|

PDF

Judgment algorithm for false shutoff of block valve in natural gas pipeline

Oil & Gas Storage and Transportation[ISSN:1000-8241/CN:13-1093/TE] Issue: 2021年03期Page: 333-338 Research Field: Publishing date: 2021-03-25
Title:
Judgment algorithm for false shutoff of block valve in natural gas pipeline
Author(s):
YAN Mi

PipeChina West East Gas Pipeline Company

Keywords:
leakage of natural gas pipeline;  leakage detection system;  false shutoff of block valve;  SPS software
CLC:
TE978
DOI:
10.6047/j.issn.1000-8241.2021.03.014
DocumentCode:

A
Abstract:

In order to reduce the frequency of false shutoff of the block valve in a long-distance gas pipeline and improve the reliability of the leakage detection system in a valve chamber, the leakage simulation model of a long-distance gas pipeline was established with SPS simulation software by referring to the theory of gas fluid mechanics based on the analysis on causes of a large number of false shutoff events occurred in valve chambers. With this simulation model, the influence rules of the conditions including the leakage location and operating pressure of a pipeline on the process of pressure drop during the leakage of a long-distance gas pipeline was studied, and on that basis, the process data of the possible maximum pressure drop during the leakage of a pipeline was calculated. Then, a judgment algorithm for false shutoff of block valves in a natural gas pipeline was designed, and a control procedure was developed for shutoff of block valves in a leaked pipeline.The simulation data and experimental results show that with the method, the false shutoff signal and the real leakage signal can be distinguished according to the characteristics of pressure change, and the rate of false shutoff of the system could be reduced. (5 Figures, 28 References)


