金年会

离心式压缩机运行一旦出现喘振现象，则机组和管网的运行具有以下特征：

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

（1）气体介质的出口压力和入口流量大幅度变化，有时还可能产生气体倒流现象。气体介质由压缩机排出转为流向入口，这是危险的工况。

(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）管网有周期性振动，振幅大，频率低，并伴有周期性的“吼叫”声。

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

（3）压缩机机体振动强烈，机壳，轴承均有强烈的振动，并发出强烈的周期性的气流声，由于振动强烈，轴承润圌滑条件会遭到破坏，轴瓦会烧坏，甚至轴被扭断，转子与定子会产生摩擦，碰撞，密封元件将遭到严重破坏。

(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.