222nm准分子光源系统的封闭式循环散热  

Closed-loop Heat Dissipation for 222 nm Excimer Light Source System

作　　者：刘杰 王佳琦 韩秋漪 张善端 LIU Jie;WANG Jiaqi;HAN Qiuyi;ZHANG Shanduan(Institute for Electric Light Sources,Fudan University,Shanghai 200438,China)

机构地区：[1]复旦大学电光源研究所,上海200438

出　　处：《照明工程学报》2023年第6期114-121,138,共9页China Illuminating Engineering Journal

基　　金：国家自然科学基金项目(项目编号:11505031)。

摘　　要：峰值波长222nm的KrCl准分子灯因可用于人机共存的杀菌应用场景,近年引起了广泛的关注。但准分子灯的外电极高压在工作时会产生臭氧,在室内环境下如臭氧浓度过高,对人体有害。封闭式准分子灯具能够将臭氧与外界环境隔绝,但又降低了灯具的散热效果,从而降低了辐射效率,并影响光源的寿命。本文设计制作了一种封闭式循环散热灯具结构。仿真计算和实验测量结果表明,与封闭式自然散热灯具相比,封闭式循环散热灯具结构能够使灯管的外管壁温度从256℃降至158℃、内管壁温度从285℃降至163℃,降温效果显著,光源的辐照度提高17%以上。The KrCl excimer lamp with a peak wavelength of 222 nm has generated widespread attention in recent years due to its potential applications in human-friendly disinfection scenarios.However,the high voltage of the external electrodes of the excimer lamp can generate ozone during operation,which can be harmful to the human body if the ozone concentration is too high in indoor environments.Enclosed excimer luminaire can isolate ozone from the external environment,but they also reduce the heat dissipation efficiency of the lamp,thereby lowering radiation efficiency and affecting the lifespan of the light source.This paper describes the design and fabrication of a closed-loop heat dissipation system for the lamp structure.Simulation calculation and experimental measurements indicate that,compared to a closed-loop naturally cooled lamp,the closed-loop cooling system can reduce reduce the outer tube wall temperature of the lamp from 256℃ to 158℃ and the inner tube wall temperature from 285℃ to 163℃.The cooling effect is significant,and the irradiance of the light source increases by more than 17%.

关 键 词：紫外辐射 臭氧 热仿真 灯具设计 

分 类 号：TM923[电气工程—电力电子与电力传动]