Method of utilizing underground thermal energy

A heat energy and hot water technology, applied in the high-efficiency field, can solve the problems of expensive drilling costs, low flow resistance, and the inability to popularize geothermal water resources in large quantities, and achieve the effects of avoiding drilling costs, improving work efficiency, and controlling high temperature hazards.

Inactive Publication Date: 2014-07-09
QINGDAO TECHNOLOGICAL UNIVERSITY
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Problems solved by technology

The use of geothermal water requires the search and detection of underground water and hot rocks, and expensive drilling costs. This is why geothermal water resources cannot be widely promoted. How to ensure that the permeability of hot rocks remains high value, the flow resistance of water remains low, which is also a problem

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  • Method of utilizing underground thermal energy

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Embodiment Construction

[0014] In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below with reference to the drawings and embodiments.

[0015] like figure 1 As shown, in the method of utilizing underground thermal energy disclosed by the present invention, the high-pressure water pump fractures the hot rock 1 deep underground in the mine, so that the rock mass has cracks with good seepage effect, and the crack outlets finally converge in the designed roadway 3, and the mine The roadway is converted into a well for drilling hot water, and a hot water recovery warehouse is built near the exit of the crack (for example, about 12 meters away from the exit), and the ground cold water is injected into the crack from the cold water well 2, and the cold water flows through seepage in the hot rock. Absorb the heat energy of the hot rock mass, turn it into hot water and flow into the underground hot water tank, and then draw the hot...

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Abstract

The invention discloses a method of utilizing underground thermal energy. The method includes that thermal rocks under a mining deep well are crushed through a high-pressure water pump, so that a rock mass is enabled to have cracks good in seepage effect; crack outlets are finally converged in a designed roadway, a thermal-water recycling bin is established nearby the crack outlets, and cold water on the ground is injected into the cracks and flows through seepage in the thermal rocks to absorb the thermal energy of the thermal rock mass and turn into the thermal water to flow into a underground thermal water bin; the mine roadway is transformed and utilized to become a laneway for well drilling to take the thermal water, the thermal water is absorbed from the thermal water bin to the ground to be utilized, and the problems about obsession and drilling expenses of the thermal rock survey technology; after utilization of the thermal water energy is completed, and the thermal water energy is subjected to sedimentation basin treatment and then is injected into the thermal rocks to absorb geothermy to be recycled once again. Inexhaustible clean energy can be obtained with little investment; meanwhile, underground high-temperature harm can be effectively controlled by absorbing the thermal water into the ground, and working efficiency can be greatly improved.

Description

technical field [0001] The invention relates to utilization of hot rocks, in particular to a method for utilizing underground thermal energy of mines with high efficiency and low cost. Background technique [0002] Geothermal water in underground mines is a valuable fresh water resource and thermal resource. In order to obtain more hot water and save more resources, it is necessary to extract and utilize the geothermal water that occurs during mining. The use of geothermal water requires the search and detection of underground water and hot rocks, and expensive drilling costs. This is why geothermal water resources cannot be widely promoted. How to ensure that the permeability of hot rocks remains high value, the flow resistance of water remains low, which is also a problem. Contents of the invention [0003] In view of this, the technical problem to be solved by the present invention is to provide an efficient and low-cost method for utilizing underground heat energy in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J3/08
CPCY02E10/10
Inventor 张永亮梁晓春王冬梅陈喜山魏金丽逄桦鹏
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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