Open AccessDEVICES AND VENTILATION PROCESS DURING EXECUTION ELECTRIC WELDING
Author(s) -
Владимир Шаптала,
E. Hukalenko,
Николай Северин,
Yu. M. Gusev
Publication year - 2020
Publication title -
vestnik bgtu im. v.g. šuhova
Language(s) - English
Resource type - Journals
ISSN - 2071-7318
DOI - 10.34031/2071-7318-2020-5-9-21-29
Subject(s) - welding , ventilation (architecture) , suction , automotive engineering , work (physics) , mechanical engineering , process (computing) , environmental science , computer science , engineering , operating system
The main direction of normalizing the parameters of the air during electric welding is proposed to consider the installation of an integrated ventilation system that combines local exhaust ventilation of welder jobs and general ventilation of rooms. In the article using the computer simulation method, the fields of air mobility, its temperature and concentration of harmful impurities are calculated and a comparative analysis of the main types of stationary devices for local exhaust ventilation of electric welding jobs: exhaust umbrellas, welding panels, and suction blowers, as well as the conditions for effective use of rotary suction pumps. Factors affecting the efficiency of their work are identified and combinations of influencing factors that provide the maximum permissible concentration of harmful emissions in the welders' working areas are established. The conditions are determined under which the general exchange effect of local suction is sufficient to maintain indoor concentration at the MPC level. The results obtained can be used to develop engineering methods for calculating and optimizing ventilation devices and systems, as well as to analyze structural and design solutions for ventilation devices in electric welding plants.