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本文介绍了户县热电厂4、5号炉(TII-170-1型锅炉)低温段管式空气预热器的改进,即将原单级双回路改为上、下级管箱单回路布置,并介绍了投运后的实际经济效益。
This paper introduces the improvement of the low temperature section tube air preheater of No.4 and No.4 furnaces (TII-170-1 type boiler) in Huxian Thermal Power Plant. That is, the original single-stage double circuit is changed to the single-circuit arrangement of upper and lower tube boxes, Put into operation after the actual economic benefits.