References

[1] 李玉星，姚光镇. 输气管道设计与管理[M]. 东营：中国石油大学出版社，2009：26-30.
LI Y X, YAO G Z. The design and management of gas transmission pipeline[M]. Dongying: China University of Petroleum Press, 2009: 26-30.
[2] XIAO R, HU Q F, LI J. Leak detection of gas pipelines using acoustic signals based on wavelet transform and Support Vector Machine[J]. Measurement, 2019, 146: 479-489.
[3] HAN B K, LIU X Y, LIU B, BAO H Q, JIANG X G. Study on acoustic source characteristics of gas pipeline leakage[J]. Noise & Vibration Worldwide, 2019, 50(3): 67-77.
[4] 王立坤，王洪超，熊敏，吴家勇，许斌. 长距离输油管道泄漏监测技术分析及研究建议[J]. 油气储运，2014，33（11）：1198-1201.
WANG L K, WANG H C, XIONG M, WU J Y, XU B. Analysis and proposal on leak detection of long-distance oil pipeline[J]. Oil & Gas Storage and Transportation, 2014, 33(11): 1198-1201.
[5] 唐恂，张琳，苏欣，张鹏，李辉. 长输管道泄漏检测技术发展现状[J]. 油气储运，2007，26（7）：11-14.
TANG X, ZHANG L, SU X, ZHANG P, LI H. Technology and development globally in leak detection of pipelines[J]. Oil & Gas Storage and Transportation, 2007, 26(7): 11-14.
[6] 王多才，高鹏，王海峰，彭太翀，田家兴，苍松. 气液联动执行机构意外关断分析及在西气东输的应用[J]. 石油规划设计，2012，23（2）：51-53.
WANG D C, GAO P, WANG H F, PENG T C, TIAN J X, CANG S. Analysis of accidental shutdown of gas-oil actuator and the application in West-East Gas Pipeline[J]. Petroleum Planning & Engineering, 2012, 23(2): 51-53.
[7] 李锴，牛树伟. Lineguard 电控单元失效故障分析及对策[J]. 仪器仪表用户，2012，19（6）：81-83.
LI K, NIU S W. The analysis and countermeasures to failures of LineGuard electronic devices[J]. Electronic Instrumentation Customers, 2012, 19(6): 81-83.
[8] 陈川，尹克江，龚丽，菅秀洋，胡钰杰. 忠武管道气液联动阀故障分析及改进措施[J]. 油气储运，2009，28（9）：33-36.
CHEN C, YIN K J, GONG L, JIAN X Y, HU Y J. Fault analysis of gas-liquid valve and improvement in Zhongxian-Wuhan Gas Transmission Pipeline[J]. Oil & Gas Storage and Transportation, 2009, 28(9): 33-36.
[9] 端木君，段冲，李伟. 对雷电干扰导致西气东输管道线路GOV阀误关断事件研究[J]．石油工程建设，2013，39（4）：55-56.
DUANMU J, DUAN C, LI W. Study and discussion on wrong GOV valve shutoff events due to lightning interference at valve chambers of West to East Gas Pipeline[J]. Petroleum Engineering Construction, 2013, 39(4): 55-56.
[10] 袁金宁，陈黎明，廖福金. Shafer 气液联动执行机构异常关断事故树分析[J]. 油气储运，2013，32(10)：1093-1097.
YUAN J N, CHEN L M, LIAO F J. Fault tree analysis on abnormal shutoff of Shafer pneumatic-hydraulic actuator[J]. Oil & Gas Storage and Transportation, 2013, 32(10): 1093-1097.
[11] 吴家勇，李海娜，王立坤，许斌，王洪超，蔡永军，等. 管道泄漏监测系统的性能评价指标[J]. 油气储运，2017，36（2）：209-213.
WU J Y, LI H N, WANG L K, XU B, WANG H C, CAI Y J, et al. Performance evaluation indices of pipeline leak monitoring systems[J]. Oil & Gas Storage and Transportation, 2017, 36(2): 209-213.
[12] 杨义. 中国石油主干输气管网稳态仿真与优化运行软件开发[D]. 北京：中国石油大学（北京），2007.
YANG Y. Development of simulation and optimization software for steady operation of PetroChina gas pipeline network[D]. Beijing: China University of Petroleum (Beijing), 2007.
[13] 徐嘉爽，邱星栋，李海润，姜鹏. 基于SPS 的长距离输气管道破损压降速率分析[J]. 油气储运，2015，33（3）：5-10．
XU J S，QIU X D，LI H R，JIANG P. Analysis on pressure drop rate of damaged long distance natural gas pipeline based on SPS[J]. Oil & Gas Storage and Transportation, 2015, 33(3): 5-10.
[14] LIU C W, LIAO Y H, LIANG J, CUI Z, LI Y. Quantifying methane release and dispersion estimations for buried natural gas pipeline leakages[J]. Process Safety and Environmental Protection, 2021, 146: 552-563.
[15] 赵竹，董红军，吴琼，徐亮，潘志榆，王立坤，等. 泄漏监测系统应用中的认识误区[J]. 油气储运，2019，38（1）：87-92.
ZHAO Z, DONG H J, WU Q, XU L, PAN Z Y ,WANG L K, et al. Misunderstandings on the application of leakage monitoring systems[J]. Oil & Gas Storage and Transportation, 2019, 38 (1): 87-92.
