Device in spray booths for e.g. spray-painting

Details Device in spray booths for e.g. spray-painting Device in spray booths for e.g. spray-painting

B - Operations, Transporting

05

C

32/70

B05C 15/00 (2006.01) B05B 15/12 (2006.01)

Patent

CA 1110444

DEVICE IN SPRAY BOOTHS FOR E.G. SPRAY-PAINTING. ABSTRACT OF THE INVENTION The invention relates to spray booths intended for spraying or painting of articles and designed to be passed by a stream of atmospheric air admitted through inlet ducts and exhausted through outlet ducts and therebetween forced through a water curtain formed inside the spray booth for separating off paint particles remaining in turbulent movement in the air after ejection from a spray gun operat- ing in the interior of said spray booth. To improve economy in the operation of the spray booth it is desirable to bring about heat exchange between the exhaust air and the incoming atmospheric air. However, due to excessive cooling of the exhaust air with its high moisture content and low temperature after passage through the water curtain by the heat exchange with the admitted atmospheric air of low temperature especially during the cooled season there is a great risk of ice precipitation in, and clogging of, the air passegeways in the exchanger. This risk is eliminated according to the invention, by coordination of the operation of the spray gun with periodical interruption of the action of the water curtain. - 1 -

306130

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