|
|
|
|
|
|
|
MT-VESS Mechanical design of Pressure Vessels The program
MT- VESS allows the mechanical design and the stability check of
horizontal / vertical pressure vessels. Rating of existing pressure
vessels is alsallowed.
The following main functions are provided:
• Calculation of thicknesses and dimensions of all vessels
components.
• Assembling and geometrical sizing of the vessel as a whole.
• Vessel stability check.
| ALLOWED CODES |
|
• ASME VIII division 1 (U.S.A.)
• AD-MERKBLATT (Germany)
• ISPESL-VSR (Italy)
• BS5500 (App. G) (U.K.) (Brackets) |
| ALLOWED COMPONENTS |
|
The
following components can be analyzed by the program, as
individual components or assembled in a complete vessel
configuration:
• Formed Heads (Spherical, Elliptical,Torispherical)
• Flat Heads (Welded, Flanged)
• Cylindrical Shells
• Conical Sections
• Main Flanges
• Nozzles (Radial, Inclined, Hillside)
|
 |
|
|
|
|
|
ELEMENT TYPE
|
|
|
For allowing the maximum of freedom in
defining a complex vessel, ensuring, at the same time, a
complete consistency of the defined configuration, the
following elements are taken into account by the program:
MAIN
{Structural resistent elements }
INTERMEDIATE {Elements to
divide the vessel in different pressure chambers}
APPENDIX {Elements with axis orthogonal to
the main vessel axis}
JACKET {Elements for heat exchanging
with external fluids}
|
| |
|
SUPPORTS
|
|
|
The
following supports can be analyzed and dimensioned:
• Saddles
• Legs
• Brackets
• Skirts
|
|
|
NOZZLES
|
|
Nozzle capabilities are as follows:
• Nominal diameters between 10 and 1.500 mm (3/8” to 60”)
• Automatic material selection from pipe or plate
• Automatic verification of the nozzle hole and pad
reinforcement calculation
• Nozzle welding analysis
|
|
INTERNALS
|
|
For
allowing a more detailed weight definition the following
internals can be specified:
• Demister
• Catalysts
• Distillation Trays
• Liquid Distributors
• Packings
• Coatings
• Inerts
|
|
ANALYSIS CAPABILITIES
|
|
MT-VESS is a powerfull, full featured program, that allows
engineers, estimators, manifacturers to perform quick and
accurate analysis on vessels components and/or on the entire
vessel.
• Internal pressure calculation.
All the vessel components
are calculated to the internal conditions of design and
hydraulic test. For each element the user can specify two
different pressure and temperature conditions to be
verified.
• Geometrical sizing of the vessel.
The program provides for
a comprehensive geometrical sizing including all the quotas,
distances and dimensions of each component and of the vessel
as a whole.
• Weight calculation.
The program calculates all the weight of each
component and in addition the weight of the vessel
in operation, in hydraulic test, in erection.
• Check to the external pressure.
The program automatically verifies the equipment for
external pressure and, if necessary, installs stiffening
rings, increases thickness or does both according to the
user specifications.
• Stability check to the combined effects of forces and
moments generated by the vessel weight, by the wind and
earthquake loads, and by forces and moments specified by the
user. The resultant forces and moments are applied to the
supports for checking stability and calculating loads acting
over the foundations. The wind and earthquake analysis can
be carried out according to the following codes:
| WIND |
EARTHQUAKE |
| ANSI |
ANSI 1982 |
| ASCE 7-95 |
ASCE 7-95 |
| BSI CP3 |
CNR 1986 |
| CNR 1982 |
PARASISMIQUE PS92 |
| CNR 1996 |
UBC 1988 |
| NEIGE ET VENT |
UBC 1994 |
| UBC 1994 |
UBC 1997 |
| UBC 1997 |
USER |
| USER |
|
• Supports positioning and stability checks
Saddles The check is carried on according to
the method of Prof. Zick
Brackets The check is carried on according to
the method of Prof. Bijlaard and
B.S.5500
• Vibration Analysis
|
|
INPUT
|
|
The input for MT-VESS is
very easy:
• The vessel is defined
interactively adding one
component after the
other selecting them
from
the icons tabs in the
command line. The vessel
is automatically redrawn
after each operation
for checking the
results.Other screens,
operating
in the same way allow
for inserting other
components
(Support, Nozzles,
Internals) until the
vessel geometry is
completely defined.
• The majority of the
data are preset and the
user
simply selects from a
list.
• When needed, drawing
are associated to the
input fields to make the
selection even easier.
•
Extended data banks,
user customizable, are
included in the program
covering:
• Materials
Mechanical properties for over 350 materials (ASME and UNI,
EUROMARK)
• Nozzle (pipes and flanges)
(ASA, UNI)
• Gaskets
Table include data for 80 gaskets
(ASME/VSR and AD-MERKBLATT)
• ASME charts for external pressure
All the charts provided by the ASME are included
•
Supports Standards
|
• Saddles For
|
} horizontal
vessels
|
|
• Brackets
|
} For vertical
vessels
|
|
• Skirt
|
|
• Legs
|
• All the data, common
to a project, can be
stored and shared by all
the vessels belonging
to the same project.
• Units measurement
systems are completely
free and customizable.
The user can insert
new units, define new
unit systems or modify
on the fly a single unit
for a property
• Definition of
materials classes avoids
that the
user needs to specify
the materials for all
the
components of the
vessel.
|
|
OUTPUT
|
|
• Tabular Report
All the data of the
vessel are printed out
including the results of
numerical calculation
and geometrical
dimensions.
• Bill of
Material
All components belonging
to the vessel under
design are summarized in
a table with dimensions,
weights, number of
items.
• Drawings
Two or more sheets are
automatically generated
by the program,
depending from the
vessel complexity:
• Tables related to:
Design data, Loads on foundation, Materials,
Nozzles, General notes,
Flanges details, Flat
flanged heads details,
Revisions.
• General view of the vessel
The front and side view of the vessel is scaled in
order to show the
relative dimensions of
the vessel components.
• Nozzles and internals
details
This scaled drawing shows the nozzles, in both
longitudinal and
circumferential view,
and internals details.
For simple vessels this
drawing and the
previous one can be
combined in only one.
• Appendices details
If appendices are present, a sheet is generated
by the program showing the appropriate
details.
Drawing can be generated in English or in Italian
language (Additional languages can be easily
implemented).
The measurement system units of the drawings
is user definable.
The drawing is generated in DXF format and can
be imported by the most common and diffused
CAD programs (AUTOCAD, MICROSTATION etc.).
This gives the user the further possibility to manage
the drawing in order to modify or add details
according to its own standards.
• Audit Reports
Book
For all the vessel
components datasheets
reporting formulas and
substituitions are shown
on the screen and can be
printed or saved on a
file.
Datasheets can be
produced in english or
italian languages,
selecting S.I. or
English system of
measurement units.
|
 |
| |
| |
| |
| |
|
|
Alpha Afzaar Inc. © 2012 • All rights reserved •
|
|
