High-efficiency dry hot rock technology and heat pump coupling heating system

A technology that couples heat pumps and heating systems. It is applied in heating systems, heat pumps, and geothermal energy. It can solve the problems of ground source heat pump efficiency decline and dry hot rock heating system heating efficiency. It achieves high cost performance and small floor space. , The effect of reducing drilling costs

Active Publication Date: 2018-06-15
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0007] In order to solve the problems of the low heating efficiency of the hot dry rock heating system and the year-by-year decline in the efficiency of the ground source heat pump, the invention effectively combines the hot dry rock mining technology with the heat pump technology, and provides a high-efficiency hot dry rock technology coupled heat pump heating system

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  • High-efficiency dry hot rock technology and heat pump coupling heating system

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Embodiment Construction

[0025] refer to figure 1 To further elaborate the present invention, a high-efficiency hot dry rock technology coupled heat pump heating system includes a hot dry rock geothermal system 12 installed underground and a heat pump system 11 installed on the surface. The hot dry rock geothermal system 12 is connected with a plate heat The exchanger group 5 and the plate heat exchanger group 5 are connected with a heat pump system 11 , and the heat pump system 11 is connected with a terminal heating system 10 .

[0026] Among them, the hot dry rock geothermal system located underground needs to be transformed before it can be formed and used. The formation process is as follows: first, a horizontal well is drilled as the water injection well 3, and the vertical depth of the water injection well 3 relative to the surface is about 2000 meters. The length is about 2,000 meters; further, multi-fracture segmental hydraulic fracturing is performed in the water injection well 3, and a prop...

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Abstract

The invention relates to the technical field of hot dry rock heat energy utilization, in particular to a high-efficiency dry hot rock technology and heat pump coupling heating system. The problems that the heating efficiency of a dry hot rock heating system is low and the efficiency of a ground source heat pump is reduced due to long-term operation are solved. The system comprises a dry hot rock heating system arranged under the ground and a heat pump system arranged on the ground surface; the dry hot rock heating system is connected with a plate heat exchanger set which is connected with theheat pump system; and the heat pump system is connected with a terminal heating system. In the long run, the heating system can operate throughout the year, the heat exchange efficiency of the whole system is higher than that of the traditional ground source heat pump, the cost performance is high, and operation is stable and durable.

Description

technical field [0001] The invention relates to the technical field of hot dry rock thermal energy utilization, in particular to a heating system coupled with a high-efficiency hot dry rock technology and a heat pump. Background technique [0002] With the development of the economy and the improvement of people's living standards, energy and environmental issues have increasingly become the subject of human concern. Among them, hot dry rock, as a clean energy buried deep in the ground, has abundant heat, but has been It has not been developed and utilized on a large scale. [0003] At present, domestic mid-deep geothermal energy extraction technology is not mature, and no report on the technology of extracting thermal energy from hot dry rock by artificial fracturing has been found. In the world, the single-cycle method is generally used to obtain geothermal energy, which has defects such as low geothermal energy acquisition rate and utilization rate. At the same time, de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D12/02F25B30/06F24T10/20
CPCF24D12/02F24D2200/11F24D2200/123F25B30/06Y02B30/00
Inventor 郭亮亮张永波安晓红石小虎高晓丽
Owner TAIYUAN UNIV OF TECH
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