vertical guide on cold insulated line

[MalcolmA]

I am looking for some advice on guiding a vertical cold insulated line that is guided from a vessel. The existing guide has a 2" gap all around and is guided from the OD of the insulation. There is a sleeve on the insulation.

My problem is that the line has two-phase flow and vibrates excessively at the guide (2"). The guide needs to have a tight fit. I would like to reduce the gap to zero and still allow the line move vertically in the guide.

As a temporary fix, pieces of 2 X 4 wood have been wedged into the gap and it has completely solved the vibration problem.

If anyone knows of a way to permanantly solve this problem or knows of a pre-engineered guide that could be used, I would greatly appreciate it.

 

[pipingdesigner]

Try this link:

http://www.pipingtech.com/services/index.html

pipingdesigner

http://www.pipingdesigners.com

 

[ApC2Kp]

MalcomA,

You might consider the FRP composite pipe shoe from

http://www.advancedpipingroducts.com

These are strapped on to the pipe, and an opposed pair on either side of the vertical pipe could serve to guide the pipe and restrain against vibration. The FRP shoe could also be sealed to the insulation jacket easier. The structural steel will need to be adjusted to fit the height of the FRP pipe shoes.
These were used on a project with electric heat tracing of the pipe for freeze protection reasons. A carbon steel shoe was too much of a heat sink / cooling fin, so the FRP shoe saved the extra heat tracing required for CS shoes.

 

[ApC2Kp]

MalcolmA,

Spell check didn't catch mistake in webpage name, try again

http://www.advancedpipingproducts.com