含气塞管道充水排气模拟试验环路系统
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摘要
起伏管道在充水排气过程中极易出现气塞现象,针对目前气塞形成及演变特性研究缺乏、气液两相耦合流动机理不明确等问题,设计并建造了一套可大范围调节管路倾角范围(0°～30°)的含气塞管道充水排气模拟试验环路系统,包括供水系统、测试管路系统、倾角调节系统、排水系统、摄像系统和数采系统。试验结果表明,该系统可用于研究起伏管道充水排气过程中管内气塞形成和发展过程中的气液两相流动特性。
Air-lock-entrapped phenomenon is easy to occur in the process of water filling and air exhaustion of the undulating pipeline. A test loop system for the simulation of the entrapped air movement with a wide range of inclination angle( 0° ～ 30°) was designed and constructed in view of the lack of research on formation and evolution characteristics of air-lock and the unclear flow mechanism of gas-liquid two-phase coupling. The test system includes a water supply subsystem,a test piping subsystem,an inclination-angle adjustment subsystem,a drainage subsystem,a camera subsystem and a data measurement and acquisition subsystem. The test results on the loop show that it can be used for in-depth study of gas-liquid two-phase flow characteristics during the formation and development of the entrapped airlock.
Air-lock-entrapped phenomenon is easy to occur in the process of water filling and air exhaustion of the undulating pipeline. A test loop system for the simulation of the entrapped air movement with a wide range of inclination angle( 0° ～ 30°) was designed and constructed in view of the lack of research on formation and evolution characteristics of air-lock and the unclear flow mechanism of gas-liquid two-phase coupling. The test system includes a water supply subsystem,a test piping subsystem,an inclination-angle adjustment subsystem,a drainage subsystem,a camera subsystem and a data measurement and acquisition subsystem. The test results on the loop show that it can be used for in-depth study of gas-liquid two-phase flow characteristics during the formation and development of the entrapped airlock.
引文
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[10] Jepson W P. The flow characteristics in horizontal slug flow[C]//In:Proc of 3rd Int. Conf. Multiphase Flow. The Netherlands:[s.n.],1987:187-198.
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[12] Skartlien R,Julshamn J A,Lawrence C J et al. A gas entrainment model for hydraulic jumps in near horizontal pipes[J]. Int J Multiphase Flow,2012,43:39-55.
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[14]张欣雨,谢静,宇波.起伏管道空管投油气液两相流动的数值模拟[J].中国科学院大学学报,2017,34(2):265-272.
[15] Pothof I W M,Clemens F H L R. Experimental study of air-water flow in downward sloping pipes[J]. Int J Multiphase Flow,2011,37(3):278-292.
[16] Bernardo C T,Jose G V. Modeling of water pipeline filling events accounting for air phase interactions[J]. Journal of Hydraulic Engineering,2013,139(9):921-934.
[17]陈金金.混合立管流动控制实验研究[D].北京:中国石油大学(北京),2011.
[2] Chen Y,Gong J,Li X P,et al. Simulation of liquid-gas replacement in commissioning process for large-slope crude oil pipeline[C]//Proceedings of the 9th International Pipeline Conference. Calgary,Canada:[s. n.],2012:175-181.
[3]李晓平,陈伟,王卓军,等.阿布扎比管道投产事故分析[J].油气田地面工程,2016,35(11):6-8,12.
[4]赵广慧,赵洪瑞,魏秦文,等.含气塞管路扫水过程的水力学分析[J].管道技术与设备,2013(6):42-44,54.
[5] Lubbers C L. On gas pockets in wastewater pressure mains and their effect on hydraulic performance[D]. The Netherlands:Delft University of Technology,2007.
[6] Escarameia M. Investigating hydraulic removal of air from water pipelines[C]//Proc Inst Civil Engineers Water Management.[s.l.]:[s. n.],2007:25-34.
[7]罗金恒,杨锋平,马秋荣,等.新建大落差管道试压排水爆管原因分析[J].油气储运,2011,30(6):441-444.
[8] Deng T, Gong J, Li X P. A dynamic simulation study of overpressure for pigging process[C]//Proceedings of the 9th International Pipeline Conference. Calgary,Canada:[s. n.],2012:183-187.
[9]袁文麒,刘遂庆.管道充水工况下气液两相流瞬态数值模拟[J].同济大学学报(自然科学版),2010,38(5):709-715.
[10] Jepson W P. The flow characteristics in horizontal slug flow[C]//In:Proc of 3rd Int. Conf. Multiphase Flow. The Netherlands:[s.n.],1987:187-198.
[11] Chanson H. Air bubble entrainment in free-surface turbulent shear flows[M]. California:Academic Press,1996.
[12] Skartlien R,Julshamn J A,Lawrence C J et al. A gas entrainment model for hydraulic jumps in near horizontal pipes[J]. Int J Multiphase Flow,2012,43:39-55.
[13]郝荣贵.原油管道投产研究[J].化工管理,2014(2):55.
[14]张欣雨,谢静,宇波.起伏管道空管投油气液两相流动的数值模拟[J].中国科学院大学学报,2017,34(2):265-272.
[15] Pothof I W M,Clemens F H L R. Experimental study of air-water flow in downward sloping pipes[J]. Int J Multiphase Flow,2011,37(3):278-292.
[16] Bernardo C T,Jose G V. Modeling of water pipeline filling events accounting for air phase interactions[J]. Journal of Hydraulic Engineering,2013,139(9):921-934.
[17]陈金金.混合立管流动控制实验研究[D].北京:中国石油大学(北京),2011.