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Air vent on steam exchangers: How?

  1. Aug 14, 2013 #1

    rollingstein

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    Often on high points of steam heated Shell&Tube heat exchangers etc. I've seen a vent specified to allow air and other non condensables to vent.

    e.g. this sketch http://www.spiraxsarco.com/images/resources/steam-engineering-tutorials/14/6/fig_14_6_1.gif

    What's this device (I mean the one labelled "Air vent") in practice? It doesn't seem like a regular steam trap. Or is it? Or just a weep hole? But that'd constantly bleed steam.

    In general, how is venting of steam enclosures achieved.
     
    Last edited: Aug 14, 2013
  2. jcsd
  3. Aug 21, 2013 #2

    Baluncore

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  4. Aug 25, 2013 #3

    rollingstein

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