CN205742106U - A kind of variable cross-section flush gallery system being applicable to high depth of water reservoir - Google Patents
A kind of variable cross-section flush gallery system being applicable to high depth of water reservoir Download PDFInfo
- Publication number
- CN205742106U CN205742106U CN201620736583.9U CN201620736583U CN205742106U CN 205742106 U CN205742106 U CN 205742106U CN 201620736583 U CN201620736583 U CN 201620736583U CN 205742106 U CN205742106 U CN 205742106U
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- Prior art keywords
- sand discharge
- gallery
- section
- sand
- cross
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 113
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000001186 cumulative Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
This utility model provides a kind of variable cross-section flush gallery system being applicable to high depth of water reservoir, including sand discharge Main Corridor road, the multiple sand discharges importing sand discharge Main Corridor road prop up gallery, sand discharge Main Corridor road passes dam body, each sand discharge is propped up the top of gallery and is interval with multiple sand discharge body, it is positioned at sand discharge and props up the sand discharge body layout on gallery top in netted, and the spacing of all adjacent sand discharge bodies is equal, described sand discharge body is the cylinder of inner hollow, described sand discharge body surrounding sidewall is provided with vertical narrow slit shape sand discharge hole, sand discharge is propped up the cross section of gallery and is gradually increased to cross section, direction, sand discharge Main Corridor road by end.This utility model can at Low investment, quote under less letdown flow, relatively large region silt is made to be transported to downstream river course by this gallery, thus reduce reservoir sedimentation, ensure that power-house runs safety, extension device service life, reduce power station and cross machine silt, recover downstream near-nature forest state as far as possible.
Description
Technical field
This utility model relates to Hydraulic and Hydro-Power Engineering technical field, a kind of variable cross-section being applicable to high depth of water reservoir
Flush gallery system.
Background technology
Along with Modern Construction Technology and the raising of design level, river is large-scale developed and utilized by the mankind, builds
A collection of large reservoir and Inter-Basin Water Transfer Project, these hydraulic engineerings bring while playing enormous benefits for the mankind the most therewith
Adverse effect.Wherein, the Sediment Siltation problem caused because of reservoir is one of main adverse effect, and Sediment Siltation destroys nature
The transporting of current Middle nutrition material, change downstream river course coastal line state, destroy shipping condition and shorten the reservoir life-span
Deng.
On the one hand processing mode to upper pond shoal materials is to make its recycling, another aspect the most at present
Engineering measure is taked to make silt be delivered to downstream river course so that it is closer to naturalness.Silt is delivered to downstream pathway machinery
Conveying, its deficiency is that cost of investment is high, it is low to produce effects, and engineering measure is the most then to build desilting tunnel, bottom hole for sand flushing etc., its shortcoming
Being that sand discharge is limited in scope, be only capable of taking away silt in the range of sand surfing funnel, meanwhile, the lower discharge of needs is also big, damages accordingly
Lose productive head, indirectly decreased generated energy, affect economic benefit.Traditional flush gallery there is also gallery in flow velocity not
Uniformly, easily silted up the problem blocked by silt.Therefore, the sand discharge building seeking the investment of a kind of efficient sand discharge low cost is suitable
Answer the act of the certainty of Practical Project operation present situation.
Utility model content
For deficiencies of the prior art, this utility model provides a kind of variable cross-section being applicable to high depth of water reservoir
Flush gallery system, and can at Low investment, quote under less letdown flow, make relatively large region silt by this gallery quilt
It is delivered to downstream river course, thus reduces reservoir sedimentation, it is ensured that power-house runs safety, extension device service life, reduction
Machine silt, as far as possible recovery downstream near-nature forest state are crossed in power station.
The technical solution adopted in the utility model is as follows:
A kind of variable cross-section flush gallery system being applicable to high depth of water reservoir, including sand discharge Main Corridor road, imports sand discharge Main Corridor
Multiple sand discharges in road prop up gallery, and sand discharge Main Corridor road passes dam body, and each sand discharge is propped up the top of gallery and is interval with multiple sand discharge body,
Being positioned at sand discharge to prop up the sand discharge body on gallery top and arrange in netted, and the spacing of all adjacent sand discharge bodies is equal, described sand discharge
Body is the cylinder of inner hollow, and described sand discharge body surrounding sidewall is provided with vertical narrow slit shape sand discharge hole, and sand discharge props up cutting of gallery
Face is gradually increased to cross section, direction, sand discharge Main Corridor road by end.
