| 摘要 |
PCT No. PCT/FR98/01163 Sec. 371 Date Mar. 3, 1999 Sec. 102(e) Date Mar. 3, 1999 PCT Filed Jun. 8, 1998 PCT Pub. No. WO99/01705 PCT Pub. Date Jan. 14, 1999Process for controlling the rate of gas extraction of a gas extractor for an enclosure of a cryogenic apparatus comprising a cryogenic fluid feed and an internal atmosphere, the apparatus being in contact with an ambient medium, comprising the steps of: measuring the content (m02) of the internal atmosphere of the enclosure in terms of a gas of the ambient medium; defining a target content (u02) for the measured content; calculating the rate of gas extraction (rc) of the extractor as a function of the measured content (m02) so as to maintain this content substantially equal to the target content (u02); and operating the extractor on the basis of the calculated rate of gas extraction (rc).
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