本文選題：爆炸力學(xué)　切入點(diǎn)：管道長度　出處：《爆炸與沖擊》2016年04期

【摘要】：以甲烷/空氣混合物為研究對象,開展了連通容器氣體泄爆影響因素的實(shí)驗(yàn)研究。結(jié)果表明:連通容器泄爆片泄爆時(shí),隨著破膜壓力和量綱一泄壓比的減小,大、小球容器的最大泄爆壓力均增大;在等量綱一泄壓比條件下,隨著連接管道長度的增加,傳爆容器的最大泄爆壓力增大。連通容器無膜泄爆時(shí),大球點(diǎn)火條件下,無論管長如何,起爆容器和傳爆容器均比單個(gè)容器最大泄爆壓力大。小球點(diǎn)火條件下,當(dāng)管道長度為0.45 m時(shí),起爆容器和傳爆容器的最大泄爆壓力均小于單個(gè)容器。連通容器無膜泄爆且量綱一泄壓比相同時(shí),當(dāng)管道長度為0.45 m時(shí),大、小容器內(nèi)的最大泄爆壓力基本相等;當(dāng)管道長度為2.45 m時(shí),大容器點(diǎn)火時(shí),傳爆容器最大爆炸壓力大于起爆容器,但小容器點(diǎn)火時(shí),起爆容器最大泄爆壓力大于傳爆容器;當(dāng)管道長度為4.45和6.45 m時(shí),傳爆容器最大泄爆壓力均大于起爆容器。
[Abstract]:Taking methane / air mixture as the research object, the experimental study on the influence factors of gas explosion in connected vessel was carried out.The results show that the maximum venting pressure increases with the decrease of film breaking pressure and dimensionality pressure ratio, and increases with the increase of the length of the connection pipe under the condition of equal dimension and one discharge pressure ratio.The maximum venting pressure of detonation vessel is increased.Under the condition of large ball ignition, the maximum venting pressure of detonation vessel and detonation transmission vessel is higher than that of single vessel, regardless of the length of pipe.When the length of pipe is 0.45 m, the maximum venting pressure of detonation vessel and transmission vessel is smaller than that of a single vessel.The maximum venting pressure in a large and small vessel is basically equal when the length of the pipe is 0.45 m, and when the length of the pipe is 2.45 m, the maximum venting pressure of the large vessel is almost the same, and when the length of the pipe is 2.45 m, the maximum venting pressure in the small vessel is basically the same.The maximum explosion pressure of the detonation vessel is greater than that of the priming vessel, but the maximum venting pressure of the detonation vessel is greater than that of the detonation vessel when the small vessel is ignited, and when the length of the pipeline is 4.45 and 6.45 m, the maximum venting pressure of the detonating vessel is higher than that of the priming vessel.
【作者單位】： 南京工業(yè)大學(xué)安全科學(xué)與工程學(xué)院江蘇省危險(xiǎn)化學(xué)品本質(zhì)安全與控制技術(shù)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金項(xiàng)目(50904037,51376088) 江蘇省高校自然科學(xué)基金項(xiàng)目(11KJA620001,10KJB620001) 江蘇省“六大人才高峰”高層次人才計(jì)劃資助項(xiàng)目(2014-XNY-007) 江蘇省高校“青藍(lán)工程”中青年學(xué)術(shù)帶頭人計(jì)劃資助項(xiàng)目(SJ201216) 南京工業(yè)大學(xué)爆炸科學(xué)與技術(shù)國家重點(diǎn)實(shí)驗(yàn)室開放課題資助項(xiàng)目(KFJJ16-03M)
【分類號】：O643.22

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