W型火焰燃烧的实验研究  

EXPERIMENTAL STUDY OF W-SHAPE FLAME BOILER WITH HOT-STATE

作　　者：余战英[1] 谭厚章[1] 徐通模[1] 惠世恩[1] 

机构地区：[1]西安交通大学能动学院,西安710049

出　　处：《工程热物理学报》2004年第S1期233-236,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金重大研究计划资助(N.90210029)

摘　　要：本文设计了1 MW“W型”火焰煤粉燃烧实验台,并对焦作无烟煤进行了热态试验,分析了炉膛最高温度(火焰中心)的位置对W火焰的稳定形成的重要性,通过实验测得了其合理的相关位置。实验结果表明: W型火焰燃烧有很强的低负荷稳燃性,特别适合于低挥发份煤的燃烧。当火焰中心位置处于最下层二次风处时,炉内才能形成较好的W火焰;下炉膛中前后墙的壁面热负荷较为均匀,而左右墙的壁面热负荷分布呈“中间温度高两边温度低”的特性;上炉膛左右墙与前后墙的壁面温度分布基本一致。A l MW W-shape flame test set is estabhshed and the Hot-state experiment was carried with JiaoZuo anthracite coal. By the analysis, the location of the highest-temperature zone is very important for the formation of W-shape flame. And the test results show that the W-shape flame is very suitable for the anthracite coal combustion, and will be formed fully when the flame center located below the center of the F staged air, the wall temperature on front and back walls is evenly distributed along the wall widt...

关 键 词：W型火焰 热负荷 无烟煤 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]