Welding fume monitoring method for welding workplace

Abstract

The invention discloses a welding fume monitoring system for a welding workplace. The welding fume monitoring system comprises a main control module; a smoke exhaust channel, mounted in a welding workplace; wherein the smoke exhaust channel is provided with a fume inlet end and a fume outlet end, the fume inlet end is arranged at the position where welding smoke is generated during welding operation, and the fume outlet end is communicated with the outside; a first fume sensor, electrically connected with the main control module and arranged at the fume inlet end; a second fume sensor, electrically connected with the main control module and arranged at the fume outlet end; an exhaust device, electrically connected with the main control module, arranged at the fume inlet end and used for sucking generated fume from the fume inlet end through the exhaust device and exhausting the fume from the fume outlet end during welding operation; a main control module, controlling the opening degreeof the exhaust device according to the inlet fume concentration and the outlet fume concentration. The invention further discloses a welding fume monitoring method for the welding workplace.

Description

technical field [0001] The invention relates to the field of welding smoke monitoring in welding workplaces, in particular to a method for monitoring welding smoke in welding workplaces. Background technique [0002] The dust in the welding fume is a very complex substance. More than 20 elements have been found in the dust, among which Fe, Ca, Na, etc. are the most abundant, followed by Si, Al, Mn, Ti, Cu Wait. The main harmful substance in welding fume is Fe 2 o 3 , SiO 2 , MnO, HF, etc., among which Fe is the most 2 o 3 , generally accounting for 35.56% of the total soot, followed by SiO 2 , its content accounts for 10-20%, and MnO accounts for about 5-20%. The main components of toxic and harmful gases in welding fume are CO, CO 2 , O 3 , NOX, CH 4 etc., among which CO accounts for the largest proportion. Due to the small amount of toxic and harmful gas produced, and the complex gas composition, it is difficult to quantify. The environmental impact assessment i...

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Problems solved by technology

[0003] Based on the above technical problems, the present invention designs and develops a welding fume monitoring system for welding workplaces. The purpose of the invention is to solve the problem of welding fume monitoring in welding workplaces

[0004] The present invention has designed and developed a welding fume monitoring method for welding workplaces. One of the purposes of the present invention is to solve the problem of welding fume monitoring in welding workplaces based on fuzzy control models, and at the same time reasonably open the exhaust device in the monitoring system. control

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