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Lord Fin Tube-Three-dimensional finned tube

What is three-dimensional finned tube?

The three-dimensional inner and outer rib finned tubes are the most recent generation of high-efficiency heat-strengthening elements that compensate for the shortcomings of second-generation low-ribbed heat-strength tubes. The fluid is promoted on the inner and outer surfaces of the tubes by expanding the heat transfer area inside and outside the tubes. The movement reduces the thickness of the fluid boundary layer and increases the singularity of fluid heat transfer, greatly improving heat transfer performance and providing a perfect solution for heat exchanger heat transfer enhancement.

The three-dimensional tapered finned tube is made up of a tube body and a plurality of fins disposed on the tubes outer surface, where the plurality of fins are uniformly distributed in a thread shape on the tubes outer surface and run around the circumference of the circle. The fins are evenly distributed, with a thick root and a thin tapered top, and the upper and lower surfaces of the fin are flat and oblique upward in the axial direction. In comparison to the prior art, the present invention has the advantages of not being easily detached fins and having a high three-dimensional height.

What is three-dimensional finned tube usage?

Internal and external rib finned tubes with three dimensions can be used in the petroleum, chemical, metallurgy, electric power, refrigeration, machinery, gas, engineering machinery, hydraulic, and other industries. It can exchange heat between various media in various states, including gas liquid, liquid liquid, gas, water vapor, and gas steam. Pipe materials commonly used for processing include copper and copper alloys, aluminum and aluminum alloys, stainless steel, titanium, carbon steel and others.

Three-dimensional internal and external rib fin performance characteristics

1. The convective heat transfer coefficient of a single fluid can reach 2.5 to 6 times that of a light pipe, the boiling heat transfer coefficient can be 2 to 5 times that of a light pipe, and the condensation heat transfer coefficient can reach 3 to 5 of a light pipe;

2. The rigid and flexible processing technology of three-dimensional inner and outer rib tube technology is suitable for all ductile metals;

3. Reduce the volume and weight of the heat exchanger, save 30-70%, reduce the volume by 30-70%;

4. Improve the heat exchange capacity of the heat exchanger, achieve high efficiency, energy saving, and increase the heat exchange power by 2-4 times;

5. The heat efficiency of the heat exchanger is increased by 30-50%, energy saving and environmental protection;

6. The heat exchanger can work under low temperature difference, make full use of low grade energy and reduce thermal pollution;

7. Improve the working conditions of heat exchangers and improve operational safety;

8. Eliminates contact thermal resistance and extends heat exchanger operating life.

Three-dimensional finned tube

Three-dimensional finned tube

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