We use many fire smoke exhaust pipes in our daily life. The fire smoke exhaust system itself belongs to the important object of the public. However, the requirements for fire smoke exhaust and ventilation pipes are also very high. Generally speaking, strictly speaking, when selecting fire, smoke exhaust and ventilation ducts, the first consideration is flame retardancy. As we all know, fire fighting work is carried out in the environment of high temperature or even open fire, so the fire resistance and flame retardancy of ventilation pipes need to be considered. However, does the fire smoke exhaust pipe need fire prevention and insulation?
1. The smoke exhaust pipe can be insulated, because according to relevant requirements, especially some smoke exhaust pipes, the surrounding temperature may be relatively high. If the setting requirements cannot be met, protective measures shall be taken in combination with the pipe spacing. If the requirement of 20cm cannot be met, thermal insulation protection shall be taken.
2. Some smoke exhaust pipes do not need heat insulation. If other conditions meet the requirements and indoor flue gas can be discharged outdoors, there is no need to conduct thermal insulation treatment or install ordinary exhaust pipe.
In fact, the fire exhaust pipe needs fire protection and thermal insulation treatment, which plays an important role in the use process.
How to control the common air outlet of basement exhaust and smoke exhaust? Can you electrically control the closing of air vents in different smoke prevention zones? When the fire is confirmed, it shall be able to turn on the smoke outlet and smoke exhaust fan in the smoke exhaust area, and automatically turn off the ventilation and air conditioning system irrelevant to smoke exhaust.
1. Multiple smoke exhaust zones share the smoke exhaust system. In this case, the electric valve + smoke exhaust outlet is better. Usually, the exhaust is always open, and the electric valve set on the branch pipe of the smoke exhaust zone without ignition point is closed on fire. If the air outlet exceeds 280 degrees, it is fused and closed. If the smoke diffuses to other smoke prevention zones, open the electric valve on the branch pipe of this smoke prevention zone
2. Generally, the basement of a residence is used for storage and is divided into small storage rooms. The smoke exhaust system is shared. A set of system is responsible for one or two smoke prevention zones, and the smoke diffuses quickly. The valves are opened and closed back and forth. It is better to use all open smoke exhaust outlets. It is usually open for exhaust, and all fire are opened, and closed at more than 280 degrees.