Plate-and-shell heat exchanger
| Product Details
Plate-and-shell heat exchangers consist primarily of a plate pack and a shell. The cold‑pressed plates are joined by laser or plasma welding to form a plate pack that contains two separate fluid flow paths: Fluid A flows through the plate-side channels, while Fluid B flows through the shell-side channels.
The operating principle of a plate-and-shell heat exchanger is that a set of corrugated plates, welded by laser or automated plasma welding, is installed within the shell, replacing the heat exchange tubes of a conventional shell-and-tube heat exchanger. This makes it a new type of heat exchanger that uses the plate assembly as the heat-transfer element.
It combines the advantages of plate and shell-and-tube heat exchangers and is widely used in industries such as refrigeration, chemical processing, petroleum, healthcare, food processing, shipbuilding, power generation, papermaking, and oil refining.
Advantages of Plate-and-Shell Heat Exchangers
- High pressure, high temperature, gasket-free, low pressure drop, high heat transfer, compact footprint, minimal fouling, and small terminal temperature difference.
- 1. Gasket-free, non-brazed
- 2. Solid and safe structure
- 3. A unique sealing structure design that prevents media bypass.
- 4. High heat transfer efficiency: It can achieve “pure counterflow,” with both sides of the heat-transfer wall exhibiting high surface heat-transfer coefficients.
- 5. Compact structure and lightweight: The plate-and-shell heat exchanger can achieve a heat transfer area per unit volume that is 70% higher than that of a shell-and-tube heat exchanger.
- 6. Mature and reliable technology
- 7. Resistant to scaling, with convenient maintenance and cleaning.
- 8. Minimal maintenance space requirements and small terminal temperature difference.
Structure Decomposition Diagram
1. Heat exchange core 2. Plate-side drain port 3. Gasket 4. Front cover plate 5. Screw kit 6. Plate-side inlet pipe 7. Flow plate 8. Plate-side outlet pipe 9. Baffle plate
10. Flange 11. Shell 12. Shell-side outlet 13. Lifting lug 14. Vent pipe 15. Shell-side inlet pipe 16. Rear cover plate 17. Shell-side drain port 18. Machine base
Structural classification
Specifications and Parameters
Design temperature: -195~550℃
Design pressure: vacuum to 100.0 bar
Single board area: 0.022–2.0 m²
Plate thickness and operating pressure:
| Plate thickness | Work Stress Level |
| 0.6mm | 10~25 Bar |
| 0.8mm | 10~63 Bar |
| 1.0mm | 40~100 Bar |
Equipment material:
| Housing | Plate |
|---|---|
| Carbon steel | AISI 304 |
| AISI 304 | AISI 316L |
| AISI 316L | AISI 904L |
| AISI 904L | 254 SMO |
| 254 SMO | Titanium |
| Titanium | Nickel |
| Hastelloy | Hastelloy |
| Other | Other |
| When the process fluid is highly corrosive, the plate and shell materials may be different metals. | |
Keywords:
Heat exchanger
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