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    • 7. 发明申请
    • OXYGEN GAS PRODUCTION UNIT
    • 氧气生产装置
    • WO1987001185A1
    • 1987-02-26
    • PCT/JP1986000410
    • 1986-08-08
    • DAIDOUSANSO CO., LTD.YOSHINO, Akira
    • DAIDOUSANSO CO., LTD.
    • F25J03/04
    • F25J3/0483F25J3/0409F25J3/04254F25J3/04309F25J3/04412F25J3/04824F25J3/04866F25J2210/50F25J2235/50F25J2250/50F25J2250/52F25J2290/62Y10S62/913
    • A unit for producing an oxygen gas of a superhigh purity by deep freezing of the air, and an object of the present invention is to obtain a unit which is capable of dealing with sudden variations in the demand for an oxygen gas, by using both an expansion turbine and a liquid oxygen storage means as the refrigerating source. In this unit, a liquid oxygen storage means (23) is connected to an upper portion (14) of a rectifier, provided with a condenser (17) therein, via an introduction passage (23a) so as to cool said condenser with a liquid oxygen, and a lower portion (15) of the rectifier and an expansion turbine (31) for cooling a heat exchanger (7) are connected by an introduction passage (29). The raw compressed air is cooled to a super-low temperature in the heat exchanger, and then fed to the lower portion of the rectifier, in which the resultant air is further cooled with the latent heat of vaporization of a refluxing liquid nitrogen obtained in the condenser, to obtain liquid air having a higher oxygen content. This liquid air is introduced into the upper portion of the rectifier to separate a liquid containing oxygen alone from the liquid air, by utilizing a boiling point difference, and the remainder is discharged to the outside as waste nitrogen. The liquid oxygen is taken out through a conduit (32), and then gasified and taken out as a product oxygen gas through a conduit (35).
    • 高纯度气体制氧装置,在非常低的空气温度下冷却。 本发明的一个目的是提供一种单元,该单元能够使用膨胀涡轮机和液氧储存部件作为一个单元来对氧气需求的突然变化做出反应。 制冷源。 在所述单元中,液态氧储存元件(23)经由引入通道(23a)连接到整流器的上部(14),冷凝器(17)位于所述整流器的上部 允许所述冷凝器用液氧冷却,并且精馏器的下部(15)和用于冷却热交换器(7)的膨胀涡轮(31)通过插入通道(29)连接。 )。 被压缩的原始空气在热交换器中被冷却到极低的温度,然后被送到整流器的底部,在那里随着氮气的潜热以液态被潜热冷却。 在冷凝器中回流,以获得具有较高氧含量的液体空气。 这种液体空气被引入整流器的上部,利用沸点之间的差异从液态空气中分离出仅含有氧的液体,残余物以 废氮。 液氧通过管线(32)排出,然后通过管线(35)以气态形式气化和提取。