用导热油和蒸馏水配制成W/O乳状液，在高压高频脉冲电场下通过显微实验考察了含水率、乳化强度、温度等操作参数对高压高频脉冲电聚结和水滴迁移聚并的影响。结果表明，含水率低时，水滴碰撞几率和偶极聚结力的实验结果与理论分析结果相符，含水率高时脱水效果下降；乳化强度越强，水滴碰撞速率越大，偶极聚结力越小，乳化强度适中，电聚结效果越好；操作温度越高，布朗运动越强，连续相粘度越小，液膜排液阻力减小，对水滴聚结越有利。

The electrocoalescence technology has been applied widely in refineries to separate water-in-oil emulsion because of the high efficiency, fast and large throughput. Despite there are many successful and promising industrial applications, the design for more efficient and stable elereocoalescence is essential. High-voltage and high-frequency electrocoalescence need to be designed to avoid short circuit caused by the bridge of the chain between electrodes. Although high-voltage and high-frequency electrocoalescence have been proposed many years ago, it is not applied widely in refineries. In order to investigate the influence of operating parameters on coalescence and migration of water droplets in high frequency pulsed electrocoalescence process, the effects of water content, emulsifying strength and temperature for the electrocoalescence of the water drops in W/O emulsions formed by conducting oil and water under high frequency pulsed electric field were studied through microscopy experiment in this work. The results showed that the theoretical analysis on collision rate and dipole attraction corresponded with the experiment when the water content was low. When the water content was high, the dehydration became worse because of the formation of long water chain. As emulsifying strength rose, the collision rate increased and the dipole attraction decreased. Temperature-induced emulsifying strength minimization was most suitable for electroalescence. As the temperature rose, the Brown movement strengthened and the continuous phase viscosity and the resistance of film drainage decreased. These all enhanced the electrocoalescence.