A SUBMERSIBLE MACHINE

摘要

The invention concerns a device for a submersible machine, such as a pump, a turbine or a mixer. The machine comprises a driving unit (1) and a hydraulic unit (2) having an impeller connected to the driving unit via a rotary shaft (3). In order to prevent th e medium in the hydraulic unit from entering the driving unit along the driving shaft, a n intermediate seal device is arranged The seal device comprises two mechanical face seals (5) and (6) and an intermediate room (7) containing barrier liquid. In order to prevent possibl e leaking barrier liquid from damaging the shaft bearing (4), a storage tank (9) for collecting said liquid is arranged within the room (7)