FUEL-FREE TRIGENERATION PLANT Russian patent published in 2018 - IPC F25B11/02 F25B29/00 

FIELD: heat-and-power engineering.

SUBSTANCE: invention relates to heat engineering. Fuel-free trigeneration unit is connected between the high-pressure gas pipeline and the low-pressure gas pipeline, separated by a first throttle. Unit contains series-installed the first heat exchanger, an expander with an electric generator and the second heat exchanger connected to the consumer of electricity, heat and cold. Unit also contains series-connected compressor, evaporator and the second throttle, as well as the third heat exchanger, the outlet of which is connected through the refrigerant line to the compressor inlet. Third heat exchanger is connected to a heat source of low temperature potential. Unit is equipped with a condenser connected between the compressor and the second throttle and connected to the intermediate heat carrier discharge line to the first heat exchanger, containing the first power-driven control valve. Fourth heat exchanger is connected through the intermediate heat carrier discharge line containing the second power-driven control valve, to the condenser. Actuators are connected to the generator. Fourth heat exchanger is connected to the consumer of electricity, heat and cold.

EFFECT: technical result consists in the possibility of producing heat for the consumer.

1 cl, 1 dwg