Gas and liquid contact apparatus – Contact devices – Atomizer type
Reexamination Certificate
2006-12-14
2011-10-11
Chiesa, Richard L (Department: 1776)
Gas and liquid contact apparatus
Contact devices
Atomizer type
C239S461000, C261S111000, C261S115000, C422S228000
Reexamination Certificate
active
08033531
ABSTRACT:
An apparatus for mixing a liquid with a large gas stream flowing in a gas duct, especially for introducing reducing agent into flue gas containing nitrogen oxides. At least one metering lance having at least two atomizer nozzles supplies liquid to the gas stream, with the nozzles being inclined relative to the direction of flow of the gas stream and being inclined in opposite directions relative to one another. At least one disk-shaped mixer element is associated with and spaced from the nozzles, and is inclined relative to the direction of flow of the gas stream. Flow eddies form at the mixer element, and at least a portion of the liquid enters the flow eddies. Atomization is effected in such a way by the mixer element that volatilized gaseous portions in the nozzle streams exiting the nozzles enter the flow eddies, while non-volatized droplet portions, due to their inertia and an atomizer angle, do not enter the flow eddies in the vicinity of the mixer element.
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Führer durch die Strömungslehre, Fig. 4.41, 1990.
Beckmann Gerd
Priesmeier Ulrich
Becker Robert
Chiesa Richard L
Fisia Babcock Environment GmbH
Robert Becker & Associates
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