For shutter can not play a role under the condition of no power supply problem, the relevant units have developed a without electricity or cut off the power supply depends on the temperature fuse open reduction under the condition of the clutch, make the fire doors closed at a constant speed by self weight, isolation of the fire place "" fire shutter fusing release, can make the fire shutter in the case of no electricity, no one can still play a proper role.

    The common steel fire shutter needs to be protected by the protective cooling water curtain to meet the requirement of fire separation. The protective cooling water curtain shall adopt an independent system with no less than 3h. Specific practices for the fire doors on both sides (may be) to the fire on both sides or one side (one side by the fire, such as escalators openings or atrium), under the ceiling installation wall type automatic sprinkler, sprinkler spacing of 2 ~ 2.5 m, toward the shutter. Water spray intensity is specified in section 5.0.10 of the "self-spraying specification".

    The cooling water consumption of common fire shutter is larger. The shutter, such as total length of 30 m height of 8 m, calculate the cooling water consumption is about 27 L/S, equivalent to a dangerous level Ⅱ automatic sprinkler system in the water. In large engineering, a fire protection partition with a total length of tens of meters or even hundreds of meters is often encountered. The water consumption of the protective cooling water curtain is very high in the fire service water. Water consumption in order to solve this problem, in recent years developed a small steam fog type steel fire shutter, fire shutter evaporative aerosol mist, and does not need to spray protection dual-track double inorganic composite fire shutter shade is super fire shutter, etc.

    Because the fireproof roll that is set here does not affect the evacuation in the fire emergency situation, it is completely possible to take a step down control. Take the fire shutter around the escalator as an example, one or two dedicated smoke detectors can be set on the outside of each roll. In the programming, the design of any two special smoke detector formation and door alarm, the linkage around fire shutter step down to the end. There is no smoke and temperature probe set to simplify the system and reduce the cost. In addition, due to the importance of fire shutter, setup linkage control is not only meet the requirements of its operating reliability, should be in the fire control room fire shutter for centralized management, and set up emergency descend fire shutter control button manually.

    With the increase of our fire awareness, the need for fire protection equipment is gradually increasing. Fire shutter, it is mainly used in a product of our shops, because its use is very convenient, so when we install about it, we should pay attention to some kind of problem? Look at our summary.