风冷机组翅片盘管换热器设计参数相关性分析  

Analysis of Design Parameter Relationship for Fin and Tube Heat Exchanger of Air Cooled Chiller

作　　者：王磊 WANG Lei(Ingersoll Rand Engineering and Technology Center-Asia Pacific,Shanghai,200051,China)

机构地区：[1]英格索兰亚太工程技术中心,上海200051

出　　处：《制冷技术》2018年第2期56-60,共5页Chinese Journal of Refrigeration Technology

摘　　要：本文通过对翅片盘管换热器的主要设计参数如管排数、翅片密度和管排高度,以及与风机和机组结构的相关性分析,指出了这些参数对流动及换热的相关影响,应采用综合考虑的设计方法来进行换热器的设计;并定量地给出了对于某一常规机型的设计参数的关系以及变化值范围,用于实际设计工作的参考指导。对于100冷吨的制冷机组,为了达到同样的换热量,不同盘管排数下所需要的换热面积差别超过10%,翅片密度的影响在±5%。在不同的盘管高度上,盘管上下的空气流速变化可达到100%。The key design parameters of coil rows, fin density and coil height of fin and tube heat exchanger, and related fan and structure impact are studied. It identifies the influence of these parameters on fluid and heat transfer, and demonstrates that system approach need be considered in heat exchange design. As an reference to the actual design work, a certain range of the variable has been given to a typical tonnage unit design. For a 100 Ton chiller, to achieve the similar amount heat transfer quantity, the difference of heat transfer area will exceed 10% for different coil rows; The influence of fin density is within ±5%. The top and the bottom air velocity along the coil height could vary up to 100%.

关 键 词：翅片盘管 盘管排数 翅片密度 盘管高度 

分 类 号：TB657.5[一般工业技术—制冷工程]