Firefire separation facilities -fire door

Fire door

Fire Door

The concept of fire door :

Fire door refers to the door that can meet the refractory stability, integrity and insulation requirements in a certain period of time. It is a fire -resistant separator with certain fire resistance in the fire prevention partition, evacuation staircase, and vertical well.

The role of the fire door:

In addition to the role of ordinary doors, the fire door also has the effect of preventing the spread of fire and the spread of flue gas. Essence

It is specially used in house buildings for isolation of fire sources. It has a huge role in fire protection. Once a fire occurs, people can obtain escape opportunities through the fire door.

Settings of the fire door:

The closed evacuation staircase leading to the aisle.

The closed elevator room leads the front room and the front room to the walkway door.

The inspection door of vertical pipe wells such as cable wells, pipeline wells, flue discharge, and garbage aisons.

Divide the firewall and the door of the firewall and fireproof partition walls on the construction area of ​​the fire prevention partition.

When the building is difficult to set the firewall or the fire door, it is necessary to replace it with a fire roller door, and at the same time, it must be protected by the water curtain.

Specific or design special requirements for fire prevention and smoke prevention partitionsdoor.

Flint door:

Fire door setting in the building should adopt a frequent fire door.

Frequent fire-proof doors should be closed by themselves during the fire, and it should have the function of signal feedback.

Normally closed fire door:

Except for the position where the frequent fire door is allowed, the fire door in other locations should be used to use normally closed fire doors.

Normally closed fire doors should set prompt signs such as \”keep the fire door closure\” in its obvious location.

Fire door function:

Except for the door inspection door and house door, the fire door should have its own close function. Function.

The fire door should have a closed smoke-proof performance after the fire door is closed. Manually open

When setting near the building deformation seam, the fire door should be set on the side of the floor, and the door fan should not be spanned when the fire door is turned on.

Fire door is classified by material:

Wood fire door: Fire Resistant Timber Doorsets Wood Fire Door for Burning Wood Fire Door as a door frame, door fan skeleton, door fan panel. \”>> Steel fire door: Fire Resistant Steel Doorsets Steel fire -proof door uses steel materials to make door frames, door leds, and door fans. Materials, with fire prevention fiveThe golden accessories have a certain fire resistance door.

Steel wood fire door: Fire Resistant Timber Doorstets with Steel Structure Steel Wood Fire Door Make steel quality and hard-burning materials or difficulty-burning wood products panel.

Other material fire doors: Other Material Fire Resistant Doorsets other material fire doors are used with inorganic materials except steel, difficulty of burning wood or hard-burning wood products or partially used Steel, difficulty -burning wood, difficulty -burning wood products make door frames, door fans skeleton, door fan panels, if the material is filled in the door fan, fill the fire insulation material that is non -toxic and harmless to the human body. Performance door.

Fire door Classification according to the opening state:

There are often closed fire doors and frequent fire doors.

Fire door Classification of insulation:

Class A insulation fire door: Fully INSulated Doorsets

Fire door that can meet the refractory integrity and thermal insulation requirements at the same time within the specified time.

Class B some insulation fire doors: partially insulating doorsets

In the specifications greater than or equal to 0.50 h, satisfy the entire fire resistance complete Fire door for sexual and insulation requirements.

Class C non-insulation fire door: no insulated doorsets

During the specified time, it can meet the requirements of refractory integrity requirements within the specified time Fire door.

Fire door classification according to fire resistance limit:

The refractory limit of the Class A fire door is 1.5h.

The refractory limit of the Class B fire door is 1.0H.

The refractory limit of the Class C fire door is 0.5h.

Grade A fire door settings:

The door set on the firewall, and the evacuation aisle is set at the fireproof partition.

Set on the door with a fire-resistant partition wall with a fire resistance limit of not less than 3.00h.

\” \”Elevator, evacuating stairwells connecting to the door of the galaxy.

\” The door of the interior to the evacuation door in the front room of the shelter, the evacuation door of the shelter.

Multi-layer B warehouse and underground, half-underground and multi-level, high-rise, and high-rise warehouses from the warehouse to evacuated walkway or evacuation stairwell.

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Settings of Class B fire door:

(Note: The door at the corresponding part of the building with a building height of more than 100m shall be a Grade A fire door.

Class A, B factory buildings, multi -storey factory buildings, densely personnel public buildings and other high -rise industries and civil buildings. -track = \”58\”> The door of the front room

Fire Elevator\’s front room or the door of the front room. = \”Letter-spacing: 0.5px;\”> span>

Underground, half -underground and multi -level, high -rise, high -rise diced warehouses from the warehouse to the door of evacuation aisle or evacuation stairs.

The room evacuation door of the song and dance entertainment show.

The evacuation door of the outdoor evacuation stairs from the room.

Set on the door with a fire-resistant partition wall with a fire resistance of not less than 2.00h.

Electrical wells, pipe wells, exhaust, exhaust tract, garbage roads and other inspection doors:

Underground buildings or underground projects greater than 10m should be a Grade A fire door. \”> For buildings with a height of the building greater than 100m, it should be a Class A fire door. p>

For The combined front room of the vertical well and residential building with no fire separation between the layers. > For other buildings, the refractory capacity of the door should not be lower than that of When the requirements of the Class C fire door, when there is no horizontal fire separation at the floors, the refractory resistance of the door should not be lower than the requirements of the B -level fire door. https://p3-sign.toutiaoimg.com/tos-cn- I-6W9MY0KSVP/E07BD597DF274A8C482BCFA739DE ~TPLV- Origin-weg?_iz=58558&FR OM = Article.pc_detail & LK3S = 953192F4 & X-EXPIRES = 1739326453 & X-Signature = n6H4O64OXJQ09FKATVCAP4Q3%2Bdk%3d \”/>

Fire door in people\’s air defense project:

The protective door, closed -door, closed doors of fire doors, the refractory resistance should not be lower than the requirements of Grade A fire door, and it is not used in the evacuation exports of public places used in ordinary use. /p>

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