Double Pipe Heat Exchager design Code
Double Pipe Heat Exchager design Code
(OP)
Hi,
What are the typical design codes applicable for mechanical design of double pipe heat exchangers?
Are they built to confirm to ASME Sec VIII?
Thanks,
Benoy
What are the typical design codes applicable for mechanical design of double pipe heat exchangers?
Are they built to confirm to ASME Sec VIII?
Thanks,
Benoy





RE: Double Pipe Heat Exchager design Code
RE: Double Pipe Heat Exchager design Code
There is no "code" for designing or fabricating a double pipe heat exchanger.
As Moltenmetal states, the usual practice is to treat such an assembly as piping and falling within the applicable piping codes and specifications.
RE: Double Pipe Heat Exchager design Code
So...now a guy draws the pipe-in-pipe heat exchanger on a PFD or P&ID and assigns a tag number and a duty to it. The Mechanical guy then goes and prepares a data sheet and goes for inquiry on it. A purchase order ends up being awarded to a heat exchanger manufacturing shop who happily puts a U-stamp and a nameplate on it ant registers it with the local authorities as a pressure vessel or heat exchanger with a single tube in it.
I don't know if that is funny or stupid, but it's reality.
RE: Double Pipe Heat Exchager design Code
So...now a guy draws the pipe-in-pipe heat exchanger on a PFD or P&ID, designs the exchanger (the duty is documented here), assigns a minor equipment number, creates a one page mechanical spec. with sketch (no duty), faxes it to his piping contractor (the contractor knows the piping specs), gets a quote, requests a PO, contractor builds the heat exchanger, inspects exchanger, witnesses pressure test, and the contractor installs it.
Good luck,
Latexman
Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers
RE: Double Pipe Heat Exchager design Code
RE: Double Pipe Heat Exchager design Code
Basically because it's right.
RE: Double Pipe Heat Exchager design Code
RE: Double Pipe Heat Exchager design Code
Good luck,
Latexman
Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers
RE: Double Pipe Heat Exchager design Code
RE: Double Pipe Heat Exchager design Code
RE: Double Pipe Heat Exchager design Code
Too much dependence on "contractor" without apparent oversight.
And no RFQ's?
RE: Double Pipe Heat Exchager design Code
Another benefit is that the fabricator of double pipe or tube in tube units is typically us.
RE: Double Pipe Heat Exchager design Code
Good luck,
Latexman
Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers