US 12,263,490 B2
Centrifugal separator having eccentric conduit
Kasper Höglund, Rönninge (SE)
Assigned to ALFA LAVAL CORPORATE AB, Lund (SE)
Appl. No. 17/296,604
Filed by ALFA LAVAL CORPORATE AB, Lund (SE)
PCT Filed Dec. 9, 2019, PCT No. PCT/EP2019/084149
§ 371(c)(1), (2) Date May 25, 2021,
PCT Pub. No. WO2020/120365, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 18211240 (EP), filed on Dec. 10, 2018; application No. 18211241 (EP), filed on Dec. 10, 2018; and application No. 19177320 (EP), filed on May 29, 2019.
Prior Publication US 2022/0023887 A1, Jan. 27, 2022
Int. Cl. B04B 1/08 (2006.01); B04B 7/08 (2006.01); B04B 7/14 (2006.01); B04B 9/12 (2006.01); B04B 11/02 (2006.01)
CPC B04B 1/08 (2013.01) [B04B 7/08 (2013.01); B04B 7/14 (2013.01); B04B 9/12 (2013.01); B04B 11/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An exchangeable separation insert for a centrifugal separator, for separating a fluid mixture, comprising:
a rotor casing enclosing a separation space in which a stack of separation discs is arranged to rotate around an axis of rotation, said rotor casing being axially arranged between a first stationary portion and a second stationary portion;
a feed inlet for supply of the fluid mixture to be separated to said separation space,
a light phase outlet for discharge of a separated phase of a first density, and a heavy phase outlet for discharge of a separated phase of a second density higher than said first density, wherein two of said feed inlet, light phase outlet and heavy phase outlet are arranged at a first axial end of said rotor casing; and
a first seal assembly sealing and connecting said two of said feed inlet, light phase outlet and heavy phase outlet to a corresponding inlet conduit and/or outlet conduits in said first stationary portion,
wherein said first seal assembly comprises a rotatable part attached to said rotor casing and a stationary part attached to said first stationary portion,
wherein said rotatable part and said stationary part are axially aligned and seal against each other, and
wherein a first of said two of said feed inlet, light phase outlet and heavy phase outlet is arranged axially at the axis of rotation and a second of said two of said feed inlet, light phase outlet and heavy phase outlet has an axis axially outside of said first of said two of said feed inlet, light phase outlet and heavy phase outlet in such a manner that both said first and second of said two of said feed inlet, light phase outlet and heavy phase outlet are led through said rotatable part and said corresponding inlet conduit and/or outlet conduits are led through said stationary part of said first seal assembly.