The kitchen needs fire doors. Fire doors are an important part of fire-fighting equipment, which can prevent the spread of fire and smoke in case of fire, ensure the safe evacuation of personnel, and have corresponding standards for installation and use.

The main functional difference between a fire door and an ordinary security door is that the filler inside the fire door is a special fireproof, heat-insulating and flame-retardant material, and a fireproof expansion sealing strip is adopted, which can expand after encountering high temperature and block smoke. Ordinary security doors mainly support steel frames and sound-proof cardboard, and the sealing rubber strip is also ordinary rubber strip, which has no function of blocking smoke.

Extended data:

Fire doors are generally located in the following parts:

(1) Close the evacuation stairs and lead to the walkway; Close the elevator room, the door leading to the front room and the front room leading to the walkway.

(2) Inspection doors of vertical pipeline wells such as cable wells, pipeline wells, smoke exhaust channels and garbage channels.

(3) Divide the fire zones and control the firewalls and doors on the fire partition wall in the building area of the zones. When it is difficult to install a firewall or fire door in a building, it should be replaced by a fire shutter door, and at the same time it must be protected by a water curtain.

(4) The partition door with specifications (such as GB500 16-20 14 Code for Fire Prevention in Architectural Design) or special requirements for fire prevention and smoke prevention.

References:

People's Daily Online-Fire Reminder: Don't replace the fire doors easily in the renovation of new houses.

Baidu encyclopedia-fire door