燃气热水锅炉烟气余热利用及消白雾技术分析与热能计算

近年来随着节能、环保要求的逐渐提高,烟气余热利用与消白雾技术在燃气热水锅炉得以大量应用。本文简要说明了烟气余热及消白雾的技术原理,并通对烟气成分的分析,结合空气焓湿图计算公式,拟合计算烟气的凝结水量、含湿量、烟气比焓和再热状态点,进而计算系统不同阶段的热量变化和系统热效率,为燃气热水锅炉烟气余热利用及消白雾技术的研究和应用提供了参考。

In recent years,with the gradual improvement of energy saving and environmental protection requirements,flue gas waste heat utilization and white fog elimination technology have been widely used in gas-fired hot water boilers.In this paper,the technical principle of utilization of Waste Heat from Flue Gaswaste and the elimination of white fog is briefly explained.Based on the analysis of flue gas composition and the calculation formula of air enthalpy-humidity diagram,the of condensation water content,moisture content,specific enthalpy of flue gas and reheat state points of flue gas are fitted and calculated,and then the heat change and system thermal efficiency at different stages of the system are calculated.It provides a reference for the research and application of gas hot water boiler flue gas waste heat utilization and white fog elimination technology.