Heat pump for extracting soil energy

Abstract

A ground source heat pump system includes a geothermal energy collecting equipment, an energy exalting equipment and a radiator connected in series. The geothermal energy collecting equipment includes a circuit of a heat collector, a low-grade heat exchanger coil and a pump in series. The energy exalting equipment includes a circuit of an evaporation, two compressors, a condenser and a expansion valve in series, the said two compressors are connected in parallel. The radiator includes a circuit of a energy inputting coil, a pump and several radiation fin in series. A heat exchanger equipment is provided between the energy exalting equipment and the radiator. The fluid inside the geothermal energy collecting equipment and the heat exchanger equipment is antifreeze. The system of the invention has a simple structure, which is easily to install and maintain, and can work normally in any case.

Description

technical field [0001] The invention relates to a heat pump system for extracting soil energy, in particular to a heat pump system suitable for extracting soil energy in various environments. It converts low-grade heat energy into high-grade heat energy through an energy raising device to achieve winter heating, The purpose of cooling in summer and daily supply of domestic hot water. Background technique [0002] The Chinese invention patent No. ZL01116085.3, which was previously applied by the applicant of the present invention, provides a kind of air-conditioning system that utilizes geothermal energy as an energy source, is pollution-free, and occupies a small area. When the ambient temperature is low, the heating requirements are often not met, and sometimes the evaporator freezes, resulting in interruption of heating, so that the system cannot be widely promoted and used. Contents of the invention [0003] In order to overcome the defects in the prior art, the object...

AI Technical Summary

Problems solved by technology

[0002] The Chinese invention patent No. ZL01116085.3, which was previously applied by the applicant of the present invention, provides a kind of air-conditioning system that utilizes geothermal energy as an energy source, is pollution-free, and occupies a small area. When the ambient temperature is low, the heating requirements are often not met, and sometimes the evaporator freezes, resulting in interruption of heating, so that the system cannot be widely promoted and used

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