EXHAUST HEAT RECOVERY STEAM TURBINE TYPE ENERGY SYSTEM

摘要

PURPOSE:To remarkably increase output by taking exhaust heat recovered with an exhaust heat recovery boiler and heat from a heat storage tank in Rankine cycle, and supplying these heat to a steam turbine as driving energy source. CONSTITUTION:At midnight time band, respective exhaust heat due to operation of a steam compressor 4 and a heat pump 2 at night are recovered and accumulated in a heat storage tank 5. Condensed water Q6 sent to a heat exchanger 6 is heated by heat Q7 taken from the heat exchanger 6 through heat resistant oil, and saturated steam Q8 is sent to an exhaust heat recovery boiler 7 from the heat exchanger 6. The temperature of saturated steam Q8 is raised by high temperature exhaust heat Q7 in the exhaust heat recovery boiler 7, and super heated steam Q10 suitable for the inlet condition of a turbine is generated and sent to a steam turbine 8. In this way, exhaust heat is recovered and taken in operation cycle, and energy efficiency can be remarkably improved.