Arrangement for monitoring the concentration of potentially expl

Details Arrangement for monitoring the concentration of potentially expl Arrangement for monitoring the concentration of potentially expl

1980-09-08

1982-11-30

Tokar, Michael J.

Electricity: measuring and testing

Using ionization effects

For analysis of gas, vapor, or particles of matter

422 54, G01N 2700

Patent

active

043618103

ABSTRACT:
An arrangement for monitoring the concentration of potentially explosive substances in gas streams includes a first flame-ionizer and a second flame-ionizer, both ionizers being accommodated in a common chamber which is maintained at a predetermined temperature, such as 180.degree. C. A common conduit for supplying both ionizers with a fuel gas is provided in the arrangement. A common conduit for feeding both ionizers with combustion air is mounted in the arrangement. Each ionizer is provided with an individual conduit connecting the assigned ionizer with a respective drying chamber of a coating installation. A sample gas stream discharged from the respective drying chamber is fed into the assigned ionizer through a capillary pipe and passed through a flame produced in each ionizer. The electric current flowing between the electrodes in each ionizer shows the concentration of potentially explosive substance in gas streams being tested. The test data obtained in this arrangement are not affected by varying temperatures in the testing equipment.

REFERENCES:
patent: 3425806 (1969-02-01), Karmen
patent: 3852037 (1974-12-01), Kolb

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