type water-stop sheet.Rolling bearing is the inside and outside coil structures of embedded cylindrical roller, and rolling bearing internal diameter is equal to the external diameter of standpipe,
Upper and lower two rolling bearings are fixed on standing tube outer wall by the height suit of one, interval Fenestration drainage guard.Described rotary shaft
Hold 2 times that height is fixed support height.
Fixed support is connected with the three-toed claw-type structure of three rod handles, the centre one of described three rod handles for annulus side
Root is long rod handle, and remaining two are the bat handles being arranged symmetrically on middle long rod handle, long rod arbor to being provided with water-stop sheet slot,
Fixed support column is stretched out in bat pommel portion, for fixed disc bearing；Support bracket fastened internal radius is equal to the outer of rolling bearing
Footpath, upper and lower two fixed supports are set with outside upper and lower two rolling bearings by respective annulus, and upper fixed support
Open Side Down, the water-stop sheet slot opening upwards on the long rod handle of lower fixed support for water-stop sheet slot on long rod handle.
Fishtail type water-stop sheet is that surface is provided with the fishtail plastic plate of even level's groove, fishtail type water-stop sheet it is upper and lower
Both ends are inserted upper and lower two support bracket fastened water-stop sheet slot installations and fixed respectively, and make the tail end of fishtail type water-stop sheet outside；
The disk bearing of an embedded cylindrical roller is set with outside the fixation support column that support bracket fastened each bat pommel portion is stretched out, often
Four through holes are evenly distributed in the disc face of individual disk bearing；Arc perforate blade is that cross section is wing strip leaf
Piece, is vertically equidistantly provided with through hole on arc perforate blade, and the both ends of arc perforate blade set support column, arc perforate leaf
The support column of piece is stretched into the through hole of disk bearing and fixed；Four arc perforates are fixed between the disk bearing of each pair upper and lower corresponding
Blade, and the wing head of the arc perforate blade after fixing is inside, afterbody is outside, four arc perforate blades are in rotary shaft pair
Claim arrangement.
Fenestration drainage guard is a cylinder, and drainage window and jet exit are provided with equal intervals vertically on its surface；Same
One level height, the side of Fenestration drainage guard are provided with a drainage window, and opposite side is provided with two jet exits, and the drainage
It is empty in the barrel of Fenestration drainage guard between window and two jet exits, drainage window is connected with two jet exits；Institute
Central angle corresponding to the drainage window stated is 90 °, and central angle corresponding to described jet exit is 10 °；In Fenestration drainage guard
Region between upper each two drainage window circumferentially uniformly opens up netted open-end hole, connects the medial and lateral of Fenestration drainage guard.
For Fenestration drainage guard by plastics forming, the internal diameter of Fenestration drainage guard is equal to the external diameter of rolling bearing, Fenestration drainage guard
It is set in outside rolling bearing, and the upper/lower terminal of Fenestration drainage guard distinguishes adjacent upper and lower two fixed supports, and make to be provided with
The side of window is drained backwards to fishtail type water-stop sheet, drains the vertical center line of window and fishtail type water-stop sheet in same plane,
The acute angle that the line in jet exit center and the Fenestration drainage guard center of circle is formed with plane where fishtail type water-stop sheet is 60 °, is penetrated
Flow export face closes on the cambered surface of an arc perforate blade of fishtail type water-stop sheet.
The standpipe vortex-induced vibration suppression device combined with swing using described Fenestration drainage provide a kind of Fenestration drainage with
The standpipe vortex-induced vibration inhibiting method that swing combines.When the angle of attack be present between ocean current and fishtail type water-stop sheet, fishtail type water-stop sheet exists
Rotated under the impact of ocean current, until fishtail type water-stop sheet carries on the back stream side around to standpipe and is in same plane with ocean current flow direction.
