Aspiration unit for conditioning air during rail car...

A - Human Necessities – 61 – L

Patent

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Details

A61L 9/20 (2006.01) B61D 5/00 (2006.01) B61D 27/00 (2006.01)

Patent

CA 2078954

A rail car unloading aspiration unit includes a rail car nozzle for providing air conduits for feeding conditioned air to the rail car and for withdrawing air therefrom, ambient air being drawn between a weather shield, hood or cover and a fan chamber mounted on a heating chamber which forces ambient air to pass through a filter and be heated within the range of approximately 77°F - 95°F. The heated air is passed in proximity to ultra violet lamps after which the air is directed into the rail car nozzle and expelled into the interior of the rail car head surface above the product being unloaded. During the time that power is applied to the aspiration unit, the fan forces air to be drawn into the unit and conditioned, and the ultra violet lamps remain on. However, the heaters are selectively activated or deactivated as a function of the temperature of the incoming air in order to maintain the temperature of the air within the desired ranged prior to being exposed to the ultra violet lamps.

Bloc de déchargement d'un wagon par aspiration comprenant une buse d'aspiration comportant des conduits d'air pour alimenter le wagon en air conditionné et pour en retirer l'air ambiant. L'air ambiant est extrait entre un écran, un couvercle ou un capot contre les intempéries et un logement de soufflante monté sur un compartiment de chauffage qui force l'air ambiant à passer dans un filtre et à être chauffée à des températures variant entre 77 F et 95 F. L'air chauffé passe à proximité de lampes ultraviolettes, à la suite de quoi il est dirigé dans la buse et expulsé dans le haut du wagon au-dessus des produits déchargés. Pendant que l'unité d'aspiration est sous tension, le ventilateur force la pénétration et le conditionnement de l'air dans l'unité, et les lampes ultraviolettes restent allumées. Cependant, les réchauffeurs d'air sont sélectivement activés ou désactivés en fonction de la température de l'air entrant, afin de maintenir la température de l'air dans une plage choisie avant de l'exposer aux lampes ultraviolettes.

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