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1前言华源热力公司集中供热站在2000年安装了2台29NW高温热水锅炉,并于当年投入运行。2台锅炉在运行中经常出现空气预热器堵塞现象,有时还会出现一侧完全堵塞,造成锅炉送风一侧热,一侧冷,严重影响锅炉的燃烧工况和锅炉出力,每一个采暖期需多次停炉检修清理。通过2年的运行,我们对空气预热器堵塞的原因进行了全面细致的分析,并于2002年夏季对2台锅炉配置的空气预热器进行了改
1 Introduction Huayuan Thermal Power Company Central Heating Station in 2000 installed two 29NW high temperature hot water boiler, and put into operation in the same year. Two boilers often appear in the operation of the air preheater blockage, and sometimes there will be a complete block on one side, resulting in the boiler side of the hot air supply, cold side, seriously affecting the boiler combustion conditions and boiler output, each heating Need to shut down many times to repair and clean up. After 2 years of operation, we conducted a thorough and detailed analysis on the causes of clogging of the air preheater and carried out the change on the air preheater of 2 boilers in the summer of 2002