Novel geothermal energy efficient heat exchange device

Abstract

The invention discloses a novel geothermal energy efficient heat exchange device. The device comprises a heat conduction shell, a heat exchange box, a water-gas dual-purpose circulating pump, and an expansion valve, wherein a first heat exchange pipe is arranged in the heat conduction shell, a second heat exchange pipe is arranged in the heat exchange box, the water outlet end of the second heat exchange pipe is connected with the water inlet end of the first heat exchange pipe through a conduit, the inlet end of the expansion valve is connected with the water outlet end of the first heat exchange pipe, and the outlet end of the expansion valve is connected with a water inlet of the water-gas dual-purpose circulating pump through a conveying pipe. According to the novel geothermal energy efficient heat exchange device, the heat conduction shell can be buffered and protected, so that the service life of the heat conduction shell is prolonged, the heat exchange efficiency is guaranteed,the temperature of cooling liquid in the first heat exchange pipe can be rapidly reduced, and the burst of the conveying pipe is avoided; and the speed of the heat exchange between the second heat exchange pipe and a heat exchange medium in the heat exchange box can be increased by arranging heat conduction fins of wavy structures on the outer wall of the second heat exchange pipe, and the heat exchange efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of heat exchange devices, in particular to a novel high-efficiency heat exchange device for geothermal energy. Background technique [0002] At present, in the development and utilization of geothermal energy, it is mainly obtained by directly mining and extracting resources such as hot and high-temperature water, water vapor, and hot dry rock deep in the formation. Although it can meet the needs of geothermal resource collection, in actual It was found in the geothermal energy collection operation that in the current collection method, due to the direct extraction of hot and high-temperature water and water vapor, it is very easy to cause serious pollution to geothermal resources by impurities such as sediment in hot and high-temperature water and water vapor. It even leads to the blockage of geothermal resource collection pipelines, which seriously affects the efficiency and quality of geothermal resource ...

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Problems solved by technology

[0002] At present, in the development and utilization of geothermal energy, it is mainly obtained by directly mining and extracting resources such as hot and high-temperature water, water vapor, and hot dry rock deep in the formation. Although it can meet the needs of geothermal resource collection, in actual It was found in the geothermal energy collection operation that in the current collection method, due to the direct extraction of hot and high-temperature water and water vapor, it is very easy to cause serious pollution to geothermal resources by impurities such as sediment in hot and high-temperature water and water vapor. It even leads to the blockage of geothermal resource collection pipelines, which seriously affects the efficiency and quality of geothermal resource collection operations. At the same time, it needs to be equipped with a large number of auxiliary equipment such as filtering equipment, which also leads to increased geothermal resource collection costs and daily equipment maintenance costs. At the same time, due to the direct mining of resources such as hot and high-temperature water, water vapor, and hot dry rock, it is very easy to cause hollow areas in the deep underground, resulting in unstable geological structures, poor bearing capacity, and even geological subsidence in severe cases Secondary geological disasters, such as secondary geological disasters, have great potential safety hazards and have a great impact on the construction of surface structures such as roads and buildings.

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