| 摘要 |
PURPOSE:To enable a smooth heat recovery from geothermal water by a method wherein a hat recovery is carried out from a circulating silica colloid liquid through an indirect heat exchanging process. CONSTITUTION:A non-processed geothermal water feeding line 1, a merging line 3 between a processed circulation geothermal water return line 2 and a non-processed geothermal water, a feeding line 4 for either a colloidal geothermal water ultrafilter separation device F or a heat exchanger H, a processed geothermal water discharging line 5, a liquid feeding line 6 extending from the ultrafilter separation device F to the heat exchanger H, a processed liquid circulation line 7 branched from the line 2 and a silica colloid recovering line 8 are formed. In order to recover a heat from the geothermal water, a method for providing the heat exchanger H under a combination of a molten silica colloid growth 4, a geothermal water processing method composed of the ultrafilter separation process and a colloid type heat exchanging process are the most efficient method.
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