第二讲低温流体的化学危害性—着火和爆燃 发生燃烧或爆炸要有燃料、氧化剂和着火源三个条件。一般说来,氧化剂就是氧,它可以来源于液氧贮槽的泄漏或溢出、冷却到90K以下的表面上冷凝的空气和液氢中积累的固体杂质等。燃料几乎都是那些互不相容的材料或可燃的气体,在极热的情况下,相容的材料也可能成为燃料。着火源可能是 Lecture 2 Chemical Hazard of Cryogenic Fluids - Burning or Explosion of Ignition and Deflagration There are three conditions of fuel, oxidant and ignition source. In general, the oxidizer is oxygen, which can originate from leakage or spillage from liquid oxygen storage tanks, solid impurities that condense on air and liquid hydrogen that condense below 90K, and so on. Almost all fuels are incompatible materials or flammable gases, and in extreme heat, compatible materials can also become fuel. The ignition source may be