含气率对润滑油黏度的影响
|
摘要
为了研究润滑油黏度随含气率变化的特性,以汽轮机油和氮气作为试验材料制备气油两相流,分别采用称质量法和旋转黏度计测量不同通气流量下两相流的含气率和黏度,并对试验数据进行了回归分析,建立了两相流的黏度计算模型。试验结果表明:油温在30℃条件下,气油两相流的含气率随着通气流量的增大而增大,试验测量所得含气率最大值为2. 557%。气油两相流的黏度随着含气率的增加而增加。
Turbine oil and Nitrogen gas were mixed to produce a gas-oil two-phase flow to study the effect on viscosity of the lubricating oil of the variation of the gas void fraction under different ventilation flow. The gas void fraction and dynamic viscosity of the two-phase flow were measured separately by means of weight variation and rotational viscometer. A numerical model was built to approximate the viscosity of the two-phase flow by regression analysis of experimental data. The results indicate that gas void fraction increases with the increasing flow rate of the gas at 30 ℃ of oil temperature. The maximum gas void fractions measured is 2. 557%. The viscosity of the two-phase flow increases with the increasing of gas void fraction.
Turbine oil and Nitrogen gas were mixed to produce a gas-oil two-phase flow to study the effect on viscosity of the lubricating oil of the variation of the gas void fraction under different ventilation flow. The gas void fraction and dynamic viscosity of the two-phase flow were measured separately by means of weight variation and rotational viscometer. A numerical model was built to approximate the viscosity of the two-phase flow by regression analysis of experimental data. The results indicate that gas void fraction increases with the increasing flow rate of the gas at 30 ℃ of oil temperature. The maximum gas void fractions measured is 2. 557%. The viscosity of the two-phase flow increases with the increasing of gas void fraction.
引文
[1]张艾萍,谢媚娜,林圣强.基于两相流三油楔滑动轴承的油膜特性分析[J].润滑与密封,2015,40(9):47-52.
[2]孟凡明,隆涛,高贵响,等.气穴对滑动轴承摩擦学性能影响的CFD分析[J].重庆大学学报,2013,36(7):6-11.
[3]王志芳.滑动轴承流场及润滑油相关特性研究[D].南京:东南大学,2016.
[4]杨建玺,周浩兵,崔凤奎.液体动静压轴承油腔结构对承载特性的影响[J].河南科技大学学报(自然科学版),2012,33(5):37-40.
[5]HAYWARD A T J.The viscosity of bubbly oil[C]//Fluids Report No.99.Glasgow,UK:National Engineering Laboratory,1961.
[6]ABIVIN P,HNAUT I,ARGILLIER J F,et al.Viscosity behavior of foamy oil:experimental study and modeling[J].Petroleum science and technology,2008,26(13):1545-1558.
[7]安琦,周银生.一种新型气油两相流的流变模型[J].石油学报(石油加工),1996,12(1):67-72.
[8]刚立,徐唯临,邓军,等.含气量对液体粘度的影响[J].科学技术与工程,2004,4(5):394-396.
[9]杨华蕊,王晓力,杜晋芳.考虑剪切速率及温度影响的气油两相流本构方程[J].机械工程学报,2015,51(2):178-182.
[10]王建文,刘俊,安琦.一种基于图像分析的润滑油含气率测量方法[J].机械工程学报,2009,45(6):309-312.
[11]张月皓,董峰,徐聪,等.气液两相流含气率超声测试方法研究[J].仪器仪表学报,2014,35(9):2094-2101.
[12]安琦,周银生,程熊,等.气油二相流含气率标定方法的研究[J].润滑与密封,1995,20(3):27-30.
[13]方立德,李婷婷,李丹,等.新型气液两相流相含率检测装置特性研究[J].中国测试,2017,43(3):121-125.
[14]陈文义,姜楠,王振东.基于子波分析的气液两相流中气含率的测量[J].计量学报,2008,29(1):51-53.
[15]周云龙,尚秋华,范振儒,等.气液两相流容积含气率的图像检测方法[J].热能动力工程,2008,23(5):507-511.
[16]骆方,刘红云,黄崑.SPSS数据统计与分析[M].北京:清华大学出版社,2011.
[17]罗先伟.油气两相流流变特性研究[D].北京:北京理工大学,2016.
[2]孟凡明,隆涛,高贵响,等.气穴对滑动轴承摩擦学性能影响的CFD分析[J].重庆大学学报,2013,36(7):6-11.
[3]王志芳.滑动轴承流场及润滑油相关特性研究[D].南京:东南大学,2016.
[4]杨建玺,周浩兵,崔凤奎.液体动静压轴承油腔结构对承载特性的影响[J].河南科技大学学报(自然科学版),2012,33(5):37-40.
[5]HAYWARD A T J.The viscosity of bubbly oil[C]//Fluids Report No.99.Glasgow,UK:National Engineering Laboratory,1961.
[6]ABIVIN P,HNAUT I,ARGILLIER J F,et al.Viscosity behavior of foamy oil:experimental study and modeling[J].Petroleum science and technology,2008,26(13):1545-1558.
[7]安琦,周银生.一种新型气油两相流的流变模型[J].石油学报(石油加工),1996,12(1):67-72.
[8]刚立,徐唯临,邓军,等.含气量对液体粘度的影响[J].科学技术与工程,2004,4(5):394-396.
[9]杨华蕊,王晓力,杜晋芳.考虑剪切速率及温度影响的气油两相流本构方程[J].机械工程学报,2015,51(2):178-182.
[10]王建文,刘俊,安琦.一种基于图像分析的润滑油含气率测量方法[J].机械工程学报,2009,45(6):309-312.
[11]张月皓,董峰,徐聪,等.气液两相流含气率超声测试方法研究[J].仪器仪表学报,2014,35(9):2094-2101.
[12]安琦,周银生,程熊,等.气油二相流含气率标定方法的研究[J].润滑与密封,1995,20(3):27-30.
[13]方立德,李婷婷,李丹,等.新型气液两相流相含率检测装置特性研究[J].中国测试,2017,43(3):121-125.
[14]陈文义,姜楠,王振东.基于子波分析的气液两相流中气含率的测量[J].计量学报,2008,29(1):51-53.
[15]周云龙,尚秋华,范振儒,等.气液两相流容积含气率的图像检测方法[J].热能动力工程,2008,23(5):507-511.
[16]骆方,刘红云,黄崑.SPSS数据统计与分析[M].北京:清华大学出版社,2011.
[17]罗先伟.油气两相流流变特性研究[D].北京:北京理工大学,2016.