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可换向百叶窗煤粉浓缩器的结构优化研究和应用
引用本文:管晓艳,孙绍增,郭洋洲,孙锐.可换向百叶窗煤粉浓缩器的结构优化研究和应用[J].节能技术,2011,29(1):15-19.
作者姓名:管晓艳  孙绍增  郭洋洲  孙锐
作者单位:哈尔滨工业大学燃烧工程研究所,黑龙江,哈尔滨,150001
基金项目:国家863高技术基金项目(2007AA05Z336)
摘    要:针对现有切圆燃烧角部风箱锅炉采用微量油直接点火水平浓淡煤粉燃烧技术时,锅炉两个角的油枪(双炉膛锅炉中是4个角的油枪)受空间的限制只能布置在淡煤粉气流侧而无法实现锅炉有效点火以及节约燃料油潜力没有充分发挥的问题,研发了可换向百叶窗煤粉浓缩器。该浓缩器结构简单,易于调节,可在锅炉运行过程中改变浓淡煤粉气流方向,实现锅炉正常点火启动并节约燃油。采用数值模拟方法对可换向百叶窗煤粉浓缩器结构进行了优化,并确定了结构优化方案。对某电厂300MWe锅炉下层煤粉燃烧器改造后的一次风喷口速度分布进行了测量,在点火启动工况和正常运行工况下,双向浓淡风量比满足设计要求,验证了可换向百叶窗煤粉浓缩器的可靠性。

关 键 词:百叶窗  煤粉浓缩器  可换向  点火

Study on Structural Optimization and Application of Reversing Louver Coal Concentrator
GUAN Xiao-yan,SUN Shao-zeng,GUO Yang-zhou,SUN Rui.Study on Structural Optimization and Application of Reversing Louver Coal Concentrator[J].Energy Conservation Technology,2011,29(1):15-19.
Authors:GUAN Xiao-yan  SUN Shao-zeng  GUO Yang-zhou  SUN Rui
Affiliation:GUAN Xiao-yan,SUN Shao-zeng,GUO Yang-zhou,SUN Rui(Research Institute of Combustion Engineering,Harbin Institute of Technology,Harbin 150001,China)
Abstract:The oil guns of two corners(four corners in the double furnace) have to be arranged at fuel-lean side owing to the space constraints when the boiler combustion system combined horizontal bias combustion(HBC) technology with pulverized coal direct burning technology with small oil nozzle.It will result in the problem of invalid ignition and startup of the boiler and fuel waste.Thus a novel reversing louver coal concentrator was developed.This concentrator has advantages of simple configuration,easy operation...
Keywords:louver  coal concentrator  reversing  ignition  
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