壳程流体纵向冲刷型高效气-气管壳式换热器的传热与流阻性能的研究

• 作 者: 邓先和 罗运禄 邓颂九
• 机 构: 华南理工大学化工研究所,华南理工大学化工研究所,华南理工大学化工研究所 广州,广州,广州
• 出 处: 化工学报
• 发表日期: 1991年02期
• 关键词: 管壳式换热器 壳程 流阻 传热面积 气体流量 光滑管 压降 传热介质 性能比 折流

本文以缩放管和螺旋槽管为强化传热管,以空气为传热介质,研究了在换热器壳程中以气体纵向冲刷为结构特征的气-气管壳式换热器的传热与流阻性能,并与弓形隔板管壳式气-气换热器在相同传热温差与传热负荷,相同气体流量与气体压降的条件下做了传热性能的比较,结果表明,缩放管气-气管壳式换热器的总传热系数要比弓形隔板管壳式气-气换热器高64.8%,可节省40%的传热面积.

In this paper, the heat transfer tube with a scaled tube and a spiral fluted tube as the heat transfer tube and the air as the heat transfer medium are used to study the heat transfer and the heat transfer of the gas-to-gas shell and tube heat exchanger with the longitudinal scouring of gas in the shell side of the heat exchanger Flow resistance and the heat transfer performance of the segmental shell-and-tube gas-to-air heat exchanger under the same heat transfer temperature difference and heat transfer load, the same gas flow and gas pressure drop. The results show that the scaling The total heat transfer coefficient of the tube-gas-to-tube heat exchanger is 64.8% higher than that of the baffled tube-to-tube gas-gas heat exchanger, which can save 40% of the heat transfer area.