[16] 王洪超，王立坤，伍晓勇，于雷，吴家勇，富宽，等. 负压波泄漏监测算法改进[J]. 油气储运，2018，37（5）：541-545.
WANG H C, WANG L K, WU X Y, YU L, WU J Y, FU K, et al. The algorithm improvement of pipeline leak detection based on negative pressure wave[J]. Oil & Gas Storage and Transportation, 2018, 37(5): 541-545.
[17] 齐建波，罗丽华，康焯. 西气东输二线线路截断阀压降速率计算分析[J]. 管道技术与设备，2015，31（4）：7-8.
QI J B, LUO L H, KANG Z. Calculation of line block valve pressure drop rate in the Second West to East Gas Transmission[J]. Pipeline Technique and Equipment, 2015, 31(4): 7-8.
[18] 王广辉，张文飞. 干线快速截断阀压降速率设定值的确定方法[J]. 油气储运，2004，23（11）：37-39.
WANG G H, ZHANG W F. The determination method of proper value of pressure drop rate pipe for the fast block valve on pipeline[J]. Oil & Gas Storage and Transportation, 2004, 23(11): 37-39.
[19] 郎宪明，李平，曹江涛，任泓. 长输油气管道泄漏检测与定位技术研究进展[J]. 控制工程，2018，25（4）：621-629.
LANG X M, LI P, CAO J T, REN H. A survey on long distance gas and oil leak detection and location techniques[J]. Control Engineering of China, 2018, 25 (4): 621-629.
[20] 金俊卿，郑云萍. FLUENT 软件在油气储运工程领域的应用[J]. 天然气与石油，2013，31（2）： 27-30．
JIN J Q, ZHENG Y P. Application of FLUENT software in oil and gas storage and transportation engineering design[J]. Natural Gas and Oil, 2015, 31(2): 27-30.
[21] 张宇，靳世久，何静菁，陈世利，李健. 基于动态压力信号的管道泄漏特征提取方法研究[J]. 石油学报，2010，31（2）：338-342.
ZHANG Y, JIN S J, HE J J, CHEN S L, LI J. Extraction method for pipeline leakage feature based on dynamic pressure signal[J]. Acta Petrolei Sinica, 2010, 31(2): 338-342.
[22] UBANOZIE J O, ANTHONY K, MATHEW U, ELUAGU R C, EKWUEME S T. Mathematical approach to determination of the pressure at the point of leak in natural gas pipeline[J]. International Journal of Oil Gas and Coal Engineering, 2020, 8(1): 22-27.
[23] ZHANG Q C, LIU B, QIU Y, ZHANG X. Method of detecting pipeline leakage location based on multiresolution analysis[J]. The Journal of Engineering, 2019, 2019(15): 552-554.
[24] DENG Y, HU H, YU B, SUN D, HOU L, LIANG Y. A method for simulating the release of natural gas from the rupture of high-pressure pipelines in any terrain[J]. Journal of Hazardous Materials, 2018, 342: 418-428.
[25] 油气田及管道建设设计专业标准化委员会. 输气管道工程设计规范：GB 50251—2003[S]. 北京：中国计划出版社，2003：5-19.
Standardization Committee for Construction and Design of Oil and Gas Fields and Pipelines. Code for design of gas transmission pipeline engineering: GB 50251—2003[S]. Beijing: China planning Publishing House, 2003: 5-19.
[26] 中国石油天然气集团公司. 天然气管道工艺运行规程 第1部分：西气东输一线管道：Q/SY 1157.1—2015[S]. 北京：石油工业出版社，2015：20.
China National Petroleum Corporation. Operation regulations for gas pipelines Part 1: West-east gas pipeline: Q/SY 1157.1—2015[S]. Beijing: Petroleum Industry Press, 2015: 20.
[27] 曾亮泉，傅贺平. 天然气进出管道设置截断阀的重要性[J]. 天然气与石油，2005，23（1）：24-28.
ZENG L Q, FU H P. Importance of shut-off valve in natural gas inlet and outlet pipeline[J]. Natural Gas and Oil, 2005, 23(1): 24-28.
[28] 范振宁，梁海宁. 天然气长输管道爆管时线路截断阀关断压降速率的选取[J]. 油气储运，2015，34（4）：422-425.
FAN Z N, LIANG H N. Selection of pressure drop rate of line block valve shutdown when long-distance gas pipeline burst[J]. Oil & Gas Storage and Transportation, 2015, 34(4): 422-425.

Memo

收稿日期：2018-09-05；修回日期：2021-01-27；编辑：王雪莉
基金项目：国家重点研发计划资助项目“油气管道及储运设施安全状态监测与防护技术研究”，2016YFC0802103。
作者简介：严密，男，1989年生，工程师，2011年毕业于西南交通大学自动化专业，现主要从事长输天然气管道自动化系统的运行维护工作。地址：湖北省武汉市洪山区雄楚大道977号国家管网集团西气东输公司科技信息中心916室，430073。电话：021-50950378。Email：yanmi@petrochina.com.cn

Last Update: 2021-03-25