【作者】 黄绪震；

【导师】 陈建文；

【作者基本信息】 东北大学 ， 机械电子工程， 2009， 硕士

【摘要】 在国内,油雾润滑技术作为一种较先进的润滑方式,已经应用在很多行业,如石化,冶金行业等等。人们更多的关心油雾润滑设备的研究,而对于油雾颗粒在管线内的传输情况尚无人研究,至于油雾颗粒在管线内传输是不是有变化?怎样变化也没有人知道。如果有损失,是什么因素导致油雾颗粒在管线内的损失?如果我们知道了导致颗粒损失的原因,将对我们改进油雾润滑管线是有益的。基于此,进行了本课题的研究。由于油雾颗粒在管线传输情况对于分支管内油雾润滑的情况至关重要。因此,本论文就油雾颗粒在管线传输过程中的情况进行了实验,发现油雾颗粒粒度沿管线逐渐变小的,油雾颗粒的衰减会导致后面距离主机较远的设备润滑能力下降。通过查找资料,从理论上分析了影响油雾颗粒粒度减小的三个主要因素:沿程压力降的损失;油雾颗粒在管壁上的附着情况也容易导致油雾颗粒的损失;油雾颗粒在传输过程中相互之间的碰撞和聚合等会导致油雾颗粒粒度沿程逐渐减少。总之,正是由于上述三个原因导致了油雾颗粒随着传输距离的增加使颗粒粒度越来越小。同时,在本篇论文中,从上面所讨论的三个影响因素中抽象出了能够表达的物理参数,使用多元线性回归方法建立了沿程油雾颗粒粒度与三个物理参数的数学模型,从而能够借助于所建立的数学模型,计算出沿程油雾颗粒的粒度大小。更多还原

【Abstract】 In China, the oil mist lubrication technology as an advanced lubrication theory, has been used in many industries, such as petrochemical industry, metallurgy industry, etc. People are more care of oil mist lubrication technology than oil mist particles changes in the transmission line. But if oil mist particles are changing less in transmission line ? No one knows what changes. If have, whatfactors causes loss of oil mist particles in the line? If we know the cause of the loss of particles, we will improve our beneficial form oil mist lubrication pipeline. Based on these reasons, I study this subject.It is very crucial that oil mist lubrication condition in branch pipe for oil mist particles in the pipeline transmission. Therefore, oil mist particles in the pipeline transport process condition is proved with experiment in this paper, the result is the oil mist grain size along the pipeline became smaller and smaller. But attenuation of oil mist particles will lead to lubricating ability decrease of far behind the main equipment, By looking for information, it found the three major factors lead to oil mist grain size change theoretically: loss of the pressure drop; oil mist particle attach to wall; oil mist, oil mist particles collision and cohesion in the process of transmission. All in all, it is precisely because the above three causes the oil mist particles with the transmission distance increased to lead to oil mist grain size smaller and smaller.At the same time, in this paper, from what has been discussed above three factors of abstraction to express out of physical parameters, we use multiple linear regression method to establish the frictional oil mist grain size and three physical parameters of the mathematical model, which can help the established mathematical model, calculate the particle size of the oil mist.更多还原