Study on Influence of Temperature on the Water/Oil Separation
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摘要: 为了获取温度对油水分离动态特性的影响规律, 考虑了油水汽三相流、水滴蒸发相变等因素, 建立了滤油机的油水分离流场的RSM数学物理模型以及水滴运动蒸发的相变方程;获得了不同温度对油水分离过程中的油水汽三相体积分数分布情况及其对轴向脱水率的影响规律。结果表明在不同温度情况下油水汽三相流的动态特性较为复杂, 温度对油水分离的脱水效率的影响较为显著, 为深入研究滤油机的油水分离机理奠定了前期基础。Abstract: In order to obtain the influence law of temperature on the dynamic characteristics of water/ oil separation process, a Reynolds Stress Model(RSM) of the water/ oil separation flow field in Vacuum oil purifier and the phase transition equations of water droplets evaporation are established by considering factors such as the water/oil/vapor three-phase flow, water droplets evaporation phase transition etc. The influences of different temperature on oil/ water/vapor three-phase volume fraction distribution in the water/oil separation process and the axial dehydration rate are obtained. The results show that the dynamic characteristics of the oil/water/vapor three-phase flow in different temperatures is rather complex, and the influence of temperature on the efficiency of dehydration of the water/oil separation is significant, and the present study provides a theoretical foundation for the further research of the water/oil separation mechanism of the vacuum oil purifier.
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Key words:
- boundary conditions /
- dehydration /
- drops /
- efficiency
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