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Island artificial porous system geothermal energy electricity and fresh water cogeneration system

A geothermal energy and man-made technology, applied in geothermal energy systems, geothermal power generation, geothermal energy, etc., can solve the problems of large typhoon impact, high cost, poor safety, etc., achieve stable output temperature, avoid salt precipitation, and reduce drainage The effect of temperature

Active Publication Date: 2019-08-13
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the current diesel power generation, wind power, solar power and wave power generation can meet the power needs of the islands to a certain extent, they also face problems such as high cost, poor safety, and strong impact from typhoons.

Method used

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  • Island artificial porous system geothermal energy electricity and fresh water cogeneration system

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Embodiment

[0027] Such as figure 1 As shown, an island man-made porous system geothermal energy desalination cogeneration system includes an artificial porous system 14 arranged in the middle of an underground tight rock layer 11, a geothermal well, a power generation device and a water purification device. The geothermal well runs through the tight rock layer 11 With artificial porous system 14, to make full use of geothermal sources. The geothermal well adopts a metal well wall 9, and the middle part of the geothermal well is provided with an insulating pipe 10. The insulating pipe 10 is made of a PPR pipe. At the wellhead and bottom of the well, the metal well wall 9 is provided with an upper screen 12 and a lower screen 16 at the part of the artificial porous system 14, and the upper screen 12 and the lower screen 16 connect the metal well wall 9 with the artificial porous system 14, Furthermore, the inside of the heat insulating pipe 10 forms a water outlet channel, and the annular...

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Abstract

The invention discloses an island artificial porous system geothermal energy electricity and fresh water cogeneration system. The island artificial porous system geothermal energy electricity and fresh water cogeneration system comprises an artificial porous system, a geothermal well, a power generation device and a water purification device; the artificial porous system is arranged in the middleof an underground dense rock layer; the geothermal well penetrates through the dense rock layer and the artificial porous system; the power generation device comprises a flash tank, a steam turbine and a generator; an inlet of the flash tank is connected with the geothermal well; the water purification device comprises a fresh water tank and a condenser; the steam turbine is connected with a heatmedium inlet of the condenser; the fresh water tank is connected with a heat medium outlet of the condenser; a cold medium inlet of the condenser is connected with a water supply pump; a cold medium outlet of the condenser is divided into two paths; one path is connected with a drainage pipe; and the other path is connected into the geothermal well. Geothermal energy is adopted as a heat source and the output temperature of the geothermal energy is stable; the power generation power of the geothermal single well and the fresh water generating capacity are greatly improved through enhanced heatexchange of an artificial porous system; the island artificial porous system geothermal energy electricity and fresh water cogeneration system can be utilized in most islands; and the power generation and fresh water production can be simultaneously realized.

Description

technical field [0001] The invention relates to the technical field of geothermal energy utilization, in particular to a sea island man-made porous system geothermal energy electricity desalination cogeneration system. Background technique [0002] Many islands in our country are far away from the mainland, and there is an urgent need for electricity and fresh water. Although the current diesel power generation, wind power, solar power and wave power generation can meet the power demand of the islands to a certain extent, they also face problems such as high cost, poor safety, and great impact from typhoons. As a clean and stable energy source, geothermal energy can provide islands with safe and stable electricity and fresh water needs. The geothermal power generation and freshwater cogeneration system can be built underground, which is safe and concealed, not affected by typhoons, and can provide stable power and freshwater output. In view of the fact that some islands do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G4/00F24T10/10
CPCF03G7/04F24T10/10Y02E10/10
Inventor 卜宪标马伟斌龚宇烈
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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