The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 1989
Filed:
Sep. 28, 1988
Daniel E Fridsma, Winter Springs, FL (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A method and apparatus for continually monitoring the operating state of a set of governor valves (42,60) in a steam supply system for the first stage of a high pressure turbine during operation of the turbine, the system including a source including a throttle valve (40) for supplying steam at a defined pressure to the governor valves (42,60) and a plurality of nozzles (44) each connected to deliver steam from a respective governor valve (42,60) to a respective turbine inlet region, by the steps of: monitoring (52) the pressure at the outlet of each governor valve (42,60); monitoring (50,54) the pressure at the inlet to the throttle valve(s) (40) and at the turbine first stage; and comparing (56) the monitored outlet pressure of each governor valve (42,60) with the monitored pressure at the throttle valve inlet and at the turbine first stage in order to provide an indication of the operating state of each governor valve (42,60) and to detect and alert power plant operators of valve malfunctions or inefficient operation.