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近年来国内引进的十三套大型化肥设备及某些国产大型化工流程中的压气机.有不少型号发生了强烈的机组振动,以致严重地影响了正常生产.作者通过大量的试验实践,认为这些高速压气机转子工作转速都很高,位于第二临界转速左右,转子在工作转速范围内将发生二三阶的混合振型的振动,传统的逐级低速平衡法已无效用,必须进行高速动平衡.实践证明,这种转子经高速平衡后能够在全转速范围内达到平稳地运转.
In recent years, the introduction of 13 sets of large-scale fertilizer equipment and some domestic large-scale chemical processes in the compressor. There are many models of a strong unit vibration, which seriously affected the normal production. The author through a large number of experimental practice, that These high-speed compressor rotor speed are high, located at about the second critical speed, the rotor speed range will occur in the second and third order hybrid vibration, the traditional step by step low speed balance method has been ineffective, it is necessary to carry out high-speed Dynamic balance. Practice has proved that this rotor after high-speed balance in the full speed range to achieve smooth operation.