air cooler header
air cooler header
(OP)
I would like to learn how to calculate an air cooler header that is made from a solid block instead of plates welded together.
The block is drilled for the plugs and tubes with intersecting holes for the gas flow to the various tubes.
I need to know that the header size will withstand the design pressure.
Can anyone point me in the right direction?
The block is drilled for the plugs and tubes with intersecting holes for the gas flow to the various tubes.
I need to know that the header size will withstand the design pressure.
Can anyone point me in the right direction?





RE: air cooler header
Good luck.
RE: air cooler header
sincerely yours,
V.Dwaraka Krishna.
dwarakakrishna@sify.com
RE: air cooler header
I have seen this done for small units:
Drill tube holes through blocks
Fly-cut "chamber" with overlapping circles so that a Tubeside chamber is formed.
The Triangular Islands that remain are calculated as stays (with an appropriate eff. factor) that connect the "Header Cover" to the "Tubesheet".
This is not often done a Section VIII, Div. 1 stamped unit because you would have to satisfy Par ?, requiring test sample for "hubbed" tubesheet, and not reccomended at all from plate.
I have seen it frequently used to provide a "Non-Code" chamber between "double Tubesheets".