How the steel smoke curtain works and what it looks like

Everyone knows the harm of fire. In addition to the loss of property and the tragic casualties of personnel, only a few of the personnel who died in the fire were burned to death by the fire, and most of them were choked to death or fainted by smoke. According to statistics, among all the deaths in fires, about 3/4 of them were caused by inhaling harmful and dangerous smoke. Therefore, when a fire occurs, in addition to controlling the spread of the fire, it is very necessary to be able to effectively and quickly remove the smoke. Then the necessity of steel smoke curtain is obvious.

Steel smoke curtain is a very common fire-fighting equipment. When a fire occurs, it is necessary to effectively separate the smoke and provide precious time for people to escape and evacuate. This type of fire-fighting equipment is directly fixed on the roof. It is not like the movable smoke curtain in the normal safety. It is hidden and will only be lowered when there is smoke in the fire. In our daily life, compared with fire-fighting equipment such as windows and doors, many people know little about this type of steel smoke curtain, but they are good at the function and effect of this type of fire-fighting equipment in fire. In order to let you better understand the steel smoke curtain equipment, let's follow the steel smoke curtain manufacturer Saduqi to understand its function in fire prevention and smoke curtain.

Steel smoke curtain is common in large spaces such as shopping malls, office buildings and warehouses. It refers to a smoke curtain partition measure made of non-combustible materials, vertically installed under the building ceiling, load-bearing beams or ceilings, which can form a certain smoke storage space in the event of a fire. In the event of a fire, the steel smoke curtain can effectively block the flow of smoke under the building ceiling and create a smoke storage bin that is beneficial to the smoke exhaust system. The height requirement must not be less than 500mm.

Steel smoke curtain is different from fire doors. The steel smoke curtain as the main body directly has the function of fire prevention and smoke curtain.

From the principle of the fireproof and smokeproof function of steel smoke curtain, it is relatively simple. Its specific content is that when the smoke exhaust system reaches a certain distance and height, it can effectively prevent the smoke flowing horizontally under the building roof, so as to improve the smoke exhaust system effect in the smokeproof partition. At the same time, the device also has corresponding smoke exhaust system equipment. Under the dual action, it can better play the role of fire prevention and smoke curtain, and play a positive role in ensuring the safety of the people.

Steel smoke curtain

Where should the steel smoke curtain be installed:

1. Rooms in Class C factories with an area of ​​more than 300 square meters or corridors exceeding 40m.

2. Areas with an area of ​​more than 500 square meters and no natural objects (such as beams) to block smoke must be equipped with smoke curtain.

Smokeproof partition

3. The site or location where the exhaust system is set should be divided into smokeproof partitions using smoke curtain, structural beams and partition walls. Smoke partitions cannot exceed the evacuation exit

4. The depth of smoke curtain partitions such as smoke curtain walls cannot be lower than the thickness of the smoke storage bin. For indoor spaces with ceilings, when the ceiling holes are uneven or the opening rate is less than or equal to 25%, the height of the indoor space in the ceiling cannot be included in the thickness of the smoke storage bin.

5. In buildings equipped with smoke exhaust systems, smoke curtain walls and other equipment should be installed at the openings where stairs and escalators pass through the reclaimed concrete floor.

6. The maximum allowable total area and the maximum allowable length of the long side of smoke partitions in commercial buildings and public buildings should meet the requirements. When public buildings use natural exhaust systems, the length of the long side of the smoke partition cannot exceed 8 times the height of the indoor space in the building.

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