GEOTHERMAL POWER GENERATION SYSTEM
To provide a geothermal power generation system capable of eliminating a reduction water pump or suppressing the power consumption of the reduction water pump, and preventing precipitation of silica or the like.SOLUTION: A geothermal power generation system 1 separates geothermal fluid collected fro...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a geothermal power generation system capable of eliminating a reduction water pump or suppressing the power consumption of the reduction water pump, and preventing precipitation of silica or the like.SOLUTION: A geothermal power generation system 1 separates geothermal fluid collected from a production well into steam and hot water by a steam separator 3, and drives a turbine 7 using the thermal energy of the separated steam and hot water to generate power; and returns the hot water as reduction water to a reduction well, where a steam injector 27 is provided in a reduction water line 25 that returns the reduction water to the reduction well. The geothermal power generation system is configured to introduce part of the steam separated by the steam separator 3 and the reduction water into the steam injector 27, and raise the temperature and pressure of the reduction water to return it to the reduction well.SELECTED DRAWING: Figure 1
【課題】還元水ポンプを不要あるいは還元水ポンプの電力消費量を抑制し、かつシリカ等の析出を防止できる地熱発電システムを提供する。【解決手段】本発明に係る地熱発電システム1は、生産井から採取された地熱流体を気水分離器3で水蒸気と熱水に気水分離し、分離された水蒸気及び熱水の熱エネルギーを用いてタービン7を駆動して発電すると共に、前記熱水を還元水として還元井に戻すものであって、前記還元水を還元井へ戻す還元水ライン25に蒸気インジェクタ27を設け、蒸気インジェクタ27に気水分離器3で分離された水蒸気の一部と、前記還元水を導入して、該還元水の温度と圧力を上昇させて還元井に戻すようにしたことを特徴とするものである。【選択図】 図1 |
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