Stainless Steel Extruded Finned Tube With SS304 Fin For Petrochemical Refining

Overview

A stainless steel extruded finned tube is a type of heat exchanger tube that is designed to increase the surface area for heat transfer. It consists of a stainless steel tube with fins extruded onto its surface. These fins are typically made from the same material (stainless steel), though they can sometimes be made of other metals, depending on the application.

1. Structure and Materials

• Base Tube: Typically made of stainless steel (e.g., 304, 316L), offering excellent corrosion resistance and high-temperature durability.
• Fins: Formed on the outer surface of the base tube through an extrusion process, creating continuous spiral or straight fins. The fins are integrally formed with the base tube, eliminating contact thermal resistance.

2. Manufacturing Process

• Extrusion Molding: Specialized equipment is used to extrude fins from the outer wall of the stainless steel tube, ensuring tight integration between the fins and the base tube for high heat transfer efficiency.
• Cold Working Process: Processed at room temperature to avoid damaging the material properties.

3. Features

• High Heat Transfer Efficiency: The fins increase the surface area, significantly enhancing heat transfer performance.
• Strong Corrosion Resistance: Stainless steel material is suitable for corrosive environments.
• High-Temperature Resistance: Capable of stable operation in high-temperature conditions.
• High Structural Strength: Integrally formed, providing excellent mechanical properties.
• Easy to Clean: Smooth surface prevents dust accumulation and simplifies maintenance.

4. Application Fields

• Petrochemical Industry: Used in heating furnaces, waste heat recovery systems, etc.
• Power Industry: Applied in boilers, air preheaters, etc.
• Refrigeration Industry: Used in condensers, evaporators, etc.
• Environmental Protection Industry: Utilized in flue gas waste heat recovery, desulfurization, and denitrification equipment.

5. Advantages

• Energy Efficiency: Improves heat exchange efficiency and reduces energy consumption.
• Long Service Life: Stainless steel material resists corrosion and high temperatures, extending equipment lifespan.
• Low Maintenance Costs: Simple structure and easy maintenance.

6. Selection Considerations

• Operating Environment: Choose the appropriate stainless steel material based on temperature, pressure, and corrosiveness.
• Fin Parameters: Select fin height, spacing, etc., according to requirements.
• Dimensions and Shape: Choose tube diameter, length, and fin shape based on equipment specifications.

Summary

Stainless steel extruded fin tubes, with their high heat transfer efficiency, corrosion resistance, and high-temperature durability, are an ideal choice for heat exchange applications, suitable for various industrial scenarios.