| 摘要 |
The invention refers to a centrifugal separator comprising a first separator part and a second separator part which has a centrifuge rotor and rotates during an operation state in relation to the first separator part. A space in connection to the first separator part and the second separator part houses a rotating liquid body (28) during the operation state. A mechanical sealing device is provided at the space for sealing the space. The sealing device comprises a first sealing element on the first separator part and with a first contact surface, and a second sealing element on the second separator part and with a second contact surface in parallel with the first contact surface. The liquid body acts during the operation state on the first sealing element or the second sealing element and dis-places the same axially so that the first contact surface and the second contact surface are pressed against each other. A pre-tensioning element exerts a pre-tensioning force on the axially dis-placeable sealing element. The pre-tensioning force acts to dis not place the first contact surface and the second contact surface from each other so that a gap is formed, which forms a throttling. |
