本文選題：木粉塵　切入點(diǎn)：最大爆炸壓力　出處：《中國安全生產(chǎn)科學(xué)技術(shù)》2017年06期 　論文類型：期刊論文

【摘要】：為研究粉塵質(zhì)量濃度、粒徑和點(diǎn)火延遲時間對木粉塵最大爆炸壓力影響,以桑木粉塵為對象,利用1.2 L的Hartmann管進(jìn)行試驗(yàn)。研究結(jié)果表明:最大爆炸壓力隨著粉塵質(zhì)量濃度的增加先增大后減小,隨著粉塵粒徑的增大而減小,隨著點(diǎn)火延遲時間的增大而增大。在單因素試驗(yàn)基礎(chǔ)上,運(yùn)用Design-Expert軟件對Box-Behnken所設(shè)計的響應(yīng)面試驗(yàn)方案分析,得到影響粉塵最大爆炸壓力大小順序?yàn)?點(diǎn)火延遲時間質(zhì)量濃度粒徑,同時Design-Expert軟件預(yù)測出最危險爆炸強(qiáng)度的試驗(yàn)條件為:質(zhì)量濃度840.24 g/m~3,粒徑260目,點(diǎn)火延遲時間12 s,最大爆炸壓力為0.511 775 MPa,經(jīng)檢驗(yàn),擬合性較好,為防爆設(shè)備本質(zhì)安全強(qiáng)度設(shè)計提供了一定的參考價值。
[Abstract]:In order to study the effect of dust concentration, particle size and ignition delay time on the maximum explosion pressure of wood dust, mulberry dust was taken as an object. The experimental results of 1.2L Hartmann tube show that the maximum explosion pressure increases first and then decreases with the increase of dust mass concentration, and decreases with the increase of dust particle size. With the increase of ignition delay time, on the basis of single factor test, the response surface test scheme designed by Box-Behnken was analyzed by using Design-Expert software. The order of the maximum explosion pressure was obtained as follows: mass concentration particle size of ignition delay time. At the same time, the test conditions of the most dangerous explosion intensity predicted by Design-Expert software are as follows: mass concentration 840.24 g / m ~ (3), diameter 260 mesh, ignition delay time 12 s, maximum explosion pressure 0.511 775 MPA. It provides a certain reference value for the intrinsically safe strength design of explosion-proof equipment.
【作者單位】： 西安建筑科技大學(xué)材料與礦資學(xué)院;
【分類號】：X928.7

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本文編號：1579203