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1994年冬季,我区发生一起DZL2.8—0.7/95/70型热水锅炉水管变形、破裂事故。该炉系自然、强制循环并联的水管锅炉结构。1993年11月安装,12月投运,实际运行压力为0.27～0.32MPa,采用炉外化学处理水的方法,(Na~+交换器)。运行不足两个采暖期。 1995年2月3日晚,司炉工在锅炉停炉后,发觉炉膛内有不正常的声响,打开拨火门后发现有汽水混合物喷出,即紧急停炉。
In the winter of 1994, a DZL2.8-0.7 / 95/70 hot water boiler pipe deformation and rupture occurred in our district. The natural, forced circulation of the boiler tube structure in parallel. It was installed in November 1993 and put into operation in December. The actual operating pressure is 0.27 ~ 0.32MPa. The chemical treatment of water outside the furnace is adopted (Na ~ + exchanger). Run less than two heating period. On the night of February 3, 1995, the fireman discovered an abnormal sound in the hearth after the boiler shutdown. After the fire door was opened, a mixture of soda and water was ejected, that is, an emergency shutdown was made.