T型管油水分离特性数值模拟
|
摘要
采用Mixture多相流模型研究T型管内油水两相流动特性,研究了入口含油率、出口分流比、入口速度、支管段长度、主管出口段长度等因素对T型管分离效率的影响.结果表明,支管与主管连接处存在油相聚集及油水分离现象,其中主管油相聚集主要由重力分层导致,而支管油相聚集主要是密度差导致的离心分离.入口位置含油率对T型管的分离效率影响大,随入口含油率增大,T型管的分离效率降低,T型管适用于含油率较低的油水混合物的分离.支管分流比越大,T型管分离效率越高,生产现场可考虑在主管出口段采取节流措施以提高T型管的分离效率.T型管分离效率对支管段及主管出口段长度不敏感,T型管可仅按制造安装要求设计.
The flow field of oil-Water in tee tube by using mixture multiphase model was studied, in addition to study the separation efficiency of tee tube response to the ratio of oil at inlet,the split ratio at outlet, the velocity of inlet, the length of branch tube and the length of main tube. The result show that:oil gathered and separated at the intersection of branch tube and main tube. The reason of oil gathered at main tube was caused by the gravity, and at branch tube, oil gathered phenomenon was mainly due to the centrifugal separation caused by the density difference between oil and water. Oil content at main entrance significant influence on separation efficiency of tee tube, and separation efficiency reduced with the increase of inlet oil content, so tee tube separator suit for separating the oil-water which has low oil content. Study result shows the efficiency would be increased when increased the split ratio, that means that can improve the separation efficiency by mounting throttle at outlet of main tube. The separation efficiency is not sensitive to the length of branch tube and outlet of main tube, so it can be only in accordance with the requirements of the manufacturing and installation in tee tube design process.
The flow field of oil-Water in tee tube by using mixture multiphase model was studied, in addition to study the separation efficiency of tee tube response to the ratio of oil at inlet,the split ratio at outlet, the velocity of inlet, the length of branch tube and the length of main tube. The result show that:oil gathered and separated at the intersection of branch tube and main tube. The reason of oil gathered at main tube was caused by the gravity, and at branch tube, oil gathered phenomenon was mainly due to the centrifugal separation caused by the density difference between oil and water. Oil content at main entrance significant influence on separation efficiency of tee tube, and separation efficiency reduced with the increase of inlet oil content, so tee tube separator suit for separating the oil-water which has low oil content. Study result shows the efficiency would be increased when increased the split ratio, that means that can improve the separation efficiency by mounting throttle at outlet of main tube. The separation efficiency is not sensitive to the length of branch tube and outlet of main tube, so it can be only in accordance with the requirements of the manufacturing and installation in tee tube design process.
引文
[1]苏保卫,王铎,高学理.海上采油水处理技术的研究进展[J].中国给水排水,2009,25(24):23-37.Su B W,Wang D,Gao X L.Research Progress in Treatment Technology of Offshore Oilfield Wastewater[J].China Water and Waste Water,2009,25(24):23-37.
[2]Rea S,Azzopardi B J.The Split of Horizontal Stratified Flow at a Large Diameter T-junction[J].Chem.Eng.Res.Des.,2001,79(4):470-476.
[3]Yang L,Azzopardi B J.Phase Split of Liquid–Liquid Two-phase Flow at a Horizontal T-junction[J].Int.J.Multiphase Flow,2007,33(2):207-216.
[4]杨利民.两相流新型分离器—T形三通管的研究进展[J].化工进展,2008,27(1):45-49.Yang L M.Research Advances in a New Phase Separator of Two-phase Flows—T Junction[J].Chemical Industry and Engineering Progess,2008,27(1):45-49.
[5]丛娟,于昭东,黄辉才,等.T型管油水分离效率的影响因素研究[J].中国给水排水,2013,29(3):74-76.Cong J,Yu Z D,Huang H C,et al.Factor Influencing Oil-Water Separation Efficiency of T-type Tube[J].China Water and Wastewater,2013,29(3):74-76.
[6]杨利民,赵振莹,沈小明,等.新型复合T型管对液液二相流的分离[J].化学工程,2012,40(1):43-47,52.Yang L M,Zhao Z Y,Shen X M,et al.Phase Separation of Liquid-liquid Two-phase Flow by Multi-tube T-junction Separator[J].Chemical Engineering(China),2012,40(1):43-47,52.
