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離心式壓縮機運行一旦出現(xiàn)喘振現(xiàn)象，則機組和管網(wǎng)的運行具有以下特征：

Once the centrifugal compressor runs the surge phenomenon, the operation of the unit and the pipe network has the following characteristics:

（1）氣體介質(zhì)的出口壓力和入口流量大幅度變化，有時還可能產(chǎn)生氣體倒流現(xiàn)象。氣體介質(zhì)由壓縮機排出轉(zhuǎn)為流向入口，這是危險的工況。

(1) the outlet pressure and inlet flow rate of the gas medium vary greatly, and sometimes it may produce the phenomenon of gas flow reversal. The gas medium is transferred from the compressor to the flow inlet, which is a dangerous condition.

（2）管網(wǎng)有周期性振動，振幅大，頻率低，并伴有周期性的“吼叫”聲。

(2) the pipe network has a periodic vibration, large amplitude, low frequency, and a periodic "roar" sound.

（3）壓縮機機體振動強烈，機殼，軸承均有強烈的振動，并發(fā)出強烈的周期性的氣流聲，由于振動強烈，軸承潤圌滑條件會遭到破壞，軸瓦會燒壞，甚至軸被扭斷，轉(zhuǎn)子與定子會產(chǎn)生摩擦，碰撞，密封元件將遭到嚴(yán)重破壞。

(3) the body of compressor shell, strong vibration, vibration of bearings are strong, and issued a strong periodic flow, due to the strong vibration, bearing sliding conditions will run case of the main destruction, Bush will burn, even broken shaft, the rotor and the stator will cause friction, collision, sealing elements will be seriously damaged.