Patent RU-2747786-C1 (RU)
Title: Thermal power station
Inventor: Shaposhnikov Valentin Vasilevich
IPC: F01K13/00
Filed: 2020-10-09
Granted: 2021-05-14
Abstract: FIELD: thermal power engineering. 
     SUBSTANCE: invention relates to thermal power engineering, it can be used in thermal power stations. The thermal power station contains a steam turbine unit consisting of a steam boiler connected via a steam super-heater to a high-pressure cylinder of the steam turbine unit, which is mechanically connected to a low-pressure cylinder of the steam turbine unit. The high-pressure cylinder of the steam turbine unit is connected, in turn, to an intermediate steam super-heater, to the third and first high-pressure heaters on the hot side, to a deaerator and fourth low-pressure heater on the hot side through the taps, as well as to a low-pressure cylinder of the steam turbine unit, which is the drive for the electric generator of the steam turbine unit. The intermediate steam super-heater 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 the taps and to 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. The first, second, third and fourth low-pressure heaters are sequentially connected to each other on the cold side. The fourth low-pressure heater is connected to the deaerator on the cold side. The deaerator is connected via the feed pump of the steam turbine unit to the first high-pressure heater on the cold side. The first high-pressure heater is connected to the deaerator on the hot side, and to the second high-pressure heater on the cold side. The second high-pressure heater is connected to the first high-pressure heater on the hot side, and to the third high-pressure heater on the cold side. The third high-pressure heater is connected to the second high-pressure heater on the hot side, and to a steam boiler on the cold side. The high-pressure cylinder of the steam turbine unit is also connected through the last tap to the medium-pressure cylinder of the steam-gas unit, consisting of a compressor connected through the combustion chamber to a gas turbine, which is the drive for the first electric generator of the steam-gas unit. The gas turbine is connected to the recovery boiler, which, in turn, consists of a high-pressure steam super-heater connected to a high-pressure evaporator on the hot side, and to the high-pressure cylinder of the steam-gas unit on the cold side, which is mechanically connected to the medium-pressure cylinder of the steam-gas unit. The high-pressure evaporator is connected to the medium-pressure steam super-heater on the hot side, and to the high-pressure reel of the steam-gas unit on the cold side. The medium-pressure super-heater is connected to the medium-pressure evaporator on the hot side, and to the medium-pressure cylinder of the steam-gas unit on the cold side, which is mechanically connected to the low-pressure cylinder of the steam-gas unit. The medium-pressure evaporator is connected to the low-pressure steam super-heater on the hot side, and to the medium-pressure reel of the steam-gas unit on the cold side. The low-pressure steam super-heater is connected to the high-pressure economizer on the hot side, and to the medium-pressure cylinder of the steam-gas unit on the cold side. The high-pressure economizer is connected to the medium-pressure economizer on the hot side, and to the high-pressure reel of the steam-gas unit on the cold side. The medium-pressure economizer is connected to the low-pressure evaporator on the hot side, and to the medium-pressure reel of the steam-gas unit on the cold side. The low-pressure evaporator is connected to the gas condensate heater on the hot side, and to the low-pressure reel of the steam-gas unit on the cold side. The gas condensate heater is connected to the atmosphere on the hot side, and to the low-pressure reel of the steam-gas unit on the cold side. The low-pressure reel of the steam-gas unit is connected through the water space to the low-pressure evaporator and through the medium and high-pressure feed pumps of the steam-gas unit to the medium and high-pressure economizers, respectively, and through the steam space to the low-pressure steam super-heater. The medium-pressure reel of the steam-gas unit is connected through the water space to the medium-pressure evaporator, and through the steam space to a medium-pressure steam super-heater and a second high-pressure heater. The high-pressure reel of the steam-gas unit is connected through the water space to the high-pressure evaporator, and through the steam space to a high-pressure steam super-heater. The high-pressure cylinder of the steam-gas unit is connected to the medium-pressure steam super-heater. The medium-pressure cylinder of the steam-gas unit is connected to the low-pressure cylinder of the steam-gas unit. The low-pressure cylinder of the steam-gas unit, which is the drive for the second electric generator of the steam-gas unit, is connected to the condenser of the steam-gas unit. The condenser of the steam-gas unit is connected to the condensate pump of the steam-gas unit. The condensate pump of the steam-gas unit is connected to the gas condensate heater. 
     EFFECT: improvement of the thermal power station, which allows increasing the electrical efficiency coefficient of the thermal power station. 
     1 cl, 1 dwg