POWER-GENERATING GAS-TURBINE PLANT Russian patent published in 2006 - IPC F02C7/12 F01D25/14 

FIELD: power engineering; mechanical engineering.

SUBSTANCE: proposed power-generating gas-turbine plane has gas-turbine engine with fitted-in turbocompressor, free power turbine with external load drive shaft, input device and behind-the-turbine diffuser. Gas-turbine engine contains casing enclosing the engine and forming with the engine and forming with engine housing and annular chamber blind side of drive shaft and insulated from air duct of compressor by adjustable air takeoff branch pipes. Casing enclosing gas-turbine engine is a solid part connected with input device. Gas-turbine plane is furnished at least with one forced-draught air fan in duct of which heat exchanger is mounted. Input of heat exchanger is connected with output of adjustable compressor air takeoff branch pipes. Output of heat exchanger is connected with turbocompressor cooled air pressuring manifold, particularly, for pressurizing and cooling of bearing supports, and it contains exhaust air pipeline insulated from exhaust duct of gas-turbine engine. Channels connected by pipelines with air fan are made in input part of turbocompressor for external blowing. Casing is provided at output with at least one cross ring wall with sealing over outer surface of behind-the-turbine diffuser forming annular chamber blind from side of behind-the-turbine diffuser.

EFFECT: increased summary efficiency, improved reliability and effectiveness of gas-turbine plant.

4 cl, 6 dwg