Layered flood discharge structure for reducing flood discharge fog rainfall

Abstract

The invention discloses a layered flood discharge structure for reducing a flood discharge fog rainfall, relates to the field of flood discharge, and reduces the flood discharge fog rainfall. A flooddischarge port is divided into multiple water outlet channels, and is longitudinally cut in the vertical direction; all the water outlet channels are rectangular; the top water outlet channel is horizontal, and the rest water outlet channels are downwards bent; included angles between tangent lines of the upper surfaces of the inner walls of water outlets in a water flowing direction and the horizontal direction are called as emitting angles; from the bottom water outlet channel to the top water outlet channel, the emitting angles are gradually reduced; and the area of the water outlet of thetop water outlet channel is 80-90% of the area of a water inlet thereof. The emitting angle of the bottom water outlet channel is 45 degrees. The width of the water outlet of each water outlet channelin the horizontal direction is larger than the widths of the water outlets of the water outlet channels on the lower side in the horizontal direction; and the center lines of all the water outlets are positioned in one plane. A water guide plate is arranged on the upper surface of the water outlet of the top water outlet channel. The structure has the beneficial effect of greatly reducing the flood discharge fog rainfall.

Description

Technical field [0001] The invention relates to the field of flood discharge, in particular to the water mist formed by the water body under the impact of flood discharge. Background technique [0002] According to the description of professionals in the patent "A Method for Measuring the Rainfall Intensity of Flood Discharge Atomization in Hydropower Projects (Application No. 201210327163.1)": Flood discharge atomization refers to the generation of water in the local area downstream of the hub during the discharge process of the discharge structure of the hydropower project. rainfall and fog flow. The rainfall caused by flood discharge is often far greater than natural rainfall. At present, the maximum rain intensity measured by atomized rainfall from flood discharge reaches 5000mm / h, while the short-term rain intensity in conventional meteorology exceeds 1000-2000mm / h is extremely rare. [0003] It can be seen from the above documents that the fog and rain caused by flood...

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Problems solved by technology

[0003] It can be seen from the above documents that the fog and rain caused by flood discharge are very large and last for a long time, which poses a threat to the stability of the downstream bank slopes and the safety of electrical appliances and workshops in power stations. Therefore, how to reduce the amount of fog and rain caused by flood discharge is an urgent issue. question

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