Characteristics on gas-liquid two-phase flow in large inclination upward pipe

doi:10.16085/j.issn.1000-6613.2016-2339

Chemical Industry and Engineering Progress ›› 2017, Vol. 36 ›› Issue (08): 2822-2829.DOI: 10.16085/j.issn.1000-6613.2016-2339

Previous Articles Next Articles

Characteristics on gas-liquid two-phase flow in large inclination upward pipe

WANG Quan^1,2, LI Yuxing^1,2, HU Qihui^1,2, WANG Lin³, LIU Chang⁴

1. College of Pipeline and Civil Engineering in China University of Petroleum, Qingdao 266580, Shandong, China;
2. Shandong Key Laboratory of Oil & Gas Storage and Transportation Safety Engineering, Qingdao 266580, Shandong, China;
3. School of Mechanics and Engineering in Southwest Jiaotong University, Chengdu 610031, Sichuan, China;
4. Beijing Aviation Oil Construction Limited Company, Beijing 100012, China

Received:2016-12-19 Revised:2017-03-15 Online:2017-08-05 Published:2017-08-05

大倾角上倾管气液两相流动特性

王权^1,2, 李玉星^1,2, 胡其会^1,2, 王琳³, 刘昶⁴

1. 中国石油大学(华东)储运与建筑工程学院, 山东青岛 266580;
2. 山东省油气储运安全省级重点实验室, 山东青岛 266580;
3. 西南交通大学力学与工程学院, 四川成都 610031;
4. 北京中航油工程建设有限公司, 北京 100012

通讯作者: 李玉星,教授,博士生导师,主要从事油气水混输工艺技术、输气管道运行模拟仿真技术、天然气水合物技术、深水流动保障技术等方面的研究。
作者简介:王权(1992-),男,硕士研究生,研究方向为气液两相流。E-mail:wangq@s.upc.edu.cn。
基金资助:
国家自然科学基金项目（51404290）。

Abstract

Abstract: Large inclination upward pipe is common in hilly terrain area. In this paper, flow patterns were obtained and gas-liquid two-phase flow pressure fluctuations in the upward pipe were measured using an indoor experiment apparatus. Six flow patterns were observed during the experiment. Both time domain,PDF(probability distribution function),CDF(cumulative distribution function)and PSD(power spectral density)characteristic values of the pressure fluctuation under different superficial gas velocity as well as superficial liquid velocity and angle were obtained. Results showed that,due to the expansion of the gas and the inertia of the slug in the large inclination,the pressure value of the pressure sensing point would be lower than the higher point during the blowout of severe slugging. The characteristics of time domain,PDF,CDF and PSD characteristic values of the pressure fluctuation under different superficial gas velocity,superficial liquid velocity and angle were compared and analyzed,which can be used to identify flow patterns and provide reference for selection of equipment and the security operation of pipelines. Distributions of PDF showed single-peak and dual-peak. The slope,knee,and distribution of CDF were different for different flow patterns. Distributions of PSD showed single-peak,dual-peak,triple-peak,multi-peak and no-peak. The period and the value of pressure fluctuation of severe slugging increase with the angle augmented.

Key words: upward pipe, gas-liquid transportation, flow patterns, pressure fluctuation, PDF, CDF, PSD

摘要： 针对地形起伏区域常见的大倾角上倾管气液两相流动问题，利用室内实验装置进行气液混输实验，对气液两相流的流型、压力波动特性进行了研究。实验中观测到6种流型，得到了不同气液流量和倾角下压力波动的时域值、概率密度函数（PDF）、累积分布函数（CDF）和功率谱密度（PSD）特征。实验结果分析表明：由于气体的膨胀和段塞运动的惯性，严重段塞流气液喷发阶段时，上倾管上部会出现下部压力小于上部压力的现象；得到了不同折算气速、折算液速和倾角的压力信号并进行统计学分析；PDF呈单峰或双峰分布；不同流型的CDF的斜率、拐点和曲线位置不同；PSD图会出现一阶、二阶、三阶和多阶波峰，甚至无波峰分布；在同等气液流量下，随着倾角的增加，严重段塞流的周期和压力波动值增大；结合压力波动特性及对应分析结果可以进行流型识别并对设备的选型以及管道的安全运行提供参考。

关键词: 上倾管, 气液混输, 流型, 压力波动, 概率密度函数, 累积分布函数, 功率谱密度

CLC Number:

O359⁺.1

WANG Quan, LI Yuxing, HU Qihui, WANG Lin, LIU Chang. Characteristics on gas-liquid two-phase flow in large inclination upward pipe[J]. Chemical Industry and Engineering Progress, 2017, 36(08): 2822-2829.

