脉动流下热交换圆管抑垢实验研究  

Experimental Research on Anti-fouling of Heat Exchange Tube under Pulsating Flow

作　　者：郑小涛[1] 徐成[1] 喻九阳[1] 刘利军[1] 林纬[1] 

机构地区：[1]武汉工程大学机电工程学院,湖北武汉430073

出　　处：《石油化工设备》2013年第2期1-4,共4页Petro-Chemical Equipment

基　　金：国家自然科学基金项目(No.50976080);武汉工程大学科学研究基金项目(No.14125061);武汉工程大学研究生创新基金(No.CX201127)

摘　　要：建立污垢测试实验系统,采用污垢热阻法研究了脉动流和稳态流下光管内的污垢生长特性。实验结果表明,随着脉动流频率增加,污垢生长的诱导期延长,污垢生长速率减慢。当脉动流频率为2.0Hz时,污垢的渐进热阻值较稳态流时减小25%,具有明显的阻垢效果。A mean of experimental system was set up to test fouling, and use fouling resistance method compared pulsating flow with steady-state flow to research the fouling growth characteristics in pipe. The results showed that with increased frequency of pulse flow, the induce period became longer and the deposition growth rate slowed down. Fouling resistance decreased by 25 percent compared with that of the steady-state when the frequency of pulsating flow was 2 Hz and has obvious effect of restrain fouling.

关 键 词：脉动流 污垢 热交换器 污垢热阻法 

分 类 号：TE965.03[石油与天然气工程—石油机械设备] TQ050.2[化学工程]