关于柔性旋转密封

On Flexible Rotary Seals

据有关学者的实验研究表明,轴转动时,柔性旋转密封与轴之间产生从空气端向液体端的抽吸作用,以密封防漏;同时还产生从液体端向空气端的逆向抽吸,以形成油膜润滑密封。经对比实验还表明,柔性旋转密封附加轴向往复运动可改善密封性能,波形聚四氟乙烯密封是较理想的柔性旋转密封。

Experimontal investigation by some researchers shows that while the shaft is rotating, there occurs between the flexible rotary seal and the shaft for a momont suction from airend to fluid-end, creating a leakproof seal, and next moment reverse suction from fluid-end to air-end, creating a lubricant film seal. And the experiment prove that the sealing effect of flexible rotary seal can be improved by additional reciprocating motion and that the waveform PTFE seal is an optimum flexible rotary seal.