INSTALLATION FOR PRODUCTION OF THERMAL AND MECHANICAL ENERGY AND METHOD OF ITS OPERATION Russian patent published in 2023 - IPC F02C3/00 F28B5/00 F28B7/00 B01D5/00 

FIELD: thermal power engineering.

SUBSTANCE: invention relates to methods and installations for environmentally friendly generation of mechanical and thermal energy. Installation for generating thermal and mechanical energy, consisting of a combustion chamber (7), including primary and secondary zones and connected to a steam-gas turbine (8), lines for supplying carbon dioxide and water to the primary and secondary zones of the combustion chamber (7), recuperative coolers (5, 6) exhaust gases, a carbon dioxide condenser (1) connected to a refrigeration unit (17), a compressor (14), an oxygen source and a liquefied natural gas (LNG) source connected by oxygen and LNG supply lines to the primary zone of the combustion chamber (7) through heat exchangers-recovery condenser (1) carbon dioxide and heat exchangers (2, 3) heating oxygen and LNG, contact heat exchangers (13, 15) low and high pressure connected to the compressor (14), heater (4) carbon dioxide, this additionally includes the second and third combustion chambers (9, 11), the primary zones of which are connected to the oxygen and LNG supply lines, while the combustion chambers (7, 9, 11) are connected in series so that the output of one combustion chamber (7) through a steam-gas turbine (8) is connected to the primary and secondary zones of the second combustion chamber (9), the output of which, through the second steam-gas turbine (10), is connected to the primary and secondary zones of the third combustion chamber (11), the output of which is connected to the third steam-gas turbine (12), the output of which is connected to the carbon dioxide condenser (1) in series through recuperative exhaust gas coolers (6, 5), a low-pressure contact heat exchanger (13), a compressor (14) and a high-pressure contact heat exchanger (15). A method of operation of the installation is also disclosed.

EFFECT: increase the expansion work, resulting in increase in useful work in the cycle due to several heating of the working gas, as well as to increase the efficiency of the installation cycle.

6 cl, 1 dwg