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A brief introduction to the basic concept of smoke prevention and exhaust design by the Chengdu phenolic compound wind pipe plate manufacturer

Source:http://www.cdhbjn.com/news/740.html       Begintime:2018-04-13

Chengdu phenolic composites duct board manufacturers introduced basic concepts in the design of smoke prevention

1, simple fire valve: normally open, 70 DEG C temperature fuse action, the valve is closed; it can be manually closed, manual reset.

2, the fire valve: normally open, 70 DEG C temperature fuse action, the valve is closed; it can be manually closed, manual reset. After the closure of the valve can send electrical signals to the fire control center. The fire valve with ordinary shutter combination, may constitute a fire outlet.

3, smoke dampers: normally open, 70 DEG C when the temperature fuse action, the valve is closed; it can be manually closed, manual reset fire control center according to the smoke alarm signal from the probe through (DC24V) actuator to close the valve after the valve is closed; a feedback signal to the fire control center.

4, exhaust valve: normally closed, fire, smoke, fire probe signal, the control center (DC24V) executive is to open the valve exhaust, can also manually open the valve, manual reset. After opening the valve can send messages to the fire control center. Can also be linked with other equipment. Exhaust valve with ordinary louver plate or tuyere combined, can form a smoke outlet.

5, smoke damper: normally closed, fire, smoke, fire probe signal, the control center (DC24V) executive is to open the valve exhaust, can also manually open the valve, manual reset. After opening the valve can send messages to the fire control center. Can also be linked with other equipment. When the flue temperature reaches 280 DEG C, the temperature fuse action, the valve automatically closes. After opening the valve can send messages to the fire control center.

 QQ 20180206105131.png screenshot

6, the atrium atrium (radius): short side length not less than 6m, the minimum projection area and connected space of not less than 100 square meters, the number of not less than 3 share, and with the cover of the indoor space.

The difference between the 7, evacuation channel and asylum aisle:

The evacuation passage: safety evacuation passageway. There is no smoke, smoke prevention requirements. The evacuation aisle contains asylum aisle.

Asylum aisle: channel on both sides of a solid firewall and smoke control facilities, safe evacuation to safe exit channel. And not and other functional areas with smoke facilities, no fire zone.


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