Fire rolling shutter door refers to the door that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. It is a fire compartment with certain fire resistance, such as fire compartment, evacuation staircase, vertical shaft, etc. How are the fire rolling shutter doors divided according to the normal open state? Now the installation and maintenance personnel of Jinan fireproof rolling shutter door will explain it to you!
The fire rolling shutter doors are divided into three types according to the normal open state:
One is normally open and automatically closed in case of fire, which is called normally open fire rolling shutter door;
One is usually closed. When someone walks around, the door should be pushed to open. After walking, the door will automatically close under the action of the door closer. If it returns to the closed state, it is called a movable fire rolling shutter door.
On the other hand, it is usually kept closed, and only authorized people can pass through. In an emergency, it automatically releases the fire rolling shutter door to let people pass, which is called a normally closed fire rolling shutter door. The difference of opening state is the key to influence the function of fire rolling shutter door.
However, we often see that there are many problems in the use of fire rolling shutter doors, leading to fire when the fire can not play a role.
1. The inspectors shall be composed of professionals, and the inspection work shall be carried out by experienced technicians who are familiar with subway conditions.
2. The inspection can be carried out by visual inspection, ear listening and hand touching, supplemented by corresponding tools and instruments.
3. The general rolling shutter door, fire rolling shutter door, industrial lifting door, electric telescopic door, sliding gate and electric sensing door must be operated, inspected and debugged normally after each item inspection.
After the fire, the fireproof rolling shutter door plays a role in blocking the fire and allowing the trapped people to escape, so we should pay more attention to the maintenance of it. The above is the little knowledge about the fireproof rolling shutter door compiled by the manufacturer of the fireproof rolling shutter door. I hope it can help everyone. More relevant content will come to our website http://www.jnyuqilin.com Consult!