A vortex chamber inlet structure of a swirling flood discharge tunnel for improving water flow

A technology of flood discharge tunnels and vortex chambers, which is applied in water conservancy projects, hydroelectric power generation, hydropower stations, etc., can solve the problems of insufficient energy dissipation in the downstream, large rise height of vortex chamber water flow, etc., to reduce water surface climbing and improve water flow state, the effect of reducing the height difference of the water surface
CN113089598BActive Publication Date: 2022-07-22POWERCHINA XIBEI ENG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
POWERCHINA XIBEI ENG
Publication Date
2022-07-22

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Abstract

The invention provides a vortex chamber inlet structure of a swirling flood discharge tunnel for improving the flow state of water flow, which includes a water diversion tunnel and a vortex chamber, and also includes a transition section and a water dividing wall, and the transition section is the connection section between the diversion tunnel and the vortex chamber. , the water dividing wall is arranged on the transition section. The vortex chamber inlet structure of the whirlpool flood discharge tunnel provided by the invention improves the flow state of the water flow. When the water flows through the transition section and the water dividing wall, the thickness of the whirling water flow in the whirl chamber increases, the water surface climbs up greatly, and the water surface of the whirling water current in the whirl chamber is high. The difference is also reduced, which can improve the water flow pattern.
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Description

technical field

[0001] The invention belongs to the technical field of swirl energy dissipation in water conservancy and hydropower engineering, and particularly relates to a swirl flood discharge tunnel inlet structure for improving water flow state. Background technique

[0002] To build a power station in the alpine and canyon areas, it is generally necessary to build several diversion tunnels. For the diversion tunnels with large investment, if they are only used during the construction of the dam, it is not economical. Therefore, the temporary building diversion tunnels are converted into permanent building flood discharge tunnels. It is a more economical solution, and the use of swirl energy dissipation technology is one of the important technologies for converting diversion tunnels into flood discharge tunnels.

[0003] The working principle of swirl energy dissipation is to use the rotating motion of water flow to consume most of the water energy inside the flow chan...

Claims

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