PSA制氧机分子筛的应用技术  

Application technology of molecular sieve in PSA oxygen generator

作　　者：罗树蓉 陈伟 徐利民 杨港 LUO Shurong;CHEN Wei;XU Limin;YANG Gang(Hangzhou Dingyue Air Separation Equipment Co.,Ltd,Fuyang 311411,China)

机构地区：[1]杭州鼎岳空分设备有限公司,浙江富阳311411

出　　处：《医用气体工程》2024年第5期38-42,共5页Medical Gases Engineering

摘　　要：PSA制氧机是利用制氧分子筛在不同压力下对氧氮吸附率不同的原理进行气体分离的设备,在工艺设备操作中具有灵活性、智能性和节能性等特点。分子筛作为变压吸附过程的关键媒介,对制氧效率、制氧纯度以及制氧机使用寿命均有着重要影响。文章介绍了制氧机工艺流程、制氧机分子筛种类和性能特点,从分子筛损坏机制出发,讨论了分子筛失效的本质原因,并分析了影响分子筛失效的因素,同时对如何提高分子筛使用寿命进行了阐述。Pressure swing adsorption(PSA)oxygen generator is a device for gas separation based on the principle that oxygen molecular sieve has different adsorption rates of oxygen and nitrogen under different pressures.It has the characteristics of flexibility,intelligence,and energy saving in the operation of process equipment.Molecular sieve,as a key medium in the process of PSA,has a significant impact on efficiency and purity of oxygen production,and service life of oxygen generators.This paper introduces the process flow of oxygen generators,the types and performance characteristics of molecular sieve in oxygen generators,discusses the essential causes of molecular sieve failure,analyzes the factors affecting molecular sieve failure,and elaborates on how to improve the service life of molecular sieve.

关 键 词：变压吸附 制氧机 分子筛 失效机制 

分 类 号：TU85[建筑科学]