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Vessel Reinforcement Design Guide

This document provides information and instructions for using a method to calculate the reinforcement required for openings in cylindrical shells of single-walled pressure vessels. It describes inputting variables like design pressure, temperatures, material properties, shell and nozzle dimensions, and angle of the plane. The method checks for sufficient reinforcement of existing openings and allows modifying parameters to re-check the design. It outputs results like required wall thicknesses, reinforcement areas, weld sizes, and maximum projection of nozzles beyond the vessel wall.

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mohd danish
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174 views3 pages

Vessel Reinforcement Design Guide

This document provides information and instructions for using a method to calculate the reinforcement required for openings in cylindrical shells of single-walled pressure vessels. It describes inputting variables like design pressure, temperatures, material properties, shell and nozzle dimensions, and angle of the plane. The method checks for sufficient reinforcement of existing openings and allows modifying parameters to re-check the design. It outputs results like required wall thicknesses, reinforcement areas, weld sizes, and maximum projection of nozzles beyond the vessel wall.

Uploaded by

mohd danish
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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6/22/2017 www.copcosa.com/soft/mecheng03/rop.

htm

Type : Lease.

REINFORCEMENT REQUIRED FOR OPENINGS*


(single-walled vessels)
(REINFORCING PADS)

With this method, you may design for internal pressure:

· Reinforcement required for openings in cylindrical shells.

You may also obtain :

Wall Thicknesses required (Shell and Nozzle)


Area of Reinforcement required
Area of Reinforcement available
Cross-sectional area of various welds available for reinforcement
Cross-sectional area of material added as reinforcement
Total Area Available
Size of reinforcing pad (if required)
Size of fillet welds (Inside, outside and reinforcing pad fillet-if required)
Maximum Nozzle distance projects beyond the inner surface of the vessel wall, less Corrosion allowance.

Furthermore you will be able to:

· Check your existing openings for different conditions .


· Check your reinforcement of openings design modifying some one of the parameters as follows:

· Design Pressure (internal).


· Design Temperature.
· Thicknesses (Vessel and Nozzle).
· Diameters (Vessel and Nozzle).
· Allowable stresses (Materials:Vessel, Nozzle and Pad).
· Joint Efficiency.
· Angle of plane with longitudinal axis.

NOTE : This method applies to all openings other than:

Openings in flat heads.


Openings designed as reducer sections.
Large head openings.
Tube holes with ligaments among them.
Large Openings in cylindrical shells.

EXIT DATA SHEET IS AS FOLLOWS :

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6/22/2017 www.copcosa.com/soft/mecheng03/rop.htm

To introduce the variables you must fill in a sheet as follows :

INPUT FOR CALCULATION METHOD


REINFORCEMENT REQUIRED FOR OPENINGS*
(single-walled vessels)
(REINFONCING PADS)

By : your name
Company : your company name
Date : 01 NOV 2013
Client : name of your client
Reference : Case :

Design Pressure : UNITS internal


Design Temperature : ° F
Shell features
Inside diameter of Shell (id): in
Shell Thickness (t): in
Shell material : ASTM A-285 Gr C
Shell Allowable stress: 13800 lb/sq in
(According to the design Temperature)
Nozzle features

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6/22/2017 www.copcosa.com/soft/mecheng03/rop.htm
Outside diameter of Nozzle (Od): in
Nozzle Thickness (tn): in
Nozzle wall Neck abutting the vessel wall
Nozzle Material : ASTM A-106 Gr B

Nozzle Allowable stress: 15000 lb/sq in


(According to the design Temperature)

Angle of plane with longitudinal 0 ° (0°-90°) (See figure


Fig 1. Opening Features
axis (a): 1)

Corrosion Allowance : 0 in
Joint efficiency, % : 100

Reinforcing pad features (If Required)

ASTM A-285 Gr C
Reinforcing pad material :

Pad Allowable stress : 13800 lb/sq in


(According to the design Temperature) Fig 2. Distance L

If you are sure press submit, if not refresh.

* Following ASME Code Procedures. Pressure Vessels- Section VIII- Division 1.

submit refresh

For more information about this method, contact us at: mechcal@copcosa.com

You can lease this e-software to be used online, unlimited number of times, during 15 days
lease now !

http://www.copcosa.com/soft/mecheng03/rop.htm 3/3

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