High-strength intercepting net system for water intake of nuclear power plant

Abstract

The invention relates to a high-strength intercepting net system for a water intake of a nuclear power plant. The intercepting net system comprises a first intercepting net mechanism, the first intercepting net mechanism comprises a net bag intercepting unit and a plane intercepting unit arranged above the net bag intercepting unit, the net bag intercepting unit comprises a plurality of net bags which are used for carrying out intercepting underwater and collecting intercepted marine organisms, and the plane intercepting unit comprises a blocking mesh which is connected to the upper parts of the net bags and is used for preventing the marine organisms from passing from the sea surface above the net bags. According to the high-strength intercepting net system for the water intake of the nuclear power plant, reasonable arrangement of the net bag intercepting unit and the plane intercepting unit is adopted, the marine organisms are intercepted and finally flow into the net bags, the adhesiveness of the net is reduced, so that the interception rate of the marine organisms can be effectively increased, compared with a common fishing net, the high-strength intercepting net system has a relatively longer service life, and therefore the reliability of a cold source is further comprehensively improved, and the problem that normal production of the power plant is influenced due to the outbreak of the marine organisms in a power plant on a coastal region can be effectively solved.

Description

technical field [0001] The invention relates to the safety field of nuclear power plants, in particular to a high-strength interception net system for water intakes of nuclear power plants. Background technique [0002] The operating status of the water intake of the nuclear power plant directly affects the safe operation and reliability of the power plant. In order to deal with the invasion of marine organisms in the nuclear power plant, the usual method is to set up interception nets or remove them by manual salvage. However, conventional interception nets are mostly Anchor blocks and buoys are used to fix the block, and the structure is weak against wind and waves. At the front end of the inlet channel with poor cover conditions, under the action of wind, waves and currents, the force of the block is complicated, especially when a large number of marine organisms erupt. From the point of view of force, the pure pull-net structure has weak impact resistance, and its struct...

AI Technical Summary

Problems solved by technology

[0002] The operating status of the water intake of the nuclear power plant directly affects the safe operation and reliability of the power plant. In order to deal with the invasion of marine organisms in the nuclear power plant, the usual method is to set up interception nets or remove them by manual salvage. However, conventional interception nets are mostly Anchor blocks and buoys are used to fix the block, and the structure is weak against wind and waves. At the front end of the inlet channel with poor cover conditions, under the action of wind, waves and currents, the force of the block is complicated, especially when a large number of marine organisms erupt. From the point of view of force, the pure pull-net structure has weak impact resistance, and its structural safety factor is low; moreover, the conventional interception net is mostly made of nylon net, and its durability in marine environment, Corrosion resistance and anti-sea organisms are poor in performance, need to be replaced frequently, and the maintenance cost is high; in addition, conventional interception nets cannot achieve full-section interception

For example, there are gaps and loopholes between the blocking net and the slope surface of the inlet channel and the river bed surface, which form the channel for marine organisms to enter the water intake of the power station; block friction, resulting in very strong wear, and because the existing interception net adopts the floating and fixed method of buoys, the phenomenon of marine organisms or floating objects crossing the net sometimes occurs in the wind and wave environment

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