INSTALLATION FOR ELECTRICAL ENERGY GENERATION FOR UTILIZATION OF HEAT OF SMOKE AND EXHAUST GASES Russian patent published in 2018 - IPC F01K25/08 

FIELD: power engineering.

SUBSTANCE: invention relates to power engineering in secondary energy resource utilization systems, namely to installations for the generation of electrical energy in the utilization of the heat of smoke and exhaust gases on a low-boiling working substance. Installation for the generation of electrical energy for the utilization of the heat of smoke and exhaust gases includes a steam turbine circuit, It consists of four hydraulic stages, each of which includes a stage of a turbine located on the same shaft with an electric generator, the shaft common for all turbines, each stage of the turbine is connected to the recuperative heat exchanger and the corresponding sections of the heat recovery boiler, which successively transfers heat to each hydraulic circuit, while the capacitor and the pump are the same for the whole circuit. As a low-boiling working substance, a fluorine-organic working substance is used - fluorocarbon. Fluorocarbons are octafluoropropane C₃F₈ or cyclofluorobutane C₄F₈, or decafluorobutane C₄F₁₀. Depending on the size of the utilized temperature difference, the required number of hydraulic circuits is used, namely, with utilization up to 550°C - four stages, up to 450°C - three steps, up to 350°C - two stages, up to 250°C - two stages,

less than -150°C - one step.

EFFECT: invention makes it possible to increase the average integral heat input temperature and, consequently, to increase the thermodynamic efficiency of this power generation technology.

3 cl, 2 dwg