公开(公告)号：US20170045144A1

公开(公告)日：2017-02-16

申请号：US15229712

申请日：2016-08-05

申请人： Niran Singh KHAIRA ,  Richard A. Huntington ,  Michael T. Matheidas

发明人： Niran Singh KHAIRA ,  Richard A. Huntington ,  Michael T. Matheidas

IPC分类号： F16J15/43

CPC分类号： F16J15/43 ,  F16J15/3444 ,  F16J15/3492

摘要： A method to control an axial separation between a rotating ring and a stationary ring of a dry gas seal. The dry gas seal restricts leakage of a gas or other fluid to or from a rotating device. At least one property of the gas or other fluid is sensed. At least one of the axial separation between the rotating ring and the stationary ring, and a time rate of change of the axial separation, is sensed. A stiffness of a film between the rotating ring and the stationary ring is estimated. A field strength of at least one magnetic device is adjusted based on at least two of the sensed axial separation, the sensed time rate of change of the separation, and the estimated film stiffness. The axial separation between the rotating ring and the stationary ring is adjusted.

摘要翻译： 控制干气密封的旋转环和固定环之间的轴向间隔的方法。 干燥的气体密封件限制了气体或其它流体向或从旋转装置泄漏。 气体或其他流体的至少一种性质被感测。 感测到旋转环和静止环之间的轴向间隔中的至少一个以及轴向间隔的时间变化率。 估计旋转环和固定环之间的膜的刚度。 基于检测到的轴向间隔，检测到的分离时间变化率和估计的膜刚度中的至少两个来调节至少一个磁性装置的场强。 调节旋转环和固定环之间的轴向间距。