CN109208693B - Water taking and draining device for high-dam reservoir engineering - Google Patents
Water taking and draining device for high-dam reservoir engineering Download PDFInfo
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- CN109208693B CN109208693B CN201811303275.7A CN201811303275A CN109208693B CN 109208693 B CN109208693 B CN 109208693B CN 201811303275 A CN201811303275 A CN 201811303275A CN 109208693 B CN109208693 B CN 109208693B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/04—Methods or installations for obtaining or collecting drinking water or tap water from surface water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
-
- 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
- E02B8/04—Valves, slides, or the like; Arrangements therefor; Submerged sluice 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)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Barrages (AREA)
Abstract
The invention discloses a water taking and draining device for a high-dam reservoir project. Including a common conduit; a common pipeline water inlet is sequentially provided with a trash rack and an accident gate along the water flow direction; the water outlet of the common pipeline is provided with a main operation chamber, a main valve is arranged in the main operation chamber, one end of the main valve is connected with the water outlet of the common pipeline, and the other end of the main valve is connected with one end of the common elbow; the other end of the common bent pipe is provided with a water taking and draining operation chamber, and a T-shaped tee joint is arranged in the water taking and draining operation chamber; one end of a straight pipe of the T-shaped tee joint is connected with the outlet of the common bent pipe, the other end of the straight pipe of the T-shaped tee joint is connected with one end of a water taking valve, and the other end of the water taking valve is connected with a water taking pipe; the branch pipe of the T-shaped tee joint is connected with the water draining bent pipe through a water draining valve. The invention can reduce the excavation earthwork and the concrete pouring difficulty during construction, reduce the investment cost, reasonably control the discharge flow and reduce the energy consumption by additionally arranging the small-caliber valve, and is beneficial to energy conservation and emission reduction.
Description
Technical Field
The invention relates to a water taking and draining device for a high-dam reservoir project, and belongs to the technical field of metal structures of water conservancy and hydropower projects.
Background
For reservoirs, the functions of water taking and water discharging are generally required, two independent pipelines are usually arranged for water taking and water discharging respectively, a water intake pipe is used for supplying water to towns, factories, industrial parks and the like, and a water discharging pipe is used for reservoir emptying maintenance and discharging ecological flow to the downstream. The arrangement mode of the water intake pipe and the water drain pipe is reasonable for reservoir engineering with far water intake and water drain azimuth differences, and the reason is that the water intake pipe and the water drain pipe are far away from each other and are not affected by excavation and concrete pouring. However, for reservoir engineering with water intake and water discharge arranged in similar positions, two independent pipelines are arranged in the same similar position, so that the water intake pipe and the water discharge pipe are closer in distance, excavation and concrete pouring can be affected mutually, the difficulty of excavation and concrete pouring can be increased, investment is increased, and more investment is increased especially for engineering with longer pipelines. Secondly, the use probability of the water drain pipe for reservoir emptying is less, and the use probability for discharging ecological flow to the downstream is more, so the water drain pipe is adopted for direct discharging, and the water drain working valve is higher in discharging flow, and the motor is high in power and more in energy consumption, so that energy conservation and emission reduction are not facilitated. In addition, the existing accident gate is arranged at the water intake, in the high dam reservoir engineering, if the heights of the water intake pipe and the water drain pipe inlet are too low, the accident gate is designed and the running water head is too high, and the risk of gate water-driving gate closing is large, so that the existing technology is still imperfect and needs to be further improved.
Disclosure of Invention
The invention aims to provide a water taking and draining device for a high-dam reservoir project, which is used for reducing the excavation soil volume and the concrete pouring difficulty, reducing the investment cost, reducing the energy consumption by reasonably controlling the drainage flow through additionally arranging a small-caliber valve, and being beneficial to energy conservation and emission reduction, thereby overcoming the defects in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a water taking and draining device for a high-dam reservoir project, which comprises a shared pipeline; a common pipeline water inlet is sequentially provided with a trash rack and an accident gate along the water flow direction; the water outlet of the common pipeline is provided with a main operation chamber, a main valve is arranged in the main operation chamber, one end of the main valve is connected with the water outlet of the common pipeline, and the other end of the main valve is connected with one end of the common elbow; the other end of the common bent pipe is provided with a water taking and draining operation chamber, and a T-shaped tee joint is arranged in the water taking and draining operation chamber; one end of a straight pipe of the T-shaped tee joint is connected with the outlet of the common bent pipe, the other end of the straight pipe of the T-shaped tee joint is connected with one end of a water taking valve, and the other end of the water taking valve is connected with a water taking pipe; the branch pipe of the T-shaped tee joint is connected with the water draining bent pipe through a water draining valve.
