A Flashback-Resistant Burner for Use with the Nitrous Oxide-Acetylene Flame

Autor:	V. I. Muscat, M. B. Denton, R. F. Suddendorf
Rok vydání:	1973
Předmět:	Chemistry Nuclear engineering Flow (psychology) Analytical chemistry Nitrous oxide Atomic and Molecular Physics and Optics Analytical Chemistry Volumetric flow rate Flashback chemistry.chemical_compound Acetylene Safe operation medicine Combustor Emission spectrum medicine.symptom Spectroscopy
Zdroj:	Spectroscopy Letters. 6:563-567
ISSN:	1532-2289 0038-7010
DOI:	10.1080/00387017308060845
Popis:	The use of the high-temperature nitrous oxide-acetylene flame both in atomic absorption and emission spectroscopy can be hazardous. In particular, the high burning velocity of this gas mixture can cause serious flashback when supported on the conventional slot-type burner. For safe operation of the N2O-C2H2 flame on a slot burner, it is necessary to maintain a high total gas issuing velocity. Commonly, burner start-up procedures require initially lighting a less flashbackprone mixture—and then switching over to nitrous oxide. Often differential flow controllers are employed so that the change over can be accomplished smoothly. However, in conventional burners, if the proper flow rates are not maintained during this change over and during subsequent operation, a rather violent flashback can occur.
Databáze:	OpenAIRE
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