How many times per hour is the fire pump room ventilated under normal conditions, and how many minutes does each ventilation cycle last?
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Gentlemen, the standard requirement for the frequency of ventilation in fire pump rooms is 6 times per hour. What does that mean? It can also be 1 minute each time for 6 times, or 10 minutes each time, exactly 6 times. Is it by not considering the ventilation volume? Is it necessary to replace the air in the fire pump room every time? Or what?
There’s no strange odor; the ventilation frequency isn’t that high, is it?
According to the standard approach, proper ventilation indeed requires replacing all the air inside a room; factors such as the size of the room and its volume, as well as the type of equipment used, need to be taken into account. Therefore, only the number of ventilation cycles is specified – the actual duration for which the system operates depends on the type of fan chosen
These are the requirements for ventilation design: in areas with general hazards, environmental ventilation is required at 6 times per hour, while emergency exhaust is required at 12 times per hour. The exact calculation method for implementing these requirements is not clear. During routine inspections, the air volume should be xx m3/h; this value of xx should be at least 6 times the volume of the space in order to pass the inspection. Environmental ventilation needs to run continuously
It means replacing the air in the fire pump room every time. The exhaust volume per time is area times floor height
In the fire pump room, why is ventilation done so many times – is it due to something like water vapor? Are they afraid of some dangerous gas getting in?
Usually 2 to 4 times is enough