摘要
离心泵传统填料密封结构有许多缺点。近几年出现了一种 PTFE动力密封 ,它利用 PTFE(聚四氟乙烯 )唇口内壁刻的反旋螺纹对随轴旋转的介质产生分压力达到密封效果。采用 PTFE动力密封的新型离心泵密封装置 ,具有结构简单、密封可靠、成本低、装拆方便等诸多优点 ,具有广阔的应用前景。
There exist some shortcoming in the traditional packing sealing structure for centrifugal pump. The recently developed new kind of dynamic sealing PTFE(polytetrafluoroethylene) in introduced, which has the advantageous of simple structure, sealing realiability, low cost and easy construction, etc.
出处
《排灌机械》
2000年第6期15-16,24,共3页
Drainage and Irrigation Machinery
