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Pressure Vessel Chemical
Cracking
Edward Brunet, Jr., P.E.
Overview
Rupture or leakage of a
pressure vessel can result in serious consequences, including fire and
explosion, fragmentation damage and injury, suffocation or poisoning, chemical
or thermal burns, environmental damage and extended loss of manufacturing
capacity. Inspection programs for metallic pressure vessels and tanks has
revealed a pattern of cracking in certain fluid services. Engineers
involved in the design, fabrication, purchase, inspection and maintenance of
pressure vessels and tanks need to be aware of the fluid services where cracking
has been observed and take measures to mitigate the problem.
This course covers metallic
pressure vessel cracking in some specific corrosive services. The course material
used is the "Pressure Vessel Guidelines" in the OSHA technical manual.
The student must take a
multiple-choice quiz consisting of ten questions at the end of
this course to obtain PDH credits.
Specific Knowledge or Skill Attained
This course teaches the following specific knowledge and
skills:
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The consequences of
pressure vessel leakage or rupture failure.
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Cracking causes and
mitigations for pressure vessels operating in the following services:
deaerator, amine, wet hydrogen sulfide, ammonia, pulp digester
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Description and relative
merits of nondestructive examination methods used to detect vessel cracks,
including visual examination, liquid penetrant testing, magnetic particle
testing, radiography and ultrasonic testing
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Methods to improve the
reliability of nondestructive testing results
Course
Click on the link below to view the course
material - "Pressure Vessel Guidelines" in the OSHA technical manual.
"OSHA
Pressure Vessel Guidelines" - PDF version (86 KB)
"OSHA
Pressure Vessel Guidelines" - Web page
To obtain PDH credits for this course, you will need to take a quiz for
credit. Click on the link below.
(To take the quiz,
your web browser must be set to accept cookies. See how to
check your cookie settings.)
 
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Related Books
Pressure Vessels: The ASME
Code Simplified
Pressure Vessel Handbook
12th ed
Guidebook for the Design of
ASME Section VIII Pressure Vessels
Pressure Vessel
Design Manual
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