HEX end cap divider plate vibration
HEX end cap divider plate vibration
(OP)
Can anyone please suggest a detail to reduce the vibration of the divider plate in the end cap of a two pass HEX? See attached.
This plate in vibrating and cracking the welds where it is attached to the head, Also moves across the contact point at the tube sheet and stuffs the gasket.
We are thinking of installing support stay rods between the plate and the head.
There is around a 50C temperature difference between the flows.
Thanks
This plate in vibrating and cracking the welds where it is attached to the head, Also moves across the contact point at the tube sheet and stuffs the gasket.
We are thinking of installing support stay rods between the plate and the head.
There is around a 50C temperature difference between the flows.
Thanks





RE: HEX end cap divider plate vibration
Worth a try, I'd say.
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: HEX end cap divider plate vibration
Passpartition nornally to be inserted to groove on tubesheet. The deep of groove is 5mm from surface of tubesheet.
Moon.
RE: HEX end cap divider plate vibration
Regards
r6155
RE: HEX end cap divider plate vibration
R615. Do API660 and TENA have different requirements for supporting the plate?
RE: HEX end cap divider plate vibration
RE: HEX end cap divider plate vibration
RE: HEX end cap divider plate vibration
You need to read and compare API 660 and TEMA
Regards
r6155
RE: HEX end cap divider plate vibration
-Christine
RE: HEX end cap divider plate vibration
http://www.wmsym.org/archives/2014/papers/14006.pd...
-Christine
RE: HEX end cap divider plate vibration
Please, can you tell us more information?: materials, shell diameter, thickness of shell and pass partition plate, fillet weld, ......
Regards
r6155
RE: HEX end cap divider plate vibration
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: HEX end cap divider plate vibration
In this case there seems to be a combinations of things that can be better
Use a full weld and not two fillets.
Better fit of the plate into the groove on the tube sheet.
Support the plate.