THERMAL POWER STATION Russian patent published in 2021 - IPC F01K13/00 F01K7/38 

FIELD: thermal power engineering.

SUBSTANCE: invention relates to thermal power engineering and can be used in thermal power plants. The technical result is achieved by the fact that the thermal power plant contains a steam turbine unit, consisting of a steam boiler. The steam boiler is connected through a superheater with a high pressure cylinder of a steam turbine unit, which is mechanically connected to a low pressure cylinder of a steam turbine unit, a high pressure cylinder of a steam turbine unit is connected, in turn, with an intermediate superheater, with the third and first high pressure heaters on the hot side, a deaerator and the fourth low pressure heater on the hot side through extractions, as well as with a low pressure cylinder of a steam turbine unit, which is a drive for an electric generator of a steam turbine unit. An intermediate superheater is connected to the high pressure cylinder of the steam turbine unit, the low pressure cylinder of the steam turbine unit is connected to the first, second and third low pressure heaters on the hot side through extracts and the condenser of the steam turbine unit. The condenser of the steam turbine unit is connected to the condensate pump of the steam turbine unit, the condensate pump of the steam turbine unit is connected to the first low pressure heater on the cold side and to the condensate pump of the combined cycle gas unit, the first, second, third and fourth low pressure heaters are connected in series with each other on the cold side. The fourth low pressure heater on the cold side is connected to the deaerator, which is connected to the first high pressure heater on the cold side through the feed pump of the steam turbine unit, the first high pressure heater on the hot side is connected to the deaerator, and on the cold side to the second high pressure heater, the second heater high pressure on the hot side is connected to the first high pressure heater and to the medium pressure drum of the steam-gas unit, and on the cold side to the third high pressure heater, the third high pressure heater on the hot side is connected to the second high pressure heater, and on the cold side - to the steam boiler , while the low pressure cylinder of the steam turbine unit is also connected through a bleed, to which the second low pressure heater is connected, with the heating water heater on the hot side. The heating water heater on the hot side through the drain pump is connected to the third low pressure heater, and on the cold side to the heat consumer, which, in turn, is connected to the network electric pump, and the network electric pump is connected to the heating water heater on the cold side, and the steam-gas a block consisting of a compressor connected through a combustion chamber with a gas turbine, which drives the first electric generator of the combined cycle, the gas turbine is connected to a waste heat boiler, which, in turn, consists of a high pressure superheater connected on the hot side with a high pressure, and on the cold side - with the high-pressure cylinder of the steam-gas block, which is mechanically connected to the medium-pressure cylinder of the steam-gas block, the high-pressure evaporator is connected on the hot side with the medium-pressure superheater, and on the cold side with the high-pressure drum of the steam-gas block, the medium pressure superheater on the hot side it is connected to the medium-pressure evaporator, and on the cold side - to the medium-pressure cylinder of the steam-gas block, which is mechanically connected to the low-pressure cylinder of the steam-gas block, 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 of the steam-gas block, the low-pressure superheater on the hot side is connected to the high-pressure economizer, and on the cold side to the medium-pressure cylinder of the steam-gas block, the high-pressure economizer on the hot side is connected to the medium-pressure economizer, and on the cold side - to the high-pressure drum of the steam-gas block, the economizer medium pressure on the hot side is connected to the low pressure evaporator, and on the cold side - to the medium pressure drum of the steam-gas unit, the low-pressure evaporator on the hot side is connected to the gas condensate heater, and on the cold side - to the low-pressure drum of the steam-gas unit, the gas the condensate heater is connected to the atmosphere on the hot side, and on the cold side - to the low-pressure drum of the steam-gas unit, the low-pressure drum of the steam-gas unit is connected to the low-pressure evaporator in the water space and through medium and high-pressure feed pumps of the steam-gas unit to medium and high pressure economizers respectively, and in the steam space - with a low-pressure steam superheater, the medium-pressure drum of the steam-gas block is connected to the medium-pressure evaporator in the water space, and to the medium-pressure steam superheater in the steam space, the high-pressure drum of the steam-gas block is connected to the high-pressure evaporator in the water space, and on steam - with a high-pressure superheater, a high-pressure cylinder of a steam-gas block is connected to a medium-pressure superheater, a medium-pressure cylinder of a steam-gas block is connected to a low-pressure cylinder of a steam-gas block, a low-pressure steam cylinder the base unit, which is the drive for the second electric generator of the steam-gas unit, is connected to the condenser of the steam-gas block, the condenser of the steam-gas block is connected to the condensate pump of the steam-gas block, the condensate pump of the steam-gas block is connected to the gas condensate heater.

EFFECT: invention is aimed at increasing the efficiency of a thermal power plant.

1 cl, 1 dwg