Method and apparatus for dissipating heat in gas turbines...

Details Method and apparatus for dissipating heat in gas turbines... Method and apparatus for dissipating heat in gas turbines...

F - Mech Eng,Light,Heat,Weapons

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C

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F02C 7/12 (2006.01) F01D 21/00 (2006.01) F02C 6/16 (2006.01) F02C 7/18 (2006.01)

Patent

CA 1106625

Abstract of the Disclosure . An accumulation of heat which takes place in gas turbines during deceleration of turbine components, such as during shut-down, may be dissipated by flowing a supply of cooling air through the turbine stages. The cooling air is selectively supplied after the supply of combustion air and fuel has been discontinued. The cooling air is preferably flowed through the combustion chambers prior to entry into the turbine stages so that the cooling air is initially pre-heated. Additional air may preferably be supplied to the final ring of blades of each stage or of the final stage of a multi-staged turbine. - 1 -

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