Geothermal heating system - has heating water return pipes to heating station condensers and evaporators

摘要

The system utilises a primary station at the borehole connected to a number of secondary stations at the various points to be heated, by water feed and return pipes. Each secondary station has a heat pump (15) with an evaporator (16) and a condenser (17). The heating circuit water return pipe (14) is connected on the one hand to the evaporator inlet and on the other to the condenser inlet, while the evaporator outlet is connected to the water return pipe to the primary station. The condenser outlet is connected to the hot water pipe from the primary station, which is connected to the hot water supply pipe to the heating circuit.