Are you thinking about installing a weld fume collecting system in your shop? Ambient systems have several advantages that ducted systems don’t, so they’re worth considering, but there are a few common misunderstandings to keep in mind before making a final decision:
Airflow Patterns May Be Anticipated With Ease:
The fact is that just because you want air to flow in a specific way doesn’t mean it will.
You Can Use A Pull Pattern To Force Air:
Circular or racing track air patterning systems are rarely as successful as they appear on paper. Air exhaust can be hurled considerably, but pulling air across even a short distance is very hard. Until air exits a duct thirty diameters away, it retains around 10% of the exhaust velocity. Still, air entering a chimney only moves at 10% of the input velocity when it comes within about one diameter of the duct.
It Makes No Difference Where The Inlet Is Located:
There are no precise industrial ventilation requirements for welding fume collection, but here is a common observation. Due to the heat generated during welding, weld fumes tend to climb until it reaches the height of any stagnant air layer in the plant. This smoke forms a blanket of lingering and concentrated stench. The form and temperature of the plant ceiling and the existence and effect of all the disrupting air currents in the plant influence the height of this thick layer.
Weld Fumes Collection Protects Plant Employees.
Ambient collection tactics appear to be a fantastic approach to keep fume concentrations low and minimize overexposure; however, they are a dilution ventilation strategy. Contaminants flow through the employees’ breathing zone when diluted by plant air in ambient collecting procedures. The collector system removes pollutants at a pace that keeps contaminant concentrations in the plant from rising. Still, fumes travel through the employees’ breathing zone before being entirely diluted, posing a risk of overexposure.
Weld Fumes techniques can have certain advantages, but you must be aware of their limits and use them only when purchasing for your facility’s needs. Consider a mix of source and ambient collection and personal protective equipment (PPE) to address worker overexposure and facility cleaning. Before obtaining a weld fume for your facility, contact an expert like RoboVent.