某余热回收装置的换热管子瞬时热应力分析  

Numerical Analysis of Instantaneous Thermal Stress in Tubes of Waste Heat Recovery Device

作　　者：赵鸿强 赵静 王军 姜家志 ZHAO Hong-qiang;ZHAO Jing;WANG Jun(No.703 Research Institute of CSSC)

机构地区：[1]中国船舶集团有限公司第七〇三研究所

出　　处：《电站系统工程》2024年第5期14-16,共3页Power System Engineering

摘　　要：为降低某余热回收装置的换热管子温度,防止换热管子的壁面温度过高,使用ANSYS软件分析两种空气冷却换热管子工况下管子瞬时温度分布和瞬时热应力分布。结果表明:换热管子的几何条件和材料一定时,热应力取决于换热管子的温度变化速率,温度变化速率越大,热应力越大,温度变化速率越小,热应力越小;换热管子中集箱区域的瞬时热应力最大,管子区域的瞬时热应力最小。To reduce tube temperature of waste heat recovery device and prevent the wall temperature from being too high,ANSYS was used to analyze the instantaneous temperature distribution and thermal stress distribution under two types of air-cooled heat exchange tube conditions.The results show that when the geometric conditions and material are constant,the thermal stress depends on the temperature change rate.The larger the temperature change rate,the greater the thermal stress,the smaller the temperature change rate,and the smaller the thermal stress.The instantaneous thermal stress in the header section of the heat exchange tube is the highest,while the instantaneous thermal stress in the tube section is the lowest.

关 键 词：换热管子 瞬时温度分布 瞬时热应力分布 

分 类 号：TK16[动力工程及工程热物理—热能工程]