Design and experimental study of molecular sieve oxygen generating device at high altitude
10.7644/j.issn.1674-9960.2024.11.008
- VernacularTitle:适应高海拔环境的分子筛制氧装置设计与实验研究
- Author:
Yi LI
1
;
Xiaofeng LIU
;
Shujie CUI
;
Bo WANG
;
Ping LI
;
Yanan WU
;
Wei ZHANG
;
Yanru HAN
Author Information
1. 兵器工业卫生研究所,西安 710065
- Keywords:
operation at high altitude;
pressure swing adsorption;
three-bed molecular sieve;
low-pressure performance test
- From:
Military Medical Sciences
2024;48(11):848-852
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop a pressure swing adsorption oxygen generating device that is workable at altitudes of 0 to 7000 meters.Methods The three-bed molecular sieve oxygen production process was adopted.The switching time of air circuit solenoid valve and the rotation speed of the compression pump were taken as controllable variables.The performance of the oxygen generating device was tested in a normal atmospheric environment and a low-pressure environment corresponding to altitudes of 0 to 7000 meters.The optimal values of controllable oxygen generating parameters corresponding to 10 low-pressure environments(89.9,79.7,69.7,65.0,62.0,57.7,53.8,47.6,43.0,41.0 kPa)were obtained.Results The oxygen concentration could reach 94％,oxygen flow rate was 9 L/min and oxygen outlet pressure stood at 44 kPa in a normal atmospheric environment(altitude 416 meters),compared with 94％,6.3 L/min and 30 kPa in a low-pressure environment of 41 kPa(altitude 7000 meters).Conclusion The oxygen generating device can meet the oxygen needs of two persons within the altitude range of 0 to 7000 meters.
