GAS-TURBINE PLANT Russian patent published in 2004 - IPC

FIELD: mechanical engineering. SUBSTANCE: proposed gas- turbine plant including compressors, turbines and two combustion chambers, has power turbine at outlet and also housing with channel of external circuit and ring air mixer. One of combustion chambers is arranged from inner side of air mixer. External circuit channel is connected at inlet with outlet of low pressure compressor, and at outlet, with ring air mixer. Fuel valve is installed at inlet of combustion chamber nozzles. Adapter channel is made between mixer and first nozzle assembly of power turbine. Ratio of axial length of said channel to height at mixer outlet is 1.5- 4. Invention provide reduction of temperature of power turbine outer housing and reduction of thermal losses at decrease of use of efficiency load. EFFECT: improved reliability, fire safety and explosion safety at reduced consumption n operation. 1 dwg