导流片结构对物流分配性能影响的实验研究  

Experimental Study of the Impact of Deflector Plate Configuration on the Performance of Material Flow Distribution

作　　者：张哲[1] 厉彦忠[1] 许箐[1] 

机构地区：[1]西安交通大学能动学院,陕西西安710049

出　　处：《热能动力工程》2003年第6期612-614,638,共4页Journal of Engineering for Thermal Energy and Power

基　　金：西安交通大学博士学位论文基金资助项目 (DFXJTU2 0 0 2 -12 ) ;全国首届优秀博士学位论文作者专项基金资助项目 (19993 3 )

摘　　要：通过板翅式换热器物流分配问题的实验研究发现 ,不合理的导流片结构造成板翅式换热器内部物流分配极不均匀 ,以及在横向与纵向上物流分配不均匀的程度也不相同。同时提出了具有补液腔的新型导流片结构 ,并定义了新型导流片的结构参数。实验结果表明 ,采用新型的导流片可以有效的改进换热器内部物流分配不均匀的问题 ,同时还发现在实验的条件下结构参数为 0 .2的导流片具有最佳的导流性能 ,通过实验研究得到了不同导流片结构的物流分配不均匀特性与流体雷诺数之间的关系式。Through a study of the material flow distribution in a plate-fin heat exchanger it was found that an irrational deflector-plate configuration would lead to a very non-uniform material-flow distribution in the heat exchanger and also a different degree of non-uniformity of the flow distribution in the transverse and longitudinal directions. The authors have, for the first time, come up with an innovative deflector-plate construction, which incorporates a liquid replenishment cavity. The construction parameters of the above-mentioned plate are defined. The results of experimental studies indicate that the use of this innovative plate can effectively solve the problem of non-uniform distribution of internal material flow in the heat exchanger. Moreover, it is found that under the present experimental conditions the deflector plate with a construction parameter of 0.2 offers the optimum flow-guide performance. Through experimental investigations a relation has been identified, which exists between the material flow non-uniformity characteristics of different deflector-plate configurations and a fluid Reynolds number.

关 键 词：板翅式换热器 导流片 结构 物流分配性能 实验研究 

分 类 号：TK172[动力工程及工程热物理—热能工程]