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1 装置简介第二化肥厂30万t/a合成氨装置于1976年投产,至今已运行20多年了,其锅炉给水系统的主要管道和设备均未进行过更换。锅炉给水系统流程为:精制水泵(W-GA-404)送来精制水经变换气锅炉给水换热器(106-C)和贫液锅炉给水换热器(107-C)加热到100℃,然后进入除氧器(101-U)上部,同时在除氧器上部通人0.35
1 Plant Profile The second 300,000 t / a ammonia plant was put into operation in 1976 and has been in operation for more than 20 years. The main pipelines and equipment of the boiler feed water system have not been replaced. Boiler feed water system flow is: refined water pump (W-GA-404) sent to the refined water through the shift gas boiler feed water heat exchanger (106-C) and lean boiler feed water heat exchanger (107-C) heated to 100 ℃, Then enter the upper part of deaerator (101-U), while the upper part of deaerator 0.35