| 摘要 |
<p>The present invention relates to a passive and sequential cooling device of a core melting material and a nuclear power plant with the same for sequentially cooling the core melting material inside and outside a reactor in a passive method. The passive and sequential cooling device of the core melting material includes an inner structure which is installed under a core inside the reactor by forming an empty hemisphere to mix the core melting material in the accident, and firstly cools the core melting material to relieve thermal shock applied to an external structure. The passive and sequential cooling device of the core melting material also includes an external structure which is installed under the reactor to mix the core melting material emitted from the reactor by the generation of erosion in the internal structure by the core melting material, and secondly cools the core melting material to inject coolant and gas to the core melting material.</p> |
