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1 事故经过我市某单位新安装了一台SHL10—13/350—A型锅炉,1994年1月投入运行、工作压力限定为1.1±0.1MPa。当锅炉运行到第五天时,发现饱和蒸汽与过热器出口压降由运行后的0.05MPa增加到0.15MPa,过热蒸汽温度由开炉时的350℃下降到340℃,锅炉运行到第8天,饱和蒸汽与过热器出口压降增加到0.28MPa,过热蒸汽温度下降到325℃,但因原因分析无定论,供汽负荷又紧张,锅炉继续运行;锅
1 accident through a unit in our city to install a new SHL10-13 / 350-A-type boiler, put into operation in January 1994, the working pressure is limited to 1.1 ± 0.1MPa. When the boiler ran to the fifth day, it was found that the pressure drop of saturated steam and superheater exit increased from 0.05MPa after operation to 0.15MPa, the superheated steam temperature dropped from 350 ℃ to 340 ℃ when the boiler was turned on, and the boiler ran to the eighth day, Saturated steam and superheater outlet pressure drop increased to 0.28MPa, superheated steam temperature dropped to 325 ℃, but due to the inconclusive analysis, steam supply and tension, the boiler continues to run; pot