Further, sand discharge is propped up gallery and is vertically arranged with sand discharge Main Corridor road.
Further, the width in described sand discharge hole is 0.2m.
Further, it is D that sand discharge props up cross section internal diameter at the sand discharge body of gallery end, props up at gallery each sand discharge body along sand discharge
Cross section internal diameter is followed successively by
This utility model props up gallery by arranging the multiple sand discharges importing sand discharge Main Corridor road, in may be implemented in a big way
Bottom of the reservior realize sand discharge rather than be confined to dam before certain point, thus effectively keep the utilizable capacity of reservoir, sand discharge Main Corridor road is worn
Cross dam body, can significantly save quantities, ensure that the structural strength of dam to greatest extent；Sand discharge props up the setting of sand discharge body on gallery
Can be when flush gallery system entirety flow be certain, it is ensured that the flow velocity near sand discharge hole is much larger than the startup stream of bottom of the reservior silt
Speed, thus prevent the Sediment Siltation near sand discharge hole, on the other hand effectively control letdown flow, ensure reservoir to greatest extent
Economic benefit and Function unaffected；Sand discharge is propped up the cumulative design in cross section of gallery and is made sand discharge prop up the flow velocity base in gallery
This uniformly prevents the abrasion to flush gallery and destruction while ensureing effectively to discharge silt.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram that this utility model is applicable to the variable cross-section flush gallery system of high depth of water reservoir；
Fig. 2 be in Fig. 1 A-A to side view；
Fig. 3 is that this utility model sand discharge is propped up gallery and is positioned at sand discharge and props up the plan structure schematic diagram of gallery top sand discharge body；
Fig. 4 be in Fig. 3 B-B to side view.
In figure: 1 sand discharge Main Corridor road, 2 sand discharges prop up gallery, 3 sand discharge bodies, 4 sand discharge holes.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model, the technical scheme in this utility model is carried out clearly and completely
Describe.
Refer to Fig. 1 and Fig. 2, this utility model is applicable to the variable cross-section flush gallery system of high depth of water reservoir and includes sand discharge
Multiple sand discharges in Main Corridor road 1 and remittance sand discharge Main Corridor road 1 prop up gallery 2, and engineering, through dam body, can significantly be saved in sand discharge Main Corridor road 1
Amount, ensure that the structural strength of dam to greatest extent, and makes flush gallery system can realize the real-time unified of sediment transport discharge
Control；Multiple sand discharges are propped up the setting of gallery 2 and be may be implemented in before the bottom of the reservior in a big way realizes sand discharge rather than be confined to dam,
Thus effectively keep the utilizable capacity of reservoir.Sand discharge is propped up gallery 2 and can be vertically arranged with sand discharge Main Corridor road 1.
Each sand discharge is propped up the top of gallery 2 and is interval with multiple sand discharge body 3, please further refer to Fig. 3 and Fig. 4, described row
The husky body 3 cylinder in inner hollow, is provided with vertical narrow slit shape sand discharge hole 4, and the width in described sand discharge hole 4 at its surrounding sidewall
Degree is 0.2m.This design is on the one hand when flush gallery system entirety flow is certain, it is ensured that the flow velocity near sand discharge hole is long-range
In the start velocity of bottom of the reservior silt, thus prevent the Sediment Siltation near sand discharge hole；On the other hand letdown flow is effectively controlled,
Ensure that economic benefit and the Function of reservoir are unaffected to greatest extent.
It is positioned at sand discharge to prop up the sand discharge body 3 on gallery 2 top and arrange in netted, the spacing phase of the most all adjacent sand discharge bodies 3
Deng.This design has played the region sand control ability of flush gallery system to greatest extent.Utilize bottom of the reservior silt shape after suction
The angle of repose become realizes being uniformly distributed of sand dune, bottom of the reservior, controls the sand dune height after suction to greatest extent.
Sand discharge is propped up the cross section of gallery 2 and is gradually changed along journey.Its Changing Pattern is: prop up the row of gallery 2 end a sand discharge
At husky body 3, cross section internal diameter is D, is gradually increased to cross section, direction, sand discharge Main Corridor road 1, props up along sand discharge and cut at gallery 2 each sand discharge body 3
Face internal diameter is followed successively by The flow velocity that this design makes sand discharge prop up in gallery is substantially uniform,
Both will not cause silt sediment in flush gallery owing to flow velocity is too low, cavitation, mill will not have been caused again owing to flow velocity is too high
Damage and structural destruction, affect flush gallery system lifetim.
