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1 事故经过 1994年8月6日17时40分许,浙江平阳化工厂硫酸余热锅炉的强制循环下降管突然发生爆管,使22.4m长的φ159×6下降管炸成7段,其中6段管子及3块碎片腾空飞出,以下降管下部为起点按顺序排列,第1段为下降管平端盖,溅落在余热锅炉三层后平台上;第2段长3980mm下降管和第3段长4200mm下降管分别溅落在60～70m远的磷肥车间;第4段长2840mm(不包括热推弯头长度)飞至100多m远,第5段为热推弯头的碎片,直径约250mm,溅落在余热锅
1 accident After August 17, 1994 at 17:40 Xu, Zhejiang Pingyang Chemical Plant sulfuric acid waste heat boiler forced circulation descending pipe burst pipe suddenly, so that 22.4m long φ159 × 6 descending tube exploded into 7 paragraphs, of which 6 Pipe and three pieces of debris vacated fly to the lower part of the down tube as a starting point in order, the first paragraph of the lower end of the tube cover, splashed on the platform after the waste heat boiler on the third paragraph; 4200mm descending pipe splashed separately in 60 ~ 70m far from the phosphate plant; paragraph 4 length 2840mm (excluding hot elbow length) flew to more than 100 m far, paragraph 5 for the hot elbow elbow, a diameter of about 250mm, Splash in the waste heat pot