氨冰机联锁系统问题分析与对策

Analysis and countermeasure of existing problems in interlocking system of ammonia refrigerator

分析了合成氨分厂冷冻工段5台氨冰机仪表联锁系统存在的问题,结合已有的维护经验,选用适宜的测量元件和数采运算控制单元,优化硬件结构和控制程序,使改造后的仪表联锁系统具有更高的安全性、可靠性及可维护性。

Analysis of problems the five ammonia refrigerator instrument interlocking system for synthetic ammonia branch factory freezing section,combined with existing maintenance experience,selection of suitable measuring elements,data collection operations control unit,optimal hardware structure,control program,after the reconstruction instrument interlocking system with a high level of security,reliability,and maintainability.