Liquified gas pumping and cylinder re-fill system
    1.
    发明授权
    Liquified gas pumping and cylinder re-fill system 失效
    液化气抽气和气缸再填充系统

    公开(公告)号:US4351372A

    公开(公告)日:1982-09-28

    申请号:US083825

    申请日:1979-10-11

    Abstract: A pumping system for filling pressurized gas cylinders from a relatively lower pressure, liquified supply of that gas, for example CO.sub.2, by means of a system comprising a CO.sub.2 /air-driven motor driving the liquified gas into the cylinder. The system is primed until liquid begins to run. Thereafter the liquid is driven by the CO.sub.2 /air-driven motor into an empty cylinder. A particularly efficacious longitudinally reciprocating plunger pump for use in the system is disclosed (FIG. 4). The "air" driven motor is preferrably driven by CO.sub.2 vapor, particularly where CO.sub.2 is the liquified gas being pumped or where hazardous or toxic liquified gases are being pumped.

    Abstract translation: 一种泵送系统,用于通过包括CO 2 /空气驱动的马达将液化气体驱动到气缸中的系统从相对较低压力的气体(例如CO 2)的液化供应中填充加压气瓶。 系统被灌注直到液体开始运行。 此后,液体由CO 2 /空气驱动的电动机驱动到空的气缸中。 公开了一种用于该系统的特别有效的纵向往复式柱塞泵(图4)。 “空气”驱动的电动机最好由二氧化碳蒸汽驱动,特别是在泵送液化气体的地方,或者在泵送有害或有毒的液化气体的情况下。

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