發(fā)布時(shí)間：2018-02-25 06:27

  本文關(guān)鍵詞： 室內(nèi)步行街 三級(jí)排煙模式 熱煙試驗(yàn) 排煙效果　出處：《消防科學(xué)與技術(shù)》2017年09期 　論文類型：期刊論文

【摘要】：為研究三級(jí)排煙模式且頂部設(shè)有自然排煙窗的室內(nèi)商業(yè)步行街火災(zāi)煙氣蔓延特性,在步行街首層環(huán)廊位置進(jìn)行熱態(tài)發(fā)煙試驗(yàn)。結(jié)果表明:相比于兩級(jí)排煙,三級(jí)排煙模式下環(huán)廊排煙可有效阻止煙氣蔓延至步行街高大空間;一旦發(fā)生小規(guī)�；馂�(zāi)或產(chǎn)生低熱量煙氣時(shí),步行街頂部采用機(jī)械排煙方式比自然排煙方式具有明顯的排煙效果,但排煙風(fēng)機(jī)的延遲開啟易造成煙氣蔓延范圍擴(kuò)大。為了營(yíng)造安全的疏散條件,避免煙氣從環(huán)廊蔓延至步行街,應(yīng)增大環(huán)廊排煙設(shè)備的能力。
[Abstract]:In order to study the fire smoke spread characteristics of commercial pedestrian street with natural exhaust window at the top of the three-stage smoke exhaust model, a hot smoke emission test was carried out at the first floor of pedestrian street. The results show that compared with the two-stage exhaust smoke, Under the three-stage smoke exhaust mode, the annular exhaust can effectively prevent the smoke from spreading to the tall space of the pedestrian street; once there is a small-scale fire or low-calorie smoke, The mechanical smoke exhaust at the top of the pedestrian street is more effective than that of the natural one, but the delayed opening of the exhaust fan will result in the expansion of the spread range of the smoke. In order to create a safe evacuation condition, Avoid the spread of smoke from the ring corridor to the pedestrian street, should increase the capacity of the ring corridor exhaust equipment.
【作者單位】： 廈門市消防支隊(duì);福建省消防總隊(duì);
【分類號(hào)】：TU834

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本文編號(hào)：1533374