Geothermal heat extraction device

An extraction device and geothermal technology, applied in the field of geothermal development, can solve problems such as energy consumption and ineffective heat storage

Active Publication Date: 2020-07-07
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The geothermal extraction device in the related art must be powered by a pumping device, which consumes extra energy and cannot store heat effectively

Method used

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] Embodiments of the present disclosure provide a geothermal extraction device, such as figure 1 with figure 2 As shown, the geothermal extraction device includes heat insulating oil pipe 1, casing pipe 2, one-way valve group 3, four-way joint 4, reducing joint 5, circulation box 6, three-way joint 7, first temperature control solenoid valve 8, second temperature control solenoid valve control solenoid valve 9, thermal flow control valve 10, surface heat exchanger 11 and bellows 12, the upper end of the casing 2 is fixedly connected to the lower end of the four-way 4, the upper end of the four-way 4 is fixedly connected to the large-diameter end of the reducing joint 5, and the casing 2 The bottom is blocked. The heat insulatin...

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Abstract

The invention relates to a geothermal heat extraction device and belongs to the technical field of geothermal heat development. The geothermal heat extraction device comprises a heat insulation oil pipe 1, a sleeve pipe 2, a one-way valve set 3, a four-way joint 4, a reducing joint 5, a circulating tank 6, a T joint 7, a first temperature control solenoid valve 8, a second temperature control solenoid valve 9, a thermal flow control valve 10, a ground surface heat exchanger 11 and a corrugated pipe 12. The sleeve pipe 2 is fixedly connected with the lower end of the four-way joint 4. The upperend of the four-way joint 4 is fixedly connected with the big-diameter end of the reducing joint 5. The heat insulation oil pipe 1 is fixedly connected with the small-diameter end of the reducing joint 5. The first horizontal end of the four-way joint 4 is fixedly connected with the first temperature control solenoid valve 8. The second horizontal end of the four-way joint 4 is fixedly connectedwith the first end of the T joint 7. The second end of the T joint 7 is fixedly connected with the second temperature control solenoid valve 9. The third end of the T joint 7 is fixedly connected withthe first end of the thermal flow control valve 10. The second end of the thermal flow control valve 10 is connected with the first end of a return pipe of the ground surface heat exchanger 11. The second end of the return pipe communicates with the circulating tank 6.

Description

technical field [0001] The invention relates to the technical field of geothermal development, in particular to a geothermal extraction device. Background technique [0002] As a renewable energy source, geothermal energy has good economic and social benefits. At present, the direct development and utilization of geothermal fluids through artificial drilling is the main body of current geothermal exploration and development. [0003] The geothermal extraction device in the related art is mainly composed of a swabbing device, a delivery pipeline and a heat exchanger. After the well is drilled and completed, the delivery pipeline is lowered into the well, and the power of the swabbing device is used to pass the geothermal fluid through the delivery pipeline to the heat exchanger, and the heat is extracted through the heat exchanger. At the same time, in order to reduce the impact on groundwater resources and geothermal resources, corresponding recharge wells can be drilled t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24T10/17
CPCY02E10/10
Inventor 蒋斌勇侯新伟郭成云程启忠张豪李永华李建林
Owner PETROCHINA CO LTD
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