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PROMOTION METHOD OF GEOTHERMAL HEAT EXTRACTION AND GEOTHERMAL HEAT EXTRACTION PROMOTION TYPE CLOSED LOOP CIRCULATION GEOTHERMAL POWER GENERATION SYSTEM
PROMOTION METHOD OF GEOTHERMAL HEAT EXTRACTION AND GEOTHERMAL HEAT EXTRACTION PROMOTION TYPE CLOSED LOOP CIRCULATION GEOTHERMAL POWER GENERATION SYSTEM
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机译：地热传热促进方法及地热传热促进型闭环循环地热发电系统
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摘要
PROBLEM TO BE SOLVED: To provide a promotion method of geothermal heat extraction capable of stably extracting much geothermal heat for a long term, and a closed loop circulation type geothermal power generation system applying the geothermal heat extraction promotion method.SOLUTION: A hot-dry rock 1 or the inside of a high temperature stratum is fractured by hydraulic pressure to form a fracture 14, and then a heat conduction promotion proppant 14 is mixed to support the fracture 14. Also, a geothermal heat transfer path is constituted by press-fit penetration of a heat conduction promotion proppant 15 in the fracture 14. After that, a heat exchange promotion porous body 10 constituted of a heat resisting material with high thermal conductivity or a geothermal heat extraction promotion heat exchanger 3 having an aggregate of multiple heat exchange plates is inserted to make it adhere with a geothermal heat transfer path. Accordingly, a geothermal heat extraction area is increased, and the heat conduction of the geothermal heat from the hot-dry rock 1 or the inside of the high temperature stratum to the geothermal heat extraction heat exchanger 3 is improved, and thereby the geothermal heat extraction and the heat exchange are promoted.SELECTED DRAWING: Figure 1
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