1、 Air supply mode

Air supply is one of the basic functions of air supply and smoke exhaust fans, and its working principle is as follows:

Firstly, the motor drives the impeller to rotate, generating an airflow;

As the impeller rotates continuously, the airflow is drawn into the interior of the fan and forms a low-pressure area at the inlet;

When air passes through the impeller and passes through the air outlet, the impeller pushes it into the air duct;

Finally, the air supply and smoke exhaust fan delivers air to the target area.

Supply air and smoke exhaust fans are widely used in large spaces such as factories, large shopping malls, and sports venues, which can effectively achieve the purpose of forced ventilation. In environments that require air conditioning cooling, air supply and smoke exhaust fans are also excellent auxiliary equipment.

2、 Smoke exhaust mode

In addition to air supply, smoke exhaust is also one of the important functions of air supply and smoke exhaust fans. The smoke exhaust mode is mainly applied to fire accident sites, and its working principle is as follows:

When a fire occurs, smoke and toxic gases begin to spread in the environment. At this time, the air supply and smoke exhaust fan will enter the smoke exhaust mode;

The motor starts and the impeller begins to rotate, emitting smoke and toxic gases and sending them outdoors;

At the same time, the air supply and smoke exhaust fan creates convective airflow inside the building, as well as sufficient negative pressure, to help alleviate on-site pressure and facilitate rescue by firefighters.

In addition to the scene of fire accidents, smoke exhaust is also a necessary facility for some special spaces, such as underground garages, factory workshops, etc.

3、 Application scenarios

The air supply and smoke exhaust fan has various application scenarios, including:

1. Ventilation and cooling in large public places such as shopping malls and supermarkets;

2. Ventilation, cooling, and fire smoke exhaust for office buildings, factories, etc;

3. Smoke exhaust facilities in underground parking lots, subway systems, and other places;

4. Ventilation equipment with high air quality requirements in hospitals, laboratories, and other places;