1 前言乌鲁木齐民航局机场南区锅炉房1996年新装两台SHL7—1.0/95/70—AⅢ热水锅炉,运行不到一个采暖期,于1997年3月5日发现炉膛内管子泄漏,随即停炉。经检验,前墙水冷壁管上部均结有一层白色硬脆的灰垢,灰垢层背火面管壁上呈现小面积斑点状腐蚀坑,深0.5～1.5mm,个别部位已腐蚀穿孔。 1 Foreword Urumqi Airport Civil Aviation Southern boiler room newly installed in 1996 two SHL7-1.0 / 95/70-A Ⅲ hot water boiler, running less than a heating period, on March 5, 1997 found that the furnace tube leakage, then stop furnace. After examination, the upper wall of the front wall of the water wall tubes are knotted with a layer of white hard and brittle ash, gray scale layer of fire on the surface of the pipe wall presents a small area of ​​spot-like corrosion pit, depth 0.5 ~ 1.5mm, individual parts have been corroded perforated.