Ground source heat pump system device

The invention relates to the technical field of heating ventilation air conditioning, in particular to a ground source heat pump system device which comprises a plurality of heat pump units. Each heat pump unit is mounted with a condenser and an evaporator. The ground source heat pump system device is characterized in that a water inlet of the heat pump unit is connected with a water inlet pipe, a water outlet of the heat pump unit is connected with a water outlet pipe, the water inlet pipe is communicated with a return water pipe of an air conditioning system via an air circulating pump and communicated with a water supply pipe of a heat source system via a heat source circulating pump, and the water outlet pipe is communicated with a water supply pipe of the air conditioning system and a return water pipe of the heat source system. When the ground source heat pump system device is in use, functions of the system can be switched conveniently by switching valves. When only a single function is required, the ground source heat pump system can be simplified to obtain a simplified device. In the ground source heat pump system device, heat pump units are combined in parallel connection manner and can be switched and be standby for each other, thus the ground source heat pump system has the advantages of improved reliability, simplicity, multiple functions and convenience in operation.