CN109706899A - Chamfer skew bucket structure - Google Patents
Chamfer skew bucket structure Download PDFInfo
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- CN109706899A CN109706899A CN201811394161.8A CN201811394161A CN109706899A CN 109706899 A CN109706899 A CN 109706899A CN 201811394161 A CN201811394161 A CN 201811394161A CN 109706899 A CN109706899 A CN 109706899A
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- bank
- skew
- rightwall
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- leftwall
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Abstract
The present invention relates to water conservancy and hydropower sluicing facility fields, especially one kind is in the biggish situation of operating head polishing luffing, by preferably adjusting flow direction so as to adjust choosing angle, and overflow drop point can be made to be in the beveling skew bucket structure of perfect condition always, including leftwall and RightWall, it is provided between the leftwall and RightWall and chooses bank runner bottom surface structure, the bank runner bottom surface structure of choosing is constituted by choosing to paste angle inclined-plane on the right side of bank and choose inclined-plane on the left of bank.The present invention is to the change of original structure also very little, but very cleverly effect can be obtained, it is big to be particularly suitable for operating water level amplitude of fluctuation, and underwater bed is narrow, so that trajectory nappe easily pounds this bank when small flow, big flow Shi Zeyi washes away opposite bank, and its large and small flow rate working conditions is difficult to the case where taking into account.
Description
Technical field
The present invention relates to water conservancy and hydropower sluicing facility field, especially a kind of beveling skew bucket structure.
Background technique
According to the applicable elements of sluicing energy dissipation below spillway mode, in the discharge structure of middle and high head, the lower stream that sluices is moved
Can be larger, frequently with flip trajectory bucket mode in engineering.
When downstream river course is narrow, lets out fluted shaft line and the larger river center line angle of cut, in order to make trajectory nappe choose fall in it is pre-
Fixed position, mitigates influence of the trajectory nappe to bank slope, often selects beveling skew bucket.It chamfers Kan Kanding and flow direction is oblique
It hands over, chooses away from evolution with distance；Bottom plate is arranged to the continuous pinch plane that long abutment wall side is high, short side wall side is low by distortion bank, makes overflow in sky
Middle overturning simultaneously falls in riverbed approximate centerline.Beveling skew bucket is integrated with the advantages of bank and skew bucket are chosen in beveling, transports extensively
The bank discharge structure narrow for river valley.
Under the biggish engineering specifications of operating water level luffing, as the requirement for meeting low water level operating condition and not pounding this bank, Yi Caiyong
It is larger to choose angle, the farther away design scheme of sater professionals；But under the narrow orographic condition of underwater bed, this scheme is in high water head work
When condition, sater professionals are again excessive, seriously wash away opposite bank so as to cause water flow, cause the consequence for being unfavorable for opposite bank stability of slope.
Vice versa, when meeting high water head operating condition and not washing away opposite bank, preferably use it is smaller choose away from scheme, but this scheme is in low-head operating
When operating condition, choose away from again it is too small, water flow, which is pounded, falls this bank, influence choose camphyl plinth and this bank stability of slope.
Therefore conventional flip trajectory bucket structure under discharge operating conditions at different levels, is chosen away from differing larger, in narrow valley region, it is difficult to
Meet the service requirement of the biggish discharge structure of operating water level luffing.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind in the biggish situation of operating head polishing luffing, by preferable
Adjustment flow direction so as to adjust choosing angle, and overflow drop point can be made to be in the beveling skew bucket structure of perfect condition always.
The technical solution adopted by the present invention to solve the technical problems is: beveling skew bucket structure, including leftwall and
RightWall is provided between the leftwall and RightWall and chooses bank runner bottom surface structure, and the bank runner bottom surface structure of choosing is by choosing
Patch angle inclined-plane is constituted with inclined-plane on the left of bank is chosen on the right side of bank.
Further, the bank patch angle inclined-plane of choosing is close to RightWall side.
Further, horizontal plane is lower than horizontal plane where leftwall bottom where the RightWall bottom.
Further, the leftwall and RightWall are bell-mouth structure of air.
Further, the bell-mouth structure of air is hatch frame along water (flow) direction.
Further, the RightWall is vertical with patch angle inclined-plane on the right side of bank is chosen.
Further, the leftwall is vertical with inclined-plane on the left of bank is chosen.
The beneficial effects of the present invention are: the present invention is ingenious to construct " the high side in side is low " of choosing bank runner bottom surface structure
Design feature, and the characteristic of " water is past to be located in stream " is combined, obtain very ideal solution, it may be assumed that in low water level operating condition,
Flow velocity is lower, and fluid inertia power is relatively small, larger by water body effect of weight, at this point, water flow, which easily concentrates on, chooses bank runner bottom
Lower choose pastes inclined-plane side in angle on the right side of bank in the structure of face, pools as main flow area, and ultimately forms and have ideal overflow drop point
State；And in high water level operating condition, water flow is since mainly by inertia force influence, mainstream is still to let out slot axis direction, water at this time
The convergence effect of stream then reduces, and the overflow drop point formed is equally very ideal.It is such design also ensure that no matter water
Head size, can form the ideal overflow of drop point.The present invention can but obtain very skilful the change of original structure also very little
It is big to be particularly suitable for operating water level amplitude of fluctuation for wonderful effect, and underwater bed is narrow, so that the trajectory nappe when small flow
This bank easily is pounded, big flow Shi Zeyi washes away opposite bank, and its large and small flow rate working conditions is difficult to the case where taking into account.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram after Fig. 1 removal RightWall.
