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["喘震은 선�引力기기의 성능을 이상하게 만드는 불안정한 작동상태입니다.喘振은 선�.Gravity기기의 성능 iht性能 iht不稳定性能)를 나타내는 불안정한 작동상태입니다。",喘振은 선�.Gravity기기의 성 yal性能)를 역행시키는 불안정한 작동상태입니다。"],"喘振은 선�.Gravity기기의 성 yal性能)를 역행시키는 불안정한 작동상태입니다。"],[""그러므로 실제 운영에서는 가능한 한 턴性能)점에서 작동하지让消费者尽量避免在喘振点性能)点点点性能)点运行,一旦运行在喘振点性能)

2017-10-08View Original

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“喘振”是使离心风机性能反常的一种不稳定的运行状态。离心风机发生喘振时,将出现整个风机管网系统的气流周期振荡现象,而且会发生一种如同喘息般的“呼嚓、呼嚓”的噪声,并**地加剧整个机组的振动。严重的会出现压力失调引起强烈的振动,从而使密封和轴承损坏等情况,后果严重。因而在实际生产中应尽量避免风机在喘振点运行,一旦在喘振点运行就要立即采取相应的措施给予解决。  离心风机一旦出现喘振现象,则机组和管网的运行状态,具有以下明显的工况:气体介质的出口压力和入口流量在大幅变化,有时还可能产生气体倒流现象。气体介质由风机排出转为回流,这是较危险的工况。管网有周期性振荡、振幅大、频率低,并伴有周期性“吼叫”声。  风机振动强烈,机壳、轴承均有强烈振动,并发出强烈的、周期性的气流声。由于振动强烈,轴承液体润滑条件会遭到破坏,轴瓦会烧坏,甚至轴扭断,转子与定子会产生磨擦、碰撞,密封元件也将严重破坏。
Reply #22017-10-08
对离心机喘振解释的很到位。
Reply #32017-10-09
根据离心式压缩机的性能曲线,实际运行工况远离喘振点,可防止喘振发生。

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