Refrigeration – Refrigeration producer – With lubricant handling means
Patent
1995-03-09
1996-11-05
Sollecito, John M.
Refrigeration
Refrigeration producer
With lubricant handling means
62475, 62292, F25B 4302
Patent
active
055705901
ABSTRACT:
An apparatus for reclaiming and purifying used refrigerant is comprised of a purification unit having a suction inlet for gaseous refrigerant and an outlet for fluid refrigerant. The suction inlet is connected through a suction accumulator in which remnants of oil are precipitated from the refrigerant and collected at the bottom of the accumulator. The outlet is connected to a collector tank for partially purified liquid refrigerant, an upper end portion of the collector tank is connected to the atmosphere through controllable means for blowing off non-condensable gases precipitated from the received liquid refrigerant. Means are provided for condensing out remnants of refrigerant from the blown-off gas from the collector tank before the gas is released to the atmosphere. An outlet in the bottom of the suction accumulator is connected to a separate underlying oil reservoir in which the precipitated oil, extracted from the used refrigerant in the oil separator, is collected. The reservoir is equipped with heater for heating the collected oil in the oil reservoir so as to boil out any refrigerant remaining therein, without heating of the oil in the oil separator.
REFERENCES:
patent: 3777509 (1973-12-01), Muench
patent: 4169356 (1979-10-01), Kingham
patent: 4304102 (1981-12-01), Gray
patent: 5078756 (1992-01-01), Major et al.
patent: 5377501 (1995-01-01), Munston
Crandall Thomas L.
Hansen Eigil
Strout Donald W.
A'Gramkow A/S
Sollecito John M.
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