On the one hand, ocean current from the netted open-end hole part of Fenestration drainage guard by, by the throttling and rectified action of netted open-end hole, ocean current
Flow direction and flow velocity are adjusted, while netted open-end hole makes being destroyed around laminar boundary layer around standpipe, exacerbates and streams border
The turbulence intensity of layer.On the other hand, ocean current from the drainage window of Fenestration drainage guard by along Fenestration drainage guard cylindrical wall
Interior interior empty passage flow to jet exit, and the wake zone for carrying on the back stream side to standpipe from the ocean current that jet exit ejects generates strongly
Disturbance, be squeezed afterbody vortex broken, in addition, jet exit eject ocean current impact arc perforate blade arc
On face, the rotation of arc perforate blade is promoted；And the current part stopped that throttled by the netted open-end hole of Fenestration drainage guard is transferred to
From drainage window by adding the flow of drainage window excessively stream, increasing the flow velocity of jet exit, accelerate arc perforate leaf
The rotating speed of piece.Because the netted open-end hole and drainage window of Fenestration drainage guard drum surface are alternately arranged so that ocean current is vertical
Direction generates the transfer of flowing, has disperseed the gross energy for streaming fluid.Under the impact of jet exit current, fishtail type water proof
The arc perforate blade direction of rotation of plate both sides is different, but by rotation on the inside of lateral standpipe outside standpipe so that external fluid
Momentum be injected into standpipe wall in laminar boundary layer, postpone the formation of vortex.Meanwhile part current are from arc perforate blade
Through hole flow through, make arc perforate blade during rotation to surrounding fluid produce depth perturbation action, destroy standpipe
Stream the formation of vortex.After current flow to standpipe back of the body stream side, fishtail type water-stop sheet splits both sides current, it is suppressed that the hair of vortex
Exhibition, and horizontal groove flowing of the part current along fishtail type water-stop sheet, are adjusted once more to the flow direction of current.Cause
And the netted open-end hole throttling in Fenestration drainage guard, drainage window water conservancy diversion, jet exit ejects stream, arc perforate blade revolves
Modulation is with boundary layer momentum and upsets spatial flow, the fishtail type water-stop sheet segmentation flowing space and the collective effect for adjusting flow direction
Under, standpipe is destroyed around laminar boundary layer by depth, change boundary layer separation point and three-dimensional wake spiral structure, make to stream stream
The turbulence intensity increase of field, it is suppressed that the formation of maelstrom, it is achieved thereby that the vortex-induced vibration of Non-energy-consumption suppresses.
For the present invention due to using above technical scheme, it has advantages below：
1. the fishtail type water-stop sheet of apparatus of the present invention can rotate under ocean current impact, rolling bearing and windowing are effectively driven
Drainage guard rotates, and whole device is adapted to the marine environment of flow direction change.
2. the netted open-end hole of apparatus of the present invention Fenestration drainage guard is crushed incoming a fluid stream, whole device is reduced
The resistance being subject to.
3. the current part that apparatus of the present invention Fenestration drainage guard jet exit sprays is impacted on fishtail type water-stop sheet,
And flowed along the horizontal groove on fishtail type water-stop sheet, sensitiveness of the fishtail type water-stop sheet to direction of flow is enhanced, preferably
Comply with incoming.
4. the fixed support of apparatus of the present invention, fishtail type water-stop sheet, Fenestration drainage guard and arc open-cell blade by
Light material is processed, and single unit system is in light weight, not perishable.
Brief description of the drawings
Fig. 1 is apparatus of the present invention dimensional structure diagram；
Fig. 2 is the dismounting figure of apparatus of the present invention；
Fig. 3 is apparatus of the present invention rotating bearing structure schematic diagram；
Fig. 4 is apparatus of the present invention fixed support and fishtail type water proof plate structure schematic diagram；
Fig. 5 is apparatus of the present invention disk bearing installation diagram；
Fig. 6 is apparatus of the present invention disk bearing schematic diagram；
Fig. 7 is apparatus of the present invention disk bearing and arc open-cell blade connection diagram；
Fig. 8 is apparatus of the present invention Fenestration drainage guard dimensional structure diagram；
Fig. 9 is apparatus of the present invention Fenestration drainage guard A-A profiles；
Figure 10 is the operation principle schematic diagram of apparatus of the present invention.
Wherein：1st, standpipe；2nd, rolling bearing；3rd, fixed support；4th, Fenestration drainage guard；5th, fishtail type water-stop sheet；6th, arc
Shape perforate blade；7th, disk bearing；8th, water-stop sheet slot；9th, window is drained；10th, jet exit.
Embodiment
The specific implementation to the present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, the standpipe vortex-induced vibration suppression device that a kind of Fenestration drainage is combined with swing, by swing module and is opened
Window drainage guard 4 forms.Swing module includes two 3, eight arcs of fixed support of disk bearing 7, two of rolling bearing 2, four
Shape perforate blade 6 and a fishtail type water-stop sheet 5.
