Emission characteristics of harmful substances and suitable ventilation measures in flame effect theaters

The flame effect theater uses a large amount of gas to create flame effects for performances in a closed space, and its ventilation requirements have greater particularity. Studies the emission law of harmful substances in the flame effect theater, and finds that the main harmful substance is CO and the potential hazard is large. Therefore, the main goal of the ventilation system is to eliminate CO. Uses the simulation method to study the CO removal efficiency, and finds that a large amount of CO will gradually accumulate in the flame effect theater. Simply increasing the air change rate or using conventional air supply scheme can not meet the requirements. Suggests that the ventilation system should drive air out of the viewing area in one direction. Specific measures include: the air outlet should be set closer to the audience, and the air should be supplied at a lower speed, to prevent the return air of the performance area entering the viewing area.