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蠕動泵浦輸出壓力震盪緩衝之開發研究
Development of Pressure Pulsation Damper for Peristaltic Pumps
摘要
近年來有許多的微量液體連續供應的需求，例如：微型燃燒器的液態燃料供應以及超音波薄膜噴霧等技術，本研究的目的在於開發一個壓力震盪緩衝器供蠕動泵浦使用，並泵送穩定的微量流體。蠕動泵浦所泵送的液體是突波脈衝式的，尤其是在低速運轉時更加明顯，為了使用蠕動泵浦提供穩定且平順的液體在管路中安置震盪緩衝器是必須的。本研究將設計並開發一個液壓儲蓄器並且將之整合於蠕動泵浦輸出管道上，該液壓儲蓄器使用空氣進行流道內非壓縮液體的穩壓使其保持在適當的壓力並且吸收壓力震盪。系統流量與泵浦揚程以及泵浦轉速等資訊關係將在本研究中進行分析與量測，除此之外根據本研究所得知結果將作為未來低流量液體供應系統設計參考之用。
並列摘要
The purpose of the present paper is to develop a pressure pulsation damper for peristaltic pumps which are applied to pump fluid for ultrasonic spray coating technique. The flow is pulsed especially at low operation speeds. In order to obtain a more smooth consistent flow, a pulsation damper is required. In the present study, a hydraulic accumulator will be fabricated as a pulsation damper and integrated with a peristaltic pump. The pressure of non-compressible fluid for ultrasonic spray is held under suitable pressure by a compressed gas. The relationship between flow rate and pumping pressure as well as the rotation speed of pump motor will be evaluated. In addition, based on the results that will be obtained via proposed study, a complete database will be established and can be served as the design basis for low flowrate fluid pumping.