Composition of fire door

Fire doors are generally set at the following positions.

(1) Close the evacuation staircase to the walkway; Enclose the elevator hall, the door leading to the front room and the front room leading to the walkway.

(2) Inspection doors of vertical pipe shafts such as cable shafts, pipe shafts, smoke exhaust ducts, garbage ducts, etc.

(3) Divide the fire compartment and control the fire wall and the door on the fire partition in the building area of the compartment. When it is difficult to set firewall or fire door in the building, fire rolling shutter door shall be used instead, and water curtain shall be used for protection.

(4) Code (such as GB50016-2014 Code for Fire Protection Design of Buildings) or partition door with special requirements for fire and smoke prevention.

For example, the partition doors of equipment rooms (cylinder rooms, foam stations, etc.) attached with fixed fire extinguishing devices in high-rise civil buildings, ventilation, air conditioning rooms, etc. should be Class A fireproof doors; The door on the partition wall of the basement room where people often stay or there are many combustibles shall be Class A fireproof door; Due to limited conditions, it is necessary to arrange oil fired and gas-fired boilers, oil immersed power transformers, high voltage capacitors and switches filled with oil, etc. in high-rise buildings. The doors on the partition walls of special rooms should be Class A fireproof doors. There are also household doors with special requirements that must be fireproof, such as fire control command center, archives room, valuables warehouse, etc., which usually use Class A or Class B fireproof doors. Fire and burglar proof doors are often used as household doors in high-rise and high-grade residential buildings. GB 12955-2008 Requirements for Fire Resistance of Fire Doors

Fire door is an important part of fire fighting equipment and an important part of social fire prevention. Fire door closers shall be installed on fire doors or door closing devices shall be set for normally open fire doors to automatically close the door leaves in case of fire (except for special parts, such as pipeline shaft doors, etc.). That is to say, except for some special parts, such as pipeline well doors, which do not need to install door closers, other parts need to install fire door closers.