Fireproof door

Abstract

The invention belongs to the technical field of safety door structures and discloses a fireproof door. The fireproof door comprises a door frame and a door plate, wherein the door plate adopts a foamed aluminum plate, a first polypropylene fiber spunbonded nonwoven, a three-dimensional wavy mixed short fiber layer, a second polypropylene fiber spunbonded nonwoven, acrylic resin, a fireproof layer and a stainless steel material layer are sequentially arranged outside the foamed aluminium plate; the door frame is arranged around the door plate, at one vertical side edge of the door plate and on the vertical side wall of the door frame; an outer plate skirt is arranged on the periphery of the inner side surface of the door plate, and a sealing washer is bonded in an included angle formed between the plate skirt and a thickness surface of the door plate. When a fire breaks out, people hide in a fire avoiding chamber, the door plate is closed on the door frame and locked, the sealing washer can seal and block gaps between the door plate and the door frame, and at the moment, high temperature outside the fire avoiding chamber cannot be transmitted to the fire avoiding chamber by virtue of the air, and heat transfer of the air can be isolated.

Description

technical field [0001] The invention belongs to the technical field of safety door structures. Background technique [0002] In existing housing construction, fire safety is an important consideration. At present, in order to ensure the safety of residents, some relatively high-end apartments or buildings will leave a separate fire escape room. The fire escape room has independent power supply, emergency food and oxygen generator, which can ensure the basic survival of people. The door of the room needs to meet the requirements of fire prevention and explosion resistance. At present, the doors in this fire escape room are usually made of steel fire doors: steel is used for the door frame and the surface of the door leaf, and inorganic fireproof materials are used for the inner door core of the door leaf. The advantages of the door are fire prevention, fire resistance and good strength. The disadvantage is that on the one hand, the steel has high thermal conductivity and hea...

AI Technical Summary

Problems solved by technology

At present, in order to ensure the safety of residents, some relatively high-end apartments or buildings will leave a separate fire escape room. The fire escape room has independent power supply, emergency food and oxygen generator, which can ensure the basic survival of people. The door of the room needs to meet the requirements of fire prevention and explosion resistance. At present, the doors in the fire escape room are usually made of steel fire doors: the door frame and the surface of the door leaf are made of steel, and the inner door core of the door leaf is made of inorganic fireproof material. The advantages of the door are fire prevention, fire resistance and good strength. The disadvantage is that on the one hand, the steel has high thermal conductivity and heat transfer block, which leads to poor heat insulation performance of the fire shelter. On the other hand, the steel is heavy, such as the weight of ordinary Class A doors about 150 catties

[0004] The use of foamed aluminum to make fire doors has the advantages of low thermal conductivity, high temperature resistance, strong fire performance, and good sound insulation and noise reduction effects, but only the improvement of the door panel, there is still a gap between the door panel and the door frame, and the high temperature remains after the house fire Can be airborne into fire shelters, putting people at risk of heat

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