热油管道工艺计算的等长度离散法  

Discrete Method Based on Equal Length Step Increment for Hot Oil Pipeline′s Process Computing

作　　者：许景伟[1] 孟振虎[1] 

机构地区：[1]江苏工业学院江苏省油气储运技术重点实验室,江苏常州213016

出　　处：《江苏工业学院学报》2009年第4期49-52,共4页Journal of Jiangsu Polytechnic University

摘　　要：在热油管道输送的工艺计算中,采用由进出站温度求平均的方法来计算热粘油的其它相关物性参数,如果进出站油温相差较大,则由此方法计算的热粘油物性参数值误差较大。从提高工艺计算的精度上进行考虑,提出了热油管道工艺计算等长度离散的处理方法,按长度分段进行,逐段计算并给出了计算管段的迭代处理过程。通过算例进行了数值模拟,结果表明本文方法正确可靠,计算精度较高。In the hot oil pipeline process calculation,more errors are made in calculation by the entry and exit temperatures averaging method to calculate the other physical parameters of viscous oil.Accordingly,the discrete method based on equal length step increment was outlined to decrease errors easily.The iterative process to get the temperature-drop in each computing step was given accordingly.The analysis results shows that this method has good conformability with practical operation.

关 键 词：热油管道 工艺计算 等长度离散 数值方法 

分 类 号：TE973.1[石油与天然气工程—石油机械设备]