Refrigeration moisture eliminating device and method

Details Refrigeration moisture eliminating device and method Refrigeration moisture eliminating device and method

1985-10-28

1987-08-04

King, Lloyd L.

Refrigeration

Processes

Separating or preventing formation of undesirables

62127, 62149, 62475, F25B 4700

Patent

active

046837248

ABSTRACT:
Described herein is apparatus and a method for eliminating water trapped in a refrigerator system. The apparatus includes means to insert heated, dry gas, such as nitrogen, into the low side valve of the refrigeration system. The gas may be to a temperature between 175 and 220 degrees F. and is inserted until the pressure of the gas within the system is equal to between 35 and 65 PSI. The device includes appropriate temperature and pressure metering means for controlling both the temperature and pressure of the gas inserted. After the heated nitrogen gas is inserted into the refrigeration system, the compressor is turned on and allowed to run for approximately ten minutes and the heated nitrogen gas absorbs any water vapor in the refrigeration system. Thereafter the high side valve is opened and the escaping nitrogen containing the absorbed water escapes from the system. Then the refrigerant is added and when it begins escaping from the open high side valve, the high side valve is closed. In alternate embodiment, a gas feedback path from the high side valve to the input side of the apparatus is provided to speed the heating of the gas.

REFERENCES:
patent: 3357197 (1967-12-01), Massengale
patent: 4110998 (1978-09-01), Owen
patent: 4304102 (1981-12-01), Gray

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