More than 2 nos. Of saddle support for vessel
More than 2 nos. Of saddle support for vessel
(OP)
Can anyone suggest me for saddle support design of vessel?
Vessel diameter is 4500mm and T.L to T.L length is 27400mm. Client requires 6nos. Of saddle supports.
Vessel diameter is 4500mm and T.L to T.L length is 27400mm. Client requires 6nos. Of saddle supports.





RE: More than 2 nos. Of saddle support for vessel
You get (now a few years old) things like this
http://www.eng-tips.com/viewthread.cfm?qid=53419
FEA and structural design of your quite large vessel would seem appropriate and also knowledge of the foundations.
To get any feedback people need a lot more than one and a half lines.
Things like
Your role and experience
Design parameters
what EXACTLY is your issue / question / uncertainty
some drawings / diagrams / analysis already completed
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: More than 2 nos. Of saddle support for vessel
RE: More than 2 nos. Of saddle support for vessel
Some years back I was involved in a project to install 4 of these and they only required two (2) Saddles each.
Sometimes its possible to do all the right things and still get bad results
RE: More than 2 nos. Of saddle support for vessel
It is not enough to "assume" the tank centerline is supported by six "equal and constant" forces at each saddle, but the "bottom" of each saddle must be supported somehow on the dirt and rock and gravel of the site to keep all six saddle foundations from moving with respect to each other. Else, the middle of 6 supports moves up, or one end moves down, or both emd move down but the middle remains fixed, and the tank is bent is half as it tries to cantilever the end, lifting not only the tank steel, but every "low" saddle and that saddle's foundation.
Stick with two supports. ribs on the tank (external) can help, but are not often used. Usually, it's cheaper to increase tank walls slightly.
RE: More than 2 nos. Of saddle support for vessel
Highly successful designs for a horizontal bullet tank of approximately your dimensions have been done for decades.
Ask the client how he came up with his number of saddles .... Ask him to show you other six-saddled vessels in the field.....
Did the number six come to him in a dream ????
MJCronin
Sr. Process Engineer