成品油管道混油动态体积分数判断两段式切割法

发布时间：2018-03-20 09:06

本文选题：成品油管道　切入点：混油切割　出处：《油气储运》2017年10期 　论文类型：期刊论文

【摘要】：在成品油管道顺序输送过程中,相邻批次油品间不可避免会产生混油。目前接收站对混油段的接收常采用固定体积分数三段式切割法,切割体积分数较为保守,造成较大的混油切割量。在此充分利用管输油品质量潜力的稀释作用,提出动态体积分数判断两段式切割法。该方法利用混油接收站场的体积分数分布曲线、管输汽油与柴油间相互掺混的最大体积分数及接收罐可用罐容,计算出第一、第二判断体积分数,以此为满足两段式切割条件的判据,并回归混油体积分数分布曲线公式,从而求出掺入混油量最小的切割体积分数。该切割法实现了短距离成品油管道混油段的两段式切割,能够有效控制油品质量,减少混油切割量,可以适当降低混油处理费用,节省混油罐的建设与使用费用。
[Abstract]:In the process of sequential transportation of finished oil products, it is inevitable to produce mixed oil between adjacent batches of oil products. At present, the receiving station usually adopts the three-stage cutting method of fixed volume fraction for the mixed oil section, and the cutting volume fraction is relatively conservative. In this paper, a two-stage cutting method based on dynamic volume fraction is put forward, in which the volume fraction distribution curve of the mixed oil receiving station field is used to make full use of the dilution effect of the quality potential of the pipeline oil product. The maximum volume fraction of the mixing between pipeline gasoline and diesel oil and the usable tank capacity of the receiving tank are calculated, and the first and second judging volume fraction are calculated, which is taken as the criterion to satisfy the two-stage cutting condition, and the formula of the distribution curve of the volume fraction of the mixed oil is regressed. Thus, the cutting volume fraction with the smallest blending amount is obtained. This cutting method realizes the two-stage cutting of the oil mixing section of the short-distance oil product pipeline, which can effectively control the quality of the oil product, reduce the cutting quantity of the mixed oil, and reduce the treatment cost of the mixed oil. Save the cost of construction and use of mixing tank.
【作者单位】：中国石化抚顺石油化工研究院;
【分类号】：TE832

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