CN220266475U - Water flow opposite-flushing energy dissipation type flood discharge steep tank - Google Patents
Water flow opposite-flushing energy dissipation type flood discharge steep tank Download PDFInfo
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- CN220266475U CN220266475U CN202321822032.0U CN202321822032U CN220266475U CN 220266475 U CN220266475 U CN 220266475U CN 202321822032 U CN202321822032 U CN 202321822032U CN 220266475 U CN220266475 U CN 220266475U
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Abstract
The utility model relates to the field of flood discharge steep grooves, in particular to a water flow opposite-flushing energy dissipation type flood discharge steep groove. It comprises a groove body; one side of the groove body is provided with a flood discharging surface which is connected with the reservoir, and the other side is provided with a diversion surface which is connected with the river channel. The upper end of the flood discharge surface is provided with a plurality of groups of opposite impact energy dissipation strips along the overflow direction, and the lower end is provided with a power dissipation bucket. The power bucket comprises a plurality of groups of reverse arc sections and low nose ridges of the flip angles; a buffer platform is arranged between the adjacent anti-arc sections. The bottom of the groove body is provided with a flushing pit matched with the low nose ridge. The flood discharge steep tank of the utility model firstly carries out opposite-impact energy dissipation by a plurality of groups of opposite-impact energy dissipation bars. Then the water flow enters a dissipating scoop, forms swirling and rolling repeatedly through a plurality of groups of anti-arc sections, dissipates force through a buffer platform and is diffused. This is repeated, and finally drained through the low-nose ridge to the flushing pit. And the water flow interception is finally realized, the impact is reduced, and the safety of flood discharge is ensured.
Description
Technical Field
The utility model relates to the field of flood discharge steep grooves, in particular to a water flow opposite-flushing energy dissipation type flood discharge steep groove.
Background
The dam built in the hydraulic engineering is used for generating power by intercepting water flow or supplying water and irrigation by intercepting water flow and water storage, and the technical measures that the water quantity which is not used up is needed to be rendered and discharged when flood comes must be considered so as to protect the safety of hydropower stations and reservoir buildings. The technical measures are embodied in flood discharge buildings such as flood discharge tanks, flood discharge holes, flood discharge gates and the like in hydraulic engineering. The flood discharge steep groove is a flood discharge building which is commonly used for discharging surplus water in a storage area.
The Chinese patent with the publication number CN101294378B discloses a flood discharge steep tank provided with a water flow opposite-flushing energy dissipation ridge, which is characterized in that at least one corrugated energy dissipation ridge is arranged in the flood discharge steep tank along the horizontal direction, the height of the energy dissipation ridge is lower than the depth of contracted water, and the height of the energy dissipation ridge close to the upstream part is lower than the height of the energy dissipation ridge positioned at the downstream part.
The energy dissipation mode of the flood discharge steep tank in the prior art is single, and water flow is intercepted only by the relief ridge along the horizontal aspect. Therefore, the direction and the mode of intercepting the water flow are single, and the limitation of the energy dissipation effect is large.
Disclosure of Invention
Aiming at the problems in the background technology, the water flow opposite-flushing energy dissipation type flood discharge steep tank is provided. Through the step-by-step opposite flushing, multidirectional energy dissipation finally realizes the rivers interception, reduces the impact, guarantees the safety of flood discharge.
The utility model provides a water flow opposite-impact energy dissipation type flood discharge steep tank, which comprises a tank body; one side of the groove body is provided with a flood discharging surface which is connected with the reservoir, and the other side is provided with a diversion surface which is connected with the river channel. The upper end of the flood discharge surface is provided with a plurality of groups of opposite impact energy dissipation strips along the overflow direction, and the lower end is provided with a power dissipation bucket. The power bucket comprises a plurality of groups of reverse arc sections and low nose ridges of the flip angles; a buffer platform is arranged between the adjacent anti-arc sections. The bottom of the groove body is provided with a flushing pit matched with the low nose ridge.
Preferably, the anti-arc radius r=6-10 m of the anti-arc segment.
Preferably, the flip angle of the low sill is 40 ° -50 °.
Preferably, the low sill is diffusion type.
Preferably, the length of the cushioning platform is 20-50m.
Preferably, the opposite-impact energy dissipation strips are of wavy structures, and the adjacent opposite-impact energy dissipation strips are arranged in parallel at equal intervals.
Preferably, the opposite impact energy dissipation strip is provided with an opposite impact surface and a back impact surface; an arc-shaped flow guide section is arranged between the opposite punching surface and the back punching surface.
Preferably, the included angle between the opposite flushing surface and the flood discharging surface is a; the angle a is more than or equal to 180 degrees and is more than or equal to 90 degrees.
