Refrigeration – Automatic control – Refrigeration producer
Patent
1994-05-10
1995-01-03
Sollecito, John M.
Refrigeration
Automatic control
Refrigeration producer
62475, 62292, 62 85, F25B 4304
Patent
active
053774990
ABSTRACT:
A method and apparatus for reclaiming refrigerant are described to include a bypass line for hot gas is coupled to a distillation liquid temperature control, which controls the temperature of the system to remain at a very low temperature setting in order to prevent moisture carry-over, and maintain an exact liquid level. The distillation chamber itself contains a heat exchange system and comprises an outlet subsystem for distilled refrigerant, as well as an inlet for contaminated refrigerant. Vapor forms above the liquid in the chamber which is discharged into a compressor, which feeds back hot gases through a helical coil arrangement immersed in the distillation chamber. The compressor alternatively bypasses the helical coil under the control of the temperature controller. In either event, either from the bypass or from the coil a small air cooled dispenser dissipates heat from the compressor work. The system is thus devoid of the usual air or water cooled condensers to condense the refrigerant and/or external electrical heaters.
REFERENCES:
patent: 3145543 (1964-08-01), Miner
patent: 4539817 (1985-09-01), Staggs
patent: 4646527 (1987-03-01), Taylor
patent: 4766733 (1988-08-01), Scuderi
patent: 4856289 (1989-08-01), Lofland
patent: 5214927 (1993-06-01), Squires
patent: 5243832 (1993-09-01), Van Steenburgh
patent: 5277033 (1994-01-01), Sanford et al.
Hudson Technologies Inc.
Sollecito John M.
Yavner Stanley J.
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