Gas turbine with a valve cooling system
AssigneeGeneral Electric Company
InventorsAvishetti Srinivas, Laxmikant Merchant, Anil Kumar Dasoji, Ampili Kishore Kumar
Life of this patent
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Abstract
The present application provides a gas turbine engine. The gas turbine engine may include a compressor air extraction system with a number of valves, an exhaust frame cooling system with an exhaust frame blower, and a turbine valve cooling system with one or more valve protection boxes surrounding one or more of the valves. The valve protection boxes may be in communication with a flow of air from the exhaust frame blower.
Claims20
A gas turbine engine, comprising:
- a compressor aft extraction system in communication with a compressor and a turbine;
- the compressor air extraction system comprising a first valve and a second valve, wherein the first valve and the second valve are in flow communication with the compressor and the turbine;
- the first valve and the second valve each comprising a valve body and a valve actuator;
- an exhaust frame cooling system;
- the exhaust frame cooling system comprising an exhaust frame blower;
- and
- a turbine valve cooling system;
- the turbine valve cooling system comprising a first valve protection box surrounding the first valve and a second valve protection box surrounding the second valve;
- wherein the first valve protection box comprises a first air inlet in communication with the exhaust frame blower and configured to receive a first flow of air from the exhaust frame blower;
- and
- wherein the second valve protection box comprises a second air inlet in communication with the exhaust frame blower and configured to receive a second flow of air from the exhaust frame blower.
A method of cooling a first valve and a second valve in a gas turbine engine, comprising:
- providing a flow of extraction air from a compressor to a turbine;
- controlling the flow of the extraction air by the first valve and the second valve, wherein the first valve and the second valve each comprise a valve body and a valve actuator;
- positioning the first valve in a first valve protection box, wherein the first valve protection box comprises a first air inlet in communication with an exhaust frame blower;
- positioning the second valve in a second valve protection box, wherein the second valve protection box comprises a second air inlet in communication with the exhaust frame blower;
- providing a first flow of exhaust frame cooling air from the exhaust frame blower to the first valve protection box via the first air inlet;
- and
- providing a second flow of exhaust frame cooling air from the exhaust frame blower to the second valve protection box via the second air inlet.
A gas turbine engine, comprising:
- a first air extraction valve comprising a first valve body and a first valve actuator;
- a second air extraction valve comprising a second valve body and a second valve actuator;
- wherein the first air extraction valve and the second air extraction valve are in flow communication with a compressor and a turbine;
- an exhaust frame blower;
- a first valve protection box surrounding the first air extraction valve, wherein the first valve protection box comprises a first air inlet in communication with the exhaust frame blower and configured to receive a first flow of air from the exhaust frame blower;
- and
- a second valve protection box surrounding the second air extraction valve, wherein the second valve protection box comprises a second aft inlet in communication with the exhaust frame blower and configured to receive a second flow of air from the exhaust frame blower.
Dependencies are inferred from the claim text.