ESD联锁测试中气液联动执行机构喷油故障处理与预防
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摘要
川气东送各输气站场均设置ESD联锁保护系统,在检维修过程中会定期开展ESD联锁功能测试。输气站场进出站截断阀均配备Shafer气液联动执行机构作为动力驱动,下发ESD命令时进出站截断阀均执行联锁关断,在日常输气站场ESD联锁功能测试过程中进出站气液联动执行机构执行关阀动作时多次出现先导阀泄放口喷油故障现象。针对喷油现象从ESD关阀原理入手,通过对气液联动执行机构行程开关力矩调整、执行器摆缸密封修复、油罐油位不平衡调整以及气质脏污处理消除喷油故障。在预防措施中,提出了通过对ESD联锁测试前进行油位检测、油罐以及执行器摆缸排污操作、滤芯清洗、以及加强日常设备管理等防护措施,提高了气液联动执行机构运行完好率。
The ESD interlocking protection system is set up in all gas stations of Sichuan to East transmission pipeline and its interlocking function test will be carried out regularly during the station inspection and maintenance. The inlet and outlet shut-off valves of gas transmission station are equipped with Shafer gas-liquid linkage actuator as power driver, which could execute interlock shutoff operation while received an ESD command. During the daily test of ESD interlocking function, the oil spout fault of priority valve bleeder often appeared while the gasliquid linkage actuator performing the closing valve action. This paper analyzed the principle of ESD shutoff and eliminated oil spout failure through adjusting the torque of hydraulic linkage actuator travel switch, actuator cylinder seal repairing, uneven oil level adjustment of oil tank and gas smudge disposing. We proposed oil level detection before ESD interlocking test,unloading of tank and actuator cylinder, filter cleaning, and strengthen daily equipment management as preventive measures, which could improve the operation rate of the gas-liquid linkage actuator.
The ESD interlocking protection system is set up in all gas stations of Sichuan to East transmission pipeline and its interlocking function test will be carried out regularly during the station inspection and maintenance. The inlet and outlet shut-off valves of gas transmission station are equipped with Shafer gas-liquid linkage actuator as power driver, which could execute interlock shutoff operation while received an ESD command. During the daily test of ESD interlocking function, the oil spout fault of priority valve bleeder often appeared while the gasliquid linkage actuator performing the closing valve action. This paper analyzed the principle of ESD shutoff and eliminated oil spout failure through adjusting the torque of hydraulic linkage actuator travel switch, actuator cylinder seal repairing, uneven oil level adjustment of oil tank and gas smudge disposing. We proposed oil level detection before ESD interlocking test,unloading of tank and actuator cylinder, filter cleaning, and strengthen daily equipment management as preventive measures, which could improve the operation rate of the gas-liquid linkage actuator.
引文
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[13]任霖钦,陈鹏,任浩渊.浅谈SHAFER气液联动执行机构驱动器密封故障对阀门控制的影响[J].价值工程,2016,35(11):135-137.
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[18]刘建新,王玉尧,朱玉杰.含大量黑色粉末长输天然气管道的内检测前清管实践[J].油气田地面工程,2016,35(3):68-71.
[19]白港生.长输天然气管道内黑色粉末清管工艺[J].化工设备与管道,2010,47(6):67-68.
[20]董绍华,韩忠晨,费凡,等.输油气站场完整性管理与关键技术应用研究[J].天然气工业,2012,33(12):117-122.
[21]税碧垣,艾慕阳,冯庆善.油气站场完整性管理技术思路[J].油气储运,2009,28(7):11-14.
[2]何伏生,刘研,夏明举.ESD紧急停车系统在化工装置中的实现[J].辽宁化工,2010,39(2):219-222.
[3]刘美,张宪举,黄道平.紧急停车系统ESD在加氢裂化装置中的应用[J].自动化仪表,2005,26(5):54-56.
[4]段纯华.紧急停车系统在西气东输管道工程中的应用研究[J].山东化工,2012,41(9):100-101.
[5]中国石油集团工程设计有限责任公司西南分公司.输气管道工程设计规范:GB 50251—2015[S].北京:中国计划出版社,2015:1-2.
[6]吴洪伟.川气东送管道工程线路截断阀执行机构的选型[J].仪器仪表用户,2013,20(2):59-60.
[7]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.
[8]张兵强,黄云,刘愉,等.输气站场干线气液联动执行机构气路改造探讨[J].山东化工,2017,46(4):96-98.
[9]王志辉,杨海英,谭洪伟,等.shafer气液联动执行机构喷油故障分析与防治[J].科技创新导报, 2014, 31(2):38-39.
[10]汪世军.Shafer气液联动阀执行机构功能与维护[J].油气储运,2010,29(4):296-298.
[11]黄晓琳,张兴盛,罗长兵.SHAFER气液联动阀的应用与维护[J].宁夏石油化工,2004,24(4):48-49.
[12]傅文奎,李霖,王尚林,等.天然气管道作业风险管理与预控措施[J].油气储运,2011,30(7):534-535.
[13]任霖钦,陈鹏,任浩渊.浅谈SHAFER气液联动执行机构驱动器密封故障对阀门控制的影响[J].价值工程,2016,35(11):135-137.
[14]朱喜平.气液联动阀的应用与维护[J].油气储运,2004,23(5):53-56.
[15]蒋辉,林媛媛,曹斯亮.天然气超声波计量系统性能的影响因素[J].油气储运,2012,31(1):53-56.
[16]刘润刚,宋华.气液联动阀的维护与保养[J].油气储运,2006,25(5):36-39.
[17]蒲红宇,刘仕鳌,蒋洪.天然气管道清管作业风险分析及应对措施[J].油气储运,2012,31(6):461-462.
[18]刘建新,王玉尧,朱玉杰.含大量黑色粉末长输天然气管道的内检测前清管实践[J].油气田地面工程,2016,35(3):68-71.
[19]白港生.长输天然气管道内黑色粉末清管工艺[J].化工设备与管道,2010,47(6):67-68.
[20]董绍华,韩忠晨,费凡,等.输油气站场完整性管理与关键技术应用研究[J].天然气工业,2012,33(12):117-122.
[21]税碧垣,艾慕阳,冯庆善.油气站场完整性管理技术思路[J].油气储运,2009,28(7):11-14.