两种阴离子对析晶污垢沉积的影响

doi:10.11949/j.issn.0438-1157.20150043

化工学报 ›› 2015, Vol. 66 ›› Issue (6): 2268-2273.DOI: 10.11949/j.issn.0438-1157.20150043

两种阴离子对析晶污垢沉积的影响

徐志明¹, 张一龙², 王景涛¹, 刘坐东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. 东北电力大学自动化工程学院, 吉林省吉林市 132012

收稿日期:2015-01-12 修回日期:2015-03-04 出版日期:2015-06-05 发布日期:2015-03-25
通讯作者: 徐志明
基金资助:
国家自然科学基金项目(51476025)。

Effect of two kinds of anions on crystallization fouling deposition

XU Zhiming¹, ZHANG Yilong², WANG Jingtao¹, LIU Zuodong¹

1. College of Energy and Power Engineering, Northeast Dianli University, Jilin 132012, Jilin, China;
2. School of Automation Engineering, Northeast Dianli University, Jilin 132012, Jilin China

Received:2015-01-12 Revised:2015-03-04 Online:2015-06-05 Published:2015-03-25
Supported by:
supported by the National Natural Science Foundation of China (51476025).

摘要/Abstract

摘要：

为研究循环水中离子对析晶污垢沉积特性的影响, 实验研究了循环水中不同阴离子对换热管内污垢特性的影响。考察了工质流速、入口温度、工质浓度以及溶液内阴离子浓度对污垢沉积的影响。结果表明含有硝酸根离子循环水的污垢热阻高于氯离子的污垢热阻, 并且两种循环水形成污垢热阻的差距随入口温度、管内流速和CaSO₄浓度发生变化。伴随阴离子浓度升高, 污垢热阻渐近值逐渐变大。硝酸根对热阻提升的影响大于氯离子对热阻的影响。

关键词: 污垢热阻, 结垢, 结晶, 阴离子, 沉积物

Abstract:

For researching the anion affection to the fouling deposition characteristics, the experiment chooses two kinds of anion that has effect on the fouling deposition in the tube. The main velocity, inlet temperature, CaSO₄ concentration and anion concentration affection are investigated. It is found that the fouling resistance of nitrate circulating water is higher than that of the chloridion circulating water. The difference value of fouling resistance between two anions is varied with the main velocity, inlet temperature and CaSO₄ concentration. The fouling resistance becomes higher with increasing anion concentration. The influence of nitrate on the rise in the fouling resistance is better than chloridion.

Key words: fouling resistance, fouling, crystallization, anion, deposition

中图分类号:

TK124

徐志明, 张一龙, 王景涛, 刘坐东. 两种阴离子对析晶污垢沉积的影响[J]. 化工学报, 2015, 66(6): 2268-2273.

XU Zhiming, ZHANG Yilong, WANG Jingtao, LIU Zuodong. Effect of two kinds of anions on crystallization fouling deposition[J]. CIESC Journal, 2015, 66(6): 2268-2273.

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两种阴离子对析晶污垢沉积的影响

Effect of two kinds of anions on crystallization fouling deposition

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