分子筛氧气浓缩器多因素退化试验设计

Multi-factor degradation test design for molecular sieve oxygen concentrator

针对分子筛氧气浓缩器(MSOC)退化试验(DT)研究不足及分子筛床(MSB)退化失效影响因素不明确的情况,提出了一种基于正交试验的氧气浓缩器退化试验设计方法。在分析氧气浓缩器工作原理的基础上,确定了造成分子筛床退化失效的主要因素,并搭建了分子筛氧气浓缩器退化试验系统,通过多组对照试验确定并验证了退化试验的最佳试验高度为9 km;基于正交试验思想设计了分子筛氧气浓缩器退化试验方案,采用9组典型试验即可获得各因素的影响结果,减少了试验次数,降低了试验成本,提高了耦合试验的效率。该试验设计可以模拟受试设备的真实工作环境,并可有效降低试验因素变化对试验结果初值的影响。

For lack of research on degradation test(DT)for molecular sieve oxygen concentrator(MSOC)and clear account of the factors causing degradation failure of molecular sieve bed(MSB),a DT design method of MSOC based on orthogonal test was proposed.Based on the working principle of MSOC,the main factors causing degradation failure of MSB were determined,and a DT system of the MSOC was built.The optimal test height for the DT was 9 km,as was determined and verified by several controlled tests.A DT scheme of MSOC was designed based on the orthogonal test idea.The influence of various factors could be obtained through 9 typical tests,which reduced the test times and costs,and improved the efficiency of coupling tests.The test design can simulate the real working environment,and can effectively reduce the impact of test factors on the initial value of the test results.