The working principle of fire fire exhaustion is mainly based on the principles of aerodynamics and thermodynamics.Specifically, when the fire occurs, the work process of fire smoke is as follows:
Start signal: When the fire signal of the fire alarm system detects the fire signal (such as the smoke concentration exceeds the set value, the temperature increases to a certain degree, etc.), the start signal will be sent to the smoke discharge controller.
Fans start: After the smoke exhaust controller receives the start signal, the power supply will control the power supply to the smoke exhaust fan to start it.At this time, the fan blades of the fan began to rotate to produce a powerful airflow.
Smoking process: The generated air flow passed through the smoke exhaust pipes and entered the fire scene, pushing smoke and harmful gas outdoors.At the same time, in other parts of the smoke discharge channel, the fire smoke exhaust fan also plays a role in the air. Through the pressure difference between the inside and outside of the building, inhale fresh external air, and send it to the fire scene, thereby achieving air circulation and the circulation of air and the circulation and the circulation of airReplace.
Wind speed adjustment: Fire fire exhaust fan can be adjusted according to the actual situation of the fire scene.In the early days of the fire, in order to quickly eliminate smoke and harmful gases, the fan may run at a higher speed; after the fire is controlled, in order to save energy and reduce noise, the fan may reduce the speed.
System monitoring: Fire fire exhaust fan is usually equipped with a monitoring system, which can monitor the system in real time, discover the fault and deal with it in time.For example, when the fan is abnormal and the temperature is too high, the monitoring system will issue alarm and automatically turn off the fan to avoid further damage and safety accidents.
In short, firefighting fans can quickly eliminate the smoke and harmful gases of the fire scene by generating strong airflows and regulating wind speeds to ensure the safety of personnel and the safety of the building.At the same time, its monitoring system can also perform real -time monitoring and fault treatment of the system to ensure the normal operation of the system.
The above is the working principle of fire fire exhaust fan