论文部分内容阅读
为提高压电泵的输出能力,提出一种多腔串联压电泵,并从理论和试验两方面进行了研究.理论分析表明,在其他条件确定时,多腔串联压电泵的输出压力与泵腔数量n成正比,输出流量与姨%n成正比.设计制作了金属阀五腔串联压电泵,并以水为工作介质测试了工作腔数量不同时的输出特性.结果表明,压电泵工作腔数量不同时,存在不同的最佳工作频率使其输出压力或流量最大,且压力最佳频率及流量最佳频率均随工作泵腔数量的增加而增加,但增加幅度不同;在最佳频率时,五腔串联泵输出压力及流量均与工作腔数量成正比.在电压为150 V、工作频率为最佳频率时,5腔工作时的最大压力和流量分别为100 kPa和246.54 mL/min,分别为单腔工作时的6.7倍和4.2倍.
In order to improve the output capacity of the piezoelectric pump, a multi-chamber series piezoelectric pump is proposed, and the theoretical and experimental studies are carried out.The theoretical analysis shows that when the other conditions are determined, the output pressure of the multi- The number of pump chamber n is proportional to the output flow and aunt% n is proportional to the design of a metal valve five chamber series piezoelectric pump and water as the working medium test the number of different working chamber output characteristics.The results show that the piezoelectric Different working chambers have different operating frequencies to maximize the output pressure or flow rate, and the optimal pressure and flow rate increase with the increase of the number of working chambers, but the increasing range is different. With good frequency, the output pressure and flow rate of the five-chamber tandem pump are both proportional to the number of working chambers.The maximum pressure and flow rate of the five-chamber working chamber are 100 kPa and 246.54 mL at the voltage of 150 V and the optimum operating frequency, respectively / min, respectively 6.7 times and 4.2 times when working in single chamber.