一、引言 具有火焰稳定船的直流煤粉燃烧器是一种新型的高效低污染燃烧器,已成功地应用于电站煤粉锅炉上。实践表明,它不仅能降低锅炉的启动点火用油,使煤粉锅炉在低负荷下稳定燃烧,而且能减少NO_x的排放量。以往对该燃烧器的研究主要着重于工业应用,还未对其内部湍流流场进行全面地实验研究。 I. INTRODUCTION The DC pulverized coal burner with flame stabilization vessel is a new type of high efficiency and low pollution burner which has been successfully applied to pulverized coal boilers in power stations. Practice shows that it can not only reduce the starting of the boiler ignition oil, pulverized coal boilers in stable combustion under low load, but also reduce NO x emissions. In the past, the research on the burner mainly focused on industrial applications, and the turbulent flow field inside the turbine had not been fully studied experimentally.