Method of Bridge Covering to Reduce Fog and Rain in Flood Discharge

Abstract

The invention relates to a method of reducing flood discharge fog rain by a bridge type cover, and belongs to the field of flood discharge. A bridge is erected from one side bank slope of a water cushion pond to the other side bank slope, bridge holes correspond to flood discharge holes, the corresponding means that flood from any one of the flood discharge holes only shoots into the surface of the water below one of the bridge holes, any bridge hole at most receives the flood of one flood discharge hole, and a water dropping point, below the bridge holes, of the flood discharging flood is located at the middle rear below the bridge holes. In terms of the direction of current, the middle rear area means that the front end of the water dropping point can reach the midpoint of the water surface below the bridge holes at most; and along the direction of the current, no flood discharge falling water exists in the lower water surface between the middle point and the front of the bridge holes, the bridge holes, the side near the flood discharge holes, is the rear, and the bridge holes, the side far away from the flood discharge holes, is the front. Most of spilled water fog through flooddischarge water can be blocked by the surface below the bridge holes, thus the out discharging of the flood discharge water fog is reduced, and thus the flood discharge fog rain on downstream both bank slopes is reduced. The front end of the bridge holes is provided with sagging curtains to further reduce the out discharge of the flood discharge fog and rain.

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 from the flood discharge tunnel has a relatively large potential energy. When the discharge flood sprays and falls, the potential energy is converted into kinetic energy. Friction) is mainly concentrated on the outside of the flood discharge column, and its amount is not very large. The water mist formed by the final impact of the flood discharge column on 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 actually composed of many small water droplets. The collision between small water droplets merges into large water dro...

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 actually composed of many small water droplets. The collision between small water droplets merges into large water droplets and falls to form flood discharge fog and rain. Its rainfall can easily 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 leads to dangerous situations on the slopes within 1-2 kilometers outside the high dam, and it is easy to cause damage to the equipment of the power plant. under threat (e.g. short circuit), etc.

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