旋转速度对磁流体密封能力的影响研究

Effect of the Rotate Speed of Magnetic Fluid Seal on Seal Capacity against Water

根据磁学理论进行了磁回路的磁系统设计 ,在此基础上研制了磁流体密封的实验装置 ;同时进行了速度和密封能力关系的实验研究 ,特别考察了小轴径在低旋转速度和静止时磁流体密封能力的变化。试验结果表明 :随着轴的转速的提高 ,密封能力下降 ;而且速度越高 ,理论和实验的背离现象越严重 ;小轴径低旋转速度时 。

The principle of magnetic fluid seal was described and with the calculation of magnetic loop based on magnetic theory, a test unit for magnetic fluid seal was established in order to hold out the applied technique of Magnetic Fluid Seal(MFS). In the experiment, the relationship between the seal capacity of magnetic fluid and the different rotate speed was determined, and the variance of magnetic fluid seal capacity was also tested with the shaft rotating or stationary. The result shows that the seal capacity of magnetic fluid is raised with the decrease of rotate speed. When the rotate speed is small, the result isn't almost efffected.