CN106013005A - Variable cross section desilting gallery system suitable for high-water-depth reservoir - Google Patents
Variable cross section desilting gallery system suitable for high-water-depth reservoir Download PDFInfo
- Publication number
- CN106013005A CN106013005A CN201610550275.1A CN201610550275A CN106013005A CN 106013005 A CN106013005 A CN 106013005A CN 201610550275 A CN201610550275 A CN 201610550275A CN 106013005 A CN106013005 A CN 106013005A
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- China
- Prior art keywords
- gallery
- sand discharge
- desilting
- section
- variable cross
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Classifications
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- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Barrages (AREA)
Abstract
The invention provides a variable cross section desilting gallery system suitable for a high-water-depth reservoir. The variable cross section desilting gallery system comprises a main desilting gallery and a plurality of branch desilting galleries gathered into the main desilting gallery. The main desilting gallery penetrates a dam, a plurality of desilting bodies are arranged at the top ends of each row of branch desilting galleries at intervals, and the desilting bodies located at the top ends of the branch desilting galleries are arranged in a net shape. The distances between the adjacent desilting bodies are equal. The desilting bodies are in a hollow cylinder shape. Vertical narrow-gap-shaped desilting holes are formed in the peripheral side walls of the desilting bodies. The cross sections of the branch desilting galleries are gradually increased in the direction from the tail end to the main desilting gallery. According to the variable cross section desilting gallery system, silt in a relatively large area passes through the galleries to be conveyed to a downstream river channel with the low investment and by utilization of small discharged flow, and therefore reservoir sedimentation is reduced, running safety of power station buildings is guaranteed, the service life of equipment is prolonged, the power station machine passing silt is reduced, and the down stream is recovered to the state close to the natural state as much as possible.
Description
Technical field
The present invention relates to Hydraulic and Hydro-Power Engineering technical field, specifically one and be applicable to high depth of water water
The variable cross-section flush gallery system in storehouse.
Background technology
Along with Modern Construction Technology and the raising of design level, river is opened by the mankind on a large scale
Send out utilize, built a collection of large reservoir and Inter-Basin Water Transfer Project, these hydraulic engineerings for
The mankind bring adverse effect while playing enormous benefits the most therewith.Wherein, cause because of reservoir
Sediment Siltation problem be one of main adverse effect, Sediment Siltation destroy in natural flows seek
Support the transporting of material, change downstream river course coastal line state, destroy shipping condition and contracting
The short reservoir life-span etc..
At present the processing mode to upper pond shoal materials be on the one hand make its recycling,
On the other hand engineering measure is taked to make silt be delivered to downstream river course as far as possible so that it is closer to certainly
So state.Silt is delivered to downstream pathway machinery conveying, and its deficiency is that cost of investment is high, receives
Imitating low, engineering measure is the most then to build desilting tunnel, bottom hole for sand flushing etc., and its shortcoming is sand discharge
It is limited in scope, is only capable of taking away silt in the range of sand surfing funnel, meanwhile, the lower discharge of needs
Also big, have lost productive head accordingly, indirectly decrease generated energy, affect economic benefit.
In traditional flush gallery there is also gallery, flow velocity is uneven, is easily silted up asking of blocking by silt
Topic.Therefore, the sand discharge building seeking the investment of a kind of efficient sand discharge low cost is to comply with actual work
The act of the certainty of Cheng Yunhang present situation.
Summary of the invention
For deficiencies of the prior art, the present invention provides one to be applicable to high depth of water water
The variable cross-section flush gallery system in storehouse, and can at Low investment, quote under less letdown flow,
Make relatively large region silt be transported to downstream river course by this gallery, thus reduce reservoir and become silted up
Long-pending, it is ensured that power-house runs safety, extension device service life, reduce power station and cross machine mud
Sand, as far as possible recovery downstream near-nature forest state.
The technical solution used in the present invention 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, multiple sand discharges in remittance sand discharge Main Corridor road prop up gallery, and 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, is positioned at sand discharge and props up the sand discharge on gallery top
Body is arranged in netted, and the spacing of all adjacent sand discharge bodies is equal, and described sand discharge body is interior
The cylinder of portion's hollow, described sand discharge body surrounding sidewall is provided with vertical narrow slit shape sand discharge hole, row
The cross section of husky gallery 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 along sand discharge
At gallery each sand discharge body, cross section internal diameter is followed successively by
The present invention props up gallery by arranging the multiple sand discharges importing sand discharge Main Corridor road, may be implemented in relatively
Bottom of the reservior on a large scale realize sand discharge rather than be confined to dam before certain point, thus effectively protect
The utilizable capacity in water holding storehouse, sand discharge Main Corridor road passes dam body, can significantly save quantities, maximum
Limit ensure that the structural strength of dam；Sand discharge props up the setting of sand discharge body on gallery can be in sand discharge corridor
When road system entirety flow is certain, it is ensured that the flow velocity near sand discharge hole is much larger than bottom of the reservior silt
Start velocity, thus prevent the Sediment Siltation near sand discharge hole, on the other hand effectively control down
Vent flow, has ensured that the economic benefit of reservoir and Function are unaffected to greatest extent；Sand discharge
The flow velocity that the cumulative design in cross section propping up gallery makes sand discharge prop up in gallery is substantially uniform, is ensureing have
Effect prevents the abrasion to flush gallery and destruction while discharging silt.
