Automatic drainage device for maintenance of vacuum pump

The utility model discloses an automatic drainage device for vacuum pump maintenance, which comprises a drainage cylinder, a liquid suction head and a spiral blade, the front end of the drainage cylinder is provided with a connecting frame and a telescopic pipe, the front end of the telescopic pipe...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MA YONGSHENG, SHI FENGGUANG, CHEN CHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DRYING DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BYUSING INERTIA OF FLUID TO BE PUMPED PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SEPARATION SIPHONS TRANSPORTING WEAPONS
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