As shown in figure 3, rolling bearing 2 is the inside and outside coil structures of embedded cylindrical roller, the internal diameter of rolling bearing 2 is equal to standpipe 1
External diameter, as shown in Fig. 2 upper and lower two rolling bearings 2 be fixed on by the height suit of the one Fenestration drainage guard 4 in interval it is vertical
The outer wall of pipe 1.The described height of rolling bearing 2 is 2 times of the height of fixed support 3.
As shown in figure 4, fixed support 3 is the three-toed claw-type structure that annulus side is connected with three rod handles, described three
The centre one of rod handle is long rod handle, and remaining two are the bat handles being arranged symmetrically on middle long rod handle, and long rod arbor is to opening
There is water-stop sheet slot 8, fixed support column is stretched out in bat pommel portion, for fixed disc bearing 7；The internal radius of fixed support 3
Equal to the external diameter of rolling bearing 2, upper and lower two fixed supports 3 are set with upper and lower two rotary shafts by respective annulus
Hold outside 2, and Open Side Down, the water-stop sheet on the long rod handle of lower fixed support 3 for the water-stop sheet slot 8 on the long rod handle of upper fixed support 3
The opening upwards of slot 8.
As shown in figure 4, fishtail type water-stop sheet 5, which is surface, is provided with the fishtail plastic plate of even level's groove, fishtail type every
The upper/lower terminal of water plate 5 insert respectively upper and lower two fixed supports 3 water-stop sheet slot 8 installation fix, and make fishtail type every
The tail end of water plate 5 is outside；As shown in figure 5, it is set with one outside the fixation support column that each bat pommel portion of fixed support 3 is stretched out
The disk bearing 7 of individual embedded cylindrical roller, the one end of disk bearing 7 are disc face, as shown in fig. 6, the disk of each disk bearing 7
Four through holes are evenly distributed on face；As shown in Fig. 2, Fig. 7, arc perforate blade 6 is that cross section is wing strip blade,
Through hole is vertically equidistantly provided with arc perforate blade 6, the both ends of arc perforate blade 6 set support column, arc perforate leaf
The support column of piece 6 is stretched into the through hole of disk bearing 7 and fixed；Four arcs are fixed between the disk bearing 7 of each pair upper and lower corresponding to open
Hole blade 6, and the wing head of the arc perforate blade 6 after fixing is inside, afterbody is outside, four arc perforate blades 6 are in rotation
Rotating shaft is arranged symmetrically.
As shown in figure 8, Fenestration drainage guard 4 is a cylinder, it is provided with drainage window 9 at equal intervals vertically on its surface and penetrates
Flow export 10；In same level height, the side of Fenestration drainage guard 4 is provided with a drainage window 9, and opposite side is provided with two and penetrated
Flow export 10, and it is empty in the barrel of the Fenestration drainage guard 4 between the drainage window 9 and two jet exits 10, make drainage window 9
Connected with two jet exits 10, as shown in Figure 9；Central angle corresponding to described drainage window 9 is 90 °, and described jet goes out
Central angle corresponding to mouth 10 is 10 °；Circumferentially uniformly open in region on Fenestration drainage guard 4 between each two drainage window 9
If netted open-end hole, connect the medial and lateral of Fenestration drainage guard 4.Fenestration drainage guard 4 is by plastics forming, Fenestration drainage
The internal diameter of guard 4 is equal to the external diameter of rolling bearing 2, and Fenestration drainage guard 4 is set in outside rolling bearing 2, and Fenestration drainage guard 4
Upper/lower terminal distinguish adjacent upper and lower two fixed supports 3, and the side for making to be provided with drainage window 9 is backwards to fishtail type water-stop sheet
5, the vertical center line and fishtail type water-stop sheet 5 of drainage window 9 are in same plane, the center of jet exit 10 and Fenestration drainage guard
The acute angle that the line in 4 centers of circle is formed with the place plane of fishtail type water-stop sheet 5 is 60 °, the face of jet exit 10 close on fishtail type every
The cambered surface of one arc perforate blade 6 of water plate 5.
