| 摘要 |
FIELD: power industry.SUBSTANCE: invention can be used in heat power plants (HPP) for utilisation of excess heat energy generated by HPP systems during its operation. The utilisation of excess low-grade heat of the return system water is performed using cooling liquid by means of the heat engine with closed circulation circuit, operating according to Rankine organic cycle. The cooling liquid is the low-boiling working body, for example, the liquefied propane CH. The working body is compressed in the condensate pump of the heat engine, heated in the recuperative heat exchanger of the heat engine, evaporated and overheated in the heat exchanger evaporator, expanded in the turbine expander of the heat engine, its temperature is decreased in the recuperative heat exchanger and condensed in the heat exchanger condenser of the heat engine.EFFECT: method provides increase of efficiency of heat power plant due to additional electric power generation at utilisation of excess heat energy generated by systems of heat power plant.3 cl, 1 dwg, 1 ex |
