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    • 27. 发明授权
    • Process and apparatus for gassing liquids
    • 用于放液的工艺和设备
    • US4870018A
    • 1989-09-26
    • US855624
    • 1986-03-17
    • Jurgen Lehmann
    • Jurgen Lehmann
    • B01F3/04C12M1/04C12M1/06C12M3/00C12M3/02C12M3/06C12N5/00C12N5/07C12N5/071
    • C12M29/04B01F3/04531
    • In a process and an apparatus for the bubble-free gassing of liquids, especially of culture media for propagating tissue cultures, in which process and apparatus a gas exchange occurs across an immersed membrane sheet, to achieve simple, effective and as uniform as possible a distribution of the gas introduction and gas desorption without mechanical damage to the liquid constituents, a tubular membrane cage formed by hollow membrane filaments is suspended flexibly in the medium to be gassed and moved in a circular oscillating movement without true rotation. The gassing rate is controlled by altering the angular oscillating movement frequency and/or the radius of the circular path, or alternatively by altering the gas concentration and/or the pressure of the gas flowing into the membrane cage.
    • PCT No.PCT / EP85 / 00387 Sec。 371日期:1986年3月17日 102(e)1986年3月17日PCT PCT于1985年8月2日提交。在用于无气泡气体的方法和装置中,特别是用于传播组织培养物的培养基,其中气体交换 发生在浸没的膜片上,为了尽可能简单,有效和均匀地进行气体引入和气体解吸的分布而不会对液体成分造成机械损伤,由中空膜细丝形成的管状膜笼可以柔性地悬挂在介质中 在没有真正旋转的情况下进行循环振荡运动。 通过改变角振荡运动频率和/或圆形路径的半径,或者通过改变流入膜笼的气体的气体浓度和/或压力来控制放气速率。