Hybrid heat pump system

Abstract

The present invention relates to a hybrid heat pump system and a method for controlling the same complexly using geothermal heat and air heat to perform cooling and heating with cool and hot water. The hybrid heat pump system comprises: a geothermal heat pump system supplying heat to a load; an air heat pump system supplying heat to the load; and a control unit controlling the heat supplied to the load. The geothermal heat pump system comprises: a geothermal exchanger; a geothermal heat pump device; a geothermal pipe; and a geothermal heat pump pipe. The air heat pump system comprises: an air heater; an air heat pump device; and an air heat pump pipe. A buffer thermal storage tank comprises an air heater pipe and heats an air introduced to the air heater.

Description

technical field [0001] The invention relates to a hybrid heat pump system for combined utilization of ground heat and air heat. More specifically, in a cooling and heating system using hot and cold water, the cold outside air flowing into the air heat pump is heated by the hot water formed in the geothermal heat pump or the hot water in the heat storage tank, thereby improving the heating efficiency. Hybrid heat pump system that improves thermal efficiency and prevents reduction in heating performance and failure of air-to-air heat pumps. Background technique [0002] Basically, in the heat pump system, the discharge port of the compressor, the condenser, the pressurizing valve, the evaporator and the suction part of the compressor are connected in sequence through the conduit, and the following cycle is performed, so that the high temperature and high pressure compressed by the compressor The refrigerant gas is condensed in the condenser, and the heat of condensation is ex...

AI Technical Summary

Problems solved by technology

[0005] However, geothermal heat pumps vary depending on the type of geothermal heat exchanger, but in the case of the most widely used vertical airtight type geothermal heat pump, it is necessary to drill holes in the ground more than 150m, so there is a problem that the initial investment cost is large, and, In order to absorb the required heat source, it is necessary to dig a plurality of boreholes, which requires a wider site, so there are problems in construction area, cost and construction time.

[0006] Also, in the case of an air-to-air heat pump, it is necessary to absorb heat from the cold outside air in winter to evaporate the refrigerant, so the performance of the heat pump system is greatly reduced, and many failures also occur

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