三代核电DBA环境试验装置改造设计研究  

Design Improvement of DBA Environmental Test Facility for Generation Ⅲ Nuclear Power Plants

作　　者：邢立淼[1] 湛力[1] 谢旭[1] 吴小飞[1] 许世杰[1] 徐长哲 马楠 Xing Limiao;Zhan Li;Xie Xu;Wu Xiaofei;Xu Shijie;Xu Changzhe;Ma Nan(Nuclear Power Institute of China,Chengdu,610213,China)

机构地区：[1]中国核动力研究设计院

出　　处：《核动力工程》2019年第6期95-99,共5页Nuclear Power Engineering

摘　　要：中国核动力研究设计院环境鉴定试验装置因试验开始初期试验腔内热冲击温度拉峰能力不足、热冲击过程中试验腔内温度分布不均匀等问题难以满足三代核电反应堆失水事故(LOCA)环境试验的要求。针对存在问题,利用数值计算软件RELAP5对试验装置改造设计进行了数值分析,依据分析结果对环境鉴定试验装置进行了设计及改造。改造后装置试验结果表明,装置在热冲击阶段的温度拉峰能力大大提高,温度均匀性得到明显改善,满足三代核电设计基准事故(DBA)环境试验曲线的要求。The environmental qualification test facility of Nuclear Power Institute of China, cannot meet the requirement of the environmental test of loss of coolant accident(LOCA) in the third generation NPPs, for the issues such as the inadequate capability of temperature rising and the uneven temperature distribution in the test chamber during the thermal shock. To solve these issues, the RELAP5 code was used for the numerical analysis for the design improvement of the test facility. Based on results of the numerical analysis, the facility was improved. The test results from the improved facility demonstrated that the capability of temperature rising in the test chamber during the thermal shock and the uniformity of the temperature distribution was largely improved. The new facility meets the requirements of design base accident(DBA) environmental test for the third generation NPPs.

关 键 词：AP1000 环境试验 装置改造 

分 类 号：TL375.6[核科学技术—核技术及应用]