Carbon monoxide detection apparatus and method

Details Carbon monoxide detection apparatus and method Carbon monoxide detection apparatus and method

1976-06-18

1977-06-21

Reese, Robert M.

Chemistry: physical processes

Physical processes

Crystallization

23254E, 73 23, G01N 3106, G01N 3110

Patent

active

040308871

ABSTRACT:
A carbon monoxide removing catalytic material is disposed in one end of a first hollow column having open ends while porous inactive material is disposed in one end of a similar second column to offer substantially the same resistance to air flow as the catalytic material. There is a bed of regenerable air-drying substance in each column between the other material therein and the opposite end of the column. The volume and resistance to air flow of the two beds is substantially the same. Valve means connect an air stream with said opposite end of the first column and simultaneously connect said end of the second column with the atmosphere. Conduit means connect the other ends of the columns with each other, with an outlet port between the columns connected with the inlet of a pressure regulator. The valve means can be reversed periodically to reverse the direction of air flow through the columns, with only part of the air stream that enters the conduit means from either column flowing to the regulator while the rest of the stream flows in reverse direction through the other column to dry the air-drying bed therein. The outlet of the pressure regulator is connected to a carbon monoxide detector, which in turn is connected with means for indicating the amount of carbon monoxide detected every time the air flow to the detector comes from said second column.

REFERENCES:
patent: 2916358 (1959-12-01), Valentine et al.
patent: 3300282 (1967-01-01), Risk et al.
patent: 3311835 (1963-11-01), Jenkins
patent: 3871827 (1975-03-01), Seiler et al.

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