[7]蒙伟安,穆塔里夫?阿赫迈德,严荣波.T型管流场混合多相流与欧拉多相流模型的数值研究[J].机械设计与制造,2012,34(2):27-29.Meng W A,Ahmat M,Yan R B.Numerical Research on Flow Field of T-tube by Mix-multiphase Flow Model and Euler-multiphase Flow[J].Machinery Design and Manufacture,2012,34(2):27-29
[8]王来顺,刘丽芳,田文喜,等.T型管内泡状流相分离特性研究[J].核动力工程,2014,35(2):53-57.Wang L S,Liu L F,Tian W X,et al.Research of Phase Separation Phenomenon in Two-phase Bubbly Flow in T-Junction[J].Nuclear Power Engineering,2014,35(2):53-57.
[9]姜凤利,范开峰,王卫强,等.异径T型管道内油气分离过程数值模拟[J].辽宁石油化工大学学报,2011,31(4):52-55.Jiang F L,Fan K F,Wang W Q,et al.Numerical Simulation of Oil-Gas Separation in Tee Pipeline[J].Journal of Liaoning Shihua University,2011,31(4):52-55.
[10]范开峰,王卫强,阿斯汗.水平T型管中油水两相流流动数值模拟研究[J].石油化工高等学校学报,2013,26(5):75-77,82.Fan K F,Wang W Q,Sihan A,et al.The Numerical Simulation Study of Two-phase Oil-Water Flow in Horizontal T-tube[J].Journal of Petrochemical Universities,2013,26(5):75-77,82.
[11]Silva R,Cotas C,Garcia F A P.Particle Distribution Studies in Highly Concentrated Solid-Liquid Flows in Pipe Using the Mixture Model[J].Procedia Engineering,2015,102:1015-1026.
[12]俞接成,陈家庆,王波.液-液分离用水力旋流器内部流场的三维数值模拟[J].石油矿场机械,2007,36(5):9-14.Yu J C,Chen J Q,Wang B.Three Dimensional Numerical Simulation on the Internal Flow Field of Liquid-Liquid Hydrocyclone[J].Oil Field Equipment,2007,36(5):9-14.
[13]王福军.计算流体力学分析CFD软件原理与应用[M].北京:清华大学出版社,2004:87-88.Wang F J.Analysis of Computational Fluid Dynamic-The Principle and Application of CFD Software[M].Beijing:Tsinghua University Publishing House,2004:87-88.
[14]Anderson J D.计算流体力学基础及其应用[M].吴颂平,刘赵淼,译.北京:机械工业出版社,2008:149–189.Anderson J D.Computational Fluid Dynamics and Its Applications[M].Wu S P,Liu Z N.Beijing:China Machine Press,2008:149-189.
[15]魏立新,兰宁,王志成,等.仰角式游离水脱除器分离过程数值模拟[J].科学技术与工程,2009,9(22):6638-6641.Wei L X,Lan N,Wang Z C,et al.Numerical Simulation of Separation Process of Inclined Free Water Seperator[J].Science Technology and Engineering,2009,9(22):6638-6641.
[16]刘苏,苏庆伟,黄坤,等.仰角式油水分离器流场的数值模拟[J].西南石油大学学报(自然科学版),2012,34(6):147-152.Liu S,Su Q W,Huang K,et al.Numerical Simulation of Flow Field of the Inclined Oil-Water Separator[J].Journal of Southwest Petroleum University:Science and Technology Edition,2012,34(6):147-152.
[2]Rea S,Azzopardi B J.The Split of Horizontal Stratified Flow at a Large Diameter T-junction[J].Chem.Eng.Res.Des.,2001,79(4):470-476.
[3]Yang L,Azzopardi B J.Phase Split of Liquid–Liquid Two-phase Flow at a Horizontal T-junction[J].Int.J.Multiphase Flow,2007,33(2):207-216.
[4]杨利民.两相流新型分离器—T形三通管的研究进展[J].化工进展,2008,27(1):45-49.Yang L M.Research Advances in a New Phase Separator of Two-phase Flows—T Junction[J].Chemical Industry and Engineering Progess,2008,27(1):45-49.
