CN207739232U - A kind of Y type flaring gate piers with stilling pond combined energy dissipation - Google Patents
A kind of Y type flaring gate piers with stilling pond combined energy dissipation Download PDFInfo
- Publication number
- CN207739232U CN207739232U CN201820066043.3U CN201820066043U CN207739232U CN 207739232 U CN207739232 U CN 207739232U CN 201820066043 U CN201820066043 U CN 201820066043U CN 207739232 U CN207739232 U CN 207739232U
- Authority
- CN
- China
- Prior art keywords
- stilling pond
- slope
- flaring gate
- energy dissipation
- pier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
A kind of Y type flaring gate piers with stilling pond combined energy dissipation, including dam body (1), Y types flaring gate pier (2), overflow weir (3), opposite arc type slope (4), stilling pond (5), stilling pond back segment (6) and baffle pier (7), opposite arc type slope (4) connects stilling pond (5), it is characterised in that：The WES curves downstream and opposite arc type slope (4) that overflow weir (3) uses are tangent, and the tangent ramp slope is 1:0.75, the ogee section central angle on ogee section formula slope (4) is 53.13 degree, stilling pond is left-right asymmetry arrangement, and Y types flaring gate pier (2) includes 3 overflow surface bays (21), and the spillwag chute of overflow surface bay (21) is in " Y " font.The flaring gate pier solves the low disadvantage of traditional flaring pier energy dissipation efficiency, increases energy dissipation of the overfall dam to flow, to reduce flaring gate pier downstream side slope protection workload.
Description
Technical field
The utility model is related to overfall dam construction applications, and in particular to a kind of Y type flaring gate piers with stilling pond combined energy dissipation.
Background technology
Flaring gate pier is a kind of pioneering New Type Energy Dissipator in China, its working principle is that by by discharge structure gate pier tail portion
It thickeies so that the cross-section of river is shunk, and is caused flow to generate constricted jet after gate pier, by abundant aeration, is increased flow
Energy loss before entering pond.The pattern of flaring gate pier mainly has X-type, Y types, T-type, V-type etc., and the flaring gate pier of various types is in China
A large amount of application is obtained in hydraulic and hydroelectric engineering.However existing Y types flaring gate pier, since structure design is unreasonable, there are water
Slime flux goes out the phenomenon that abutment wall；Energy dissipating simultaneously is less efficient to cause flow punching hole deeper, increases the side slope protection workload in downstream.
Utility model content
The utility model is above-mentioned in order to solve the problems, such as, devises a kind of and stilling pond combined energy dissipation Y molded breadth tails
Pier, the flaring gate pier structure design is more reasonable, and efficiency efficiency improves, and prevents water flow dynamic energy too deep to downstream river course punching hole and increases
The workload of side slope protection, while having prevented the phenomenon that flow overflows abutment wall.
In order to achieve the above technical purposes, reach above-mentioned technique effect, the utility model is real by the following technical programs
Existing：
A kind of Y type flaring gate piers with stilling pond combined energy dissipation, including dam body, Y types flaring gate pier, overflow weir, opposite arc type are oblique
Slope, stilling pond, stilling pond back segment and baffle pier, opposite arc type slope connect stilling pond, it is characterised in that：The WES that overflow weir uses
Curve downstream and opposite arc type slope are tangent, and the tangent ramp slope is 1:0.75, the ogee section central angle on ogee section formula slope is
53.13 degree.
Preferably, the stilling pond is left-right asymmetry arrangement.
Preferably, the Y type flaring gate piers include 3 overflow surface bays, and the spillwag chute of overflow surface bay is in " Y " font.
The utility model has the beneficial effects that：The flaring gate pier structure design is more reasonable, and efficiency efficiency improves, and prevents flow
Kinetic energy cheats workload that is too deep and increasing side slope protection to downstream river course punching, while having prevented the phenomenon that flow overflows abutment wall.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of structural schematic diagram with the Y type flaring gate piers of stilling pond combined energy dissipation.
Fig. 2 is the overflow surface bay center line section steam two phase flow distribution map；
Fig. 3 is the stilling pond EL.3350m motion patterns；
Fig. 4 is the stilling pond EL.3369m motion patterns；
Fig. 5 is that the overflow surface bay center line section motion pattern X flows to distribution map；
Fig. 6 is that the overflow surface bay center line section motion pattern Y flows to distribution map；
Fig. 7 is the overflow surface bay center line section motion pattern；
Fig. 8 is the stilling pond EL.3369 side grain motion patterns；
Fig. 9 is the stilling pond floor pressure profile.
