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US 4,393,666 AGranted
Balanced heat exchange assembly
OwnerDoyle A. Revisinventor
Life of this patent
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Abstract
A heat exchange assembly for reclaiming heat energy from the refrigerant of an air conditioning system comprises a plurality of tube-in-tube heat-exchange coils each adapted to receive the refrigerant and the flow of water through respective tubes in counterflow for heat exchange therebetween. Inlet and outlet manifold pipes connect the coils to the refrigerant circulation circuit and said manifold pipes have graduations of internal cross-sectional area to ensure substantially equal rates of flow of refrigerant through each coil.
Claims1
A heat exchange assembly for reclaiming heat from the refrigerant of an air conditioning system comprising:
- a water circulation means;
- a refrigerant circulation means;
- a plurality of tube-in-tube heat exchange coils connected in parallel in the refrigerant and water circulation means to receive refrigerant in one tube and water in the other for heat exchange therebetween;
- and
- means for ensuring a substantially equal rate of flow of refrigerant through each of the heat exchange coils, said means includes a refrigerant-in manifold pipe connecting the upstream end of the refrigerant tube of each of the coils to the refrigerant circulation circuit and a refrigerant-out manifold pipe connecting the downstream end of the refrigerant tube of each coil to the refrigerant circulation circuit, said inlet manifold pipe having successive decreases of cross-sectional area downstream of each said upstream end connection and said outlet manifold pipe having successive increases of cross-sectional area upstream of each said downstream end connection.
2 more elements
Dependencies are inferred from the claim text.