Method for reducing flood discharge atomized rain in covering mode

Abstract

The invention relates to a method for reducing flood discharge atomized rain in a covering mode, and relates to the field of flood discharge. According to the technical scheme, the method for reducing the flood discharge atomized rain in the covering mode is characterized in that a shielding device is arranged above a plunge pool on the outer side of a high dam; two ends of the shielding device are fixed to bank slopes on two sides; the width of the front-and-back direction of the shielding device is 2 to 3 times of the width of a water falling point of flood discharge water in the plunge pool; the front-and-back direction is the projection of the spraying direction of the flood discharge water on the horizontal surface; and the flood discharge water of a flood discharge tunnel falls to the position under the shielding device, and the atomized rain produced by the flood discharge water under the shielding device is mostly shielded by the shielding device, so that the leakage of the flood discharge atomized rain is reduced. The shielding device is formed by covering a grid support frame with a transparent thin film. In the water flow direction, cord fabric is hung at the front endof the shielding device and drops to the water surface of the plunge pool. The upper part, the side surfaces and the front part of the flood discharge water falling point are enclosed, so that the airflow is reduced favorably, and the flood discharge atomized rain is further reduced.

Description

technical field [0001] The invention relates to the field of flood discharge; in particular, it reduces the amount of flood discharge mist and rain formed in the air due to the diffusion of water mist caused by flood discharge. Background technique [0002] In the flood discharge of high dams, the flood discharge has a large potential energy. The discharge flood water sprays and falls, and the potential energy is converted into kinetic energy. The discharge flood water with large kinetic energy rubs against the air and hits the water surface to form a large water mist. The friction with the air is mainly concentrated in the column of the discharge flood water. On the outside, the amount of fog and rain produced is not very large, and the water mist formed by hitting the water surface is the main part. The water mist generated by the flood discharge spreads with the air flow, resulting in a large water content in the air outside the high dam. The water mist is composed of sma...

AI Technical Summary

Problems solved by technology

The water mist generated by the flood discharge spreads with the air flow, resulting in a large water content in the air outside the high dam. The water mist is composed of small water droplets. It is easy to exceed the heavy rain in nature, and compared with the heavy rain in nature, the duration of flood discharge fog and rain is very long, which may easily lead to danger on the bank slope within 1-2 kilometers outside the high dam, and may also easily cause the equipment of the power plant to be threatened (e.g. short circuit) etc.

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