火电厂燃煤锅炉系统湿量平衡分析与计算
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摘要
针对煤的有效热能降低、烟气管道和烟囱腐蚀严重,以及向环境中排放湿量过多等问题,对燃煤锅炉系统湿量来源进行分析,建立了锅炉燃烧系统湿量计算的基本模型。根据热力学基本原理和物料守恒原理,给出了燃煤锅炉系统湿量的计算方法。采用该方法对燃烧不同煤种锅炉的实际运行数据进行湿量计算分析比较。结果表明:通过理论分析计算得到的燃煤锅炉系统湿量与锅炉的实际运行时烟气湿量较吻合,所给出的燃煤锅炉系统湿量的计算方法可以用于锅炉燃烧系统的运行优化。
To solve the decline of the effective heat energy of coal,the corrosion of flue gas pipeline and the chimney,and emissions of excessive humidity to the environment,the paper analyzed the source of moisture in coal fired boiler,and set up the basic model of the boiler combustion system. Based on the thermodynamic principle and material balance principle,a method for calculating the moisture content of flue gas in a coal fired boiler system was given. This method was used to calculate and analyze the actual running operating data of different coal boiler. The results showed that: Through theoretical analysis and calculation,the flue gas moisture content of the coal fired boiler system was consistent with the actual operation of the boiler,and the calculation method of the flue gas moisture content could be used for the operation optimization of the boiler combustion system.
To solve the decline of the effective heat energy of coal,the corrosion of flue gas pipeline and the chimney,and emissions of excessive humidity to the environment,the paper analyzed the source of moisture in coal fired boiler,and set up the basic model of the boiler combustion system. Based on the thermodynamic principle and material balance principle,a method for calculating the moisture content of flue gas in a coal fired boiler system was given. This method was used to calculate and analyze the actual running operating data of different coal boiler. The results showed that: Through theoretical analysis and calculation,the flue gas moisture content of the coal fired boiler system was consistent with the actual operation of the boiler,and the calculation method of the flue gas moisture content could be used for the operation optimization of the boiler combustion system.
引文
[1]郑坤,刘森.浅谈火力发电厂电气节能措施[J].中国电业(技术版),2014(1):55-57.
[2]连银银.火力发电厂锅炉经济运行研究分析[J].科技与企业,2014,16:399.
[3]张军锋.火力发电厂总平面布置及其方案的优化[D].西安:西安建筑科技大学,2008.
[4]钱太莹.火力发电企业成本管理研究[D].北京:华北电力大学,2013.
[5]李飞.燃煤锅炉烟气含酸灰粒沉积特性与工程酸露点研究[D].济南:山东大学,2014.
[6]彭泽宏,楼波,孙超凡.含湿量对电除尘器内PM2.5除尘效率的影响规律研究[J].电站系统工程,2015(2):41-43.
[7]梁伟.含湿量测量法用于锅炉主要污染物总量减排监测技术研究[J].环保前线,2011(1):51-52.
[8]潘建明.干湿球法测量空气与烟气含湿量计算公式的推导和改正[J].环境与开发,1998,13(4):46-49.
[9]王戬.浓硫酸法测定燃煤锅炉的烟气含湿量[J].黑龙江环境通报,1996,22(4):18-19.
[10]杨书林.重量法和冷凝法测量烟气含湿量计算公式的改进[J].四川环境,1997,16(2):32-34.
[11]田毅.湿度测量标准—重量法湿度计[J].山西科技,2007(2):143-144.
[2]连银银.火力发电厂锅炉经济运行研究分析[J].科技与企业,2014,16:399.
[3]张军锋.火力发电厂总平面布置及其方案的优化[D].西安:西安建筑科技大学,2008.
[4]钱太莹.火力发电企业成本管理研究[D].北京:华北电力大学,2013.
[5]李飞.燃煤锅炉烟气含酸灰粒沉积特性与工程酸露点研究[D].济南:山东大学,2014.
[6]彭泽宏,楼波,孙超凡.含湿量对电除尘器内PM2.5除尘效率的影响规律研究[J].电站系统工程,2015(2):41-43.
[7]梁伟.含湿量测量法用于锅炉主要污染物总量减排监测技术研究[J].环保前线,2011(1):51-52.
[8]潘建明.干湿球法测量空气与烟气含湿量计算公式的推导和改正[J].环境与开发,1998,13(4):46-49.
[9]王戬.浓硫酸法测定燃煤锅炉的烟气含湿量[J].黑龙江环境通报,1996,22(4):18-19.
[10]杨书林.重量法和冷凝法测量烟气含湿量计算公式的改进[J].四川环境,1997,16(2):32-34.
[11]田毅.湿度测量标准—重量法湿度计[J].山西科技,2007(2):143-144.
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