CN106948318B - The floated whirlpool girder system that disappears that moves for eliminating water inlet vertical-axis eddy is united - Google Patents
The floated whirlpool girder system that disappears that moves for eliminating water inlet vertical-axis eddy is united Download PDFInfo
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- CN106948318B CN106948318B CN201710168416.8A CN201710168416A CN106948318B CN 106948318 B CN106948318 B CN 106948318B CN 201710168416 A CN201710168416 A CN 201710168416A CN 106948318 B CN106948318 B CN 106948318B
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- Prior art keywords
- whirlpool
- disappears
- water inlet
- water
- vertical
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
Abstract
The floated whirlpool girder system that disappears that moves that the invention discloses a kind of for eliminating water inlet vertical-axis eddy is united, it includes the vertical guide rail being arranged on the face wall surface of water inlet hole that it, which is constituted, it can slide up and down sliding machine along vertical guide rail, be suspended in the water surface for eliminating disappearing for vertical-axis eddy and whirlpool beam and be set to the water inlet originally hoist engine of downstream two sides on the bank.Disappear one end of whirlpool beam be mounted on trolley by the plane branch hinge that can be turned round in horizontal plane, and wirerope of the water inlet originally on the bank on the hoist engine of downstream two sides is arranged in and connect with the towing point to disappear on the beam of whirlpool, disappears whirlpool beam in the position of the water surface to control to adjust.The whirlpool beam that disappears of the invention can float up and down with the variation of water level, can before hole water surface Plane Rotation, have many advantages, such as that adaptation head range is wide, amplitude of fluctuation is big, forms volume gas vertical-axis eddy before water inlet can be prevented, then eliminate vertical-axis eddy to the adverse effect of each building.
Description
Technical field
The invention belongs to hydraulic and hydroelectric engineering technical fields, in particular to for eliminating intake or diversion tunnel import etc.
The facility of the vertical-axis eddy at position.
Background technique
For the hydraulic and hydroelectric engineerings such as intake or diversion tunnel import, when water inlet depth of the water submerging is between generation vertical shaft whirlpool
When between the lower limit water level and upper limit water level in whirlpool, volume gas vertical-axis eddy just may be formed before water inlet.Particularly with water level
The biggish engineering of amplitude of fluctuation is easy to the shape before water inlet after the water flow before water inlet has the condition for generating circular rector
At the volume gas vertical-axis eddy of penetrability.Vertical-axis eddy once being formed, not only will affect discharge capacity, and more seriously,
The irregular vibration of building can be caused simultaneously by influencing discharge capacity, and then endanger the operational safety of building.
In the design of intake, usually empirically formula determines reasonable depth of immersion, to avoid intake or water conservancy diversion
Tunnel import forms vertical shaft volume gas whirlpool, however, the formation boundary condition due to vertical-axis eddy is more complicated, designed water intaking
Vertical-axis eddy often can still occur for mouth or diversion tunnel.Biggish engineering is endangered for certain vertical-axis eddies, need to supplement to build and disappear
Whirlpool measure, common counteracting vortex mainly includes the fixed whirlpool beam that disappears, the whirlpool plate that disappears, disappear whirlpool column (group) etc., but these facilities exist
The defects of adapting to small head range, vertical-axis eddy narrow range, the vertical-axis eddy being unable to satisfy under different water levels, different location are eliminated
Task.
Summary of the invention
The prior art be used for eliminate vertical-axis eddy facility the state of the art and there are aiming at the problem that, the present invention is directed to mention
For a kind of brand new can float up and down with SEA LEVEL VARIATION and can Plane Rotation the floated whirlpool beam that disappears, to solve existing skill
Art it is small for eliminating the existing head range that adapts to of water inlet vertical-axis eddy facility, the problems such as vertical-axis eddy narrow range.
Fundamental design idea of the invention: one suspension that can be floated up and down with water level of design disappears whirlpool beam, utilizes the whirlpool beam that disappears
Block water flow formed generate vertical-axis eddy circular rector, eliminate before intake or diversion tunnel import water level between occur whirlpool under
It restricts water supply the vertical-axis eddy that will be formed between position and upper limit water level, influence to avoid vertical-axis eddy to discharge capacity and to water conservancy project
The harm of building operational safety.
