脉冲电弧液电放电压力波特性实验研究  

Experimental Research on Pressure Waves of Pulse Arc Electrohydraulic Discharge

作　　者：朱璐[1] 黄倩[2] 许宇航[1] 林其雄[1] 刘壮[1] 何正浩[1] 

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,武汉430074 [2]南昌工程学院机械与电气工程学院,南昌330099

出　　处：《高电压技术》2015年第10期3518-3522,共5页High Voltage Engineering

基　　金：中加国际合作项目(2009DFA92810)~~

摘　　要：脉冲电弧液电放电是一种利用高电压、大电流放电产生液电空化效应并形成高强度冲击压力波的脉冲等离子技术。针对其传播特性、脉冲放电能量转化为冲击压力波的效率,结合在污水厂U型初级处理池中的不同位置进行脉冲电弧液电放电试验,利用压力波传感器检测不同放电参数下压力波信号,分析研究了峰值电压和放电能量对冲击压力波的影响特性。结果表明,随着放电电压和放电能量的增加,冲击压力波的峰值迅速增加。压力波的传播受气泡扰动和流体粘力的影响,其强度随着传播距离的增大而衰减,并且沿着水流方向的衰减程度要远小于垂直于水流方向。The technology of pulse arc electrohydraulic discharge （PAED） is a kind of pulse plasma discharge which can generate fluid cavitation effect and high intensity pressure shock wave under the effects of high voltage and high current. Combining the propagation characteristics of the pressure shock wave and the pulse energy conversion efficiency, we ex- perimentally studied pulse arc electrohydraulic discharge in different positions of U primary processing pool in sewage plant. The pressure wave signal of different discharge parameters were detected by pressure sensor. The peak voltage and discharge energy could affect the pressure shock wave. Experimental results show that, with the increase of discharge voltage and discharge energy, the peak value of pressure wave will increase rapidly. Under the influences of bubble dis- turbance and fluid viscous force, the intensity of pressure wave will attenuate with the increase of propagation distance. And the degree of attenuation along the flow direction is far lower than that perpendicular to the flow direction.

关 键 词：脉冲电弧液电放电 液电效应 水处理 压力波 能量效率 衰减因素 

分 类 号：TM83[电气工程—高电压与绝缘技术]