EP1392446B1 - Zentrifugalseparator - Google Patents

Zentrifugalseparator Download PDF

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Publication number
EP1392446B1
EP1392446B1 EP02745310A EP02745310A EP1392446B1 EP 1392446 B1 EP1392446 B1 EP 1392446B1 EP 02745310 A EP02745310 A EP 02745310A EP 02745310 A EP02745310 A EP 02745310A EP 1392446 B1 EP1392446 B1 EP 1392446B1
Authority
EP
European Patent Office
Prior art keywords
bearing
spindle
point
motor
centrifugal separator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02745310A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1392446A1 (de
Inventor
Wilfried Mackel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Mechanical Equipment GmbH
Original Assignee
Westfalia Separator GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westfalia Separator GmbH filed Critical Westfalia Separator GmbH
Publication of EP1392446A1 publication Critical patent/EP1392446A1/de
Application granted granted Critical
Publication of EP1392446B1 publication Critical patent/EP1392446B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/12—Suspending rotary bowls ; Bearings; Packings for bearings

Definitions

  • the invention relates to a centrifugal separator with the Features of the preamble of claim 1.
  • centrifugal separator is known from US-A-2827229 known.
  • the rotor and the frame are elastic Element connected to each other that is a commute of the rotor allowed.
  • the rotor may be due to the elasticity of the element also migrate radially, so that in addition to the gyroscopic movements also hardly predictable Relative movements of the rotor axis in the bearing plane possible are.
  • centrifugal separator is known from DE 31 25 832 known.
  • the focus of the oscillating drive parts falls here with the hinge point located in the area of the only camp.
  • the rotating unit made of spindle and the drum can be rotated in a bearing pot via roller bearings stored.
  • the storage pot including the rotating unit is suspended in the centrifuge frame.
  • Slotted bushings or the like are proposed for this purpose, which is an angular deviation of the axis of rotation compared to the Allow vertical.
  • the belt adjusts Wear part, which means increased maintenance leads.
  • Slip in the belt drive leads to losses in the drive power. So much for the frictional heat generated by slip no longer released from the rack to the environment the frame heats up increasingly.
  • the known Belt-driven separators are therefore used in many potentially explosive atmospheres Environments not desired. That too is drive power that can be transmitted by the belt drive is limited.
  • centrifugal separator is known from DE 43 14 440 C1 known in which the drive spindle, the drum and the rotor of the motor are rigidly connected and form a rotating system that is inelastic in a bearing bridge is stored.
  • the bearing bridge and the stator of the Motors are elastic together with the centrifuge frame connected.
  • the rotating system oscillates in the operation of the Centrifuge around an articulation point. Because of the to be mastered Mass forces and bearing loads are the well-known Construction for heavy engines with high drive power not suitable.
  • centrifugal separator which can be used in potentially explosive environments and with the standard motors with high drive power can be used and where there is no radial displacement the rotor axis opposite the centrifuge frame in the bearing plane is possible.
  • the advantage of this is that the motor from the gyroscopic movement is decoupled from spindle and drum.
  • the between Flexible coupling element provided on motor and spindle can have an angular offset between the axes, as well compensate for a small radial offset so that none strong bending load on the motor shaft and the rotor bearings of the Motors occurs. This is the cost-effective use of Standard motors possible.
  • By the fixed attachment of the The motor on the centrifuge frame is the mass of the pendulum System is reduced by engine mass and it is possible use heavy motors with high drive power.
  • Step through the direct coupling of the motor to the spindle No more severe power losses in the drive train which could lead to rack heating, so that the centrifuge according to the invention basically for use in a potentially explosive atmosphere.
  • the storage of the rotating system in a storage pot the is connected to the frame via elastic bearing elements, leads to an angular misalignment only between the bearing cup and frame adjusts, whereas the angular offset strong between inner ring and outer ring of the respective bearings is reduced. Standard rolling bearings can thus be used become.
  • the inclination of the separator during operation of the Axis of rotation relative to a vertical causes one of the elastic bearing elements arranged between the bearing pot and the frame is compressed while an opposite one is stretched.
  • By distributing a large number of bearing elements along the circumference of a collar of the bearing pot can the compression or expansion of the bearing elements all around with the gyroscopic movement of the rotating system.
  • the bearing pot with a Bearing cup collar over at least three elastic bearing elements is placed on the centrifuge frame and that at least three on the bearing collar Fixed guide pins arranged parallel to the longitudinal axis are each in a compatible hole in the centrifuge frame engage and deformable in the axial direction and / or arranged axially displaceable in the bores are.
