The vibration monitoring system for the expander of oxygen generating plant in Shougang Jingtang Steel is introduced. Defects in the original vibration monitor system were analyzed in light of the hardware configuration and a reformation program was put forward aiming at these defects. Advantages of the transformed vibration monitor system were summa-rized.%介绍了首钢京唐公司制氧站膨胀机振动监测系统。结合硬件构成分析了原有振动监测系统缺陷，针对缺陷提出振动监测系统改造方案，对改造后的振动监测系统的优势进行了总结。
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