我厂二氧化碳压缩机组自1991年大修以来,透平振值高达160μm左右,严重影响生产。两年来虽多次采取更换轴承和转子、改进保温质量等措施,但均未取得良好效果。 为如,用DDM在线监测系统分析产生高振值的原因,实测图如图1、图2所示。从图1的轴心轨迹看, Our factory carbon dioxide compressor unit overhaul since 1991, the turbine vibration value of up to 160μm, seriously affecting the production. Although many times in two years to replace the bearing and rotor, improve the quality of insulation and other measures, but did not achieve good results. For example, with the DDM online monitoring system analysis of the reasons for the high vibration value, the measured map shown in Figure 1, Figure 2. From the axis of the trajectory in Figure 1,