Portable welding smoke collector design considerations

Design considerations for mobile welding smoke collector (1) portable welding smoke dust collector in order to effectively control and capture or harmful gas, in the case of does not interfere with the operation, should as far as possible may make external exhaust hood cover mouth near the dust, in order to make all the dust control is within the scope of the wind speed. (2) cover mouth shape size should be based on principles of effective control of pollution sources and does not affect the operation, as long as conditions allow, cover flange border edges should be added, improve the effect of exhaust. Flange width should not be less than 150 mm, after adding the exhaust air volume can reduce 15% ~ 30%. In addition, the upper gas-collecting hood best against the wall to decorate, or set up around the cover mouth flapper. (3) dust air, should no longer after operation areas, and prevent the disturbance airflow blow it again ( Can be used as adding cap esrtuary wind deflector, etc) , to make the flow process of the shortest, suction hood mouths as soon as possible. (4) the mobile connection weld fume collector cover the pollution of dust suction duct should be placed on or gas distribution center. Cover mouth big body and cover shallow cover airflow can focus displacement to the suction air duct in the middle of mouth, in order to obtain uniform cover mouth airflow, can be used to sew, nozzle before add baffle or use the method of suction duct. (5) in order to ensure the cover mouth to breathe in uniform speed, the expansion of the gas-collecting hood Angle should not be greater than 60 a. When pollution plane size large can take the following measures: to a large exhaust hood divided into several small exhaust hood; Which is set in the enclosure baffle or air distribution plate.
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