CN221030007U - Energy dissipation structure of flood discharge tunnel water outlet - Google Patents
Energy dissipation structure of flood discharge tunnel water outlet Download PDFInfo
- Publication number
- CN221030007U CN221030007U CN202321933186.7U CN202321933186U CN221030007U CN 221030007 U CN221030007 U CN 221030007U CN 202321933186 U CN202321933186 U CN 202321933186U CN 221030007 U CN221030007 U CN 221030007U
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- energy dissipation
- dissipation tank
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- water
- flood
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- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000005192 partition Methods 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000009991 scouring Methods 0.000 abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000008093 supporting effect Effects 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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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- Sewage (AREA)
Abstract
The utility model relates to an energy dissipation structure of a water outlet of a flood discharge tunnel. Is suitable for the technical field of water conservancy and hydropower engineering. The technical scheme adopted by the utility model is as follows: the utility model provides a flood discharge hole delivery port's energy dissipation structure which characterized in that: an energy dissipation tank is arranged at the outlet of the flood discharging tunnel, the downstream side wall of the energy dissipation tank is in an overflow weir type, the top of the energy dissipation tank is provided with a current stabilizing plate, the downstream side of the current stabilizing plate is fixed on the overflow weir, the left side and the right side of the steady flow plate are fixed on the side wall of the energy dissipation tank, a plurality of vertical partition walls which are arranged along the flow direction of the flood discharging tunnel are arranged between the steady flow plate and the bottom plate of the energy dissipation tank, and meanwhile, anti-impact steel plates are arranged on the bottom plate and the side wall of the energy dissipation tank. Therefore, after the water flow at the upstream of the dam flows out from the water outlet of the flood discharge hole, the water flow can flow into the energy dissipation tank, the vertical partition wall and the current stabilizing plate in the energy dissipation tank play an effective energy dissipation role on the water flow, after more water flows are stored in the energy dissipation tank, the water flow in the energy dissipation tank can flow into a downstream river channel from the overflow weir at the downstream of the energy dissipation tank, and the scouring damage to the downstream river channel can be effectively reduced.
Description
Technical Field
The utility model relates to an energy dissipation structure of a water outlet of a flood discharge tunnel. Is suitable for the technical field of water conservancy and hydropower engineering.
Background
The water and electricity is clean energy, renewable, pollution-free, low in operation cost, convenient for carrying out electric power peak regulation, and beneficial to improving the utilization rate of resources and the comprehensive benefits of economy and society. Under the condition that the traditional energy of the earth is increasingly tense, the world countries are generally preferential to develop hydropower, and the hydropower resource is greatly utilized.
Hydropower stations generally mainly comprise four major parts of a water retaining building (dam), a flood discharging building (spillway or gate), a diversion building (diversion canal or tunnel, including a pressure regulating well) and a power station factory building (including a tail canal and a booster station).
Role of dam: the water level is intercepted, the water level is raised, a reservoir is formed, and the water level difference between the upstream and the downstream is caused, so that the power station has the basic condition of hydroelectric power generation. On a dam type hydropower station with reservoir capacity adjustment, the dam simultaneously realizes the dual functions of centralizing the fall of a river segment and adjusting the flow in a river, thereby serving the hydropower station and also having the functions of flood prevention, irrigation, shipping, industrial water supply and the like.
Spillway and water drain hole function: flood discharge is also called as flood discharge building because flood is discharged, flood is prevented from overflowing and flood is prevented from overflowing, and safety of a dam is ensured. Some water discharge buildings can also be used for emptying reservoirs or construction diversion and the like. The drainage building can be divided into two types of spillways and deep drainage channels according to drainage modes.
After the dam is built, the precipitation in the area above the dam site is blocked in the warehouse. And residents such as villages and towns often exist at the downstream of the dam site, flood is discharged according to natural flood flow with the same frequency by utilizing the flood-stagnation capacity of the reservoir, the flood-prevention burden of downstream river channels is not increased, and artificial flood is not caused. The flow speed and the stable flow state should be reduced as much as possible when flood is discharged, atomization is reduced, and the like, so that the safety of downstream river channels is prevented from being threatened.
The outlet of the common cone valve adopts free leakage flow, the jet flow speed reaches 20m/s, the kinetic energy of water flow is large, and the atomization phenomenon is easy to generate, thereby threatening the safety of downstream river channels.
Disclosure of utility model
The utility model aims to solve the technical problems that: in order to solve the technical problems, the utility model provides an energy dissipation structure of a water outlet of a flood discharge tunnel.
The technical scheme adopted by the utility model is as follows: the utility model provides a flood discharge hole delivery port's energy dissipation structure which characterized in that: the energy dissipation pond is arranged on the downstream side of the water outlet of the flood discharge tunnel, the downstream side wall of the energy dissipation pond is in an overflow weir type, the top of the energy dissipation pond is provided with the current stabilizing plate, the current stabilizing plate is fixed on the overflow weir, and a plurality of vertical partition walls which are the same as the flow direction of flood discharge water flow are arranged between the current stabilizing plate and the bottom plate of the energy dissipation pond. Therefore, after the water flow at the upstream of the dam flows out from the water outlet of the flood discharge tunnel, the water flow flows into the energy dissipation pool, the vertical partition wall and the flow stabilizing plate have an effective energy dissipation effect on the water flow, and after the water flow passes through the energy dissipation pool for energy dissipation, the water flow flows into a downstream river channel at the downstream of the overflow dam, so that the scouring damage to the downstream river channel can be effectively reduced; the vertical partition wall arranged between the current stabilizer and the energy dissipation tank bottom plate partitions the energy dissipation tank, so that water flowing out of the water outlet of the flood discharge tunnel is split and dissipated, the energy dissipation effect is enhanced, and meanwhile, the vertical partition wall has a good supporting effect on the current stabilizer.
