文献类型：期刊文献

中文题名：非对称坡面腔底无阀压电泵

英文题名：Valve-less piezoelectric pump with unsymmetrical slope chamber bottom

作者：夏齐霄[1];张建辉[2];李洪[2]

第一作者：夏齐霄

通讯作者：Xia, Q.-X.

机构：[1]北京联合大学机电学院;[2]北京工业大学机械工程与应用电子学院

第一机构：北京联合大学机器人学院

通讯机构：[1]College of Mechanical and Electronic Engineering, Beijing Union University, Beijing 100020, China|[1141739]北京联合大学机器人学院;[11417]北京联合大学;

年份：2006

卷号：14

期号：4

起止页码：641-647

中文期刊名：光学精密工程

外文期刊名：Optics and Precision Engineering

收录：CSTPCD;;EI(收录号：20064410214261);Scopus(收录号：2-s2.0-33750392505);北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助(No.50575007);北京市教育委员会科技发展计划资助项目(No.KM-200510005014)

语种：中文

中文关键词：无阀压电泵;流阻;非对称坡面腔底

外文关键词：valve-less piezoelectric pump; flow resistance; Unsymmetrical Slope Chamber Bottom（USCB）

摘要：提出了一种新型的非对称坡面腔底无阀压电泵,这种泵巧妙地利用了泵腔内部的空间,将泵腔底部沿吸入口和排出口方向设计成非对称坡面形状,非对称坡面腔底与压电振子之间形成非对称交替排列的一组锥形流道。当泵工作时,使流体产生单向流动,从而可以不再需要传统的锥形流管;建立了这种泵关于平均值的流阻系数与泵流量关系的力学模型,并利用该模型分析了泵的工作原理;最后制作了非对称坡面腔底无阀压电泵,利用试验证明了上述理论的正确性。试验用泵采用的工作电压为220 V,工作频率为50 Hz,压电振子有效直径为30 mm,当非对称坡面的倾角差为70°,工作介质为水时,泵产生了4.67 mm水柱的压差。
A novel valve less piezoelectric pump with Unsymmetrical Slopes Chamber Bottom （USCB） was presented. It ingeniously takes advantage of the space of the pump chamber by developing its bottom into an unsymmetrical slopes shape along the direetion of the axis of the inlet and outlet, as a resuit, a series of diffuse channels and nozzle channels are alternatively formed between the USCB and the piezoelectric vibrator which is opposite to the USCB. It can force the fluid in the pump chamber to produce net flow when the pump works, and the regular diffuse/nozzle elements fitted outside the chamber can be eliminated. Mathematic model of this pump is established to present the relationship between the mean energy loss and the volume flow rate of the pump. Based on the mathematic model, the working theory of the pump is analyzed. Finally, a real USCB valve-less piezoelectric pump is manufactured, and the theory above-mentioned was verified by the pump in a test. Under conditions of the working voltage of 220 V,working frequency of 50 Hz and the diameter of the piezoelectric vibrator in 30 mm, the pressure difference produced between the inlet and outlet is 4.67 mm column when the pump works on water.