Analysis and reform for carbonate pump with vibration and noise

The carbonate pump is the key equipment in galoy plant of Maoming ethylene company. There existed vibration and noise on outlet pipeline and inlet pipeline from August 1996 when this pump started to operate. The extent of vibration was about 18 m at inlet and 8 m at outlet. The maximum vibration value can reach 25 [similar to] 35 mm. The maximum noise can reach 116 decibels. The shaft of some equipment had been affected badly by vibration and noise. The cause of this phenomenon was analyzed through investigating the design and practical operation of this pump. And the founded cause of vibration and noise was from pump gas failure. A solution of setting up a extra pump at inlet to increase the draw pressure and pump gas amount has been adopted. After the pressure pump was installed the vibration phenomenon was eliminated basically. The noise was reduced to permissible extent. The running period of this pump has reached one year.