In attached drawing, parts list represented by the reference numerals are as follows：
1- dam bodys, 2-Y type flaring gate piers, 21- overflow surface bays, 3- overflow weirs, 4- opposite arc types slope, 5- stilling ponds, 6- disappear
Power pool back segment, 7- baffle piers.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The all other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in fig.1, a kind of with stilling pond combined energy dissipation Y type flaring gate piers, including dam body (1), Y types flaring gate pier (2),
Overflow weir (3), opposite arc type slope (4), stilling pond (5), stilling pond back segment (6) and baffle pier (7), opposite arc type slope (4) connect
Stilling pond (5), the WES curves downstream and opposite arc type slope (4) that overflow weir (3) uses are tangent, and the tangent ramp slope is 1:
0.75, the ogee section central angle on ogee section formula slope (4) is 53.13 degree.
Therein, the stilling pond (5) is left-right asymmetry arrangement.
Therein, the Y types flaring gate pier (2) includes 3 overflow surface bays (21), and the spillwag chute of overflow surface bay (21) is in
" Y " font.
One of the present embodiment has particular application as：The more power stations of the utility model combination fruit are verified, the more power stations of fruit
Overflow Section is located at bank to the right, segment length 41.00m in the middle part of riverbed and is made of 3 overflow surface bays, per hole clear span 9m, elevation of weir crest
3402.00m.Pier and the wide 3.5m of left and right abutment pier in overfall dam, overfall dam upstream weir cephalic flexure line use elliptic curve, upstream weir face
Vertical, overflow weir curve uses WES curves, curve downstream and 1:0.75 slope section is tangent, slope section with Radius 25m,
The ogee section that 53.13 ° of central angle connects stilling pond.Stilling pond plane bottom width is 38.75m × 70.0m (width x length), and floor elevation is
EL.3343.00m, end sill elevation EL.3351.00m.Stilling pond arrangement is left-right asymmetry, and stilling pond back segment landform is shunk, electricity
Dam Designs in Last standard of standing is 100 annual flood return periods, corresponding discharge 3410m3/s, upstream water level 3415.39m.
Fig. 2 show table hole (holes 2#) center line section steam two-phase flow distribution, and RED sector represents water phase, blue portion in figure
Divide and represent vapour phase, remaining color is steam two phase flow.As seen from the figure, flow is longitudinally drawn after water flows through the narrow slit between flaring gate pier
It opens, falls into stilling pond ogee section position in jet-like, and flow reaches abundant aeration state；The depth of water is larger in stilling pond, water level
Between 3370m~3374m, it is respectively 3350m elevations and 3369m in stilling pond that maximum water depth, which is about shown in 31m, Fig. 3 and Fig. 4,
Elevation flow motion pattern, as seen from the figure, water body mainstream are still located at stilling pond main part, but since stilling pond is not right in the plane
Claim arrangement, and shunk in exit site, leads between stilling pond mainstream and RightWall that there are eddy flow situations, maximum back-flow velocity to be
4.6m/s, flow are attributed to smooth-going after going out stilling pond；
Fig. 5 show middle table hole center line section flow X to velocity profile (X is to be just along river downstream), and Fig. 6 is shown
Middle table hole center line section flow Y-direction velocity profile (Y-direction is to be just upwards).As seen from the figure, overflow surface bay weir face flow rate of water flow
Before entering water to overflow after flaring gate pier be maximum flow rate distributed areas, flow along weir face maximum flow rate be 26.9m/s, wherein X to
Maximum flow rate is 16.1m/s, and Y-direction maximum flow rate is 21.6m/s；Nearly underflow speed is in 10m/s~13m/s, ogee section in stilling pond
Position (pile No. 0+068.00m) nearly underflow speed reaches maximum later, reaches 13m/s；Riverbed is close in stilling pond back segment research range
Underflow speed is 5m/s~10m/s, and the depth of water is about 10m；
Fig. 7 show middle table hole center line section motion pattern, and Fig. 8 show EL.3369m side grain motion patterns.As seen from the figure,
Mainstream is distributed mainly on stilling pond bottom in stilling pond, matches with energy dissipation by hydraulic jump rule；Fig. 9 show spillwag chute and stilling pond
Bottom plate pressure profile, as seen from the figure, spillwag chute pressure are smaller, and ogee section position (at overflow drop point) pressure is the most
It concentrates, maximum pressure is 2.9 × 105pa (29.65m water columns), is located at pile No. 0+062.00m；Stilling pond bottom plate pressure branch
In 2.52 × 105pa (25.7m water columns)~2.73 × 105pa (27.8m water columns), it is consistent substantially with water level in stilling pond；This reality
Combine stilling pond combined energy dissipation with novel tool, while the structure of flaring gate pier is improved, obtains preferable effect of energy dissipation.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained in at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiments or example
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, does not limit the specific implementation mode that the utility model is only described yet.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, to enable skilled artisan to be best understood by and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (3)
1. a kind of and stilling pond combined energy dissipation Y type flaring gate piers, it is characterised in that：Including dam body (1), Y types flaring gate pier (2), overflow
The faces Liu Yan (3), opposite arc type slope (4), stilling pond (5), stilling pond back segment (6) and baffle pier (7), opposite arc type slope (4), which connect, to disappear
The power pool (5), the WES curves downstream and opposite arc type slope (4) that overflow weir (3) uses are tangent, and the tangent ramp slope is 1:
0.75, the ogee section central angle on ogee section formula slope (4) is 53.13 degree.