  • the guide pins are axial within the bore displaceable or at least deformable to such an extent that a Relative movement between the bearing collar and frame in Direction of the longitudinal axis is possible. While the between Bearing cup collar and the top of the centrifuge frame arranged bearing elements absorb the axial forces, the bearing pot is additionally in through the guide pins , radial direction.
  • a centrifugal separator 100 is complete Sectional view shown. At the bottom of a on a foundation 2 screwed centrifuge frame 40, a motor 90 is attached. In the top of the Frame 40 is a storage pot 20 is used, the elastic Bearing elements 50 and held over guide pins 30 is. In the bearing pot 20 there is a vertically arranged spindle 10, on which a drum 12 is placed, rotatably mounted.
  • the spindle 10 is flexible with the motor 90 Coupling element 70 connected.
  • For torque transmission can use a grooved coupling bush as coupling element and a feather key can be provided.
  • the longitudinal axis 11 of the Spindle 10 and the rotor axis 91 run in the idle state of the Centrifugal separators 10 in flight.
  • the bearing pot 20 has in particular a bearing pot collar 21, an upper bearing 22 and a lower bearing 24 on.
  • the spindle 10 is over Rolling bearing rotatably.
  • a plurality of bearing elements 50 are arranged. Furthermore are at least three guide pins 30 are provided which are compatible in Engage holes in the centrifuge frame 40.
  • the Guide pins 30 are axially elastic and / or axially displaceable arranged and against radial loads largely inelastic.
  • the spindle 10 is flexible Coupling element 70 connected to the motor 90, so that an angular offset between the rotor axis 91 and the Longitudinal axis 11 of the spindle 10 on a gyroscopic movement attributed to the rotating system of spindle 10 and drum 12 is possible.
  • the coupling point K becomes when the spindle axis is inclined 11 slightly deflected radially outwards, which also the shaft of the motor 90 is tilted.
  • the Coupling point K is as close as possible to pivot point G designed to compensate for the angular misalignment between Spindle axis 11 and rotor axis 91 as small as possible and thus to keep the load on the bearings in the motor 90 low.
  • the clutch 70 can also be designed such that a small radial offset between the axes 11 and 91 compensated can be.
  • a torsionally flexible Training possible to peak torque when operating the To cushion the system.
  • a centrifugal separator 100 ' which is shown in Figure 2
  • the coupling point remains during the operation of the Centrifuge on the longitudinal axis 91 of the motor 90 so that the Rotor axis 91 of motor 90 is no longer deflected and overall due to the gyroscopic movement of the rotating system is still charged.
  • Figures 3a and 3b show the orientation of the bearing pot 20 relative to the frame 40 'in different positions in the embodiment of the centrifuge 100 'according to FIG. 2, at which the articulation point G 'coincides with the coupling point K.
  • the spindle 10 is on roller bearings, in particular angular contact balls Roller bearings, at the bearings 22, 24 within the Storage pot 20 stored.
  • the guide pins 30 ' are attached. These point a cone section 32 'and a cylinder section 34 'which is inserted into a socket 35'.
  • the Bushing 35 ' preferably comprises an elastomeric layer that surrounded by an inner and an outer jacket made of metal is.
  • the guide pin 30' in a bore 44 ' is inserted in the frame 40'.
  • the guide pin 30 ' is radially rigid in the bushing 35' Frame 40 'mounted while in the axial direction at one Inclination of the bearing cup 20 a slight axial Displacement of the guide pin 30 'within the bore 44 'is possible.
  • bearing elements 50 are also between the frame 40 'and the bearing collar 21 .
  • three or more bearing elements 50 are also provided, preferably consist of elastomeric materials. The weight forces of the rotating system are over by the spindle 10 the bearing pot 20 rigidly connected to the bearing elements 50 transferred and then introduced into the frame 40 '.
  • Fig. 3a In the starting position shown in Fig. 3a is the Longitudinal axis 11 of the spindle 10 aligned vertically and the Bearing elements 50 are axially evenly loaded.
  • a plane of symmetry 36 ' runs about halfway through the center the bearing bushes 35 '.
  • the hinge point G 'or coupling point K lie at the intersection of the plane of symmetry 36 'with the longitudinal axes 91 and 11.
  • Fig. 3b is by the gyroscopic movement and forces of the rotating Systems from drum, spindle 10 and unbalance of the Systems an inclination of the longitudinal axis 11 by an angle ⁇ takes place, and the bearing cup 20 is around this angle pivot point G rotated.
  • elastomeric bearing elements 50 Spring energy creates a restoring moment that together with the gyroscopic moment an erection of the rotating Systems causes.

Landscapes

  • Centrifugal Separators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
EP02745310A 2001-05-26 2002-05-23 Zentrifugalseparator Expired - Lifetime EP1392446B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10125808 2001-05-26
DE10125808A DE10125808A1 (de) 2001-05-26 2001-05-26 Zentrifugalseparator
PCT/EP2002/005664 WO2002096566A1 (de) 2001-05-26 2002-05-23 Zentrifugalseparator

Publications (2)

Publication Number Publication Date
EP1392446A1 EP1392446A1 (de) 2004-03-03
EP1392446B1 true EP1392446B1 (de) 2004-11-03

Family

ID=7686311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02745310A Expired - Lifetime EP1392446B1 (de) 2001-05-26 2002-05-23 Zentrifugalseparator

Country Status (13)