In the device, a branch pipe of the T-shaped tee joint is welded with a water draining branch pipe, and a water outlet of the water draining branch pipe is provided with a hollow injection valve.
In the device, a bypass pipe is arranged between the branch pipe of the T-shaped tee joint and the drain elbow, and the bypass pipe is provided with an overhaul gate valve and a bypass drain working valve.
In the device, the caliber of the bypass pipe is smaller than the caliber of the branch pipe and the caliber of the drain elbow of the T-shaped tee joint.
In the device, the hollow injection valve, one end of the common elbow, one end of the drain elbow and one end of the water intake pipe are all fixed on the side wall of the drain operation chamber.
In the device, a lower elbow is arranged at the water outlet of the water draining elbow.
In the device, the common pipeline is pre-buried in the dam body.
In the device, the common elbow and the water intake pipe are supported on the fixed pier.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the common pipeline is arranged in reservoir engineering, and the main valve is arranged at the outlet end of the common pipeline, so that water flow can be closed under the ultra-high water head, accidents of the common pipeline are effectively prevented from being enlarged, the main valve adopts the accident valve with high pressure-bearing water head and high running water head, and the running reliability is high, so that the safety of the engineering is greatly improved when the main valve is used in high-dam reservoir engineering. And meanwhile, the common pipeline inlet is provided with the overhaul gate, so that conditions are provided for overhaul of the common pipeline. The rear end of the common pipeline is connected with an inclined downward common bent pipe, the rear end of the common bent pipe is provided with a T-shaped tee, a straight pipe of the T-shaped tee is connected with a water taking valve and a water supply pipe, and a branch pipe of the T-shaped tee is connected with a water draining valve and a water draining pipe. Compared with the traditional direct discharge mode behind a dam of a high-dam reservoir, the invention has the advantages that the damping is increased and the discharge height of water flow is reduced by leading the water discharge pipe to the discharge mode of the stilling pool, so that the energy dissipation of the water flow is facilitated; in addition, a small-caliber water draining branch pipe and a water draining valve or a water draining working valve are arranged on the water draining pipe, and a bypass pipe and a water draining valve are arranged at two ends of the water draining pipe along the water flow direction and used for draining ecological flow, so that energy consumption of the water draining working valve can be reduced. When the water-draining working valve is operated, the trash rack is lifted out of the orifice, so that the trash rack plate is prevented from vibrating and being strongly damaged due to too fast flow rate when the water-draining working valve is used for draining water, and when the water intake pipe is used for taking water, the trash rack is in a closed trash blocking state, so that larger dirt can be prevented from entering the water intake pipe, and the water intake quality is effectively ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1 (scheme 1);
FIG. 3 is a B-B cross-sectional view of FIG. 2;
FIG. 4 is a cross-sectional view A-A of FIG. 1 (scheme 2);
fig. 5 is a C-C cross-sectional view of fig. 4.
