Refrigerant recovery system

Details Refrigerant recovery system Refrigerant recovery system

1989-08-31

1991-03-12

Tanner, Harry B.

Refrigeration

Automatic control

Withdrawing or adding refrigerant from or to normally closed...

62 85, 62195, F25B 4500

Patent

active

049984136

ABSTRACT:
A refrigerant recovery system has a refrigerant recovery vessel which is connected to a refrigerant-recovered refrigeration circuit. A gaseous refrigerant in the refrigerant-recovered refrigeration system is sucked into the refrigerant recovery vessel due to the difference between the pressure in the refrigerant-recovered refrigeration circuit and the refrigerant recovery wheel. The refrigerant recovery vessel is cooled by a refrigeration circuit provided in the refrigerant recovery system, so that the sucked gaseous refrigerant is a liquified. to the refrigerant recovery vessel, a recovery tank made of a cartridge type is connected. The liquefied refrigerant from the refrigerant recovery vessel is sent to the tank. When the temperature of the recovery tank is not low enough, the liquefied refrigerant sent into the tank is evaporated and then returns to the refrigerant recovery vessel so that the refrigerant is liquefied in the vessel again. Such processes are repeated so that the temperature of the tank is gradually lowered by the liquified refrigerant sent thereto and hence the liquefied refrigerant is accumulated in the tank.

REFERENCES:
patent: 3145544 (1964-08-01), Weller
patent: 4476688 (1984-10-01), Goddard
patent: 4766733 (1988-08-01), Scuderi

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