王权, 李玉星, 胡其会, 王琳, 刘昶. 大倾角上倾管气液两相流动特性[J]. 化工进展, 2017, 36(08): 2822-2829.

References

[1] LIN P Y,HANRATTY T J. Detection of slug flow pressure measurements[J]. International Journal of Multiphase Flow,1987,13:13-20.
[2] 何利民,郭烈锦,陈学俊. 水平管道段塞流特征参数的压差波动分析[J]. 工程热物理学报,2002(2):227-230. HE L M,GUO L J,CHEN X J. Investigation on the method for slug velocity measurement of gas-liquid two-phase flow by differential pressure fluctuation signal in horizontal pipeline[J]. Journal of Engineering Thermophysics,2002(2):227-230.
[3] 罗小明,何利民,吕宇玲. 水平管气液两相段塞流的波动特性[J]. 化工学报,2008,59(11):2781-2786. LUO X M,HE L M,LV Y L. Fluctuation characteristics of gas-liquid two-phase slug flow in horizontal pipeline[J]. Journal of Chemical Industry and Engineering(China),2008,59(11):2781-2786.
[4] LUCAS D M,EUGENIO S R. Void fraction and pressure waves in a transient horizontal slug flow[J]. International Journal of Multiphase Flow,2016,84:229-244.
[5] GIANLUCA L,DAVIDE A,SEBASTIANO C,et al. Modelling and statistical analysis of high viscosity oil/air slug flow characteristics in a small diameter horizontal pipe[J]. Chemical Engineering Science,2016,148:190-202.
[6] HUSSAIN H. AL-KAYIEM A O,MOHMMED Z I,et al. Statistical assessment of experimental observation on the slug body length and slug translational velocity in a horizontal pipe[J]. International Journal of Heat and Mass Transfer,2017,105:252-260.
[7] 吕宇玲,何利民,洪启林,等. 水平管中段塞流的发展特性[J]. 工程热物理学报,2008(6):967-970. LV Y L,HE L M,HONG Q L,et al. Evolution of slug flow in horizontal pipes[J]. Journal of Engineering Thermophysics,2008(6):967-970.
[8] SCHMIDT Z,DOTY D R,DUTTA-ROY K. Severe slugging in off-shore pipeline riser-pipe system[J]. Society of Petroleum Engineers Journal,1985,25(1):27-38.
[9] BØE A. Severe slugging characteristics. Part 1:Flow regime for severe slugging. Part 2:Point model simulation study[C]//BHRG. NTH. Trondheim:Norway,1981.
[10] TAITEL Y. Stability of severe slugging[J]. International Journal of Multiphase Flow,1986,12(2):203-217.
[11] MORGADO A O,MiRANDA J M,ARAUJO J D P,et al. Review on vertical gas-liquid slug flow[J]. International Journal of Multiphase Flow,2016,85:348-368.
[12] HAN P F,GUO L J. Numerical simulation of terrain-induced severe slugging coupled by hydrodynamic slugs in a pipeline-riser system[J]. International Journal of Heat and Fluid Flow,2015,56:355-366.
[13] 王玉博,郭烈锦. 海洋集输立管系统严重段塞流转变模型研究[J]. 工程热物理学报,2016(2):324-327. WANG Y B,GUO L J. Research on severe slugging flow transition model in marine pipeline-riser system[J]. Journal of Engineering Thermophysics,2016(2):324-327.
[14] 李乃良,李文升,郭烈锦. 集输-S型立管内气液两相流流型的PSD特征[J]. 工程热物理学报,2012(7):1160-1162. LI N L,LI W S,GUO L J. PSD characteristics of gas-liquid two-phase flow in pipeline S-shaped flexible riser[J]. Journal of Engineering Thermophysics,2012(7):1160-1162.
[15] TIN V,SARSHAR M M. An investigation of severe slugging characteristics in flexible risers[C]//BHRG. 6th int. Conf. Proc.,Cannes France,1993:205-228.
[16] TIN V. Severe slugging in flexible risers[C]//BHRG 5th Int. Conf. Proc.,Cannes France,1991:507-525.
[17] 戴毅,李乃良,崔嵘,等. 柔性立管管径对严重段塞流特性的影响[J]. 化学工程,2011(7):39-42,73. DAI Y,LI N L,CUI R,et al. Effect of flexible riser inside diameter on severe slugging characteristics[J]. Chemical Engineering(China),2011(7):39-42,73.
[18] 高嵩,李巍,尤云祥,等. 气液混输悬链线立管系统两相流特性实验[J]. 力学学报,2012(1):71-81. GAO S,LI W,YOU Y X,et al. Experiment of gas-liquid two-phase flow in catenary riser[J]. Chinese Journal of Theoretical and Applied Mechanics,2012(1):71-81.
[19] MOKHATAB S,TOWLER B F. Severe slugging in flexible risers:review of experimental investigations and OLGA predictions[J]. Petroleum Science and Technology,2007,25(7):867-880.
[20] BEGGS H D. An experimental study of two phase flow in inclined pipes[D]. Tulsa:The University of Tulsa,1972.
[21] PEREZ V H. Gas-liquid two phase flow in inclined pipes[D]. Nottingham:The University of Nottingham,2007.
[22] LIPS S,MEYER J P. Experimental study of convective condensation in an inclined smooth tube[J]. Int. J. Heat Mass Transfer,2012,55:405-412.
[23] OLIVIER S P,MEYER J P,PAEPE M D,et al. The influence of inclination angle on void fraction and heat transfer during condensation inside a smooth tube[J]. International Journal of Multiphase Flow,2016,80:1-14.
[24] WONGWISES S,PIPATHTTAKUL M. Flow pattern,pressure drop and void fraction of gas-liquid two phase flow in an inclined narrow annular channel[J]. Exp. Therm. Fluid Sci.,2006,30:345-354.
[25] BHAGWAT S M,GHAJAR A J. A flow pattern independent drift flux model based void fraction correlation for a wide range of gas-liquid two phase flow[J]. International Journal of Multiphase Flow,2014,59:186-205.
[26] CHOI J,PEREYRA E,SARICA C,et al. An efficient drift flux closure relationship to estimate liquid holdups of gas-liquid two phase flow in pipes[J]. Energies,2012,5:5294-5306.
[27] BHAGWAT S M,GHAJAR A J. Experimental investigation of non-boiling gas-liquid two phase flow in upward inclined pipes[J]. Experimental Thermal and Fluid Science,2016,79:301-318.
[28] 刘昶,李玉星,王琳,等. 海洋立管两相流动及管道振动特性试验研究[J]. 石油机械,2016(4):46-50,56. LIU C,LI Y X,WANG L,et al. Exprimental study on two-phase flow and vibration characteristics of marine riser[J]. China Petroleum Machinery,2016(4):46-50+56.
[29] 何利民,马华伟,罗小明. 严重段塞流周期特性实验研究[J]. 高校化学工程学报,2009(2):223-229. HE L M,MA H W,LUO X M. Experimental study of the period characters of severe slugging[J]. Journal of Chemical Engineering of Chinese Universities,2009(2):223-229.

