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换热器的露点腐蚀目前还没有引起足够的重视。本文通过实例,对换热器的露点腐蚀及烟气露点温度进行了分析,并推荐在燃料中含硫1%左右的烟气下工作的换热器,其最低壁温应大于150℃。
The dew point corrosion of the heat exchanger has not yet attracted enough attention. In this paper, an example is given to analyze the dew point corrosion of the heat exchanger and the dew point temperature of the flue gas, and the heat exchanger working under the flue gas containing about 1% of sulfur in the fuel is recommended, and the minimum wall temperature of the heat exchanger should be greater than 150 ° C.