公开(公告)号：US11613999B2

公开(公告)日：2023-03-28

申请号：US16605623

申请日：2018-04-18

申请人： Compressor Controls Corporation

发明人： Michael Lev Tolmatsky ,  Serge Staroselsky ,  Paul Marvin Negley ,  John Tse

IPC分类号： G01M13/003 ,  F01D21/14 ,  F16K37/00 ,  F04D27/00

摘要： Automatic testing for control valves is provided for diagnosing of actuators, including actuators not equipped with analog or discrete position transmitters. A valve controller confirms steady-state conditions for a turbo-compressor system that includes a control valve in a first position and sends, to an actuator for the control valve, a signal to initiate a partial valve stroke to move the control valve away from the first position. The valve controller receives feedback signals from sensors in the turbo-compressor system and monitors the feedback signals for a change from the steady-state conditions. When the monitoring detects a change from the steady-state conditions within a defined time period, the valve controller sends, to the actuator, a signal to return the control valve to the first position. When the monitoring does not detect a change from the steady-state conditions within the defined time period, the valve controller generates an alarm signal.