油气润滑状态下纸机轴承温度场及供气速度的优化  

Paper Machine Bearing's Temperature and Air-Speed Optimization under Air-Oil Lubrication

作　　者：韩功波[1] 张锋[1] 

机构地区：[1]陕西科技大学造纸工程学院,陕西西安710021

出　　处：《黑龙江造纸》2011年第4期40-43,共4页Heilongjiang Pulp & Paper

摘　　要：计算流体力学(CFD)的相关分析与油气润滑技术的结合已经成为研究油气润滑机理的一个重要途径,为了对油气润滑技术在高速纸机干燥部轴承温度场以及供气速度冷却润滑效果进行研究,以CFD理论为基础,对纸机干燥部轴承腔内的温度场和流场进行了数值模拟;通过数值模拟结果的分析,得到了在相同滚子生热条件下,油气润滑能够达稀油润滑同样的降温冷却效果,同时根据在不同的供气速度的条件下轴承内部温度变化与压强的变化,确定了油气润滑供气量的最佳值,证明了油气润滑在高速纸机干燥部上应用的可行性。Combining the air-oil lubrication with CFD has become an effective way to investigate the mechanism of air-oil lubrication. A CFD-based mumerical simulation of air-oil temperature field and flow field was therefore done to investigate the air-oil temperature field and lubrication effect under proper air speed in the bearing cavities of the high-speed paper machine dryer section. The results re- vealed air-oil lubrication can reach the same cooling effect in the oil lubrication under condition that the calorigenic rates of rollers are same, meanwhile determined the best value of air-speed of air-oil lu- brication system by the change of temperature and pressure in bearing cavities under different air speed conditions. It is confirm that the air-oil lubrication is viable in the high-speed paper machine dryer section.

关 键 词：CFD 油气润滑 高速纸机 温度场 供气速度 

分 类 号：TS734[轻工技术与工程—制浆造纸工程]