输气管道干空气干燥影响因素研究  

Drying Factors of Dry Air in the Gas Transmission Line

作　　者：付先惠[1] 孟庆华[1] 罗刚强[1] 王孝刚[1] 周怡君[1] 

机构地区：[1]中国石油化工集团公司西南油气分公司工程技术研究院

出　　处：《石油规划设计》2011年第3期21-24,52,共4页Petroleum Planning & Engineering

摘　　要：干燥作为输气管道投产试运行过程中的重要工艺环节,是一个复杂的传热、传质过程。针对输气管道的干燥环节,通过对比,优选出安全高效的干燥法——干空气干燥法。介绍了干空气干燥的工艺原理;建立了机理模型,并编制了应用程序;通过实例对模型进行了验证,并对影响干燥的干空气流量、干空气露点、环境温度、干空气流速及水膜厚度等因素,进行了单因素分析,给出了最优范围值,对干燥方案优化具有一定的参考价值。As an important technical procedure during the trial run for the gas transmission line,drying is a complex heat and mass transfer process.For the drying procedure,the safe and efficient drying method,namely dry air drying method,was selected through comparison.The theory of drying was introduced,the mechanism model was established,and the application program was developed.The accuracy of the model was verified by the actual drying case.The optimal range of values was proposed through single factor analysis on dry air flow rate,dry air dew point,environment temperature,dry air flow velocity,and thickness of water film.It would provide reference for the optimization of the drying process.

关 键 词：输气管道 干空气干燥 机理模型 影响因素 流量 露点 温度 

分 类 号：TE832[石油与天然气工程—油气储运工程]