When we mention ventilation ducts, we usually think of […]
When we mention ventilation ducts, we usually think of ventilation ducts in office buildings, which is an application that we usually have more contact with. In fact, there are still many applications of ventilation ducts, especially in some workshops, which require ventilation ducts.
Because the welding workshop of the workshop generally has the characteristics of tall space, variable size of welding parts, unstable welding location, and many welding methods, the indoor air flow is disordered and the pollutants are difficult to deal with. Therefore, how to effectively deal with the ventilation and dust removal problem in the welding workshop is a major issue related to the health of the production staff.
When designing ventilation ducts, it is necessary to consider that welding is a labor-intensive type of work, and a large amount of toxic metal fumes, welding dust, harmful gases, radiant heat, and light pollution will be generated during the welding process, which will seriously affect the staff and surrounding personnel. To be healthy, it is necessary to ventilate the welding workshop, remove and dilute harmful substances, and establish a good welding environment.
The ventilation duct design, on the one hand, uses clean air to dilute the harmful concentration in the indoor air, and at the same time discharges the polluted air outdoors from time to time, so that the concentration of harmful substances in the indoor air does not exceed the maximum allowable concentration in the sanitation regulations. General ventilation is usually based on the air exchange volume or the number of air changes in the workshop. According to the dilution theory, the concentration of harmful substances in the workshop is diluted to below the allowable concentration.