防止蒸发系统设备管线结晶堵塞的措施

The Measures to Prevent Crystal Blocking from Devices and Pipelines of Evaporation System

两段真空蒸发尿液浓缩工艺,在实际操作中,不仅要控制好正常运行时的工艺指标,还要在开停工期间以及故障或事故状态下采取有效的措施,防止结晶堵塞设备和管道。

During the practical operation, as to urea solution concentration process in two-stage vacuum evaporation, not only we should control the technic index of normal operation, but also take effective measures during start-up and shut-down period, the state of stoppage and accident in order to prevent the crystal from blocking system and device.