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Details of the news首页 > Corporate News > The basic concept of smoke control design in Chengdu phenolic composite air duct board factory

The basic concept of smoke control design in Chengdu phenolic composite air duct board factory

Source:http://en.cdhbjn.com/news346248.html       Begintime:2018-04-13 10:13:00

1. Simple fire damper: normally open, temperature fuse acts at 70 ℃ and the valve is closed; it can also be closed manually and reset manually.

2. Fire damper: normally open, temperature fuse acts at 70 ℃ and the valve is closed; it can also be closed manually and reset manually. When the valve is closed, an electric signal can be sent to the fire control center. The combination of the fire damper and the ordinary shutter vent can form the fire vent.

3. Smoke and fire damper: normally open, the temperature fuse acts at 70 ℃, and the valve is closed; it can also be manually closed, and the manually reset fire control center can close the valve through the (DC24V) actuator according to the fire alarm signal detected by the smoke sensor; after the valve is closed, the feedback electric signal can be sent to the fire control center.

4. Smoke exhaust valve: normally closed. In case of fire, the smoke sensor sends out fire alarm signal. The control center opens the valve through the (DC24V) actuator for smoke exhaust. It can also manually open and reset the valve. When the valve is opened, an electric signal can be sent to the fire control center. It can also be linked with other equipment. The combination of smoke exhaust valve and ordinary shutter or plate type air outlet can form smoke exhaust air outlet.

5. Smoke and fire damper: it is normally closed. In case of fire, the smoke detector sends out a fire alarm signal. The control center opens the valve for smoke exhaust through the (DC24V) actuator. It can also manually open and reset the valve. When the valve is opened, an electric signal can be sent to the fire control center. It can also be linked with other equipment. When the temperature in the flue reaches 280 ℃, the temperature fuse acts and the valve closes automatically. When the valve is opened, an electric signal can be sent to the fire control center.

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6. Atrium: the length of the short side (radius) of the atrium shall not be less than 6m, and the minimum projection area of the connected space shall not be less than 100m2, and the number of shared floors shall not be less than 3, and the indoor shared space with the top cover shall be provided.

7. The difference between evacuation passage and refuge passage:

Evacuation Corridor: a safe passage for passing and evacuation. There are smoke exhaust requirements, no smoke control requirements. The evacuation walkway includes the refuge walkway.

Refuge walkway: a passageway with solid firewalls and smoke prevention facilities on both sides of the passageway, which can be safely evacuated to the emergency exit. And can not be shared with other functional areas of smoke prevention facilities, regardless of fire zones.

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The basic concept of smoke control design in Chengdu phenolic composite air duct board factory


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