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一、事故经过1994年12月21日,维修工将新买的二级冷却盘管更换到3Z3－1．67/150型氧压机上,试车正常,操作工开始充氧灌瓶,约 4 小时后停车。1994年12月22日凌晨1:25操作工重新启动氧压机,发现一、二、三级排气压力均升不起,停车后检查,发现三级活塞环完全损坏,气缸被拉毛。在22日白天召开的事故分析会上,根据气缸内部、活塞杆均未发现积炭、甚至无熏黑的种种痕迹,判断是长时
First, the accident After December 21, 1994, maintenance workers will be replaced to buy a new two-stage cooling coil 3Z3-1.67 / 150 oxygen press, the test run normally, the operator began filling oxygen bottles, about 4 Parking after hours. At 1:25 am on December 22, 1994, the operator restarted the oxygen compressor and found that one, two and three levels of exhaust gas pressure could not rise. After stopping for inspection, it was found that the three-stage piston ring was completely damaged and the cylinder was pulled. In the accident analysis meeting held on the 22nd daytime, according to the cylinder, the piston rod found no coke, and even no traces of blackened, judging is long