Dry-heat rock heat exchange device capable of achieving local secondary heat exchange

Abstract

The invention relates to a dry-heat rock heat exchange device capable of achieving local secondary heat exchange. The heat exchange device comprises a heat insulation tube, a water supply tube, a spray nozzle, a spray nozzle joint, a spray room, a diffuser, a water return tube and a water collector, wherein the water supply tube, the spray nozzle, the spray room and the diffuser are sequentially arranged in the heat insulation tube from top to bottom; the heat collector communicates with the heat insulation tube, and is arranged on the bottom of the heat insulation tube; the spray nozzle is positioned in the spray nozzle joint; the water supply tube communicates with the spray nozzle; the upper part of the spray room is connected to the spray nozzle joint; the lower part of the spray roomis connected to the upper part of the diffuser; the lower part of the diffuser communicates with the water collector; and the bottom of the water collector is provided with a water return tube which communicates with the water collector. The dry-heat rock heat exchange device is simple in structure, is economical and reasonable, is safe and reliable, is environmentally friendly, is wide in population prospect, is high in heat exchange efficiency, and is good in thermal insulation.

Description

technical field [0001] The invention belongs to the technical field of dry hot rock heat exchange, and in particular relates to a hot dry rock heat exchange device capable of local secondary heat exchange. Background technique [0002] Hot dry rock is a new type of energy, which exists thousands of meters below the ground, with a temperature greater than 180°C, and its thermal energy can be utilized under the current technical and economic conditions. The global terrestrial hot dry rock resources are equivalent to 49.5 million tons of standard coal, which is 30 times the energy contained in all oil, natural gas and coal in the world. my country's hot dry rock resources are widely distributed in the Qinghai-Tibet Plateau, Songliao Basin, Bohai Bay Basin, southeast coast and other places. The energy contained in the 3000-10000m land hot dry rock resources is equivalent to 8.56 million tons of standard coal, accounting for about 17% of the world's resources. %, the development ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of low heat exchange efficiency and low water temperature at the outlet of the existing hot dry rock heat exchange technology, the present invention provides a heat dry rock heat exchange device capable of partial secondary heat exchange

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