SMALL-SIZE GAS TURBINE PLANT Russian patent published in 2024 - IPC F02C7/08 F02C3/08 

FIELD: power engineering.

SUBSTANCE: invention relates to the field of power engineering, namely to small-size gas turbine plants (SGTP) for the needs of distributed power engineering. Disclosed is a structure consisting of gas generator (1), electric generator (2), heat exchanger (3) and frame (4), to which the unit is attached by means of transverse (5) and longitudinal (6) lugs. Gas generator (1) structure includes inlet device (7), to which electric generator (2) is attached, rotor, which includes solid shaft (13) with installed impellers of centrifugal compressor (9) and radial turbine (25), mounted on two ball bearings (26), support (12), transmitting loads from rotor part to attachment points to frame (4), and combustion chamber (14) with flame tube (15). After inlet device (7) and centrifugal compressor (8), air enters heat exchanger (3), where it is heated by hot gas coming out of nozzle (30). Preheated air enters combustion chamber (14), where fuel-air mixture is combusted. Preheating increases efficiency of the power plant. After combustion chamber (14) gas is supplied to turbine, outlet device (32) and partially to heat exchanger (3).

EFFECT: increased efficiency of small-size gas turbine plant operation due to provision of required air temperature supplied to combustion chamber, as well as minimum pressure losses of hot heat carrier.

5 cl, 6 dwg