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。
During the batch transportation of products pipelines, adjacent batches will inevitably blend with each other. At present, the receiving of contamination plugs at receiving stations is often performed by means of constant-vohtme-fractiou three-section cutting method, whose cutting volume fraction is more conservative, leading to more volume of contamination. In this paper, the cutting judgment method based on dynamic volume fraction was proposed by using the dilution effect of oil product quality potential sufficiently. In this method, the first and second judging volume fraction are calculated by using the volume fraction distribution curve of contamination receiving station, the maximum volume fraction of pipeline gasoline/ diesel mixture, and the effective volume of receiving tank, and they are taken as the criteria of two-section cutting and used to regress the mixing volume fraction distribution curve formula. And accordingly, the cutting volume fraction corresponding to the minimum contamination is obtained. By virtue of this method, the two-section cutting of contamination plug in the short pipeline is realized, the quality of oil products is contrlled effectively, the cutting volume of contamination is reduced, the contamination disposal cost is cut down appropriately, and the building and operating expenses of contamination tanks are saved.
作者
李雪
王晓霖
肖文涛
LI Xue WANG Xiaolin XIAO Wentao(SINOPEC Fushun Research Institute of Petroleum and Petrochemical)
出处
《油气储运》
CAS
北大核心
2017年第10期1149-1153,共5页
Oil & Gas Storage and Transportation
关键词
成品油管道
混油切割
动态体积分数
两段式切割
products pipeline, mixed oil cutting, dynamic volume fraction, two-section cutting
