旋片式真空泵主要用来抽除密封容器中的空气或非腐蚀性气体 ,使容器获得真空和作为各种高真空、超高真空获得设备的前级泵。我厂使用的泵附有气镇装置 ,可以抽除可凝性蒸汽 (如水、酒精等 )。它的工作原理及结构简述如下 :该泵是种容积泵 ,它借助于刮板在泵腔中连续转动 ,将气? Rotary vane vacuum pumps are designed to evacuate air or non-corrosive gases in a sealed container to allow the container to be evacuated and to be used as a foreline pump for a wide range of high vacuum, ultra-high vacuum applications. The pump used in our factory is equipped with gas ballast, which can remove condensable steam (such as water and alcohol). Its working principle and structure are summarized as follows: The pump is a kind of positive displacement pump, which uses the scraper to continuously rotate in the pump chamber,