CN218116360U - Underground tail water system of hydropower station - Google Patents
Underground tail water system of hydropower station Download PDFInfo
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- CN218116360U CN218116360U CN202222590991.6U CN202222590991U CN218116360U CN 218116360 U CN218116360 U CN 218116360U CN 202222590991 U CN202222590991 U CN 202222590991U CN 218116360 U CN218116360 U CN 218116360U
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- tail water
- diversion tunnel
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- 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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Abstract
The utility model discloses an underground tail water system of power station belongs to hydraulic and hydroelectric engineering technical field, and it is big to solve current ground tail water system size volume, very uneconomic problem. The underground tail water system comprises: a diversion tunnel; the tail water branch pipe is arranged on the side wall of the diversion tunnel, close to the hydropower station, and is communicated with the diversion tunnel; the tail water branch pipe is used for being communicated with a tail water outlet of the hydropower station; the vertical shaft is arranged on the top wall of the diversion tunnel along the vertical direction and is communicated with the diversion tunnel; and the connecting hole is communicated with one end of the vertical shaft, which is far away from the diversion tunnel. The utility model is used for the tail water treatment of power station.
Description
Technical Field
The utility model relates to an underground tail water system of power station belongs to hydraulic and hydroelectric engineering technical field.
Background
A hydropower station of a diversion type ground workshop behind a dam has a power generation function, and a tail water system is generally connected with a river channel. Have simultaneously supply water, generate electricity, the multi-functional demand of drawing water, arranged the power station of conventional unit and two-way unit, the factory building is ground factory building design, and the tail water level needs satisfy the water supply elevation, and the tail water level is higher, and unit suction height size is great, and unit installation elevation is lower. The power station tail water needs to be linked with the water supply control gate, and the water supply control gate is arranged in the mountain, so that the spatial arrangement difficulty is high. If the ground tail water system is connected with the control gate, the excavation and structural engineering magnitude of a tail water building is large, the size of the tail water building is large, and the tail water building is not economical.
SUMMERY OF THE UTILITY MODEL
The utility model provides an underground tail water system of power station can solve current ground tail water system size volume big, very uneconomic problem.
The utility model provides an underground tail water system of power station, underground tail water system includes:
a diversion tunnel;
the tail water branch pipe is arranged on the side wall of the diversion tunnel close to the hydropower station and is communicated with the diversion tunnel; the tail water branch pipe is used for being communicated with a tail water outlet of the hydropower station;
the vertical shaft is arranged on the top wall of the diversion tunnel along the vertical direction and is communicated with the diversion tunnel;
and the connecting hole is communicated with one end of the vertical shaft, which is far away from the diversion tunnel.
Optionally, the underground tail water system further comprises:
the water supply branch pipe is arranged on the side wall of the diversion tunnel, close to the hydropower station, and is communicated with the diversion tunnel; the water supply branch pipe is used for being communicated with a water supply outlet of the hydropower station.
Optionally, the underground tail water system further comprises:
and the tail water pool is connected between the vertical shaft and the connecting hole.
Optionally, the pipeline sectional area of the tail water tank is larger than the pipeline sectional area of the connecting hole.
Optionally, the vertical shaft, the connecting hole and the tail water pool are all located below the ground.
Optionally, the underground tail water system further comprises:
and the water outlet gate is arranged on the outlet of the diversion tunnel and is used for plugging or opening the diversion tunnel.
Optionally, the number of the tail water branch pipes is 4.
Optionally, the number of the water supply branch pipes is 2.
The utility model discloses the beneficial effect that can produce includes:
the utility model provides an underground tail water system of power station reforms transform having the diversion tunnel, newly-built underground buried formula tail water pond, shaft, connection hole, water-out floodgate, as the tail water system architecture of power station, both satisfied the engineering demand, practiced thrift the engineering investment again. The tail water system passes through a hydraulic model test, hydraulic transition calculation verifies hydraulic conditions and operating working conditions, the flow state is good, and hydraulic transition is stable. The tail water system is novel, reasonable and feasible in structure, and is good in running state after being put into operation.
