Pressure relief device of reinforced concrete containment of nuclear power plant

Abstract

The invention relates to a pressure relief device of a reinforced concrete containment of a nuclear power plant, the pressure relief device comprises a piston and a protective cover, the piston is fixedly sealed at a pressure relief opening in the top of the containment, the protective cover covers the outer side of the piston, and the protective cover and the containment are firmly connected together; the pressure relief device further comprises a safety air bag which is used for absorbing and storing a radioactive gas ejected by the pressure relief opening when the piston is broken or ejected out by pressing; the safety air bag covers the peripheral side of the pressure relief opening, or the safety air bag is arranged on the protective cover; and the pressure relief device further comprises a protective net used for separating the piston and the inner cavity of the containment. The pressure relief device solves the difficult problem of pressure release during internal explosion or high internal pressure of the reinforced concrete containment of the nuclear power plant, serious nuclear leakage possibly caused by overall damage of the containment is avoided, and a reliable, easy-to-detach and replaceable pressure relief device is provided for safe operation of the nuclear power plant, can be widely applied to the design of a traditional pressurized water reactor nuclear powerplant and has a wide market prospect.

Description

[0001] The present invention is a divisional application. The application date of the original application is April 14, 2017, and the application number is 201710245188.X. The name is a nuclear power plant reinforced concrete containment explosion-proof pressure relief device. technical field [0002] The invention belongs to the technical field of nuclear power engineering, and in particular relates to a pressure relief device for a reinforced concrete containment of a nuclear power plant. Background technique [0003] As a stable and clean energy, nuclear energy has developed rapidly in recent decades. my country's "Nuclear Power Medium and Long-Term Development Plan (2011-2020)" and "Energy Development Strategic Action Plan (2014-2020)" propose that by 2020, the installed capacity of nuclear power will reach 58 million kilowatts. At present, the scale of nuclear power units under construction in my country ranks first in the world, accounting for more than 40% of the scal...

AI Technical Summary

Problems solved by technology

However, once a hydrogen explosion occurs inside the containment of a nuclear power plant, the containment will withstand the explosion and the internal pressure will suddenly rise. The internal pressure cannot be released in time, causing the containment to crack and damage, resulting in the leakage of radioactive materials. The consequences are disastrous

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