起伏管道中成品油携杂质的流动状态

发布时间：2018-06-22 07:38

本文选题：油携杂质 + 固液两相流　；参考：《油气储运》2017年05期

【摘要】：针对成品油管道中存在的油携杂质流动问题,建立了成品油携水携杂质试验环道装置,研究了油携杂质的流动状态,并进行了油携水类比试验;采用大涡模拟方法对油相流场进行仿真模拟,分析了流场对杂质运动的影响。研究表明:油携杂质固液两相流型可分为颗粒流、移动床流及固定床流3种;颗粒加入量越少,油品流速越高,流型由移动床流向颗粒流的转换越快;杂质沉积点位于上倾段后的高点位置,此处管道下侧壁面边界层增厚,油流曳力减弱,二次流有利于杂质聚集;杂质是否在杂质沉积点沉积与油品流速有关,与颗粒加入量无关;类似于杂质颗粒,小体积水团也会在杂质沉积点沉积。研究结果为成品油管道的安全输送提供了保障。
[Abstract]:Aiming at the problem of oil-carrying impurity flow in finished oil pipeline, an oil-carrying impurity carrying test loop device was established, the flow state of oil-carrying impurity was studied, and the oil-carrying water analogy test was carried out. The large eddy simulation method is used to simulate the oil phase flow field, and the influence of the flow field on the impurity motion is analyzed. The results show that there are three types of solid-liquid two-phase flow patterns: particle flow, moving bed flow and fixed bed flow, and the higher the flow rate of oil product is, the faster the flow pattern changes from moving bed to particle flow. The impurity deposition point is located at the high point behind the updip section, where the lower wall boundary layer of the pipeline is thickened, the drag force of the oil flow is weakened, the secondary flow is favorable to the accumulation of impurity, and whether the impurity deposition at the impurity deposition point is related to the flow rate of the oil, Similar to impurity particles, small water masses are deposited at impurity deposition points. The results provide a guarantee for the safe transportation of finished oil pipeline.
【作者单位】：中石化石油工程设计有限公司;山东省油气储运安全省级重点实验室;山东莱克工程设计有限公司;
【基金】：中国石油科技创新基金资助项目“杂质沉积对成品油管线运行可靠性影响机制研究”,2014D-5006-0604 中国石油化工股份有限公司科研项目“油库加油加气站设备及安全设施实验平台研发”,314013 中央高校基本科研业务费专项基金“成品油管道油携杂质流动特性研究”,14CX06070A
【分类号】：TE832

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