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Wuxi Yiteng Pressure Vessel Co, Ltd.
Add：No 58, Zhenyang Road, Qingyang Town, Jiangyin, Jiangsu
Contacts：Mr. Zhang
Tel：13506192042
Fax：0510-86557866
Website：www.yitengrq.com
E-mail：wxzhangyaodong@163.com / yeekai@yitengrq.com

AFP Heat Exchanger

Technical Specifications of AFP Heat Exchanger

(Based on TEMA Naming Convention)
The AFP Heat Exchanger is a specialized type of heat exchanger under the TEMA standard, typically referring to a Fully Welded Plate-Shell Heat Exchanger. Its naming convention and core parameters are as follows:

1.TEMA Naming Convention Breakdown

AFP consists of three letters, each representing a key design feature:

o A: Front Head Type (A = removable flat cover for maintenance access).
o F: Shell Type (F = special shell design, often used for plate-shell or compact configurations).
o P: Rear Head Type (P typically denotes an externally packed floating head, but in AFP, it often refers to a welded plate bundle fixed structure).
o AFP is not a traditional TEMA standard model but an industry-accepted term for fully welded plate-shell exchangers.
o In strict TEMA standards, the "F" shell type denotes a double-pass shell, but in AFP, "F" emphasizes the compact plate-shell design

示例型号：AES-500-120-6/4-2

o 500：壳体直径（mm）
o 120：换热面积（m²）
o 6/4：管程/壳程设计压力（MPa）
o 2：管程数（2程）

2. Key Technical Parameters (Plate-Shell Design)

Parameter	Typical Value/Range	Remarks
Design Standard	ASME VIII Div.1 / TEMA / EN 13445	Requires special certification
Heat Transfer Area	50~5000 m²	Stacked plate design, high compactness
Design Pressure (Shell/Plate Side)	0.6~8.0 Mpa (6~80 bar)	Fully welded structure, high pressure resistance
Design Temperature	-50°C to +400°C	High-temperature models up to 600°C (special materials)
Plate Material	SS316L / 254SMO / Titanium / Nickel Alloy	Corrosion-resistant, laser-welded thin plates
Plate Thickness	0.4~1.2 mm	Must consider stamping strength
Channel Spacing	3~10 mm	Narrow channels enhance heat transfer
Heat Transfer Coefficient	3000~7000 W/(m²·K)	3~5× higher than shell-and-tube exchangers
Pressure Drop (per side)	≤50 kPa	Low flow resistance design
Connection Standard	ANSI / DIN / GB Flanges	DN100~DN800

3. Structural Features

o Fully Welded Plate Bundle: Plates laser-welded into modules, eliminating gasket leakage risks.
o Compact Shell: Volume is only 1/5~1/10 of traditional shell-and-tube exchangers.
o Multi-Pass Design: Plate side configurable as single-pass or multi-pass (2/4 passes).
o Anti-Fouling: Narrow channels + high turbulence reduce fouling deposition.

4. Typical Applications

o 石油化工：天然气液化（LNG）、乙烯裂解气冷却
o 制药/食品：高卫生要求工况（CIP/SIP系统）
o 电力行业：余热回收（烟气冷凝）
o 船舶工程：紧凑型中央冷却系统

5. Data Required for Selection

o 1.Fluid Properties (viscosity, corrosiveness, solid content).
o 2.Temperature/Pressure Curves (transient conditions require special simulation).
o 3.Allowable Pressure Drop (affects plate corrugation design).
o 4.Space Constraints (compactness is a core advantage of AFP).

6. Comparison with Traditional TEMA Exchangers

Feature	AFP Plate-Shell Exchanger	TEMA AES Floating Head Exchanger
Structure	Welded plate bundle + compact shell	Tube bundle + cylindrical shell
Heat Transfer Efficiency	Ultra-high (narrow channel turbulence)	Medium-high (depends on baffle design)
Pressure Rating	≤8.0 Mpa	≤6.4 Mpa
Maintainability	Non-removable, requires chemical cleaning	Mechanically cleanable (tube bundle removable)
Cost	High (complex materials and welding)	Medium

Note: AFP exchangers require custom design. Directly consult manufacturers (e.g., Alfa Laval, Vahterus, LANPEC) for specific operational needs.
Manufacturer References:
International: Alfa Laval (Compabloc), Vahterus, Packinox
China: LANPEC, Sinopec Engineering Group.

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Technical Specifications of AFP Heat Exchanger

1.TEMA Naming Convention Breakdown​​

​2. Key Technical Parameters (Plate-Shell Design)​​