Oil Separator
Refrigeration compressors get their lubrication with a small number of special lubricants. This oil is placed inside the crankcase of the compressor housing. It is distributed among different parts of the compressor. In sealed (sealed) system, tliis also the oil lubricates the motor bearings.
When the compressor is running a small amount of oil are pumped out with the hot, compressed pairs. A small amount of oil throughout the system does no harm. Too much oil entering the condenser refrigerant management, evaporator, and filters interfere with their work.
It can be separated from the hot oil, compressed steam. This includes the placement of the oil separator between the compressor and condenser exhaust. The location and functioning of such a separator shown in Fig. 4-12. Separator increases in the illustration to show details.
Oil separator tank or cylinder. It contains a series of partitions, screens, which is going to oil. The oil is separated from the hot, compressed vapor, drops to the bottom of the tank.
Float location of controls the needle valve.
This opens the oil return line into the crankcase of the compressor. When the oil level is high enough, the float rises and opens the needle valve. Pressure in the separator is significantly higher than the pressure in the crankcase of the compressor. This causes the oil to quickly return to the compressor crankcase.
Oil separators are quite effective. Very little oil, transfer into the system. They are most commonly used in large industrial installations.
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