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1. 发明授权

US5409056A U-flow tubing for evaporators with bump arrangement for optimized forced convection heat exchange 失效
标题翻译：用于蒸发器的U形流管，具有用于优化的强制对流热交换的凸起布置
公开(公告)号：US5409056A
公开(公告)日：1995-04-25
申请号：US882181
申请日：1992-05-11
申请人： James E. Farry, Jr. , Don C. Corser , Elroy D. Powley
发明人： James E. Farry, Jr. , Don C. Corser , Elroy D. Powley
IPC分类号： F28D1/03 , F28F3/04
CPC分类号： F28D1/0341 , F28F3/044
摘要： A multi tube evaporator with tubes having elongated side passages interconnected by an end crossover passage. The tube has oblong internal bumps in the side passages that have a low angle with the normal and partly spherical bumps in the crossover passage arranged so that heat transfer between the air passing past the tubes and the refrigerant passing through the tubes is by conduction through the walls of the tubes and the boundary layer of refrigerant moving along the inner walls of the tube and by forced convection of heat energy between the boundary layer and the main flow of refrigerant flowing therethrough. The low angle bumps in the side passages provide the least amount of drag of the refrigerant while effectively reducing the thickness of the boundary layer thereof to reduce its insular effect. The spherical bumps in the crossover are insensitive to the direction of flow and help provide a low pressure drop for effectively increasing efficiency of the evaporator.
摘要翻译：多管蒸发器，其具有通过端部交叉通道互连的细长侧通道的管。该管在侧通道中具有长方形的内部凸起，其与交叉通道中的正常和部分球形的凸起具有低角度，使得穿过管的空气和通过管的制冷剂之间的热传递通过管的壁和制冷剂的边界层沿着管的内壁移动，并且在边界层和流过其中的制冷剂的主流之间强制对流热能。侧通道中的低角度凸块提供制冷剂的最小量的阻力，同时有效地减小其边界层的厚度以降低其岛状效应。交叉中的球形凸块对流动方向不敏感，有助于提供低压降，有效提高蒸发器的效率。

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