LOCA条件下典型包壳材料感应加热温升行为的模拟研究  

Simulation of Induction Heating Temperature Distribution of Typical Cladding Materials under LOCA Condition

作　　者：赵鑫[1] 张伟[1] 莫华均[1] 姚亮[1] 席航[1] Zhao Xin;Zhang Wei;Mo Huajun;Yao Liang;Xi Hang(The First Institute of China Nuclear Power Research and Design Institute,Chengdu Sichuan 610041,China)

机构地区：[1]中国核动力研究设计院第一研究所,四川成都610041

出　　处：《工程与试验》2020年第1期106-108,共3页Engineering and Test

基　　金：国防基础科研计划资助(JCKY2017201C016)。

摘　　要：本文以尺寸为20 mm×15 mm×15 mm的锆材为研究对象,结合反应堆失水事故的模拟工况环境,研究了锆材在不同感应加热速率下(20~900℃/min)的块体温升行为。根据模拟结果可知,当温度T在300℃<T<800℃范围内时,金属锆材以速率20℃/min加热至800℃,锆材表面中心温度与体积平均温度之间的值(ΔT)约为5.0℃;当800℃<T<1200℃,分别以速率50℃/min、300℃/min和900℃/min加热至1200℃,锆材的温度差值ΔT分别为18.4℃、29.3℃和29.2℃,即当加热速率大于300℃/min后,金属锆材内外温度差值基本稳定在29℃。上述结果表明,感应加热适用于反应堆失水事故下包壳材料所面临的超高温度及超快升温速率等的工况模拟需求,计算结果对反应堆设计和包壳材料选材等方面均具有一定的指导意义。In this paper,a zirconium material with a size of 20 mm*15 mm*15 mm was heated at different induction heating rates(20~900℃/min),combining with the simulated working conditions of the loss of coolant accident,and the temperature rising behavior was investigated.According to the simulation results,when the temperature T is in the range of 300℃<T<800℃,the metal zirconium is heated to 800℃at a rate of 20℃/min,and the difference between the center temperature of the zirconium surface and the volume average temperature(ΔT)~5.0℃;when 800℃<T<1200℃,heating to 1200℃at rates of 50℃/min,300℃/min and 900℃/min,respectively.The temperature differenceΔT of the zirconium material is 18.4℃,29.3℃And 29.2℃.When the heating rate is over 300℃/min,the internal and external temperature difference of the metal zirconium material is basically stable at^29℃.The above results show that the induction heating is suitable for the simulation requirements of the ultra-high temperature and ultra-fast heating rate faced by the cladding material under the loss of coolant accident.The calculation results are related to the reactor design and the material selection of the cladding materials and supply a certain guiding significance.

关 键 词：LOCA 感应加热 包壳材料 温升行为 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]