非能动安全壳围堰分配盒改进设计与试验  

Design Improvement and Testing of a Weir Distribution Box for Passive Containments

作　　者：王彦之 鲁仰辉 王妍 

机构地区：[1]国核华清(北京)核电技术研发中心有限公司,北京102209

出　　处：《动力工程学报》2017年第6期508-512,共5页Journal of Chinese Society of Power Engineering

基　　金：国家重大科技专项资助项目(2011ZX06002-005-003)

摘　　要：以冷却水在分配盒中的流动为研究对象,建立了分配盒的水分配模型,提出了立管和浮球2种围堰分配盒概念,通过计算确定了关键参数,并在水分配试验台架上完成了试验验证.结果表明:在特征雷诺数约220时,立管分配盒使水膜覆盖率提高了4.9%,浮球分配盒使水膜覆盖率提高了3.8%;在特征雷诺数约130时,立管分配盒使水膜覆盖率提高了3.1%,浮球分配盒使水膜覆盖率提高了5.3%;2种设计方案均能有效降低收集水箱液位的均方差,提高小体积流量下的覆盖率.Taking the cooling water flow in a weir distribution box as an object of study, a water distribution model was set up for two kinds of weir distribution box, namely riser box and float box, of which the key parameters were determined through necessary calculations, and subsequently verification experiments were conducted on a water distribution test bench. Results show that when the Reynolds number is around 220, the coverage rate of water film would be increased by 4.9% and 3.8% respectively via riser box and float box, and when the Reynolds number is around 130, the coverage rate would be increased by 3. 1% and 5.3% accordingly. Both the design schemes can reduce the mean square error of the collection levels and improve the coverage rate of the containment under small flow rates.

关 键 词：非能动安全壳 冷却系统 水分配试验 围堰分配盒 覆盖率 

分 类 号：TL42[核科学技术—核技术及应用]