METHOD OF REGULATION OF THE GEOTHERMAL HEAT PUMP SYSTEM AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2018 - IPC F24D11/02 

FIELD: pumps.

SUBSTANCE: geothermal heat pump system belongs to the field of energy-saving heat and cooling supply using non-traditional renewable energy sources, in this case - the warmth of the soil massif. Method of regulating a geothermal heat pump system, system for collecting low-potential ground heat, consisting of two or more zones, connected in parallel to the heat pump equipment, each of which in turn includes one or more sealed ground heat exchangers, the method of connecting the zones being carried out depending on the thermal state of the area of the soil massif of the corresponding zone. All zones of the low-potential ground heat collection system operate in parallel, and the regulation of the operation mode of each zone of ground heat exchangers is carried out by changing the coolant flow rate depending on its temperature. Coolant pipelines from the ground heat exchangers of each of the zones are withdrawn into a single geothermal well and combined by prefabricated collectors, and the well of each zone is connected to the evaporator of the heat pump by direct and return pipelines, with a temperature sensor installed in the direct pipeline, and in the opposite direction - an electronical control valve, and both are connected to the control controller. This allows parallel operation of the zones without creating an undesirable temperature gradient in the soil massif.

EFFECT: parallel operation of the zones allows the entire heat exchanger surface of the ground heat exchanger to be used.

2 cl, 1 dwg