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

FIELD: power industry.

SUBSTANCE: invention relates to power engineering and can be used in the heat power plants (HPP) for utilisation of discharge low-grade heat in condensers of steam turbines of heat power plants, utilisation of low-grade heat of oil supply system of the steam turbine bearings, utilisation of excessive low-grade heat of return network water and high-grade heat of industrial steam extraction. The method of utilisation of heat energy generated by heat power plants includes the supply of heating performance steam from the steam turbine extraction into the steam space of the lower and upper network heaters, supply of network water from consumers along the return network water pipeline into the lower and upper network heaters, then the network water is pumped to the network water supply pipeline, and the spent steam is pumped from the steam turbine to the steam space of the condenser for condensation on the surface of condenser tubes with cooling liquid, and the condensate is pumped to the regeneration system, and in the steam turbine the oil supply system with oil cooler for steam turbine bearings is used, and at steam condensation the utilisation of waste low-grade heat energy of steam spent in the turbine is performed by means of cooling liquid. The heat power plants use the heat exchanger cooler for network water and also the condensation unit with the steam turbine condenser with production steam extraction, and additionally the process includes the utilisation of low-grade heat of the oil supply system with oil cooler for steam turbine bearings, of return network water, and utilisation of high-grade heat of production steam extraction, while the utilisation of discharge low-potential heat energy of spent turbine steam, of the oil supply system of steam turbine bearings, of return network water, and utilisation of high-grade heat of production steam extraction are performed by means of the heat engine with the closed circulation circuit according to Renkin organic cycle with the low-boiling working body, while it is compressed in the condensate pump of the heat engine, heated in the condenser of the steam turbine, in the oil supply cooler, in the oil cooler, in the heat exchanger cooler of network water, heated and evaporated in the steam turbine condenser with production steam extraction, expanded in the turbine expander and condensed in the heat exchanger condenser.

EFFECT: increase of efficiency of heat power plant and decrease of heat emissions into environment.

3 cl, 1 dwg