介绍了高纯氮空分设备的各种流程型式及特点,针对不同产品规格选择与其相适应的流程型式,对于综合投资的意义重大,同时简要介绍了最新开发的高纯氮装置的节能流程型式,希望能促进气体分离行业的发展。 This paper introduces various process types and characteristics of high purity nitrogen air separation plant, and selects suitable process models for different product specifications, which is of great significance for comprehensive investment. At the same time, the energy saving process of the newly developed high purity nitrogen plant is briefly introduced , Hoping to promote the development of gas separation industry.