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).

Abstract: An improved refrigeration system, and particularly the thermal exchanger therefor, for use in chilling a circulating water supply for industrial equipment. The system includes a water container having a plurality of thermal exchangers therein, each exchanger including a coiled refrigerant tube, a first water tube extending coaxially through the refrigerant tube, and a second water tube helically wound about the refrigerant tube. The inlet of the helical water tube communicates with the outlet of the coaxial water tube, and the flow of refrigerant in the coaxial refrigerant and water tubes is in opposite directions. The helical water tube has an outlet which discharges cool water into the container near the inlet end of the refrigerant tube.

Abstract: An improved refrigeration system for chilling a circulating water supply for reuse in cooling industrial equipment. The system includes a water container having therein a coiled refrigerant tube and a coiled water tube. The coiled refrigerant tube has a plurality of turns normally positioned below the level of water in the container with the coiled water tube being generally positioned within the coiled refrigerant tube in coaxial relationship. Water inlet means is provided adjacent one end of the coiled water tube through which water from the industrial equipment may flow into the water tube and water outlet means is provided adjacent the other end of the coiled water tube from which water from the water tube may flow into the container.