Accompanying drawing explanation
Fig. 1 is the vertical view that the present invention is applicable to the variable cross-section flush gallery system of high depth of water reservoir
Structural representation；
Fig. 2 be in Fig. 1 A-A to side view；
Fig. 3 is that sand discharge of the present invention is propped up gallery and is positioned at sand discharge and props up the vertical view of gallery top sand discharge body
Structural representation；
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 the present invention, the technical scheme in the present invention is carried out clear,
It is fully described by.
Refer to Fig. 1 and Fig. 2, the present invention is applicable to the variable cross-section flush gallery of high depth of water reservoir
System includes that multiple sand discharges in sand discharge Main Corridor road 1 and remittance sand discharge Main Corridor road 1 prop up gallery 2, row
Husky Main Corridor road 1, through dam body, can significantly be saved quantities, ensure that the knot of dam to greatest extent
Structure intensity, and make flush gallery system can realize being uniformly controlled in real time of sediment transport discharge；Many
Individual sand discharge prop up the setting of gallery 2 may be implemented in the bottom of the reservior in a big way realize sand discharge rather than
Before being confined to dam, thus effectively keep the utilizable capacity of reservoir.Sand discharge props up gallery 2 and sand discharge master
Gallery 1 can be vertically arranged.
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, the described sand discharge body 3 cylinder in inner hollow, it is provided with at its surrounding sidewall
Vertical narrow slit shape sand discharge hole 4, and the width in described sand discharge hole 4 is 0.2m.This design one side
Face is when flush gallery system entirety flow is certain, it is ensured that the flow velocity near sand discharge hole is much larger than
The start velocity of bottom of the reservior silt, thus prevent the Sediment Siltation near sand discharge hole；On the other hand have
Effect controls letdown flow, has ensured that the economic benefit of reservoir and Function are not subject to greatest extent
Impact.
It is positioned at sand discharge to prop up the sand discharge body 3 on gallery 2 top and arrange in netted, the most all adjacent rows
The spacing of husky body 3 is equal.This design has played the region of flush gallery system to greatest extent
Sand control ability.The angle of repose utilizing bottom of the reservior silt to be formed after suction realizes the equal of sand dune, bottom of the reservior
Even distribution, 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: a sand discharge
Propping up cross section internal diameter at the sand discharge body 3 of gallery 2 end is D, to cross section, direction, sand discharge Main Corridor road 1
It is gradually increased, props up cross section internal diameter at gallery 2 each sand discharge body 3 along sand discharge and be followed successively by The flow velocity that this design makes sand discharge prop up in gallery is substantially uniform, both
Silt sediment in flush gallery will not be caused owing to flow velocity is too low, again will not be due to flow velocity
Too high cause cavitation, abrasion and structural destruction, affect flush gallery system lifetim.
The present invention props up gallery 2 by arranging the multiple sand discharges importing sand discharge Main Corridor road 1, can realize
Bottom of the reservior in a big way realize sand discharge rather than be confined to dam before certain point, thus have
Effect keeps the utilizable capacity of reservoir, sand discharge Main Corridor road 1 through dam body, can significantly save quantities,
Ensure that the structural strength of dam to greatest extent；Sand discharge props up on gallery the setting of sand discharge body 3 can be
When flush gallery system entirety flow is certain, it is ensured that the flow velocity near sand discharge hole is much larger than bottom of the reservior
The start velocity of silt, thus prevent the Sediment Siltation near sand discharge hole, the most effectively control
Make letdown flow, ensured that the economic benefit of reservoir and Function be not by shadow to greatest extent
Ring；It is the most equal that sand discharge props up the flow velocity that the cumulative design in cross section of gallery 2 makes sand discharge prop up in gallery 2
Even, while ensureing effectively to discharge silt, prevent the abrasion to flush gallery and destruction.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also
Being not limited to this, any those skilled in the art of belonging to are at the technology model that the invention discloses
In enclosing, the change that can readily occur in or replacement, all should contain within protection scope of the present invention.
Therefore, protection scope of the present invention should be as the criterion with scope of the claims.
