Analysis of temperature deviation of exhaust flue gas in air preheater

Abstract

Abstract:

To address the large deviation of the exhaust gas temperature at outlets of two air preheater in a power plant, historical data of distributed control system(DCS) is retrieved and the online data is calibrated. Analysis on the deviation of gas temperature at outlets is made from flue gas side/air side flue gas temperature and air leakage rate. The reason for the deviation of the flue gas temperature on two sides is obtained, and a solution is proposed.

Key words:

air preheater, flue gas temperature deviation, flue gas, air leakage rate, erhaust gas temperature

JIN Jun，ZHONG Xihu，LI Guangwei.

Analysis of temperature deviation of exhaust flue gas in air preheater

[J]. Huadian Technology, 2019, 41(6): 53-56.

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Analysis of temperature deviation of exhaust flue gas in air preheater

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