轴向导热对换热管及壳程圆筒壁温影响的理论分析与数值模拟  

THEORETICAL ANALYSIS AND NUMERICAL SIMULATION OF THE EFFECTS OF AXIAL HEAT CONDUCTION ON THE WALL TEM­PERATURE OF HEAT EXCHANGE TUBES AND SHELL CYLINDER

作　　者：聂毅强 Nie Yiqiang(SINOPEC Engineering Incorporation,Beijing,100101)

机构地区：[1]中国石化工程建设有限公司,北京100101

出　　处：《石油化工设备技术》2020年第4期1-7,I0001,共8页Petrochemical Equipment Technology

摘　　要：通过理论分析和数值计算,分析了换热管和壳程圆筒内轴向导热的影响因素、影响大小和影响范围,得到了换热管横截面上平均轴向温度梯度的估值公式、换热管和筒体轴向导热对主体传热影响的公式,为严格的传热实验研究和工程设计提供了依据.Through theoretical analysis and numerical calculation,this paper analyzes the influencing factors,results and scope of the axial heat conduction on heat exchange tubes and shell cylinders.It obtained the formula for estimating the average axial temperature gradient of the cross section of heat exchange tubes and the formula for the effects of the axial heat conduction of heat exchange tubes and cylinder on the heat transfer of the main body.This provides a basis for rigorous heat transfer experimental research and engineering design.

关 键 词：轴向导热 换热管和筒体壁温 传热研究和工程设计 数值计算 

分 类 号：TK172.4[动力工程及工程热物理—热能工程]