As shown in Figure 10, the standpipe vortex-induced vibration suppression device combined using described Fenestration drainage with swing provides a kind of
The standpipe vortex-induced vibration inhibiting method that Fenestration drainage is combined with swing.When the angle of attack be present between ocean current and fishtail type water-stop sheet 5, fish tail
Formula water-stop sheet 5 rotates under the impact of ocean current, until fishtail type water-stop sheet 5 around to the back of the body stream side of standpipe 1 and with ocean current stream
To in same plane.On the one hand, ocean current from the netted open-end hole part of Fenestration drainage guard 4 by being throttled by netted open-end hole
And rectified action, the flow direction and flow velocity of ocean current are adjusted, at the same netted open-end hole make around standpipe 1 around laminar boundary layer by broken
It is bad, exacerbate the turbulence intensity around laminar boundary layer.On the other hand, ocean current passes through edge from the drainage window 9 of Fenestration drainage guard 4
The interior empty passage in the cylindrical wall of Fenestration drainage guard 4 flow to jet exit 10, the ocean current opposition ejected from jet exit 10
The wake zone of the back of the body stream of pipe 1 side generates strong disturbance, is squeezed afterbody vortex broken, in addition, jet exit 10 sprays
The ocean current gone out is impacted in the cambered surface of arc perforate blade 6, promotes arc perforate blade 6 to rotate；And by Fenestration drainage guard 4
The current part that netted open-end hole throttling stops is transferred to from drainage window 9 by adding the flow of the drainage excessively stream of window 9, increasing
The big flow velocity of jet exit 10, accelerate the rotating speed of arc perforate blade 6.Due to the net of the drum surface of Fenestration drainage guard 4
Shape through hole and drainage window 9 are alternately arranged so that ocean current generates the transfer of flowing in vertical direction, has disperseed to stream fluid
Gross energy.Under the impact of the current of jet exit 10, the direction of rotation of arc perforate blade 6 of the both sides of fishtail type water-stop sheet 5 is different,
But rotated by the lateral inner side of standpipe 1 outside standpipe 1 so that the momentum of external fluid be injected into the wall of standpipe 1 around laminar boundary layer
In, postpone the formation of vortex.Meanwhile part current flow through from the through hole on arc perforate blade 6, arc perforate blade 6 is set to exist
The perturbation action of depth is produced during rotation to surrounding fluid, destroys the formation that standpipe 1 streams vortex.Current flow to standpipe
Behind 1 back of the body stream side, fishtail type water-stop sheet 5 splits both sides current, it is suppressed that the development of vortex, and part current are along fishtail type water proof
The horizontal groove flowing of plate 5, is adjusted once more to the flow direction of current.Thus, in the netted logical of Fenestration drainage guard 4
Hole throttling, drainage window 9 water conservancy diversion, jet exit 10 eject stream, the rotation of arc perforate blade 6 allotment boundary layer momentum and upset
Spatial flow, fishtail type water-stop sheet 5 split the flowing space and adjustment flow direction collective effect under, make standpipe 1 around laminar boundary layer by
Destroyed to depth, change boundary layer separation point and three-dimensional wake spiral structure, increase the turbulence intensity of Flow Field, suppressed
The formation of maelstrom, it is achieved thereby that the vortex-induced vibration of Non-energy-consumption suppresses.
Embodiment：
Install apparatus of the present invention when, first install rolling bearing 2, it is determined that after the spacing for rotating up and down bearing 2, respectively by it is upper,
Lower rotary shaft is held 2 and is sleeved on from both sides on standpipe 1, is joined with bolts.Then, lower fixed support 3 is set in lower rotation
On bearing 2, and the water-stop sheet slot 8 on the long rod handle among lower fixed support 3 is upward.
Then, two disk bearings 7 are sleeved on to the fixation in two bat pommel portions of lower fixed support 3 from both sides respectively
On support column, it is joined with bolts；And insert four arc perforate blades 6 respectively in the through hole of the two disk bearings 7,
It is fixed with nut, and arc perforate blade 6 fixed on each disk bearing 7 is arranged in axisymmetry.
Then, the lower end of fishtail type water-stop sheet 5 is inserted in the water-stop sheet slot 8 on the long rod pommel of lower fixed support 3.From
Fenestration drainage guard 4 is inserted in top, Fenestration drainage guard 4 is set in outside rolling bearing 2, and the lower end of Fenestration drainage guard 4
Be close to lower fixed support 3, and make to be provided with the side of drainage window 9 backwards to fishtail type water-stop sheet 5, drainage window 9 it is vertical in
For heart line with fishtail type water-stop sheet 5 in same plane, the face of jet exit 10 closes on an arc perforate leaf of fishtail type water-stop sheet 5
The cambered surface of piece 6.
