中等功率X射线源的热设计与热仿真  

Thermal Design and Simulation for Medium-power X-ray Source

作　　者：李昊[1] 项名珠[1] 肖建生[1] 

机构地区：[1]公安部第一研究所安检技术事业部,北京102200

出　　处：《机械与电子》2014年第7期27-30,共4页Machinery & Electronics

摘　　要：为了解决中等功率X射线源在长时间工作中,源内电子元件由于温度过高导致工作稳定性下降的问题,通过热力学理论计算,初步确定了射线源的散热方案;运用有限元仿真,使用FloTHERM软件根据实际工况对射线源进行了热仿真计算。经对比可知,热力学理论计算和有限元热仿真对散热方案的选择结果是一致的,通过实际测试证明,散热方案顺利解决了射线源的散热问题。验证了2种热设计方法的可行性,为其他同类设备热设计与热仿真提供了一定的参考。The article was aimed to solve the work stability decline problem of medium power X ray source due to the high temperature of elec-tronic components in the ray source when it worked a long time.The heat dissipation scheme of X ray source was preliminarily determined by thermodynamics theoretical calculation,and then thermal simulation for the X ray source under ac-tual working conditions was done by using Flo-THERM software based on finite element simula-tion.The comparison showed that finite element thermal simulation was consistent with thermody-namics theoretical calculation on heat dissipation scheme selection.The actual test proved that the cooling scheme solved the problem of heat dissipa-tion successfully,and it verified the feasibility of these two thermal design methods,which provided a certain reference of thermal design and simulation for other similar equipment.

关 键 词：热设计 热仿真 X 射线源 Flo-THERM 软件 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]