【摘要】 目前光纤激光器主要的散热方式为风冷和水冷，风冷散热效率低、水冷装备笨重，为了满足应急救援激光破拆户外的使用需求，采用相变直冷的方法对热模块进行设计，利用CFD数值仿真方法对比了垂直和平行两种不同的布局方式，分析两种布局方式对通过冷凝器的风量的影响，并通过实验验证整体散热效果得出能够满足要求的布局设计。该设计长宽高为400 mm×450 mm×450 mm,热模块质量约为13 kg,热模块散热功重比大于200 W/kg,在25℃下系统COP达到3.71。通过实验验证该系统及其布局方式可以满足在40℃下连续稳定工作且冷板和泵浦源表面温度在25±1℃的要求。更多还原

【Abstract】 At present, the main heat dissipation methods for fiber lasers are air cooling and water cooling. Air cooling has low heat dissipation efficiency and water cooling equipment is bulky. In order to meet the outdoor use needs of emergency rescue laser dismantling, it adopts phase change direct cooling method to design the thermal module. CFD numerical simulation method is used to compare two different layout methods, vertical and parallel, analyze the influence of the two layout methods on the air flow through the condenser, and experimentally verify the overall heat dissipation effect to obtain a layout design that can meet the requirements. The design measures 400 mm in length, 450 mm in width, and 450 mm in height. The thermal module weighs approximately 13 kg and has a heat dissipation power to weight ratio greater than 200 W/kg. The system COP reaches 3.71 at 25 ℃. Through experimental verification, the system and its layout can meet the requirements of continuous and stable operation at 40 ℃, and the surface temperature of the cold plate and pump source is 25±1 ℃.更多还原