The stabilization of condenser vacuum due to the collaboration of condenser and air extractor, the running status of air extractor is influential to condenser vacuum.
凝汽器内真空的稳定，需要凝汽器和抽气器的联合工作，抽气器的运行状态对凝汽器真空具有相当大的影响。
2
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.