基于ANSYS软件的热油管路保温的数值模拟

摘要

Through the numerical simulation of radial temperature of buried hot oil pipelines with ANSYS software, effect of the thermal insulation layer thickness on the radial temperature and heat flow were analyzed and calculated. Change of the radial temperature of different wax layers was analyzed. The results show that along with the increase of the insulation layer thickness, the reducing of temperature in the thermal insulation layer is slow and the heat flux that transfers between pipes and outside reduces gradually, so the heat preservation effect is better; With the increase of the insulation layer thickness, the decline rate of the heat flow is slow. The simulation result of numerical simulation is consistent with theory calculation result, which shows the feasibility and accuracy of ANSYS in heat transfer calculation.%应用ANSYS软件对埋地热油管道沿径向温度进行了数值模拟,得到了不同保温层厚度时管道径向温度及热流量的变化.分析了含蜡层的径向温度变化,随着保温层厚度的增加,保温层内部温降变化减小,管道向外传递的热流密度逐渐减小,保温效果更好.热流量减小的速度随着保温层厚度的增加变得缓慢,模拟结果与编制计算机程序计算结果相吻合.