油气管道并行敷设热力影响  

Thermal impact of the parallel laying of oil/gas pipelines

作　　者：王乾坤[1] 宇波[1] 孙长征[1] 石悦 张劲军[1] 魏进家[3] 

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]山西天然气股份有限公司,山西太原030006 [3]西安交通大学动力工程多相流国家重点实验室,陕西西安710049

出　　处：《石油学报》2012年第2期320-326,共7页Acta Petrolei Sinica

基　　金：国家自然科学基金项目(No.50944030;No.50876114和No.10602043);教育部新世纪优秀人才计划(NCET-07-0843)资助

摘　　要：对两条输油管道并行敷设的热力影响规律已有研究,但对输气管道和输油管道并行敷设热力影响情况尚未清楚。采用有限容积和有限差分相结合的数值模拟方法,对工程实际中可能存在的3种典型油气管道并行敷设方式(热油管道与输气管道低温段,冷输油管道或热油管道低温段与输气管道高温段以及热油管道与输气管道高温段并行敷设)的热力影响规律进行了研究。在这3种并行敷设方式下,分析得到了并行敷设的油气管道采用不同管间距时,沿线油温和气温相对于单管敷设的最大温差变化范围和热力分布特征。Thermal impact of the parallel laying of gas and oil pipelines remains unclear though that of two oil pipelines has been relatively well studied.A numerical simulation method combined by finite volume and finite difference was used to investigate the complex heat transfer in three typical parallel laying patterns between gas and oil pipelines： hot oil pipeline with cold gas pipeline;cold oil pipeline with hot gas pipeline and hot oil pipeline with hot gas pipeline.In terms of these three different parallel laying cases,the present paper analyzed characteristics of the maximum differential temperature range and thermal distribution of oil/gas temperatures at different intervals along pipelines relative to the single laying.The numerical simulation results can provide some guidelines for designs and safe operations of the parallel laying of oil/gas pipelines.

关 键 词：并行敷设 热力研究 输油管道 输气管道 数值模拟 

分 类 号：TE732[石油与天然气工程]