OPERATION METHOD OF THE NUCLEAR ELECTRIC STATION Russian patent published in 2017 - IPC F01K13/00 

FIELD: power industry.

SUBSTANCE: operation method of the nuclear power plant is that the heat energy, selected by the coolant in the nuclear reactor active zone, is directed by the main circulation pump to the steam generator, then supply the saturated steam from the steam generator to the steam turbine and transmit the mechanical energy of the steam turbine shaft rotation to the turbine generator rotor. The exhaust steam from the steam turbine is directed to the condenser, the condensate formed in the condenser of the steam turbine is pumped by the condensate pump through the regenerative heaters of low pressure system to the deaerator, and then by the feeding pump through the regenerative heaters of high pressure system into the steam generator. It is carried out the constant cooling of the turbine generator gas cooling system by circulating of cooling distillate, then the heated distillate of the turbine generator gas cooling system is supplied into the heat exchanger-evaporator of the heat pump, further the heated distillate is directed to the heat exchangers of the distillate cooling, and resulting in the heat exchanger-evaporator of the heat pump the thermal power is converted and supplied into the heat exchanger-condenser of the heat pump, which is formed in the single body with one of the low-pressure heaters of the first stage, in which the heating of the main condensate part due to the heat from the low boiling coolant of the heat pump.

EFFECT: invention allows to reduce the flow rate of the steam from the turbine to the low pressure regenerative heaters system through the use of turbine generator gas cooling system heat losses during heating of the main condensate in one of the low-pressure heaters of the first stage.

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