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im setting up a fume extractor device for my shop and im looking for some input and advice. Here are the basics ive come up with after doing a little research.i dont plan on filtering the air, just pumping it outsideplan on having hoods over 3 tables, hoods about 5x4 feetpreferably have hoods 5 or 6 feet above the tablesuse a HVAC "squirrel cage blower motor"im not sure on running the piping, should all three tubes come together and then go to the intake on the motor, what size piping, flutes or closeable gates in each one, and figuring out what size/rating blower i need (CFM) and piping diameter to achieve powerful suction divided into 3 hoods. Any leads or information would be great, i am in the process of getting a mesaurement of sq footage of piping as accurately as i can. I can easily change the piping diameter and the total sq footage once i figure out the layout of piping and length.here is a quick diagram of what im thinking
Reply:Consider the heated air you will be sucking out of the building in winter.You might want to consider some overhead flexible fume hoods that can be positioned over the weld at each table, which will capture more of the fumes while removing less of the heated air. Also portable "smoke eaters" either hand carried or on wheeled carts could be effective also. Your plan may be effective in summer when heating is no longer a factor."The reason we are here is that we are not all there"SA 200Idealarc TM 300 300MM 200MM 25130a SpoolgunPrecision Tig 375Invertec V350 ProSC-32 CS 12 Wire FeederOxweld/Purox O/AArcAirHypertherm Powermax 85LN25
Reply:i like the idea of smaller flexible fume hoods, like cones ive seen that u can position right over your work, area is a big problem in our shop that is why we want it to be all overhead, im worried that we will need a crazy big blower to have enough cfm for piping that branches off in 3 directions
Reply:loss of heat needs to be a big consideration. You can install a blast gate or damper of some kind on all of the hoods, then you can shut off the one not needed. That way all three won't be sucking at the same time. You will not hurt the blower by restricting the air intake.Will you have three welders going at once?Dan D.
Reply:Originally Posted by miller mani like the idea of smaller flexible fume hoods, like cones ive seen that u can position right over your work, area is a big problem in our shop that is why we want it to be all overhead, im worried that we will need a crazy big blower to have enough cfm for piping that branches off in 3 directions |
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发表于 2021-8-31 23:40:39