Then, two disk bearings 7 are taken to be sleeved on the fixation in two bat pommel portions of upper fixed support 3 from both sides respectively
On support column, it is joined with bolts.Then, fixed support 3 is inserted in the top for 2 being held in upper rotary shaft, and makes fixed prop up
Water-stop sheet slot 8 on the long rod handle in centre of frame 3 is downward, and the upper end of Fenestration drainage guard 4 is close to fixed support 3.Adjustment
Upper fixed support 3, make the through hole alignment of the alignment fishtail type of water-stop sheet slot 8 water-stop sheet 5, upper disk bearing 7 of fixed support 3
After support column on arc perforate blade 6, the upper end of fishtail type water-stop sheet 5 is inserted on the long rod pommel of upper fixed support 3 every
In water plate slot 8, two disk bearings 7 of the support column insertion top of the upper end of arc perforate blade 6, and consolidated with nut
It is fixed.
After installing, the standpipe 1 equipped with apparatus of the present invention is placed in marine environment and used.Ocean current and fishtail type water proof
When the angle of attack be present between plate 5, fishtail type water-stop sheet 5 rotates under the impact of ocean current, until fishtail type water-stop sheet 5 is around to standpipe
1 back of the body stream side and with ocean current flow direction be in same plane.On the one hand, ocean current leads to from the netted open-end hole part of Fenestration drainage guard 4
Cross, by the throttling and rectified action of netted open-end hole, the flow direction and flow velocity of ocean current are adjusted, while netted open-end hole makes standpipe 1 week
That encloses is destroyed around laminar boundary layer, exacerbates the turbulence intensity around laminar boundary layer.On the other hand, ocean current is from Fenestration drainage guard
4 drainage window 9 along the interior empty passage in the cylindrical wall of Fenestration drainage guard 4 by flowing to jet exit 10, from jet exit
The wake zone that 10 ocean currents ejected carry on the back stream side to standpipe 1 generates strong disturbance, is squeezed afterbody vortex broken, this
Outside, the ocean current that jet exit 10 ejects is impacted in the cambered surface of arc perforate blade 6, promotes arc perforate blade 6 to rotate；And
It is transferred to by the current part that the netted open-end hole throttling of Fenestration drainage guard 4 stops from drainage window 9 by adding drainage window
The flow of 9 excessively streams of mouth, the flow velocity of jet exit 10 is increased, accelerate the rotating speed of arc perforate blade 6.Due to Fenestration drainage net
The netted open-end hole and drainage window 9 for covering 4 drum surfaces are alternately arranged so that and ocean current generates the transfer of flowing in vertical direction,
The gross energy for streaming fluid is disperseed.Under the impact of the current of jet exit 10, the arc perforate leaf of the both sides of fishtail type water-stop sheet 5
The direction of rotation of piece 6 is different, but is rotated by the lateral inner side of standpipe 1 outside standpipe 1 so that the momentum of external fluid is injected into standpipe 1
Wall in laminar boundary layer, postpone the formation of vortex.Meanwhile part current flow through from the through hole on arc perforate blade 6, make
Arc perforate blade 6 produces the perturbation action of depth during rotation to surrounding fluid, destroys the shape that standpipe 1 streams vortex
Into.After current flow to the back of the body stream of standpipe 1 side, fishtail type water-stop sheet 5 splits both sides current, it is suppressed that the development of vortex, and part
Horizontal groove flowing of the current along fishtail type water-stop sheet 5, is adjusted once more to the flow direction of current.Thus, opening a window
The netted open-end hole throttling of drainage guard 4, drainage window 9 water conservancy diversion, jet exit 10 ejects stream, the rotation of arc perforate blade 6 is adjusted
With boundary layer momentum and upset spatial flow, under the collective effect that fishtail type water-stop sheet 5 splits the flowing space and adjustment flows to, make
Standpipe 1 is destroyed around laminar boundary layer by depth, changes boundary layer separation point and three-dimensional wake spiral structure, makes Flow Field
Turbulence intensity increases, it is suppressed that the formation of maelstrom, it is achieved thereby that the vortex-induced vibration of Non-energy-consumption suppresses.
