尿素合成塔衬里更换改造

DISCUSSION ON LINING REPLACEMENT TECHNOLOGY OF UREA REACTOR

介绍尿素合成塔不锈钢衬里腐蚀减薄严重情况,简要阐述腐蚀的原因,采取一次性全部更换的方法进行改造,详细介绍衬里更换实施过程,改造后运行情况良好。

Serious corrosion happened on stainless steel lining of urea reactor, making the thickness of lining become thinner. The reason of corrosion was briefly described. The reformation of one-time replacement of urea reactor lining was taken. This paper introduced the replacement process in detail and the result after reformation.