The removable suspension for being used to eliminate water inlet vertical-axis eddy that the present invention is provided for technical problem to be solved
Formula disappear whirlpool girder system system, technical solution composition include: the vertical guide rail being arranged on the face wall surface of water inlet hole, can along vertical guide rail
The sliding machine slided up and down is suspended in the water surface for eliminating whirlpool beam and setting water inlet originally downstream two on the bank that disappear of vertical-axis eddy
One end of the hoist engine of side, the whirlpool beam that disappears is mounted on trolley by the plane branch hinge that can be turned round in horizontal plane, is arranged in water inlet
Originally the wirerope on the bank on the hoist engine of downstream two sides is connect with two side-lining of whirlpool beam that disappears, and control adjustment disappears whirlpool beam in the position of the water surface
It sets.
In above-mentioned technical proposal of the invention, in order to improve the stability of suspension beam, preferably it is arranged on water inlet opposite bank
One hoist engine, makes its wirerope and the whirlpool beam outer end traction that disappears connects.
In above-mentioned technical proposal of the invention, the structure of said vortex reducing beam can decision design at including metal material
The floating drum made in truss from flexible material is arranged in and for filling the water into floating drum and the water injection from floating drum internal drainage in truss
It pumps, there is in water injection process for being vented and the air throttle of air inlet design on the floating drum.The truss decision design is at top
The truss of open rectangle section, the swollen floating drum that rushes being arranged in truss are fixed in truss with several ribbed belt；It may be designed as
Tubular truss, floating drum are placed directly in tubular truss, are not required in addition be carried out with ribbed belt particular fixed.The design of suspension beam needs to protect
Barrier floating drum rush it is swollen after the volume energy balance whirlpool beam self weight whirlpool beam that makes to disappear that disappears be suspended in the water surface and top is not higher than water surface 5cm.Floating drum
Generally use rubber production.
In above-mentioned technical proposal of the invention, two water pumps are can be used in the water injection pump, and one to floating drum for infusing
The water injecting pump of water, a draining pump for being drained from inside to outside from floating drum.A water pump can also be used, by change water pump into
Effluent pipe mouth connects direction, fills the water to realize to floating drum or drains from inside to outside from floating drum.Latter approach operation is more troublesome, but
Facility cost can be reduced.It is preferred that former mode.
In above-mentioned technical proposal of the invention, the length of the vertical guide rail should be the whirlpool beam that can make to disappear with the water surface in the upper limit
It floats between water level and lower limit water level.
In above-mentioned technical proposal of the invention, be arranged in water inlet originally on the bank the wirerope on the hoist engine of downstream two sides in
The towing point to disappear on the beam of whirlpool, position are preferably located at away from water inlet hole face (1/2~2/3) beam length.
In above-mentioned technical proposal of the invention, disappear whirlpool beam vertical direction diameter (height) d priority acccess control as follows
In range:
D=(0.1~0.3) D
D is the diameter of irrigating gate.
In above-mentioned technical proposal of the invention, the beam length L priority acccess control of said vortex reducing beam in the following range: are as follows:
L=(0.75~1) D
D is the diameter of irrigating gate.
The floated whirlpool girder system that disappears that moves provided by the present invention for eliminating water inlet vertical-axis eddy is united, and water injection is passed through
Pump and the air throttle being arranged on floating drum, realize and inject a certain amount of water and air into floating drum, ensure that the whirlpool beam that disappears is suspended in into water
In the water surface before mouthful.Disappear whirlpool beam one end by can horizontal plane turn round the hinged structure of branch be mounted on sliding machine, slide it is small
Vehicle is slided up and down along vertically disposed guide rail, and the volume energy after constituting the floating drum inflation for the whirlpool beam that disappears balances the whirlpool beam self weight that disappears, so that
The whirlpool beam that disappears can float up and down with water level height variation, be suspended in the water surface always and top is not higher than water surface 5cm.Further through setting
Water inlet originally on the bank the hoist engine on downstream both sides and setting water inlet opposite bank hoist engine, ensure that disappear whirlpool beam stable suspersion in
The position that vertical-axis eddy before water inlet occurs, and can be adjusted according to the variation of vertical-axis eddy position, it can eliminate because of side
Boundary changes the vertical-axis eddy formed in different location, improves the discharge capacity of water inlet, avoids initiation building irregular
Vibration, eliminates the harm to hydraulic structure operational safety, i.e., the whirlpool girder system provided by the invention that disappears is united can be with the variation of water level
And float up and down and the water surface Plane Rotation before water inlet, have many advantages, such as to adapt to that head range is wide, amplitude of fluctuation is big, it can be effective
Volume gas vertical-axis eddy is formed before preventing water inlet, then eliminates vertical-axis eddy to the adverse effect of each building.