Marked in the figure as: 1-shared pipelines, 2-trash racks, 3-overhaul gates, 4-main valves, 5-shared bent pipes, 6-T-shaped tee joints, 7-straight pipes, 8-water taking valves, 9-branch pipes, 10-water draining valves, 11-water draining bent pipes, 12-lower elbows, 13-stilling pools, 14-water taking pipes, 15-water draining branch pipes, 16-hollow injection valves, 17-total operation chambers, 18-water taking and draining operation chambers, 19-side walls, 20-bypass pipes, 21-small-caliber gate valves, 22-bypass water draining working valves and 23-fixed piers.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
The invention relates to a water taking and draining device for a high-dam reservoir project, which is shown in figures 1 to 5 and comprises a shared pipeline 1; a common pipeline 1 is provided with a trash rack 2 and an accident gate 3 in sequence along the water flow direction; the water outlet of the common pipeline 1 is provided with a total operation chamber 17, a total valve 4 is arranged in the total operation chamber 17, one end of the total valve 4 is connected with the water outlet of the common pipeline 1, and the other end of the total valve 4 is connected with one end of the common elbow 5; the other end of the common bent pipe 5 is provided with a water taking and draining operation chamber 18, and a T-shaped tee joint 6 is arranged in the water taking and draining operation chamber 18; one end of a straight pipe 7 of the T-shaped tee 6 is connected with the outlet of the common bent pipe 5, the other end of the straight pipe 7 of the T-shaped tee 6 is connected with one end of a water taking valve 8, and the other end of the water taking valve 8 is connected with a water taking pipe 14; the branch pipe 9 of the T-shaped tee 6 is connected with a drain elbow 11 through a drain valve 10. The branch pipe 9 of the T-shaped tee joint 6 is welded with a water draining branch pipe 15, and a water outlet of the water draining branch pipe 15 is provided with a hollow injection valve 16. A bypass pipe 20 is arranged between the branch pipe 9 of the T-shaped tee 6 and the drain bent pipe 11, and a maintenance gate valve 21 and a bypass drain working valve 22 are arranged on the bypass pipe 20. The caliber of the bypass pipe 20 is smaller than the caliber of the branch pipe 9 and the drain elbow 11 of the T-shaped tee 6. The hollow injection valve 16, one end of the common elbow 5, one end of the drain elbow 11 and one end of the water intake pipe 14 are all fixed on the side wall 19 of the drain operation chamber 18. The water outlet of the water discharge elbow pipe 11 is provided with a lower elbow 12. The common pipeline 1 is pre-buried in the dam body. The common elbow 5 and the water intake pipe 14 are supported on the fixed pier 23.
Example 1
The water-saving type high-dam reservoir is characterized in that a shared pipeline is arranged at the middle lower part of a high-dam reservoir, a trash rack and a service gate are sequentially arranged at the inlet of the shared pipeline along the water flow direction, a main valve is arranged at the outlet end of the shared pipeline, the rear part of the main valve is connected with a shared bent pipe which is obliquely downward, a T-shaped tee joint is arranged at the rear end of the shared bent pipe which is obliquely downward, the rear end of a straight pipe of the T-shaped tee joint is connected with a water taking valve, the rear end of a branch pipe of the T-shaped tee joint is connected with a water drain valve, a water drain bent pipe is arranged at the rear end of the water drain valve, and a stilling pool is arranged below a lower elbow of the water drain bent pipe. The rear end of the water taking valve is connected with a water taking pipe, a branch pipe of the T-shaped tee joint is provided with a water discharging branch pipe or a bypass pipe, the water discharging branch pipe is provided with a small-caliber water discharging working valve, an outlet of the small-caliber water discharging working valve is a stilling pool, the bypass pipe is provided with a small-caliber overhaul gate valve and a water discharging working valve in sequence along the outflow direction, and the rear end of the small-caliber water discharging valve is communicated with the water discharging elbow pipe.
In the concrete implementation, a common pipeline 1 is embedded in the construction of a dam body of a high-dam reservoir. A trash rack 2 and a service gate 3 are sequentially arranged at a water inlet of a common pipeline 1 along the water flow direction, a main valve 4 is arranged at an outlet end of the common pipeline 1, and the main valve 4 is arranged in a main operation chamber 17. The rear part of the main valve 4 is provided with a common bent pipe 5 which is obliquely downwards arranged in a fold line, the rear end of the obliquely downwards common bent pipe 5 is provided with a T-shaped tee 6, the rear end of a straight pipe 7 of the T-shaped tee 6 is connected with a water intake valve 8, and the rear end of the water intake valve 8 is connected with a water intake pipe 14. The rear end of a branch pipe 9 of the T-shaped tee joint 6 is connected with a water drain valve 10, a water drain bent pipe 11 is arranged at the rear end of the water drain valve 10, a lower elbow 12 is arranged at a water outlet of the water drain bent pipe 11, and a stilling pool 13 is arranged below the lower elbow 12. The branch pipe 9 of the T-shaped tee joint 6 is provided with a water discharging branch pipe 15, the water discharging branch pipe 15 is provided with a hollow injection valve 16, and the outlet of the hollow injection valve 16 is a stilling pool 13. The T-shaped tee 6, the water taking valve 8, the water draining valve 10 and the hollow injection valve 16 are arranged in the water taking and draining operation chamber 18, and the hollow injection valve 16 and the water draining elbow 11 are fixed in the side wall 19. The drain valve 10 is operated to lift the trash rack 2 out of the hole, and the trash rack 2 is in a closed trash blocking state when the water intake pipe 14 supplies water.