Drawings
Fig. 1 is a schematic plan structure diagram of an underground tail water system provided by an embodiment of the present invention;
fig. 2 is a schematic longitudinal sectional structure view of an underground tail water system provided by an embodiment of the present invention;
fig. 3 is a schematic view of a spatial three-dimensional structure of an underground tail water system provided by an embodiment of the present invention.
List of parts and reference numerals:
1. a diversion tunnel; 2. a tail water branch pipe; 3. a water supply branch pipe; 4. a shaft; 5. a tail water pool; 6. a connecting hole; 7. and (7) a water outlet gate.
Detailed Description
The present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.
The embodiment of the utility model provides a power station's secret tail water system, as shown in fig. 1 to 3, secret tail water system includes:
The tail water branch pipe 2 is arranged on the side wall of the diversion tunnel 1 close to the hydropower station and is communicated with the diversion tunnel 1; and the tail water branch pipe 2 is used for being communicated with a tail water outlet of the hydropower station. The embodiment of the utility model provides a do not restrict to tail water branch pipe 2's quantity that sets up, technical personnel in the field can set for according to actual conditions. In general, the number of tail water branch pipes 2 corresponds to the number of tail water outlets of the hydropower station. As an example, the tail water branch pipes 2 may be provided in 4.
And the vertical shaft 4 is arranged on the top wall of the diversion tunnel 1 along the vertical direction and is communicated with the diversion tunnel 1.
And the connecting hole 6 is communicated with one end of the vertical shaft 4 far away from the diversion tunnel 1. A water supply control gate is connected to the end of the connecting hole 6 remote from the shaft 4.
Further, the underground tail water system further comprises:
the water supply branch pipe 3 is arranged on the side wall of the diversion tunnel 1 close to the hydropower station and is communicated with the diversion tunnel 1; the water supply branch pipe 3 is used for being communicated with a water supply outlet of the hydropower station. The embodiment of the utility model provides a do not restrict to the quantity that sets up of water supply branch pipe 3, and the field technical personnel can set for according to actual conditions. In general, the number of water supply branch pipes 3 corresponds to the number of water supply outlets of the hydropower station. As an example, the water supply branch pipe 3 may be provided in 2.
Preferably, the underground tail water system further comprises: and the tail water pool 5 is connected between the vertical shaft 4 and the connecting hole 6. Preferably, the sectional area of the pipe of the tail water tank 5 is larger than that of the connecting hole 6. This facilitates a better buffering of the water flow in the tailrace pool 5.
In the embodiment of the present invention, the shaft 4, the connecting hole 6 and the tail water pool 5 are all located below the ground. The tail water system formed by the structures is arranged underground, so that the body form of a tail water building can be simplified, and the excavation and structural concrete pouring amount of the building are greatly reduced.
Further, the underground tail water system further comprises: and the water outlet gate 7 is arranged on the outlet of the diversion tunnel 1 and used for plugging or opening the diversion tunnel 1.
The diversion tunnel 1 is an existing diversion tunnel for diversion flood discharge tasks. The embodiment of the utility model improves and utilizes the existing diversion tunnel, in particular, when the diversion tunnel 1 is constructed, the tail water branch pipe 2 and the water supply branch pipe 3 are reserved; and then a tail water pool 5 and a vertical shaft 4 are built to be connected with the diversion tunnel 1. After the lower gate stores water and completes diversion flood discharge task plugging, a water outlet gate 7 is additionally arranged at the outlet of the diversion tunnel 1, and an underground connecting tunnel 6 is built and is respectively connected with a tail water pool 5 and a water supply control gate. The improved diversion tunnel 1 is applied to a tail water system, so that the engineering requirements are met, and the engineering investment is saved.
