变压吸附制氮技术在钎焊领域的应用

Application of PSA Nitrogen Generation Technology in Brazing Industry

介绍了NGN-450D+SGM-300型变压吸附制氮装置的工作原理、工艺流程及配置,与同规模液氮从操作、经济性方面进行了比较,结果显示变压吸附制氮在经济性方面具有很大优势。分析了变压吸附制氮装置氮气流量、压力与纯度之间的关系及相关操作注意事项。该设备目前已成功投入使用,运行参数达到设计要求:粗氮流量≥450 Nm^3/h,氮气纯度≥99.9%,高纯氮流量≥300 Nm^3/h,氮气纯度≥99.9995%。

The working principle,technological process and configuration of NGN-450 D+SGM-300 pressure swing adsorption nitrogen generator are introduced,and compared with liquid nitrogen of the same scale in terms of operation and economy The results showed that PSA nitrogen generation had great economic advantages.The relationship between nitrogen flow rate,pressure and purity in PSA nitrogen plant and relevant operation precautions were analyzed.The equipment had been successfully put into use,and the operation met the design requirements:crude nitrogen flow rate≥450 Nm^3/h,nitrogen purity≥99.9%,high purity nitrogen flow rate≥300 Nm^3/h,nitrogen purity≥99.9995%.