Device used for large water level amplitude of reservoir, intercepting dirt and ensuring flood discharge and electricity generation safety

Abstract

The invention provides a device used for large water level amplitude of a reservoir, intercepting dirt and ensuring flood discharge and electricity generation safety. The device comprises a right bankslope, a left bank slope, an anchor cable, an anchor head and a concrete base, wherein the anchor cable and the anchor head are arranged in the right bank slope and the left bank slope, and the concrete base is arranged on the slope feet of the right bank slope and the left bank slope. Stand columns are arranged on the concrete base in a buried manner. The stand columns are connected with the anchor head through transverse connecting rods. A fixed intercepting net is arranged between the stand columns and the right bank slope and the left bank slope. A floating intercepting net is arranged between the stand columns of the right bank slope and the left bank slope. The floating intercepting net connects a sleeve ring with balls and the stand columns through a high-strength steel cable. An upper portion high-strength steel cable and a lower portion high-strength steel cable are arranged on the upper portion and the lower portion of the floating intercepting net correspondingly. The lowerportion high-strength steel cable is provided with a floating ball. The dirt floating on the water surface is intercepted through the floating intercepting net. The device can well adapt to the largewater level amplitude of the reservoir, the dirt can be effectively intercepted, during the flood discharge period, a flood discharge channel can be prevented from being blocked by the dirt, and theharm of dam flooding of flood is avoided.

Description

technical field [0001] The invention relates to a device used for large variation of water level of a reservoir, intercepting dirt, and ensuring safety of flood discharge and power generation. Background technique [0002] When a reservoir is built in an area with uneven runoff, the water level of the reservoir often fluctuates greatly. When there is a lot of sewage from the upstream of the reservoir, it is often necessary to install a waste blocking device. The ubiquitous floating debris poses safety hazards to project operations, and the impact of floating debris on the water diversion system for power generation is particularly serious. Usually, trash racks are arranged at the water diversion inlet of the power station to intercept floating dirt in the reservoir area, but due to the large amount of dirt, the trash racks are often blocked, which may lead to a decrease in water head and reduced unit output, affecting power generation efficiency; severe cases may damage the ...

AI Technical Summary

Problems solved by technology

[0013] Due to the use of buoys on the water, the traditional sewage blocking device often has a large water blocking area on the water surface, resulting in a large horizontal tension, resulting in a large size of the anchor piers on both sides, especially when the water level varies greatly, and the engineering volume is even greater. Large, large investment, and difficult construction

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