SCR烟气脱硝锅炉改造的应用

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英文篇名：The Application of Boiler Transformation in SCR Flue Gas Denitration Project 作者：史晓莉 英文作者：SHI Xiao-li;Guangzhou Tinci Sanhe Environmental Engineering Co.Ltd.; 关键词：省煤器改造 ; SCR ; 烟气脱硝 英文关键词：economizer reform;;SCR;;flue gas denitration 中文刊名：GCJS 英文刊名：Construction & Design for Engineering 机构：广州市天赐三和环保工程有限公司; 出版日期：2018-08-30 出版单位：工程建设与设计 年：2018 期：No.390 语种：中文; 页：GCJS201816069 页数：2 CN：16 ISSN：11-3914/TU 分类号：157-158

摘要

信源电厂1-3~#燃煤锅炉(3×410t/h)采用SCR脱硝工艺,对锅炉尾部受热面进行改造,将高温预热器出口烟气温度控制在SCR反应温度区间,并留出脱硝反应器烟道返回空间,使锅炉热效率不低于原设计效率,在设计煤种、100%BRL工况下,脱硝反应器进口烟气温度为376.3℃,脱硝效率高达91%。
        Xinyuan power plant 1-3~# coal boilers(3×410 t/h) adopts SCR denitration technology to reform the heated surface at the end of boiler, it control the outlet flue gas temperature f the high temperature preheater in the temperature zone of SCR reaction, and keep the flue gas return space for the denitration reactor. After modification is completed, the boiler thermal efficiency is not lower than before. When burning the design coal, in the 100% BRL operating condition, the SCR reactor inlet flue gas temperature is 376.3℃. The denitration efficiency is as high as 91%.

引文

[1]GB 13223-2011火电厂大气污染物排放标准[S].
    [2]罗江勇,吕新乐.锅炉低负荷工况下脱硝系统投运率提高的改造技术[J].中国电力,2016,48(11):138-141.