严重事故工况高温环境下爆破阀药筒驱动装置可用性研究  

Study on Availability of Cartridge Drive Device of Squib Valve in High Temperature Condition under Severe Accident

作　　者：包堂堂[1] 周强强[1] 顾春辉[1] 张志超[1] 乐秀辉[1] 

机构地区：[1]上海核工程研究设计院,上海200233

出　　处：《核安全》2016年第1期38-42,共5页Nuclear Safety

基　　金：国家科技重大专项-核电泵;阀;电气设备及测量仪表研制;项目编号2012ZX06002-015

摘　　要：本文利用通用流体计算软件,建立了爆破阀传热模型,采用稳态及瞬态求解器对AP1000型核电厂正常工况和严重事故工况下的爆破阀传热过程进行了计算与研究。计算过程中实时监测药筒壁面最高温度随时间的变化,计算结果为验证爆破阀在严重事故工况下的可用性提供了理论依据。研究结论如下:正常工况下,药筒壁面最高温度约为75℃;严重事故工况下,阀体表面与空气的对流换热系数分别采用10、50及100 W·m^(-2)·K^(-1)三种条件进行计算,药筒壁面最高温度分别达到95.7℃、124.8℃及154.8℃。计算结果表明,严重事故期间,药筒壁面最高温度不超过160℃,不会对爆破阀所用火药性能产生重大影响。The heat transfer model of squib valve was established using general purpose computational fluid dynamics（CFD） code in this paper. The heat transfer process of squib valve under normal condition and severe accident condition was calculated and studied by using steady-state and transient solver. The max temperature of cartridge wall was monitored in real time,the calculation results provided theoretical basis for squib valve availability under severe accident condition. The main conclusions were as follows：the max temperature of cartridge wall under normal condition was about 75℃;The convective heat transfer coefficients used in this calculation were 10, 50 and 100 W·m^-2·K^-1 respectively, the max temperatures of cartridge wall in accordance with this three calculation conditions were 95.7℃,124.8℃ and 154.8℃ respectively. The calculation results showed that the max temperature of cartridge wall under severe accident condition was less than 160℃,which shall not have a significant impact on the squib valve propellant performance.

关 键 词：爆破阀 严重事故 传热 可用性 

分 类 号：TL48[核科学技术—核技术及应用]