摘要
通过对过盈量的分析,设计与φ7mm内螺纹铜管配合的几种翅片孔直径的换热器,分析对比换热器的穿管阻力、U形管报废率、穿管效率以及换热能力,发现在翅片孔直径为7.27 mm时,以上4项参数能够达到最佳配合。并对胀后铜管受力变形、铜管外径、齿形变化及翅片间距分布进行分析。
Through the analysis on the magnitude of interference ,the heat exchangers with several different fin‐hole diameters suited to φ7 mm inner grooved copper tube are designed .Through the analysis and comparison of the heat exchanger’s tube‐inserting resistance ,U‐tube scrap rate ,tube‐inserting efficiency and heat transfer capability ,it’ s found that w hen the fin-hole diameter is 7 .27 mm ,above four items can achieve the best fit .In addition ,the force deformation of the copper tube ,the diameter of the copper tube ,the change of the tooth profile and the distribution of the fin spacing for the expanded copper tube are analyzed .
出处
《制冷与空调》
2016年第9期45-48,共4页
Refrigeration and Air-Conditioning
关键词
管翅式换热器
过盈量
翅片孔直径
穿管效率
换热能力
finned-tube heat exchanger
magnitude of interference
fin-hole diameter
tube-inserting efficiency
heat transfer capability
