초록 ▼

An apparatus for producing power from a geothermal fluid that is a mixture of high pressure steam and brine comprising a separator, a steam turbine coupled to a generator, a steam condenser, the vaporized organic fluid is supplied to a superheater, an organic vapor turbine coupled to a generator, an

An apparatus for producing power from a geothermal fluid that is a mixture of high pressure steam and brine comprising a separator, a steam turbine coupled to a generator, a steam condenser, the vaporized organic fluid is supplied to a superheater, an organic vapor turbine coupled to a generator, an organic vapor condenser. The apparatus further comprises a preheater which preheats the organic condensate and produces a stream of pre-heated organic fluid that is supplied to the steam condenser as well as a stream of cooled steam condensate. A recuperator is provided for transferring heat from the heat depleted organic fluid produced by the organic vapor turbine to organic condensate produced by the organic vapor condenser. The heated organic condensate produced by the recuperator is supplied to the preheater while cooled, heat depleted organic vapor produced by the recuperator is supplied to the organic vapor condenser. The stream of cooled brine is combined with the stream of cooled steam condensate to form a combined stream of diluted cooled brine that is less susceptible to precipitation of minerals.

대표청구항 ▼

[ We claim:] [1.] Apparatus for producing power using a geothermal fluid that is a mixture of high pressure steam and brine, said apparatus comprising;a) a separator for separating said geothermal; fluid into a brine stream and a steam stream;b) a steam turbine coupled to a generator for expanding s

[ We claim:] [1.] Apparatus for producing power using a geothermal fluid that is a mixture of high pressure steam and brine, said apparatus comprising;a) a separator for separating said geothermal; fluid into a brine stream and a steam stream;b) a steam turbine coupled to a generator for expanding said high pressure steam stream thereby driving said generator and producing power, and producing heat depleted steam;c) a steam condenser responsive to a supplied stream of organic fluid and to said heat depleted steam for producing a stream of vaporized organic fluid and a stream of steam condensate;d) a superheater responsive to said brine stream and to said vaporized organic fluid stream for producing a stream of superheated organic vapor and a stream of cooled brine;e) an organic vapor turbine coupled to a generator for expanding said superheated organic vapor thereby driving the last-mentioned generator and producing power, and producing heat depleted organic fluid;f) an organic vapor condenser for condensing said heat depleted organic fluid and producing organic condensate;g) a preheater responsive to said steam condensate and to said organic condensate for producing a stream of pre-heated organic fluid and a stream of cooled steam condensate;h) means for supplying said pre-heated organic fluid to said steam condenser; andi) means for combining said stream of cooled brine with said stream of cooled steam condensate to form a combined stream.