Underground energy storage and ground source heat pump type air conditioning integrated system

Abstract

The invention relates to an underground energy storage and ground source heat pump type air conditioning integrated system. The system comprises a load unit, a heat pump unit, a heat collecting unit and a buried pipe heat exchange unit; the heat pump unit is equipped with a compressor, an evaporator, a throttling valve and a condenser; the output end and the input end of the load unit form a first circulating loop with a valve V1 and a valve V2 through a first pipeline; the output end and the input end of the load unit form a second circulating loop with a valve V5 and a valve V6 through a second pipeline; the output end and the input end of the buried pipe heat exchange unit form a third circulating loop with a valve V3 and a valve V4 through a third pipeline; the output end and the input end of the buried pipe heat exchange unit form a fourth circulating loop with a valve V7 and a valve 8 through a fourth pipeline; the input end and the output end of the heat collecting unit are respectively communicated with the output end and the input end of the buried pipe heat exchange unit through a fifth pipeline to form a fifth circulating loop. The system has the advantages of being convenient to operate, safe, reliable, stable to run, and high in energy efficiency ratio.

Description

technical field [0001] The invention relates to the field of ground source heat pump air conditioners, in particular to an integrated application system of vertical hole underground energy storage and buried pipe ground source heat pump. Background technique [0002] In recent years, ground source heat pump air-conditioning technology has developed rapidly and is widely used in the construction field based on the urgent requirements of energy conservation and environmental pollution avoidance. At present, the use area of ​​ground source heat pump air conditioning system in civil buildings in my country has exceeded 140 million square meters, and it is increasing at a rate of 20% to 25% every year. The application scale of ground source heat pump air conditioning system has also changed from small and medium single buildings to large ones. Development of a residential complex of buildings. [0003] The ground source heat pump air conditioning system mainly uses the shallow ro...

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Problems solved by technology

And the experimental results show that after the temperature of the shallow rock and soil layer is greatly reduced, the recovery of the soil thermal environment will take a long time. The larger the scale of the ground source heat pump air conditioning system, the more difficult it is to recover the thermal environment.

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