用故障诊断技术解决主风机的振动问题一台高速大型设备的转子在出厂时均应进行严格的动平衡，使剩余不平衡量达到设计要求，因而新转子一般不会因不平衡引起过大振动，但实际中也有例外。我厂催化裂解车间３号主风机，型号：ＥＩ４２０—３．５／０．９７～ｌ，功率：１６... Fault diagnosis technology to solve the main fan vibration problem A high-speed large-scale equipment, the rotor of the factory should be rigorously balanced so that the remaining unbalance to meet the design requirements, so the new rotor will not generally cause excessive vibration due to imbalance, However, there are exceptions in practice. I plant catalytic cracking plant No. 3 main fan, model: EI420-3.5 / 0.97 ~ l, power: 16 ...