基于同轴开缝的固体材料微波加热系统探究  

Investigation of a Microwave Heating System for Solid Materials Based on a Coaxial Slot

作　　者：单晓雯 SHAN Xiao-wen(State Key Laboratory of Chemical Safety,SINOPEC Research Institute of Safety Engineering Co.Ltd.,Qingdao 266071,China)

机构地区：[1]中石化安全工程研究院有限公司化学品安全全国重点实验室,山东青岛266071

出　　处：《真空电子技术》2025年第2期59-63,70,共6页Vacuum Electronics

摘　　要：微波加热固体物料时,存在加热效率低、加热不均匀、加热对象受限和“热失控”等问题。为解决上述问题,设计了一种基于同轴开缝辐射器的新型微波加热系统。通过建立一种基于电磁学、固体传热的多物理场耦合模型,对该系统进行了探究和实验验证,结果表明,该系统的微波能量利用率在90%以上,物料整体最大温差小于10℃,实现了对固体物料的高效率以及高均匀性加热,为微波能的工业应用提供了一种可行性方案。Microwave heating of solid materials often faces challenges including low heating efficiency,non-uniform heating,restricted heating range,and the risk of“thermal runaway”.To tackle these challenges,a novel microwave heating system utilizing a coaxial slotted radiator is designed.Through the development of a comprehensive multi-physics coupling model incorporating electromagnetics and solid heat transfer,an in-depth analysis of the system is conducted.The results demonstrate a microwave energy utilization rate above 90%,with an overall maximum temperature variation within solid materials below 10℃,thereby achieving efficient and uniform heating.The research provides a feasible solution for the industrial application of microwave energy.

关 键 词：同轴开缝 微波加热 多物理场耦合 高效率加热 均匀性 

分 类 号：TN015[电子电信—物理电子学] TM924.76[电气工程—电力电子与电力传动]