3D Model: Heat Exchanger (CAD, SolidWorks)

Summary — Heat Exchanger

Type: Shell-and-tube heat exchanger with stationary tubesheet and bonnet.

Dimensions:

• Total length: 2250 – 2440 mm
• Outer diameter: Ø636 mm
• Internal volume: 2325 cm³

Connections:

• Hot Fluid Inlet/Outlet: Ø4" SCH 80
• Cold Fluid Inlet/Outlet: Ø4" SCH 80

Main Components:

• Shell + Bonnet + Stationary Tubesheet
• Internal tubes Ø1/2 (lengths 4766–5000 mm)
• Spacer tubes Ø3/8 (various lengths)
• Superior & Inferior Baffles + Additional Baffles
• Welding Neck Flanges Class 600 Ø4"
• Support Saddles (2)
• Standard studs & nuts
• Sealing gaskets

Challenges I faced during the design:

I re-designed all the parts manually using SolidWorks 2012, and I could not use the standard parts library because my version was incomplete, so I relied entirely on inputting dimensions from the measurement file.

• I encountered difficulties arranging the tubes within the casing to avoid overlapping the baffles, which required multiple adjustments to the tube spacing.
• Accurately calculating the internal volume was difficult due to the complexity of the internal components (tubes, spacers, and baffles).
• Selecting the correct flange dimensions and matching them to ASME B16.5 standards took a long time, as I had to align them with the dimensional options on the drawing.
• The file size was very large when exported to STL (approximately 100 MB), making it difficult to upload to platforms.

Disclaimer: The original design was not created by me. I found a measurement file (technical drawing) on the internet and re-modeled it in SolidWorks for training and learning purposes only.
Note: This model is intended for educational and training purposes only, and is not to be used in industrial applications or real operation.