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本文介绍了哈尔滨制氧机厂近年来研制成功的返流气膨胀循环,单级精馏,带高压液氧泵的单高氧空分设备——KZO-50型空分设备和返流气膨胀循环,双级精馏,带高压液氧泵及高纯压力氮的双高空分设备——KZON-50/120型空分设备的流程,主要技术经济指标,特点等,分析探讨了返流气膨胀循环的流程型式应用于小型空分设备节能的机理,提出了合理的选择上塔操作压力,减少液氧泵冷损失等对改善小型空分设备技术经济指标的重要性。
In this paper, Harbin Institute of oxygen plant in recent years, the successful development of the back-flow gas expansion cycle, single-stage distillation, with high-pressure liquid oxygen pump single high-oxygen air separation plant - KZO-50 air separation plant and air expansion Cycle, two-stage distillation, with high-pressure liquid oxygen pump and high pressure nitrogen double high altitude equipment - KZON-50/120 air separation plant process, the main technical and economic indicators, characteristics, analysis of the return air Expansion cycle of the flow pattern applied to small air separation plant energy saving mechanism, put forward a reasonable choice of operating pressure on the tower, reducing liquid oxygen pump cooling loss, etc. to improve the technical and economic indicators of small air separation plant the importance of.