应急排风对缓解核事故辐射后果的试验研究  

Experimental Study on Emergency Ventilation to Reduce Nuclear Accident Consequence

作　　者：林晓玲[1] 牛文亮 陈迎锋[1] 

机构地区：[1]中国人民解放军92609部队 [2]海军司令部

出　　处：《核动力工程》2013年第3期124-125,163,共3页Nuclear Power Engineering

摘　　要：基于核舰船装备模型,模拟核事故时有关系统设备实际投入状态,以SF6气体作为示踪剂开展示踪试验。在反应堆舱释放示踪剂,监测分析应急排风系统运行和不运行两种情况下舰船内示踪剂浓度,并进行对比分析。研究表明,应急排风可大大缓解核事故辐射后果,运行30 min可将反应堆舱室核素活度降低99%以上;运行5 h后工作舱室核素活度几乎降为零;应急排风不运行情况下,舰船内核素活度下降不明显。Based on the model of nuclear ship equipment, the tracer diffusion experiments were conducted, with the related systems and facilities simulated in the actual conditions. SF6 was used as tracer, simulating the radioactive source tenn. The tracer was released in the reactor cabin, and the concentration of cabins were monitored separately in two different conditions, i.e., with and without the operation of emergency ventilator. The results were compared and analyzed. The study shows that emergency ventilating could reduce greatly the radioactivity in the ship. The radioactivity in the reactor cabin was reduced over 99% after the ventilator worked 30 minutes, and the radioactivity in other cabins were almost reduced to zero after 5 hours. In comparison, the reduction of radioactivity were not obvious without the operation of the ventilator.

关 键 词：应急排风 放射性核素活度 核事故 试验 

分 类 号：TL943[核科学技术—辐射防护及环境保护]