STEAM-HEATED POWER PLANT WITH A DOUBLE ZARYANKIN CYCLE Russian patent published in 2022 - IPC F01K23/10 F22G5/00 

FIELD: heat engineering.

SUBSTANCE: invention relates to the field of heat engineering and is designed to increase the efficiency of electricity generation based on existing condensing turbines of steam turbine installations. A steam-heated power plant with a dual thermodynamic Zaryankin cycle is revealed. The installation consists of the main steam turbine unit I and the recycling steam turbine unit II. The main turbine of unit I has an inlet temperature of more than 1200°C and a pressure of 30-35 MPa. The temperature is maintained at the input of the first stage of the central heating system more than 1200°C due to the operation of an external high-temperature superheater, made with the possibility of steam overheating, while the heating medium in it is steam formed during the combustion of hydrogen fuel. The steam after the medium-pressure cylinder of the main turbine enters the utilization boiler-heat exchanger of unit II, in which the excess heat is disposed of according to the Rankine cycle. On the other side, steam cooled to a temperature of 250-280°C at a pressure of 3.5 MPa, it goes to the central turbine of the main turbine of unit I.

EFFECT: creation of a steam-heated installation with ultra-supercritical steam parameters, due to which an increase in the efficiency of electricity generation is ensured (the efficiency of the installation increases to 62-68%), as well as a reduction in the specific ecological load on the environment.

7 cl, 1 dwg, 2 tbl