2, the working principle of fire shutter door:

Fire shutter doors are composed of curtains, tracks, drums, motors and control boxes, which are mainly used to separate fire zones, and each fire shutter door can automatically descend. Fire shutter should be equipped with fire emergency power supply (battery), which can automatically drop to the bottom after power failure.

Fire shutter doors are equipped with smoke detectors and temperature detectors. When the smoke detector moves, the shutter door automatically descends by half to prevent the smoke from spreading, and when the temperature detector moves, the shutter door automatically descends completely to prevent the fire from spreading. Each fire shutter door must be connected with the fire control host, which can operate the fire shutter door to descend and feed back the action information of the shutter door.

Extended data

The function of fire shutter door:

Fire shutter doors play the same role as firewalls in horizontal fire separation. It is composed of shutter plate, seat plate, guide rail, bracket, reel, box, control box, shutter machine, limiter, lintel, manual quick-release switch device, button switch, safety device, etc. 13, which is generally installed in the part that is inconvenient to be separated by firewall.

For example, open elevator halls, escalators, large business halls of department stores, exhibition halls of exhibition buildings, and building parts that cannot use fire doors and windows because of large openings. Fire shutter doors have been widely used in construction projects.

Fire shutter doors are indispensable fire-fighting facilities in modern high-rise buildings. Fire shutter doors not only have the functions of ordinary doors, but also have special functions of fire prevention, smoke isolation, fire prevention and evacuation protection, which are widely used in high-rise buildings, large shopping malls and other crowded places.

Classification of fire shutter doors:

The types of fire shutter doors mainly include composite steel fire shutter doors (fire prevention and smoke prevention), inorganic super-grade fire shutter doors (double-track and double-curtain), steel composite water jet water mist fire shutter doors, steel composite lateral fire shutter doors, steel composite horizontal fire shutter doors, inorganic super-grade folding fire shutter doors and various curtain-type middle door fire shutter doors.

According to materials: steel, composite, inorganic, etc.

According to the installation form: inside the wall, side of the wall (or inside or outside the hole).

According to the opening direction: roll type and side roll type.

Baidu encyclopedia-fire shutter door