Open AccessSimulation Study on Exhaust Effect of Common Exhaust Equipment in Traditional Electrical Manufacturing Enterprises
Author(s) -
Tao Chen,
Yang Gao,
Cheng Sun,
Sen Liu,
Hongyan Li
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/300/3/032075
Subject(s) - aerospace , airflow , exhaust gas , automotive engineering , fluent , welding , secondary air injection , mechanical engineering , engineering , environmental science , computational fluid dynamics , waste management , aerospace engineering
Based on fully understanding of the setting and operation of local exhaust facilities in traditional electrical manufacturing industry, the software FLUENT is applied to simulate the airflow field of universal arm exhaust hood in the process of removing welding dust. And the exhaust effect of typical welding dust universal arm exhaust hood and its influencing factors were analyzed. The results show that the exhaust effect of welding fume is mainly affected by the exhaust wind speed, the size of the hood, the angle between the hood and airflow, the distance from the pollutant source to the center of the hood, etc. When practical operation is feasible, the best combination of exhaust effect and economy is achieved when the vertical upward suction is adopted and the cover opening is 20-25cm away from the solder joint and the exhaust velocity is controlled at 0.4-0.6m/s.