In order to prevent the malfunction of submersible sewage pump used to solid garbage andvoluble garbage, the pneumatic drain device with compressed air power is discussed.

• 针对潜污泵在含固体废物以及缠绕性废物较多的场合应用中故障率较高的现象,设计了利用压缩空气作为动力的气动排污装置。