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Geothermal heat exchanger, liquid transport pipe, liquid raising pipe, geothermal power generation facility, and geothermal power generation method
Geothermal heat exchanger, liquid transport pipe, liquid raising pipe, geothermal power generation facility, and geothermal power generation method
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机译:地热热交换器,液体输送管,集液管,地热发电设备及地热发电方法
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摘要
Provided is a geothermal heat exchanger capable of reducing the removal of heat by a non-geothermal zone when carrying hot water heated deep underground to the ground, while providing high thermal efficiency.A geothermal heat exchanger (100) according to the present invention is characterized by having: a liquid transport pipe (10) provided with a liquid lowering pipe (11) to which pressurized heat-exchange liquid is supplied, and a liquid raising pipe (12) disposed on the inside or outside of the liquid lowering pipe (11) and in which the heat-exchange liquid that has been lowered to a geothermal zone is moved from below, the liquid raising pipe being configured to cause the heat-exchange liquid, which comprises hot water produced by the supply of heat from the geothermal zone, to rise in a no vapor-containing state; and an outer heat-insulating layer (30) on the outside of the liquid transport pipe (10) in a part or all of the interval between the ground side to the geothermal zone.
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