大亚湾核电站意外硼稀释事故预防措施研究  

Research of Preventive Measures for Heterogeneous Boron Dilution Accident in Daya Bay NPP

作　　者：董超群[1] 谢波[2] 

机构地区：[1]中科华核电技术研究院有限公司,广东深圳518124 [2]中国核动力研究设计院,成都610041

出　　处：《核动力工程》2015年第1期90-93,共4页Nuclear Power Engineering

摘　　要：核电站存在着因设计预想外硼稀释导致堆芯裸露损伤的风险。对意外硼稀释导致的临界事故的机理进行分析;介绍了潜在薄弱环节的改进措施,并对这些措施的有效性进行分析。结果表明,这些改进措施的实施显著提高了大亚湾核电站的安全水平,提高反应堆停堆工况下的安全水平。The nuclear power plants are possible to suffer the core uncovering damage due to the heterogeneous boron dilution which is out of the design basis. This paper analyzes the mechanism of criticality accident caused by the heterogeneous boron dilution, and study the measures to prevent the erroneous dilution. The implementation of the improvement measures greatly improves the safety level of the Daya Bay NPP, especially effectively improves the safety level under the reactor shutdown conditions.

关 键 词：意外硼稀释 快稀释 慢稀释 

分 类 号：TM623.1[电气工程—电力系统及自动化]