METHOD OF POWER PLANT OPERATION Russian patent published in 2011 - IPC F01K13/00 

FIELD: power engineering.

SUBSTANCE: method of power plant operation consists in supply of the main steam of the last bleed of the steam turbine low pressure cylinder into a heat-exchanger-condenser of a heat pump inbuilt into a flow path of a chamber of the last bleed of the steam turbine, where heat is supplied to the main steam from a low-boiling coolant of a heat pump, then the main steam of the steam turbine is sent to a condenser of the steam turbine, at the inlet of which in the heat-exchanger-evaporator of the heat pump installed as an inbuilt bundle of condenser tubes, the low-boiling coolant of the heat pump evaporates, condensate from the steam turbine condenser is drained by means of a condensate pump and is supplied into the first low pressure heater, which receives heat from the low-boiling coolant of the heat pump, then the main condensate of the steam turbine used steam is heated in the subsequent low pressure heaters, is deaerated in a deaerator, with a feed pump it is supplied into high pressure heaters, a steam generator, where steam is produced, which is supplied into a high pressure cylinder of the steam turbine, and is returned to a low pressure cylinder of the steam turbine.

EFFECT: invention makes it possible to reduce cooling water temperatures at the outlet from the condenser, to increase steam temperatures in the last stages of the low pressure cylinder and to reduce steam moisture and erosion wear of blades in the last stages of the steam turbine.

1 cl, 5 dwg