Analysis of Common Problems in Design of High-Pressure Steam Pipeline of Air Separation Unit and Improvement Measures
QI Feng;WANG Yongfeng;Beijing Petrochemical Engineering Co., Ltd.,Xi′an Branch;
The high-pressure steam pipeline in the air separation unit has the characteristics of high temperature and pressure, fast flow rate and large danger coefficient, which is closely related to the safe operation of the unit. Taking 35 000 m~3/h(standard state) air separation unit as an example, the common problems of high-pressure steam pipeline in material selection, layout, drainage, purge, etc. are analyzed, and corresponding improvement measures are proposed.