西南石油大学学报(自然科学版) ›› 1989, Vol. 11 ›› Issue (2): 65-85.DOI: 10.3863/j.issn.1000-2634.1989.02.08

• 论文 • 上一篇    下一篇

复杂环形输气管网内的瞬变流

曾自强 汪玉春 郑秀中

  

  1. (石油机械系)
  • 收稿日期:1988-05-10 修回日期:1900-01-01 出版日期:1989-04-20 发布日期:1989-04-20

TRANSIENT FLOW IN COMPLEX GAS LOOP PIPELINE NETWORKS

Zeng Zi-qiang Wang Yu-chun Zheng Xiu-zhog
  

  1. (Dept. of Mechanical Engineering Dept. of Basic Courses)
  • Received:1988-05-10 Revised:1900-01-01 Online:1989-04-20 Published:1989-04-20

摘要:

本文依据复杂管道内气体不稳定流动(瞬变流)的概括性方程,结合生产实际条件,首先提出单环管网和双环并联管网的数学模型,应用拉普拉斯变换方法,经过一系列的数学演葬过程,最后得出描述环形愉气管网内气体瞬变流的规律之数学表达式,为了得到实际上的应用,再将这些数学表达式进行一系列运井,转变成易于用计算机进行计葬的公式,然后编制出计算程序,最后给出实例,打印出计算结果;并绘制了管网内压力随时间和管长的变化曲线。


关键词: 输气管网, 数学模型

Abstract:

On the basis of the generalized equation of unsteady flow(transient flow) in complex natural-gas pipelines,combined with the real conditions, this paper presents the mathematical models of gas transient flow in single loop pipeline networks and two-loop in parallel pipeline networks,and then applies the method of Laplace Transform, and after making a series of mathematical calculations, derives the formulas describing the laws of gas transient flow in gas loop pipeline networks, In order to make it possible to apply the formulas to production practice, computer programs are by compiled. Finally,real examples and their calculation results are given,which the pressure curves depending on pipe-length and time are drawn.

Key words: Fluid flow equation, Unsteady flow, Gas pipeline network