CN109322289A - The desilting works of intake of hydropower station - Google Patents
The desilting works of intake of hydropower station Download PDFInfo
- Publication number
- CN109322289A CN109322289A CN201811407076.0A CN201811407076A CN109322289A CN 109322289 A CN109322289 A CN 109322289A CN 201811407076 A CN201811407076 A CN 201811407076A CN 109322289 A CN109322289 A CN 109322289A
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- Prior art keywords
- desilting
- tunnel
- import
- intake
- works
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- 239000004576 sand Substances 0.000 claims abstract description 46
- 230000008676 import Effects 0.000 claims abstract description 45
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
-
- 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 present invention discloses a kind of desilting works of intake of hydropower station, including desilting tunnel, the sand discharge hole that is set to the barrage concrete dam in power station import downstream and is set in the dam body of the barrage concrete dam, the import of the desilting tunnel is set to before the import of power station, and the sand discharge funnel that the entrance of the desilting tunnel is formed, close to the power station import, the desilting tunnel is connected with the sand discharge hole.The desilting works of intake of hydropower station of the present invention shorten the length of desilting tunnel, and reduce the overall cost of desilting works.
Description
Technical field
The present invention relates to technical fields of hydropower engineering, more particularly to a kind of desilting works of intake of hydropower station.
Background technique
The power station built on heavily silt-carrying river, the siltation of reservoir be it is inevitable, with the development of reservoir sedimentation, it will subtract
The effective storage of few reservoir, and cause the abrasion of the hydraulic turbine.In order to alleviate the siltation of reservoir, had accumulated in engineering practice abundant
Experience, being provided with desilting works is a kind of effective method.Desilting works are other than the siltation for solving the problems, such as reservoir, together
When must also be ensured that power station import is not deposited.Therefore, position opposite with the plane of power station import need to be considered when desilting works are arranged
It sets and relative relief, guarantee power station import is arranged within the scope of the sand discharge funnel of desilting works, it is ensured that power station import is " in front of the door
Clearly ".
Desilting works often have following two: (1) sand discharge hole are arranged in dam body, set dam body sand discharge hole input elevation to
Lower than power station import, when sand discharge hole sand discharge, a sand discharge funnel is formed in sand discharge hole import upstream, when the base slope of sand discharge funnel
Elevation is lower than power station input elevation, i.e. the silt elevation of power station entrance location is lower than power station input elevation, and power station import just will not
Siltation, sand discharge hole just play the role of protecting power station import, and the advantages of this scheme is that sand discharge hole hole body is shorter, characteristics of compact layout,
The shortcomings that construction investment is relatively fewer, this scheme is, when the practical sand discharge funnel base slope of reservoir operation is suddenly in calculating sand discharge funnel
When base slope, there is the risk of siltation in power station import；
(2) desilting tunnel is set on bank, the desilting tunnel on bank is set, import is arranged in the preceding upstream in dam, and barrel bypasses dam
Shoulder is arranged in massif, and outlet is arranged under dam near river, and the advantages of this scheme is desilting tunnel import close to power station import cloth
It sets, the shortcomings that when desilting tunnel sand discharge can protect power station import to greatest extent, this scheme is that whole hole line is longer, construction investment phase
To larger.
Summary of the invention
The object of the present invention is to provide a kind of desilting works of intake of hydropower station, above-mentioned of the existing technology to solve
Problem, shortens the length of desilting tunnel, and reduces the overall cost of desilting works.
To achieve the above object, the present invention provides following schemes: the present invention provides a kind of sand discharge of intake of hydropower station
Facility including desilting tunnel, is set to the barrage concrete dam in power station import downstream and is set to the barrage concrete dam
Sand discharge hole in dam body, the import of the desilting tunnel are set to before the import of power station, and the entrance of the desilting tunnel is formed
Sand discharge funnel close to the power station import, the desilting tunnel is connected with the sand discharge hole.
Preferably, the desilting tunnel includes vertical shaft section desilting tunnel, lower horizontal section desilting tunnel and the horizontal segment sand discharge being sequentially communicated
Hole.
