Refrigeration system with installed acid contamination indicator

Details Refrigeration system with installed acid contamination indicator Refrigeration system with installed acid contamination indicator

1993-10-05

1995-01-03

Wayner, William E.

Refrigeration

With indicator or tester

Condition sensing

116206, 436 61, G01K 1300

Patent

active

053774965

ABSTRACT:
An improved vapor compression refrigeration system that has an indicator for detecting the presence of acid contamination in the refrigerant contained in the system. The indicator is permanently or semipermanently installed so that continuous monitoring of the refrigerant for acid is possible. The indicator is located in a portion of the system where the refrigerant is always in a gaseous state. In a preferred embodiment, the indicator is located in a bypass line between the suction and the discharge of the system compressor. The indicator preferably shows the presence of acid by a color change, visible from a point external to the indicator, in an indicator bed in the indicator. The color change may be either permanent or the indicator bed may return to its original color when the acid contamination is no longer present in the refrigerant.

REFERENCES:
patent: 3084658 (1963-04-01), Schell
patent: 4923806 (1990-05-01), Klowdowski
patent: 5071768 (1991-12-01), Klowdowski
patent: 5127433 (1992-07-01), Argyle et al.

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