FIELD: machine building.
SUBSTANCE: invention relates to turbomachinery and can be used in gas industry for compression of natural gas at compressor stations of main gas pipelines. Invention can be used both for reconstruction of operating gas pumping units of the compressor station and for production of new gas transfer units. Exhaust system of a gas-turbine engine of a gas transfer unit is connected by means of a heat exchanger-evaporator, which is located in alignment with the exhaust pipe, consisting of an organic Rankine cycle (OCR) for conversion of heat of combustion products. Heat exchanger-evaporator is installed with possibility of unobstructed passage of combustion products through free section along axis of exhaust pipe, and its heat exchange surfaces in accordance with versions of the invention are located outside and/or inside the exhaust pipe, along its circumference, simultaneously, gas fuel heat exchangers of the fuel gas preparation unit are serially connected on the fuel gas path, and between them with successive connection to them expander-generator with gas reduction function is installed, wherein one of gas-oil heat exchangers is connected to oil-supply system of gas turbine engine, and the other one is connected to oil supply system of supercharger of gas transfer unit.
EFFECT: invention makes it possible to create an assembly having the increased efficiency of a gas-turbine plant.
3 cl, 4 dwg
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