Heat transfer system with compressor - has an after cooler with circuits for heating system and a recirculating system

摘要

The cooling medium of the heat transfer system which emerges from the compressor is condensed in a water cooled condenser and subsequently cooled in an after cooler. The condenser has two separate water circuits, connected to a heating system and the second one to the cooling water system. The after cooler is separated from the condenser and connected to the second circuit pump and to the second circuit. A three way valve is controlled in relation to the pressure of the coolant circuit. The first outlet of this valve is connected with a hypass of the condenser and the second outlet is connected with the inlet of the second circuit condenser. The pump of the second circuit continues to operate also in case of full energy absorption and only the flow rate is reduced in case of low ambient temperature so that the liquid coolant leaving the condenser is after cooled as far as possible.