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Airfoil and Baffle Assemblies that Reduce Airflow Requirements for Fume Hoods and Fume Hoods Incorporating Same
Airfoil and Baffle Assemblies that Reduce Airflow Requirements for Fume Hoods and Fume Hoods Incorporating Same
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机译:翼型和挡板组件,降低了通风橱和装有该通风橱的通风橱的气流要求
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摘要
A fume hood includes a ventilated chamber having an access opening. A first elongated airfoil assembly is attached to an edge portion of a floor that extends from the opening. A sash is slidably mounted at the access opening and a second elongated airfoil assembly is attached to a lower edge of the sash. The first elongated airfoil assembly includes a plurality of elongated vanes in vertically spaced-apart relationship that define air flow channels. The second airfoil assembly includes a pair of elongated vanes in vertically spaced-apart relationship that define air flow channels that extend into the chamber. A baffle assembly is located in front of a rear wall of the chamber and includes a primary panel having a plurality of vertical air-exit slots adjacent a lower edge, and a buffering panel having a plurality of horizontal air-exit slots adjacent an upper portion.
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