You need to look at what type of technical room it is. The main considerations are the presence of combustibles and whether there are many people. Generally, natural smoke extraction is used on the ground. The basement technical room must be equipped. with smoke extraction and air supply. It is not necessary to use the water pump room. Smoke prevention is generally provided for smoke-proof stairwells and their front rooms, front rooms of fire-fighting elevators, common front rooms and evacuation passages such as refuge floors, rooms before the refuge and the refuge walkways. The technical rooms are mainly intended for smoke extraction.
Smoke extraction machine room: a technical room where smoke extraction fans are installed for fire protection. The function of the smoke exhaust fan is: When a fire breaks out in the basement, a largeamount of smoke is generated. At this time, the fire smoke exhaust fan starts to remove smoke from the fire area. Additionally, the smoke exhaust fan can also be used to reduce the air in the basement.
Fan room: the technical room where the fan is installed. If the air supply fan is installed on the roof of a high-rise building and supplies air to the stairwell or elevator front room through the duct well, it is called air supply. positive pressure air. Its function is also to supply air to the stairwell or. room in front of the elevator when a fire breaks out upstairs. Guarantor of safe evacuation.