机械密封比填料密封具有许多优点,如:适应高温、高压、高速;减少经常性维修,运行可靠;减少对活塞杆的磨损:极大提高密封性能;降低成本等。目前,机械密封只用于旋转轴的密封装置中,而把机械密封用在往复油缸的密封上,是迫切需要的。 Mechanical seals have many advantages over stuffing seals, such as: adapting to high temperatures, pressures, and speeds; reducing frequent maintenance and reliable operation; reducing wear on piston rods: greatly improving seal performance and reducing costs. At present, the mechanical seal is only used in the seal of the rotating shaft, and the mechanical seal is used on the seal of the reciprocating cylinder, which is urgently needed.