EXPERIMENTAL STUDY OF THE WORKING ZONE AIR QUALITY OF THE WELDER WORKING IN SEMI-OPEN SPACES OF LIMITED VOLUME

Abstract

The article raises the problem of experimental study of the emission of harmful substances and the heat distribution in the welding process insemi-open spaces for the purpose of subsequent verification of mathematical and computer models. In such production welder often works in the so-called cramped conditions, where there is a rapid increase in the content of harmful substances, working conditions are further worsened by high heat radiation and uncomfortable body position of the welder. The authors measured the concentrations of harmfulsubstances and carbon dioxide produced by oxyacetylene welding, and confirmed their hypothesis of exceeding the sanitary maximum permissible concentration standard (MPC). Similar studies on the temperature of theworking area proved that the welder works under adverse conditions of production microclimate.

Keywords

• тепломассоперенос
• вентиляция
• концентрация
• вредные вещества
• ограниченный объем