Finned Tubes are widely used in power and chemical industries. Many spiral heat transfer surfaces or threaded tubes can be considered as finned tubes. It has a significant effect on expanding the heat transfer area and promoting turbulence, and has a great influence on single countercurrent heat transfer and phase change convective heat transfer. The structure of the Finned Tube Heat Exchanger is basically the same as that of the general shell and tube Heat Exchanger . Only finned tubes are used instead of bare tubes as heat transfer surfaces. Finned Tube heat exchangers are also commonly used to heat or cool the gas outside the tube and transfer steam or water inside the tube, such as air coolers, boiler economizers, radiators, etc.
There are many kinds of materials for finned tubes, including Stainless steel, carbon steel, titanium-copper alloy, etc., and the corrosion resistance is greatly improved.
Laser Welded Spiral Finned Tube is a new type of wear-resistant and efficient heat exchange material in the finned tube welding industry. It is an energy-saving heat exchange element with high heat exchange efficiency, large cooling area, long service life and strong adaptability. Wide temperature range, high pressure resistance, in line with national energy conservation and environmental protection emission standards. Widely used in waste heat recovery, petrochemical, power plant boilers, economizers, passenger cars, industrial and civil building heating, refrigeration systems and other industries.
Murphy Thermal Energy (Suzhou) Co., Ltd. has been focusing on the development and research of integrated laser-welded finned tubes and single-layer double-layer spiral coils. It is used in various fields such as power generation and home improvement. The surface is the most widely used in the boiler industry, as a heating surface, environmental protection, Energy Saving and High Efficiency. Laser Welded Finned Tubes are the most advanced products at present and have irreplaceable advantages. Its advantages in heat exchange waste heat of boilers and chemical industry have been fully utilized.
Laser welding of finned tubes is a laser welding machine for spiral finned tubes that integrates laser technology, metal molds, and numerical control automatic control. Simple operation, flexible and convenient production. It overcomes a series of problems such as broken finned tubes, slow speed, poor forming, and wrinkling during welding. All parameters and techniques for laser welding finned tubes have been successfully developed.
Spiral Finned Tube laser welding machine is composed of high-power automatic laser pick-up machine, fully automatic CNC fixture, automatic feeding machine and other auxiliary equipment. Murphy will talk about the five characteristics of Laser Welding Of Spiral Finned Tubes soon:
1: The thickness of the base tube can be 0.8-1.5mm, and the thickness of the fin can be 0.3-1mm. Compared with other processes, the material cost is greatly saved.
2: High Penetration Rate, which can prevent crevice corrosion, prolong service life and reduce heat transfer and heat resistance.
3: Break through the limitations of materials and use different materials for processing.
4: Easy to reprocess, can be curled and bent directly.
5: The welding heat-affected zone is small, and the metallographic change is small, making it possible to process small-diameter finned tubes.
