Compressor oil removal in ammonia refrigeration system

Details Compressor oil removal in ammonia refrigeration system Compressor oil removal in ammonia refrigeration system

2006-08-01

2006-08-01

Tapolcai, William E. (Department: 3744)

Refrigeration

Processes

Lubricant handling

C062S193000, C062S470000, C073S053050

Reexamination Certificate

active

07082774

ABSTRACT:
Automatic oil removal from an ammonia evaporator/low pressure vessel in a refrigeration system is disclosed. A liquid refrigerant level controller is utilized to drain the oil. The controller works under the principle of fluid thermal conductivity. Oil having lower thermal conductivity as compared to liquid ammonia, activates the probe which in turn opens the valve to drain the oil accumulated in a trap of an evaporator or a low pressure vessel.

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Sporlan Valve Company, Level Master Control, Bulletin 60-15, Sep. 1990, St. Louis, MO 63143.

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