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[1]李龙冬,王柏盛,李小龙,等.长输天然气管道干线放空方法选择[J].油气储运,2021,40(01):71-77.[doi:10.6047/j.issn.1000-8241.2021.01.012]
　LI Longdong,WANG Baisheng,LI Xiaolong,et al.Selection of venting method for long-distance natural gas pipeline[J].Oil & Gas Storage and Transportation,2021,40(01):71-77.[doi:10.6047/j.issn.1000-8241.2021.01.012]
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长输天然气管道干线放空方法选择

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 40 期数: 2021年01期 页码: 71-77 栏目: 出版日期: 2021-01-30
Title:

Selection of venting method for long-distance natural gas pipeline

文章编号:
1000-8241（2021）01-0071-07
作者:

李龙冬; 王柏盛; 李小龙; 郭靖

国家管网集团西部管道有限责任公司

Author(s):

LI Longdong;  WANG Baisheng;  LI Xiaolong;  GUO Jing

Pipe China West Pipeline Company

关键词:

输气管道; 放空; 降压; 阶梯式

Keywords:

gas pipeline;  venting;  pressure reduction;  stepwise

分类号:
TE832
DOI:
10.6047/j.issn.1000-8241.2021.01.012
文献标志码:
A
摘要:

长输天然气管道在生产运行过程中由于改造或检修作业的需求，对干线管道进行放空是其服 役期间的重要环节。通过对比国内外输气管道的3 种放空降压方式，并经过西气东输二线、三线管 网集中动火工艺处置实践的验证，总结了一种利用输气管道压缩机进行多管段连续降压后放空的阶 梯式降压方法。实践证明：与传统直接放空方法或外接压缩机降压放空方法相比，阶梯式降压法能 够大幅减少天然气放空损耗量和缩短放空时间，降低放空噪音对周边生产、经济活动的影响，具有高 效、经济、安全、环保的特点，特别适用于长距离输气管道多管段连续集中检修作业时的降压放空操 作。（图9，表4，参20）

Abstract:

As required for the reconstruction or maintenance of long-distance gas pipeline during its operation, it is an important link to vent the main pipeline for reconstruction, maintenance and repair during its service life. Through the comparison of the 3 depressurization methods of gas pipeline home and abroad by venting, as well as the verification by the practice of centralized hot processing of Lines 2 and 3 of West-to-East Gas Pipeline Project, a venting method through continuous depressurization of multiple pipeline sections with a compressor specialized for gas pipeline was put forward. As shown in the practice, the stepwise depressurization method, compared with the traditional direct venting method and the venting method by depressurization with an external compressor, can greatly reduce the gas loss, the venting time and the effect of venting noise to surrounding production and economic activities. Additionally, the method, characterized by high-efficiency, economy, safety and environment protection, is particularly applicable to the long-distance gas pipeline with continuous and central maintenance required for multiple sections. (9 Figures, 4 Tables, 20 References)

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备注/Memo

作者简介：李龙冬，男，1985 年生，工程师，2008 年毕业于中国石 油大学（北京）油气储运工程专业，现主要从事输油气调度运行管理 工作。地址：新疆乌鲁木齐市高新区天津北路西五巷99# 中油大厦， 830011。电话：18799176310。Email：404726939@qq.com

更新日期/Last Update: 2021-01-30