MICRO TECHNO snc, Ciampino, Italy See
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MT-EXCH
MECHANICAL CALCULATION OF SHELL & TUBES HEAT EXCHANGERS
The program MT-EXCH allows the mechanical design and
the stability check of shell & tubes heat exchangers.
Key Advantages
Calculation of thicknesses and dimensions of all the
exchangers components.
Assembling and geometrical sizing of the exchanger as a
whole.
Importing the thermal rating data from other programs,
see:
CC-THERM
Input/Output data in a system of measurement defined by
the user.
Analysis Capabilities
Internal pressure calculation
All the exchanger components, shell side and tube side, are calculated to the internal
conditions of design and hydraulic test. The components in contact with both the shell
side and the tube side are automatically checked to the pressure acting on the external
side.
Geometrical sizing of the exchanger
The program provides for a comprehensive geometrical sizing including all the quotas,
distances and dimensions of each component and of the exchanger as a whole. The reference
to constructive standards included in the program manual allows the user to have quickly
the rated setting plan of the exchanger.
Weight calculation
The program calculates all the weights of the singular components and in addition:
- Empty weight of the exchanger
- Weight of the tube bundle
- Weight of the exchanger full of water
Check to the external pressure
The program allows for the installation of stiffening rings or for the thickness
increasing or for a combination of the two possibilities.
Stability check to the combined effects of
forces and moments generated by the exchanger 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 the stability checks and the calculation of loads acting over
the foundations.
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
Both the channel and the rear end can be of conical
type.
Exchanger Components
Formed heads (elliptical, spherical, torispherical)
Flat flanged heads
Shell barrels
Conical sections
Girth flanges
Tubesheets
Expansion joint
Floating heads (flange and cover)
Nozzles
Supports
Saddles, for horizontal exchangers
Brackets, for vertical exchangers
Nozzles
Nominal diameters from 10 to 1000 mm
Automatic selection of the material from plate or pipe
Check of the opening and reinforcing pads calculation
Databanks
Materials
Mechanical properties for over 300 materials (ASME and UNI)
Flanges and nozzles
ASA, UNI, AFNOR
Gaskets
ASA, UNI
ASME charts for external pressure
Standards for supports
Drawings
Tables related to:
- Design data
- Tubes bundle data
- Loading data & weights
- Nozzles
- General notes
- Reference standards
- Revisions
- Materials
Setting plan and nozzles positioning:
- The drawing is scaled in order to show the relative dimensions of the exchanger
- The nozzles are shown both in longitudinal and circumferential views
Constructive drawing and baffles positioning:
- All the exchanger components are drawn with quotas and dimensions
Drawings can be generated in English or in other
languages using a system of unit of measure defined by the user.
Drawings are generated in DXF format and can be
imported by the most common CAD programs (AutoCAD, MicroStation, etc.) This gives the user
the further possibility to manage the drawing in order to modify or to add details
according to its own standards.