Functional Design and Performance Evaluation of Partial-throw away Micropump: Principle and Application
Date Issued
2014
Date
2014
Author(s)
Hsu, Sheng-Wei
Abstract
In this paper, partial throw away micropumps for use in disposable device and medical usage were designed to reduced fabrication costs. We presented two partial throw away micropumps with vertical flow channel and horizontal flow channel respectively. According to airtight, bubble tolerance and stability test, the performance of partial throw away micropumps with vertical flow channel is better than with horizontal flow channel. We also used six parameters such as torque of tighten, working frequency, membrane thickness, ratio of diameter and membrane pillar, chamber diameter and chamber depth to evaluate performance of micropump and chosen optimal performance of micropump from different combination of parameters. Furthermore, the optimal micropump has been analyzed about its flow resistance, reverse flow, flow rate and pumping head.
The experimental result using water as a sample shows that parameters of 2kgf-cm torque of tighten, 0.4mm membrane thickness, 0.6 ratio of diameter and membrane pillar, 2mm chamber depth, 7.5mm chamber diameter and 120Hz working frequency is the optimal combination. Maximum flowrate of optimal micropump can reach 21.2ml/min while maximum pumping head is 4.1kPa which is higher than human blood vessel pressure, 1.4kPa.
Subjects
壓電片
微型泵
閥件
可拋棄
PDMS
Type
thesis
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