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陈其胜，陈保东，田 娜
（辽宁石油化工大学油气储运工程学院，辽宁抚顺 113001）
摘要：针对原油长输管线在不停输时，由于挖开段的传热系数增大影响到站间的压强，采用分段法在稳定的热力条件下计算不停输原油管道大修时压降，用Ｃ语言编制了计算程序；并举例加以说明，对开挖与不开挖时出站压力相同时的压降进行对比分析；确定不出现凝油事故时的最低出站压力。
关键词：热输原油管道；大修；压降；传热系数；出站压力
Pressure Drop Calculation of Crude Oil NOn-stop Pipeline
CHEN Qi-sheng, CHEN Bao-dong, TIAN Na
(Department of Oil & Gas Storage and Transportation, Liaoning University of Petroleum & Chemical Technology, Fushun 113001, China)
Abstract: A model to calculate the variation of inter-station pressure drop is established when the on-line buried hot crude oil pipeline is repaired with the sectioning method in the condition of thermo-dynamic stability, by making the computer program in C language, and comparing the difference between excavation and no excavation under the same outgoing station pressure by using examples. Thus, a minimum outgoing station pressure is determined.
Key words: hot oil pipeline; major repair; pressure drop; heat transfer coefficient; outgoing station pressure |
