Compared with general rolling shutter doors, fire shutter doors have higher requirements on fire prevention, which should meet the national standard GB14102-2005 standard TF3 fire rating requirements. This product is widely used in various industrial and civil and public buildings that require measurement of temperature rise of back fire surface and low requirements for wind pressure resistance. Such as offices, supermarkets, commercial buildings, exhibition halls, underground garages, entertainment venues and other buildings fire partition. According to the provisions of the code, with the temperature rise of the back fire surface as the judging condition, the fire resistance limit of not less than 3H is a super fire roller shutter.

① Make full use of the heat absorption and vaporization of water, so that the cooling effect of the curtain surface is obvious.

With a certain pressure of water (0.25 ~ 0.4MPa), through the "tangential vortex" nozzle, the water atomization to a diameter of about 0.1mm small water droplets, shot to the curtain surface. Because the specific surface area of water increases, the heat absorption is rapid, and the evaporation is fast (the evaporation heat of water is about 2700 kcal/kg), the heat on the curtain surface is quickly taken away. There is almost no excess water flowing down, which also reduces the water damage caused by the fire. ② Water spraying intensity is small.

After many tests and tests, the spray intensity of the "water mist" is about 0.101 ~ 0.125 L/ s.m, which is 1/8-1/10 of the spray intensity of the automatic sprinkler system on both sides of the ordinary fire shutter, which provides an economical fire separation for the application of large space. Taking 2.1 as an example, the water mist type super fire roller curtain is set around the escalator, and the fire water consumption per unit time is only 6.2L/S ~ 7.8L/S, so the use of fire hydrant water source, the use of the original fire water consumption balance, or the appropriate selection of larger size of the fire pump can solve the problem, and the project investment saving and economic benefits are obvious.

③ The effect of eliminating fire smoke is good.

Water mist has a good effect of eliminating smoke and reducing ambient temperature, creating a good environment for personnel evacuation within the scope of water mist, making people clear, breathing smooth, vision good, and reducing fire casualties.

④ Water steam can effectively protect the transmission device of the fire shutter. When the fire is sprayed, the top of the fire shutter is surrounded by water vapor, which prevents the combustion and protects the normal operation of the electrical transmission device within the fire resistance limit time.