Fire door and normal door Fried egg test contrast effect
Look hard and solid door, filling the honeycomb paper, less than five minutes after heating can Fried eggs. The real fire door also heating, an egg, there is no change in about 10 minutes. A few days ago, changsha city public security fire control team by the open area of brigade in the jurisdiction to carry out fire control inspection found that the hotel use unqualified fire doors, and the scene "Fried eggs" test the thermal insulation fire door and normal door.
Scene: sealing fire door doesn't close tightly without ornament
Exit of high-level office buildings, residential buildings have a fire door, during those trapped by fire safe exit to escape, fire door can block out smoke escape passage, to ensure the safety of personnel evacuation. But you see really fire fire door? Do you know how to test whether the fire door qualified? Recently, from the open area fire brigade inspection of the fire control safety of enterprises within their respective jurisdictions, on the second floor of a medium-sized hotel, inspectors found the export of security fire door no door closers, without fire sealing strip, closed order is bad.
"Fire doors should be closed at ordinary times, fire personnel when open the fire door through safe exit to escape, fire door, door closers, order and sealing strip is to ensure that the door closed completely cut off smoke to escape, to ensure the safety of personnel evacuation." Changsha to open fire brigade staff Chen Hao introduced. And the hotel's fire door all the trouble, can't completely closed after a fire, don't heat isolation of smoke.
Experiment: two doors and Fried eggs common door "soon"
To demonstrate the qualified fire door insulation, reporters follow inspectors arrived in changsha, hope door manufacturing co., LTD. Field experiment.
First of all, the staff in a fire door and a door of door of guard against theft that ordinary respectively on the shelf under the gas type, at the same time the ignition, heat 2 minutes later, at the same time in the same parts of the two doors were lay eggs.
After the 30 seconds, ordinary eggs start steaming on the door, and gradually spread out, the eggs on the fire door remains the same. With temperature rising, the common door eggs start Zi Zi, heated areas began to deformation hollows. Reporter with hand to test two doors the temperature of the heating parts, ordinary door than fire door is hot. After 5 minutes, ordinary door has Fried eggs, the eggs on the fire door is still not obvious.
From ignition to extinction, a total of 7 minutes, ordinary eggs over was on the door, the back has a golden colour. And eggs or on fire door and just shot.
"Ordinary door is filled inside the honeycomb paper, heated up soon after burning, heat insulation effect is poor. Inside the fire door is refractory material, heat insulation effect is very good." Changsha's manufacturing co., LTD., hope the security technology minister Liu Shikui explanation. Workers will be heated parts of the two doors were sawed, ordinary door honeycomb paper burning heat, filling are ordinary honeycomb paperboard. The fire door is heated parts in addition to have marks on the outer plate, in intact.
Fire you identify fire door
Appearance: the appearance of the fire door is relatively simple, no complicated process, are generally paint process or wenqi board decorative surface.
Hardware configurations: fire doors equipped with the above hardware, locks, hinges, etc.) is fireproof, additional fire door door with door closers, double doors equipped with line, ordinary doors are normal metal shapes.
Thickness: the thickness of the fire door armour ethylene-propylene three levels, in turn, 40 mm to 50 mm, 45 mm, more than ordinary door to 40 mm, slightly better door thickness can reach 45 mm.