| 摘要 |
PURPOSE:To reduce the effect of the depth of liquid by installing a liquid medium drainage to the upper part of a condensation vaporizer and a down flow heat transfer region, which heats a liquid medium near a boiling point and a rising flow heat transfer region which heats the liquid medium over the boiling point, to a first liquid chamber. CONSTITUTION:Liquefied oxygen LO distilled at an upper part tower 6 is intro duced into a liquid medium drainage 24 by way of an intake pipe 30, and flows down through a downflow heat transfer region 26 in an oxygen chamber 22. In the mean time, the liquefied oxygen is heated by nitrogen gas GN or liquefied nitrogen LN in a nitrogen chamber 31, and introduced into a rising flow heat transfer region 27 by way of a communication passage 28, where It is heated by the nitrogen gas GN in the rising flow heat transfer region 27, It is partially vaporized and turned into oxygen gas GO and rises as a gas liquid mixed flow. The mixed gas liquid flow is separated at the liquid medium drainage 24, and the oxygen gas GO is partially output as a product, the rest of which turns into a rising gas in the upper part tower 6. The liquefied oxygen LO is partially output as a product, a greater portion of which flows the downflow heat transfer region 26 again and circulates through the oxygen chamber 22. |
