CEFR过热器热流密度对结垢的影响研究与清洗周期评估方法的初步建立  

The Study of heat flux density effects to Scaling Development in Superheater of China Experimental Fast Reactor and Establishment of Cleaning Cycle Assessment

作　　者：张琭 吴纯良[1] 詹佳硕 郑向阳 吴强[1] 

机构地区：[1]中国原子能科学研究院,北京102413 [2]环境保护部与辐射安全中心,北京100082

出　　处：《核科学与工程》2016年第5期640-645,共6页Nuclear Science and Engineering

摘　　要：中国实验快堆(CEFR)采用的过热器作为钠-水回路的压力边界,对反应堆安全承担着重要的作用。一旦其传热管汽侧由于结垢腐蚀发生泄漏,将导致严重的钠水反应事故发生。因此对CEFR过热器汽侧结垢规律的研究对快堆安全运行起到至关重要的作用。本文针对不同的水质工况研究过热器的结垢规律,同时还拟合出了相应的结垢速率公式,对过热器的清洗周期提出相应的指导意见,对今后过热器安全稳定运行具有重要意义。The steam superheater worked as pressure boundary of Na-H2 O loop in China Experimental Fast Reactor（CEFR）,which was quite important for nuclear reactor safety.Once the tubes separating the vapor from steam leak because of corrosion by scaling,Na-H2 O reaction would lead to severe accident.So it＇s critically important to study how the scaling develops on the water-steam sides.It shows us how the scaling development on the tube surfaces of steam loop in superheater under different water quality situations.Meanwhile,the scaling rate formula was found,which could provide some useful guidance on the superheater cleaning cycle,it also has an important role for the safe and stable operation of the superheater.

关 键 词：快堆 过热器 结垢 过热器清洗 

分 类 号：TL35[核科学技术—核技术及应用]