[5]丛娟,于昭东,黄辉才,等.T型管油水分离效率的影响因素研究[J].中国给水排水,2013,29(3):74-76.Cong J,Yu Z D,Huang H C,et al.Factor Influencing Oil-Water Separation Efficiency of T-type Tube[J].China Water and Wastewater,2013,29(3):74-76.
[6]杨利民,赵振莹,沈小明,等.新型复合T型管对液液二相流的分离[J].化学工程,2012,40(1):43-47,52.Yang L M,Zhao Z Y,Shen X M,et al.Phase Separation of Liquid-liquid Two-phase Flow by Multi-tube T-junction Separator[J].Chemical Engineering(China),2012,40(1):43-47,52.
[7]蒙伟安,穆塔里夫?阿赫迈德,严荣波.T型管流场混合多相流与欧拉多相流模型的数值研究[J].机械设计与制造,2012,34(2):27-29.Meng W A,Ahmat M,Yan R B.Numerical Research on Flow Field of T-tube by Mix-multiphase Flow Model and Euler-multiphase Flow[J].Machinery Design and Manufacture,2012,34(2):27-29
[8]王来顺,刘丽芳,田文喜,等.T型管内泡状流相分离特性研究[J].核动力工程,2014,35(2):53-57.Wang L S,Liu L F,Tian W X,et al.Research of Phase Separation Phenomenon in Two-phase Bubbly Flow in T-Junction[J].Nuclear Power Engineering,2014,35(2):53-57.
[9]姜凤利,范开峰,王卫强,等.异径T型管道内油气分离过程数值模拟[J].辽宁石油化工大学学报,2011,31(4):52-55.Jiang F L,Fan K F,Wang W Q,et al.Numerical Simulation of Oil-Gas Separation in Tee Pipeline[J].Journal of Liaoning Shihua University,2011,31(4):52-55.
[10]范开峰,王卫强,阿斯汗.水平T型管中油水两相流流动数值模拟研究[J].石油化工高等学校学报,2013,26(5):75-77,82.Fan K F,Wang W Q,Sihan A,et al.The Numerical Simulation Study of Two-phase Oil-Water Flow in Horizontal T-tube[J].Journal of Petrochemical Universities,2013,26(5):75-77,82.
[11]Silva R,Cotas C,Garcia F A P.Particle Distribution Studies in Highly Concentrated Solid-Liquid Flows in Pipe Using the Mixture Model[J].Procedia Engineering,2015,102:1015-1026.
[12]俞接成,陈家庆,王波.液-液分离用水力旋流器内部流场的三维数值模拟[J].石油矿场机械,2007,36(5):9-14.Yu J C,Chen J Q,Wang B.Three Dimensional Numerical Simulation on the Internal Flow Field of Liquid-Liquid Hydrocyclone[J].Oil Field Equipment,2007,36(5):9-14.
[13]王福军.计算流体力学分析CFD软件原理与应用[M].北京:清华大学出版社,2004:87-88.Wang F J.Analysis of Computational Fluid Dynamic-The Principle and Application of CFD Software[M].Beijing:Tsinghua University Publishing House,2004:87-88.
[14]Anderson J D.计算流体力学基础及其应用[M].吴颂平,刘赵淼,译.北京:机械工业出版社,2008:149–189.Anderson J D.Computational Fluid Dynamics and Its Applications[M].Wu S P,Liu Z N.Beijing:China Machine Press,2008:149-189.
[15]魏立新,兰宁,王志成,等.仰角式游离水脱除器分离过程数值模拟[J].科学技术与工程,2009,9(22):6638-6641.Wei L X,Lan N,Wang Z C,et al.Numerical Simulation of Separation Process of Inclined Free Water Seperator[J].Science Technology and Engineering,2009,9(22):6638-6641.
[16]刘苏,苏庆伟,黄坤,等.仰角式油水分离器流场的数值模拟[J].西南石油大学学报(自然科学版),2012,34(6):147-152.Liu S,Su Q W,Huang K,et al.Numerical Simulation of Flow Field of the Inclined Oil-Water Separator[J].Journal of Southwest Petroleum University:Science and Technology Edition,2012,34(6):147-152.