We all know that the fire shutter door can well block the extension of the fire, so how does it prevent fire when the fire occurs? Here are five points for us:
1. when a fire occurs, the fire-proof shutter door, under the control of the fire control system, is put down (down) according to the pre-set procedure, and then reaches the effect of obstructing the flame from extending to other scales. Fight for a precious moment for fire rescue.
2. When a fire occurs, the smoke sensor installed on the roof receives the smoke signal first, alarm the central control system together, and the fire control system is identified and connected to the fire shutter door power supply in the fire area. Make the fire-proof curtain down at a certain speed. When the curtain goes down to about 1.5 meters above the ground, stop the downlink to facilitate the dispersion and evacuation of personnel. Fire-proof steel doors stay in the center for a certain time, and then continue down until closed.
3. the downlink speed and center stay time of the fire-proof shutter door can be adjusted when installed.
4. on some occasions, the fire control center control system is not equipped in the building, and the fire prevention shutter door only uses the fire control electric box of the fire prevention shutter door to realize the fire prevention rule operation procedure of the fire prevention shutter door. In this case, when the fire occurs, the fire signal accepted by the smoke sensor is transmitted directly to the fire control electric box of the fire prevention shutter door.
5. in the case of power failure, can only pull the chain to put down the fire-proof shutter door. Fire-proof shutter door equipment manual, can only one-way down, can not be improved.
Whether the fire curtain can be useful to prevent the fire from spreading
There are many local applications of fire shutters, we should be worried about one question, is it whether it works? Let's introduce:
Special fire curtain is an important fire fighting equipment in public places. It is a general function of machinery and electrical fire products, so the installation of good fire curtain should always be in normal condition. In the process of application, special equipment should be used and kept by special personnel, and have basic knowledge of electrician and machinery.
In the process of operation and operation, the operator must not leave the operation address privately, should pay close attention to the opening and closing situation and performance, in the opening and closing of the curtain under no one standing, walking. To prevent stroke switch failure, shutter jam, motor obstruction and other events. Fire-proof zone and fire-proof distance of steel fire-proof curtain is not always used again and again, once the area fire, the curtain should be put into use. It is necessary to control the fire shutter with linkage control and central control center control according to a set of control instruction program.