Industrial High-Frequency Welded Spiral Finned Tubes

1. Structure and Manufacturing

Core Components

PartMaterial OptionsKey SpecificationsBase TubeSeamless/welded steel pipeCarbon steel/Stainless steelSpiral FinsSteel/Aluminum strips0.3-1.5mm thickness

Manufacturing Process

1. Pre-treatment: Degreasing and derusting of base tubes
2. Fin Formation: Spiral winding of metal strips (pitch: 5-12mm)
3. High-Frequency Welding:
   • Welding speed: 5-20m/min
   • Bonding strength: ≥95% weldability rate
4. Quality Tests: Pressure/leakage inspections

2. Performance Characteristics

ParameterPerformance DataAdvantageHeat Transfer Efficiency4-7× higher than bare tubesReduced energy consumptionPressure Resistance≤4MPa working pressureSuitable for high-pressure systemsTemperature Range-40°C to +650°CWide industrial applicabilityService Life15+ years (2× bare tubes)Low maintenance cost

Key Features:

• Near-zero contact thermal resistance at 210°C
• Corrosion resistance via material customization
• Compact design saves 30-50% space

3. Applications

IndustryUse CaseExample EquipmentPetrochemicalHeat recovery systemsReactor heat exchangersPower PlantsBoiler economizersFlue gas heat recoveryPharmaceuticalsEvaporators/CondensersDrying systemsFood ProcessingRefrigeration unitsIndustrial ovens

4. Conclusion

This technology exemplifies industrial energy-saving innovation, combining robust mechanical properties with superior thermal performance.

Industrial high-frequency welded spiral fin tube

Industrial high-frequency welded spiral fin tube is an efficient and energy-saving heat exchange element, which is widely used in the industrial field. The following is its related introduction:

Structure and process of industrial high-frequency welded spiral fin tube

Structure: It consists of a base tube and fins. The base tube is usually made of seamless steel pipe or welded steel pipe, and the materials are stainless steel, carbon steel, etc. to meet the requirements of different use environments and media. The fins are welded to the outer surface of the base tube by high-frequency welding process to form a spiral structure.

Manufacturing process: First, the base tube is pre-treated by rust removal and cleaning; then the metal sheet is processed into spiral fins with professional equipment, and welded to the base tube at a certain spacing and arrangement. High-frequency welding has fast speed, high quality, and small heat-affected zone, which can ensure that the fins and base tubes are firmly welded and leak-free. Finally, quality inspections such as appearance inspection, pressure resistance test, and leakage test are carried out.

Performance characteristics of industrial high-frequency welded spiral finned tubes

Efficient heat exchange: spiral fins increase the heat exchange area, and can make the fluid form a strong turbulent effect, optimize the flow channel design, enhance heat transfer, improve heat conduction efficiency, and allow the heat exchanger to achieve a higher heat exchange effect in a short time.

Strong pressure bearing capacity: the base tube adopts seamless steel pipe or welded steel pipe, which has a high pressure bearing capacity and can adapt to various high-pressure working environments.

Good welding quality: the high-frequency welding process makes the welding between the fin and the base tube firm, the contact thermal resistance is close to zero, the heat loss is small, and the welding rate can reach more than 95%. The welding heat affected zone is small, the self-cooling effect is strong, and the welding is not easy to oxidize.

Good corrosion resistance: according to the use environment and medium, the appropriate material and surface treatment process can be selected, with good corrosion resistance, can adapt to different working environments, and extend the service life.

Energy saving and environmental protection: efficient heat exchange performance can reduce energy consumption and emissions, which is in line with the trend of energy saving and environmental protection.

Other advantages: can improve the degree of gas turbulence and reduce the flow resistance of flue gas; adapt to a wide temperature range; small flue gas resistance, reduced wear, long service life, about twice as long as the light tube; can save raw materials and reduce equipment space.

Industrial high-frequency welded spiral fin tube application field

Widely used in heat exchangers, radiators, waste heat recovery and other fields in petrochemical, electric power, metallurgy, pharmaceutical, food and other industries. For example, heating furnaces and reactor heat exchange systems in the petroleum industry, evaporators and condensers in the pharmaceutical industry, refrigeration equipment and ovens in the food processing field, etc.