In this paper,aiming at the problem of air volume scutching and blockage of the air preheater of power station boiler,a renovation design scheme is proposed.By installing hot air plunger door and adjusting baffle,adding cold end hot air nozzle and through pipe,adding heat control equipment and electrical equipment,and incorporating distributed control system,the scheme realizes the effective solution to the problem of air volume cutting blockage of air preheater.At the same time,the use of hot air cleaning anti-blocking system can better adapt to the characteristics of the cold temperature distribution of the cold end of the rotary air preheater.Through these renovation designs,the performance and efficiency of the power station boiler air preheater are improved,the energy consumption and operation cost are reduced,and the service life of the equipment is extended.
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