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一、前言重油燃烧器波纹状尾烟气管大多数选用不锈钢或含铬镍的耐热合金,它们在含氯离子、硫、氧及水蒸汽等有害介质的使用环境中,往往会发生腐蚀破坏现象。仅以上海某厂所发生的腐蚀事故为例,其重油燃烧器尾气管原预计使用寿命为一年,现仅运行30天就发生爆管现象。为了探明失效原因,受该厂委托,我们进行了系统的分析、试验,取得了满意的结果。考虑到
First, the introduction of heavy oil burner corrugated tail flue pipe most of the selection of stainless steel or chromium-nickel heat-resistant alloys, which contain chloride ions, sulfur, oxygen and water vapor and other harmful media environment, often corrosion damage occurs phenomenon. For example, a corrosion accident occurred at a factory in Shanghai, for example, the estimated service life of the heavy-oil burner exhaust pipe is one year, and the squibing phenomenon occurs only for 30 days. In order to find out the cause of failure, commissioned by the plant, we conducted a systematic analysis, testing, and achieved satisfactory results. considering