核电运行及事故颗粒物运动沉积分析方法研究  

Study on the method of nuclear power operation and analysis of movement and deposition of accident particles

作　　者：周涛[1,2,3] 李子超 李兵[1,2,3] 秦雪猛 朱亮宇 石顺[1,2,3] ZHOU Tao;LI ZiChao;LI Bing;QIN XueMeng;ZHU LiangYu;SHI Shun(School of Nuclear Science and Engineering,North China Electric Power University,Beijing 102206,China;Institute of Nuclear Thermal-Hydraulic Safety and Standardization,North China Electric Power University,Beijing 102206,China;Beijing Key Laboratory of Passive Safety Technology for Nuclear Energy,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学核科学与工程学院,北京102206 [2]华北电力大学核热工安全与标准化研究所,北京102206 [3]华北电力大学非能动核能安全技术北京市重点实验室,北京102206

出　　处：《中国科学：物理学、力学、天文学》2019年第11期20-42,共23页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家重点研发计划专项课题(编号:2016YFC1402500);北京市自然科学基金(编号:3172032)资助

摘　　要：颗粒物的运动沉积对核电正常及事故工况的运行特性有重要影响.本文分析了颗粒物对核电安全影响的背景、内涵及重要性;概括了颗粒物和介质的基本特性、受力及受力模型、运动沉积模型;给出了核电在正常运行、设计基准事故及严重事故工况下颗粒物类型的分布.对比了国内外分析颗粒物运动特性的数值模拟方法、程序计算方法及实验分析方法;数值模拟和程序计算方法周期短、成本低;实验分析方法则更加接近真实情况;三者可相互补充、相互验证;数值模拟和程序计算的分析结果与实验方法的实验结果趋势符合较好.得出对核电系统颗粒物运动特性的研究还处于初级阶段,需要了解其运动特性,尽量降低颗粒物的危害.指出了未来核电颗粒物运动沉积的研究方向,为核电运行及事故下颗粒物运动沉积研究提供了理论基础.The movement and deposition of particulates play an important role under normal and abnormal operation conditions in nuclear power plants.The background, connotation and importance of the particulates influence on nuclear power plants security are analyzed. The basic characteristics, force and force models, and motion deposition models of particulates and the medium are summarized. The particulates distribution types of nuclear power plants in normal operation condition,design basis accidents and severe accidents conditions are given. The numerical simulation methods, program calculation methods and experimental methods for analyzing particulates motion characteristics at home and abroad are compared. It is concluded that the numerical simulation and the program calculation methods have the advantages of short period, low cost, and the experimental method is closer to the real situation. The three methods can complement and verify each other. The trend of numerical simulation and program calculation are in good agreement with the experimental results.The study on the motion characteristics of particulates in nuclear power system is still in its infancy, and it is necessary to understand its motion characteristics so as to minimize the hazards of particulates. The direction of future analysis methods for the movement of nuclear power particles is pointed out. It provides a theoretical basis for the study of the movement and deposition of particulates under normal operation and accident conditions in nuclear power plants.

关 键 词：核电站 严重事故 颗粒物 运动沉积 分析方法 

分 类 号：F42[经济管理—产业经济]