This utility model props up gallery 2 by arranging the multiple sand discharges importing sand discharge Main Corridor road 1, in may be implemented in a big way
Bottom of the reservior realize sand discharge rather than be confined to dam before certain point, thus effectively keep the utilizable capacity of reservoir, sand discharge Main Corridor road
1 passes dam body, can significantly save quantities, ensure that the structural strength of dam to greatest extent；Sand discharge props up sand discharge body 3 on gallery
Setting can be when flush gallery system entirety flow be certain, it is ensured that the flow velocity near sand discharge hole is much larger than the startup of bottom of the reservior silt
Flow velocity, thus prevent the Sediment Siltation near sand discharge hole, on the other hand effectively control letdown flow, ensure water to greatest extent
Economic benefit and the Function in storehouse are unaffected；Sand discharge is propped up the cumulative design in cross section of gallery 2 and is made sand discharge prop up the stream in gallery 2
Speed is substantially uniform, prevents the abrasion to flush gallery and destruction while ensureing effectively to discharge silt.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to
In this, any belong to those skilled in the art in the technical scope that this utility model discloses, the change that can readily occur in
Change or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with power
The protection domain that profit requires is as the criterion.
Claims (4)
1. it is applicable to a variable cross-section flush gallery system for high depth of water reservoir, including sand discharge Main Corridor road (1), it is characterised in that:
Also including that the multiple sand discharges importing sand discharge Main Corridor road (1) prop up gallery (2), sand discharge Main Corridor road (1) passes dam body, and each sand discharge props up corridor
The top in road (2) is interval with multiple sand discharge body (3), be positioned at sand discharge prop up gallery (2) top sand discharge body (3) arrange in netted,
And the spacing of all adjacent sand discharge bodies (3) is equal, the described sand discharge body (3) cylinder in inner hollow, described sand discharge body
(3) surrounding sidewall is provided with vertical narrow slit shape sand discharge hole (4), and sand discharge props up the cross section of gallery (2) by end to sand discharge Main Corridor road (1)
Cross section, direction is gradually increased.
It is applicable to the variable cross-section flush gallery system of high depth of water reservoir the most as claimed in claim 1, it is characterised in that: sand discharge is propped up
Gallery (2) is vertically arranged with sand discharge Main Corridor road (1).
It is applicable to the variable cross-section flush gallery system of high depth of water reservoir the most as claimed in claim 1, it is characterised in that: described row
The width of husky hole (4) is 0.2m.
It is applicable to the variable cross-section flush gallery system of high depth of water reservoir the most as claimed in claim 1, it is characterised in that: sand discharge is propped up
Sand discharge body (1) cross section, the place internal diameter of gallery (2) end is D, props up gallery (2) each sand discharge body (3) cross section, place internal diameter along sand discharge and depends on
Secondary it is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620736583.9U CN205742106U (en) | 2016-07-13 | 2016-07-13 | A kind of variable cross-section flush gallery system being applicable to high depth of water reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620736583.9U CN205742106U (en) | 2016-07-13 | 2016-07-13 | A kind of variable cross-section flush gallery system being applicable to high depth of water reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205742106U true CN205742106U (en) | 2016-11-30 |
Family
ID=57378475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620736583.9U Active CN205742106U (en) | 2016-07-13 | 2016-07-13 | A kind of variable cross-section flush gallery system being applicable to high depth of water reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205742106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013005A (en) * | 2016-07-13 | 2016-10-12 | 长江水利委员会长江科学院 | Variable cross section desilting gallery system suitable for high-water-depth reservoir |
| CN110144861A (en) * | 2019-06-05 | 2019-08-20 | 黄河勘测规划设计研究院有限公司 | A kind of the sand discharge structure and method of heavily silt-carrying river natural flow station |
-
2016
- 2016-07-13 CN CN201620736583.9U patent/CN205742106U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013005A (en) * | 2016-07-13 | 2016-10-12 | 长江水利委员会长江科学院 | Variable cross section desilting gallery system suitable for high-water-depth reservoir |
| CN110144861A (en) * | 2019-06-05 | 2019-08-20 | 黄河勘测规划设计研究院有限公司 | A kind of the sand discharge structure and method of heavily silt-carrying river natural flow station |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |