论文部分内容阅读
利用移动式排烟机正压送风可以很好地解决大空间建筑发生火灾时的排烟问题。本文利用FDS模拟研究了大空间建筑发生火灾时排烟口与送风口尺寸之间的关系对排烟效果的影响,结果表明:随着排烟口面积的增大,排烟效果越来越好,但排烟效能逐渐下降,综合考虑排烟效果及实际情况,认为排烟口面积为送风口面积的2倍时即可取得较为理想的排烟效果,研究结论可以为消防部队火场排烟提供一定的参考。
The use of mobile exhaust fan positive air supply can be a good solution to large-scale fire in the building when the smoke problem. In this paper, FDS simulation was used to study the effect of the relationship between the exhaust port and the outlet size on the smoke exhaust effect in the fire disaster of large space buildings. The results show that as the exhaust port area increases, the smoke exhaust effect is getting better and better , But the performance of smoke evacuation gradually decreased. Considering the effect of smoke evacuation and the actual situation, it is considered that the smoke evacuation area can obtain the ideal smoke evacuation effect when the area of the smoke evacuation outlet is 2 times the area of the air diffuser. The research conclusion can provide smoke evacuation for the fire brigade Certain reference.