Claims (4)
1. it is applicable to a variable cross-section flush gallery system for high depth of water reservoir, including sand discharge master
Gallery (1), it is characterised in that: also include that the multiple sand discharges importing sand discharge Main Corridor road (1) are propped up
Gallery (2), sand discharge Main Corridor road (1) passes dam body, and each sand discharge props up the top of gallery (2)
It is interval with multiple sand discharge body (3), is positioned at sand discharge and props up the sand discharge body (3) on gallery (2) top
Arrange in netted, and the spacing of all adjacent sand discharge bodies (3) is equal, described sand discharge body
(3) cylinder in inner hollow, described sand discharge body (3) surrounding sidewall is provided with vertical narrow
Gap-like sand discharge hole (4), 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
System, it is characterised in that: sand discharge is propped up gallery (2) and 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
System, it is characterised in that: the width of described sand discharge 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
System, it is characterised in that: sand discharge is propped up sand discharge body (1) cross section, the place internal diameter of gallery (2) end and is
D, props up gallery (2) each sand discharge body (3) cross section, place internal diameter along sand discharge and is followed successively by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550275.1A CN106013005A (en) | 2016-07-13 | 2016-07-13 | Variable cross section desilting gallery system suitable for high-water-depth reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550275.1A CN106013005A (en) | 2016-07-13 | 2016-07-13 | Variable cross section desilting gallery system suitable for high-water-depth reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106013005A true CN106013005A (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610550275.1A Pending CN106013005A (en) | 2016-07-13 | 2016-07-13 | Variable cross section desilting gallery system suitable for high-water-depth reservoir |
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| CN (1) | CN106013005A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368185A (en) * | 2016-10-21 | 2017-02-01 | 长江水利委员会长江科学院 | Hydropower station water inlet gallery desilting system and method |
| CN110468792A (en) * | 2019-08-21 | 2019-11-19 | 河北省水利水电勘测设计研究院 | A kind of not silting ecological permeable dam and its method of construction |
| CN113529642A (en) * | 2021-07-28 | 2021-10-22 | 河海大学 | Multifunctional telescopic sand discharge hole |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120909A (en) * | 1982-01-11 | 1983-07-19 | ミハイル セルゲ−ヴイツチ ハルチエンコ | Excessive water channel of dam |
| CN101418555A (en) * | 2008-10-27 | 2009-04-29 | 张金良 | Hydraulic arrangement mode sediment ejection structure |
| CN103882838A (en) * | 2014-02-27 | 2014-06-25 | 黄河水利委员会黄河水利科学研究院 | Sediment releasing method for water intake of low-head river channel pivotal power station |
| CN203904946U (en) * | 2014-04-24 | 2014-10-29 | 天津虹炎科技有限公司 | Sediment transport device |
| CN105155489A (en) * | 2015-06-18 | 2015-12-16 | 中国电建集团成都勘测设计研究院有限公司 | Retractable vertical-seam inlet flush gallery |
| CN205296100U (en) * | 2015-11-13 | 2016-06-08 | 单郑洲 | Husky equipment is arranged in reservoir segmentation |
| CN205742106U (en) * | 2016-07-13 | 2016-11-30 | 长江水利委员会长江科学院 | A kind of variable cross-section flush gallery system being applicable to high depth of water reservoir |
-
2016
- 2016-07-13 CN CN201610550275.1A patent/CN106013005A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120909A (en) * | 1982-01-11 | 1983-07-19 | ミハイル セルゲ−ヴイツチ ハルチエンコ | Excessive water channel of dam |
| CN101418555A (en) * | 2008-10-27 | 2009-04-29 | 张金良 | Hydraulic arrangement mode sediment ejection structure |
| CN103882838A (en) * | 2014-02-27 | 2014-06-25 | 黄河水利委员会黄河水利科学研究院 | Sediment releasing method for water intake of low-head river channel pivotal power station |
| CN203904946U (en) * | 2014-04-24 | 2014-10-29 | 天津虹炎科技有限公司 | Sediment transport device |
| CN105155489A (en) * | 2015-06-18 | 2015-12-16 | 中国电建集团成都勘测设计研究院有限公司 | Retractable vertical-seam inlet flush gallery |
| CN205296100U (en) * | 2015-11-13 | 2016-06-08 | 单郑洲 | Husky equipment is arranged in reservoir segmentation |
| CN205742106U (en) * | 2016-07-13 | 2016-11-30 | 长江水利委员会长江科学院 | A kind of variable cross-section flush gallery system being applicable to high depth of water reservoir |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368185A (en) * | 2016-10-21 | 2017-02-01 | 长江水利委员会长江科学院 | Hydropower station water inlet gallery desilting system and method |
| CN110468792A (en) * | 2019-08-21 | 2019-11-19 | 河北省水利水电勘测设计研究院 | A kind of not silting ecological permeable dam and its method of construction |
| CN110468792B (en) * | 2019-08-21 | 2024-02-09 | 河北省水利水电勘测设计研究院集团有限公司 | Non-clogging ecological permeable dam and construction method thereof |
| CN113529642A (en) * | 2021-07-28 | 2021-10-22 | 河海大学 | Multifunctional telescopic sand discharge hole |
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Application publication date: 20161012 |