FACILITY FOR COOLING NUCLEAR REACTOR CONTAINMENT VESSEL

• Main Authors: ISHIDA NAOYUKI, SUSUKI AKIRA
• Format: Patent
• Language: English
• Published: 17.01.1997
• Edition: 6
• Subjects: GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

PURPOSE: To provide a facility for cooling a nuclear reactor containment vessel wherein removal of decay heat is performed and release for an environment of leaking radioactive material is minimized by effectively cooling the nuclear reactor containment vessel at the time of an accident. CONSTITUTION: A facility for cooling a nuclear reactor containment vessel comprises an annulus 3 part formed between a steel-made containment vessel l and a structure covering it, a suction opening, an exhaust opening 6, a filter 4 and a fan 7. If an accident wherein temperature in the containment vessel abnormally increases should occur, the fan T is rotated automatically or by the operation of an operator. A large quantity of air supplied by the fan 7 to the annulus part 3 effectively cools the steel-made containment vessel 1. Radioactive material leaked to the annulus part 3 is removed by the filter 4 set in the exhaust opening 6.