便携式制氧机的工作原理及性能分析

The Working Principle and Performance Analysis of Portable Oxygen Concentrator

为检测自主研发的便携式制氧机的工作性能,本文通过高原就地试验和低压舱试验测试了便携式制氧机的氧气浓度、氧气流量和使用者的生理效应。试验结果表明:自主研究的便携式制氧机在高原环境下氧气浓度能维持在90%左右,在5 000m以下使用者的血氧饱和度超过90%,能有效解决高原缺氧问题;使用脉宽调制(PWM)技术,有效地节省了能耗,延长了便携式制氧机在户外的使用时间。

Objective：To determine the performance of the portable oxygen concentrator.Methods：The oxygen concentration,oxygen flow rate and the pHysiological effects of subjects using the portable oxygen concentrator were detected by use of participants in high altitude situ and low-pressure cabin.Results：The oxygen concentration can be maintained at about 90%,and the blood oxygen saturation of the users is more than 90% at 5 000m above sea level.Conclusions： Using the portable oxygen concentrator can effectively solve the problem of lacking oxygen at high altitude;introducing the PWM technology can save effectively energy and prolong the portable oxygen concentrator for use in outdoor time.