Since the medium of the reciprocating pump is saturated liquid at the bottom of the tower, in order to avoid bubbles in the flow process of the fluid in the pipeline, the human outlet pipeline of the pump is reformed to reduce the number of elbows, use the same diameter filter, cancel the emergency shut-off valve, and move the return port of the reboiler 1m upward to reduce bubbles in the liquid, And an exhaust line is added at the inlet and outlet of the reciprocating pump. After the transformation, it is found that the vibration and noise can not be eliminated.

Since the medium of the reciprocating pump manufacturer is saturated liquid at the bottom of the tower, in order to avoid bubbles in the flow process of the fluid in the pipeline, the human outlet pipeline of the pump is transformed to reduce the number of elbows, use the same diameter filter, cancel the emergency shut-off valve, and move the return port of the reboiler 1m upward in order to reduce bubbles in the liquid, And an exhaust line is added at the inlet and outlet of the pump. After the transformation, it is found that the vibration and noise can not be eliminated.

According to the API standard, the reciprocating pump manufacturer finally carried out special treatment on the pump and processed a special pump body sealing ring, which reduced the area of the impeller suction port, thus reducing the impact energy caused by the separation between the medium and the pump volute during the rotation of the impeller. In this way, on the one hand, the vibration of the pump body itself can be reduced, on the other hand, the impact force generated between the outlet fluid of the reciprocating pump and the outlet pipeline can be reduced, and the possibility of resonance between the outlet pipeline and the pump can be reduced.