In the figure, it is marked as RightWall 1, leftwall 2, choosing inclined-plane 3 on the left of bank, choosing and paste angle inclined-plane 4 on the right side of bank.
Specific embodiment
The following further describes the present invention with reference to the drawings.
Beveling skew bucket structure as shown in Figure 1 and Figure 2, including leftwall 2 and RightWall 1, the leftwall 2 and the right side
It is provided between abutment wall 1 and chooses bank runner bottom surface structure, the bank runner bottom surface structure of choosing is by choosing patch angle inclined-plane 4 on the right side of bank and choosing bank
Left side inclined-plane 3 is constituted.
It is existing to choose bank structure, fluted shaft is let out once downstream river course below is narrow since structure designs existing defect
When line and the larger river center line angle of cut, just it will appear because water flow pounds and falls this bank caused by head is small, or led because head is big
The water flow of cause seriously washes away the case where opposite bank.It is special with the respective flowing of head hour greatly that head is very cleverly utilized in the present invention
The characteristics of putting and choosing bank runner bottom surface structure is chosen by setting and pastes angle inclined-plane 4 on the right side of bank, to make the mainstream of low water level operating condition
Area, which raises, chooses point height, and angle is chosen in increasing, can effectively increase and choose away from solving the problems, such as that low water level operating condition overflow pounds this bank.And
High water level main flow area structural shape is constant, does not influence its overflow mainstream form and drop point.To increase the water choosing bank operation and adapting to
Level amplitude area.Concretely, in low water level operating condition, flow velocity is lower, and fluid inertia power is relatively small, by water body from ghost image
Sound is larger, at this point, water flow easily concentrates on and chooses lower choose in bank runner bottom surface structure and paste inclined-plane 4 side in angle on the right side of bank, pools
For main flow area, and ultimately form the state with ideal overflow drop point；And in high water level operating condition, water flow is due to mainly by inertia
Power influences, and mainstream is still to let out slot axis direction, and the convergence effect of water flow then reduces at this time, and the overflow drop point formed is equally very
Ideal.Present inventive concept based on being fully understood to water flow flow behavior, have devised to original structure change it is small, but
Very creative Technological improvement plan.
In conjunction with actual water flow feature, preferably described choose pastes angle inclined-plane 4 as close to 1 side of RightWall on the right side of bank.Such as Fig. 1 institute
Show, in this way in low water level operating condition, flow velocity is lower, and water flow is mainly converged at close to 1 side of RightWall, chooses to effectively increase
Away from obtaining ideal overflow drop point.In conjunction with the practical flow feature of water flow, horizontal plane where preferably described 1 bottom of RightWall is lower than
Horizontal plane where 2 bottom of leftwall.To guarantee that water flow will not fly to overflow when head is higher via leftwall 2.
In general, it is preferred that the leftwall 2 and RightWall 1 are bell-mouth structure of air, thus for the formation of ideal overflow form
Support in structure is provided.It is preferred that the bell-mouth structure of air is hatch frame along water (flow) direction.It is excellent in order to reduce the difficulty of construction
Select the RightWall 1 vertical with patch angle inclined-plane 4 on the right side of bank is chosen, and preferably the leftwall 2 is vertical with inclined-plane 3 on the left of bank is chosen,
To guarantee the smooth flow of water flow.
Claims (7)
1. skew bucket structure, including leftwall (2) and RightWall (1) are chamfer, between the leftwall (2) and RightWall (1)
Be provided with and choose bank runner bottom surface structure, it is characterised in that: it is described choose bank runner bottom surface structure by choose on the right side of bank patch angle inclined-plane (4) and
It chooses on the left of bank inclined-plane (3) and constitutes.
2. beveling skew bucket structure as described in claim 1, it is characterised in that: bank patch angle inclined-plane (4) of choosing is close
RightWall (1) side.
3. beveling skew bucket structure as claimed in claim 2, it is characterised in that: horizontal where RightWall (1) bottom
Face is lower than horizontal plane where leftwall (2) bottom.
4. beveling skew bucket structure as claimed in claim 1,2 or 3, it is characterised in that: the leftwall (2) and RightWall
It (1) is bell-mouth structure of air.
5. beveling skew bucket structure as claimed in claim 4, it is characterised in that: the bell-mouth structure of air is along water (flow) direction
Hatch frame.
6. beveling skew bucket structure as claimed in claim 1,2 or 3, it is characterised in that: the RightWall (1) and choose bank the right side
The side inclined-plane Tie Jiao (4) is vertical.
