| 两种喷雾荷电方法的机理与试验研究 |
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| 引用本文： | 周文俊,刘开培. 两种喷雾荷电方法的机理与试验研究[J]. 华中科技大学学报(自然科学版), 1993, 0(2) |
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| 作者姓名： | 周文俊 刘开培 |
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| 作者单位： | 武汉水利电力大学(周文俊)，武汉水利电力大学(刘开培) |
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| 摘 要： | 研究压力喷雾荷电中两种主要荷电方法——在喷头上施加电压的直接荷电法和在喷头附近安置电晕电极的电晕荷电法的荷电机理;探讨荷电电压、雾化水压和雾化液体电导率等因素对雾滴荷质比的影响;建立了雾滴荷质比的经验公式.由试验结果和理论分析得到直接荷电法的机理是尖端效应,电晕荷电法的机理为碰撞荷电.将这两种荷电方法与感应荷电法进行了比较,指出了这三种荷电方法在消烟除尘中应用时的适用条件.
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| 关 键 词： | 荷质比 喷雾荷电 直接荷电 电晕荷电 感应荷电 |
The Mechanism and Experimental Study of Two Spray Charging Techniques |
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| Zhou Wenjun Liu Kaipei. The Mechanism and Experimental Study of Two Spray Charging Techniques[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1993, 0(2) |
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| Authors: | Zhou Wenjun Liu Kaipei |
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| Affiliation: | Zhou Wenjun Liu Kaipei |
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| Abstract: | The mechanism of pressure spraying droplets charged by applying high voltage to a nozzle directly or by a corona electrode discharging to the nozzle in spray charging is studied. The influences of the charged voltage, spraying water pressure and electrical conductivity of the droplets on the charge-to-mass ratio (CMR) of the drops are also investigated. Empirical formula for CMR are proposed after a large number of tests. Experimental results and theoretical work show that the mechanisms of the direct charging and the corona charging are respectively the tip effect and collision effect. Conditions under which the two charging methods and the method by induction can be used for precipitation are given. |
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| Keywords: | charge-to-mass ratio spray charging direct charging corona charging induc- tion charging |
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