水平浓淡燃烧器出口气固浓淡射流的混合特性研究.pdfVIP

第23 卷 第7 期 中 国 电 机 工 程 学 报 Vol.23 No.7 Jul. 2003 2003 年7 月 Proceedings of the CSEE ©2003 Chin.Soc.for Elec.Eng. 文章编号：0258-8013 (2003) 07-0178-05 中图分类号：TK222 文献标识码：A 学科分类号：4702040 水平浓淡燃烧器出口气固浓淡射流 的混合特性研究 周 昊, 杜黎龙, 王正华, 郑立刚, 岑可法, 樊建人 (能源清洁利用和环境工程教育部重点实验室，浙江大学热能工程研究所，浙江 杭州 310027) THE DIFFUSION CHARACTERISTICS OF THE HORIZONTAL FUEL RICH-LEAN GAS-SOLID BURNER FLOW ZHOU Hao, DU Li-long, WANG Zheng-hua, ZHENG Li-gang, CEN Ke-fa, FAN Jian-ren (Clean Energy and Environment Engineering Key Laboratory of MOE, Institute for Thermal Power Engineering, Zhejiang University，Hangzhou 310027, China) ABSTRACT: When a gas-solid flow jet flow through a 虑。该文通过气固两相模化实验，采用基于光学波动法的激 horizontal fuel rich-lean burner, it will bifurcate into rich and 光光纤探针对水平浓淡气固两相射流在燃烧器出口外浓淡 lean two flows on a horizontal plane with the rich one on the 两股射流的混合特性进行了试验研究，结果表明水平浓淡燃 side of upstream and facing the fire ball in the furnace, while 烧器出口气固两相射流的浓淡分离效果能在较长的射程内 the lean on in the downstream and leeward the fire ball to 得以维持，从而保证了浓淡燃烧的优点。 obtain the effects of flame stability, slagging-prevention, 关键词：气固两相射流；浓度测量；水平浓淡燃烧 corrosion controlling and NO emission reduction. However, it x might be doubted if the rich and lean stream would mix 1 引言 together soon because there is only a thin partition wall 水平浓淡燃烧技术将燃烧器出口煤粉射流分为 between them at the outlet of the burners. If so, that will lead 浓淡两股，浓煤粉气流靠向火侧布置而淡煤粉气流 to an effect in getting loss in advantages due to the bifurcation