微油点火燃烧器煤粉流量分配比例的计算Calculation of Pulverized Coal Flow Distribution Ratio in Ting-oil Ignition Burner
丁历威,李凤瑞,张明,齐晓娟,李磊
DING Li-wei1,LI Feng-rui1,ZHANG Ming1,QI Xiao-juan1,LI Lei 2(1.Z(P)EPC Electric Power Research Institute
摘要(Abstract)：
微油点火技术的关键之一就是在一级套筒中形成一个高煤粉浓度区域,以利于煤粉着火。如何验证是否存在这个区域,对微油点火燃烧器的设计和应用尤为重要。根据微油点火燃烧器技术特点,结合点火试验和数值计算结果,提出火焰形状相似度对比法,量化数值计算精度。在精度达到要求的前提下,提出一种煤粉流量在多级套筒中分配比例的测量方法,已成功应用于准格尔发电厂2号炉微油点火燃烧器。
One of the keys of the tiny-oil ignition technology is to form a high concentration region of pulverized coal in the first sleeve,which can facilitate the ignition of coal dust.How to verify the existence of the region is very important for the design and application of tiny-oil ignition burner.According to its technical characteristics,in Combination with ignition test and numerical calculation result,similarity comparison method of flame profile is proposed to quantify precision of numerical calculation.When the precision meet the requirement,the measurement method of the distribution proportion of pulverized coal flow in the several sleeves was presented.The method has been successfully applied to tiny-oil ignition burner in unit 2 of the Zhunge′er power plant.
关键词(KeyWords)：
微油点火;燃烧器;煤粉;流量;分配;测量
tiny-oil ignition;burner;pulverized coal;flow;distribution;measurement
基金项目(Foundation):
作者(Author):
丁历威,李凤瑞,张明,齐晓娟,李磊
DING Li-wei1,LI Feng-rui1,ZHANG Ming1,QI Xiao-juan1,LI Lei 2(1.Z(P)EPC Electric Power Research Institute
DOI: 10.19585/j.zjdl.2013.01.011
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