Flooded compressor with improved oil reclamation

Details Flooded compressor with improved oil reclamation Flooded compressor with improved oil reclamation

1997-11-17

2000-07-04

Nguyen, Hoang

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

Non-working and working fluids intermix in working chamber

184 616, F01C 2104

Patent

active

060829826

ABSTRACT:
Oil reclamation for a flooded screw type compressor is improved by replacing the normal distillation still with a refrigerant vaporizer made from a small diameter pipe conduit and a low temperature heat source such as heat tracing. The system purifies lubricating oil of refrigerant by boiling small batches of collected lubricating oil from the bottom of the chiller. Using a small volume for vaporization of the refrigerant allows a low temperature heat source to effectively vaporize the refrigerant from the circulating lubricating oil without complicated systems for control or pumping. A particular form of the vaporizer is simply a small diameter pipe surrounded by heat tracing tape.

REFERENCES:
patent: 2470655 (1949-05-01), Shaw
patent: 3191854 (1965-06-01), Lowler et al.
patent: 3785755 (1974-01-01), Novak et al.
patent: 4475876 (1984-10-01), Olen
patent: 4968231 (1990-11-01), Zimmern et al.
patent: 5087178 (1992-02-01), Wells
patent: 5433590 (1995-07-01), Klaus et al.

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