초록 ▼

A steam raising apparatus for a gas turbine driven powerplant in which fuel and water are introduced into a heat exchanger at multiple pressures and steam/fuel mixtures are removed from the heat exchanger at multiple pressures, some of which are above the desired pressure for combustion and some of

A steam raising apparatus for a gas turbine driven powerplant in which fuel and water are introduced into a heat exchanger at multiple pressures and steam/fuel mixtures are removed from the heat exchanger at multiple pressures, some of which are above the desired pressure for combustion and some of which are below. The higher pressure flows are reduced in pressure by using them to drive a steam turbine coupled to a steam compressor, and the lower pressure flows are increased in pressure by means of the compressor. The resultant flows are then be combined into a single flow at the required pressure and routed to the combustor. Alternatively, multiple steam jet ejectors forming a thermocompressor assembly are used instead of the steam turbine/steam compressor assembly.

대표청구항 ▼

A steam raising heat exchanging apparatus, comprising: (a) a hot-gas-to-fuel heat exchanger, said heat exchanger including a hot gas inlet and a cool gas outlet, said heat exchanger including a plurality of coil means for receiving fuel and water, said heat exchanger including means for producing mu

A steam raising heat exchanging apparatus, comprising: (a) a hot-gas-to-fuel heat exchanger, said heat exchanger including a hot gas inlet and a cool gas outlet, said heat exchanger including a plurality of coil means for receiving fuel and water, said heat exchanger including means for producing multiple pressure steam/fuel mixtures; (b) pressure increasing means for increasing the pressure of low pressure steam/fuel mixtures produced by said heat exchanger, said pressure increasing means including a steam/fuel inlet coupled to said heat exchanger, said pressure increasing means including a steam/fuel outlet; and (c) pressure reducing means for reducing the pressure of high pressure steam/fuel mixture produced by said heat exchanger, said pressure reducing means including a steam/fuel inlet coupled to said heat exchanger, said pressure reducing means including a steam/fuel outlet coupled to said steam/fuel outlet of said pressure increasing means.