Double tube sheet..?
Double tube sheet..?
(OP)
Hello,
Who can get me a drawing wich explains the working of a "double tube sheet" (for ex.: integrated in Heat Exchangers build for petro chemical installations).
Kind regards,
JP
Who can get me a drawing wich explains the working of a "double tube sheet" (for ex.: integrated in Heat Exchangers build for petro chemical installations).
Kind regards,
JP





RE: Double tube sheet..?
A double tube sheet design is commonly used only where there is:
1) Extreme danger of tubeside leakage into the shellside
2) Very expensive tubeside fluid, and therefore potential loss of revenue
3) a miliary applicaton (seawater HX on a submarine, for example)
The double tubesheet design frequently includes some type of alarm-type leak detection system between the tube sheets.
Double tube sheets will virtually double the heat exchanger cost..... there must be a good reason for their need.
A text by a Mr. Gupta discusses these.....(its in my garage)
MJC
RE: Double tube sheet..?
Thanks for your reply...
The fluids we´re talking about are Natrium (Sodium) / Isoprene on one side, cooling water on the other.
So we don´t want any cooling water near Sodium...! (the tubes ar also Bi-metallic).
What i need to know is: When they use a double tube sheet , are there around the tubes secondary tubes.
If Yes: * Only between the "double" tube sheets.
* Or, over the full length of the Heat Exchanger.
Mvg.
Jeroen
RE: Double tube sheet..?
J. P. Gupta
Fundamnetals of heat exchanger and pressure vessel technology
Hemisphere Publishing Corporation
ISBN 0-89116-344-1
RE: Double tube sheet..?
There are also links to manuf.
Best Regards
Morten
RE: Double tube sheet..?
Try these links for more double tube sheet details and information..
www.elliscorp.com/ludell/shell/shelspec.htm
www.wlv.com/products/databook/ch1_4.pdf
(The wolverine primer is excellent for the beginner)
Double tube sheets have undergone a revival because of the new "ultrapure" requirements of the electronics chip manufacturing industry. They show up in ultrapure steam generators and condensers.
MJC