In the actual implementation process, the design for the whirlpool beam that disappears is usually directed to following calculation formula to the present invention:
FBuoyancy=GAlways (1)
FBuoyancy=ρ gVUnder water (2)
VUnder water=SUnder waterL (3)
SUnder water=SFloating drum bottom-SIt is waterborne (4)
SFloating drum bottom=0.25 π d2 (5)
A=kd-0.5d (7)
GAlways=GFloating drum+GTruss+GWater+GTrolley+GAuxiliary (9)
GFloating drum=ρRubbergSFloating drum (10)
SFloating drum=0.25 π d2+πdL (11)
GTruss=ρReinforcing barg∑nili (12)
GTrolley=GCar body+GWheel (13)
GAuxiliary=GPump+GValve+GLimnimeter+GOther (14)
The meaning of each symbol is as follows in above-mentioned formula:
FBuoyancy- disappear buoyancy suffered by the beam of whirlpool, N；
GBuoyancy- disappear whirlpool beam gross weight, including the weight, truss weight, trolley weight of filled water in floating drum weight, floating drum, its
The weight of his auxiliary, N；
ρ-water density, 1000kg/m3；
VUnder water- disappear the following partial volume of the whirlpool beam floating drum water surface, m3；
SUnder water- disappear the following area of the whirlpool beam floating drum bottom surface water surface, m2；
SFloating drum bottom- disappear whirlpool beam floating drum floor space, m2；
SUnder water- disappear the following area of the whirlpool beam floating drum bottom surface water surface, m2；
SIt is waterborne- disappear whirlpool beam floating drum bottom surface water surface above section area, m2；
L-disappears whirlpool beam length, L=(1.5~2) × 0.5D=(0.75~1) D, m, and wherein D is irrigating gate diameter, m；
D-disappears whirlpool beam floating drum basal diameter, (0.1~0.3) D, m；
A-water surface is higher by the height in the whirlpool beam floating drum bottom surface center of circle that disappears, m；
B-water surface cuts the whirlpool beam floating drum bottom surface chord length that disappears, m；
K-disappears the ratio between whirlpool beam floating drum depth of immersion and floating drum Ground Diameter, and the whirlpool back portion that disappears in the design needs substantially and water
Face flushes or the slightly above water surface, and proud exposure controls within 5cm, therefore k value is close to 1；
GFloating drum- disappear whirlpool beam floating drum weight, N；
GTruss- disappear whirlpool beam pontoon surface truss weight, N；
GTrolley- disappear whirlpool beam trolley weight, N, including car body weight GCar body, wheel weight GWheel；
GBuoyancyThe weight of filled water, N in the-whirlpool beam floating drum that disappears；
GAuxiliaryThe weight of-whirlpool beam the auxiliary part that disappears, N, including water pump weight GAuxiliary, floating drum air throttle weight GValve, electronic water
Position instrument GLimnimeterAnd other include the weight G of floating drum and trolley coupling part etc.Other；
ρRubberThe quality of-rubberized fabric the unit area used in the beam floating drum of whirlpool that disappears, kg/m2；
SFloating drum- whirlpool beam the pontoon surface that disappears product, m2；
ρReinforcing barThe quality of-reinforcing bar the unit length used in the beam pontoon surface truss of whirlpool that disappears, kg/m；
ni, li- the reinforcing bar used in the beam pontoon surface truss of whirlpool that disappears is by using length to classify, niFor the quantity of the i-th class, liIt is
The joint length of i class, m；
H-disappears the depth of the injected water of whirlpool beam floating drum, m.
Detailed description of the invention
Attached drawing 1 is the overlooking structure diagram for moving the floated whirlpool beam that disappears.
Attached drawing 2 be move it is floated disappear whirlpool beam vertical river cross-wise direction view structural schematic diagram.
Attached drawing 3-1 be in attached drawing 2 A-A to cross section structure schematic diagram.
Attached drawing 3-2 is B-B direction cross section structure schematic diagram in attached drawing 2.
The object of each shown by reference numeral mark is respectively as follows: 1-and disappears whirlpool beam in above-mentioned attached drawing；2-plane branch twist；3-slidings are small
Vehicle；4-guide rails；5-hoist engines；6-disappear whirlpool beam rotary motion trace line；7-whirlpools may occurrence scope envelope；8-traction steel
Cable；9-throttle valves；10-draining pumps；11-water injecting pumps.
