Fire shutter refers to the shutter that can meet the fire resistance limit specified in the code within a certain period of time. It is divided into two types: steel shutter and organic cloth shutter. It is mainly used to replace the firewall and fire partition wall, and is installed at the opening of the wall with fire separation. Fire shutter can also be installed around the atrium for fire separation.

Let's talk about its setting requirements.

What are the main ones:

1. When the fire shutter is installed, there should be enough clearance due to expansion and deformation in the guide rail to ensure the displacement of the guide rail in the vertical direction when the fire occurs, and the fire shutter can fall normally.

2, in order to ensure that the fire shutter can play its role in the event of a fire, the power mechanism of the fire shutter should be closed with a metal shell to ensure that it is not barbecued by fire;

3, fire shutter should have the function of automatic control, manual control mechanical emergency control, and should have the function of opening and closing on both sides of the fire shutter, at the same time, it should be set to automatically close by its own weight in case of fire;

4. The gap between the fire shutter and the column wall should be blocked with fire blocking material to ensure that it does not smoke or fire, which can prevent the expansion and spread of the fire;

5. When the fire shutter is installed on the opening of the firewall and fire partition, if the fire shutter is used for fire integrity testing, an automatic sprinkler system shall be set up for protection according to the requirements of the specification, and the spraying time shall be subject to the fire resistance time of the replaced firewall or fire partition. When the fire shutter meeting the requirements of the specification is used as the testing condition, water spraying protection may not be adopted;

6, fire shutter can not have obstacles within 0.5 meters around, so as to avoid fire, fire shutter can not be closed or closed lax;

7, located in the evacuation aisle fire shutter, should have the function of two steps down, the first step, smoke detector alarm, fire shutter down to 1.8 meters from the ground, the second step, when the temperature detector alarm, fire shutter down to the ground.