Power plants – Utilizing natural heat – Geothermal
Patent
1974-07-10
1976-02-24
Schwadron, Martin P.
Power plants
Utilizing natural heat
Geothermal
165 45, F03G 702
Patent
active
039396592
ABSTRACT:
A geothermal energy transfer and utilization system abstracts thermal energy stored in hot solute-bearing well water to generate super-heated steam from an injected flow of clean water; the super-heated steam is then used for operating a turbine-driven pump at the well bottom for pumping the hot solute-bearing water at high pressure and always in liquid state to the earth's surface, where it is used by transfer of its heat to a closed-loop vapor generator-turbine-alternator combination for the generation of electrical or other power. Cooled, clean water is regenerated by the surface-located system for re-injection into the deep well and the residual concentrated solute-bearing water is pumped back into the earth. The invention features filter apparatus installed within the well at the location of the vapor generator-turbine-pump apparatus for removal of solid matter from the re-injected water before its use for lubrication of turbine and pump bearings and before conversion into a working fluid for driving the deep well turbine.
REFERENCES:
patent: 2028471 (1936-01-01), Parent et al.
patent: 2637531 (1953-05-01), Davidson
patent: 3757516 (1973-09-01), McCabe
patent: 3777502 (1973-12-01), Michie, III et al.
Burks, Sr. H.
Schwadron Martin P.
Sperry Rand Corporation
Terry Howard P.
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