Claims (3)
- A kind of 1. standpipe vortex-induced vibration suppression device that Fenestration drainage is combined with swing, by swing module and Fenestration drainage guard （4）Composition；Swing module includes two rolling bearings（2）, four disk bearings（7）, two fixed supports（3）, eight arcs Perforate blade（6）With a fishtail type water-stop sheet（5）；Rolling bearing（2）To embed the inside and outside coil structures of cylindrical roller, rotary shaft Hold（2）Internal diameter is equal to standpipe（1）External diameter, upper and lower two rolling bearings（2）By the one Fenestration drainage guard in interval（4）Height Degree suit is fixed on standpipe（1）Outer wall；Fishtail type water-stop sheet（5）The fishtail plastic plate of even level's groove is provided with for surface, Fishtail type water-stop sheet（5）Upper/lower terminal insert upper and lower two fixed supports respectively（3）Water-stop sheet slot（8）Installation is solid It is fixed, and make fishtail type water-stop sheet（5）Tail end it is outside；Disk bearing（7）Embedded cylindrical roller, one end is disc face；Its feature It is：Fixed support（3）The three-toed claw-type structure of three rod handles, the centre one of described three rod handles are connected with for annulus side Root is long rod handle, and remaining two are the bat handles being arranged symmetrically on middle long rod handle, and long rod arbor is to being provided with water-stop sheet slot （8）, fixed support column is stretched out in bat pommel portion, for fixed disc bearing（7）；Fixed support（3）Internal radius be equal to turn Dynamic bearing（2）External diameter, upper and lower two fixed supports（3）It is set with by respective annulus in upper and lower two rolling bearings （2）Outside, and upper fixed support（3）Water-stop sheet slot on long rod handle（8）Open Side Down, lower fixed support（3）On long rod handle Water-stop sheet slot（8）Opening upwards；In fixed support（3）Each bat pommel portion stretch out fixation support column outside be set with one Disk bearing（7）, each disk bearing（7）Disc face on be evenly distributed four through holes；Arc perforate blade（6）To be transversal Face is wing strip blade, in arc perforate blade（6）On be vertically equidistantly provided with through hole, arc perforate blade（6） Both ends set support column, arc perforate blade（6）Support column stretch into disk bearing（7）Through hole in it is fixed；Each pair is upper and lower right The disk bearing answered（7）Between fix four arc perforate blades（6）, and the arc perforate blade after fixing（6）Wing head Inwardly, afterbody is outside, four arc perforate blades（6）Arranged in axisymmetry；Fenestration drainage guard（4）For a cylinder, Its surface is provided with drainage window at equal intervals vertically（9）And jet exit（10）；In same level height, Fenestration drainage guard （4）Side be provided with one drainage window（9）, opposite side is provided with two jet exits（10）, and the drainage window（9）With two Jet exit（10）Between Fenestration drainage guard（4）Barrel in it is empty, make drainage window（9）With two jet exits（10）Even It is logical；In Fenestration drainage guard（4）Upper each two drains window（9）Between region circumferentially uniformly open up netted open-end hole, make out Window drains guard（4）Medial and lateral connection；Fenestration drainage guard（4）By plastics forming, Fenestration drainage guard（4）It is interior Footpath is equal to rolling bearing（2）External diameter, Fenestration drainage guard（4）It is set in rolling bearing（2）Outside, and Fenestration drainage guard（4） Upper/lower terminal distinguish adjacent upper and lower two fixed supports（3）, and make to be provided with drainage window（9）Side backwards to fishtail type every Water plate（5）, drain window（9）Vertical center line and fishtail type water-stop sheet（5）In same plane, jet exit（10）Face is faced Nearly fishtail type water-stop sheet（5）An arc perforate blade（6）Cambered surface.
- 2. the standpipe vortex-induced vibration suppression device that Fenestration drainage as claimed in claim 1 is combined with swing, it is characterised in that：Institute The drainage window stated（9）Corresponding central angle is 90 °, described jet exit（10）Corresponding central angle is 10 °；Described penetrates Flow export（10）Center and Fenestration drainage guard（4）The line in the center of circle and fishtail type water-stop sheet（5）The acute angle that place plane is formed For 60 °.
