Passive nuclear power plant steel containment cooling system and working method thereof

• Main Authors: CAI LONGTING, XIA SHUAN, ZHENG MINGGUANG, WANG YUE, HUANG RUOTAO, WANG GUODONG, NIU TINGTING, XIA LIMING, ZHANG DI, LEE DONG-JO, SHI GUOBAO, WANG FANGWEN, HUANG SIYANG, HUANG JINGYU, CHEN ZHUO, XIANG XUZHONG, YAN JINQUAN, CHEN JUN, ZHANG PEILAI, MEI QILIANG
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• Subjects: NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS

The invention belongs to the technical field of nuclear power plant containment cooling, and provides a passive nuclear power plant steel containment cooling system and a working method thereof. The plurality of air guide plates are arranged at the middle upper end outside the steel containment in a layered manner; the shielding cover is arranged outside the plurality of air guide plates; an air inlet is formed in the side surface of the upper end of the shielding cover; an air outlet is formed in the middle of the top; an air auxiliary inlet is formed in the side surface of the bottom end of the shielding cover; the air guide plate is only arranged at the middle upper end outside the steel containment, and the air guide plate is not arranged at the lower end; meanwhile, an air auxiliary inlet is formed in the side surface of the bottom end of the shielding cover and is used for assisting air passing through the descending section to enter the air ascending section in a baffling manner when a fault occurs, so