本文關(guān)鍵詞： 安全工程 高速列車 行李 熱釋放速率 燃燒特性 全尺寸試驗　出處：《安全與環(huán)境學(xué)報》2017年05期 　論文類型：期刊論文

【摘要】：以CRH1高速列車20 kg旅客行李為研究對象,采用家具量熱儀和全尺寸試驗研究了不同引火源功率、不同通風量等條件下行李點燃特性、熱釋放速率、質(zhì)量損失率、熱釋放總量、煙氣釋放速率等火災(zāi)參數(shù),總結(jié)了其燃燒行為及特性。結(jié)果表明:高速列車20 kg旅客行李燃燒特性易受通風量、引火源功率等火場環(huán)境影響;引燃時間為1~2 min,持續(xù)燃燒時間在27~35 min;熱釋放速率可達347.3 k W以上,因行李壓實較為緊密,燃燒不夠充分,產(chǎn)生大量高溫未完全燃燒氣體,極大程度增加列車車廂回燃性;質(zhì)量損失率較小,行李燃燒不充分;溫升速率快,最高溫度可達230℃;產(chǎn)煙量較大,透光率最低為35%;行李熱釋放總量THR隨著引火源功率增加而增大,最高可達到213 MJ,控制引火源功率是減小行李熱釋放總量THR的關(guān)鍵。
[Abstract]:Taking 20kg passenger baggage of CRH1 high-speed train as the research object, using furniture calorimeter and full-scale test, the characteristics of baggage ignition, heat release rate, mass loss rate and total heat release under different fire source power and different ventilation rate were studied. The combustion behavior and characteristics of high-speed train 20kg passenger baggage are summarized. The results show that the combustion characteristics of 20kg passenger baggage of high-speed train are easily affected by the environment of fire field such as ventilation quantity, ignition power and so on. The ignition time is 1 ~ 2 min, the continuous combustion time is 2735 min, the heat release rate can reach more than 347.3 kW, because the baggage compaction is relatively close and the combustion is not sufficient, a large amount of high temperature and incomplete combustion gas is produced, which greatly increases the combustibility of the train compartment. The mass loss rate is small, the baggage does not burn enough, the temperature rise rate is fast, the maximum temperature can reach 230 鈩，

本文編號：1507599