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1 基本情况我市某化学纤维厂1964年建厂时安装有4台SHL20-13型锅炉,系上海某锅炉厂制造。投产以后廿多年来,这4台锅炉在同一部位的第三排“弗斯顿”管处,经常因变形泄漏、爆管而频繁的进行检修。通常每5年要彻底大修一次。特别是在1989年一号炉大修后,仅运行半年就突然发生爆管,今人不解的是、该炉大修时更换了锅炉本体的全部受压部件,而且是从原制造厂订货,又是受检的合格产品,为什么会发生爆管,确实很值得研究。
1 Basic situation A chemical fiber plant in our city was built in 1964 when four SHL20-13 boilers were installed, which was made by a boiler plant in Shanghai. Twenty years after commissioning, these four boilers are frequently overhauled due to deformation leaks and squibs in the third row at the same location. Usually every 5 years to completely overhaul. Especially after the overhaul of furnace No. 1 in 1989, the pipeline burst suddenly occurred only for half a year. What people today are not understanding is that when the furnace was overhauled, all the pressure-receiving parts of the boiler body were replaced and the original pressure was given from the original manufacturer. Is subject to the test of qualified products, why burst pipe occurs, it is indeed worth studying.