摘要
回顾了几种典型的强化换热管元件即波纹管、横纹管、扭曲椭圆管及螺旋槽纹管的研究现状,发现与普通光管相比,这几种强化传热管不仅具有更高的换热能力,还具有较强的抗污垢性能,同时在强化管元件中放置内插物等扰流装置还能继续提高换热能力。基于这些强化传热管元件的较高换热能力在一定工况下才能实现,未来应开发新型的具有扰流、避免流动死区形成的传热管,以满足更广的适用范围或者能够实现更好的换热效果。
A review of several typical enhanced heat transfer tubes such as corrugated tube,transversally corrugated tube,twisted tube and spiral fluted tube,is carried out. Compared with smooth wall tube,these enhanced tubes have higher heat exchange capacity and better anti- fouling ability. Besides,the heat transfer efficiency can be promoted to a higher level if the objects that can disturb flow are put in the tubes. However,higher heat transfer efficiency of such enhanced heat transfer tubes can only be achieved under certain conditions. Therefore,new heat transfer tubes that could avoid the formation of mobile dead-zone should be designed to meet the broad applications or facilitate better heat transfer effect.
出处
《现代化工》
CAS
CSCD
北大核心
2017年第3期24-28,30,共6页
Modern Chemical Industry
关键词
换热管
强化传热
扰流装置
heat transfer tubes
heat transfer enhancement
swirl flow devices