Preferably, the tank body is a reinforced concrete structure.
Compared with the prior art, the utility model has the following beneficial technical effects:
the flood discharge steep tank of the utility model firstly carries out opposite-impact energy dissipation by a plurality of groups of opposite-impact energy dissipation bars. Then the water flow enters a dissipating scoop, forms swirling and rolling repeatedly through a plurality of groups of anti-arc sections, dissipates force through a buffer platform and is diffused. This is repeated, and finally drained through the low-nose ridge to the flushing pit. And the water flow interception is finally realized, the impact is reduced, and the safety of flood discharge is ensured.
Drawings
FIG. 1 is a cross-sectional view of one embodiment of the present utility model (view I);
FIG. 2 is a cross-sectional view of an embodiment of the present utility model (view II);
fig. 3 is an enlarged view at a in fig. 2.
Reference numerals: 1. a tank body; 2. flood discharge surface; 3. a flow guiding surface; 4. opposite impact energy dissipation strips; 401. facing; 402. a back punching surface; 403. an arc-shaped diversion section; 5. a reverse arc section; 6. a bucket for dissipating the force; 7. flushing the pit; 8. a buffer platform; 9. low sill.
Detailed Description
Example 1
As shown in fig. 1-2, the water flow opposite-impact energy dissipation type flood discharge steep tank provided by the utility model comprises a tank body 1; one side of the tank body 1 is provided with a flood discharging surface 2 which is connected with a reservoir, and the other side is provided with a diversion surface 3 which is connected with a river channel. The upper end of the flood discharge surface 2 is provided with a plurality of groups of opposite impact energy dissipation strips 4 along the overflow direction, and the lower end is provided with a power dissipation scoop 6. The power-dissipating scoop 6 comprises a plurality of groups of anti-arc segments 5 and a low nose ridge 9 for picking angles; a buffer platform 8 is arranged between the adjacent anti-arc sections 5. The bottom of the tank body 1 is provided with a flushing pit 7 matched with a low nose ridge 9.
The working principle of this embodiment is as follows: when the reservoir discharges flood, the water flow firstly flows downwards along the flood discharge surface 2. Firstly, energy is absorbed by the multiple groups of opposite impact energy absorbing strips 4. Then the water flow enters the absorption scoop 6, repeatedly forms swirling through the plurality of groups of anti-arc sections 5, absorbs the force through the buffer platform 8 and is diffused again. This is repeated and finally drained through the low sill 9 to the flushing pit 7. And the water flow interception is finally realized, the impact is reduced, and the safety of flood discharge is ensured.
Example two
As shown in fig. 1-2, the water flow opposite-impact energy dissipation type flood discharge steep tank provided by the utility model comprises a tank body 1; one side of the tank body 1 is provided with a flood discharging surface 2 which is connected with a reservoir, and the other side is provided with a diversion surface 3 which is connected with a river channel. The upper end of the flood discharge surface 2 is provided with a plurality of groups of opposite impact energy dissipation strips 4 along the overflow direction, and the lower end is provided with a power dissipation scoop 6. The power-dissipating scoop 6 comprises a plurality of groups of anti-arc segments 5 and a low nose ridge 9 for picking angles; a buffer platform 8 is arranged between the adjacent anti-arc sections 5. The bottom of the tank body 1 is provided with a flushing pit 7 matched with a low nose ridge 9.
It should be further noted that the arc-reversing radius r=6-10 m of the arc-reversing segment 5.
It should be further noted that the flip angle of the low nose ridge 9 is 40 ° -50 °.
It should be further noted that the low sill 9 employs diffusion.
It should be further noted that the length of the cushioning platform 8 is 20-50m.
In this embodiment, a specific structure of the bucket 6 is provided, which includes a plurality of sets of anti-arc segments 5 and low nose ridge 9 of the bucket angle. The water flow forms a swirling in the anti-arc section 5, is buffered and rectified in the buffer platform 8, and enters the next anti-arc section 5 again. The purpose of repeatedly and repeatedly opposite-flushing energy dissipation is achieved.
Example III
As shown in fig. 1-2, the water flow opposite-impact energy dissipation type flood discharge steep tank provided by the utility model comprises a tank body 1; one side of the tank body 1 is provided with a flood discharging surface 2 which is connected with a reservoir, and the other side is provided with a diversion surface 3 which is connected with a river channel. The upper end of the flood discharge surface 2 is provided with a plurality of groups of opposite impact energy dissipation strips 4 along the overflow direction, and the lower end is provided with a power dissipation scoop 6. The power-dissipating scoop 6 comprises a plurality of groups of anti-arc segments 5 and a low nose ridge 9 for picking angles; a buffer platform 8 is arranged between the adjacent anti-arc sections 5. The bottom of the tank body 1 is provided with a flushing pit 7 matched with a low nose ridge 9.
