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1992年3月4日清晨,郑州某工厂一外径φ1200mm、容积4.94m~3的贮氨器在只使用了短短三十六天就发生爆炸,这在同类事故中还是罕见的。 1 事故情况该厂于1989年4月开始使用辽宁某厂生产的第一台贮氨器,1990年11月因扩建停用,1991年11月又启用,当年12月3日发现封头与筒体组焊缝热影响区开裂达130mm,经有证焊工做补焊处理后于当月6日又投入使用。1992年1月补焊后的焊缝再次开裂15mm,经补焊后再次投入使用,1月25日对应焊缝又一次开裂30mm长,紧急停车报废处理。第二台贮氨器于1992年1月27日安装,经用户试压合格后投入使用。使用前该设备没有按《压力容器
On the morning of March 4, 1992, an ammonia storage vessel with an outer diameter of φ1200mm and a capacity of 4.94m ~ 3 at a certain factory in Zhengzhou exploded in just 36 days and was rare in similar accidents. 1 accident situation The plant in April 1989 began using a factory in Liaoning, the first ammonia storage device, in 1990 November due to expansion of the disabled, opened in November 1991, then December 3 found that head and tube Body heat-affected zone group weld cracking up to 130mm, after the completion of a certified welder repair welding on the 6th of the month put into use again. In January 1992 after welding weld crack again 15mm, after welding again put into use, on January 25 corresponds to the weld once again cracking 30mm long, emergency stop scrapped. The second ammonia storage device was installed on January 27, 1992 and put into use after the user passed the pressure test. The device did not press “Pressure Vessels” before use