Since the material of atmospheric condenser, barometric discharge pipe, pump casing of follow-up water ring vacuum pump, impeller, and moisture tank was upgraded and anticorrosive p...

对重点腐蚀部位的大气冷凝器、大气腿、后续水环真空泵泵壳、叶轮、水封罐等升级材料、泵壳内涂防腐涂料后，已运行两年，仍然完好。

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The serious corrosion problem at low temperature could be found in atmospheric-vacuum distillation unit, especially in the atmosphere overhead condenser.

常减压装置存在较为严重的低温位腐蚀问题，尤其是常压塔顶冷凝器腐蚀问题更为严重。

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