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C_5油品含水不仅影响工艺过程的正常进行,而且造成过程设备与管道的腐蚀及冻凝。通过对C_5油品含水冻裂管道的原因分析,讨论了C_5油品含水与冻裂管道的控制措施。结果发现C_5油品含水是因塔底重沸器U形管束内漏所致,而管道冻裂同样是由于装置检修时定期检验的不到位。建议装置在工艺过程增加油水分离罐的同时,注重压力容器与管道的定期检验。
C_5 oil moisture affects not only the normal process, but also process equipment and piping corrosion and freezing. Through the analysis of the cause of the C_5 oil containing water cracking pipe, the control measures of the C_5 oil containing water and the pipe cracking are discussed. It was found that the C_5 oil content is due to the leakage of the U-shaped tube of the reboiler in the bottom section, and the pipe fissure is also due to the regular inspection of the device during the overhaul. Proposed device in the process of adding oil and water separation tank at the same time, pay attention to the regular inspection of pressure vessels and pipes.