Which places should be equipped with smoke exhaust facilities?

First, the following places or parts of the factory or warehouse should be equipped with smoke exhaust facilities:

1, Class C production sites with more personnel or combustible materials, and above-ground rooms with a building area of more than 300m2 in Class C workshops where people often stay or combustible materials are more.

2. Class D workshop with a building area of more than 5000m2.

3. Class C warehouses with an area greater than 1000m2.

4. Evacuation walkways with a height of more than 32m and a length of more than 20m for high-rise factories (warehouses), and evacuation walkways with a length of more than 40m for other factories (warehouses).

Two, the following places or parts of civil buildings should be equipped with smoke exhaust facilities:

1. Song, dance and entertainment venues are located on the first, second and third floors, and the room construction area is greater than 100m2. Song, dance and entertainment venues are located on the fourth floor and above, underground or semi-underground.

2. Atrium.

3. Above-ground rooms in public * * * buildings with a building area exceeding 100m2 and often inhabited.

4, male * * * building construction area of more than 300m2 and above the ground combustible room.

5. Evacuation walkways with a length greater than 20m in the building.

Three, underground or semi-underground buildings (rooms), there is no window room in the above-ground building, when the total construction area is more than 200m2 or a room construction area is more than 50m2, and people often stay or there are more combustible materials, smoke exhaust facilities should be set up.

Extended data:

Many high-rise buildings, underground works, traffic tunnels and public entertainment places have suffered heavy casualties due to fire accidents, which makes people clearly realize the importance and necessity of designing and installing smoke control systems and ensuring their long-term good performance.

The fact of the fire tells us that when a fire happens, the smoke control system can effectively control the spread of smoke; And the smoke is quickly and timely, which plays a key role in saving people and disaster relief. It is an important fire control facility related to the success or failure of emergency rescue and disaster relief. It must be well designed, installed and maintained to ensure long-term good performance during the service life.

According to the requirements of building regulations, the system consisting of all smoke exhaust facilities must be set in the building is called smoke exhaust system. In the power plant, the smoke exhaust system consists of induced draft fan, flue, gate and chimney. Its task is to exhaust the flue gas produced by the combustion of furnace fuel.

The function of the smoke exhaust system is to start quickly when a fireworks disaster occurs in the building, and to exhaust the smoke out of the building in time, so that evacuees and disaster relief personnel are not trapped by fireworks, reducing casualties and property losses. Create favorable conditions for saving lives and extinguishing fires.

Baidu encyclopedia-smoke exhaust system