聚酯装置真空系统的工艺改进The Process Innovation of Vaccum System in Polyester Unit
王伟华
WANG Wei-hua (Shanghai Lianji Chemical Fiber Co. Ltd.
摘要(Abstract)：
为增加聚酯装置真空系统的运行时间,解决生产运行过程中真空系统经常出现的问题,将吉玛聚酯装置的真空系统增加了乙二醇(EG)循环系统热清洗、真空抽料、降液管N2反吹、预聚真空管线电伴热等多项工艺技术改进,在实际应用中效果明显。
In order to prolong opeating duration of the vaccum system of polyester unit and resolve the problems occurred often in the vacuum system during production, a EG circulating system for heat cleaning, a vacuum intake, a down-flow spout for nitrogen back flushing, and prepolymerization vacuum piping for electrical tracing were added to vacuum system in Zimmer polymerization plant. The effect was obtained in practical application.
关键词(KeyWords)：
聚酯;真空系统;工艺改进;热清洗;真空抽料
polyester, vacuum system, process innovation, heat cleaning, vacuum intake
基金项目(Foundation):
作者(Author):
王伟华
WANG Wei-hua (Shanghai Lianji Chemical Fiber Co. Ltd.