二氧化碳压缩机二段出口压力超高原因及对策

REASONS OF PRESSURE EXCEEDING AT THE SECOND STAGE EXIT OF CO_2 CENTRIFUGAL COMPRESSOR AND ITS COUNTERMEASURES

对尿素装置二氧化碳离心式压缩机长周期运行中出现的二段出口压力超高问题 ,进行分析讨论 ,提出解决对策。其主要原因是高压缸叶轮流道结垢 ,CO2 气中含硫、洗涤CO2 气用的水中含氨是形成叶轮结垢的直接原因。根据转子的结垢程度调整工艺操作方式 。

This paper discusses the pressure exceeding problem at the second stage exit of CO 2 centrifugal compressor in urea plant after long period of running and gives countermeasures The main reason for this problem is the scaling of high pressure cylinder impeller channel while the direct cause is the sulfur containing CO 2 gas and ammonia containing water used to wash the CO 2 gas To adjust the operation style according to the scaling degree of the rotator can effectively control and reduce further generation of the scale