Fireproof safety door

Abstract

The invention discloses a fireproof safety door. A water spray mechanism is arranged in a door frame, the water spray mechanism comprises water pipes arranged in the orientation of the door frame, thewater pipes communicate with the outside water source through a three-way joint, and a temperature-sensitive device is arranged between the three-way joint and the outside water source; a plurality of latticed empty cavities are formed in a door body, the empty cavities are filled with flame retardants and water bags, wherein the flame retardants and the water bags are separated from each other,the flame retardants comprise spongy layers and rock wool layers arranged on the two sides of the rock wool layers, and the water bags are connected with the inner walls of cavities bodies of the empty cavities of the door body through supporting plates. The water spray mechanism, the flame retardants and the water bags are arranged, when fire happens, on the one hand, water sprayed from the waterspray mechanism forms a water curtain to block flames, and the water curtain further has certain absorption action on smoke dust in air; and on the other hand, the flame retardants can greatly improve the heat-insulating performance of the door body, when the water bags shrink and crack after heated, internal loaded tap water overflows from a through hole of the door body, and the temperature rise speed of the fireproof safety door is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of building fire protection, in particular to a fire safety door. Background technique [0002] Fire safety door refers to the door installed on the entrance and exit walls of fire compartments, evacuation stairwells, vertical shafts, etc., in addition to the function of ordinary doors, more importantly, it has the function of preventing smoke from spreading, and at the same time can be used within a certain period of time. Stop the spread of fire and ensure evacuation. [0003] However, although the current fire safety doors have certain fire resistance, they can prevent the fire from spreading in a short period of time, but: 1, when the fire is relatively large, it is often accompanied by a large amount of dense smoke, which increases the difficulty of escape; 2, Most of them are hollow doors made of steel. Although this kind of fire safety door utilizes the characteristics of metal high temperature resis...

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Problems solved by technology

[0003] However, although the current fire safety doors have certain fire resistance, they can prevent the fire from spreading in a short period of time, but: 1, when the fire is relatively large, it is often accompanied by a large amount of dense smoke, which increases the difficulty of escape; 2, Most of them are hollow doors made of steel. Although this kind of fire safety door utilizes the characteristics of metal high temperature resistance and no open flame, it can play a certain fireproof effect, but because steel is easy to quickly absorb a large amount of heat in the event of a fire, causing the door to be damaged. The temperature of the body rises rapidly, and objects close to the non-fired surface of the fire safety door are easily ignited due to its high temperature

[0004] The patent application number (CN201510183405.8) discloses a steel heat-insulated fire door, which is composed of a door frame and a door leaf. The inside of the door frame is poured with cement mortar. The frame and panel of the door leaf are made of galvanized steel. Although the steel plate, cement mortar and fireproof materials can play a certain role in fire prevention and heat insulation, but in the case of a large fire, it is often accompanied by a large amount of thick smoke, which cannot effectively prevent the air carrying smoke from passing through the door leaf, increasing the Increased the difficulty of personnel escape

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