石油学报 ›› 1992, Vol. 13 ›› Issue (S1): 149-156.DOI: 10.7623/syxb1992S1018

• 论文 • 上一篇    下一篇

热油管道停输冷却规律研究

李长俊, 曾自强   

  1. 西南石油学院
  • 出版日期:1992-12-25 发布日期:2013-07-08

STUDY ON THE COOLING LAW OF THE HEAT OIL PIPELINES AT SHUTDOWN

Li Changjun, Zeng Ziqiang   

  1. Southwestern Petroleum Institute
  • Online:1992-12-25 Published:2013-07-08

摘要: 考虑在管道的停输过程中,根据油品、管壁、保温层、防腐层、上壤等的非稳定传热方程,并将其物性参数粉为变盘时,采用盒式(Keller)积分法构造出问题的差分方程,由电子计算机进行数值求解,以确定热油管停输后管路任一点、任一时刻的油品温度.最后附有算例.

关键词: 管道, 输油, 停输, 冷却规律

Abstract: It possessses profound practical significance to study the law of the temperature change of oil in pipelines upon shutting down.Based on the unstable differential equadons for heat transmission of oil,pipe-wall,lagging,coatings and soil,in which the parameters related to physical properties are treated as variables during shut-down,the authors establish difference equations of hest transmission by using the method of the cassette integrate(Keller integrate).A numerical solution of the oil temperature on any location of a pipeline at any moment upon shutting down can be obtained by computer.Finally,the examples of calculation are given in this paper.