【摘要】 文章根据热油管道停输后油品和管道周围土壤热力工况变化情况,提出了传热定解问题,并对其进行了一定的数学求解,得出了管道中各截面油品温度沿径向及随时间变化的解析解。该方法为更合理地确定管道在不同季节的安全传输时间提供了计算依据。更多还原

【Abstract】 Based on the varied thermal condition of oil product and soil around the pipeline after shutdown of heated oil pipeline, the article raises an equation for heat transfer and some mathematical solutions have been found for it. Thus, it obtains the analytic solutions for various tempreture profile of oil product along pipeline with variation of time. Such method provides the basis of calculation for determining the safe shutdown period of pipeline in different seasons in a more reasonable way.更多还原