Method of drying pipelines and putting gas thereinto
    2.
    发明授权
    Method of drying pipelines and putting gas thereinto 失效
    干燥管道和放入气体的方法

    公开(公告)号:US4346726A

    公开(公告)日:1982-08-31

    申请号:US103226

    申请日:1979-12-12

    IPC分类号: B01D53/26 F17D1/04 F17D1/02

    摘要: The invention relates to total elimination of aqueous deposits in pipelines intended for transporting gaseous fluids, such as a natural gas. The method involves sending, by a nozzle at an end of at least one compressed air ejector, connected with the pipeline, a pressurized driving fluid (for example, under 4 to 8 bars) into a pipeline which aspirates and entrains the gaseous fluid (air+water vapor), the mixture of fluids then being discharged at the other end of the ejector. In practice, multistage ejectors for example three ejectors in series, are used. According to a variant of the method, the step of putting gas which is to be transported into the pipeline is done while the vacuum is maintained in the ejector or ejectors so as always to be outside the limits of flammability of this gas. The method is particularly suitable for drying natural gas pipelines and then putting the pipelines under pressure.

    摘要翻译: 本发明涉及用于输送诸如天然气的气态流体的管道中的含水沉积物的完全消除。 该方法包括通过在与管道相连的至少一个压缩空气喷射器的端部处的喷嘴将加压的驱动流体(例如,低于4至8巴)送入管道中,该管道吸入并夹带气态流体 +水蒸汽),然后流体的混合物在喷射器的另一端排出。 在实践中,使用多级喷射器,例如串联的三个喷射器。 根据该方法的变型,将待运输的气体输送到管道中的步骤是在喷射器或喷射器中保持真空的同时始终处于该气体的可燃性极限之外。 该方法特别适用于干燥天然气管道,然后将管道置于压力之下。