保温层厚度影响传热特性。本文分析了在常导热系数和变导热系数条件下圆柱形管道和球形容器的传热模型,给出了有关计算式,利用MATLAB对传热过程进行了数值模拟,获得了相应情况下的临界热绝缘直径、外表面温度和散热量。丰富了已有文献中关于球体模型的探讨,为工程应用及保温层设计提供参考。 The thickness of the insulation affects the heat transfer characteristics. In this paper, the heat transfer models of cylindrical pipes and spherical vessels under the conditions of constant thermal conductivity and variable thermal conductivity are analyzed. The relevant formulas are given and the heat transfer process is numerically simulated by MATLAB. The critical heat Insulation diameter, outer surface temperature and heat dissipation. Enriched the existing literature on the ball model to explore for engineering applications and insulation design.