Ground temperature energy storage and exchange device and construction method thereof

Abstract

The invention relates to a ground temperature energy storage and exchange device which comprises a ground temperature energy storage and exchange device underground part, a first flow guide pipe, a second flow guide pipe and a third flow guide pipe, wherein the ground temperature energy storage and exchange device underground part is buried underground; the first flow guide pipe and the second flow guide pipe are connected between the ground temperature energy storage and exchange device underground part and a water inlet of a building cold and warm circulation system respectively; the third flow guide pipe is connected to the ground temperature energy storage and exchange device underground part and a water outlet of the building cold and warm circulation system; a circulating medium circularly flows between the building cold and warm circulation system and the ground temperature energy storage and exchange device underground part; and the ground temperature energy storage and exchange device can switch between a refrigeration state and a heating state. The ground temperature energy storage and exchange device provided by the invention provides a clean, environmentally-friendly and high-efficiency deep geothermal energy development and utilization mode and is designed into an inner and outer pipe structure, so that a circulating medium heat exchange area is formed between the outer pipe and each flow guide pipe and high heat exchange efficiency is achieved.

Description

technical field [0001] The invention relates to the field of development and utilization of mid-deep geothermal energy, and more specifically relates to a geothermal energy storage exchange device capable of efficiently and environmentally friendly utilization of mid-deep geothermal energy, heating buildings and taking cooling into consideration, and a construction method thereof. Background technique [0002] Studies have shown that the earth, formed 4.6 billion years ago, has accumulated abundant energy in its interior during the long evolution process, and its core temperature is as high as 6880°C, which is more than a thousand degrees higher than the 5500°C on the surface of the sun. 90% of the earth's volume is above 1000°C, and 99% is above 100°C. Volcanic eruptions let humans directly feel the great power of its energy. [0003] According to drilling and measurement data, the temperature below 20 meters on the surface is no longer affected by solar radiation, and the ...

AI Technical Summary

Problems solved by technology

However, the existing technology has not been able to get rid of the way of obtaining geothermal energy by pumping groundwater. With the increasing scarcity of groundwater resources and the rapid increase of groundwater pollution, such a way of obtaining geothermal energy by pumping groundwater has been more and more restricted. more

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