自支撑型扭曲管中冷器强化传热特性研究  

Research of heat transfer enhancement in self-support twisted tube intercooler

作　　者：于腾祥[1] 李霞[1] 孙赫[1] 朱冬生[1] 曾力丁[1] 安冬旭[1] 

机构地区：[1]华东理工大学机械与动力工程学院承压系统与安全教育部重点实验室,上海200237

出　　处：《化学工程》2013年第5期24-28,共5页Chemical Engineering(China)

基　　金：教育部交叉学科与重大项目培育基金(2010JB0621)

摘　　要：对自支撑型扭曲管中冷器壳程传热与压降性能进行了实验研究,结合实验室先前扭曲管单管实验的数据,通过与相同工况条件下的折流板中冷器和折流杆中冷器管、壳程传热与压降性能以及综合性能的对比,分析自支撑型扭曲管中冷器的强化传热特性。研究结果表明:在测量范围内,自支撑型扭曲管中冷器管程传热性能相比其他2种中冷器平均提高21.3%;壳程传热性能相比折流杆中冷器,平均提高20.6%;壳程压降相比折流杆中冷器,平均降低89.4%,相比折流板中冷器,平均降低93.9%。与传统中冷器相比,自支撑型扭曲管中冷器既有折流板中冷器传热效率高的优点,又有折流杆中冷器压降损失小的优点,在工业领域中,有很好的应用前景。The experimental research of the heat transfer and pressure drop properties in shell-side over self- support twisted tube intercooler was conducted. The data of single twisted tube come from the previous experiment. The heat transfer and pressure drop properties in both tube-side and shell-side and the comprehensive performance for segmental baffle intercooler and rod baffle intercooler were compared in the same condition, and the heat transfer enhancement in self-support twisted tube intereooler was analyzed. The result shows that within the measurement range, compared with the other two kinds of intercooler, the heat transfer property of tube-side in self-supporting twisted tube intercooler has an average increase of 21.3% ; compared with rod baffle intercooler, the heat transfer property of shell-side has an average increase of 20.6%; compared with rod baffle intercooler, the pressure drop property of shell-side is reduced by an average of 89.4% ; compared with segmental baffle intercooler, the pressure drop property is reduced by an average of 93.9%. The self-support intercooler has the advantages of segmental baffle intercooler and rod baffle intercooler. Featured by high heat transfer coefficient and low pressure drop, the self-support twisted tube intercooler has a good prospect in the industry.

关 键 词：自支撑 扭曲管 中冷器 传热 压降 综合性能 

分 类 号：TQ051.5[化学工程]