Double tubesheet heatexchangers
Double tubesheet heatexchangers
(OP)
Calculation of tubesheets.
I´m designing floating head heatexchangers with double tubesheets, TEMA Fig. RCB-7.126.
The inner tubesheets are as follows.
Fixed side: Tubesheet gasketed with shell, extended as flange.
Floating side: Outside packed tubesheet.
The outer tubesheets are as follows.
Fixed side:Tubesheet gasketed with channel, extended as flange.
Floating side:Tubesheet gasketed to channel, loose flange/split ring.
Is it correct to follow TEMA RCB-7.1261 when applying pressure loads to the ASME UHX-14?
I.e. shellside pressure only when calculating inner tubesheets, and tubeside pressure only when calculating the outer tubesheets.
I´m designing floating head heatexchangers with double tubesheets, TEMA Fig. RCB-7.126.
The inner tubesheets are as follows.
Fixed side: Tubesheet gasketed with shell, extended as flange.
Floating side: Outside packed tubesheet.
The outer tubesheets are as follows.
Fixed side:Tubesheet gasketed with channel, extended as flange.
Floating side:Tubesheet gasketed to channel, loose flange/split ring.
Is it correct to follow TEMA RCB-7.1261 when applying pressure loads to the ASME UHX-14?
I.e. shellside pressure only when calculating inner tubesheets, and tubeside pressure only when calculating the outer tubesheets.





RE: Double tubesheet heatexchangers
Are you using a later edition? Are the tubesheets what are called "Separate Double Tubesheets", RCB-7.156 in my 8th?
Regards,
Mike
RE: Double tubesheet heatexchangers
I have the 9th edition, yes it is the separate double tubesheets.
Regards
Lennart
RE: Double tubesheet heatexchangers
Regards,
Mike