Welding Exhaust Hood Design. The welding fumes travel to the extraction hood capture area due to thermal uplift. In general for an exhaust hood to be efficient.
Hoods generally remove the fumes and contaminated air through ducting and exhaust the contaminants to the outdoors. The Modular Extraction Hood is a reliable and practical solution to contain and extract welding cutting arc gouging and grinding fume from the work environment. Potential hazardous and polluting applications requires special solutions.
These robust hood sallow for an uninterrupted welding process and eliminate repositioning as required with fume arms.
Hoods should be placed as near as practical to the work and should provide effective air flow with a velocity of 100 linear feet 30 meters per minute at its most remote distance from the point of welding. For this reason the airflow volume has to be designed so that the entire thermal flow is captured. It contains or refers to information on air contaminants found in the welding fumes principles of systems design and selection and drawings that illustrate ventilation techniques. Exterior hoods are placed next to the point where contaminants are generated without creating an enclosure.