学术
摘 要:
以煤粉浓缩预热低NOx燃烧器（PRP）为例，说明了通过组织高温烟气回流快速预热低风煤比的一次风煤粉气流，可以在燃煤锅炉上实现具有高稳燃和低NOx排放性能的高温空气燃烧．工业试验和应用表明：PRP燃烧器特殊的预热室结构可以有效控制一次风粉的预热，快速加热煤粉颗粒并使之在达到燃烧器喷口时接近着火温度，因而具有优异的煤种适应性、低负荷稳燃能力和低NOx排放特性，是在燃煤锅炉上实现高温空气燃烧的一种良好的燃烧器．[著者文摘]
文章出处:
《动力工程》-2008年28卷1期,107 -36-39,107页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1000-6761（2008）01-0036-04
Research on High Temperature Air Combustion Technology via Primary Air Enrichment and Preheating Burner
ZHANG Hal, JIA Zhen, MAOJian-xiong, LUJun-f （Key Laboratory for Thermal Science and Power Engineering of M Department of Thermal Engineering, Tsinghua University, Beiji u, LIU inistry of ng 100084 Qing Education, L, China）
Abstract:
Taking the primary air enrichment and preheating （PRP） burner as an example, it is shown that high temperature air combustion with high combustion stability and low NOx emission can be realized on the pulverized coal boiler by use of the high temperature reflow flue gas to rapidly preheat the primary air of low air-coal ratio. The industrial tests and applications indicate that the PRP burner has several characteristics, such as good adaptation to coal ranks, high combustion stability at low load and low NOx emission. It can effectively control the preheat of the primary air and rapidly preheat the pulverized coal to near igniting point before reaching the burner nozzle due to its specially designed preheat chamber. PRP burner is a practicable burner to realize high temperature combustion in pulverized coal fired boilers.[著者文摘]
Key words:
energy and power engineering; PRP burner; high temperature air combustion; preheating;stabilization combustion; low NOx emission
基金资助:
国家基础研究发展规划资助项目（2006CB200301）和国家自然基金资助项目（50576041）
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