【摘要】 本文概述了瓦斯煤尘爆炸火焰光谱实验研究的重要性,我们在弱爆炸和探测器小视场角的条件下,利用自己研制的多波道仪,在一端开口的Φ200cm×2900cm大型管道里,得到了CH4、空气和煤尘的混合物在不同状态下,特征波长λ等于0.8875、1.000、1.505、2.801和4.346微米(μ)的绝对辐射强度及其有关的变化规律,对结果进行了分析讨论,并与国外实验结果进行了对比,根据测量λ=4.346μ绝对辐射强度和我们选择的黑体辐射模型,获得了爆炸火焰的温度,该项研究不仅在工业中具有重要意义,而且对燃烧和化学动力学的研究也具有参考价值。更多还原

【Abstract】 This paper summarizes the significance on the experimental research for explosion flame spectrum of methane with coal. At weak explosion and a iittle angle of field of view, by use of multiwave channel detector of our development in large-scale tube φ200 cm×2900 cm of one-end opening we have obtained absolute radiation intensity and related regularity of change for characteristic wavelengths with mixture of methane, air and coat dust at different states. The experimental results have been discussed and compared with foreign ones. According to measured absolute radiation intensity for wavelength 4.346 μ and selected radiation model of blackbody, the temperature of explosion flame has been obtained. This research not only is of great importance to industry but also is of reference value for study of flame and chemical dynamics.更多还原