加热棒束通道丝网传感器两相流探测方法及影响因素研究

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中图分类号：TL352 文献标志码：A 文章编号：1000-582X（2025）07-075-10

Study on two-phase flow detection method and influencing factors of wire mesh sensor in heating rod bundle channel

ZHOU Yang， ZHOU Wenxiong，TAN Xubin，PAN Liangming （a.KeyLoratoryofLow-grade Energy Utilization Technology and System，MinistryofEducation;b.Schoolof Energy and Power Engineering，Chongqing University，Chongqing 40oo44， P.R.China）

Abstract：The analysis of gas-liquid two-phase characteristics in heating rod bundle channels is critical for ensuring the safe operation of nuclearreactors.While experimental methods are commonly usedto investigate twophase flow in rod bundle channels， wire mesh sensors are typically applied under room temperature conditions and have seen limited use in electrically heated rod bundle experiments.This study employs the electrostatic field method in finite element simulation software toanalyze the influenceof electric fieldinelectrically heatedrod bundle channels on wire mesh sensor measurements.The simulation results are verified by experiments.Both the simulationandexperimentalresultsshow that，withinachargedrod bundlechannel，an increase intheexcitation voltage applied to the transmiting electrode enhances the sensor’s sensitivity to gas-liquid two-phase flow，thereby improving its detection capability. Imaging experiments conducted under a 20V excitation voltage confirm the feasibility and effectiveness of wire mesh sensor measurements under such conditions.

Keywords： rod bundle; two phase flow;wire mesh sensor; finite element method

棒束通道是传统反应堆（如压水堆）堆芯的基本结构，其运行过程中通过对流换热的方式带走燃料棒束中产生的热量。（剩余8779字）