插入扰流元件换热管强化换热效果分析

doi:10.3969/j.issn.0438-1157.2012.z2.011

化工学报 ›› 2012, Vol. 63 ›› Issue (S2): 58-63.DOI: 10.3969/j.issn.0438-1157.2012.z2.011

插入扰流元件换热管强化换热效果分析

姬长发, 慕红艳, 孙瑞科, 李丽霞

西安科技大学能源学院, 陕西西安 710054

收稿日期:2012-09-21 修回日期:2012-09-28 出版日期:2012-12-28 发布日期:2012-12-28
通讯作者: 姬长发
作者简介:姬长发(1963-),男,博士,教授。
基金资助:
陕西省自然科学基金项目(2006E130)。

JI Changfa, MU Hongyan, SUN Ruike, LI Lixia

College of Energy, Xi’an University of Science and Technology, Xi’an 710054, Shaanxi, China

Received:2012-09-21 Revised:2012-09-28 Online:2012-12-28 Published:2012-12-28
Supported by:
supported by the Natural Science Foundation of Shaanxi Province(2006E130).

摘要/Abstract

摘要： 设计了一种新型插入扰流元件管式换热器,并依据相关文献的模拟数据将其与波纹管、光管在不同流速下的管内壁面平均传热系数、换热量、平均Nusselt数以及摩擦阻力的变化特性进行了分析比较。结果表明:插入扰流元件换热管在强化换热能力的同时其压力损失也会很大,所以在实际应用过程中选取插入扰流元件换热管时一定要考虑其经济性;在泵功率消耗一定时,插入扰流元件换热管的热效率与波纹管的热效率很接近。但插入扰流元件换热管在制造工艺上具有加工方便、固定灵活等优点,比较适合对现有换热器的改造。所以,该种热管同样具有广泛的应用价值。

关键词: 换热器, 扰流元件, 强化换热

Abstract: Designed a new type of tube heat exchanger which insert spoiler components,and then at different velocity the pipe inner wall surface average heat transfer coefficient,heat transfer capacity,the average Nu and friction resistance variation characteristics of the new heat exchanger tube and corrugated tube,smooth tube are analyzed and compared.The results showed that the enhanced heat transfer capacity and the pressure loss of insert spoiler element heat transfer tube will be great,so its economy must be considered when choosing of heat exchange tube inserted by disturbance device in practical application.Under the same pump power consumption conditions,thermal efficiency for metal-wire inserts in heat exchanger tube and corrugated tube are very close.But for metal-wire inserts in heat exchanger tube the manufacturing process is convenient,flexible and more suitable for the existing heat exchanger transformation.Therefore,the heat exchange tube also has extensive application value.

Key words: heat exchanger, disturbance device, heat transfer enhancement

中图分类号:

姬长发, 慕红艳, 孙瑞科, 李丽霞. 插入扰流元件换热管强化换热效果分析[J]. 化工学报, 2012, 63(S2): 58-63.

JI Changfa, MU Hongyan, SUN Ruike, LI Lixia. null[J]. CIESC Journal, 2012, 63(S2): 58-63.

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插入扰流元件换热管强化换热效果分析

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