Paint Booth Questions

[rooster57]

PRESSURIZED SYSTEMS
In pressurized systems an air replacement system consisting of a fan and maybe a heater system adds
replacement air directly to the booth in lieu of drawing the air thru a filter door. These systems are
difficult to balance, but once the fundamentals are understood the balancing is very simple. Let us look at
a system that is incorrectly balanced (Figure 3).
In this system, more air enters the booth than is allowed to leave. When the air systems are first turned
on, the suction from the exhaust tries to evacuate the room, but in time the surplus air builds up pressure
in the middle of the booth causing a cloud to form. Air is a compressible fluid and will just bunch up at
the point of interference. This cloud is invisible until the painter starts his painting operation. Then the air
is colored with paint and the cloud is very visible (See Figure 3).

 

[rooster57]

I hope this isnt what caused the melt down. The Tulsa Technology Center has a booth just like this one Made by aerospace coatings. This was the reasoning behind my earlier comments. Just because you havent heared of it doesnt mean it doesnt exsist. It has a supply air and an exhaust air both filtered and monitored for air intake temp and air quality . Sometimes their are more than one kind of technology out there. If what i posted caused some hypertention i apologize. Tim

 

[rooster57]

Paint Booth Technology

[SIZE=-2]Posted 3/10/2003[/SIZE]
[SIZE=-1]By Charles Wilhite [/SIZE]

Early paint booths had large fans in one end and a few filters in the other. In these cross-flow booths, air would rush into the booth and slow down as it spread out flowing across the booth, allowing any particles in the air stream to fall out. Because the air was pulled into the booth, any leaks at the doors allowed contaminants to be pulled in. Modern down-draft booths are "pressurized", so any leaks are going out of the booth. "Large masses of air are supplied" through filters in the ceiling and drawn out at the floor. The larger the filter area in the ceiling, the slower the air is moving when it enters the paint environment. It must speed up to move around the vehicle. This causes particles in the air stream to stay there and any loose particles to get caught up and carried away.

 

[Ted Brown]

Well kiss my arsh and call me Martha... hehe New fangled booths probably cost a ton.. great if you have access to one.. so us down home boys, will use a water hose and a calm day, early AM usually, and get the job done with little problems and as little wind as possable... works for me.. hehe :lol: You got it Rick...

 

[rooster57]

No point to prove just sharing knowledge here.

 

[Ted Brown]

No point to prove just sharing knowledge here.

That is always a good thing, to share knowledge, I get myself into much hot water sharing my own knowledge, as that is not offical stuff I guess, just tried and proven over the years and miles, but, I learn everyday, the more I know how little I know.. hehe :lol:

 

[jmr122848]

Hey Rick, Welcome back!
Fred too (different tread)!