7. beveling skew bucket structure as claimed in claim 1,2 or 3, it is characterised in that: the leftwall (2) and choose bank a left side
Skew back face (3) is vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394161.8A CN109706899A (en) | 2018-11-21 | 2018-11-21 | Chamfer skew bucket structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394161.8A CN109706899A (en) | 2018-11-21 | 2018-11-21 | Chamfer skew bucket structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109706899A true CN109706899A (en) | 2019-05-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811394161.8A Pending CN109706899A (en) | 2018-11-21 | 2018-11-21 | Chamfer skew bucket structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109706899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095554A (en) * | 2020-08-26 | 2020-12-18 | 四川大学 | Combined type lifting and falling flow bucket suitable for narrow and deep river valley |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736718A (en) * | 2009-12-17 | 2010-06-16 | 四川大学 | Reversely bevelled flip bucket |
| WO2011125072A2 (en) * | 2010-04-05 | 2011-10-13 | Jayantibhai Prabhuram Patel | Water velocity enhancement in canal structure for low head electrical power generation system/turbine |
| CN203129107U (en) * | 2013-03-05 | 2013-08-14 | 西北农林科技大学 | Split-flow flow-deflecting energy dissipator |
| CN103498452A (en) * | 2013-10-17 | 2014-01-08 | 中国水电顾问集团北京勘测设计研究院有限公司 | Narrow seam flip bucket structure of high-gradient narrow river valley release structure |
| CN203741791U (en) * | 2013-12-20 | 2014-07-30 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Flood discharge, energy dissipation and erosion control facility structure |
| CN104404925A (en) * | 2014-10-08 | 2015-03-11 | 四川大学 | Porous inflow hedging energy dissipation structure of hydraulic structure |
| CN106120673A (en) * | 2016-06-30 | 2016-11-16 | 四川大学 | The turning spillway being applicable under high Froude number |
| CN205934872U (en) * | 2016-08-12 | 2017-02-08 | 中国电建集团成都勘测设计研究院有限公司 | Bank is chosen to multistage formula of cutting sth. askew |
| CN106894399A (en) * | 2017-04-19 | 2017-06-27 | 中国水利水电科学研究院 | Structure and method for adjusting flood discharge water flow distribution |
| CN107513985A (en) * | 2017-08-10 | 2017-12-26 | 四川大学 | A kind of afterbody abutment wall recession formula defrlector bucket |
| CN206928257U (en) * | 2017-06-22 | 2018-01-26 | 中国电建集团成都勘测设计研究院有限公司 | A kind of distortion and ligulate choose the flip trajectory bucket structure that bank is combined |
| CN108560480A (en) * | 2018-03-15 | 2018-09-21 | 四川大学 | A kind of variable curvature open channel bend |
| CN209652885U (en) * | 2018-11-21 | 2019-11-19 | 中国电建集团成都勘测设计研究院有限公司 | Chamfer skew bucket structure |
-
2018
- 2018-11-21 CN CN201811394161.8A patent/CN109706899A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736718A (en) * | 2009-12-17 | 2010-06-16 | 四川大学 | Reversely bevelled flip bucket |
| WO2011125072A2 (en) * | 2010-04-05 | 2011-10-13 | Jayantibhai Prabhuram Patel | Water velocity enhancement in canal structure for low head electrical power generation system/turbine |
| CN203129107U (en) * | 2013-03-05 | 2013-08-14 | 西北农林科技大学 | Split-flow flow-deflecting energy dissipator |
| CN103498452A (en) * | 2013-10-17 | 2014-01-08 | 中国水电顾问集团北京勘测设计研究院有限公司 | Narrow seam flip bucket structure of high-gradient narrow river valley release structure |
| CN203741791U (en) * | 2013-12-20 | 2014-07-30 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Flood discharge, energy dissipation and erosion control facility structure |
| CN104404925A (en) * | 2014-10-08 | 2015-03-11 | 四川大学 | Porous inflow hedging energy dissipation structure of hydraulic structure |
| CN106120673A (en) * | 2016-06-30 | 2016-11-16 | 四川大学 | The turning spillway being applicable under high Froude number |
| CN205934872U (en) * | 2016-08-12 | 2017-02-08 | 中国电建集团成都勘测设计研究院有限公司 | Bank is chosen to multistage formula of cutting sth. askew |
| CN106894399A (en) * | 2017-04-19 | 2017-06-27 | 中国水利水电科学研究院 | Structure and method for adjusting flood discharge water flow distribution |
| CN206928257U (en) * | 2017-06-22 | 2018-01-26 | 中国电建集团成都勘测设计研究院有限公司 | A kind of distortion and ligulate choose the flip trajectory bucket structure that bank is combined |
| CN107513985A (en) * | 2017-08-10 | 2017-12-26 | 四川大学 | A kind of afterbody abutment wall recession formula defrlector bucket |
| CN108560480A (en) * | 2018-03-15 | 2018-09-21 | 四川大学 | A kind of variable curvature open channel bend |
| CN209652885U (en) * | 2018-11-21 | 2019-11-19 | 中国电建集团成都勘测设计研究院有限公司 | Chamfer skew bucket structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095554A (en) * | 2020-08-26 | 2020-12-18 | 四川大学 | Combined type lifting and falling flow bucket suitable for narrow and deep river valley |
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