Chiller or heat pump with falling film evaporator and horizontal oil separator

摘要

A refrigerant circuit that uses a vapor compression cycle and can be used for air conditioning, cooling, or heat pump purposes. This circuit includes a lubricated compressor connected to an oil separator vessel separate from the compressor, a falling film or hybrid falling film evaporator, and a condenser. The oil separator container extends in a substantially horizontal direction. The oil separator vessel is separated into a primary space and a secondary space by a filter pad configured to substantially remove entrained oil droplets of about 5 μm or more from the refrigerant entering the oil separator vessel. The The primary space is fluidly connected to the compressor outlet. The secondary space is in fluid communication with the condenser inlet. The circuit has an oil entrained flow outlet for the lubricant from the compressor at least about 2 percent by mass relative to the refrigerant flow. [Selection] Figure 4