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螺旋管式蒸汽发生器或热交换器在核电站、直流锅炉和各种化工设备等领域中都有相当广泛的应用.在高压水回路上对螺旋管中汽液两相强制对流沸腾传热特性进行了试验研究,得到了立式上升流动螺旋管内过冷水紊流流动和过热蒸汽紊流流动时的放热系数.用修正L-M关系式整理了立式上升流动螺旋管内两相强制对流区放热系数,螺旋管在该区的放热系数大致范围为25~40 kW/(m2·℃).

参考文献

[1] Collier J G.Convection Boiling and Condensation[M].Mcgraw-Hill Book Company,1972:183-202.
[2] Bergles A E.Two-Phase Flow and Heat Transfer in the Power and Process Industries[M].Mcgraw-Hill Book Company,1981:231-245.
[3] Butterworth D;Hewitt G F.Two-Phase Flow and Heat Transfer[M].New York:Oxford University Press,1977:135-148.
[4] 周云龙 .高温气冷堆蒸汽发生器两相流不稳定性[D].西安交通大学,1990.
[5] Seban R A .Heat Transfer in Tubes Coils with Laminar and Turbulent Flow[J].International Communications in Heat and Mass Transfer,1963,6(04):387-395.
[6] Roges G F C .Heat Transfer and Pressure Loss in Helical Coiled Tubes with Turbulent Flow[J].International Journal of Heat and Mass Transfer,1964,7(11):1207-1216.
[7] Lockhart R W .Proposed Correlation of Data for Isothermal Two-Phase,Two-Component Flow in Pipes[J].Chemical Engineering Progress,1949,45(01):39-48.
[8] 周芳德 .高压下螺旋管两相流动与传热特性研究[D].西安:西安交通大学,1985.
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