GAS-TURBINE PLANT Russian patent published in 2006 - IPC F02C3/30 F02C7/143 

FIELD: mechanical engineering; gas-turbine plants.

SUBSTANCE: proposed gas-turbine plant contains coal gasifier, gasification products cleaning system, combustion chamber, gas turbine, at least one recuperative heat exchanger and air compressor with system to deliver water into its gas duct. Multistage air compressor is furnished additionally with at least one mixing chamber installed between housing of different stages and/or at outlet of housing of compressor last stage. Mixing chamber is furnished with means to inject water, organize swirl flow of steam-air stream and drain of nonevaporated water. Mixing chamber is made in form of ring cylindrical space arranged in gas duct of multistage compressor symmetrically relative to its axis. Size of mixing chamber is made radially increased as compared with size of housing of adjoining stage of compressor. Means to organize swirl flow of steam-air stream in mixing chamber can be made in form of tape spiral guides to swirl flow in direction of rotation of compressor blade assembly.

EFFECT: increased thermal efficiency.

3 dwg