第32卷
：第3期
2012年9月
核科学与工程
Nuclear Science and Engineering
Vol.32
No.3 Sep.2012
管束通道内沸腾两相流特性的研究
向文元，吕永红，赵桂生
（中科华核电技术研究院，广东深圳518124）
摘要：以R113为工质，采用高速动态分析仪对垂直管束通道内的沸薄两相流型及其转变特性进行了实验研究。对管束狭窄通道内沸腾两相流型进行划分，并与西管内的两相流型进行比较，在此基确上对通道几何形状及物理参数对管束通道内沸腾两相流型及其转变特性的影响进行分析，为进一步对管束通
道内流型判定、沸腾换热及阻力压降的研究莫定了基础。关键词：管束通道；流动沸腾；两相流；流型转变
中图分类号：TK124
文章标患码：A
文章编号：0258-0918(2012)03-0244-04
Investigation on flow patternsandtransition
characteristics ina tube-bundlechannel XIANG Wen-yuan,LV Yong-hong,ZHAO Gui-sheng
(China Nuclear Power Technology Research Institute, Shenzhen of Guangdong Prov, 518124,China)
Abstract: Tube-bundle channels have been widely used in condenser-evaporator and other industrial heat-exchange equipments, The characteristics of two-phase flow patterns and their transitions for refrigerant R-113 through a vertical tube-bundle channel are experimentally investigated using high-speed camera. Experiments show that there are four main flow patterns in the tube-bundle channel,which are bubbly flow, bubbly-churn flow,churn flow and annular flow. And in the same cross-section of tube bundle channels,it is shown that there might be different flow patterns in different sub-channels.The flow pattern transitions exhibit unsynchronized in different sub-channels. On the basis of experimental research, the flow pattern map is drawn and analyses are made on the comparison of differences between boiling flow patterns in a circular tube and those in a tube-bundle channel.
Key words:tube-bundle channel;flow boiling;two-phaseflow;flow pattern transition
管束通道广泛存在于各种工业换热设备收稿日期：2012-07-20；修回日期：2012-06-08
中，这些通道的沸腾两相流流动与传热特性对
作者简介：向文元(1972一)，男，潮南衡阳人，高级工程师，主要从事核电科学技术与应用研究工作 244