松花江水质参数与换热管内污垢热阻的关联分析

doi:10.3969/j.issn.0438-1157.2014.12.013

化工学报 ›› 2014, Vol. 65 ›› Issue (12): 4742-4748.DOI: 10.3969/j.issn.0438-1157.2014.12.013

松花江水质参数与换热管内污垢热阻的关联分析

徐志明¹, 张一龙², 刘坐东², 张仲彬¹

1. 东北电力大学能源与动力工程学院, 吉林省吉林市 132012;
2. 华北电力大学能源与机械工程学院, 北京 102206

收稿日期:2014-05-06 修回日期:2014-06-21 出版日期:2014-12-05 发布日期:2014-12-05
通讯作者: 张一龙
基金资助:
国家自然科学基金项目(51076025).

Correlation analysis between Songhua River water quality and fouling resistance in heat exchanger tube

XU Zhiming¹, ZHANG Yilong², LIU Zuodong², ZHANG Zhongbin¹

1. Energy and Power Engineering Institute, Northeast Dianli University, Jilin 132012, Jilin, China;
2. School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China

Received:2014-05-06 Revised:2014-06-21 Online:2014-12-05 Published:2014-12-05
Supported by:
supported by the National Natural Science Foundation of China (51076025).

摘要/Abstract

摘要： 研究松花江水在换热过程中,主要水质参数对表面污垢热阻的影响程度,分别测定3种管型在换热过程中水质参数的变化情况,所选管型分别是光管、交叉缩放椭圆管和不连续双斜向内肋管,水质参数为pH、碱度、电导率、溶解氧、钙离子浓度和亚铁离子浓度.应用灰色关联方法,将水质数据和污垢热阻数据进行关联分析得出,两种强化管的水质参数关联顺序相同.其中的两种参数与污垢热阻呈现同向变化趋势,其余参数与污垢热阻呈现反向变化的趋势.强化换热管不但对水质参数的变化产生影响,而且对关联程度也有影响.

关键词: 结垢, 湍流, 水质参数, 灰色关联, 数值分析

Abstract: The influence of the Songhua River water quality on the fouling resistance in heat transfer process was studied. The water quality variation in the heat transfer was measured in three types of heat exchange tube, including a general circular tube and two enhanced tubes, alternating elliptical axis tube and discrete double inclined ribs tube. The measured water quality parameters are pH, alkalinity, conductivity, DO, Ca²⁺ and Fe²⁺ concentrations. The fouling resistance is correlated with the water quality parameters with the gray correlation method. The results show that the parameter correlation order is the same for the two enhanced tubes. The variation tendency of fouling resistance is the same as two of the water quality parameters and opposite of the other parameters. Compared with circular heat exchange tube, the enhanced heat exchange tube affects not only the water quality parameters, but also the parameter correlation.

Key words: fouling, turbulent flow, water quality parameters, gray correlation, numerical analysis

中图分类号:

TK124

徐志明, 张一龙, 刘坐东, 张仲彬. 松花江水质参数与换热管内污垢热阻的关联分析[J]. 化工学报, 2014, 65(12): 4742-4748.

XU Zhiming, ZHANG Yilong, LIU Zuodong, ZHANG Zhongbin. Correlation analysis between Songhua River water quality and fouling resistance in heat exchanger tube[J]. CIESC Journal, 2014, 65(12): 4742-4748.

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松花江水质参数与换热管内污垢热阻的关联分析

Correlation analysis between Songhua River water quality and fouling resistance in heat exchanger tube

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