PASSIVE COOLING AND ARRESTING DEVICE FOR THE MOLTEN CORE MATERIAL
摘要
<p>Provided is an apparatus for passively cooling and retaining molten core material discharged from a damaged reactor vessel during a severe accident in the nuclear plant. The apparatus comprises: a molten core material retention tank to retain molten core material; a compressed gas tank storing high-pressure inert gas; a cooling water storage tank being installed higher than the molten core material retention tank; and a mixing means. The molten core material retention tank includes an outer retention vessel having at least one coolant hole, a porous protection vessel formed at an inside of the outer retention vessel, and a gravel layer formed between the outer retention vessel and the porous protection vessel. The apparatus can be installed in a reactor cavity without changing the compartment structure of a containment building, and makes it possible to prevent a steam explosion during the cooling process for the ultrahigh-temperature molten core material and to secure the reliability of the cooling process.</p>
申请公布号
WO2005076285(A1)
申请公布日期
2005.08.18
申请号
WO2005KR00369
申请日期
2005.02.07
申请人
KOREA ATOMIC ENERGY RESEARCH INSTITUTE;KOREA HYDRO & NUCLEAR POWER CO., LTD.;SONG, JIN-HO;KIM, HWAN-YEOL;MIN, BEONG-TAE;KIM, HEE-DONG