帘式折流片换热器壳程热力特性的数值研究  

Numerical research on thermodynamic characteristics in shell-side of shell-and-tube heat exchanger with shutter baffles

作　　者：马璐[1] 王珂[1] 王永庆[1] 刘敏珊[1] 

机构地区：[1]郑州大学河南省过程传热与节能重点实验室,河南郑州450002

出　　处：《化学工程》2016年第12期26-30,共5页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(51476147);河南省基础与前沿计划项目(142300410066)

摘　　要：以帘式折流片组成的管束支撑结构为基础,针对正弦型和三角型2种异型帘式折流片结构,分别分析在其支撑下壳程流体相应的传热系数和压降,并将结果与普通型帘式折流片进行对比,并利用场协同理论进一步分析了不同帘式折流片结构对换热器壳程速度场和温度场的强化作用。结果表明:正弦型和三角型帘式折流片式换热器壳程流体的换热系数和压降均高于普通型帘式折流片换热器;正弦型帘式折流片能够有效地增强速度场和温度场的协同性。For the sinusoidal type and triangular type shutter baffle proposed based on the structure support made up of shutter baffles, the heat transfer coefficient and pressure drops in the shell-side with these two anomalous shape shutter baffles were researched, which were compared with that of the heat exchanger with regular type shutter baffle in the shell-side; and the field synergy principle was also employed to analyze the reinforcement of temperature field and velocity field in the shell-side. The results show that the heat transfer in shell-side with anomalous shape shutter baffles are better than that in shell-side with regular type shutter baffle. The coordination of temperature field with velocity field in the shell-side was enhanced in the shell-side with sinusoidal type shutter baffle.

关 键 词：管壳式换热器 斜向流 帘式折流片 场协同 

分 类 号：TK172[动力工程及工程热物理—热能工程]