Example 2
The difference between the embodiment 2 and the embodiment 1 is that the branch pipe 9 of the T-shaped tee 6 is not provided with a water discharge branch pipe 15, and a hollow injection valve 16 at the front end of the water discharge branch pipe 15 is not provided naturally. In embodiment 2, a bypass pipe 20 is provided between the branch pipe 9 of the T-joint 6 and the drain elbow 11, and a small-diameter gate valve 21 and a small-diameter drain valve 22 are provided on the bypass pipe 20.
The main valve of the invention adopts the accident valve with pressure-bearing water head and operation water head, and has high operation reliability, thus greatly improving the safety of engineering when being used in the high-dam reservoir engineering. And meanwhile, the common pipeline inlet is provided with the overhaul gate, so that conditions are provided for overhaul of the common pipeline. The rear end of the common pipeline is connected with an inclined downward common bent pipe, the rear end of the common bent pipe is provided with a T-shaped tee, a straight pipe of the T-shaped tee is connected with a water taking valve and a water supply pipe, and a branch pipe of the T-shaped tee is connected with a water draining valve and a water draining pipe. Compared with the traditional direct discharge mode behind a dam of a high-dam reservoir, the invention has the advantages that the damping is increased and the discharge height of water flow is reduced by leading the water discharge pipe to the discharge mode of the stilling pool, so that the energy dissipation of the water flow is facilitated; in addition, a small-caliber water draining branch pipe and a water draining valve or a water draining working valve are arranged on the water draining pipe, and a bypass pipe and a water draining valve are arranged at two ends of the water draining pipe along the water flow direction and used for draining ecological flow, so that energy consumption of the water draining working valve can be reduced. When the water-draining working valve is operated, the trash rack is lifted out of the orifice, so that the trash rack plate is prevented from vibrating and being strongly damaged due to too fast flow rate when the water-draining working valve is used for draining water, and when the water intake pipe is used for taking water, the trash rack is in a closed trash blocking state, so that larger dirt can be prevented from entering the water intake pipe, and the water intake quality is effectively ensured.
Claims (6)
1. The water intake and drainage device for the high-dam reservoir engineering comprises a shared pipeline (1); the method is characterized in that: a water inlet of the common pipeline (1) is sequentially provided with a trash rack (2) and an accident gate (3) along the water flow direction; the water outlet of the common pipeline (1) is provided with a total operation chamber (17), a total valve (4) is arranged in the total operation chamber (17), one end of the total valve (4) is connected with the water outlet of the common pipeline (1), and the other end of the total valve (4) is connected with one end of the common elbow pipe (5); the other end of the common elbow pipe (5) is provided with a water taking and draining operation chamber (18), and a T-shaped tee joint (6) is arranged in the water taking and draining operation chamber (18); one end of a straight pipe (7) of the T-shaped tee joint (6) is connected with the outlet of the common bent pipe (5), the other end of the straight pipe (7) of the T-shaped tee joint (6) is connected with one end of a water taking valve (8), and the other end of the water taking valve (8) is connected with a water taking pipe (14); the branch pipe (9) of the T-shaped tee joint (6) is connected with a drain elbow pipe (11) through a drain valve (10); a branch pipe (9) of the T-shaped tee joint (6) is welded with a water draining branch pipe (15), and a water outlet of the water draining branch pipe (15) is provided with a hollow injection valve (16); a bypass pipe (20) is arranged between the branch pipe (9) of the T-shaped tee joint (6) and the drain bent pipe (11), and a service gate valve (21) and a bypass drain working valve (22) are arranged on the bypass pipe (20).
