辐射防护 ›› 2022, Vol. 42 ›› Issue (5): 460-466.

• 核与辐射事故应急准备与对策 • 上一篇    下一篇

华龙一号操作干预水平研究

刘蕴1, 龙亮1, 邢继1, 崔浩2, 黄树明1, 薛娜1, 邱林1   

  1. 1.中国核电工程有限公司,北京 100840;
    2.生态环境部核与辐射安全中心,北京 102401
  • 收稿日期:2021-06-21 出版日期:2022-09-20 发布日期:2022-10-17
  • 通讯作者: 崔浩。E-mail:cuihao@chinansc.cn
  • 作者简介:刘蕴(1990—),女,2012年毕业于南京理工大学计算机科学与技术专业,2017年毕业于清华大学核科学与技术专业,获博士学位,高级工程师。E-mail:yun-liu12@tsinghua.org.cn

Study on operational intervention level for HPR1000

LIU Yun1, LONG Liang1, XING Ji1, CUI Hao2, HUANG Shuming1, XUE Na1, QIU Lin1   

  1. 1. China Nuclear Power Engineering Co. Ltd., Beijing 100840;
    2. Nuclear and Radiation Safety Center, Beijing 102401
  • Received:2021-06-21 Online:2022-09-20 Published:2022-10-17

摘要: 操作干预水平(OIL)的制定是核动力厂应急准备的重要内容。为使华龙一号核电机型符合国际核应急管理的先进规范,基于国际原子能机构(IAEA)最新的OIL分类和制定方法,采用华龙一号核电机型二级概率安全分析(PSA)严重事故源项,开展OIL的制定研究,分析IAEA OIL默认值对华龙一号的适用性。结果显示:华龙一号二级PSA事故在停堆前10天内的OIL2γ值低至60 μSv/h,是IAEA默认值的3/5;其余OIL类别的计算值均能被IAEA默认值所包络。对华龙一号核电机型,建议停堆前10天的OIL2γ设定值不大于60 μSv/h,OIL4γ设定值依据厂址放射性自然本底和监测仪表性质取1~4 μSv/h,其余OIL可取为IAEA默认值。

关键词: 操作干预水平, 核应急, 华龙一号, 严重事故

Abstract: The development of operational intervention level (OIL) is important in emergency preparedness for nuclear power plants. In order to meet the requirement of international nuclear emergency management, the OILs for HPR1000 are calculated and studied based on the latest OIL derivation methodology of the International Atomic Energy Agency (IAEA). The level two probabilistic safety analysis (PSA) severe accident source terms of HPR1000 are used, and the applicability of OIL default values of IAEA are analyzed. The results showed that the values of OIL2γ dose rate of HPR1000 within the first 10 days after the reactor shutdown are as low as 60 μSv/h, which is 3/5 of the default value of IAEA. Other OILs of HPR1000 are within the range of the default values of IAEA. The setting value of OIL2γ less than 60 μSv/h within the first 10 days after reactor is recommended, the setting value of OIL4γ dose rate should be 1-4 μSv/h according to the natural radioactive background at the site and the nature of the characteristics of monitoring instrument, and the other OILs should be set as the default values of IAEA.

Key words: operational intervention level, nuclear emergency, HPR1000, severe accident

中图分类号: 

  • TL73