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[1]姜进田,高斌.中乌天然气管道A 线绕行段天然气置换投产[J].油气储运,2011,30(08):614-618.[doi:10.6047/j.issn.1000-8241.2011.08.004]
　Jiang Jintian and Gao Bin.placement commissioning of the A-line modified section of China-Uzbekistan Gas Pipeline[J].Oil & Gas Storage and Transportation,2011,30(08):614-618.[doi:10.6047/j.issn.1000-8241.2011.08.004]

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中乌天然气管道A 线绕行段天然气置换投产

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 30 期数: 2011年08期页码: 614-618 栏目: 出版日期: 2011-08-25

Title:: placement commissioning of the A-line modified section of China-Uzbekistan Gas Pipeline

文章编号:: 1000-8241(2011)08-0614-05

作者:: 姜进田; 高斌; 中国石油管道公司，河北廊坊 065000

Author(s):: Jiang Jintian and Gao Bin; Jiang Jintian：PetroChina Pipeline Company，Langfang，Hebei，065000.

关键词:: 中乌天然气管道; 绕行段; 置换投产; 高压差; 节流; 平压

Keywords:: China-Uzbekistan Gas Pipeline; modified section; displacement commissioning; differences of high pressure; throttling; pressure balance

分类号:: TE821

DOI:: 10.6047/j.issn.1000-8241.2011.08.004

文献标志码:: A

摘要:: 中乌天然气管道A 线绕行段置换投产需最大程度地将临时段管道中的天然气导入A 线绕行段管道。对置换和平压过程进行工艺计算和数据模拟，确定投产初始压力为0.2 MPa，天然气置换流速为5 m/s，管内天然气节流前的温度约12 ℃，节流后的温度将降至约－31 ℃。根据实际置换速率的计算结果、阀后压力的变化以及管道、设备的振动情况，调整手轮总转数以控制流量。通过分析约束条件、上下游允许的最大停输时间、平压作业的最佳时机，论证了将临时段内的天然气导入绕行段的可行性。通过对不同置换方式的工程实施方案进行比选，解决了高压天然气置换过程中高压差节流、置换速率控制的难题，实现了临时停输情况下临时段管道向绕行段管道导入天然气并最终平压的置换投产。

Abstract:: The gas in the temporary section of China-Uzbekistan Gas Pipeline will be furthest imported to the A-line modified section inthe process of displacement commissioning. Through the process calculation and data simulation of displacement and pressurebalancing，several parameters have been determined，for example，the initial pressure of commissioning is 0.2 MPa，and gasflow rate of displacement is at 5 m/s，gas temperature in the pipeline before throttling is approximately at 12℃. And so，thetemperature should drop to －31 ℃ after throttling. Based on the actual calculations result of displacement rate and the pressurechanges of valve back，and the vibration situation of pipeline and equipment，the flowrate has been controlled by adjusting the total revolutions number of hand wheel. The feasibility of importing gas from the temporary section to the modified section has been demonstrated by analyzing various constraints and limitations，maximum allowable shutdown time for upstream anddownstream pipeline，the optimum timing of pressure balancing etc.. Problems in displacement rate control and throttling for ?high-pressure gas pipeline have been solved by comparing the scheme of displacement commissioning. And the displacement commissioning process of importing gas and pressure balancing from the temporary section to the modified section have beenachieved under the condition of temporary shutdown.

参考文献/References:

[1] 杨筱蘅. 油气管道安全工程[1] [M]. 北京：中国石化出版社，2005：174-175，178.
[2]国家经济贸易委员会. SY/T5922－2003 天然气管道运行规范[S]. 北京：石油工业出版社，2003.
[3]李长俊. 天然气管道输送[M]. 北京：石油工业出版社，2000：86-87，90-93，176-181.

备注/Memo

姜进田，高级工程师，1970 年生，1992 年毕业于西南石油学院机械专业，现主要从事天然气管道的运行管理工作。
电话：13811535850；Email：jjt_zy@petrochina.com.cn?（收稿日期：2011-02-24）

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