[1]王永庆,王芳芳,古新,等.缠绕螺纹管螺旋折流板换热器流动与传热数值分析[J].郑州大学学报(工学版),2019,40(04):16.
 Analysis of shell side heat transfer mechanism under coupling spiral action[J].Journal of Zhengzhou University (Engineering Science),2019,40(04):16.
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缠绕螺纹管螺旋折流板换热器流动与传热数值分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
40
期数:
2019年04期
页码:
16
栏目:
出版日期:
2019-07-10

文章信息/Info

Title:
Analysis of shell side heat transfer mechanism under coupling spiral action
作者:
王永庆王芳芳古新王丹熊晓朝
文献标志码:
A
摘要:
缠绕螺纹管螺旋折流板换热器中换热管是将外螺纹管与光管螺旋折流板相结合的新型结枃.采用CFD分析软件 FLUEN『借助数值模拟方法,对缠绕螺纹管螺旋折流板换热器壳程传热机理进行分析,并与光管螺旋折流板换热器壳程特性进行对比.结果表明,折流板螺旋角为10°、15°、20°,壳程Re在2000~6000条件下,缠绕螺纹管螺旋折流板换热器较光管螺旋折流板换热器综合性能提升4.5%14.5%,传热系瑴提升4.27%~23.39%,温度场和压力场协同均较优

Abstract:
A new type of coupling spiral baffles heat exchangers is presented coupling the ideal spiral baffle with external thread tube in the shellside. With the CFD code FLUENT, Analysing the shell side heat transfer mechanism under coupling screw action, and compared with that of ideal helical baffle heat exchanger. The mechanism of heat transfer enhancement in shellside was analyzed. It is shown that the comprehensive performance of shellside in coupling spiral baffle heat exchanger increases by 4.5%~14.5% than that of ideal helical baffle heat exchanger, when the helical angle are 10°, 15° and 20° ,and shell side Reynolds number ranges 2000 to 6000. When the helical angle is 10° and Reynolds number is 4000, the heat transfer coefficient, comprehensive performance, temperature field and pressure field in shellside of coupling spiral heat exchanger are all better than that of the ideal spiral baffle heat exchanger. The study and results provide references for the improvement of heat transfer of helical baffles heat exchanger
更新日期/Last Update: 2019-07-29