Geothermal energy system heat exchanger and control apparatus

Details Geothermal energy system heat exchanger and control apparatus Geothermal energy system heat exchanger and control apparatus

1974-08-14

1976-06-08

Freeh, William L.

Pumps

Motor driven

Fluid motor

60641, 165 45, 417405, 417408, F04B 1700, F04B 3500, F03G 702, F03G 704

Patent

active

039618668

ABSTRACT:
A geothermal energy transfer and utilization system extracts 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 driving 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 content 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 heat exchanger apparatus located adjacent the turbine-driven pump for permitting steam exhausted by the turbine to cool that part of the re-injected water used as a hydraulic bearing lubricant.

REFERENCES:
patent: 2648353 (1953-08-01), Haworth
patent: 3107046 (1963-10-01), Frankel et al.
patent: 3132426 (1964-05-01), White
patent: 3274769 (1966-09-01), Reynolds
patent: 3471080 (1969-10-01), Gray
patent: 3751673 (1973-08-01), Sprankle
patent: 3817038 (1974-06-01), Paull et al.
patent: 3824793 (1974-07-01), Matthews

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