The utility model discloses can be staged implementation underground buried type's tail-water system structures such as shaft 4, tail-water pond 5, connection hole 6, water-out floodgate 7, fine satisfied the progress requirement of engineering nodes such as engineering construction water conservancy diversion, lower floodgate retaining.
In the embodiment of the utility model, when the diversion flood discharge task is needed, the tail water branch pipe 2 and the water supply branch pipe 3 can be blocked, the diversion tunnel 1 is kept smooth, and the diversion flood discharge task can be performed by the diversion tunnel 1; after the diversion flood discharge task is finished, an inlet of the diversion tunnel 1 can be plugged, a water outlet gate 7 is arranged at an outlet of the diversion tunnel 1, the outlet of the diversion tunnel 1 is plugged by the water outlet gate 7, and at the moment, the tail water branch pipe 2 or the water supply branch pipe 3 can be opened to carry out tail water treatment or water supply treatment; when equipment maintenance is needed, the water-withdrawing gate 7 can be opened, so that the water in the diversion tunnel 1, the vertical shaft 4, the tail water pool 5 and the connecting tunnel 6 can be discharged from the outlet of the diversion tunnel 1.
The utility model provides an underground tail water system of power station can be used to the unit installation height lower, and in the higher structural system of tail water level, through reforming transform existing diversion tunnel 1, newly-built underground buried tail water pond 5, shaft 4, connection hole 6, water-discharging gate 7, as the tail water system structure of power station, both satisfied the engineering demand, practiced thrift the engineering investment again. The tail water system passes through a hydraulic model test, hydraulic transition calculation verifies hydraulic conditions and operating working conditions, the flow state is good, and hydraulic transition is stable. The tail water system is novel, reasonable and feasible in structure, and is good in running state after being put into operation.
Although the present invention has been described with reference to a few preferred embodiments, it should be understood that various changes and modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. An underground tailwater system of a hydroelectric power plant, the underground tailwater system comprising:
a diversion tunnel;
the tail water branch pipe is arranged on the side wall of the diversion tunnel, close to the hydropower station, and is communicated with the diversion tunnel; the tail water branch pipe is used for being communicated with a tail water outlet of the hydropower station;
the vertical shaft is arranged on the top wall of the diversion tunnel along the vertical direction and is communicated with the diversion tunnel;
and the connecting hole is communicated with one end of the vertical shaft, which is far away from the diversion tunnel.
2. The underground tail water system of claim 1, further comprising:
the water supply branch pipe is arranged on the side wall of the diversion tunnel, close to the hydropower station, and is communicated with the diversion tunnel; the water supply branch pipe is used for being communicated with a water supply outlet of the hydropower station.
3. An underground tail water system according to claim 1 or 2, further comprising:
and the tail water pool is connected between the vertical shaft and the connecting hole.
4. An underground tailwater system according to claim 3, wherein a pipe cross-sectional area of the tailwater pool is greater than a pipe cross-sectional area of the connection hole.
5. An underground tailwater system according to claim 3, wherein the shaft, the connecting hole, and the tailwater pool are all located below ground.
6. An underground tail water system according to claim 1 or 2, further comprising:
and the water outlet gate is arranged on the outlet of the diversion tunnel and used for plugging or opening the diversion tunnel.
7. An underground tailwater system according to claim 1, wherein the number of tailwater branch pipes is 4.
8. A subterranean tail water system according to claim 2, wherein the number of the water supply branch pipes is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222590991.6U CN218116360U (en) | 2022-09-29 | 2022-09-29 | Underground tail water system of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222590991.6U CN218116360U (en) | 2022-09-29 | 2022-09-29 | Underground tail water system of hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218116360U true CN218116360U (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222590991.6U Active CN218116360U (en) | 2022-09-29 | 2022-09-29 | Underground tail water system of hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218116360U (en) |
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2022
- 2022-09-29 CN CN202222590991.6U patent/CN218116360U/en active Active
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