EXTERNAL GROUND HORIZONTAL CONTOUR FOR A HEAT PUMP INSTALLATION Russian patent published in 2018 - IPC F24T10/10 F25B30/02 F24H4/04 

FIELD: instrument engineering.

SUBSTANCE: invention relates to heat pump systems using low temperature soil heat for autonomous heating and hot water supply of premises. External ground circuit for the heat pump system contains a horizontal tubular heat exchanger placed in the ground, connected by pipelines with the heat exchanger-evaporator of the heat pump with the low-temperature heat-transfer agent-brine circulating in it, and also the accumulator of thermal energy, intended for heating the ground. Battery is placed in the ground in the immediate vicinity of the horizontal tubular heat exchanger and is made in the form of two tanks, connected by pipelines into a single circuit, along which the heat transfer fluid circulates. In the first container, the heat transfer fluid is heated from the heater placed in the first container, and the heat transfer fluid from the first vessel flows through the supply lines to the second vessel and returns again through the return lines to the first vessel. In this case, a part of the heat energy of the heat transfer fluid is transferred to the surrounding soil through the walls of the feeders and return pipelines and through the walls of the first and second containers.

EFFECT: technical result is to ensure the efficiency of the compression-type HPI with a horizontal ground external circuit by restoring the thermal balance of the soil in the heat exchanger zone of the external ground contour.

13 cl, 6 dwg