Preferably, the import of the vertical shaft section desilting tunnel is the import of the desilting tunnel.
Preferably, the horizontal segment desilting tunnel is connected to the sand discharge hole.
Preferably, the lower horizontal section desilting tunnel is arc-shaped.
Preferably, the emergency gate and work lock for controlling the sand discharge hole are provided in the barrage concrete dam
Door.
Preferably, the hydraulic headstock gear for controlling the main gate is additionally provided in the barrage concrete dam.
Preferably, the emergency gate main gate is closer to the desilting tunnel.
The desilting works of intake of hydropower station of the present invention achieve following technical effect compared with the existing technology:
The desilting works of intake of hydropower station of the present invention shorten the length of desilting tunnel, and reduce the entirety of desilting works
Cost.The import of desilting tunnel is arranged before the access doors of power station in the desilting works of intake of hydropower station of the present invention, formation
Before the access doors of sand discharge funnel power station, the practical sand discharge funnel base slope of reservoir is evaded and has calculated the wind of sand discharge funnel base slope difference
Danger, it is ensured that power station import " clear in front of the door "；The characteristics of desilting works of intake of hydropower station of the present invention make full use of concrete dam,
Arrange that desilting tunnel, dam body arrange sand discharge hole before dam, desilting tunnel is engaged togather with sand discharge hole, reduces construction investment.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the desilting works of intake of hydropower station of the present invention；
Wherein, the power station 1- import pylon, the import of the power station 2-, 3- vertical shaft section desilting tunnel, 4- lower horizontal section desilting tunnel, 5- water
Flat section desilting tunnel, 6- ground line, 7- emergency gate, 8- hydraulic headstock gear, 9- main gate, 10- sand discharge hole, 11- barrage coagulation
Earth dam.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of desilting works of intake of hydropower station, to solve of the existing technology ask
Topic, shortens the length of desilting tunnel, and reduce the overall cost of desilting works.
The present invention provides a kind of desilting works of intake of hydropower station, including desilting tunnel, is set to power station import downstream
Barrage concrete dam and the sand discharge hole that is set in the dam body of the barrage concrete dam, the import of the desilting tunnel be set to
Before the import of power station, and the sand discharge funnel that the entrance of the desilting tunnel is formed is close to the power station import, the sand discharge
Hole is connected with the sand discharge hole.
The desilting works of intake of hydropower station of the present invention shorten the length of desilting tunnel, and reduce the entirety of desilting works
Cost.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, the desilting works of the present embodiment intake of hydropower station include desilting tunnel, are set to power station import 2
The barrage concrete dam 11 in downstream and the sand discharge hole 10 being set in the dam body of barrage concrete dam 11, referring to Fig.1 in ground
Line 6, barrage concrete dam 11 are built on heavily silt-carrying river, and power station import is arranged on the bank of the upstream of barrage concrete dam 11
Pylon 1 and power tunnel, the import of desilting tunnel are set to 2 front of power station import, and the sand discharge leakage that the entrance of desilting tunnel is formed
Close to power station import 2, desilting tunnel is connected bucket with sand discharge hole 10.
In the present embodiment, desilting tunnel includes vertical shaft section desilting tunnel 3, lower horizontal section desilting tunnel 4 and the horizontal segment being sequentially communicated
Desilting tunnel 5；The import of vertical shaft section desilting tunnel 3 is the import of desilting tunnel, and horizontal segment desilting tunnel 5 is connected to sand discharge hole 10, under it is curved
Section desilting tunnel 4 is arc-shaped.The emergency gate 7 and main gate for controlling sand discharge hole 10 are provided in barrage concrete dam 11
9, the hydraulic headstock gear 8 for controlling main gate 9 is additionally provided in barrage concrete dam 11.
Emergency gate 7 is set to the front of main gate 9, and emergency gate 7 is compared with main gate 9 closer to desilting tunnel, emergency lock
Door 7 is the top for hanging on sand discharge hole 10 when flat, i.e., emergency gate 7 is in normally open, only in barrage concrete dam 11
In can just be closed emergency gate 7 when there is accident.
