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1989年9月11日晚9时40分,衡阳市毛巾厂发生一次罕见的低级压力容器煮纱锅爆炸事故,损失惨重,教训深刻。一、设备情况及事故损失该厂的煮纱锅是七十年代初由衡阳石油厂调拨,容器内径1890毫米,高2130毫米(不包括上锅盖高度),整体容积约6.5米~3,工作压力0.06M Pa(即0.6kgf/cm~2),壁厚16毫米,上盖与锅体连接采用法兰结构,用12个φ28的螺丝紧固。燕汽进容器前的蒸汽管道上无减压装置。原设备上设有安全阀及压力表,后安全阀被拆除改为放空阀。9月11日,操作人员上班加好NaoH、Na_3Po_4颜料配制的药液及900公
At 9:40 p.m. on September 11, 1989, a rare low pressure vessel boiling yarn bomb exploded in the towel factory in Hengyang City, causing heavy losses and profound lessons. First, the equipment and accident losses The plant’s yarn making pot is Hengyang Petroleum Plant in the early seventies, the container diameter 1890 mm, height 2130 mm (excluding the lid height), the overall volume of about 6.5 m ~ 3, the work Pressure 0.06M Pa (0.6kgf / cm ~ 2), wall thickness of 16 mm, the lid and the pot connection flange structure, with 12 φ28 screws fastening. Yan steam into the steam pipe before the container without decompression device. The original equipment is equipped with safety valves and pressure gauges, after the safety valve was removed to vent valve. September 11, the operator to work better plus NaoH, Na_3Po_4 pigment preparation of the liquid and 900