CONFINEMENT AND COOLING OF MELT FROM THE CORE OF A NUCLEAR REACTOR

CONFINEMENT AND COOLING OF MELT FROM THE CORE OF A NUCLEAR REACTOR

The invention relates to nuclear power industry, namely to systems providing safety of nuclear power plants (NPP), and can be used during severe accidents leading to reactor vessel and NPP containment failure. The melt cooling and confinement system includes a cone-shaped guide plate installed under...

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Hauptverfasser: SIDOROV, Aleksandr Stalevich, NEDOREZOV, Andrey Borisovich
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
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creator SIDOROV, Aleksandr Stalevich
NEDOREZOV, Andrey Borisovich
description The invention relates to nuclear power industry, namely to systems providing safety of nuclear power plants (NPP), and can be used during severe accidents leading to reactor vessel and NPP containment failure. The melt cooling and confinement system includes a cone-shaped guide plate installed under the reactor vessel bottom, cantilever girder installed under the guide plate and supporting the same, core catcher installed under the cantilever girder and equipped with cooled cladding in form of a multi-layer vessel for protection of the external heat-exchange wall from dynamic, thermal and chemical impacts, and filler material for melt dilution inside the multi-layer vessel. The said multi-layer vessel has external and internal metal walls with a filler that is highly heat-conductive in relation to wall material in between, where filler material thickness h fil meets the following criterion: 1.2h ext < h fil
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subjects NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
title CONFINEMENT AND COOLING OF MELT FROM THE CORE OF A NUCLEAR REACTOR
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