基于密度锁的非能动余热排出系统特性分析  

Characteristics Analysis for Passive Residual Heat Removal System Based on Density Lock

作　　者：陈薇[1] 阎昌琪[1] 谷海峰[1] 张楠[1] 

机构地区：[1]哈尔滨工程大学核科学与技术学院,哈尔滨150001

出　　处：《核动力工程》2010年第5期84-88,共5页Nuclear Power Engineering

基　　金：国家自然科学基金资助项目(50776022)

摘　　要：以基于密度锁的非能动余热排出系统为背景,通过实验对该系统正常运行时密度锁的封闭特性及事故工况下密度锁的开启特性进行了分析验证。用RELAP5/MOD3.2程序对发生事故时非能动余热排出回路瞬态运行特性进行了仿真,并与实验值进行比较,二者均符合较好。结果表明,正常工况下,密度锁能有效隔离主回路和余热排出回路,余热排出回路处于非工作状态;事故发生时,在较大的重力蓄能作用下,非能动余热排出系统能够瞬间投入工作,并逐渐建立稳定的自然循环以载出余热。Based on the passive residual heat removal system（PRHRS）,the closure of the density lock on normal condition and the startup of the density lock on accidents are analyzed by experiments,and the in-stantaneous characteristics of PRHRS after accident are simulated by RELAP/MOD3.2 code.The calculated results are compared with the experimental data,and they agree well.It is shown that on normal condition the density lock can separate the heat removal loop from the main loop,and the PRHRS does not work during this condition,while when the accident happens the PRHRS can operate instantly by different gravities in two loops and it will set up the steady natural circulation between the heat removal loop and the main loop to re-move the residual heat gradually.

关 键 词：密度锁 非能动余热排出 RELAP5/MOD3.2 

分 类 号：TL364[核科学技术—核技术及应用]