Difference between revisions of "Pressure Vessels"

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=Designs and Codes=
 
=Designs and Codes=
Many countries have codes and standards concerning pressure vessels. The codes provide guidance on design, materials of construction, fabrication, inspection, and testing. In North America, the  American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME BPV Code) is used. There are twelve sections, and section VIII has three subdivisions. The sections are listed below. (Towler 3-5)
+
Many countries have codes and standards concerning pressure vessels. Compliance is usually legally required. The codes provide guidance on design, materials of construction, fabrication, inspection, and testing. In North America, the  American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME BPV Code) is used. There are twelve sections, and section VIII has three subdivisions. The section titles are listed below. Other sets of codes exist for storage tanks, fittings, and piping. It is important to always use the most recent revisions in design. (Towler 3-5)
  
 
TABLE "American Society of Mechanical Engineers Boiler and Pressure Vessel Design Codes"
 
TABLE "American Society of Mechanical Engineers Boiler and Pressure Vessel Design Codes"
  
 
I    Rules for construction of power boilers
 
I    Rules for construction of power boilers
 +
 
II    Materials
 
II    Materials
 +
 
III  Nuclear power plant components
 
III  Nuclear power plant components
 +
 
IV    Rules for construction of heating boilers
 
IV    Rules for construction of heating boilers
 +
 
V    Nondestructive examination
 
V    Nondestructive examination
 +
 
VI    Recommended rules for the care and operation of heating boilers
 
VI    Recommended rules for the care and operation of heating boilers
 +
 
VII  Recommended guidelines for the care of power boilers
 
VII  Recommended guidelines for the care of power boilers
 +
 
VIII  Rules for the construction of pressure vessels
 
VIII  Rules for the construction of pressure vessels
 +
 
       D1
 
       D1
 +
 
       D2    Alternative rules
 
       D2    Alternative rules
 +
 
       D3    Alternative rules for the construction of high pressure vessels
 
       D3    Alternative rules for the construction of high pressure vessels
 +
 
IX    Welding and brazing qualifications
 
IX    Welding and brazing qualifications
 +
 
X    Fiber-reinforced plastic vessels  
 
X    Fiber-reinforced plastic vessels  
XI    Rules for in service inspection of nuclear power plant components
+
 
XII  Rules for costruction and continued service of transport tanks
+
XI    Rules for in service inspection of nuclear  
 +
power plant components
 +
 
 +
XII  Rules for construction and continued service of transport tanks
 +
 
 
=Conclusion=
 
=Conclusion=

Revision as of 20:24, 29 January 2014


Title: Pressure Vessels

Author: David Chen

Steward: Fengqi You

Date Presented: January 13, 2014 /Date Revised: January 14, 2014


Contents


Introduction

Codes for pressure vessels can be found in the ASME Boiler and Pressure Vessel Code (ASME BPV code). While there is no formal definition, generally any closed vessel over 150 mm in diameter and that will experience a pressure difference of greater than 0.5 bar can be classified as pressure vessels. Types of equipment that can fit these descriptions include many reactors, separation columns, flash drums, heat exchangers, surge tanks, and storage vessels. Pressure vessels with a wall-thickness:diameter ratio of less than 1:10 can be classified as thin-walled, and the rest, thick-walled.(Towler)

Generally, chemical engineers will not be directly involved in detailed mechanical design of pressure vessels. This will be handled by mechanical engineers with experience in the field. However, chemical engineers will need to understand basic concepts of pressure vessel design in order to estimate costs and communicate specifications to those who will carry out the design (Towler/UOP).

Designs and Codes

Many countries have codes and standards concerning pressure vessels. Compliance is usually legally required. The codes provide guidance on design, materials of construction, fabrication, inspection, and testing. In North America, the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME BPV Code) is used. There are twelve sections, and section VIII has three subdivisions. The section titles are listed below. Other sets of codes exist for storage tanks, fittings, and piping. It is important to always use the most recent revisions in design. (Towler 3-5)

TABLE "American Society of Mechanical Engineers Boiler and Pressure Vessel Design Codes"

I Rules for construction of power boilers

II Materials

III Nuclear power plant components

IV Rules for construction of heating boilers

V Nondestructive examination

VI Recommended rules for the care and operation of heating boilers

VII Recommended guidelines for the care of power boilers

VIII Rules for the construction of pressure vessels

     D1
     D2     Alternative rules
     D3     Alternative rules for the construction of high pressure vessels

IX Welding and brazing qualifications

X Fiber-reinforced plastic vessels

XI Rules for in service inspection of nuclear power plant components

XII Rules for construction and continued service of transport tanks

Conclusion