CN209654841U - A kind of energy-dissipating structure in middle high water head aqueduct aerial drainage exit - Google Patents
A kind of energy-dissipating structure in middle high water head aqueduct aerial drainage exit Download PDFInfo
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- CN209654841U CN209654841U CN201920369418.8U CN201920369418U CN209654841U CN 209654841 U CN209654841 U CN 209654841U CN 201920369418 U CN201920369418 U CN 201920369418U CN 209654841 U CN209654841 U CN 209654841U
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Abstract
The utility model discloses a kind of energy-dissipating structures in middle high water head aqueduct aerial drainage exit, including aqueduct, level-one stilling pond, secondary stilling basin and the tailwater channel being made of general pipeline and branched pipe, branched pipe extends vertically into level-one stilling pond and is embedded in level-one force reduction pool bottom, branched pipe end side wall positioned at level-one force reduction pool bottom top sets multiple through holes, form more spray orifice sinkers, secondary stilling basin head end sets multiple diversion piers, is respectively provided with energy dissipating grid among adjacent guide pier, among diversion pier and secondary stilling basin abutment wall.The through hole of more spray orifice sinkers is using quincuncial arrangement of interlocking.The bottom of more spray orifice sinkers is blocked using back taper body, is mitigated bottom impact power adjustment water flow trend, is kept water flow smoothly spouting.The utility model structure is simple, energy dissipating is high-efficient, land occupation less, engineering construction and operating cost it is low, can efficiently solve pipeline water delivery engineering at aerial drainage exit and very emptying water flow high water head, small traffic engineering Energy dissipation of flood discharging problem.
Description
Technical field
The utility model relates to energy-dissipating structures, more particularly, to a kind of energy dissipating in middle high water head aqueduct aerial drainage exit
Structure.
Background technique
In China since water resource assignment is uneven, with the development of economy, many big and medium-sized cities especially north city
Since local water resource lacks, it is not able to satisfy the requirement of the national economic development and living standards of the people continuous improvement to water, it must not
Long distance water transfer is not built, and pipeline water delivery is optimal selection scheme.
Pipeline water delivery is of less demanding to geological conditions, filter loss is small, can guarantee quality of water conveyance, is easy for construction, cost compared with
The advantages that low, convenient for management.But there is very big drop in most of pipelines, after multi-stage pressure regulating tune stream pipeline exit still have
Higher residual water head, it is possible to pipe outlet building be caused to seriously endanger, how to be disappeared to this some residual energy
It can handle, be knowledge question of water conservancy urgently to be solved.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of disappearing for middle high water head aqueduct aerial drainage exit
Energy structure, can efficiently solve pipeline water delivery engineering water flow high water head, small traffic engineering at aerial drainage exit and very emptying
Energy dissipation of flood discharging problem.
The technical solution adopted in the utility model is: a kind of energy-dissipating structure in middle high water head aqueduct aerial drainage exit,
Aqueduct, level-one stilling pond, secondary stilling basin and tailwater channel, branched pipe including being made of general pipeline and branched pipe extend vertically into
Level-one stilling pond is simultaneously embedded in level-one force reduction pool bottom, and the branched pipe end side wall positioned at level-one force reduction pool bottom top sets multiple pass through
Through-hole, forms more spray orifice sinkers, and secondary stilling basin head end sets multiple diversion piers, among adjacent guide pier, diversion pier and second level
Energy dissipating grid is respectively provided among stilling pond abutment wall.
The through hole of more spray orifice sinkers is using quincuncial arrangement of interlocking.
The bottom of more spray orifice sinkers is blocked using back taper body, is mitigated bottom impact power adjustment water flow trend, is made
Water flow is smoothly spouting.
The utility model has the beneficial effects that energy dissipation rate is higher, water loss is small, is easily attached with downstream river course；Structure letter
It is single, energy dissipating is high-efficient, land occupation less, engineering construction and operating cost it is low, pipeline water delivery engineering can be efficiently solved and exported in aerial drainage
The Energy dissipation of flood discharging problem of water flow high water head when place and very emptying, small traffic engineering.
Detailed description of the invention
Fig. 1 is the floor plan of the energy-dissipating structure in high water head aqueduct aerial drainage exit in the utility model.
Fig. 2 is the sectional view of the energy-dissipating structure in high water head aqueduct aerial drainage exit in the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description:
As shown in Figure 1, 2, the energy-dissipating structure in the middle high water head aqueduct aerial drainage exit of the utility model, including by total
Aqueduct, level-one stilling pond 3, secondary stilling basin 7 and the tailwater channel that pipe 1 and branched pipe 2 are constituted, branched pipe 2 extend vertically into one
Grade stilling pond 3 is simultaneously embedded in level-one force reduction pool bottom, and the 2 end side wall of branched pipe positioned at level-one force reduction pool bottom top sets multiple pass through
Through-hole, forms more spray orifice sinkers 4, and 7 head end of secondary stilling basin sets multiple diversion piers 5, among adjacent guide pier 5, diversion pier 5 with
Energy dissipating grid 6 is respectively provided among 7 abutment wall of secondary stilling basin.
