某化工厂一台KZL_4一13型卧式外然快装锅炉,于1986年6月26日18时50分发生严重缺水事故,使锅炉本体受热面严重过热变形而报废,见附图1及2直接经济损失1.45万元。经检验:后管板烟气入口侧(高温侧)从上至下逐渐向外凸出,最大值为下部月形区(50毫米),管板变形面积为960×479毫米;最上排的六根烟管和最下排的五根烟管由管孔脱出,最长达21毫米;上月形区紧靠高温侧的两 A chemical plant a KZL_4 a 13 type horizontal external boiler installed at 18:50 on June 26, 1986 serious water shortages, the boiler body heated surface serious overheating deformation scrapped, see Figure 1 and 2 direct economic losses 14,500 yuan. After examination: after the tube plate flue gas inlet side (high temperature side) from the top down gradually protruding, the maximum value of the lower lunar region (50 mm), tube plate deformation area of ​​960 × 479 mm; the top six Smoke pipe and the bottom of the five pipe from the pipe prolapse up to 21 mm;