Single well hot dry rock thermal energy extraction system

An extraction system and hot dry rock technology, applied in the field of single well hot dry rock heat energy extraction system, can solve the problems that the heat of dry hot rock is not easy to extract, and the heat energy extraction and utilization of dry hot rock has not been widely used, so as to ensure stable operation Effect

Active Publication Date: 2019-03-22
东晨干热岩热力有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, limited by technology, the heat of dry hot rocks is not easy to extract, so the extraction and utilization of hot dry rock heat energy has not been widely used.

Method used

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  • Single well hot dry rock thermal energy extraction system
  • Single well hot dry rock thermal energy extraction system
  • Single well hot dry rock thermal energy extraction system

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] refer to figure 1 , the single-well hot dry rock thermal energy extraction system of the present invention includes a casing 2 arranged in a deep well 1 in a dry hot rock formation, the bottom end of the casing 2 is closed, and an inner bottom of the casing 2 is provided with an in-well heat exchanger 3. The bottom is filled with water, and the heat exchanger 3 in the well is submerged in the water.

[0033] The top of the well heat exchanger 3 is provided with a medium inlet pipe 311 and a medium outlet pipe 312. The medium outlet pipe 312 is connected to the primary side inlet of the grou...

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Abstract

The invention discloses a heat energy extraction system of single well hot dry rock. The heat energy extraction system comprises sleeves arranged in a hot dry rock stratum deep well. The bottom ends of the sleeves are closed; an in-well heat exchanger is arranged at the bottoms in the sleeves; the bottoms in the sleeves are filled with water; the in-well heat exchanger is submerged in the water; a medium inlet pipe and a medium outlet pipe are arranged at the top end of the in-well heat exchanger; the medium outlet pipe is connected to an inlet of the primary side of a ground heat exchanger, and an outlet of the primary side of the ground heat exchanger passes through a high-pressure pump and is connected to the medium inlet pipe; and the secondary side of the ground heat exchanger is connected with ground heat energy utilization equipment. The heat energy extraction system of the single well hot dry rock can effectively extract and utilize heat energy in the hot dry rock.

Description

technical field [0001] The invention relates to the technical field of hot dry rock thermal energy utilization, in particular to a single-well hot dry rock thermal energy extraction system. Background technique [0002] Geothermal heat energy is an inexhaustible renewable energy source. With the development of science and technology, the use of geothermal heat energy as a heat source for heating and power generation has become a development trend. For example, the use of heat pump systems that use geothermal heat energy has been developed in recent years. The hot dry rock buried at 2,000 meters to 10,000 meters underground is a high-temperature rock mass with no fluid or only a small amount of fluid inside. Its temperature is tens to hundreds of degrees Celsius, and it contains huge heat energy. It is a clean of renewable energy. However, limited by technology, the heat of hot dry rocks is not easy to extract. Therefore, the extraction and utilization of heat energy from h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24T10/13
CPCF24T10/13F24T2010/50Y02E10/10
Inventor 王效勇王翔宇李振函刘国爱张建民李继明王东锡景跃
Owner 东晨干热岩热力有限公司
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