富氧燃烧条件下锅炉燃料燃烧计算研究  

Fuel Combustion Calculation Analysis of Oxy-fuel Boilers

作　　者：闫凯[1] 张建文[1] 

机构地区：[1]上海锅炉厂有限公司,上海200245

出　　处：《锅炉技术》2013年第1期35-40,47,共7页Boiler Technology

基　　金：上海市科委项目(项目编号:11dz1203600);上海市优秀技术带头人项目(项目编号:11XD1421600)

摘　　要：以常规锅炉燃料燃烧计算方法为基础,对富氧燃烧锅炉的燃料燃烧计算方法展开研究。通过将富氧锅炉与常规锅炉的热力系统进行比较,建立了进行富氧锅炉燃料燃烧计算的基本模型。在此基础上首先提出了富氧燃烧条件下燃料所需理论助燃剂量和理论烟气量的计算方法,随后进行了考虑烟气再循环和不考虑烟气再循环2种条件下的实际烟气量的分析计算,其中包括各种烟气成分的体积量的计算,最后根据富氧燃烧锅炉热力系统的特点,推导出了富氧燃烧条件下烟气质量、烟气密度、飞灰质量浓度和烟气焓的计算公式。对富氧燃烧条件下锅炉的燃料燃烧计算进行了详细分析,为今后发展和完善富氧锅炉热力计算方法提供必要的理论基础。Based on the fuel combustion calculation method of air-fuel boilers,the detailed research on the fuel combustion calculation method of fuel combustion calculation of oxy-fuel boilers is carried out.The basic calculation model and the required hypothesis are proposed through the comparisons of thermal system between air-fuel boilers and oxy-fuel boilers.The theoretical combustion improver requirement and the theoretical quantity of flue gas are proposed. The calculations of the theoretical quantity of flue gas and the total one,including the calculation formulae of various gases in flue gas,are analyzed in the cases of with and without flue gas recirculation.The calculation methods of the quality of flue gas,the density of flue gas,the mass concentration of fly ash and the enthalpy of flue gas for oxy-fuel boilers are also proposed through the extension from air-fuel boilers.

关 键 词：锅炉 富氧燃烧 燃料燃烧计算 

分 类 号：TK222[动力工程及工程热物理—动力机械及工程]