TURBINE-GENERATOR HYDROGEN SEAL OIL SYSTEM DIAGNOSIS

• Main Authors: RAFTELIS FOTIOS, ANTALEK JAMES DANIEL, O'DELL KEVIN JON, SCARLATA STEVEN PAUL, FITZMORRIS DANIEL JAMES, MAGRO ABBY MARIE, ANDRITZ JEFFREY JAMES, GEORGE ANTHONY JAMES
• Format: Patent
• Language: English
• Published: 06.10.2011
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; CYLINDERS; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ENGINE PLANTS IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATION; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; PHYSICS; PISTONS; SEALINGS; STEAM ENGINES; TARIFF METERING APPARATUS; TESTING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide capability for identifying and solving problems related to a seal oil system as soon as possible.SOLUTION: A hydrogen cooled generator (10) having the system for diagnosing the problems related to the seal oil system. The hydrogen cooled generator includes: a shaft (14) having a turbine end (30) and a collector end (32); a first shaft seal (16) located about the shaft at the turbine end (30); a second shaft seal (16) located about the shaft at the collector end (32); a first set of sensors (22A, 22C) for measuring seal oil pressure differentials across both shaft seals (16); a second set of sensors (24A, 26A) for measuring seal oil temperature differentials across both shaft seals (16); a third sensor (34A, 34B) for measuring a hydrogen side (18) seal oil flow rate; and the system (48) for analyzing data collected from at least two sensors to diagnose the shaft seals.