Lithostar水处理系统内的真空泵（以下简称为W35）乃德国制造，一旦损坏将影响整机的正常运转。考虑到购置进口原装W35所化时间过长及价格昂贵等问题，我们采用医院废弃的电动吸引器（型号：YB－DX23D）作替代品，效果很好，观介绍如下：故障现象：起初，M35运转时间超过20秒（ The vacuum pump in the Lithostar water treatment system (hereinafter referred to as W35) is manufactured in Germany. Once it is damaged, it will affect the normal operation of the whole machine. Taking into consideration the long and expensive time spent on the purchase of imported original W35, we used the hospital’s discarded electric aspirator (model: YB-DX23D) as a substitute. The effect was very good. The concept was as follows: Failure phenomenon: Initially, M35 Running time more than 20 seconds (