Because the circuit between the previous stage or the low-pressure chamber and the fire-fighting equipment is single loop, it is convenient to switch, but once there is a problem, the reliability of the fire-fighting equipment cannot be guaranteed.
Fire-fighting fan refers to an industrial fan that can run continuously at 300℃ for more than 60 minutes and is not damaged at 100℃ for 20 hours/time. Therefore, the fire fighting fan has dual power supply. When the power supply system fails, it can only be provided by another mains supply or standby generator set, and the distribution line of standby power supply is relatively complicated, which has certain hidden dangers.
The characteristics of fire fighting fan are: full intelligent control, full digital direct control and full information display.