F - Mech Eng,Light,Heat,Weapons – 23 – C
Patent
F - Mech Eng,Light,Heat,Weapons
23
C
F23C 10/20 (2006.01) B01J 8/18 (2006.01) B01J 8/24 (2006.01)
Patent
CA 2561844
The present invention relates to a grid nozzle. A nozzle in accordance with the present invention is used advantageously in heat engineering to bring fluidizing gas to a furnace of a fluidized bed boiler. According to a most preferred embodiment, said nozzles are used for removing from a furnace solid particles drifted to the bottom of the furnace. It is typical to the grid nozzle in accordance with the present invention that it comprises a nozzle chamber (6) and a nozzle channel (8, 10) ending to a blow opening of the nozzle, which nozzle chamber and nozzle channel are limited from above by a lid (12) and a protecting cover (22, 32) attached outside the lid (12).
La présente invention porte sur une buse à grille utilisée de façon avantageuse en génie climatique afin d'amener un gaz de fluidisation dans le four d'une chaudière à lit fluidisé. Selon un mode de mise en oeuvre idéal, ces buses sont utilisées pour retirer d'un four des particules solides dirigées vers le fond du four. La buse à grille de l'invention comprend notamment une chambre (6) et un canal (8, 10) aboutissant à un orifice de soufflage de la buse, la chambre et le canal étant délimités par le dessus par un premier couvercle (12) et un couvercle de protection (22, 32) fixé à l'extérieur du premier couvercle (12).
Lehtonen Pekka
Makkonen Pasi
Soininen Riku
Foster Wheeler Energia Oy
Gowling Lafleur Henderson Llp
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