THE DISTRICT HEAT SYSTEM TO GET A ADDITIONAL ELECTRIC POWER BY UTILIZING OF AUXILIARY BOILER OF THE DISTRICT HEAT SYSTEM

摘要

A district heating system for getting an additional electric power by utilizing an auxiliary boiler of the district heating system is provided to increase operating rate of the district heating system by additionally installing an overheating vapor generator, a vapor turbine, a generator and a heat exchanger combined with a condenser, and obtain economic gain by generating and selling high priced electricity to an electric power company. A district heating system for getting an additional electric power by utilizing an auxiliary boiler of the district heating system comprises a plurality of boilers(B1,B2,B3,B4). A cogeneration system consisted of an overheating vapor generator(11) and a vapor turbine(12), a generator(13), and a heat exchanger(14) combined with a condenser are equipped in the auxiliary boiler(B4) among the plurality of the boilers. Exhaust heat generated in the cogeneration system is supplied to the heat exchanger combined with the condenser, provided to consumed places(22) as hot water, and allows the generator to generate electricity.