合成氨厂冷冻系统节能改造小结

针对汽轮机实际运行负荷较低，防喘振阀开度大，系统消耗较高等问题，经过总结和借鉴相。关经验，将A系统和B系统的气氨管线联通，使得大部分气氨由离心式氨压缩机压缩，以提高离心式氨压缩机的负荷，降低螺杆压缩机的负荷（停开3～4台螺杆压缩机），改造效益相当显著。

Revamping of Refrigeration System for Energy-Saving in Ammonia Plant

Based on actual running load of steam turbine was low, the opening degree of anti surge valve was big and consumption was high, by drawing on the relative experience, the technical revamping was as follows：ammonia gas pipelines for A system and B system were connected to make most of the ammonia gas compressed by centrifugal ammonia compressor, raising load for ammonia centrifugal compressor and reducing that for screw compressor（stop 3-4 screw compressors）, which brought notable effect.