Disc stack centrifugal separator
AssigneeAlfa Laval Corporate AB
InventorsThomas ELIASSON, Per FONSER
Life of this patent
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Abstract
Herein a centrifugal separator is disclosed. The centrifugal separator includes a housing, a spindle, and a rotor. The spindle is only journalled in a bearing arrangement fixedly positioned in the housing at the first axial end portion. The centrifugal separator includes a seal arranged between the spindle and the housing. The seal is arranged at a distance from the bearing arrangement where the spindle is subjected to deflection. The seal includes a cylindrical inner surface associated with the housing, a circular slot in the spindle or in a rotating member associated with the spindle, and a piston ring arranged in the slot and abutting against the cylindrical inner surface.
Claims20
A disc stack centrifugal separator for separating a light fluid phase and a heavy fluid phase from a fluid feed mixture, the centrifugal separator comprising:
- a housing;
- a spindle;
- a rotor;
- and,
- a seal arranged between the spindle and the housing,
- wherein the spindle is journalled in the housing at a first axial end portion of the spindle and the rotor is connected to a second axial end portion of the spindle,
- wherein the spindle is only journalled in a bearing arrangement fixedly positioned in the housing at the first axial end portion,
- wherein the seal is arranged at a distance from the bearing arrangement where the spindle is subjected to deflection, and
- wherein the seal comprises a cylindrical inner surface associated with the housing, a circular slot in the spindle or in a rotating member associated with the spindle, and a piston ring arranged in the slot and abutting against the cylindrical inner surface.
Dependencies are inferred from the claim text.