全文下载: 202103016.pdf
文章编号: 1672-6987(2021)03-0101-06; DOI: 10.16351/j.1672-6987.2021.03.016
韩向阳, 于航, 李洪松, 刘炳成*(青岛科技大学 机电工程学院,山东 青岛 266061)
摘要: 通过溶液电导率、pH和碳酸钙粒径的变化来研究频率对扫频电磁场阻垢效果的影响。模拟工业循环水的硬度为1 mmol·L-1,搭建了动态实验平台并进行了4组实验:3组经不同扫频频率电磁场处理,1组未经电磁场处理作为对照组,3种不同频率的电磁场分别为1~3 kHz,9~11 kHz,19~21 kHz;实验结果表明,电磁阻垢技术可有效降低溶液中的电导率和pH值,增大溶液中CaCO3平均粒径。当扫频电磁场频率为1~3 kHz时,电导率和pH值下降得最快,且下降幅度最大,平均粒径最大,故当频率为1~3 kHz时阻垢效果最好。
关键词: 电磁阻垢; 扫频电磁场; 电导率; pH
中图分类号: X 703文献标志码: A
引用格式: 韩向阳, 于航, 李洪松, 等. 频率对扫频电磁场阻垢效果影响的实验研究[J]. 青岛科技大学学报(自然科学版), 2021, 42(3): 101-106.
HAN Xiangyang, YU Hang, LI Hongsong, et al. Experimental research on the influence of frequency on the scale inhibition effect of sweep frequency electromagnetic field[J]. Journal of Qingdao University of Science and Technology(Natural Science Edition), 2021, 42(3): 101-106.
Experimental Research on the Influence of Frequency on the Scale
Inhibition Effect of Sweep Frequency Electromagnetic Field
HAN Xiangyang, YU Hang, LI Hongsong, LIU Bingcheng
(College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China)
Abstract: In this paper, the effect of power output frequency on the scale inhibition was studied through the change of the solution conductivity, pH and calcium carbonate particle size. The hardness of the industrial circulating water was set as 1 mmol·L-1. We built a dynamic experiment platform and conducted four sets of experiments: Three groups with different sweep frequency under electromagnetic field treatment, which were 1—3 kHz, 9—11 kHz, 19—21 kHz, separately, and a group without electromagnetic field treatment as a control group. The experiment results showed that the electromagnetic scale inhibition technology can effectively reduce the conductivity and pH value and increase the average particle size of CaCO3 in the solution.When the power output frequency was 1—3 kHz, the solution conductivity and pH dropped the fastest, so we chose 1—3 kHz as the best power output frequency.
Key words: electromagnetic scale inhibition; frequency-swept electromagnetic field; conductivity; pH
收稿日期: 2020-06-08
基金项目: 国家重点研发计划子课题项目(2017YFB0603303-4).
作者简介: 韩向阳(1996—),男,硕士研究生.*通信联系人.