Seal Monitoring and Control System

摘要

A seal monitoring and control system for a gas lubricated non-contacting seal includes various sensors providing signals to a programmable logic control system. The control system is disposed to determine a presence of an anomalous operating condition of the seal, for example, based on phase, relative position of rotor to stator or other signals in combination provided by the various sensors to provide an output signal, which in one embodiment performs at least one mitigating process to correct the anomalous operating condition by adjusting at least one operating parameter of the seal.

主权项

1. A seal monitoring system for a gas lubricated non-contacting seal disposed in a seal chamber defined by a housing in sealing relationship between a rotatable shaft and said housing of comprising:
a phase sensor disposed in said seal chamber to provide a phase signal indicative of non-gaseous matter adjacent to said gas lubricated non-contacting seal; and a programmable logic control system disposed to receive said phase signal, wherein said programmable logic control system is further disposed to determine an operating condition of said gas lubricated non-contacting seal based on said phase signal and provide an output signal in response to said operating condition.