制冷学报2018，Vol.39Issue(1)：108-114,7.DOI:10.3969/j.issn.0253-4339.2018.01.108
高频与感应式电子除垢仪除垢特性对比
Comparison of Descaling Characteristics between High-frequency and Induction-type Electronic Descaling Devices
摘要
Abstract
Under actual operating conditions,a closed cooling tower was simulated and the descaling characteristics of an induction-type electronic descaling device and a high-frequency electronic descaling device on the spray water side of an evaporative cooler was investigated experimentally.The results show that both kinds of electronic descaling instruments can accelerate the dissolution of dirt and reduce fouling resistance on the outside of the heat transfer tubes,but the effects are different.During the 150 h of the experiment,the greatest decline in the fouling resistance using the high-frequency and induction-type electronic descaling devices was 17.81％ and 20.35％,respectively.With the induction-type electronic descaling device,the fouling resistance reduced several times.The results of scanning electron microscopy show that the structure of dirt crystals is rod-like under the action of the high-frequency electronic descaling device,but exhibits a block structure with the induction-type electronic descaling device.The results of independent experiments show that the two electronic descaling instruments can effectively reduce the hardness of circulating water.After a 12 h experiment,the circulating water hardness was observed to decrease by 40.35％ and 37.04％,respectively.关键词
电子除垢/蒸发冷设备/喷淋水系统/污垢热阻Key words
electronic descaling/evaporative cooling equipment/spray water system/fouling resistance分类
通用工业技术引用本文复制引用
章立新,李鑫,高明,马麟,赵圣仙..高频与感应式电子除垢仪除垢特性对比[J].制冷学报,2018,39(1):108-114,7.基金项目
国家自然科学青年基金(51506127)资助项目.(The project was supported by the National Natural Science Foundation of China(No.51506127).) （51506127）