The specific work process of the desilting works of the present embodiment intake of hydropower station is as follows:
When the silt elevation of reservoir area is higher than the elevation of power station import 2, need to carry out a sand discharge, as long as passing through at this time
Hydraulic headstock gear 8 opens main gate 9, and main gate 9 is opened after a certain period of time, and sand discharge will be completed, then pass through hydraulic switch
Machine 8 closes main gate 9.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "vertical", "horizontal"
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as
Limitation of the present invention.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (8)
1. the desilting works of intake of hydropower station, it is characterised in that: including desilting tunnel, be set to the barrage in power station import downstream
Concrete dam and the sand discharge hole being set in the dam body of the barrage concrete dam, the import of the desilting tunnel are set to power station
Before import, and the sand discharge funnel that the entrance of the desilting tunnel is formed is close to the power station import, the desilting tunnel and institute
Sand discharge hole is stated to be connected.
2. the desilting works of intake of hydropower station according to claim 1, it is characterised in that: the desilting tunnel includes successively
Vertical shaft section desilting tunnel, lower horizontal section desilting tunnel and the horizontal segment desilting tunnel of connection.
3. the desilting works of intake of hydropower station according to claim 2, it is characterised in that: the vertical shaft section desilting tunnel
Import is the import of the desilting tunnel.
4. the desilting works of intake of hydropower station according to claim 2, it is characterised in that: the horizontal segment desilting tunnel with
The sand discharge hole connection.
5. the desilting works of intake of hydropower station according to claim 2, it is characterised in that: the lower horizontal section desilting tunnel is in
It is arc-shaped.
6. the desilting works of intake of hydropower station according to claim 1, it is characterised in that: in the barrage concrete dam
It is provided with the emergency gate and main gate for controlling the sand discharge hole.
7. the desilting works of intake of hydropower station according to claim 6, it is characterised in that: in the barrage concrete dam
It is additionally provided with the hydraulic headstock gear for controlling the main gate.
8. the desilting works of intake of hydropower station according to claim 6 or 7, it is characterised in that: the emergency gate compared with
The main gate is closer to the desilting tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811407076.0A CN109322289A (en) | 2018-11-23 | 2018-11-23 | The desilting works of intake of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811407076.0A CN109322289A (en) | 2018-11-23 | 2018-11-23 | The desilting works of intake of hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109322289A true CN109322289A (en) | 2019-02-12 |
Family
ID=65257934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811407076.0A Pending CN109322289A (en) | 2018-11-23 | 2018-11-23 | The desilting works of intake of hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109322289A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (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 |
| WO2017184005A1 (en) * | 2016-04-21 | 2017-10-26 | Tesla Tomislav | Vacuuming sediment from river reservoirs |
| CN206736872U (en) * | 2017-05-23 | 2017-12-12 | 中国电建集团成都勘测设计研究院有限公司 | Large hydropower station water inlet scour gallery |
| CN209243685U (en) * | 2018-11-23 | 2019-08-13 | 黄河勘测规划设计研究院有限公司 | The desilting works of intake of hydropower station |
-
2018
- 2018-11-23 CN CN201811407076.0A patent/CN109322289A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017184005A1 (en) * | 2016-04-21 | 2017-10-26 | Tesla Tomislav | Vacuuming sediment from river reservoirs |
| 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 |
| CN206736872U (en) * | 2017-05-23 | 2017-12-12 | 中国电建集团成都勘测设计研究院有限公司 | Large hydropower station water inlet scour gallery |
| CN209243685U (en) * | 2018-11-23 | 2019-08-13 | 黄河勘测规划设计研究院有限公司 | The desilting works of intake of hydropower station |
Non-Patent Citations (1)
| Title |
|---|
| 杨志明;: "筱溪水电站排沙廊道设计", 湖南水利水电, no. 04, pages 1 - 2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Address after: 450008 Jinshui Road 109, Zhengzhou City, Henan Province Applicant after: Yellow River Survey Planning and Design Research Institute Co., Ltd. Address before: 450000 Jinshui Road 109, Zhengzhou City, Henan Province Applicant before: Yellow River Engineering Consulting Co., Ltd. |