基于丝网传感器的5×5棒束通道空泡分布测量研究  

Research on Void Distribution Measurement of 5×5 Rod Bundle Channel Based on Wire Mesh Sensor

作　　者：王颖龙 谢浩 熊进标[1] 杨宜昂 程旭[1] Wang Yinglong;Xie Hao;Xiong Jinbiao;Yang Yiang;Cheng Xu(School of Nuclear Science and Engineering,Shanghai Jiao Tong University,Shanghai,200240,China)

机构地区：[1]上海交通大学核科学与工程学院,上海200240

出　　处：《核动力工程》2022年第1期84-91,共8页Nuclear Power Engineering

基　　金：国家自然科学基金面上项目(52076132)。

摘　　要：为研究压水反应堆燃料组件棒束通道内的两相分布规律,设计并制造了适用于棒束通道的丝网传感器模块,开展了5×5棒束通道内空气-水泡状流的空泡分布测量实验,分析了棒束通道内空泡份额的分布规律及气泡尺寸对空泡分布的影响。实验结果表明,发生横升力方向反转的小气泡在壁面附近聚集、大尺寸气泡则聚集在子通道中心;常温常压下发生横升力方向反转的临界气泡直径在4~6 mm之间,证明了横升力模型在棒束通道中的适用性。In order to study the two-phase distribution in the rod bundle channel,a wire mesh sensor module suitable for the rod bundle channel was designed and fabricated,and the experiment of measuring the void distribution of air-bubble flow in a 5×5 rod bundle channel was carried out.The distribution law of void fraction in rod bundle channel and the effect of bubble size on void distribution are analyzed.The experimental results show that the small bubbles with reversal of transverse lift direction gather near the wall,and the large bubbles gather in the center of the subchannel;The critical bubble diameter of transverse lift direction reversal at room temperature and pressure is between 4~6 mm,which proves the applicability of transverse lift model in rod bundle channel.

关 键 词：棒束通道 丝网传感器 空泡分布 升力模型 

分 类 号：TL334[核科学技术—核技术及应用]