×
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

furnace tube bluged

furnace tube bluged

furnace tube bluged

(OP)
What will be the possible cause for Furnace tube "BLUGED"?

RE: furnace tube bluged

Too high local temperatures cause the tube's metal to become plastic and internal pressure results in so-called high-temperature creep causing the tube to expand and bulge.

RE: furnace tube bluged

What is the product?

RE: furnace tube bluged

(OP)
The product are Crude oil

RE: furnace tube bluged

Assuming that the furnace involved is in the Crude or Vacuum Crude unit, See 25362 comments. Also check chemistry of tube to assure correct alloy.

RE: furnace tube bluged

Though agree fully with 25362& weldstan.

But please do check /analyze data of crude flow through the tube as if for any reasons minimum cooling media flow was not ensured at all times through operation(by mistake or intentionally; which usually results in starvation/ localized hot spots),

then adequate controls and stringent operating practices need to be in place to eradicate recurrence possibilities.

Best Regards
Qalander(Chem)

RE: furnace tube bluged

I came across a situation several years ago on a high pressure firetube boiler. The problem was that the heat exchanger that was heating up the bunker C oil developed a leak and the oil seeped into the water space of the boiler and nicely coated the furnace; amazingly, the check valves did not stop the reverse flow of the bunker C oil into the boiler. I don't remember if the furnace was corrugated or plain but being a high pressure boiler, it was probably corrugated. A new boiler was purchased instead of an expensive repair.

RE: furnace tube bluged

Sometimes the resonance on the tubes in addition the creep can cause bulge. However this type failure should start with noise in the furnace that you may/may not hear.

RE: furnace tube bluged

Flame impingment and coke build up can be one of the possible causes for a bulged tube.

regards

luis Marques

RE: furnace tube bluged

if you use an infrared camera , you can find the bulged area.

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


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close