21410 浅底水槽を用いた真空エゼクタの内部流れについて(流体工学(4))

概要

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The purpose of this study elucidates a structure of internal flow in vacuum ejector. The vacuum ejector is used as a part of automatic conveyance systems, in which precision components and food were handled utilizing vacuum pressure produced by the ejector. So far, the vacuum ejector has been designed mostly by experience and the internal flow in vacuum ejector is not well analyzed. The flow field of ejector is so small that conventional measurements can not be employed and it is difficult to obtain the detailed information. Thus, the flow in the ejector is simulated on water table using hydraulic analogy. In this paper, to obtain optimum performance of the ejector, we examined the different ejector models with some parameters, such as the nozzle width and the nozzle-mixing chamber space. The vacuum ejector model, in which nozzle width is 40mm, mixing chamber 100mm in width, nozzle-mixing chamber space 40mm, demonstrates maximum performance.
一般社団法人日本機械学会の論文
2007-03-15