2. a kind of Y type flaring gate piers with stilling pond combined energy dissipation according to claim 1, it is characterised in that：Described disappears
The power pool (5) is left-right asymmetry arrangement.
3. a kind of Y type flaring gate piers with stilling pond combined energy dissipation according to claim 1, it is characterised in that：The Y types
Flaring gate pier (2) includes 3 overflow surface bays (21), and the spillwag chute of overflow surface bay (21) is in " Y " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820066043.3U CN207739232U (en) | 2018-01-16 | 2018-01-16 | A kind of Y type flaring gate piers with stilling pond combined energy dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820066043.3U CN207739232U (en) | 2018-01-16 | 2018-01-16 | A kind of Y type flaring gate piers with stilling pond combined energy dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207739232U true CN207739232U (en) | 2018-08-17 |
Family
ID=63123396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820066043.3U Expired - Fee Related CN207739232U (en) | 2018-01-16 | 2018-01-16 | A kind of Y type flaring gate piers with stilling pond combined energy dissipation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207739232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281294A (en) * | 2018-10-24 | 2019-01-29 | 河北工程大学 | A kind of anti-arc step type overfall dam of adjustable energy dissipation by aeration |
-
2018
- 2018-01-16 CN CN201820066043.3U patent/CN207739232U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281294A (en) * | 2018-10-24 | 2019-01-29 | 河北工程大学 | A kind of anti-arc step type overfall dam of adjustable energy dissipation by aeration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104404926B (en) | Dam facing chooses the overfall dam of bank shunting energy dissipating | |
| CN205804298U (en) | A kind of drop formula energy dissipating construction being applicable to abrupt slope trapezoidal open channel draining | |
| CN102747716A (en) | Vertical seam type fishway structure | |
| CN102966082A (en) | Aeration facility with downward-bent base slab | |
| CN209221573U (en) | A kind of settling pit | |
| CN103266583A (en) | Bent slope underflow energy dissipation structure of water conservancy and hydropower engineering | |
| CN107386220B (en) | Gap split-flow type secondary dam structure | |
| CN103669301B (en) | The height bank absorption basin of double-layer disperse energy dissipating | |
| CN202626947U (en) | Picking flow type flaring pier of overflow dam | |
| CN207739232U (en) | A kind of Y type flaring gate piers with stilling pond combined energy dissipation | |
| CN103498451A (en) | Collision type combined underflow energy dissipater structure | |
| CN106930199A (en) | Improve the fairing of arc Box-shaped Drainage Culvert water outlet fluidised form | |
| CN203429607U (en) | Combination high-low threshold stilling pool with flow deflecting structure | |
| CN202688968U (en) | Vertical connection type fishway | |
| CN210049213U (en) | Spillway layering energy dissipation chute | |
| CN107663851A (en) | A kind of anti-cavitation curved Stepped Spillway of destruction | |
| CN103382717A (en) | Stepped energy dissipation method and energy dissipater through aerification in pre-positioned aerification tanks | |
| CN106013009A (en) | Multi-reverse-slope type stilling pool | |
| CN206667199U (en) | A kind of structure for adjusting release floodwatering flow distribution | |
| CN103437329A (en) | Combination type high-low threshold stilling pool provided with flow deflecting structure | |
| CN201447689U (en) | Water drawing device for mountain streams with high sand content and low flow | |
| CN203514274U (en) | Crashing type combined underflow energy dissipater structure | |
| CN204163061U (en) | Water power catch-drain energy-dissipating structure | |
| CN207582437U (en) | A kind of anti-cavitation curved Stepped Spillway of destruction | |
| CN109235626B (en) | Box-type bidirectional runner with built-in special-shaped thin plate type backflow eliminating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 Termination date: 20200116 |