为空气抽气机之一种，是用来抽出密闭容器内气体的机器。一般有手摇和电动两种，主要构造与吸取式抽水机相似。其动作原理与抽水机相似，只不过被抽出的物质为空气。
或不用抽气机，而在进气管道有一接高压清洁空气的进气口(4)。
Otherwise, the air exhauster is not necessary, and the air inlet (4) connecting with the high-pressure clean air is arranged in the air inlet pipeline.
该管道有一清洁空气进口(4)，还设有抽气机与排尘管的排气口(6)相连接。
The pipeline is provided with a clean air inlet (4), and an air exhauster is provided to connect with the air outlet (6) of the dust removing pipe.
本实用新型的技术方案：该设备由三个部分组成，恒温油预热锅、真空电炸锅、真空抽气机。
The technological scheme of the utility model: the device consists of three parts: a preheating pan of constant temperature oil, a vacuum electric frying pan and a vacuum air extractor.
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