Ikels K G, Theis C F
Aviat Space Environ Med. 1985 Jan;56(1):33-6.
Molecular sieve oxygen generating systems are receiving extensive laboratory and flight evaluation. Assessment of the molecular system has generally been conducted in the laboratory using clean dry air. In aircraft, however, the molecular sieve generator is supplied with engine bleed air which may not always be totally free of contaminants and water. Recent studies using bed washout technics have shown that the molecular sieve units, with 50% of the beds deactivated with water, still function normally with respect to product gas flow and O2 concentration. By utilizing the technics described in this paper, the moisture content or state of hydration of the molecular sieve can readily be determined.
分子筛制氧系统正在接受广泛的实验室和飞行评估。对该分子系统的评估通常在实验室中使用清洁干燥空气进行。然而，在飞机上，分子筛发生器使用的是发动机引气，而这种引气可能并不总是完全没有污染物和水分。最近使用床层冲洗技术的研究表明，即使50%的床层因水而失活，分子筛装置在产品气流和氧气浓度方面仍能正常运行。通过采用本文所述的技术，可以很容易地确定分子筛的水分含量或水合状态。
