基于等温容器的气缸泄漏流量测定的研究

A Study on the Measurement Method of Leakage Flow-rate for Pneumatic Cylinder Based on Isothermal Chamber

现有的泄漏流量测定法需要拆解测试气动装置,无法在驱动状态下测定气体泄漏流量。该文通过引入等温容器提出一种新型气体泄漏测定法,不仅可以在气动装置运动和等温状态下测定容器内的压力变化计算泄漏流量,而且适用于较大的流量测定范围。实验结果表明此方案的有效性。

In present, the existing measurement of leakage flow-rate need disassemble the test component. Therefore, there is no effective method to measure the leakage flow-rate while operating pneumatic driving apparatus. In this study, a measurement method of leakage flow- rate for pneumatic driving apparatus is proposed using isothermal chamber. The method is that measuring from the pressure change in an iso- thermal chamber that can realize isothermal conditions by stuffing steel into it, wide range of flow-rate could be measured only from the pressure response and the effectiveness of the proposed method is proved by experiment results.