What kind of material does bright fire shutter have
What kind of material does bright fire shutter have
The role of fire shutter door, just like its name, is to prevent the spread of fire.
In fact, the fire mode of the fire shutter door is horizontal fire isolation fire in a certain space, and the fire shutter door is separated by curtain plate, seat plate, support, rolling, box and other structures, so its installation position is generally separated by firewall.
According to the material, the fireproof rolling shutter door can be divided into steel fireproof rolling shutter door, composite fireproof rolling shutter door, inorganic fireproof rolling shutter door and so on. According to the installation method, there are two kinds of fireproof rolling shutter door in the wall and against the wall.
If classified by opening direction, there are rolling shutter doors and side rolling shutter doors.
Principle of fireproof rolling shutter door
1. In office buildings, shopping malls and other places.
Generally speaking, the smoke detector can detect the fire signal faster than the temperature detector, and can also send out the alarm faster, so.
The first control signal is the alarm signal of the detector.
Under normal circumstances, the fire shutter will automatically control the descent according to the following steps. After the fire shutter receives the smoke detector alarm signal, the fire shutter door of the evacuation passageway will drop by 1.8 to promote people fleeing from the ground (building) surface, and the fire shutter door of other parts will drop to the bottom once; After a period of delay or temperature detector action. The roller shutter on the escape way drops to the bottom.
2. In case of fire and shutter action, the alarm signal, half down signal and bottom down signal of the shutter shall be fed back to the fire control room
3. In case of fire, the fire alarm signal shall be sent to the control room to control the automatic opening of water curtain solenoid valve to make the water curtain system work.
Although the fire shutter is equipped with dual power supply, but if the power failure. In case of fire, the rolling shutter door cannot be electrified. The consequences are unimaginable.
Therefore, the manual control device must be set on the rolling shutter, that is, under the action of manual traction, through the pull rope. Pull down the clutch of the shutter, release and open the brake. The shutter is closed by self weight sliding. In the design and installation, the release force should not be too dry, and a damping speed limiting mechanism should be set to make the rolling shutter drop at a constant speed.
It should be said that as long as it is fireproof material and does not support combustion, it can pass the fire inspection. So from this point, there is no problem with plastic steel doors and windows.
Plastic steel doors and windows are made of profiles and reinforced steel lining, which are fireproof materials.
If the budget is relatively large, we can consider using broken bridge aluminum alloy profiles and metal materials. Of course, they are completely fireproof.
