蒸发器中的沸腾换热与减压蒸发的过热度  

THE SUPER-HEAT DEGREE CONTROLLED OF BOILING HEAT EXCHANGE IN EBULLATOR AND VACUUM CONCENTRATOR

作　　者：张德翔[1,2] 郑晨升[1,2] 文怀兴 

机构地区：[1]贵州师范大学 [2]西北轻工业学院

出　　处：《陕西科技大学学报（自然科学版）》1997年第2期84-88,共5页Journal of Shaanxi University of Science & Technology

摘　　要：沸腾换热是料液在蒸发器内获得快速浓缩的主要热工过程．本文在分析了沸腾换热机理后指出沸腾换热强度取决于过热度，进而找出了多效减压蒸发装置中获得过热度存在的问题，提出了获得各效理想过热度的对策．Boiling heat exchange is main heat-transfer process when fluid quickly concentrated in the ebullator. Analyzed the mechanism of boiling heat exchange, this paper assigns that the intensity of boiling heat exchange is decided by super-heat degree, and then, finds out the existing problem of super-heat degree in multiple effect decompress ebullator. Final, the ways to deal with ideal super-heat degree are posed.

关 键 词：沸腾换热 过热度 抽气系统 蒸发器 

分 类 号：TB71[一般工业技术—真空技术]