- A kind of 3. standpipe vortex-induced vibration inhibiting method that Fenestration drainage is combined with swing, using windowing as claimed in claim 1 Drain the standpipe vortex-induced vibration suppression device combined with swing, it is characterised in that：Ocean current and fishtail type water-stop sheet（5）Between exist attack During angle, fishtail type water-stop sheet（5）Rotated under the impact of ocean current, until fishtail type water-stop sheet（5）Around to standpipe（1）The back of the body Flow side and be in same plane with ocean current flow direction；On the one hand, ocean current is from Fenestration drainage guard（4）Netted open-end hole part by, By the throttling and rectified action of netted open-end hole, the flow direction and flow velocity of ocean current are adjusted, while netted open-end hole makes standpipe（1）Around Destroyed around laminar boundary layer, exacerbate the turbulence intensity around laminar boundary layer；On the other hand, ocean current is from Fenestration drainage guard （4）Drainage window（9）By along Fenestration drainage guard（4）Interior empty passage in cylindrical wall flow to jet exit（10）, from Jet exit（10）The ocean current ejected is to standpipe（1）The back of the body stream side wake zone generate strong disturbance, make afterbody vortex by To attrition crushing, in addition, jet exit（10）The ocean current ejected is impacted in arc perforate blade（6）Cambered surface on, promote arc Shape perforate blade（6）Rotation；And by Fenestration drainage guard（4）Netted open-end hole throttling stop current part be transferred to from drainage Window（9）By adding drainage window（9）The flow of excessively stream, increases jet exit（10）Flow velocity, accelerate arc and open Hole blade（6）Rotating speed；Due to Fenestration drainage guard（4）The netted open-end hole and drainage window of drum surface（9）It is alternately arranged, makes The transfer that ocean current generates flowing in vertical direction is obtained, has disperseed the gross energy for streaming fluid；In jet exit（10）Current Under impact, fishtail type water-stop sheet（5）The arc perforate blade of both sides（6）Direction of rotation is different, but by standpipe（1）It is outer lateral vertical Pipe（1）Inner side rotates so that the momentum of external fluid is injected into standpipe（1）Wall in laminar boundary layer, postpone the shape of vortex Into；Meanwhile part current are from arc perforate blade（6）On through hole flow through, make arc perforate blade（6）During rotation The perturbation action of depth is produced to surrounding fluid, destroys standpipe（1）Stream the formation of vortex；Current flow to standpipe（1）Back of the body stream side Afterwards, fishtail type water-stop sheet（5）Both sides current are split, it is suppressed that the development of vortex, and part current are along fishtail type water-stop sheet（5） Horizontal groove flowing, the flow direction of current is adjusted once more；Thus, in Fenestration drainage guard（4）It is netted logical Hole throttling, drainage window（9）Water conservancy diversion, jet exit（10）Eject stream, arc perforate blade（6）Rotation allotment boundary layer momentum With upset spatial flow, fishtail type water-stop sheet（5）Under the collective effect for splitting the flowing space and adjustment flow direction, make standpipe（1）Around Laminar boundary layer is destroyed by depth, changes boundary layer separation point and three-dimensional wake spiral structure, makes the turbulence of Flow Field strong Degree increase, it is suppressed that the formation of maelstrom, it is achieved thereby that the vortex-induced vibration of Non-energy-consumption suppresses.
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| CN201711055221.9A CN107701122B (en) | 2017-11-01 | 2017-11-01 | The standpipe vortex-induced vibration suppression device and method of a kind of Fenestration drainage in conjunction with swing |
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| CN111188815A (en) * | 2020-02-08 | 2020-05-22 | 西南石油大学 | Vibration suppression device and method for major-headed fish-shaped slotted flow guide injection and tail swinging |
| 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 |
| CN111287707A (en) * | 2020-02-19 | 2020-06-16 | 西南石油大学 | Device and method for realizing resistance reduction of thickened oil by utilizing wake flow to generate electricity and heat seawater |
| CN112796676A (en) * | 2021-02-20 | 2021-05-14 | 西南石油大学 | Bionic fish-shaped marine riser bypass flow control and vibration suppression device and method |
| CN113992060A (en) * | 2021-10-27 | 2022-01-28 | 西南石油大学 | Drainage and sliding pendulum combined synchronous vibration suppression and power generation device and method |
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