Characteristics on gas-liquid two-phase flow in large inclination upward pipe

大倾角上倾管气液两相流动特性

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 7

Recommended Articles

Metrics

Comments

[1]	ZHANG Jinya, ZHANG Jiaxiang, SHEN Zongzhao, CHEN Yi. Influence of boundary pressure fluctuation on cavitation and performance of liquid film end face mechanical seal [J]. Chemical Industry and Engineering Progress, 2022, 41(10): 5175-5187.
[2]	Qing YE,Jianxin YANG,Yongjiang LI,Zhiyi YU. Pressure fluctuation analysis of oil-gas two-phase flow inlubricating pipeline [J]. Chemical Industry and Engineering Progress, 2019, 38(08): 3596-3603.
[3]	GU Jiawen, ZHONG Zhaoping, WANG Heng. Flow characteristics of biomass particles and quartz sands in 3D fluidized bed [J]. Chemical Industry and Engineering Progree, 2017, 36(02): 473-480.
[4]	XU Dongfang, HU Jiajing, WANG Lili, ZHU Zhaoyou, WANG Yinglong. Dynamic characteristics of pressure-swing distillation for ethanol-chloroform separation [J]. Chemical Industry and Engineering Progree, 2016, 35(04): 1242-1249.
[5]	TANG Jing，ZHANG Xubin，CAI Wangfeng，CHEN Dan，WANG Fumin. Research progress of liquid-liquid two-phase flow in microchannels [J]. Chemical Industry and Engineering Progree, 2013, 32(08): 1743-1748.
[6]	YU Yanfang1，WANG Feng1，MENG Huibo1，WANG Yanfen2，WANG Wei1，WU Jianhua1. Research progress of the characteristics of instantaneous flow in static mixer with twisted-leaves [J]. Chemical Industry and Engineering Progree, 2013, 32(02): 255-262.
[7]	WU Yuan，ZHOU Yuxin，GUO Jia，YUAN Jun. Features of LIS intensifying processes and development and applications of related technical devices [J]. Chemical Industry and Engineering Progree, 2011, 30(3): 463-.