How to choose fireproof materials?
1, fireproof board
Fireproof board is the most commonly used material in the market at present. There are two kinds commonly used: one is high-pressure decorative fire-resistant board, which has the advantages of fire prevention, moisture resistance, wear resistance, oil resistance, easy cleaning and many colors; One is a glass-magnesium fireproof board, the outer layer is a decorative material, and the inner layer is a mineral glass-magnesium arson material, which can resist the high temperature of 1500 degrees, but the decoration is not strong. Installing fire-proof ceilings at the exits, stairwells and corridors of buildings can ensure the safe evacuation of people in case of fire and protect them from the spread of fire.
2. Fire doors
Fire doors are divided into wood fire doors, steel fire doors and stainless steel fire doors. Usually, fire doors are used in the openings of firewalls, stairwell entrances and exits, evacuation walkways, pipe shaft openings and other parts, which play an important role in fire separation and reducing fire losses.
3, fireproof wooden window frame
Wood sealing material is embedded around the fireproof wood window frame, which can prevent the flame from drilling through the gap when it is thermally expanded. Even if the fire is fierce outside, it can resist fire for 30 minutes. This kind of window frame is made of pine, and the sealing material made of graphite is stuck around it to block the tiny gaps and increase the fire prevention effect. According to the experiment, at the distance of 10 cm from the window frame, aim the flame at the window frame with a flamethrower, and spray the flame with the temperature as high as 800℃ for 20 minutes, but the flame fails to penetrate the window frame, indicating that its fire prevention effect is several times that of aluminum window frame.
4, fire shutter
Where it is not convenient to set up a firewall in a building, a fire shutter can be set up. Fire shutter generally has good functions of fire prevention, heat insulation, smoke isolation, compression resistance, aging resistance and wear resistance.
5, fire and moth-proof wood
Fire-proof and moth-proof wood is first soaked in a solution containing cations such as calcium and aluminum, and then soaked in a solution containing anions such as phosphate and silicate. In this way, these two ions will react chemically in wood to form a ceramic-like substance, which is tightly filled in the gaps of cell tissues, thus making wood have fire-proof and moth-proof properties.
6, fire storage box
Can withstand quite high external temperature. Can be placed independently or embedded in the wall. Can protect coins, account books, vouchers, tapes, audio tapes, photographic negatives and other valuables from being lost in the fire.
7. Fireproof glass
Fire-proof glass has good light transmission, fire resistance, heat insulation and sound insulation. There are three kinds of common fire-proof glass: laminated composite fire-proof glass, wire-sandwiched fire-proof glass and hollow fire-proof glass. Fire-proof glass is an ideal fire-proof material for fire doors, windows and fire partitions of commercial buildings, hotels, theaters, hospitals, airports, computer rooms, station docks and other industrial and civil buildings with fire-proof separation requirements.
8, fire retardant coating
Fire retardant coating is a special kind of fire retardant protective coating. Solvent-based coatings composed of chlorinated rubber, paraffin wax and various flame retardant additives. It has good fire resistance. When coated on the surface of ordinary wires, it will expand in case of fire to produce 200 mm thick foam, which will be carbonized into a protective layer to isolate the fire source. It is suitable for fire protection of indoor and outdoor cables in high-grade buildings such as power plants and substations.
9, fire blocking materials
The fireproof plugging material is used to plug various penetrations, such as various openings formed when cables, air ducts, oil pipes and natural gas pipes pass through the wall (warehouse) and floor (a). The cable bridge is divided into sections to prevent the fire from spreading through these openings and gaps. It has fireproof function and is convenient to install. It includes organic fireproof plugging material, inorganic fireproof plugging material and fireproof bag.
10, fire protection package
The fireproof bag is mainly used for fireproof plugging of various cable through holes in industries such as electric power, communication, petrochemical, construction, ships, etc., which can effectively prevent the fire from spreading along the cable and avoid the loss of life and property to the maximum extent. The product has the characteristics of good ventilation performance at room temperature, acid and alkali resistance, water resistance, oil resistance, light weight and convenient use. When it meets fire, it expands and carbonizes rapidly, forming a fire barrier with a certain thickness and strength, and absorbing heat and energy in the process of expansion and carbonization.
1 1, fireproof plastic material
Fire-retardant plastic materials are mainly used for electrical appliances that can generate high heat energy and high temperature, such as printers and hot air cylinders. Fire rating is mainly achieved by modifying resin or adding different materials. The additive materials are usually glass fiber, calcium carbonate, etc. According to different proportions, resin is injected to form fireproof plastic materials.
The above is all the important contents of selecting fireproof materials for the underground fire of Shanghai Hongqiao Airport Terminal brought by Bian Xiao.