多股流换热器的通道分配设计方法  

Passage arrangement and parameter match in multi-stream heat exchanger

作　　者：李淑英 王忠建 张扬[1] 

机构地区：[1]开封空分集团有限公司,河南省开封市公园路28号475002 [2]西安交通大学能源与动力工程学院,陕西省西安市咸宁西路28号710049

出　　处：《深冷技术》2011年第5期37-40,共4页

摘　　要：介绍多股流换热器的传热计算数学模型,并在程序中实现了换热器的设计计算。在分析前人研究成果的基础上,提出了通道分配与排布的原则和相应的设计计算方法。叙述了换热器横向导热控制的新思路,利用通道排布的周期性改善隔板温度的分布,再采用手段控制隔板温度的波动幅值,在一定程度下可以趋近等壁温的效果,可以有效减少横向导热。设计了用于实验的换热器试件并验证了其设计的合理性。This paper introduces a mathematical model of heat transfer computing in multi-stream heat exchanger,and achieves the design calculation through program.Based on the analysis and comparison of results of previous researches,a principle of passage arrangement and the corresponding calculation method is proposed in this paper.A new idea to control the transverse conduction is provided.The periodic passage arrangement improves the temperature profile of separating plates.By taking means to control the amplitude of temperature fluctuation of separating plate,to a certain extent,the temperature profile of separating plates can be close to the constant surface temperature condition and can reduce the transverse heat conduction effectively.A heat exchanger is designed for the experiment,and proved to be rational through professional software.

关 键 词：板翅式换热器 多股流 通道分配 

分 类 号：TB657.5[一般工业技术—制冷工程]