| 机械加压送风防烟系统合理送风量的理论分析 |
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| 引用本文： | 程远平,朱国庆,陈亮,张孟君.机械加压送风防烟系统合理送风量的理论分析[J].消防科学与技术,2003,22(2):94-95. |
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| 作者姓名： | 程远平 朱国庆 陈亮 张孟君 |
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| 作者单位： | 1. 中国矿业大学,江苏,徐州,221008
2. 徐州市消防支队,江苏,徐州,221004 |
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| 基金项目： | 国家自然科学基金资助项目 (50 1 740 52 ) |
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| 摘 要： | 从着火房间内外压力分布及烟气流动规律出发，分析加压送风与烟气蔓延之间的关系，并由此导出打开加压部位时，能够有效地阻止烟气进入疏散路线和避难场所的平均风速范围约为2.0m/s～2.5m/s，此值远大于《高层民用建筑设计防火规范》条文说明中推荐的风速范围0.7m/s～1.2m/s，机械加压送风防烟系统设计应综合考虑火灾区域烟气的有效排放。
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| 关 键 词： | 机械加压 送风 防烟系统 送风量 高层建筑 火灾 |
| 文章编号： | 1009-0029(2003)02-0094-02 |
| 修稿时间： | 2002年12月10 |
Theoretical analysis of the reasonable air imput of mechanical ventilating and smoke protecting system |
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| CHENG Yuan-ping ,ZHU Guo-qing ,CHEN Liang ,ZHANG Meng-jun.Theoretical analysis of the reasonable air imput of mechanical ventilating and smoke protecting system[J].Fire Science and Technology,2003,22(2):94-95. |
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| Authors: | CHENG Yuan-ping ZHU Guo-qing CHEN Liang ZHANG Meng-jun |
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| Affiliation: | CHENG Yuan-ping 1,ZHU Guo-qing 2,CHEN Liang 1,ZHANG Meng-jun 1 |
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| Abstract: | According to the pressure differential distribution between inside and outside the fire compartment and the rule of smoke movement, this paper analyzed the relationship between mechanical ventilation and smoke spread and educed that the range of average wind velocity is from 2.0 m/s to 2.5 m/s which can effectively prevent the smoke into evacuation route and refuge when pressurization is on. The values of wind velocity are far beyond the range from 0.7 m/s to 1.2 m/s provided in Code for fire protection design of tall buildings. The design of mechanical ventilating and smoke protecting system ought to comprehensively consider effective smoke extraction in fire place. |
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| Keywords: | fires smoke mechanical ventilation smoke protection air imput |
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