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US 8,297,036 B2Granted
Method and apparatus for determining failures of gas shutoff valves in gas turbines
AssigneeUnited Technologies Corporation
InventorsRuurd A. Vanderleest, Stuart S. Hay
Life of this patent
Estimating the term…
Abstract
A controller for a turbine power plant that is operable to identify a failure condition and measure a shutoff valve performance.
Claims14
A gas turbine power plant comprising:
- a gas turbine engine having a burner section;
- a fuel system operable to supply a fuel to said gas turbine engine through a fuel supply line;
- at least one shutoff valve in fluid communication with said fuel supply line;
- a pressure sensor within said burner section;
- and
- a controller in communication with said pressure sensor and said at least one shutoff valve, said controller operable to identify an ignition failure condition, wherein said controller is operable to compare a delay between a signal from said pressure sensor to an actuation command of said at least one shutoff valve, over a period of time, to identify said ignition failure condition.
3 more elements
A gas turbine power plant comprising:
- a gas turbine engine having a burner section;
- a fuel system operable to supply a fuel to said gas turbine engine through a fuel supply line;
- at least one shutoff valve in fluid communication with said fuel supply line;
- a pressure sensor within said burner section;
- a controller in communication with said pressure sensor and said at least one shutoff valve, said controller operable to identify an ignition failure condition;
- and
- wherein said controller is operable to compare a delay between a filtered pressure signal from said pressure sensor to an actuation command of said at least one shutoff valve, over a period of time, to measure a performance of said at least one shutoff valve.
4 more elements
A gas turbine power plant comprising:
- a gas turbine engine having a burner section;
- a fuel system operable to supply a fuel to said gas turbine engine through a fuel supply line;
- at least one shutoff valve in fluid communication with said fuel supply line;
- a pressure sensor within said burner section;
- a controller in communication with said pressure sensor and said at least one shutoff valve, said controller operable to identify an ignition failure condition;
- and
- wherein said controller is operable to compare a difference between a filtered pressure signal from said pressure sensor to a pressure signal from said pressure sensor to identify said ignition failure condition.
4 more elements
Dependencies are inferred from the claim text.