钠冷快增殖堆池式钠火事故分析计算  

Analysis and Calculation of the Pool Sodium Fire Accident of LMFBR

作　　者：王学容[1] 朱继洲[1] 

机构地区：[1]西安交通大学,西安710049

出　　处：《核科学与工程》2000年第3期260-265,281,共7页Nuclear Science and Engineering

基　　金：国家自然科学基金!(批准号 19785 0 0 2 )

摘　　要：针对钠冷快堆严重事故下可能发生的池式钠火事故 ,描述了钠火现象 ,采用池式钠火程序SOFIREⅡ的“一腔室”模型 ,并在该模型基础上 ,更客观地模拟池式钠火过程 ,编制程序POOLFIRE。SOFIREⅡ认为池式钠火过程一开始就生成Na2 O和Na2 O2 的混合物 ,生成量也不确定。POOLFIRE认为早期生成Na2 O ,大约 30分钟后向Na2 O2 转变 ,最后计算得出池式钠火引起的安全壳内温度及压力响应 。As for the pool sodium fire which may appear in the severe accident of LMFBR, the phenomenon of sodium firing is described. A POOLFIRE program with the modified SOFIRE Ⅱ one cell model is developed, which computes in a more realistic manner. In the SOFIRE Ⅱ model, a mixture of Na 2O and Na 2O 2 is formed from the beginning and the quantities of Na 2O and Na 2O 2 are uncertain. The POOLFIRE accounts for the formation of Na 2O in an early stage of the fire and shifts to the formation of Na 2O 2 at a later stage in about 30 minutes. Finally the temperature and pressure of the containment are calculated,and the results are compared with those of SOFIRE Ⅱ.

关 键 词：钠冷快增殖堆 池式钠火 安全壳 事故分析 

分 类 号：TL415[核科学技术—核技术及应用] TL364.4