Apparatus and methods for capturing vapors exiting a material storage compartment of a vessel

摘要

A temporary hood for capturing vapors exiting from a material storage compartment of a vessel when the compartment is opened includes a base frame that extends around an opening to the compartment and is releasably secured to the vessel. An upper framework is releasably coupled to the base frame and extends upwardly from the vessel around the opening. A plurality of panels is releasably engageable with the upper framework and form an enclosure around the opening. At least one vapor discharge outlet fluidly communicates with the material storage compartment and a vacuum pump to allow the capture of vapors exiting from the opening when the cover is opened and the temporary hood is engaged with the vessel.

主权项

1. A temporary hood for capturing vapors exiting from a material storage compartment of a vessel when the compartment is opened, the vessel having an opening into the top of the material storage compartment and a cover for covering and uncovering the opening, the temporary hood comprising:
a base frame configured to extend around the opening and be releasably secured to the vessel; an upper framework configured to be releasably coupled to said base frame and extend upwardly from the vessel around the opening; at least one releasable connector configured to connect said upper framework and said base frame; a plurality of planar panels releasably engageable with said upper framework, said panels arranged and adapted to act as walls around the opening to enclose the opening when said panels are engaged with said upper framework; an opener operatively associated with at least one of said plurality of panels to open the cover after the temporary hood is installed onto the vessel; and at least one vapor discharge outlet associated with at least one of said panels, said vapor discharge outlet configured to fluidly communicate with the material storage compartment of the vessel and a vacuum pump to allow the capture of vapors exiting from the opening when the cover is opened and the temporary hood is engaged with the vessel.