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KDN-200/30Y型空分设备,系统采用低压返流膨胀设计,低温膨胀机采用苏州西达生产的PLPK-10/3.5×0.25型气体轴承透平膨胀机。系统中配置2台套该型膨胀机组,运行中采用1用1备模式。制氮空分装置2008年7月安装到位,系统经试压、清洗、吹扫、裸冷等规范操控试运行。运行近2个月时,系统1#和2#膨胀机,相继出现突然停车、无法通过切换使其重新启动的故障,致使整套空分停运。1.故障现象整套空分装置2008年11月份开车试运行,在各项参数合格试运行近两个月后,2009年1月13日1#膨胀机突然出现很大的
KDN-200 / 30Y air separation plant, the system uses low-pressure backflow expansion design, low-temperature expander using the Suzhou West production of PLPK-10 / 3.5 × 0.25-type gas turbine bearing expander. The system is equipped with 2 sets of this type of expansion unit, the operation of a 1 by 1 standby mode. Nitrogen nitrogen plant installed in July 2008 in place, the system pressure test, cleaning, purging, naked cold and other standardized control trial operation. Running nearly 2 months, the system 1 # and 2 # expander, have a sudden stop, unable to restart by switching to the failure, causing the entire space outage. 1. Symptoms of the entire set of air separation unit test drive in November 2008, the trial run in the parameters of nearly two months after passing, January 13, 2009 1 # expander suddenly appeared great