How do fire shutter doors work?
How do fire shutter doors work?
It is known that fire shutter doors can prevent the spread of fire, so how does it fire when fire breaks out? Here are five things to know:
1. When a fire occurs, the fire shutter in the middle of the fire control system under the control of, according to the preset program automatically put down (down), so as to achieve function, to prevent the spread of flame to other scope for the implementation of fire extinguishing win precious time.
2. When the fire, smoke sensor installed on the roof (smoke) first received smoke signals, report to the central control system at the same time, after the fire by identifying the central control system on fire area of fire shutter power, make the fire area of fire shutter downward at a certain rate. When the curtain goes down to about 1.5 meters from the ground, it will stop descending to facilitate the evacuation and evacuation of personnel. The fire resistant steel door stays in the center for a certain time and then continues down until it is closed.
3. The descending speed and intermediate residence time of fire shutter doors can be adjusted during installation.
4. In some cases, the building is not equipped with fire control central control system, fire shutter by means of fire control electric box of fire shutter fire shutter fire prevention regulations, to run the program. In this case, when the fire alarm occurs, the fire alarm received by the smoke sensor is transmitted directly to the fire control electrical box of the fire shutter door.
5. In the case of power failure, the fire shutter door can only be lowered by pulling the chain. Fire shutter door is equipped with manual, only one way down, cannot ascend.
Whether the fire shutter can effectively prevent the fire spreading.
There are a lot of places where you can apply fireproof rollers, and you should be worried about a problem, but it doesn't work. Let me introduce you:
The special grade fireproof roll curtain is an important fire fighting equipment in public places. It is a mechanical and electrical inductive fire protection products, so the installation of good fireproof rollers should always be in the normal state. In the process of application, special equipment should be used and maintained by special personnel, and must have the basic knowledge of electrician and machinery.
During the operation and operation, the operator shall not leave the operation address, and should pay close attention to the condition of opening and closing and the execution status. In order to avoid the failure of the travel switch, the shutter card dies, the motor is blocked and other causes are affected. The steel fireproof shutter of fire partition and fireproof interval is not used frequently, once the area attack fire, roll curtain should be put into use effectively. It is necessary to carry out automatic control of fireproof rolling curtain with linkage control and central control center.
