室內(nèi)火災(zāi)中非連續(xù)介質(zhì)著火時(shí)間研究
發(fā)布時(shí)間:2018-06-05 13:52
本文選題:室內(nèi)火災(zāi) + 非連續(xù)介質(zhì); 參考:《科學(xué)技術(shù)與工程》2016年35期
【摘要】:室內(nèi)發(fā)生火災(zāi)時(shí),和火源間隔一定距離的可燃物即非連續(xù)介質(zhì)突然發(fā)生著火燃燒的現(xiàn)象較為普遍,且具有較強(qiáng)的危害性。從非連續(xù)介質(zhì)著火的原因入手,通過(guò)將著火條件進(jìn)行量化,提出了非連續(xù)介質(zhì)著火時(shí)間的確定方法,即:非連續(xù)介質(zhì)著火時(shí)間為煙氣層和處于著火濃度下限的可燃揮發(fā)份接觸所需要時(shí)間與煙氣層溫度達(dá)到非連續(xù)介質(zhì)自燃點(diǎn)所需要時(shí)間的最大者,并通過(guò)實(shí)驗(yàn)驗(yàn)證了該預(yù)測(cè)方法和相關(guān)計(jì)算關(guān)系式的有效性,對(duì)火災(zāi)預(yù)防和火災(zāi)風(fēng)險(xiǎn)評(píng)估具有重要的指導(dǎo)作用。
[Abstract]:When there is a fire in the room, the combustion of combustible matter, that is, discontinuous medium, which is a certain distance between the fire source and the fire source, is common and harmful. Starting with the cause of discontinuous medium ignition, a method for determining the ignition time of discontinuous medium is proposed by quantifying the ignition condition. That is, the ignition time of the discontinuous medium is the longest time required for the contact of the flue gas layer and the flammable volatile matter at the lower limit of the ignition concentration and the time required for the flue gas layer temperature to reach the self-ignition point of the discontinuous medium. The validity of the prediction method and the correlation formula is verified by experiments, which plays an important role in fire prevention and fire risk assessment.
【作者單位】: 駐馬店市消防支隊(duì);
【分類號(hào)】:X932
【相似文獻(xiàn)】
相關(guān)期刊論文 前1條
1 牛貴來(lái);劉雪源;趙洪光;;高溫?zé)煔鈱訉?duì)室內(nèi)非連續(xù)介質(zhì)著火的影響[J];河南理工大學(xué)學(xué)報(bào)(自然科學(xué)版);2011年04期
,本文編號(hào):1982205
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