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一、引言 强化燃烧是多年来人们一直追求的目标之一。近年来一些研究者用煤粉射流的对冲来强化煤的燃烧,取得了一定的效果。但是对射流对冲燃烧方式的机理和工作特性的研究,以前的分析模型都比较简单,也没有探讨对冲燃烧方式对劣质煤的适应性。本文作者在所建的高强度燃烧试验台上对分宜劣质烟煤进行了燃烧试验,测量了燃烧器二维等温模型的湍流场,并对燃烧器的二维模型和三维两相等温流场进行了数值计算。
I. INTRODUCTION Strengthening combustion is one of the goals that people have been pursuing for many years. In recent years, some researchers have used pulverized coal jet hedging to strengthen the combustion of coal, and achieved certain results. However, the research on the mechanism and working characteristics of jet-hedging combustion mode is simpler and the analysis of hedonic combustion mode is not suitable for the poor-quality coal. The author carried out the combustion test on the substandard low-grade bituminous coal on the built high-intensity combustion test bench and measured the turbulent flow field in the two-dimensional isothermal model of the combustor. The two-dimensional model and three-dimensional two-phase isothermal flow field of the combustor The numerical calculation.