ASME U Stamp Certified 2 Pass TEMA Exchanger U-Bend Design for Thermal Expansion Resistance

Yuhong ASME VIII Div 1 Heat Exchanger:​​ A robust pressure vessel compliant with stringent ASME standards. Features critical components like Shell & Shell Cover, Channel/Stationary Head, Floating & Stationary Tube Sheets, Straight and U-Tubes for heat transfer, Transverse/Longitudinal Baffles for flow optimization, tie rods, expansion boughs, saddles, safety nozzles, and specialized impingement baffles and floating head assembly for reliability and efficiency.

Shell and Tube Heat Exchanger Typical parts and connections

1. Shell
2. Shell cover
3. Shell flange (channel end)
4. Shell flange (cover end)
5. Shell nozzle or branch
6. Floating tube sheet
7. Floating head cover
8. Floating head flange
9. Floating head gland
10. Floating head backing ring
11. Stationary tube sheet
12. Channel or stationary head
13. Channel cover
14. Channel nozzle or branch
15. Tube (straight)
16. Tubes (U-type)
17. Tie rods and spacers
18. Transverse (or cross) baffles or support plates
19. Longitudinal baffles
20. Impingement baffles
21. Floating head support
22. Pass partition
23. Vent connection
24. Drain connection
25. Instrument connection
26. Expansion bellows
27. Support saddles
28. Lifting lugs
29. Weir
30. Liquid level connection

Shell and Tube Heat Exchanger Tube Passes

a, square, When the shell side fluid is fouling and mechanical cleaning is required(tube pitch,in eg. 1inch, 1 1/4 inch)

b, triangular, When the shell side fluid is clean(tube pitch eg. 15/16, 1inch)

c, rotated square, When higher turbulence is required i.e. when Reynolds Number is low (< 2000)

Shell and Tube Heat Exchanger Baffle Type

a, cut-segmental baffle

b, disc and doughnut baffle

c, orifice baffle

Shell and Tube Heat Exchanger Structural Classification

├── Tubular 

      ├── Double pipe 

      └── Shell & tube 

                                   ├── Fixed tubesheet 

                                   ├── U-tube 

                                   └── Floating head 

OTHER TYPES OF HEAT EXCHANGERS

Gasketed / Welded plate and frame heat exchanger

Spiral heat exchanger

Tubular heat exchanger

Plate coils heat exchanger

Scraped surface heat exchanger