Research on enhanced performance of electrochemical water softening system by multi-meshes coupled cathodes

doi:10.11894/iwt.2019-0051

Industrial Water Treatment ›› 2020, Vol. 40 ›› Issue (2): 67-70. doi: 10.11894/iwt.2019-0051

• RESEARCH AND EXPERIMENT • Previous Articles Next Articles

Research on enhanced performance of electrochemical water softening system by multi-meshes coupled cathodes

Jinxin Luan¹,Xinhao Li¹,Lida Wang¹,Wen Sun¹,Yaowei Wang²,Yingzheng Zhou³,Haitao Deng³,Shuai Chen³,Shaohui He³,Guichang Liu^1,*()

1. Department of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
2. Shandong Chambroad Petrochemical Co., Ltd., Binzhou 256500, China
3. Yellow River Delta Chambroad Chemical Industry Research Institute Co., Ltd., Binzhou 256500, China

Received:2019-11-27 Online:2020-02-20 Published:2020-02-22
Contact: Guichang Liu E-mail:gchliu@dlut.edu.cn

复合网状阴极增强电化学水软化系统性能研究

栾谨鑫¹,李鑫浩¹,王立达¹,孙文¹,王耀伟²,周英正³,邓海涛³,陈帅³,何少辉³,刘贵昌^1,*()

1. 大连理工大学化学工程系, 辽宁大连 116024
2. 山东京博石油化工有限公司, 山东滨州 256500
3. 黄河三角洲京博化工研究院有限公司, 山东滨州 256500

通讯作者: 刘贵昌 E-mail:gchliu@dlut.edu.cn
作者简介:栾谨鑫(1991-),硕士研究生

Abstract

Abstract:

The application of electrochemical water softening technology was limited in industrial circulating cooling water systems, due to its low descaling rate. The multi-meshes with different apertures coupled cathodes were used to enhance the performance of the electrochemical water softening system. Experimental results showed that the highest descaling rate of the electrochemical water softening system reached 29.16 g/(m²·h), and the energy consumption was down to 6.0 kW·h/kgCaCO₃. The improvement of the system performance is attributed to the special structure of the cathode. The chemical reaction(alkalinity generation and scale deposition) can be located in different regions of the cathode, thus increasing the scale removal rate.

Key words: cathode, electrochemical water softening, circulating cooling water

摘要：

针对工业循环冷却水系统中低除垢速率限制电化学水软化技术应用的问题，采用多层不同孔径金属丝网耦合的复合网状阴极增强电化学水软化系统性能。结果表明：采用复合阴极的水软化系统除垢速率高达29.16g/（m²·h），能量消耗低至6.0 kW·h/kgCaCO₃。系统性能的提升归因于阴极特殊的结构，该结构可将化学反应（碱度产生和水垢沉积）分离和定位到复合网状阴极的不同区域，从而提高了除垢速率。

关键词: 阴极, 电化学水软化, 循环冷却水

CLC Number:

O646.54

Jinxin Luan,Xinhao Li,Lida Wang,Wen Sun,Yaowei Wang,Yingzheng Zhou,Haitao Deng,Shuai Chen,Shaohui He,Guichang Liu. Research on enhanced performance of electrochemical water softening system by multi-meshes coupled cathodes[J]. Industrial Water Treatment, 2020, 40(2): 67-70.

栾谨鑫,李鑫浩,王立达,孙文,王耀伟,周英正,邓海涛,陈帅,何少辉,刘贵昌. 复合网状阴极增强电化学水软化系统性能研究[J]. 工业水处理, 2020, 40(2): 67-70.

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Figures/Tables 6

References 9

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硬度/ (mg·L^-1)	电流密度/ (A·m^-2)	除垢速率/ (g·m^-2·h^-1)	能量消耗/ (kW·h·kgCaCO₃^-1	参考文献
305	10.9	2.5 ~ 5.0	8-16	〔5〕
295	22	3.2 ~ 5.5	-20	〔5〕
254	~30	2.5	21	〔5〕
250	20	2.6	20	〔6〕
240	~20	3.4 ~ 6.9	-25	〔7〕
350	20	8-15.09	3.6	〔8〕
1 180	108	22.8	16	〔6〕
300	100	10	118	〔9〕
350	100	25.5-34.3	17.6-22.3	〔8〕
350	18.3	25.9-29.16	3.25-6	本系统

硬度/ (mg·L^-1)	电流密度/ (A·m^-2)	除垢速率/ (g·m^-2·h^-1)	能量消耗/ (kW·h·kgCaCO₃^-1	参考文献
305	10.9	2.5 ~ 5.0	8-16	〔5〕
295	22	3.2 ~ 5.5	-20	〔5〕
254	~30	2.5	21	〔5〕
250	20	2.6	20	〔6〕
240	~20	3.4 ~ 6.9	-25	〔7〕
350	20	8-15.09	3.6	〔8〕
1 180	108	22.8	16	〔6〕
300	100	10	118	〔9〕
350	100	25.5-34.3	17.6-22.3	〔8〕
350	18.3	25.9-29.16	3.25-6	本系统

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