Design of a piezoelectric liquid pump

[miva]

Hey guys

im in the process of designing a piezoelectric liquid pump, i am looking to make the structure out of RP printer for now and use a PDMS diagrphram for the piezo device to be mounted apon. Have any of you guys worked with piezo materials before as i am in need of a strong high amplitude varying one.

Also I am thinking of using medical check valves to be able to build a flow in one direction but i think there won't be enough back pressure to keep them tightly sealed.

Any opinions would help very much!

 

[Bobwareham]

How about a piezoelectric cleaner unit to make the isolations to the diaphragm as this piezo devise is very strong but you would have to make a circuit to drive it at high voltage.

 

[oswaler]

Hello! That sounds like an interesting project. I have some experience with piezoelectric materials and their applications in pumps. The use of a PDMS diaphragm is a good choice as it is a flexible and durable material. However, it is important to ensure that the diaphragm is securely mounted onto the piezo device to prevent any leaks or malfunctions.

As for the piezo material itself, I would recommend looking into lead zirconate titanate (PZT) as it is a commonly used and high-performing material for piezoelectric devices. It has a high amplitude and can produce strong vibrations, making it suitable for your pump design.

In terms of the check valves, you are correct in considering the back pressure and potential leakage. One solution could be to use a spring-loaded check valve, which would provide a stronger seal against backflow. Alternatively, you could also consider using a pressure regulator to maintain a constant back pressure.

Overall, it seems like you have a solid plan in place for your piezoelectric liquid pump design. I would also recommend consulting with other experts in the field and conducting thorough testing to ensure the efficiency and effectiveness of your design. Best of luck with your project!