초록 ▼

A method and apparatus for optimizing the radial clearance of rotor and stator vanes with their opposed structure for axial flow compressors of gas turbine power plants in which rotor disks are vented and thermally controlled by compressed air taken from the main flow path in the compressor via open

A method and apparatus for optimizing the radial clearance of rotor and stator vanes with their opposed structure for axial flow compressors of gas turbine power plants in which rotor disks are vented and thermally controlled by compressed air taken from the main flow path in the compressor via openings in the inner surface of the main flow path at one or more of the compressor stages. The removed air is supplied to annular spaces formed between rotor and/or seal support disks.

대표청구항 ▼

Apparatus for optimizing the clearance between the vanes and adjoining structure in a multi-stage axial flow compressor of a gas turbine power plant by thermally controlling the disks of the rotor of the compressor by compressed air vented from the compressor, said compressor having a flow channel i

Apparatus for optimizing the clearance between the vanes and adjoining structure in a multi-stage axial flow compressor of a gas turbine power plant by thermally controlling the disks of the rotor of the compressor by compressed air vented from the compressor, said compressor having a flow channel in which compressed air passes through the successive stages of rotor and stator vanes, the flow channel having an inner bounding surface which is provided with an opening in at least one stage of the compressor for flow of vented compressed air from said flow channel, said rotor including spaced adjacent disks comprising outer rim portions including said rotor vanes and inner hub portions and further defining annular spaces into at least one of which the vented compressed air flows from said opening, said means defining a path for discharge of the vented compressed air from said at least one annular space after the compressed air has contacted the disks at said inner hub portions for effecting thermal control thereof so that the local temperature at said inner hub portions is adapted to the local temperature at said respective outer rim portions of said disks.