The technical characteristics of finned tubes are mainly manifested in what aspects
The heating surface of the spiral finned tube as a heat transfer component has the following characteristics:
(1) The total heat transfer area outside the water pipe increases, and the total heat transfer area of the spiral fin tube expands the total heat transfer area outside the light tube, and under the same size , the total heat transfer area is several times or even dozens of times that of the light tube, so it obviously improves the heat transfer work capacity on both sides of the tube and the heat transfer efficiency of the heating surface.
(2) The compact structure of the heating surface The spiral fin tube bundle increases the total heat transfer area in the enterprise volume and can reduce the volume of the heating surface under the same heat generation conditions. heat. (3) Alleviate the damage of the heating surface Because the improvement of the heat conduction work capacity of the heating surface of the spiral fin tube can reduce the rate of fluid mechanics outside the water pipe, so the damage of heating surface is greatly alleviated. Because the spiral fin tube bundle has the characteristics, the thermal equipment used as a heat transfer component has the advantages of compact structure, low production of metal materials and low operating costs, so it can be used in the industrial boiler boiler economizer, tubular air preheater, heat convection volatile heating surface and its heat exchange equipment of metallurgical industry and chemical plant system software. Abroad, in the 20s of the 60th century, spirally finned tubes were only used in boiler economizers. In order to reduce the smoke rate in the high ash industrial boiler and alleviate the damage of the boiler economizer, the former Soviet Union basically selected the spiral finned tube boiler economizer to carry out a series of industrial boilers in experimental scientific research.
(1) The total heat transfer area outside the water pipe increases, and the total heat transfer area of the spiral fin tube expands the total heat transfer area outside the light tube, and under the same size , the total heat transfer area is several times or even dozens of times that of the light tube, so it obviously improves the heat transfer work capacity on both sides of the tube and the heat transfer efficiency of the heating surface.
(2) The compact structure of the heating surface The spiral fin tube bundle increases the total heat transfer area in the enterprise volume and can reduce the volume of the heating surface under the same heat generation conditions. heat. (3) Alleviate the damage of the heating surface Because the improvement of the heat conduction work capacity of the heating surface of the spiral fin tube can reduce the rate of fluid mechanics outside the water pipe, so the damage of heating surface is greatly alleviated. Because the spiral fin tube bundle has the characteristics, the thermal equipment used as a heat transfer component has the advantages of compact structure, low production of metal materials and low operating costs, so it can be used in the industrial boiler boiler economizer, tubular air preheater, heat convection volatile heating surface and its heat exchange equipment of metallurgical industry and chemical plant system software. Abroad, in the 20s of the 60th century, spirally finned tubes were only used in boiler economizers. In order to reduce the smoke rate in the high ash industrial boiler and alleviate the damage of the boiler economizer, the former Soviet Union basically selected the spiral finned tube boiler economizer to carry out a series of industrial boilers in experimental scientific research.
