Hydrogen elimination system and method combining outside containment and inside containment, active and passive

Abstract

The present invention belongs to a reactor design technology, specifically to an outside-containment active and inside-containment passive combined hydrogen elimination system and a method thereof. The system comprises a containment hydrogen monitoring subsystem, a passive containment hydrogen elimination subsystem and an active hydrogen compositor subsystem. According to the present invention, an outside-containment active and inside-containment passive combined hydrogen elimination mean is adopted to increase diversity of hydrogen elimination measures, solve design defects of the existing hydrogen elimination mean, increase reliability of the hydrogen elimination system, and minimize failure risk of the hydrogen elimination system, such that a concentration of hydrogen inside the containment is controlled to a safety range in the case of accidents so as to avoid hydrogen explosion.

Description

technical field [0001] The invention belongs to reactor design technology, and in particular relates to a hydrogen elimination system and method combining the outside of the containment and inside the containment, active and passive. Background technique [0002] After a design basis accident or a severe accident in a nuclear power plant, a large amount of hydrogen may accumulate in the containment, and may react with oxygen in the containment to cause deflagration and explosion, resulting in high temperature and overpressure in the containment, thus endangering The integrity of the containment and the leakage of radioactivity from the containment exceeding the specified value may also cause damage to necessary systems and components after the accident. The Fukushima accident in Japan further confirmed the great harm of hydrogen explosion and the necessity of taking hydrogen elimination measures. Therefore, in the design of nuclear power plants, means of hydrogen eliminatio...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a new nuclear power plant hydrogen elimination system and method for the design defects of the single hydrogen elimination means in the prior art, which combines the active hydrogen elimination means outside the containment and the passive hydrogen elimination means inside the containment Combined to increase the diversity of the hydrogen elimination system and improve the reliability of the hydrogen elimination system under accident conditions

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