general pipe rack configuration.

[DEEPBLUE76]

hi,
can anybody tell me what is the general configuration of the piperack wrt to line size and service and also which services should be on top tier and which should be on the bottom.

 

Hello,

A similar questions was asked in a previous thread. Several references are suggested.

Piping and Pipe Support Systems, by P.R. Smith and T.J. Van Laan, published by McGraw Hill.

Also, there is some good stuff on piperack design in:

"The Piping Guide" by D.R. Sherwood and D.J. Whistance - ISBN 0-914-08219-1 (Syentek, PO Box 26588, San Francisco, California 94126). I would recommend that anybody who routinely designs piping systems SHOULD OWN THIS BOOK.

Also, "Process Plant Layout and Piping Design", by Ed Bausbacher and Roger Hunt (IBSN 0 7913 0543 5 ), Auerbach Publishers, 1990, might be useful to you. I think this is being published by someone else now so search the Internet. The book is pricey so see if you can get it from a library for evaluation before you buy it.

Regards, John.

 

Hello,

An update, the book "Process Plant Layout and Piping Design", by Ed Bausbacher and Roger Hunt is now in Paperback: 464 pages ; Dimensions (in inches): 1.40 x 11.33 x 8.51, Publisher: Prentice Hall PTR/Sun Microsystems Press; ISBN: 0131386298; 1st edition (January 13, 1998)

This book is US $67.00 at Amazon.com - not as prices as it once was.

Table of Contents
1. The Basics of Plant Layout Design.
2. Plant Layout Specification.
3. Plot Plans.
4. Compressors.
5. Drums.
6. Exchangers.
7. Furnaces.
8. Pumps.
9. Reactors.
10. Towers.
11. Pipe Racks.
12. Structures.
13. Underground Piping.
14. Instrumentation.
15. Process Liquid Storage Tanks.
16. Stress Analysis.
17. Computer-Aided Design.
Index.

Regards, John.

 

[SAPIII]

Considering a 3-level Pipe Rack, Lines shall be placed in the preferred locations conforming to the following.
1. Largest and Heaviest lines to the Outside.
2. Group Steam and Condensate lines on top tier with largest and hottest at rack edge.
3.Large bore cooling water lines on bottom level ,at rack edge as most users will be at grade.
If possible route Large bore cooling water lines underground.
4. Small bore Utility and instrument lines top level centre.
5. Branches should connect to the top of headers containing a gas or vapour and to the bottom of headers containing liquids.
6.Equipment elevation and line destination will sometimes dictate the rack elevations.As a general guide, short distances process lines will occupy the lower level and longer distances process lines will occupy the middle and top levels.
7. Careful consideration should be given to economic routing and flexibility of exortic material lines.
8. Lines to be spaced according to the line spacing charts.
9. Line spacing should be checked for expansion clearance at changes of direction.
10. Cable trays are preferably located on the top pipe rack level. Different types of cables require a separate distance.
11. Position of lines may depend on location of utility and process lines entering or leaving the battery limits.
12. Group lines with cold insulation together and locate away from hot insulated lines.
13. Special consideration must be given to the flare or relief header.
14. Lines crossing battery limits will be normally valved requiring platform access.
15. Locate flare header at the edge of the rack to accommodate any flat expansion loops that may be required.
The above points are to be taken care in the rack piping planning.

SAPIII