×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Flash Tank Question.

Flash Tank Question.

Flash Tank Question.

(OP)
Hi,

I have a flash tank that requires daily draining through a drain line.  The piping is as follow: one 70 psig condensate inlet line, one venting line to a safety valve, one outlet line to a FT trap set and an manual draining line at the bottom.  Do I need to drain the tank regularly?  Or will the FT outlet drain will do the same job?  Will the tank overflow?

Thanks in advance.

MM

RE: Flash Tank Question.

The tank should drain through the trap.  The height of the trap vs. the overflow and the capacity of the trap and amount of condensate will dictate if the tank will overflow.  It is normal for most flash tanks to establish a level of water in the tank.
It concerns me that you have the vent to a SRV.  Are you using the low pressure steam?  Where does the flash go?

RE: Flash Tank Question.

For variable and widely changing throughputs a liquid-level control valve (LLCV)is generally used to maintain a more-or-less constant level in the flash drum.

RE: Flash Tank Question.

(OP)
To Joesteam,

No, the flash steam venting to the outside.  A safety valve is at the venting line.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources