METHOD AND DEVICE FOR MONITORING VALVE ASSEMBLY OF STEAM TURBINE

PROBLEM TO BE SOLVED: To provide a device and method for monitoring a valve assembly of a steam turbine. SOLUTION: The method for monitoring the valve assembly 110 can first measure vibration characteristics of at least the one valve assembly 110 before operation. Then, the method monitors behavior...

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Bibliographic Details
Main Authors WELCH DAVID E, POTDAR YOGESH KESRINATH, CHAN CHIN-PENN PETER, P E GUIDO FELICE FORTE JR
Format Patent
LanguageEnglish
Published 16.10.2008
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINE PLANTS IN GENERAL
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a device and method for monitoring a valve assembly of a steam turbine. SOLUTION: The method for monitoring the valve assembly 110 can first measure vibration characteristics of at least the one valve assembly 110 before operation. Then, the method monitors behavior of the valve assembly 110 during operation of the valve assembly 110, and can compare the behavior of the valve assembly with the vibration characteristics which are determined before the operation. By comparing the behavior of the valve assembly 110 monitored during the operation with the characteristics of the valve assembly 110 measured before the operation, a stress level received by the valve assembly 110 during the operation can be estimated. COPYRIGHT: (C)2009,JPO&INPIT
Bibliography:Application Number: JP20080082271