In PET plant, because of the impact of high-speed airflow in vapor pipe, the coils of the process column vibrated seriously.The crack appeared at the outlet area of the coils.

• 摘要在PET装置中，工艺塔盘管由于受到气相管高速气流的冲击，产生较大的振动，在盘管出口处出现裂纹。