CN215165356U - Energy dissipation and emptying structure for small and medium-sized hydraulic buildings - Google Patents
Energy dissipation and emptying structure for small and medium-sized hydraulic buildings Download PDFInfo
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- CN215165356U CN215165356U CN202120469660.XU CN202120469660U CN215165356U CN 215165356 U CN215165356 U CN 215165356U CN 202120469660 U CN202120469660 U CN 202120469660U CN 215165356 U CN215165356 U CN 215165356U
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Abstract
The utility model provides an energy dissipation emptying structure for small and medium-sized hydraulic buildings, which comprises an air-defense energy dissipation ridge arranged in a dam body; one side of the air-defense energy-dissipation bank is provided with a stilling pool, and the other side of the air-defense energy-dissipation bank is provided with an air-release energy-dissipation side wall; the air-defense energy dissipation ridge is step-shaped, the height of the step at the highest layer is greater than that of the stilling pool side wall of the stilling pool, and the height of the step at the lowest layer is equal to that of the stilling pool side wall; the height of the emptying energy dissipation side wall is gradually reduced along with the height of the air-defense energy dissipation ridge, but the lowest height is larger than the height of the upper water flow of the air-defense energy dissipation ridge. The utility model discloses simple structure, engineering volume are little, construction convenience, engineering investment are few, can greatly reduce the washing away of rivers to the absorption basin, guarantee peripheral people's quality of life, and application prospect is comparatively wide.
Description
Technical Field
The utility model relates to an energy dissipation emptying structure for middle-size and small-size hydraulic structure belongs to hydraulic and hydroelectric engineering technical field.
Background
At present, the development of domestic water and water conservancy electrical engineering in China already occupies the international leading level, and with the improvement of the living demand of people, more and more small and medium-sized reservoirs are produced at the same time, and the water and water conservancy electrical engineering is used for water taking, irrigation, ecological construction or tourism business of people in villages and cities and the like.
In order to ensure the safe operation of the hydraulic structure, an emptying facility needs to be arranged for overhauling the hydraulic structure. For some small and medium-sized reservoirs, a flood discharge facility and a water taking and emptying facility need to be arranged respectively, a stilling basin is generally arranged at the tail end of the flood discharge facility so as to reduce the scouring of water flow on a downstream river channel, and meanwhile, the water flow in the emptying pipe is also directly put into the stilling basin. However, in the above situation, the difference between the water intake and air discharge elevation and the elevation of the stilling basin is too large or the emptying pipe needs to turn, for example, the common stilling basin structure for flood discharge and air discharge disclosed in the chinese patent with the application number of 201920448521, which causes great emptying noise and great scouring to the stilling basin, and may seriously affect the life of people around.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an energy dissipation emptying structure for middle-size and small-size hydraulic structure, this an energy dissipation emptying structure for middle-size and small-size hydraulic structure's simple structure through the step overflow, carries out the energy dissipation to rivers in the emptying pipe, and then reduces the washing away of rivers to the pool that disappears.
The utility model discloses a following technical scheme can realize.
The utility model provides an energy dissipation emptying structure for small and medium-sized hydraulic buildings, which comprises an air-proof energy dissipation ridge arranged in a dam body; one side of the air-defense energy-dissipation bank is provided with a stilling pool, and the other side of the air-defense energy-dissipation bank is provided with an air-release energy-dissipation side wall; the air-defense energy dissipation ridge is step-shaped, the height of the step at the highest layer is greater than that of the stilling pool side wall of the stilling pool, and the height of the step at the lowest layer is equal to that of the stilling pool side wall; the height of the emptying energy dissipation side wall is gradually reduced along with the height of the air-defense energy dissipation ridge, but the lowest height is larger than the height of the upper water flow of the air-defense energy dissipation ridge.
The height-to-width ratio of the steps is 1:0.75-1: 1.
The width of the emptying energy dissipation side wall is 0.2-0.5 m.
The air-defense energy dissipation ridge and the air-release energy dissipation side wall are both formed by pouring C40 concrete.
The beneficial effects of the utility model reside in that: the structure is simple, the work amount is small, the construction is convenient, the project investment is small, the scouring of water flow to the stilling basin can be greatly reduced, the life quality of surrounding people is ensured, and the application prospect is wide.
Drawings
Fig. 1 is a plan view of the present invention;
fig. 2 is a schematic structural view of the air-defense energy-dissipation sill of the utility model;
in the figure: 1-air-proof energy dissipation ridge, 2-air-release energy dissipation side wall, 3-stilling basin, 4-stilling basin side wall, 5-dam body, 6-water flow direction and 7-gate valve chamber.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 and 2, an energy dissipation emptying structure for small and medium-sized hydraulic buildings comprises an anti-empty energy dissipation ridge 1 arranged in a dam body 5; one side of the air-defense energy-dissipation bank 1 is provided with a stilling pool 3, and the other side of the air-defense energy-dissipation bank is provided with an air-release energy-dissipation side wall 2 which is used for guiding and ensuring the flow of the water to flow into the stilling pool; the air-defense energy dissipation ridge 1 is step-shaped, the height of the step at the highest layer is greater than that of the stilling pool side wall 4 of the stilling pool 3, and the height of the step at the lowest layer is equal to that of the stilling pool side wall 4, so that water flows into the stilling pool conveniently; the height of the emptying energy dissipation side wall 2 is gradually reduced along with the height of the air-break energy dissipation ridge 1, but the lowest height is greater than the height of the upward water flow of the air-break energy dissipation ridge 1.
