REGENERATIVE GAS-TURBINE EXPANSION UNIT Russian patent published in 2015 - IPC F01K27/00 

FIELD: power industry.

SUBSTANCE: regenerative gas-turbine expansion unit of a compressor station of main gas lines with gas-turbine gas pumping units provided with recovery heat carrier heaters includes the main high pressure gas line, a high pressure gas heater, a turbo-expander with an adjustable nozzle assembly, a compressor, a combustion chamber, a gas turbine, an electric generator, a fuel gas heater, a control, a high pressure fuel gas line, a high pressure fuel gas separator, an intermediate pressure fuel gas heater, a regenerative air heater, with that, the intermediate pressure fuel gas heater and the high pressure fuel gas line are used for heating of fuel gas of all combustion chambers of gas turbine units of a compressor station, with that, the turbo-expander rotor is connected via a common shaft to the compressor rotor; the gas turbine rotor is connected to the electric generator rotor, and recovery heat carrier heaters are connected via pipelines to the high pressure fuel gas heater and to the intermediate pressure fuel gas heater.

EFFECT: invention allows increasing compressor station economy.

2 dwg