And an anti-impact steel plate is paved on the side wall of the energy dissipation tank. Thus, the anti-scouring device has good anti-scouring effect on the energy dissipation pool and the overflow weir.
The beneficial effects of the utility model are as follows: according to the utility model, the energy dissipation pool is arranged at the water outlet of the flood discharge tunnel, the steady flow top plate is arranged at the top of the pool, and the vertical partition wall is arranged in the pool, so that the energy dissipation efficiency can be effectively improved, the water flow is stabilized, the scouring damage influence on a downstream river channel is reduced, and the arranged vertical partition wall can also play a role in stably supporting the steady flow plate.
Drawings
Fig. 1: the plane structure of the utility model is schematically shown.
Fig. 2: in fig. 1, section A-A.
In the figure: 1. a conical valve; 2. an energy dissipation pool; 3. a steady flow plate; 4. a vertical partition wall; 5. a scour protection steel plate; 6. an overflow weir; 7. a downstream waterway; 8. and a flood discharge tunnel outlet.
Detailed Description
The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.
The embodiment is an energy dissipation structure of a water outlet of a flood discharging tunnel, a conical valve 1 is arranged at the water outlet of the flood discharging tunnel 8 and used for controlling the opening and closing of the water outlet of the flood discharging tunnel 8, the conical valve 1 is closed in the water storage process of a reservoir at the upstream of the flood discharging tunnel 8, and the conical valve 1 is required to be opened when flood discharging is required.
In the embodiment, an energy dissipation tank 2 is arranged on the downstream side of the flood discharge tunnel 8, and the downstream side wall of the energy dissipation tank 2 is arranged in the form of an overflow weir 6. In this way, in the flood discharging process, water flows into the energy dissipation tank 2 through the water outlet of the flood discharging hole 8 and dissipates energy in the energy dissipation tank 2, and after the water dissipated by the energy dissipation tank 2 accumulates in the energy dissipation tank 2 to be higher than the weir top of the overflow weir 6, the water in the energy dissipation tank 2 flows into the downstream river channel 7 through the overflow weir 6.
In the embodiment, the side walls of the energy dissipation tank 2 are paved with the anti-flushing steel plates 5, so that flushing of water flow to the energy dissipation tank 2 and the overflow weir 6 can be effectively weakened.
In this embodiment, a current stabilizer 3 is disposed at the top of the energy dissipation tank 2, the downstream side of the current stabilizer 3 is fixed on the overflow weir 6, and the left and right sides of the current stabilizer 3 are fixed on the side walls of the energy dissipation tank. Therefore, the water flow sprayed from the water outlet of the flood discharging tunnel 8 can be effectively prevented from being directly sprayed from the top of the overflow weir 6 due to the too high flow speed, and after the water flow in the energy dissipation pond 2 is accumulated to a certain amount, the water flow can flow from the top of the overflow weir 6 to the downstream river 7.
In this embodiment, a plurality of vertical partition walls 4 are disposed between the stabilizer 3 and the bottom plate of the energy dissipating tank 2 along the water flow direction of the flood discharge hole 8, and in this embodiment, three vertical partition walls 4 are disposed in parallel. Therefore, the vertical partition wall 4 has a good supporting effect on the current stabilizer 3, and meanwhile, the vertical partition wall 4 also has a diversion effect on water flow sprayed from the water outlet of the flood discharge tunnel 8, so that the energy dissipation effect is greatly enhanced.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (3)
1. The utility model provides a flood discharge hole delivery port's energy dissipation structure which characterized in that: the energy dissipation device comprises an energy dissipation tank (2) arranged on the downstream side of a flood discharging hole (8), wherein the downstream side wall of the energy dissipation tank (2) is in an overflow weir (6) type, a current stabilizing plate (3) is arranged at the top of the energy dissipation tank (2), the downstream side of the current stabilizing plate (3) is fixed on the overflow weir (6), the left side and the right side of the current stabilizing plate are fixed on the side wall of the energy dissipation tank (2), and a plurality of vertical partition walls (4) which are arranged along the water flow direction of the flood discharging hole (8) are arranged between the current stabilizing plate (3) and the bottom plate of the energy dissipation tank (2).
2. The energy dissipation structure of a spillway tunnel water outlet of claim 1, wherein: and an anti-impact steel plate (5) is paved on the side wall of the energy dissipation tank (2).
3. The energy dissipation structure of a spillway tunnel water outlet of claim 1, wherein: the overflow weir (6) at the downstream side of the energy dissipation pool (2) is connected to the downstream river channel (7) in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321933186.7U CN221030007U (en) | 2023-07-21 | 2023-07-21 | Energy dissipation structure of flood discharge tunnel water outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321933186.7U CN221030007U (en) | 2023-07-21 | 2023-07-21 | Energy dissipation structure of flood discharge tunnel water outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221030007U true CN221030007U (en) | 2024-05-28 |
Family
ID=91136223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321933186.7U Active CN221030007U (en) | 2023-07-21 | 2023-07-21 | Energy dissipation structure of flood discharge tunnel water outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221030007U (en) |
-
2023
- 2023-07-21 CN CN202321933186.7U patent/CN221030007U/en active Active
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