Specific embodiment
Explanation provides the embodiment of the present invention with reference to the accompanying drawing, and is made further by embodiment to the present invention
It is bright, in order to be more readily understood that the present invention.But it is important to note that a specific embodiment of the invention is not limited to down
Form described in the embodiment of face, those skilled in the art without creative efforts, can also be easy to
Other specific embodiments are designed on ground, therefore the embodiment of specific embodiment given below should not be interpreted as this hair
Protection scope of the present invention is limited in given embodiment by bright protection scope.
Embodiment
The floated whirlpool girder system that disappears that moves that the present embodiment is used to eliminate water inlet vertical-axis eddy is united, structure such as attached drawing 1,
Shown in attached drawing 2, attached drawing 3-1 and attached drawing 3-2, structure includes that the single that is fixed above water inlet on the face wall surface of hole is vertical
Guide rail 4 can slide up and down sliding machine 3 along vertical guide rail, be suspended in the water surface for eliminating the whirlpool beam 1 that disappears of vertical-axis eddy, if
The 3# hoist engine 5 of water inlet this bank upstream side is set, the 2# hoist engine and setting water inlet of this bank of water inlet downstream side are set
The 1# hoist engine on opposite bank, one end of the whirlpool beam that disappears are mounted on trolley by the plane branch hinge 2 that can be turned round in horizontal plane, setting into
Towing point of the mouth of a river originally on the bank among the wirerope 8 on the hoist engine of downstream two sides and the whirlpool beam that disappears on outside connect, to control tune
The whole whirlpool beam that disappears is in the position of the water surface, the wirerope 8 being arranged on the 1# hoist engine on water inlet opposite bank and the towing point to disappear on the beam outer end of whirlpool
Connection, with enhance disappear whirlpool beam the water surface stability；The length of the vertical guide rail is restricted water supply with the water surface upper for the whirlpool beam that can make to disappear
It floats between position and lower limit water level；The composition of said vortex reducing beam, the steel material truss including upper opening rectangular section, setting exist
The floating drum made in truss by rubber, water injecting pump 11 on truss for filling the water into floating drum and water is discharged out of floating drum
Draining pump 10 constitute, design has the throttle valve 9 for being used to be vented and in drainage procedure for inflation in the injecting process on floating drum, floating
Cylinder is fixed in truss with several ribbed belt；The whirlpool beam that disappears in diameter (floating drum inflation after diameter) d of vertical direction is irrigating gate
0.2 times of diameter D, the length L for the whirlpool beam that disappears are 1 times of irrigating gate diameter D；After the whirlpool beam whole design that disappears should be able to be such that floating drum inflates
Volumetric balance disappears the self weight of whirlpool beam and the whirlpool beam that makes to disappear is suspended in the water surface, and top is not higher than water surface 5cm.Setting water inlet originally on the bank
Wirerope on the hoist engine of downstream two sides is in the towing point on the whirlpool beam that disappears, positioned at the position away from 2/3 beam length of water inlet hole face.
Claims (9)
1. a kind of floated whirlpool girder system that disappears that moves for eliminating water inlet vertical-axis eddy is united, it is characterised in that: including fixation
Vertical guide rail (4) above water inlet on hole face wall surface is set, the sliding machine (3) that can slide up and down along vertical guide rail, is hanged
It bubbles through the water column for eliminating the whirlpool beam (1) that disappears of vertical-axis eddy, being set to the water inlet originally hoist engine (5) of downstream two sides on the bank, disappears
One end of whirlpool beam is mounted on sliding machine by the plane branch hinge that can be turned round in horizontal plane, and setting is in water inlet originally downstream on the bank
Wirerope (8) on the hoist engine (5) of two sides is connect with two side-lining of whirlpool beam that disappears, and disappears whirlpool beam in the position of the water surface to control adjustment
It sets；Said vortex reducing beam includes the truss of metal material, the floating drum made in truss from flexible material is arranged in and is used for floating drum
Interior fill the water pumps with from the water injection of floating drum internal drainage, there is in water injection process for being vented and the section of air inlet design on the floating drum
Air valve (9).
2. it is according to claim 1 for eliminating the floated whirlpool girder system system that disappears that moves of water inlet vertical-axis eddy, it is special
Sign is: a hoist engine is arranged on water inlet opposite bank, wirerope and the whirlpool beam outer end traction that disappears connect, to improve the stabilization of suspension beam
Property.
3. the floated whirlpool girder system that disappears that moves according to claim 1 or 2 for eliminating water inlet vertical-axis eddy is united,
Be characterized in that: the truss for constituting the whirlpool beam that disappears is the rectangular cross section truss of upper opening, and the floating drum in truss is arranged in several
Ribbed belt is fixed in truss.
