摘要
根据湿烟羽扩散和污染物沉降模型,分析了湿烟羽对周边环境的影响,并针对空气和烟气性质对湿烟羽的形成及其治理技术的影响进行了分析。结果表明:烟囱出口平均温度对湿烟羽中污染物最大沉降质量浓度的影响较大,环境温度对湿烟羽扩散的影响也较大;烟气冷凝再热技术适用范围较广,环境温度和空气相对湿度对消除湿烟羽的影响较大,烟气冷凝可降低再热后烟囱出口平均温度和耗能。
Based on the model of wet plume diffusion and pollutant sedimentation,the impact of wet plume on the environment was analyzed,while the effects of air and flue gas properties on the formation and control of wet plume were studied.Results show that the exhaust temperature has great influence on the maximum concentration of pollutants deposited from wet plume,while the air temperature affects more on the diffusion of wet plume.The technology of flue gas condensation and reheating has a wide range of applications.The ambient temperature and relative humidity have great influence on the elimination of wet plume.Flue gas condensation could help to lower the average outlet temperature after flue gas reheating and reduce the energy consumption accordingly.
作者
赵立正
孙保民
ZHAO Lizheng;SUN Baomin(Key Laboratory of Condition Monitoring and Control for Power Plant Equipment,North China Electric Power University,Beijing 102206,China)
出处
《动力工程学报》
CAS
CSCD
北大核心
2020年第6期502-508,516,共8页
Journal of Chinese Society of Power Engineering
关键词
冷凝再热
湿烟羽
污染物沉降
数值分析
condensation and reheating
wet plume
pollutant sedimentation
numerical simulation
