A nuclear power plant reinforced concrete containment explosion-proof pressure relief device

Abstract

The invention relates to a nuclear power plant reinforced concrete containment explosion-proof pressure relief device. The device consists of the following components: a piston fixed and blocked at the pressure relief port on the top of the containment vessel and a protective cover covering the outside of the piston, the protective cover is firmly connected with the containment vessel; the device also includes The airbag of the radioactive gas ejected from the pressure relief port when the piston is broken or ejected under pressure; the airbag is wrapped around the pressure relief port, or the airbag is arranged on the protective cover superior. The invention solves the pressure release problem of the reinforced concrete containment of the nuclear power plant when internal explosion or high internal pressure occurs, avoids serious nuclear leakage that may be caused by the overall damage of the containment, and provides a reliable guarantee for the safe operation of the nuclear power plant. , easy to disassemble and replaceable pressure relief device, can be widely used in the design of traditional pressurized water reactor nuclear power plants, has broad market prospects.

Description

technical field [0001] The invention belongs to the technical field of nuclear power engineering, and in particular relates to an explosion-proof pressure relief device for a reinforced concrete containment vessel of a nuclear power plant. Background technique [0002] 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 scale under construction in the world, and it is the country with the fastest development of nuclear power in the world. However, the safe operation of nuclear power plants is still a key concern in the development of nuclear power. The Fukushima nuclear acci...

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Problems solved by technology

[0004] In order to overcome and avoid the deficiency that the internal explosion high pressure of the existing nuclear power plant containment cannot be released, the present invention proposes a nuclear power plant reinforced concrete containment explosion-proof pressure relief device, which can effectively prevent hydrogen from accumulating inside the containment and prevent The occurrence of safety accidents that threaten the containment due to deflagration or explosion caused by excessive hydrogen concentration

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