CLOSED-CYCLE GAS TURBINE INSTALLATION WITH FIRE HEATER Russian patent published in 2022 - IPC F01K11/02 

FIELD: power engineering.

SUBSTANCE: invention relates to the field of power engineering and concerns construction of closed-cycle gas turbine installations used in electric power industry. A closed-cycle gas turbine installation with a fire heater contains a fire heater with a hearth burner, a turbine, a regenerator, a gas cooler, a compressor, an electric generator. In this case, the heater-regenerator is formed by vertical pipes with upper and lower annular collectors, to which ends of pipes are attached. Vertical pipes, along a length, are separated into a regeneration zone and a heating zone, separated from each other with a heat-resistant partition impermeable for combustion products. At the same time, the hearth burner of the heater is in the center of the lower annular collector, and the upper annular collector is located in the regeneration zone and is equipped with an annular cylindrical expendable nozzle facing a flow part of the turbine. The flow part of the turbine is docked to a flow part of the channel gas cooler, the flow part of which is docked to a flow part of the compressor. In this case, a working medium (gas) is supplied from the compressor to the regenerator through an adjustment valve, and the working medium is supplied from the regenerator to the lower annular collector, wherein flue gases are removed from the heater through an annular tubular air heater limiting a flue volume of the heater.

EFFECT: invention allows for an increase in the efficiency of closed gas turbine installations and reduction in dimensions and weight of an installation.

1 cl, 2 dwg, 1 tbl