Abstract: Abstract:Taking the Huadian Industry Park Energy Station project as example, the flue gas condensing technology for removing water mist in chimney was discussed. The type selection and arrangement form of the flue gas condensing heat exchanger were analyzed. The economic analysis result shows that the equipment investment can be returned in 6.37 years. Under the condition of stable waste heat users, by using this technology, the problems of deep utilization of flue gas waste heat and chimney visual pollution can be solved.

Key words: Keywords:gasfired distributed energy system, recovery of waste heat, water mist in chimney, flue gas condensing heat exchanger