Shutter doors, our most common place, should be the store, and with the continuous innovation of science and technology, many products have become more feature-rich. Super fire shutter doors are one of the products, today we will take a look at the relevant introduction of special fire shutter doors .
Super fire shutter door classification
The two types of curtain surfaces of steam-blown steel and evaporative steam-foam fire-retardant curtains are the same as single-panel steel fireproof roller blinds. The former adds a thin hole in the middle of the string-jointing section of each section of curtain. The wall steel pipe is provided with two soft rubbers and thin-walled steel pipes at the two ends of the curtain surface. When a fire breaks out, water flows through the rubber hose and leaks from the small hole. When it is heated and vaporized, it absorbs and takes away the heat from the sliver and cools it. The latter is to set a steel pipe on the side of the curtain back surface, drill holes in the steel pipe densely, when a fire occurs, water is sprayed on the curtain through the hole, down the flow, absorb heat, evaporation, so that The slats cool down.
Double-track double-curtain inorganic composite super fireproof rolling shutter door: The fireproof roller blind is a double-track double-curtain structure, and a certain thickness of air layer is arranged between two curtain surfaces. Each curtain consists of three layers of composite materials: Intermale fire-resistant fire-resistant cloth on the fire surface, heat-resistant radiation cloth or other high-temperature resistant cloth on the back fire surface, and specially treated reinforced aluminum silicate in the middle heat insulation layer. Refractory fiber blanket, curtain thickness of 10 ~ 20mm.
A long thin steel strip @ 300 ~ 600mm is set in the transverse direction of the curtain surface; 2mm stainless steel wire rope @ 1500mm is set in the longitudinal direction of the curtain surface; for anti-negative pressure, the curtain surface is reinforced at both ends of the guide rail, and the gap increases to "T. "Type structure prevents the negative pressure generated during a fire from causing the curtain surface to slide off the rail. The fire shutter has good heat insulation, fully meets the requirements of the "High Regulations" and does not require water protection. It is a new special fire shutter. At present, many places have been promoted and applied.
Super fire shutter door features
The curtain surface is made of inorganic fireproof cloth, radiation protection cloth, fireproof cotton, etc. Good flexibility, high tensile strength, resistance to corrosion and moisture, the surface can have a decoration effect. The curtain surface weight is 3.5 kg/m2, which is particularly suitable for large-span fire shutters. The opening and closing is sensitive and the noise is low. It can be turned on or off by the unit or controlled by the fire control.
Premium fire shutter doors
First, the fire shutter is tested according to the current national standard GB7633 "Fire Test Method for Doors and Rolling Blinds", including the determination of the judgment conditions including the temperature rise of the back surface;
The second is the same fire test according to GB7633, according to the provisions of the standard on the non-insulated protective layer of iron curtain free measurement of the back surface of the fire temperature rise provisions and product standards "steel fire curtain general technical conditions" (GB14102-93) The requirement is to determine the roller blind's fire-resistance limit roll-up only with the radiant heat intensity at a certain distance from the back-fire surface and whether the curtain surface is on fire. According to the non-insulated fireproof roller blind that does not include the fire surface temperature rise as the fire resistance limit judgment condition, the obtained fire resistance limit data is far more than the fire resistance limit of the heat insulation type fire shutter including the temperature rise of the backfire surface as the determination condition of the fire resistance limit. Much longer.
About the special fire shutter door , I introduced here, I hope to help you, more decoration information, do this site, so stay tuned.
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