It is preferred that the through hole of more spray orifice sinkers 4 is using quincuncial arrangement of interlocking.
The bottom of more spray orifice sinkers 4 is blocked using back taper body 8, mitigates bottom impact power adjustment water flow trend,
Keep water flow smoothly spouting.
The diameter of general pipeline 1 is determined by carrying capacity or emptying total amount.The diameter and radical of branched pipe 2 are total by carrying capacity or emptying
Amount determines.
The energy dissipating hole of more spray orifice sinkers 4 mostly uses staggeredly quincuncial arrangement, and the more effect of energy dissipation of hole count are better, but work as
When hole count increases certain amount, effect of energy dissipation is obviously reduced.The bottom of more spray orifice sinkers 4 is blocked using back taper body, can be with
Mitigate bottom impact power adjustment water flow trend, keeps water flow smoothly spouting.More spray orifice sinkers 4 are made using multiply multilayer spray orifice
In the involute suction of the first stilling pond 3, blending after water flow high speed ejection, strong turbulent flow is formed to cut down the residue of pipeline exit
Energy, sinker, which shakes, in order to prevent acutely occurs to destroy and sinker bottom need to be embedded in force reduction pool bottom.This more spray orifices
The Energy Dissipation Modes effect of energy dissipation that sinker 4 is combined with energy dissipation by hydraulic jump is good, and energy dissipation rate is higher.
Diversion pier 5 prevents from washing away left and right side slope for adjusting water flow tendency.Energy dissipating grid 6 among diversion pier can be used for
Rectification and further energy dissipating.The further energy dissipating of secondary stilling basin 7 is convenient for being connected with downstream.
The utility model branched pipe 2 extends vertically into level-one stilling pond 3 and is embedded in stilling pond, and end sets energy dissipating hole, is formed
The synthesis Energy Dissipation Modes of more spray orifice sinkers 4 and energy dissipation by hydraulic jump.After the spray orifice that lower sluicing flows through sinker makes water flow high speed ejection
In stilling pond curls inward suction, blending, strong turbulent flow is formed to cut down most of dump energy of pipeline exit, then through water conservancy diversion
Pier adjusts water flow, energy dissipating grid and the further energy dissipating of secondary stilling basin.This energy-dissipating structure, energy dissipation rate is higher, and water loss is small,
It is easily attached with downstream river course.
Embodiment described above is merely to illustrate the technical idea and feature of the utility model, and its object is to make ability
Technical staff in domain, cannot be only practical to limit with the present embodiment it will be appreciated that the content of the utility model and implement accordingly
Novel the scope of the patents, i.e., same changes or modifications made by the revealed spirit of all the utility model, it is practical new still to fall in this
In the scope of the patents of type.
Claims (3)
1. a kind of energy-dissipating structure in middle high water head aqueduct aerial drainage exit, including what is be made of general pipeline (1) and branched pipe (2)
Aqueduct, level-one stilling pond (3), secondary stilling basin (7) and tailwater channel, which is characterized in that branched pipe (2) extends vertically into level-one
Stilling pond (3) is simultaneously embedded in level-one force reduction pool bottom, and branched pipe (2) end side wall positioned at level-one force reduction pool bottom top sets multiple
Through hole forms more spray orifice sinkers (4), and secondary stilling basin (7) head end is set multiple diversion piers (5), in adjacent guide pier (5)
Between, among diversion pier (5) and secondary stilling basin (7) abutment wall be respectively provided with energy dissipating grid (6).
2. the energy-dissipating structure in high water head aqueduct aerial drainage exit according to claim 1, which is characterized in that described more
The through hole of spray orifice sinker (4) is using quincuncial arrangement of interlocking.
3. the energy-dissipating structure in high water head aqueduct aerial drainage exit according to claim 1, which is characterized in that described more
The bottom of spray orifice sinker (4) is blocked using back taper body (8), is mitigated bottom impact power adjustment water flow trend, is kept water flow smooth
It is spouting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920369418.8U CN209654841U (en) | 2019-03-21 | 2019-03-21 | A kind of energy-dissipating structure in middle high water head aqueduct aerial drainage exit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920369418.8U CN209654841U (en) | 2019-03-21 | 2019-03-21 | A kind of energy-dissipating structure in middle high water head aqueduct aerial drainage exit |
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| CN209654841U true CN209654841U (en) | 2019-11-19 |
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| CN201920369418.8U Active CN209654841U (en) | 2019-03-21 | 2019-03-21 | A kind of energy-dissipating structure in middle high water head aqueduct aerial drainage exit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076619A (en) * | 2021-11-15 | 2022-02-22 | 中水珠江规划勘测设计有限公司 | Energy dissipation and flow measurement system for water supply pipeline |
-
2019
- 2019-03-21 CN CN201920369418.8U patent/CN209654841U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076619A (en) * | 2021-11-15 | 2022-02-22 | 中水珠江规划勘测设计有限公司 | Energy dissipation and flow measurement system for water supply pipeline |
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