Fire Door Structure

Fire doors are generally located in the following parts.

(1) Close the evacuation stairs, leading to the aisle; close the elevator room, leading to the front room and the door leading to the aisle from the front room.

(2) Inspection doors for vertical pipeline wells such as cable wells, pipeline wells, flue exhaust ducts, and garbage ducts.

(3) Divide the fire compartment, and control the fire wall and the door on the fire partition wall set up in the building area of the compartment. When it is difficult to set up a fire wall or fire door in a building, a fire shutter door should be used instead, and it must be protected by a water curtain.

(4) Specifications (such as GB 50016-2014 "Code for Fire Protection in Architectural Design") or partition doors with special requirements for fire prevention and smoke prevention.

For example: the equipment rooms (cylinder rooms, foam stations, etc.) of fixed fire extinguishing devices attached to high-rise civil buildings, and the partition doors of ventilation and air-conditioning machine rooms should be Class A fire doors; The door on the partition wall of the basement room should be a class A fire door; due to the limitation of conditions, oil and gas boilers, oil-immersed power transformers with oil, high-voltage capacitors and switches filled with oil, etc. must be arranged in high-rise buildings. The door on the partition wall of the special room should be a Class A fire door. There are also fire-proof doors designed with special requirements, such as the doors of fire monitoring and command centers, archives and reference rooms, valuables warehouses, etc., usually Class A or B fire doors. Fire-proof and anti-theft doors are often used for the doors of high-rise and senior residential buildings. GB 12955-2008 Requirements for fire resistance of fire doors

Fire doors are an important part of fire protection equipment and an important part of social fire protection. Fire doors should be equipped with fire door closers or a door closing device that allows normally open fire doors to automatically close the door leaf when a fire occurs (special Except for the use of parts, such as pipeline well doors, etc.). That is to say, except for some special parts, such as pipeline well doors, which do not need to be installed with door closers, other parts need to be installed with fire door closers.