Alfalaval Corrugated Plate Heat Exchanger Heat Recovery Cooling

Product Description

Heat Recovery Cooling Alfalaval Heat Exchanger Plate With SS316 SS304 Titanium Material

Heat Exchanger Plates

1. Heat exchanger plates are the key components of plate heat exchangers. Its design mainly considers two factors: ① causing strong turbulence in the fluid at low speed to enhance heat transfer; ② improving the stiffness of the plate to withstand higher pressure.
2. The corrugated form of the heat transfer plate has a great influence on the heat transfer efficiency and flow resistance. Among them, herringbone corrugated plates and horizontal straight corrugated plates are the most widely used.
3. The cross-section shape of the herringbone corrugated plate is usually triangular, and the angle between the herringbones is usually . The fluid flows in from an angular hole at one end of the plate and can flow out from the angular hole on the same side at the other end, which is called "unilateral flow", or it can flow out from the angular hole on the other side of the other end, which is called "diagonal flow".
4. The herringbone corrugated plate not only has good rigidity, but also has better heat transfer performance. The heat transfer coefficient of the domestically improved herringbone corrugated plate water-water heat exchanger reaches above, and the pressure drop has also been improved. However, the flow resistance of herringbone corrugated plates is large and is not suitable for fluids containing particles or fibers.
5. Horizontal straight corrugated plate is a horizontal straight corrugated plate with an isosceles triangle cross-section shape. Its heat transfer and fluid mechanics properties are both good, and the water-water heat transfer coefficient can be reached. Other cross-sectional shapes include pleated triangular corrugations (British APV Company) and stepped corrugations (NPH type plates manufactured by Japan Distillation Industry), all of which fall into this category.

Products are mainly suitable for Alfalaval/ACCESSEN/GEA (Kelvion)/ APV/ Sondex/ Tranter/ Hisaka/ API/ Funke/ Vicarb/ Mueller/ SWEP/ Fischer/ AGC/ Thermalwave/ ITT/ LHE/ DHP, etc.

Applacations

Plate heat exchanger plate thickness configuration

• AISI 304 is usually 0.4 or 0.5 mm thickness
• AISI 316 is always 0.5 and 0.6 mm
• 254 SMO (high alloy) typically 0.6 mm
• Titanium plates are always 0.5 and 0.6 mm
• Some have thicker plates (for high pressure applications)
• Some PHEs have 0.4 mm (low pressure operation)
• Hastelloy C-276 (nickel alloy) typically 0.6 mm

Production Process:

• Raw material preparation: High-quality stainless steel plates are selected as raw materials due to their excellent corrosion resistance and thermal conductivity. The plate thickness is determined based on product specifications and design requirements.
• Cutting and leveling: The stainless steel plates are accurately cut using machine tools to meet the design requirements. After cutting, leveling treatment is performed to ensure a smooth and even surface.
• Stamping: The flattened plates undergo stamping using a hydraulic press to create specific herringbone patterns. The resulting plates have a high turbulence coefficient, promoting efficient heat transfer. Precise control is maintained during the stamping process to prevent plate deformation or damage.
• Surface treatment: The plates undergo surface treatment such as polishing, sandblasting, or coating to enhance corrosion resistance and heat transfer performance. The choice of treatment method depends on specific requirements.
• Assembly and inspection: The plates are assembled according to the design requirements, forming a detachable plate heat exchanger with rubber gasket seals or a fully welded plate heat exchanger through argon arc welding. Tight fitting and absence of gaps are ensured during assembly. A rigorous performance pressure test is conducted after assembly, and a factory report is issued to verify compliance with quality standards.
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