基于多物理场的电加热装置加热丝结构研究  

Research on Heating Wire Structure of Electric Heating Device Based on Multi-physics Field

作　　者：陈雷[1] 徐涛 付启桐 邢作霞[1] 张鹏 徐健 CHEN Lei;XU Tao;FU Qitong;XING Zuoxia;ZHANG Peng;XU Jian(School of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学电气工程学院,沈阳110870

出　　处：《实验室研究与探索》2023年第1期99-104,共6页Research and Exploration In Laboratory

基　　金：辽宁省兴辽英才计划项目(XLYC2008005)。

摘　　要：采用电-磁-热多场耦合的方法对电加热元件进行研究,提出一种新的U型管状电加热元件。利用数值模拟的方法分析了磁场、电场以及温度场对电热元件的影响,对比了管状和柱状两种加热元件的磁通密度、电场强度和温度分布特点,计算了元件的电磁力、表面负荷,并根据已有柱状加热元件结构和装置对数值模拟结果进行验证进而推断新结构的可行性。研究表明,在相同工况下,管状结构加热元件能够有效减小热量积累,相较柱状加热元件温度能降低25%,同时能减小37%表面负荷,有效提高元件的使用寿命,综合性能良好。The electric heating element is theoretically deduced by the method of electro-magnetic-thermal multi-field coupling,and a new structure of electric heating element is proposed.The influence of magnetic field,electric field and temperature field on the electric heating element is analyzed by numerical simulation,the magnetic density,electric field and temperature distribution characteristics of the two heating elements are compared,and the electromagnetic force and surface load of the element are calculated.The heating element structure and device are verified by numerical simulation results to infer the feasibility of the new structure.The research shows that under the same working conditions,the tubular heating element can effectively reduce the heat accumulation,reduce the temperature of the cylindrical heating element by 25%,reduce the surface load by 37%,improve the service life of the element.It has good comprehensive performance.

关 键 词：固体电制热装置 多物理场耦合 电热元件 加热丝设计 

分 类 号：TK37[动力工程及工程热物理—热能工程]