富氧燃烧烟气焓温特性分析  

Study on Flue Gas Enthalpy-temperature Characteristics of Oxy-fuel Combustion

作　　者：吴乃新[1] 汪丽芬[2] 王恩禄[2] WU Naixin WANG Lifen WANG Enlu(Shanghai Boiler Works, Ltd., Shanghai 200245, China Shanghai Jiaotong University, Shanghai 200240, China)

机构地区：[1]上海锅炉厂有限公司,上海200245 [2]上海交通大学,上海200240

出　　处：《能源研究与信息》2017年第2期88-91,共4页Energy Research and Information

摘　　要：针对富氧燃烧锅炉增加了尾部再循环烟气和空气分离单元抽取的氧气特点,比较了常规空气燃烧锅炉焓温表计算方法与富氧燃烧方式下焓温表计算内容的区别,分析了富氧燃烧锅炉循环烟气焓、分离氧气焓和炉膛进口热燃烧气焓随氧气的体积分数变化的特性,给出了富氧燃烧锅炉烟气焓温表的计算方法,为富氧锅炉热力计算提供了理论依据.In terms of the addition of recycled flue gas from the rear of boiler and separated oxygen from the air separation unit, comparisons were conducted between the calculation methods of enthalpy for conventional air-fuel combustion and those for the oxy-fuel combustion. The variation of recycled flue gas enthalpy, separated oxygen enthalpy and inlet gas enthalpy of the furnace with the oxygen concentration was analyzed in the oxy-fuel combustion boiler. And the calculation methods of flue gas enthalpy for oxy-fuel combustion was proposed, which could provide the theoretical basis for the thermal calculation of oxygen-enriched boiler.

关 键 词：空气燃烧方式 富氧燃烧 燃烧气 焓温表 

分 类 号：TK221[动力工程及工程热物理—动力机械及工程]