一种适用于绕管式换热器的新管型
缠绕管式换热器具备结构紧凑、传热面积大、换热效率高、抗振动能力强等优点，因而广泛应用于加氢裂化、连续重整、天然气液化等领域。依据前人研究，通过对基础椭圆管进行开槽及扭曲加工，建立了不同类型开槽管，与光滑圆管对比模拟结果，最终提出了一种适用于缠绕管式换热器的新管型－扭曲椭圆花瓣管，得到新型换热管努赛尔数Nu相较光滑圆管平均提升了24.88%， 阻力系数f提升了9.4% ～ 10.7%， 综合评价因子PEC提升了12.44% ～ 24.66%，为新型缠绕管式换热器的设计提供了参考。
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