摘要
针对感应加热炉磁屏蔽环异常发热问题,以30 t坩埚型感应加热炉为对象,采用COMSOL有限元分析软件计算并通过试验验证了带磁屏蔽环感应加热炉的磁感应强度和磁屏蔽环的温度场分布规律。结果表明,通过调节磁屏蔽环与加热线圈的间距可以抑制磁屏蔽环的异常发热;增加磁屏蔽环的横截面积,可以降低其发热温度。通过数值模拟结果对比得到了优化方案:磁屏蔽环与加热线圈的间距为480 mm,磁屏蔽环横截面积为1000 mm^(2)。现场测量结果表明,磁屏蔽环设计优化后漏磁场的磁感应强度由20.21 mT减小到19.54 mT,且温度由338℃降低到267℃,在保证屏蔽效果的基础上,抑制了磁屏蔽环的异常发热。
To address the issue of abnormal heating of the magnetic shielding ring in an induction heating furnace,and taking a 30-ton crucible-type induction heating furnace as object of study,the magnetic flux density and temperature field distribution law of the magnetic shielding ring have been calculated by using of COMSOL finite element analysis software and validated through experiments for the induction heating furnace with magnetic shielding ring.The results showed that adjusting the distance between the magnetic shielding ring and the induction heating coil suppressed the abnormal heating of the ring,and increasing the cross-sectional area of the magnetic shielding ring reduced its temperature.An optimized design was derived based on the comparison of numerical simulation results:the distance between the magnetic shielding ring and the induction heating coil was 480 mm,and the cross-sectional area of the ring was 1000 mm2.On-site experimental results demonstrated that after optimization of the magnetic shielding ring design,the magnetic flux density of the magnetic leakage field was reduced from 20.21 mT to 19.54 mT,and the temperature decreased from 338℃to 267℃.This optimization effectively suppressed the abnormal heating of the magnetic shielding ring while ensuring the shielding performance.
作者
姬军鹏
张宁
路景杰
张志刚
常宏
JI Jun-peng;ZHANG Ning;LU Jing-jie;ZHANG Zhi-gang;CHANG Hong(School of Electrical Engineering,Xi′an University of Technology,Xi′an 710048,Shaanxi,China;Shanghai Zhaoli Electric Furnace Equipment Co.,Ltd.,Shanghai 201607,China;Xi′an Polaris-Etek Co.,Ltd.,Xi′an 710399,Shaanxi,China)
出处
《铸造》
2025年第4期529-536,共8页
Foundry
基金
2024年西安市科技计划科学家+工程师队伍建设项目(24KGDW0051)
2023年度陕西省教育厅科学研究计划服务地方专项政企联合资助项目(23JE032)
2023年碑林区应用技术研发储备工程项目(GX2341,GX2344,GX2343)。
关键词
感应加热
数值模拟
磁场屏蔽
系统优化
温度场
induction heating
numerical simulation
magnetic field shielding
system optimization
temperature field(
