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Advantages and Disadvantages of Cold Storage Aluminum Pipe and Seamless Steel Pipe |
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Creatime: 2017/2/27 |
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High heat transfer efficiency
Aluminum heat transfer capacity is good, the configuration is reasonable, the heat transfer capacity is increased by 20%, the evaporation temperature of the refrigerant in the tube and the temperature difference of the inside temperature are small, the evaporation temperature is increased, the energy efficiency ratio of the compressor is increased, the energy consumption is reduced and the energy saving effect is remarkable.
2, the structure design is reasonable
The same length of the aluminum tube its inner surface area is 1.5 times the steel pipe, the surface area is 2.5 times the steel pipe, the volume of steel is a quarter of the row, the refrigerant with less, 2/3, save system operating costs. The same size of the cold storage, aluminum row only need to configure the top row will be able to meet the requirements, and steel need to configure the wall row pipe. From the convective heat transfer way, the top row is the most reasonable, convection heat transfer efficiency is the highest.
3, light weight
The evaporation area of the unit is one-sixth the weight of the steel row. Thus easy to install, support cost reduction.
4, aluminum row production in the plant to complete the quality of performance is guaranteed, steel production site trouble, the quality is difficult to guarantee.
5, aluminum row of internal finish high, easy to clean, extend the service life of the compressor, and steel corrosion, causing the system blockage.
6, fluorine system configuration aluminum row, aluminum row can be configured electric heating device, to solve the problem of steel defrosting difficult.
7, aluminum row of each wing fins and tube one extrusion, high pressure, good strength.
8, cost-effective superior
The heat transfer coefficient of the aluminum row is in the range of -40 ℃ ~ 0 ℃ evaporation temperature K ≈ 9 ~ 14w / m2 • ℃, the heat transfer coefficient of the steel pipe is -40 ℃ ~ 0 ℃ evaporation temperature K ≈ 8 ~ 13w / m2 • ℃ , The same cold storage (load the same case), aluminum row configuration of the evaporation area is less than steel pipe. In addition, from the aluminum cost and advanced die-casting process and other comprehensive costs, aluminum unit area price is higher than the steel pipe but the aluminum pipe performance is much higher than the steel pipe, the overall cost-effective aluminum than steel, so the choice of aluminum Row is the ideal solution.
On the whole, although the unit evaporation area of aluminum row cost is higher than the steel row, but from the lower energy consumption, energy saving 30% of the long-term, its performance is much better than steel, aluminum market prospects. |
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