热油管道大修期间停输与再启动的数值模拟  

Numerical Simulation of Shutdown and Restarting of Hot Oil Pipeline during Overhauling Period

作　　者：宇波[1] 付在国[2] 李伟[1] 毛珊[1] 

机构地区：[1]中国石油大学城市油气输配技术北京市重点实验室,北京102249 [2]长江大学石油工程学院,湖北荆州434023

出　　处：《科技通报》2011年第6期890-894,共5页Bulletin of Science and Technology

基　　金：教育部新世纪人才计划项目(NCET-07-0843)

摘　　要：基于埋地热油管道在开挖大修期间热力损失较大以及期间可能出现的停输再启动困难等问题,建立了埋地热油管道在开挖大修期间的停输再启动模型,并采用有限容积法对该模型进行数值离散与求解,模拟管道大修期间停输再启动过程中热力参数的变化。参照东北管网铁秦线站间管道防腐层大修期间的工况建立了算例,利用编制的计算程序进行了计算和分析,模拟结果反映了开挖回填阶段停输再启动过程中沿线温度和进站流量的变化规律,为埋地热油管道在大修期间停输再启动的安全实施提供技术支持。In order to solve the problem of great heat loss and difficult restarting up after shutdown of buried hot oil pipelines during overhauling period,mathematical models of shutdown and restarting discreted by the finite volume method was developed to simulate the changing thermal parameters.A numerical example based on the coating overhauling condition of Tie-Qin line in northeast pipe network was simulated and analyzed by the program.The simulation results agree well with the changes of oil temperature and inlet flow during the overhauling period and provide tech support for the safe operation.

关 键 词：热油管道 开挖回填 停输 再启动 数值模拟 

分 类 号：TE832.2[石油与天然气工程—油气储运工程]