| 摘要 |
A manifold is disclosed which prevents vapors created on the interior of a coater booth or the like from escaping into the atmosphere through openings into or out of the booth. The manifold comprises a hollow annular chamber situated around an opening and having apertures or holes through the smaller, radially inner wall. A baffle disposed interiorly of the manifold creates an air flow passage therein which extends in a type of spiraling manner from the holes in the radially inner walls, in a downwardly direction then around and under the radially inner wall, and then in an upwardly direction to an exhaust port for the vapors. A liquid spray nozzle spraying a precipitant downward in the downwardly extending portion of the vapor flow passage creates a vacuum which draws the vapors into the manifold through the holes in the radially inner wall, scrubs the vapors and causes the vapors to be expelled through the exhaust port where they can be controllably disposed of. A drain in the lower portion of the manifold allows the liquid precipitant to be disposed of.
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