Dimensionamento de um sistema de exaustão para as células de soldagem do IFPI-Central Teresina

Abstract

Shielded metal arc welding is widely used in both industry and academic environments and is essential for the technical training of students. However, this process generates metallic fumes and toxic gases that pose serious risks to occupational health. In this context, this study proposes the design of a local exhaust ventilation (LEV) system for the welding booths of the Federal Institute of Piauí – Teresina Central Campus, aiming to improve working conditions and ensure user safety. The project was developed for a laboratory consisting of nine welding booths, with technical drawings created using AutoCAD software. The adopted methodology included an analysis of the laboratory layout, sizing of hoods, ducts, pressure losses, fan selection, and appropriate filter choice for retaining ultrafine particles. The results show that the proposed system meets regulatory and technical requirements, providing greater efficiency in capturing contaminants directly at the emission source. It is concluded that the implementation of this system will significantly contribute to the preservation of user health and the quality of practical welding education.