Refrigeration – Automatic control – Refrigeration producer
Patent
1992-12-16
1994-02-22
Tapolcai, William E.
Refrigeration
Automatic control
Refrigeration producer
62117, F25B 4104
Patent
active
052877060
ABSTRACT:
An improved refrigeration system is disclosed for chilling a circulating water supply, particularly a supply intended for cooling industrial equipment. The system includes a water container having at least one coiled water tube disposed in the container and positioned in heat-transfer relation with respect to at least one coiled refrigerant-conducting passage external to the water tube(s). A pump circulates water through the water tube(s) in a direction opposite the flow of refrigerant through the adjacent refrigerant-conducting passage(s). The refrigerant circulating system includes two circuits, the first of which connects the outlet of the condenser-compressor to the inlet of the coiled refrigerant-conducting passage(s), and the second of which includes a subcooling condenser tube disposed within the body of water in the container and interposed between the condenser/compressor and the inlet of the refrigerant-conducting passage(s). A plurality of thermostatically-controlled valves are provided to selectively divert refrigerant from the first circuit to the second circuit when ambient temperatures exceed a predetermined level so that refrigerant will be pre-cooled in the subcooling condenser to increase the efficiency of the refrigeration system.
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