辐射防护通讯 ›› 2023, Vol. 43 ›› Issue (3-4): 42-50.

• 《核电厂辐射安全风险管控技术与经验》专刊 • 上一篇    下一篇

核电站某起源项异常事件调查研究

李建龙, 蒋韦韦, 李雁鹏, 龙林, 郭飞, 陈子良   

  1. 苏州热工研究院有限公司,广东 深圳,518120
  • 收稿日期:2023-06-12 出版日期:2023-08-20 发布日期:2023-10-24
  • 作者简介:李建龙(1981—),男,2004年毕业于南华大学核工程与核技术专业,高级工程师。E-mail:43473187@qq.com

Investigation of a Source Term Abnormal Event in a Nuclear Power Plant

Li Jianlong, Jiang Weiwei, Li Yanpeng, Long Lin, Guo Fei, Chen Ziliang   

  1. Suzhou Institude of Thermal Engineering, Shenzhen, Guangdong 518120
  • Received:2023-06-12 Online:2023-08-20 Published:2023-10-24

摘要: 国内某电厂大修机组辐射水平偏高、大修累积集体剂量偏高,下行至热停平台时RCP系统辐射指数很高,以放射性核素Co-60为主,氧化净化后整体辐射指数偏高,对比另外3台机组及该机组大修数据,机组整体辐射情况处于最高水平。本文主要介绍该机组辐射源项偏高原因及调查过程。

关键词: 压水堆核电站, 18个月换料, 源项, 辐射

Abstract: The radiation level of a reactor unit of a domestic power plant during overhaul is high. The cumulative collective dose during overhaul is also high. When descending to the hot stop platform the radiation index of the RCP system is very high. mainly for radionuclide Co-60. The overall radiation index after oxidation and purification is relatively high. Compared with the other three reactor units, the overall radiation level of the reactor unit under overhaul is at the highest level. This paper mainly introduces the causes for the high radiation source of the reactor unit and the investigation process.

Key words: PWR, 18 months refueling, Source term, Radiation

中图分类号: 

  • TL75