汞光谱灯热结构设计和热分析  

Thermal Structure Design and Thermal Analysis of Mercury Spectral Lamps

作　　者：朱纪扉 杜晨 苏友裕 胡鹏达 邵辉丽 Zhu Jifei;Du Chen;Su Youyu;Hu Pengda;Shao Huili(School of Mathematics,Physics and Statistics,Shanghai University of Engineering Science,Shanghai 201620)

机构地区：[1]上海工程技术大学数理与统计学院,上海201620

出　　处：《河南科技》2020年第8期79-81,共3页Henan Science and Technology

摘　　要：高频无极汞灯是汞离子微波频标系统的重要组成部分,而由于射频加热作用,光谱灯处于过热工作状态,直接影响194.2 nm光谱线的强度和稳定性,最终影响整机输出频率信号性能。因此,光谱灯散热结构设计和热分析是汞离子微波频标的一项重要内容。本设计以铝合金灯罩作为散热基座,试验表明,灯罩能明显改善光谱灯的散热性能,使光谱灯温度接近工作点温度。同时,利用热仿真软件Flotherm对光谱灯进行热力学仿真分析,仿真结果跟试验数据基本吻合。High frequency electrodeless mercury lamp is an important part of the mercury ion microwave frequency standard system, due to the RF heating effect, the spectrum lamp is in an overheating working state, which directly affects the intensity and stability of the 194.2 nm spectral line, and ultimately affects the performance of the output frequency signal of the whole machine. Therefore, the design of the heat dissipation structure and thermal analysis of the spectral lamp is an important content of the mercury ion microwave frequency standard. This design used aluminum alloy lampshade as the heat dissipation base, tests showed that the lampshade could significantly improve the heat dissipation performance of the spectrum lamp, and make the temperature of the spectrum lamp close to the operating point temperature. At the same time, the thermal simulation software Flotherm was used to perform thermodynamic simulation analysis on the spectrum lamp, and the simulation results were basically consistent with the experimental data.

关 键 词：汞光谱灯 散热 热结构 

分 类 号：TM935[电气工程—电力电子与电力传动]