Country Link
US (1) US6960158B2 (pt)
EP (1) EP1392446B1 (pt)
JP (1) JP4149817B2 (pt)
CN (1) CN1284631C (pt)
AT (1) ATE281243T1 (pt)
AU (1) AU2002316919B2 (pt)
CA (1) CA2448257C (pt)
DE (2) DE10125808A1 (pt)
DK (1) DK1392446T3 (pt)
ES (1) ES2232762T3 (pt)
NZ (1) NZ529194A (pt)
PT (1) PT1392446E (pt)
WO (1) WO2002096566A1 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009139706A1 (en) 2008-05-13 2009-11-19 Alfa Laval Corporate Ab Centrifugal separator

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10125808A1 (de) * 2001-05-26 2002-12-12 Westfalia Separator Food Tec G Zentrifugalseparator
AU2003256999B2 (en) * 2002-08-02 2008-01-03 Harvest Technologies Corporation Decanting centrifuge with vibration isolation
DE10314118B4 (de) * 2003-03-28 2005-05-12 Westfalia Separator Ag Antriebsvorrichtung für einen Separator
SE526010C2 (sv) * 2003-04-08 2005-06-14 Alfa Laval Corp Ab En drivanordning för en centrifugalseparator
CN101065588B (zh) * 2004-11-12 2010-09-01 谢夫勒两合公司 旋转连接装置
DE102006011895A1 (de) * 2006-03-15 2007-09-20 Westfalia Separator Ag Separatoranordnung in sanitärer Ausführung
DE102006020467A1 (de) * 2006-04-28 2007-10-31 Westfalia Separator Ag Separator mit Direktantrieb
SE530223C2 (sv) * 2006-05-15 2008-04-01 Alfa Laval Corp Ab Centrifugalseparator
US7806820B2 (en) * 2007-05-02 2010-10-05 Gary Wayne Howell Automatic balancing device and system for centrifuge rotors
DE102007060588A1 (de) * 2007-12-13 2009-06-18 Gea Westfalia Separator Gmbh Separator mit einem Direktantrieb
EP2225042A1 (de) * 2007-12-13 2010-09-08 GEA Westfalia Separator GmbH Separator mit einem schmiermittelsystem für einen kurzspindelantrieb
SE532905C2 (sv) * 2008-09-22 2010-05-04 Alfa Laval Corp Ab Centrifugalseparator
US8984940B2 (en) * 2012-04-04 2015-03-24 Elliot Company Passive dynamic inertial rotor balance system for turbomachinery
DE102012105499A1 (de) * 2012-06-25 2014-01-02 Gea Mechanical Equipment Gmbh Separator
CN105772234B (zh) * 2016-04-19 2018-05-08 中国科学院理化技术研究所 一种大型离心设备转子自调心防护装置
DE102016224670A1 (de) * 2016-12-12 2018-06-14 Aktiebolaget Skf Lageranordnung zur Lagerung eines Schraubenkompressorrotors und Verfahren zur Montage eines Schraubenkompressors

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GB814352A (en) * 1957-06-27 1959-06-03 Eugen Scharpf Improvements in or relating to centrifugal driers
SE505128C2 (sv) * 1995-10-10 1997-06-30 Alfa Laval Ab Dämpningsanordning
GB269218A (en) * 1925-10-20 1927-04-20 Frank Grimble An improved method of mounting and driving centrifugal separating apparatus
US2487343A (en) * 1948-04-23 1949-11-08 Laval Separator Co De Bearing assembly for centrifuges and the like
US2534738A (en) * 1948-06-18 1950-12-19 Laval Separator Co De Mount for rotating parts
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DE1657276B1 (de) * 1968-03-01 1971-07-08 Heraeus Christ Gmbh Daempfungseinrichtung fuer einen zentrifugenrotor
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DE2711065C3 (de) * 1977-03-14 1982-05-19 Gesellschaft für Kernverfahrenstechnik mbH, 5170 Jülich Radial gedämpftes Fanglager für überkritisch laufende Rotoren
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009139706A1 (en) 2008-05-13 2009-11-19 Alfa Laval Corporate Ab Centrifugal separator

Also Published As

Publication number Publication date
AU2002316919B2 (en) 2007-08-09
NZ529194A (en) 2005-01-28
CN1284631C (zh) 2006-11-15
DK1392446T3 (da) 2005-03-14
US20040142808A1 (en) 2004-07-22
ES2232762T3 (es) 2005-06-01
WO2002096566A1 (de) 2002-12-05
DE50201474D1 (de) 2004-12-09
EP1392446A1 (de) 2004-03-03
CA2448257C (en) 2011-02-01
JP4149817B2 (ja) 2008-09-17
ATE281243T1 (de) 2004-11-15
US6960158B2 (en) 2005-11-01
JP2004526571A (ja) 2004-09-02
DE10125808A1 (de) 2002-12-12
CA2448257A1 (en) 2002-12-05
CN1561263A (zh) 2005-01-05
PT1392446E (pt) 2005-03-31

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