跟随式介杆密封的设计应用及其改进  

DESIGN,APPLICATION AND IMPROVEMENT OF PONY ROD SERVO SEAL

作　　者：吴绍林[1] 王平[1] 任富兴[1] 

机构地区：[1]胜利石油管理局钻井工艺研究院

出　　处：《石油矿场机械》1999年第1期11-14,共4页Oil Field Equipment

摘　　要：跟随式介杆密封是指变介杆处的密封为静密封，增加了密封的可靠性。针对不同泵型号其易损件波纹管的使用寿命波动较大，改进了波纹管的参数设计。现场试验表明，改进后的介杆密封能够满足工作要求。Abstract The pony rod servo seal changes movable seal into static seal. As a result, the seal dependability is increased. But the lifetime of bellows fluctuated very much for different pump.Through analysis, we modified and tested them in the field test. It improved that this kind of seal is good enough for field requirement.

关 键 词：跟随式 介杆密封 波纹管 往复式泵 钻井泵 

分 类 号：TE926.02[石油与天然气工程—石油机械设备]