Vibration Treatment of the Main Steam Pipeline of 330 MW Unit

Through vibration measurement and analysis, the vibration behavior of main steam pipeline of a 330 MW unit of a power station was grasped. On this basis, combination with the practical situation of the pipeline, several limit devices were installed to strenghthen the control system constraints and to increase the stiffness of the vibration control options. After carrying out above mentioned remedial measures, vibration of the pipeline were obviously lowered, and it had remarkable effectiveness.