초록 ▼

A heat recovery system for taking out a mechanical energy from hot exhaust gas from a gas turbine comprises at least two exhaust-gas boiler each having drum of an interior pressure different from each other, a steam turbine, a generator driven by the steam turbine, steam condenser and a plurality of

A heat recovery system for taking out a mechanical energy from hot exhaust gas from a gas turbine comprises at least two exhaust-gas boiler each having drum of an interior pressure different from each other, a steam turbine, a generator driven by the steam turbine, steam condenser and a plurality of heat exchanger. The heat exchanger is disposed in advance of the drum of the respective exhaust-gas boiler so that a feed-water circulating through the heat recovery system is pre-heated before entering into each drum by means of a cooling water which is used to cool blades of the gas turbine and becomes very hot.

대표청구항 ▼

A heat recovery system associated with a gas turbine in which stator blades thereof are cooled by a cooling medium, said system comprising: high pressure boiler means for generating high pressure steam by exhaust heat energy from said gas turbine; low pressure boiler means for generating low pressur

A heat recovery system associated with a gas turbine in which stator blades thereof are cooled by a cooling medium, said system comprising: high pressure boiler means for generating high pressure steam by exhaust heat energy from said gas turbine; low pressure boiler means for generating low pressure steam by exhaust heat energy from said gas turbine; a steam turbine driven by the steam from both of said boiler means; means for condensing exhaust steam from said steam turbine into condensation; means for supplying both of said boiler means with said condensation as feed water; heat exchanger means provided upstream, respectively, of said high pressure boiler means and said low pressure boiler means with respect to a direction of flow of said condensation; and means for circulating the cooling medium from said gas turbine first through the heat exchanger means associated with said high pressure boiler means, then through the heat exchanger means associated with said low pressure boiler means, and finally through said stator blades.