2. The water intake and drainage device for high dam reservoir engineering according to claim 1, wherein: the caliber of the bypass pipe (20) is smaller than the caliber of the branch pipe (9) and the drain elbow pipe (11) of the T-shaped tee joint (6).
3. The water intake and drainage device for high dam reservoir engineering according to claim 1, wherein: one end of the hollow injection valve (16), one end of the common elbow pipe (5), one end of the drain elbow pipe (11) and one end of the water intake pipe (14) are all fixed on a side wall (19) of the drain operation chamber (18).
4. The water intake and drainage device for high dam reservoir engineering according to claim 1, wherein: the water outlet of the water discharge elbow pipe (11) is provided with a lower elbow (12).
5. The water intake and drainage device for high dam reservoir engineering according to claim 1, wherein: the common pipeline (1) is pre-buried in the dam body.
6. The water intake and drainage device for high dam reservoir engineering according to claim 1, wherein: the common elbow pipe (5) and the water intake pipe (14) are supported on the fixed pier (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303275.7A CN109208693B (en) | 2018-11-02 | 2018-11-02 | Water taking and draining device for high-dam reservoir engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303275.7A CN109208693B (en) | 2018-11-02 | 2018-11-02 | Water taking and draining device for high-dam reservoir engineering |
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| Publication Number | Publication Date |
|---|---|
| CN109208693A CN109208693A (en) | 2019-01-15 |
| CN109208693B true CN109208693B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811303275.7A Active CN109208693B (en) | 2018-11-02 | 2018-11-02 | Water taking and draining device for high-dam reservoir engineering |
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| Country | Link |
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| CN (1) | CN109208693B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042881B (en) * | 2019-04-23 | 2024-03-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Reservoir layered water taking system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1278388A1 (en) * | 1984-06-25 | 1986-12-23 | Среднеазиатское Отделение Всесоюзного Ордена Ленина Проектно-Изыскательского И Научно-Исследовательского Института "Гидропроект" Им.С.Я.Жука | Spillway structure |
| KR100523855B1 (en) * | 2005-02-23 | 2005-10-25 | 주식회사 현진기업 | A water collecting equipment and method |
| JP4678893B1 (en) * | 2010-08-26 | 2011-04-27 | 秀樹 中込 | Intake mechanism of Sabo Dam |
| CN203256708U (en) * | 2013-05-14 | 2013-10-30 | 中国水电顾问集团贵阳勘测设计研究院 | Device for supplying water to downstream position of reservoir |
| CN107119749A (en) * | 2017-04-28 | 2017-09-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for ecologically taking water from reservoir |
| CN209538287U (en) * | 2018-11-02 | 2019-10-25 | 中国电建集团贵阳勘测设计研究院有限公司 | Water taking and draining device for high dam reservoir engineering |
-
2018
- 2018-11-02 CN CN201811303275.7A patent/CN109208693B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1278388A1 (en) * | 1984-06-25 | 1986-12-23 | Среднеазиатское Отделение Всесоюзного Ордена Ленина Проектно-Изыскательского И Научно-Исследовательского Института "Гидропроект" Им.С.Я.Жука | Spillway structure |
| KR100523855B1 (en) * | 2005-02-23 | 2005-10-25 | 주식회사 현진기업 | A water collecting equipment and method |
| JP4678893B1 (en) * | 2010-08-26 | 2011-04-27 | 秀樹 中込 | Intake mechanism of Sabo Dam |
| CN203256708U (en) * | 2013-05-14 | 2013-10-30 | 中国水电顾问集团贵阳勘测设计研究院 | Device for supplying water to downstream position of reservoir |
| CN107119749A (en) * | 2017-04-28 | 2017-09-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for ecologically taking water from reservoir |
| CN209538287U (en) * | 2018-11-02 | 2019-10-25 | 中国电建集团贵阳勘测设计研究院有限公司 | Water taking and draining device for high dam reservoir engineering |
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| CN109208693A (en) | 2019-01-15 |
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