Exhaust smoke fan:
The reverse direction of the smoke exhaust fan usually results in reverse wind. The smoke exhaust fan rotates in the opposite direction, causing it to generate reverse wind. Smoke exhaust fan is a mechanical device that quickly removes odors, high temperatures, and fumes generated during food processing in the kitchen. Various equipment in the kitchen, such as frying, frying, steaming, boiling, frying, and grilling, constantly produce various high temperature, humid, and polluting gases during the processing of food. If it accumulates to a certain extent, the kitchen will become uncomfortable and continue working. It is necessary to use a fan to exhaust the polluted gas from the kitchen through the exhaust pipe.
Fire exhaust fan:
The fire exhaust fan mainly refers to the smoke that emits a lot of thick smoke when a fire occurs indoors, and its function is to exhaust these thick smoke indoors. The fire exhaust fan has a smoke exhaust valve, which is usually closed by you. When a fire occurs, it automatically opens and is connected to the alarm host. The opening condition is that the automatic alarm system generates a fire alarm, and the fire alarm host is in an automatic state. The fire exhaust valve automatically opens and the linkage fire exhaust fan starts. The role of fire exhaust fans. It is mainly used in high-rise buildings, basements, large kitchens, and so on.
Although both the oil smoke exhaust fan and fire smoke exhaust fan are smoke control systems, they are completely different products. Smoke exhaust pipes are not equipped with smoke exhaust valves at the end, and smoke exhaust fire dampers are installed at the connection between the smoke exhaust fan and the smoke exhaust pipe. It should be noted that smoke exhaust valves and smoke fire dampers are devices with completely different functions.
The smoke exhaust valve is usually closed and opened in case of a fire. It is linked to the alarm host. The opening condition is that the automatic alarm system generates a fire alarm (detector alarm), and the fire alarm host is in automatic mode. The fire exhaust valve automatically opens, and the linked fire exhaust fan starts.
The smoke exhaust fire damper is usually open, and it is also in the open state during a fire. However, when the smoke temperature reaches 280 ℃, the smoke exhaust fire damper automatically closes, and the fan that has been linked to it stops running. The smoke exhaust fan that is linked to the fire alarm host belongs to the smoke exhaust system in the fire protection system. But the premise for the fire exhaust fan to complete the above work is that the control cabinet of the smoke exhaust fan is placed in automatic operation, and the working principle of the fire exhaust fan is roughly as follows. Mainly used for fire ventilation, please note that when the fan control cabinet is in manual mode, it will not be linked with the fire alarm system