GAS-TURBINE PLANT Russian patent published in 2007 - IPC F02K3/02 

FIELD: mechanical engineering; gas-turbine plants.

SUBSTANCE: proposed gas-turbine plant includes low-pressure compressor at input, power turbine at output, intermediate housing with separation of flows between compressors and channels of outer and inner loops. Inner loop contains high-pressure compressor with mixer at output. Input of channel of outer loop is connected with output of low-pressure compressor, and output, with external side of mixer. Ratio of area of channel of outer loop at flow separator in intermediate housing between compressors in gas-turbine plant to area of channel of inner loop at flow separator in intermediate housing between compressors in gas-turbine plant is within 0.1-3. Ratio of area of channel of outer loop at output of mixer to area of channel of inner loop at output of mixer is within 0.1-2.5. Number of stages of free power turbine is 1-3.

EFFECT: improved reliability and increased efficiency of plant at minimum cost owing to reduction of vibration stresses of turbine working blades and provision of uniform cooling of outer housings.

3 dwg