文章基本信息

标题：Reduction of the suction pressure of a liquid ring vacuum pump with a supersonic gas ejector
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作者：Róbert Olšiak ; Zoltán Fuszko ; Zoltán Csuka 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2018
卷号：168
DOI：10.1051/matecconf/201816803002
语种：English
出版社：EDP Sciences
摘要：A supersonic gas ejector in conjunction with a liquid ring vacuum pump is used for creating and maintaining vacuum in a chamber for technological purposes. In this paper the authors submit an overview about the problematics of suction pressure reduction with a supersonic gas ejector used as a pre-stage of a liquid ring vacuum pump. This system has also the function of a cavitation protection due to the higher pressure present at the suction throat of the vacuum pump. A part of this paper is devoted to the governing equations used at the definition of the flow through an ejector. The experimental studies are then carried out in or own laboratory for verification purposes.