4. the floated whirlpool girder system that disappears that moves according to claim 1 or 2 for eliminating water inlet vertical-axis eddy is united,
Be characterized in that: the volume after floating drum inflation is can balance the be self-possessed whirlpool beam that makes to disappear of the whirlpool beam that disappears to be suspended in the water surface and top is not higher than the water surface
5cm。
5. the floated whirlpool girder system that disappears that moves according to claim 1 or 2 for eliminating water inlet vertical-axis eddy is united,
Be characterized in that: the water injection pump includes that the water injecting pump (11) for being used to fill the water into floating drum outside floating drum is arranged in and is used for floating drum
The draining pump (10) of interior water discharge.
6. the floated whirlpool girder system that disappears that moves according to claim 1 or 2 for eliminating water inlet vertical-axis eddy is united,
Be characterized in that: the length of the vertical guide rail is floated between upper limit water level and lower limit water level for the whirlpool beam that can make to disappear with the water surface.
7. the floated whirlpool girder system that disappears that moves according to claim 1 or 2 for eliminating water inlet vertical-axis eddy is united,
Be characterized in that: water inlet is arranged in, and originally the junction of the wirerope and the whirlpool beam that disappears on the hoist engine of downstream two sides is defined as drawing on the bank
Point, the length for the whirlpool beam that disappears that length of the towing point away from water inlet hole face is 1/2~2/3.
8. the floated whirlpool girder system that disappears that moves according to claim 1 or 2 for eliminating water inlet vertical-axis eddy is united,
Be characterized in that: disappear whirlpool beam vertical direction diameter d are as follows:
D=(0.1~0.3) D
D is the diameter of irrigating gate.
9. the floated whirlpool girder system that disappears that moves according to claim 1 or 2 for eliminating water inlet vertical-axis eddy is united,
It is characterized in that: the length L of said vortex reducing beam are as follows:
L=(0.75~1) D
D is the diameter of irrigating gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168416.8A CN106948318B (en) | 2017-03-21 | 2017-03-21 | The floated whirlpool girder system that disappears that moves for eliminating water inlet vertical-axis eddy is united |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168416.8A CN106948318B (en) | 2017-03-21 | 2017-03-21 | The floated whirlpool girder system that disappears that moves for eliminating water inlet vertical-axis eddy is united |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106948318A CN106948318A (en) | 2017-07-14 |
| CN106948318B true CN106948318B (en) | 2019-04-23 |
Family
ID=59473446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710168416.8A Expired - Fee Related CN106948318B (en) | 2017-03-21 | 2017-03-21 | The floated whirlpool girder system that disappears that moves for eliminating water inlet vertical-axis eddy is united |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106948318B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217651A (en) * | 2017-07-28 | 2017-09-29 | 中国电建集团成都勘测设计研究院有限公司 | Whirlpool vortex reducing means |
| CN116201085B (en) * | 2023-04-27 | 2023-07-07 | 江苏沙河抽水蓄能发电有限公司 | Water inlet and outlet joint vortex eliminating device of pumped storage power station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213396A (en) * | 2001-01-16 | 2002-07-31 | Mitsubishi Heavy Ind Ltd | Water suction device of pump |
| KR20060096703A (en) * | 2005-03-02 | 2006-09-13 | 인정웅 | Eddy prevention apparatus for siphon |
| CN205934871U (en) * | 2016-08-05 | 2017-02-08 | 浙江水利水电学院 | Marine structure delivery port whirlpool device that disappears |
| CN205935062U (en) * | 2016-07-13 | 2017-02-08 | 王斐 | Eliminate pump station intake pool surface whirlpool device |
-
2017
- 2017-03-21 CN CN201710168416.8A patent/CN106948318B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213396A (en) * | 2001-01-16 | 2002-07-31 | Mitsubishi Heavy Ind Ltd | Water suction device of pump |
| KR20060096703A (en) * | 2005-03-02 | 2006-09-13 | 인정웅 | Eddy prevention apparatus for siphon |
| CN205935062U (en) * | 2016-07-13 | 2017-02-08 | 王斐 | Eliminate pump station intake pool surface whirlpool device |
| CN205934871U (en) * | 2016-08-05 | 2017-02-08 | 浙江水利水电学院 | Marine structure delivery port whirlpool device that disappears |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106948318A (en) | 2017-07-14 |
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Granted publication date: 20190423 Termination date: 20210321 |