Ground source heat exchanger with super-cooling device

Abstract

The invention relates to a vertical underground heat exchange system which is suitable for a ground source air conditioner and is provided with a super-cooling device. The vertical underground heat exchange system comprises a heat conduction part and a super-cooling part, wherein the heat conduction part consists of a liquid guiding pipe, a three-way valve, a liquid inlet pipe, a liquid pump, a liquid outlet pipe, an air guiding pipe, a liquid sprinkling annular pipe, an underground heat conduction pipe and certain heat conduction accessories; in the heat conduction part, the lower end of theunderground heat conduction pipe extends into an underground constant temperature layer; the air guiding pipe is connected with the upper part of the underground heat conduction pipe; the liquid outlet pipe is inserted into the underground heat conduction pipe on the lateral side of the air guiding pipe to reach the bottom of the underground heat conduction pipe; the upper end of the liquid outlet pipe is connected with the heat pump; the liquid inlet pipe is inserted from the edge of the upper end of the sealed heat conduction pipe and is connected with the liquid sprinkling annular pipe; the liquid inlet pipe and the liquid outlet pipe converge and are communicated with the liquid guiding pipe on the upper part of the ground by the three-way valve; and the super-cooling part consists ofa super-cooling compressor, a super-cooling pipeline, a super-cooling coil and a throttling capillary. Therefore, the vertical underground heat exchange system which acquires ground source energy by a condensation medium is formed.

Description

Technical field [0001] The invention involves an underground heat exchange device of the ground source air conditioner placed on the ground, especially a vertical underground heat exchange system that is suitable for the cold device for the ground source air conditioner. Background technique [0002] With the development of science and technology and the continuous improvement of people's living standards, people's requirements for environmental comfort are getting higher and higher, and the proportion of the energy consumption required for heating and cooling the energy consumption is increasing in the total energy consumption.Due to the increase in fuel usage, environmental pollution is increased globally.Now reasonable use of too useful energy, land source energy, and other renewable energy has become an inevitable choice. [0003] At present, the use of land source air conditioners in the field of air conditioning is mainly divided into two ways: soil source air conditioning ...

AI Technical Summary

Problems solved by technology

The underground system of the soil source air conditioner needs to drill holes on the ground, and install a U-shaped closed heat exchanger in the holes to absorb energy from the surrounding soil. Because the heat transfer effect between the pipeline and the soil is not good, many holes need to be drilled, and the initial investment It is very high, but the efficiency is also low; although the underground system of groundwater source heat pump air conditioner has high efficiency, it needs to pump groundwater, which will have an irreversible impact on the hydrogeology of groundwater, and can only be used when the groundwater is sufficient and can be recharged smoothly the region

The use of both types of geothermal energy has certain limitations

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