同沟敷设输油管道热力计算

摘要

To calculate the temperature along double pipelines laid in one ditch easily and accurately, soil temperature field and the temperature along pipelines were studied with analytic caluculation method. A model of soil temperature field around pipelines was established. Conformal mapping method was applied to dispose the model.Analytical expresions of soil temperature field along the radial direction and temperature along the pipeline were drevied. Under certain conditions,the expressions were used to proceed calculation. The result shows that the maximum error is merely 0. 58 ℃ ,showing that the analytical soultion is accurate enough to be used.%为准确便捷地计算同沟敷设输油管道沿线温度,文中对同沟敷设输油管道周围土壤稳态传热温度场与沿线温度解析计算方法进行研究。建立了管道周围土壤稳态传热温度场计算模型,应用保角变换法对模型进行求解,导出了土壤稳态传热温度场与输油管道沿线温度解析表达式。在一定参数条件下应用该解析表达式进行实例计算,并对计算结果进行验证分析,结果显示最大误差仅为0.58℃,表明该解析计算方法能够满足工程需要。