Title:
GEOTHERMAL POWER GENERATION APPARATUS AND METHOD FOR USING ULTRAHIGH-PRESSURE HOT WATER IN GEOTHERMAL POWER GENERATION
Document Type and Number:
WIPO Patent Application WO/2011/101964
Kind Code:
A1
Abstract:
Provided are a geothermal power generation apparatus using ultrahigh-pressure hot water and a method for using ultrahigh-pressure hot water in geothermal power generation, wherein ultrahigh-pressure ground water such as fossil seawater can be used, and a general-purpose pump can be used as a return pump for returning the water that has been used for power generation into the ground. The geothermal power generation apparatus has a production well for retrieving geothermal water from the earth, power-generating facilities for retrieving electric energy from the geothermal water by driving a turbine using the thermal energy of the geothermal water, a return pump for increasing the pressure of the geothermal water from which the thermal energy has been removed, and a return well for returning the geothermal water having a pressure increased by the return pump into the earth. A power retrieving turbine for retrieving energy of the geothermal water and reducing the pressure of the geothermal water is provided on a passage of the geothermal water, said passage extending from the production well to the power generation facilities, so that the pressure of the geothermal water is reduced to 7 MPa or less by the power retrieving turbine, and the energy retrieved by the power retrieving turbine is used as a part of driving power for driving the return pump.
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Inventors:
FUJII KIYOTAKA (JP)
YOKOHAMA YOSHIYUKI (JP)
YOKOHAMA YOSHIYUKI (JP)
Application Number:
PCT/JP2010/052412
Publication Date:
August 25, 2011
Filing Date:
February 18, 2010
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
FUJII KIYOTAKA (JP)
YOKOHAMA YOSHIYUKI (JP)
FUJII KIYOTAKA (JP)
YOKOHAMA YOSHIYUKI (JP)
International Classes:
F01K25/10; F01K21/00; F03G4/00
Foreign References:
| JP2010007601A | 2010-01-14 | |||
| JP2000064945A | 2000-03-03 | |||
| JPS55123304A | 1980-09-22 |
Attorney, Agent or Firm:
TAKAHASHI, MATSUMOTO & PARTNERS INTELLECTUAL PROPERTY CORP. (JP)
Patent business corporation Takahashi 松本 & partners (JP)
Patent business corporation Takahashi 松本 & partners (JP)
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Claims: