冷箱问题分析

Initial cold box problem analysis

系统介绍了合成氨装置冷箱存在的问题,对冷箱工况进行原因分析和经济分析,并对检修后运行效果进行了评估。针对冷箱的历史运行工况,建议冷箱运行中要加强管理,通过降低合成回路氢氮比,优化10单元工况等方式,可以延长冷箱解冻周期,缓解冷箱对系统的影响。稳定前系统工况,提高职工的操作技术水平,减少对后系统的冲击。

This paper introduces the problems in the cold box of the ammonia plant,analyzes the causes of cold box and the economic analysis,and evaluate the effect of the operation.In order to strengthen the management of the cold box,it is recommended to strengthen the management of the cold box operation,and to optimize the operating conditions of the 10 units by reducing the hydrogen nitrogen ratio of the synthetic loop and optimizing the operation mode.The stability of the former system conditions,improve the operation of workers,reduce the impact on the system.