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[1]郭祎,张道全,刘鹏,等.西部成品油管道末站混油切割改进措施[J].油气储运,2011,30(07):520-522.[doi:10.6047/j.issn.1000-8241.2011.07.011]
　Guo Yi,Zhang Daoquan,Liu Peng,et al.Improvement of mixed oil cutting of Western Oil Product Pipeline Terminal[J].Oil & Gas Storage and Transportation,2011,30(07):520-522.[doi:10.6047/j.issn.1000-8241.2011.07.011]

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西部成品油管道末站混油切割改进措施

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 30 期数: 2011年07期页码: 520-522 栏目: 出版日期: 2011-07-25

Title:: Improvement of mixed oil cutting of Western Oil Product Pipeline Terminal

文章编号:: 1000-8241(2011)07-0520-03

作者:: 郭祎; 张道全; 刘鹏; 沈亮; 丁俊刚; 中国石油北京油气调控中心，北京 100007

Author(s):: Guo Yi; Zhang Daoquan; Liu Peng; et al; Guo Yi：PetroChina Oil & Gas Pipeline Control Center，Beijing，100007.

关键词:: 成品油管道; 混油切割; 混油量; 切割比例; 密度偏差; 切换模式

Keywords:: oil product pipeline; mixed oil cutting; mixed oil volume; cutting proportion; density deviation; switching mode

分类号:: TE832

DOI:: 10.6047/j.issn.1000-8241.2011.07.011

文献标志码:: A

摘要:: 西部成品油管道兰州末站混油切割是提高管道运营效益、保证下游油品质量的关键运行管理环节，2009年以来的柴油-汽油混油切割数据表明，末站混油切割量呈明显上升趋势。从3个方面进行分析：首先，末站混油切割最大的难点在于后行油品密度值的确定，混油切割量关键在于第二切割点油品密度值的控制，但是后行油品的准确密度值往往很难获得；其次，兰州末站和新堡站关于混油界面密度差值的规律不再适用，导致单次混油量迅速上升；最后，首站外输罐的油品常常“边进边出”，且进出油品分别来自不同炼厂，导致初始混油界面前后段纯油密度不稳定、界面不清晰。采取改进切割比例、修正密度偏差、改变首站油品切换模式等措施解决上述问题，有效降低了混油切割量，取得了良好的经济效益。

Abstract:: Mixed oil cutting in Lanzhou terminal of Western Oil Product Pipeline is a key link to enhance the pipeline operation benefits and ensure the quality of downstream oil product. As shown by statistics of mixed diesel oil and gasoline cutting since 2009，the volume of mixed oil cutting in the Terminal has presented a clearly rising trend，therefore，an analyzed on it from three aspects was carried out as follows：（1）the most indistinct problem in mixed oil cutting of the terminal was the density value confirmation for trailing oil product，the cut volume of mixed oil was dependent on the control of density value of oil product at the second cutting point；however，it is difficult to confirm the precise density value of trailing oil product；（2）the standards adopted in determining the differential density value of mixed oil interface for Lanzhou Terminal and Xinbao Station was not be applicable，which rapidly resulted in the raising of one-turn mixed oil volume and（3）oil products stored in outlet tank of the Initial Station was usually in the case of “simultaneous inlet flow and outlet flow”，and moreover the oil products were from different refineries，which caused unstable intensity for the front/back sections of pure oil for the initial mixed oil interface with an unclear interface. Measures of improving cutting proportion，correcting density deviation and changing switching mode of oil products in the Initial Station were presented to correct the aforesaid matters in order to effectively reduce cutting volume of mixed oil and achieve excellent economic benefits.

参考文献/References:

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备注/Memo

作者简介：郭祎，工程师，1978年生，2000年毕业于合肥工业大学微电子技术专业，现主要从事成品油长输管道的运行调度工作。
电话：13911882902；Email：yiguo@petrochina.com.cn??（收稿日期：2011-02-11）

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