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我厂1号3200标米~3/吋制氧机连续运行340天后,冷凝蒸发器工况明显恶化,冷凝蒸发器换热温差由1.8℃逐渐增加到6℃之多,液氧蒸发量减少,氮液化量锐减,造成下塔和上塔液氮回流不足,破坏了塔内的热量平衡。氧气和氮气产量、纯度均大幅度下降,氧产量2300标米~3/时、纯度74～92%之
After the continuous operation of 3200m3 ~ 3 / inch oxygen generator of No. 1 plant on the 1st for 340 days, the condition of the condensing evaporator was obviously deteriorated. The temperature difference of the condensing evaporator increased gradually from 1.8 ℃ to 6 ℃, the evaporation of the liquid oxygen decreased, The amount of nitrogen liquefaction dropped sharply, resulting in insufficient reflux of the liquid nitrogen under the tower and the tower, destroying the heat balance in the tower. Oxygen and nitrogen production, purity have dropped significantly, the oxygen production of 2300 standard meters ~ 3 /, the purity of 74 to 92%