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我省某企业1台××65-3.82/450-YQT型燃气锅炉,于1996年12月投入运行,运行约80×10~3h,锅炉本体部件未见异常。2006年该厂为了扩大产能,请原安装单位对锅炉的水冷壁、过热器等受热面进行了整体更换,运行至2007年4月,司炉工发现该锅炉运行异常遂紧急停炉。检查后发现有2根悬吊管已经爆管,喷出大量的汽水混合物甚至将旁边的低温过热器管吹漏。受使用单位委托,对该炉进行了全面检查和分析。
A company in our province a × × 65-3.82 / 450-YQT gas boiler, put into operation in December 1996, running about 80 × 10 ~ 3h, the boiler body parts without exception. In 2006 the plant in order to expand production capacity, please the original installation of the boiler water wall, superheater and other heating surface were the overall replacement, run until April 2007, the fireman found that the boiler operation abnormal emergency shutdown. After inspection, two hanging pipes have been exploded, a large amount of soda mixture is sprayed out, and even a low-temperature superheater tube is blown out. Commissioned by the use of units, the furnace conducted a comprehensive inspection and analysis.