PBT生产中真空系统的操作与控制

Operation and control of vacuum system in PBT production

PBT聚酯生产过程中各反应釜的反应条件中压力(真空度)是重要的控制指标之一,做为压力调节控制的真空系统运行状况应时刻受到关注,真空系统关注的重点是保证真空系统抽气能力和防止真空系统堵塞,通过对真空系统各组成部分的日常控制和问题分析进行讨论,确保真空系统的稳定和缩聚反应的稳定可控。

The pressure(vacuum degree)is one of the important control indexes in the reaction conditions of each reactor in the production process of PBT polyester.The operation status of the vacuum system as the pressure regulation control should be paid attention to at all times.The focus of the vacuum system is to ensure the pumping capacity of the vacuum system and prevent the vacuum system from blocking.In this paper,through the daily control and problems of the various components of the vacuum system The stability of vacuum system and the stability of polycondensation reaction are ensured.