循环式多级超声波分散机的研制  

Development of Circulatory Multi-step Ultrasonic Dispersion Machine

作　　者：张云电[1] 吕丹华[1] 王奇芳[1] 胡皇印[1] 

机构地区：[1]杭州电子科技大学,杭州310018

出　　处：《中国机械工程》2007年第9期1104-1107,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50275043);浙江省自然科学基金资助项目(Z105528)

摘　　要：针对传统的分散技术存在着分散不均匀、效率低、成本高、分散系统不稳定等缺点,提出了循环式多级超声波分散的原理,在分析循环式多级超声波分散机结构和要求的基础上,研制了循环式多级超声波分散机,对压电换能器、变幅杆和分散工具头组成的声学系统进行了有限元分析。使用循环式多级超声波分散机进行了柴油掺水乳化、重油均质化等实验。结果表明,循环式多级超声波分散机结构合理、性能优良,达到了预定分散的效果。Traditional dispersion technology has many disadvantages such as heterogeneity, poor efficiency, high cost, unstable mixture etc. The circulatory multi-step ultrasonic dispersion technology was studied herein. Based on the structural demands, a circulatory multi-step ultrasonic dispersion machine was developed. Acoustic system composed with piezoelectricity transducer, acoustic horn and tool was analyzed by FEM software. Experiments had been carried out, for instance emulsification of diesel oil, homogenization of heavy oil. Its result indicates that the machine has right structure and excellent performance.

关 键 词：超声分散 循环式多级 压电换能器 有限元法 

分 类 号：TH122[机械工程—机械设计及理论]