| 摘要 |
PURPOSE:To enhance the thermal efficiency and contrive to save energy by a method wherein at least a part of the exhaust steam discharged from a turbine is utilized for tank heating in a system, in which turbines to produce propulsive force and a turbine to produce power for various works are driven by the steam sent from a boiler. CONSTITUTION:The steam generated at a main boiler 21 is sent and supplied through a superheater 22 to a back pressure type main turbine 23 and an auxiliary turbine 24 and yet a part of the steam extracted from the main turbine 23 is sent to a feed water heater 26. In addition, the major part of the exhaust steam discharged from the main turbine 23 is supplied through a back pressure regulating valve 27 to a tank heater 28 and another inboard heating source 29, while the excess part of said exhaust steam is supplied through a damper valve 30 to a low pressure turbine 31 for propulsion and heating. After that, the steams supplied to said heater 28 and heating source 29 are condensed and liquefied in the respective apparatuses and sent together with the condensate flowed from a condenser 32 to a drain tank 33 and flowed through the feed water heaters 34 and 26 back to the main boiler 21. Similarly, a part of the exhaust steam discharged from the auxiliary turbine 24 is utilized to heat the heater 28 and the heating source 29. |
