Geothermal power plant with intermediate superheating and simultaneous generation of thermal and electrical energy

摘要

A geothermal power device including typically a volcanic plug basalt rock geothermal heat exchange unit and a source of a high temperature thermal energy source connected to a gas generator vessel and passing through and through interior space of the generator vessel through isolated flow high pressure conduits surrounded by liquid sodium in communication with a separate high pressure conduit passing through the vessel having ammonia flowing therethrough in isolation from the sodium, and the ammonia carrying conduit being connected to feed a high pressure turbine, effluent from the high pressure turbine in a gaseous state being fed to an intermediate superheater with relatively high pressure coils extending through superheater interior space also containing liquid sodium and also having a high pressure conduit passing therethrough connected to the geothermal energy source, superheated ammonia from the intermediate superheater being fed to a low pressure turbine followed by a condenser and a liquid pump returning liquid ammonia to the ammonia high pressure conduit of the gas generator, the outlet of the geothermal heat source conduit of the intermediate superheater being connected to a heat exchanger for extraction of residual heat, and thereafter the heat exchanger-cooled geothermal source liquid being returned to the geothermal energy source.