How Does a Sample Cylinder Fill?
There are many factors to consider for liquid sampling. That's why we put together a five-part Ask Swagelok video series that discusses the importance of maintaining proper vapor space compression, the role of outage tubes, how vapor space is affected by sampling system design, and what you need to know to minimize the risk of cylinder rupture.
In the second video, fluid sampling expert Matt Dixon discusses how a sample cylinder fills and what users should know about that process.
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LUCAS TREU:
您好,我是 Lucas Treu,这里是 Ask Swagelok。我在索伦技术中心与我们流体取样专家之一的 Matt Dixon 一道,讨论的是液体取样注入金属气瓶。
Matt,取样气瓶究竟是如何充装的,您希望人们了解哪些内容?
MATT DIXON:
通常情况下,当您往取样气瓶里充填样品时,您需要垂直方向充填液体,然后将供应压力连接到底部,这样气瓶就会从下往上充填。
现在,人们没有意识到的是,您通常还要面对回流压力。因此,通常情况下,至少在初始阶段,也是从上往下充填。因此,液体会从底部和顶部充入,这就压缩了里面的蒸发空间。
了解这一点非常重要,因为这真正可以帮助我们确定取样操作结束时的蒸发空间大小。
LUCAS TREU:
是的,有道理。谢谢。感谢各位参加 Ask Swagelok。