The design and installation of fire doors should strictly abide by the rules

Fire doors within a certain time to meet the fire-resistant stability, integrity and insulation requirements of the door, mainly for the building fire district firewall openings, stairwell entrances and exits, evacuation corridors, pipeline wellhead, etc.. Fire doors used for normal movement of persons within a certain time, in case of fire, to prevent the spread of fire and smoke diffusion, and to protect the safety of personnel evacuation and sealing effect in the work of positive pressure air supply system. Its design is reasonable, whether it is appropriate to install, manage, use in place is directly related to the fire doors, fire effect.

It can be seen from the fire which occurred in recent years, paid a heavy price for the absence of the right to set up and maintenance of fire doors, people's lives and property in the disaster. For these bloody lessons, I combine experience in the actual supervision and inspection work, brief description of the fire doors in the design, installation and management of the note when something has gone wrong please criticism.

A rational design, proper selection

The design staff in the fire doors in the building design should be based on the architectural nature, type, strictly in accordance with fire codes require a reasonable set of fire doors, and not free to reduce the level of fire doors.

1, the daily flow of people in the building more fire doors to frequency of use of the site, should give priority to the design normally open fire doors. Role often open fire doors function depends mainly on the electromagnetic release valve or magnetic suction doors, door closers and automatic control system to achieve the autistic features, able to quickly shut down when the fire broke serve to prevent fire spread and smoke diffusion , so the design is conducive to the time of the fire evacuation, but also to avoid the frequent use of fire doors appear damaged.

2, in the design of closed stairways, and did not use positive pressure air supply system smoke stairwell fire doors of the front room, fire doors should be considered the distance from the ceiling to try to not less than 500mm, so that in the event of a fire accident, can effectively prevent staff evacuation of flue gas entering the stairway, and ensures that the effect of smoke in the stairwell.

Should be considered in the design of a positive pressure air supply system of the stairwell and the front room fire doors to match the single-leaf fire doors open area with positive pressure air supply. If the fire doors open area is too large, when the fire broke out, the positive pressure air supply system running under the stairway because of the role of pressure may be caused by the fire doors open is not smooth enough, is not conducive to staff the rapid evacuation.

(Source: aluminum shutter door , http://www.shdayu.net )

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