摘要
目的评价某型军用运输机机组氧气系统供氧防护性能,为产品设计定型提供生理试验依据。方法4具假人和4名健康志愿者配戴个体防护装备,使用某型军用运输机机组氧气系统,先后在低压舱内完成4项试验,包括氧气系统供氧性能物理试验、氧气系统迅速减压物理试验、6 h巡航高度供氧生理试验和12.0 km高空迅速减压生理试验。测试面罩内的氧气浓度、呼吸阻力、安全余压、迅速减压峰值面罩压、作用时间和稳压值等物理参数;监测志愿者心电图和血氧饱和度等生理参数。结果假人肺通气量为20 L/min时,该型军用运输机机组氧气系统在12.0 km以下提供的供氧分压≥19.1 kPa,安全余压接通前系统呼气阻力≤441.3 Pa,吸气阻力≤490.3 Pa。假人肺容积为1.0 L时,系统的迅速减压峰值≤5.8 kPa。6 h巡航飞行时,氧气系统为志愿者提供的供氧氧分压均≥21.9 kPa。4名志愿者均完成12.0 km高空迅速减压生理试验,主客观反应良好。结论该型军用运输机机组氧气系统防护性能可以满足地面至12.0 km高度供氧防护要求。
Objective To evaluate the protection performance of military transport aircraft oxygen system for aircrew and provide the physiological tests basis for product design finalization.Methods Four dummies and 4 healthy volunteers who were equipped with individual protection equipment and military transport aircraft oxygen system completed 4 tests in altitude chamber including the oxygen supply performance physical test of oxygen system,the rapid decompression physical test of oxygen system,the physiological tests of oxygen continuously supplying for 6 h and oxygen supply performance test in rapid decompression at 12.0 km.Oxygen concentration,respiratory resistance,safety pressure,peak value,peak duration and steady pressure of mask under rapid decompression were tested.Electrocardiograph and oxygen saturation of volunteers were monitored.Results The oxygen partial pressure provided by military transport aircraft oxygen system under 12.0 km was≥19.1 kPa corresponding to the respiration ventilation volume of 20 L/min of dummy.The expiratory resistance was no higher than 441.3 Pa and the inspiration resistance was no higher than 490.3 Pa before the safety pressure connected.The peak pressure value in rapid decompression with 1.0 L lung volume of dummy was no higher than 5.8 kPa.The oxygen partial pressure provided by military transport aircraft oxygen system for volunteers was over 21.9 kPa in the 6 h cruising flight.All 4 volunteers successfully completed the rapid decompression physiological tests at 12.0 km with good subjective and objective responses.Conclusions The protection performance of military transport aircraft oxygen system for aircrew can provide enough protection against the hypoxia up to 12.0 km。
作者
温冬青
王桂友
顾昭
薛利豪
于立华
涂磊
施维茹
张岩
殷东辰
刘晓鹏
Dongqing Wen;Guiyou Wang;Zhao Gu;Lihao Xue;Lihua Yu;Lei Tu;Weiru Shi;Yan Zhang;Dongchen Yin;Xiaopeng Liu(High Altitude Physiological Research,Air Force Medical Center,PLA,Beijing 100142,China;Research Department,Air Force Medical Center,PLA,Beijing 100142,China)
出处
《中华航空航天医学杂志》
2022年第2期82-87,共6页
Chinese Journal of Aerospace Medicine
关键词
氧
缺氧
减压
评价研究
呼吸防护装置
低压舱
Oxygen
Anoxia
Decompression
Evaluation studies
Respiratory protective devices
Altitude chamber
