摘要
在先进压水堆核电站的设计中将蒸汽发生器和主泵直接连接,取消了蒸汽发生器和主泵之间过渡段,并在蒸汽发生器下封头出口腔室设置了改进的出口挡板,使蒸汽发生器出口接管的流场变得十分复杂。因此对蒸汽发生器下封头/主泵连接处的流动特性进行了试验研究,进行了无挡板的风洞试验和有档板的水回路试验。研究表明采用自行设计的出口挡板可以消除出口接管的轴向回流,使出口流场均匀。
In APWR reactor coolant pump is both directly attached to steam generator channel head and elbow is eliminated. And nozzle dams are mounted on steam generator channel head outlet chamber. So the flow vector within steam generator channel head outlet nozzle is quite complex. Flow characteristics experimental study within connection between steam generator channel head and pump suction has been done by air test without nozzle dams and water loop test with them respectively. It is shown that axial vortex is eliminated and velocity is uniform in outlet section of outlet nozzle of steam generator channel head.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2002年第A02期38-42,共5页
Nuclear Power Engineering
基金
"九五"先进压水堆关键技术项目<蒸汽发生器下封头/主泵连接处流动特性整体试验研究>
计划编号:H592201
