油冷器广泛应用于各类化工过程及机械加工过程中.通过实验研究了不同结构参数的螺旋折流板冠形翅片管油冷器,获得了油冷器的传热与阻力性能曲线.结果表明,此类油冷器的壳侧传热膜系数可达1 100~1 300 W/(m2.K),比弓形折流板光滑管油冷器提高了1倍,而压降降低30%~50%;传热管的翅片间距和翅片高度必须在合理的范围内,两者均在1.0~1.2 mm时才能保持较佳的油冷器性能。 Oil cooler is widely used in all kinds of chemical processes and machining processes.Through experimental study of different structural parameters of spiral baffle crown finned tube oil cooler, get the oil cooler heat transfer and resistance performance curve. The results show that the coefficient of shell side heat transfer coefficient of this kind of oil cooler can reach 1 100 ~ 1 300 W / (m2.K), which is double that of the arched baffle smooth tube oil cooler and the pressure drop is reduced by 30 % ~ 50%. The fins spacing and fin height of the heat transfer tubes must be within a reasonable range, both of which can maintain the better performance of the oil cooler when the temperature is between 1.0 and 1.2 mm.