HEAT POWER PLANT OPERATION MODE Russian patent published in 2015 - IPC F01K17/02 

FIELD: power industry.

SUBSTANCE: method of utilisation of thermal energy generated by heat power plant includes the supply of steam with heating parameters from withdrawal of the steam turbine into the steam space of the lower and upper network heaters, supply of network water from consumers into the lower and upper network heaters. Network water is pumped into the network water supply pipeline, the spent steam is pumped into the steam space of the condenser, and condensate - into the regeneration system. In the steam turbine the oil supply system with the oil cooler of bearings is used, and at vapour condensation the utilisation of waste low-potential heat energy of steam spent in the turbine is performed. In the heat power plant the heat exchanger-cooler of network water is used which is installed on the network water return pipeline, and also the condenser unit, fitted with the steam turbine condenser with production steam extraction; also the utilisation of low-grade heat of the oil supply system for lubrication of bearings, low-grade heat of the return network water, and high-grade heat of the production steam withdrawal are performed. The utilisation is performed by means of the heat engine with the closed circulation loop using the Rankine organic cycle with the low-boiling working body. It is compressed in the condensate pump, heated in the recuperative heat exchanger of the heat engine, in the condenser of the steam turbine, in the oil cooler in the heat exchanger cooler of network water, heated and evaporated in the condenser of the steam turbine with production steam withdrawal, expanded in the turbine expander, its his temperature is decreased in the recuperative heat exchanger and condensed in the condensing heat exchanger.

EFFECT: improvement of efficiency of heat power plant, increase of service and reliability of operation of the steam turbine condenser and decrease of thermal emissions into environment.

3 cl, 1 dwg