CN219430702U - Diversion open channel structure for reducing scouring of high-speed water flow on two sides - Google Patents
Diversion open channel structure for reducing scouring of high-speed water flow on two sides Download PDFInfo
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- CN219430702U CN219430702U CN202320169016.XU CN202320169016U CN219430702U CN 219430702 U CN219430702 U CN 219430702U CN 202320169016 U CN202320169016 U CN 202320169016U CN 219430702 U CN219430702 U CN 219430702U
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- outer guide
- guide walls
- bottom plate
- water flow
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Abstract
A diversion open channel structure for reducing scouring of high-speed water flow on two sides belongs to the field of hydraulic engineering. The structure comprises a bottom plate, inner guide walls, outer guide walls, a first notch and a second notch, wherein the bottom plate is arc-shaped and inclines along the downstream direction of a river channel, the inner guide walls and the outer guide walls are arranged on two sides of the bottom plate and deviate along the axial direction of the bottom plate, and the inner guide walls and the outer guide walls are gradually thickened from top to bottom; the top of the outer guide wall is provided with a triangular first notch, and the tail end of the outer guide wall is provided with a second notch. The structure design is scientific, the construction is convenient, and the problem that the outlet of the hydraulic engineering hydraulic building is used for washing the bank slope with high-speed water flow can be effectively solved.
Description
Technical Field
The utility model belongs to the field of hydraulic engineering, and particularly relates to a diversion open channel structure for reducing scouring of high-speed water flow on two sides.
Background
In hydraulic and hydroelectric engineering, high-speed water flow discharged from the overflow tunnel directly rushes against the bank, so that the bank slope of the bank is easy to be unstable. The river valley in mountain area is narrow, the river channel is bent, the high-flow-speed water flow tongue is long, the water flow direction is adjusted through the open channel guide wall at the outlet of the overflow tunnel, the bank is easy to wash, and potential safety hazards exist.
Disclosure of Invention
In order to prevent water flow from flushing the opposite bank, effectively protect the bank slope of the bank, reduce the impact force of water flow transverse diffusion on the centrifugal side guide wall, and provide powerful guarantee for the safety of the tunnel in the running period, the utility model provides a diversion open channel structure for reducing high-speed water flow from flushing the two banks.
The diversion open channel structure is characterized by comprising a bottom plate, inner guide walls, outer guide walls, a first notch and a second notch, wherein the bottom plate is arc-shaped and inclines along the downstream direction of a river channel, the inner guide walls and the outer guide walls are arranged on two sides of the bottom plate and deviate along the axial direction of the bottom plate, and the inner guide walls and the outer guide walls are gradually thickened from top to bottom; the top of the outer guide wall is provided with a triangular first notch, and the tail end of the outer guide wall is provided with a second notch.
Preferably, the first notch is a right triangle.
Preferably, the thickness of the second notch is consistent with the thickness of the outer guide wall.
The utility model has the beneficial effects that: the guide wall guides water flow to a downstream river channel to prevent water flow from flushing the opposite bank; the two notches drain a portion of the water flow to reduce the amount of water deflected to the bank and thereby reduce the water flow from flushing the bank. The structure design is scientific, the construction is convenient, and the problem that the outlet of the hydraulic engineering hydraulic building is used for washing the bank slope with high-speed water flow can be effectively solved.
Drawings
FIG. 1 is a schematic diagram of a flow-guiding open channel structure for reducing high-speed water flow flushing on both sides.
Wherein, 1-bottom plate, 2-interior guide wall, 3-outer guide wall, 4-first breach, 5-second breach.
Detailed Description
Example 1: and a certain outlet of a flood discharging sand flushing cavity of a certain large-scale hydropower junction project. Because the high-speed water flow washes the bank slope of the right bank, the design side provides a diversion open channel structure for reducing the high-speed water flow to wash the two banks, the structure is composed of a bottom plate 1, an inner guide wall 2, an outer guide wall 3, a first notch 4 and a second notch 5, the bottom plate 1 is arc-shaped and inclines along the downstream direction of the river, the inner guide wall 2 and the outer guide wall 3 are arranged on two sides of the bottom plate and deviate along the axial direction of the bottom plate, and the inner guide wall 2 and the outer guide wall 3 are gradually thickened from top to bottom; the top of the outer guide wall 3 is provided with a first notch 4 which is in the shape of a right triangle; the tail end of the outer guide wall 3 is provided with a second notch 5, and the thickness of the second notch 5 is consistent with that of the outer guide wall 3, so that the outer guide wall is gradually thickened from top to bottom.
By using the structure, the water flow is guided to a downstream river channel by the guide wall, so that the water flow is prevented from flushing the opposite bank; the two notches drain a portion of the water flow to reduce the amount of water deflected to the bank and thereby reduce the water flow from flushing the bank.
Claims (3)
1. The diversion open channel structure is characterized by comprising a bottom plate, inner guide walls, outer guide walls, a first notch and a second notch, wherein the bottom plate is arc-shaped and inclines along the downstream direction of a river channel, the inner guide walls and the outer guide walls are arranged on two sides of the bottom plate and deviate along the axial direction of the bottom plate, and the inner guide walls and the outer guide walls are gradually thickened from top to bottom; the top of the outer guide wall is provided with a triangular first notch, and the tail end of the outer guide wall is provided with a second notch.
2. The flow guide open channel structure for reducing flushing of two sides by high-speed water flow as set forth in claim 1, wherein said first notch is a right triangle.
3. A guide channel structure for reducing flushing of two banks by high velocity water as set forth in claim 1 wherein the second gap thickness is consistent with the thickness of the outer guide wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320169016.XU CN219430702U (en) | 2023-02-02 | 2023-02-02 | Diversion open channel structure for reducing scouring of high-speed water flow on two sides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320169016.XU CN219430702U (en) | 2023-02-02 | 2023-02-02 | Diversion open channel structure for reducing scouring of high-speed water flow on two sides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219430702U true CN219430702U (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320169016.XU Active CN219430702U (en) | 2023-02-02 | 2023-02-02 | Diversion open channel structure for reducing scouring of high-speed water flow on two sides |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219430702U (en) |
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2023
- 2023-02-02 CN CN202320169016.XU patent/CN219430702U/en active Active
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