聚丙烯装置丙烯进料泵选型应用

Selection and Application of Propylene Charge Pump in Polypropylene Plant

在聚丙烯装置的产能规模近十几年不断扩大的背景下,装置中关键设备丙烯进料泵的选型开始不局限于工艺包专利商推荐的立式高速泵。在某些工况下立式筒袋泵同样适用甚至更优于立式高速泵。本文选取了国内几套聚丙烯装置丙烯进料泵的操作工况,对两种泵型的性能曲线、结构、效率和汽蚀余量等方面进行比较。

Under the circumstances that the capacity of polypropylene plant has been expanding in the past decade, the application of propylene charge pump has not limited to vertical high speed pump which recommended by process licensor. In some operation conditions, vertical suspend pump （barrel type） is also applicable, even better than vertical high speed pump. This paper expounded the comparisons of pump performance curves, structures, efficiencies and net positive suction head within several operating conditions of propylene charge pump in polypropylene plant.