COMBINED CYCLE GAS PLANT Russian patent published in 2022 - IPC F01K23/10 F24S20/40 

FIELD: thermal power engineering.

SUBSTANCE: invention relates to thermal power engineering, namely to devices for generating electrical energy, and can be used in thermal power plants. The expected result is achieved by the fact that the combined cycle gas plant contains a compressor connected through the combustion chamber to a gas turbine, which is the drive for the first electric generator, the gas turbine is connected to a heat recovery boiler, which, in turn, consists of a high-pressure superheater connected on the hot side with a high-pressure evaporator, and on the cold side with the high-pressure cylinder, which is mechanically connected to the medium-pressure cylinder, the high-pressure evaporator on the hot side is connected to the medium-pressure superheater, and on the cold side with a high–pressure drum, the medium-pressure superheater on the hot side is connected to the medium-pressure evaporator, and on the cold side to the medium-pressure cylinder, which is mechanically connected to the low-pressure cylinder, the medium-pressure evaporator on the hot side is connected to the low-pressure superheater, and on the cold side to the medium-pressure drum, the low-pressure superheater on the hot side the side is connected with a high-pressure economizer, and on the cold side with the medium-pressure cylinder, the high-pressure economizer on the hot side is connected to the medium-pressure economizer, and on the cold side to a high-pressure drum, the medium-pressure economizer on the hot side is connected to the low-pressure evaporator, and on the cold side to the medium-pressure drum, the low-pressure evaporator on the hot side is connected to the gas condensate heater, and on the cold side with the low-pressure drum, the gas condensate heater on the hot side is connected to the atmosphere, and on the cold side with a low-pressure drum, the low-pressure drum is connected through the water space to the low-pressure evaporator and through medium and high-pressure feed pumps to medium and high-pressure economizers, respectively, and through the steam space to the low-pressure superheater, the medium-pressure drum is connected through the water space to the medium-pressure evaporator, and through the steam to the medium-pressure superheater, the high-pressure drum is connected to a high-pressure evaporator in the water space, and the high-pressure superheater in the steam space, the high-pressure cylinder is connected to the medium-pressure superheater, the medium-pressure cylinder is connected to the low-pressure cylinder, the low-pressure cylinder, which is the drive for the second electric generator, is connected to a condenser, the condenser is connected to the condensate pump, the condensate pump is connected to the condensate gas heater, at the same time, an additional intermediate superheater is installed between the medium and low-pressure cylinders, connected on the cold side with a circulation pump, the circulation pump is connected to a group of solar collectors, the group of solar collectors is connected to an additional superheater.

EFFECT: improving the combined cycle gas plant, which makes it possible to increase the service life of the combined cycle gas plant and increase its electrical efficiency.

1 cl, 1 dwg