Extraction and storage of pressurized fluent materials

Details Extraction and storage of pressurized fluent materials Extraction and storage of pressurized fluent materials

1994-10-19

1997-04-29

Sollecito, John M.

Refrigeration

Processes

Assembling, charging, or repairing of refrigeration producer

62 502, 62292, 165169, F25B 4500

Patent

active

056238320

ABSTRACT:
Extraction of a fluent material from a pressurized system containing same such as CFC for reclamation is effected into a container by reducing the temperature of the container to a sufficiently cold temperature to generate a vacuum within the container sufficient to extract the CFC from the system to be extracted. The container is cooled by placing the container into an insulated drum containing a glycol bath within which is provided an evaporator duct shaped with a plurality of separate duct portions lying in horizontal planes and spaced vertically with each portion interconnected to the next by a vertical section of the duct. Into the duct is injected carbon dioxide from a compressed liquid supply which is passed through a metering orifice tuned to the length and shape of the duct so that evaporation takes place by the end of the duct. Any liquid remaining at the end of the duct as the temperature cools is returned by a diverter valve into the gylcol bath for additional cooling effect.

REFERENCES:
patent: 5101637 (1992-04-01), Daily
patent: 5189881 (1993-03-01), Miles

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