The height-to-width ratio of the steps is 1:0.75-1: 1.
The width of the emptying energy dissipation side wall 2 is 0.2-0.5 m.
The air-defense energy-dissipation sill 1 and the air-release energy-dissipation side wall 2 are both formed by pouring high-grade concrete, such as C40.
Specifically, after water flows out of the emptying pipe, the water flows down along the emptying energy dissipation ridge and flows into the stilling basin under the guidance of the emptying energy dissipation side wall.
Examples
As mentioned above, the structure is positioned in the dam body 5 with the height of 60m and consists of the emptying energy dissipation ridge 1 and the emptying energy dissipation side wall 2, and the emptying energy dissipation ridge 1 and the emptying energy dissipation side wall 2 are both formed by pouring C40 concrete. The emptying energy dissipation sill 1 is step-shaped, the height of a single step is 20cm, the width of the step is 15cm, and the steps are 20 steps in total, namely the total height of the emptying energy dissipation sill 1 is 4 m.
Further, one side of the emptying energy dissipation bank 1 is connected with the stilling pool 3, the other side of the emptying energy dissipation bank is provided with an emptying energy dissipation side wall 2, the emptying energy dissipation side wall 2 is higher than the corresponding emptying energy dissipation bank by 1.2m, and the width of the emptying energy dissipation side wall 2 is 0.3 m. Under the guidance of the emptying energy dissipation side wall 2, water flow in the emptying pipe flows into the stilling basin 3 along the water flow direction 6.
Specifically, the water flow enters the emptying energy dissipation ridge 1 after coming out of the emptying pipe, most of the water flow flows into the stilling pool 3 along the water flow direction 6, and a small part of the water flow flows into the stilling pool 3 from the side edge of the emptying energy dissipation ridge 1.
To sum up, the utility model has the advantages of as follows:
1. the emptying pipe does not need to turn, and the water flow condition is improved;
2. when emptying, the water flow flows downwards along the steps, so that the energy dissipation effect of the water flow is enhanced, and the scouring of the water flow to surrounding buildings can be reduced;
3. the length of the emptying pipeline can be reduced, and the noise in the pipe can be reduced;
4. simple structure is practical, and the engineering volume is little, and construction convenience, the engineering investment is few.
Claims (4)
1. The utility model provides an energy dissipation unloading structure for middle-size and small-size hydraulic structure, is including setting up antiaircraft energy dissipation bank (1) in dam body (5), its characterized in that: one side of the air-defense energy-dissipation bank (1) is provided with a stilling pool (3), and the other side is provided with an air-release energy-dissipation side wall (2); the air-defense energy dissipation sill (1) is step-shaped, the height of the step at the highest layer is greater than that of the stilling pool side wall (4) of the stilling pool (3), and the height of the step at the lowest layer is equal to that of the stilling pool side wall (4); the height of the emptying energy dissipation side wall (2) is gradually reduced along with the height of the air-break energy dissipation sill (1), but the lowest height is greater than the height of the upper water flow of the air-break energy dissipation sill (1).
2. An energy dissipation emptying structure for small and medium-sized hydraulic structures as claimed in claim 1, which is characterized in that: the height-to-width ratio of the steps is 1:0.75-1: 1.
3. An energy dissipation emptying structure for small and medium-sized hydraulic structures as claimed in claim 1, which is characterized in that: the width of the emptying energy dissipation side wall (2) is 0.2-0.5 m.
4. An energy dissipation emptying structure for small and medium-sized hydraulic structures as claimed in claim 1, which is characterized in that: the air-defense energy-dissipation sill (1) and the air-release energy-dissipation side wall (2) are both formed by pouring C40 concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120469660.XU CN215165356U (en) | 2021-03-04 | 2021-03-04 | Energy dissipation and emptying structure for small and medium-sized hydraulic buildings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120469660.XU CN215165356U (en) | 2021-03-04 | 2021-03-04 | Energy dissipation and emptying structure for small and medium-sized hydraulic buildings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215165356U true CN215165356U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120469660.XU Active CN215165356U (en) | 2021-03-04 | 2021-03-04 | Energy dissipation and emptying structure for small and medium-sized hydraulic buildings |
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| Country | Link |
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| CN (1) | CN215165356U (en) |
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2021
- 2021-03-04 CN CN202120469660.XU patent/CN215165356U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221104 Address after: 550000 No. 16 Xingqian Road, Guanshan Lake District, Guiyang City, Guizhou Province Patentee after: China water resources and hydropower construction engineering consulting Guiyang Co.,Ltd. Address before: 550081 Xingshan Lake District, Guiyang, Guizhou Province, No. 16 Patentee before: CHINA POWER CONSRTUCTION GROUP GUIYANG SURVEY AND DESIGN INSTITUTE Co.,Ltd. |