A flow control method and apparatus

F - Mech Eng,Light,Heat,Weapons – 15 – D

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F15D 1/04 (2006.01) B01D 53/86 (2006.01)

Patent

CA 2709533

The disclosure relates to air pollution control, and specifically to an apparatus for redirecting fluid flow in a plenum to improve flow performance and, therefore, improved air pollution control, especially in selective catalytic NO x reduction. The apparatus employs an array of flat blades mounted at an angle with respect to the inlet (upstream) fluid flow, such that the blades are titled with respect to that flow and correspondingly redirect the flow in a desired direction. The apparatus, which can also referred to as a 'GSG' or 'graduated straightening grid,' has a range of applications, and offers a number of performance, structural, and economic advantages in large-scale applications.

L'invention concerne la régulation de la pollution aérienne, et spécialement un appareil pour rediriger l'écoulement de fluide dans un plénum pour améliorer la performance d'écoulement et par conséquent améliorer la régulation de la pollution aérienne, notamment dans le domaine de la réduction catalytique sélective des NOx. L'appareil emploie un réseau de lames plates montées selon un angle par rapport à l'écoulement de fluide d'entrée (amont), de sorte que les lames sont inclinées par rapport à cet écoulement et redirigent en correspondance l'écoulement dans une direction souhaitée. L'appareil, qui peut également être désigné par = GSG = ou = grille de redressement graduée =, présente une plage d'applications et offre un certain nombre de performances, d'avantages structurels et économiques dans des applications à grande échelle.

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