It should be further noted that the arc-reversing radius r=6-10 m of the arc-reversing segment 5.
It should be further noted that the flip angle of the low nose ridge 9 is 40 ° -50 °.
It should be further noted that the low sill 9 employs diffusion.
It should be further noted that the length of the cushioning platform 8 is 20-50m.
It should be further noted that, the opposite impact energy dissipating strips 4 are in a wave-shaped structure, and the adjacent opposite impact energy dissipating strips 4 are arranged in parallel at equal intervals.
As shown in fig. 3, the opposite impact surface 401 and the opposite impact surface 402 are arranged on the opposite impact energy dissipating strip 4; an arc-shaped flow guide section 403 is arranged between the opposite flushing surface and the back flushing surface.
It should be further noted that the included angle between the opposite flushing face 401 and the flood discharging face 2 is a; the angle a is more than or equal to 180 degrees and is more than or equal to 90 degrees.
It should be further noted that the tank body 1 is a reinforced concrete structure.
In this embodiment, a specific structure of the opposite-impact energy dissipation strip 4 is provided, water flow is intercepted through the opposite-impact surface 401, is guided by the arc-shaped guide section 403, and then impacts the next opposite-impact energy dissipation strip 4, so that gradual energy dissipation is realized.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (9)
1. A water flow opposite-impact energy dissipation type flood discharge steep tank comprises a tank body (1); one side of the tank body (1) is provided with a flood discharging surface (2) which is connected with a reservoir, and the other side is provided with a diversion surface (3) which is connected with a river channel; it is characterized in that the method comprises the steps of,
the upper end of the flood discharge surface (2) is provided with a plurality of groups of opposite impact energy dissipation strips (4) along the overflow direction, and the lower end is provided with a power dissipation scoop (6);
the power-dissipating scoop (6) comprises a plurality of groups of anti-arc segments (5) and a low nose ridge 9 of a flip angle; a buffer platform (8) is arranged between the adjacent anti-arc sections (5);
the bottom of the groove body (1) is provided with a flushing pit (7) matched with the low sill (9).
2. A water flow counter-flushing energy dissipating type flood discharge chute according to claim 1, wherein the counter-arc radius R = 6-10m of the counter-arc section (5).
3. A water flow counter-flushing energy dissipating type flood discharge chute according to claim 1, wherein the angle of the low ridge (9) is 40 ° -50 °.
4. A water flow counter-flushing energy dissipating type flood discharge steep tank according to claim 1, wherein the low sill (9) is of a diffusion type.
5. A water flow counter-flushing energy dissipating type flood discharge chute according to claim 1, wherein the length of the buffer platform (8) is 20-50m.
6. The water flow opposite-impact energy dissipation type flood discharge steep tank as claimed in claim 1, wherein the opposite-impact energy dissipation strips (4) are of wavy structures, and the adjacent opposite-impact energy dissipation strips (4) are arranged in parallel at equal intervals.
7. A water flow opposite-impact energy dissipation type flood discharge steep tank according to claim 6, wherein an opposite-impact surface (41) and a back-impact surface (42) are arranged on the opposite-impact energy dissipation strip (4); an arc-shaped flow guide section (43) is arranged between the opposite flushing surface and the back flushing surface.
8. A water flow opposite-flushing energy dissipation type flood discharge steep tank as claimed in claim 7, wherein the angle between the opposite flushing surface (41) and the flood discharge surface (2) is a; the angle a is more than or equal to 180 degrees and is more than or equal to 90 degrees.
9. A water flow opposite-impact energy dissipation type flood discharge steep tank as claimed in claim 1, wherein the tank body (1) is of reinforced concrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321822032.0U CN220266475U (en) | 2023-07-12 | 2023-07-12 | Water flow opposite-flushing energy dissipation type flood discharge steep tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321822032.0U CN220266475U (en) | 2023-07-12 | 2023-07-12 | Water flow opposite-flushing energy dissipation type flood discharge steep tank |
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| CN220266475U true CN220266475U (en) | 2023-12-29 |
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| CN202321822032.0U Active CN220266475U (en) | 2023-07-12 | 2023-07-12 | Water flow opposite-flushing energy dissipation type flood discharge steep tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118128153A (en) * | 2024-04-18 | 2024-06-04 | 吉亮未来水科技(深圳)有限公司 | Drop shaft |
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2023
- 2023-07-12 CN CN202321822032.0U patent/CN220266475U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118128153A (en) * | 2024-04-18 | 2024-06-04 | 吉亮未来水科技(深圳)有限公司 | Drop shaft |
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