WO2014072318A2 - Separator mit direktantrieb - Google Patents
Separator mit direktantrieb Download PDFInfo
- Publication number
- WO2014072318A2 WO2014072318A2 PCT/EP2013/073117 EP2013073117W WO2014072318A2 WO 2014072318 A2 WO2014072318 A2 WO 2014072318A2 EP 2013073117 W EP2013073117 W EP 2013073117W WO 2014072318 A2 WO2014072318 A2 WO 2014072318A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drive
- lubricant
- bearing
- separator according
- stator
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
- B04B15/02—Other accessories for centrifuges for cooling, heating, or heat insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
-
- 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
- B04B9/02—Electric motor drives
-
- 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
- B04B9/02—Electric motor drives
- B04B9/04—Direct drive
-
- 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 separator having the features of the preamble of claim 1.
- Such separators which are also suitable for industrial use, in particular also in continuous operation, are known per se from the prior art.
- the power is transmitted from the electric motor to the rotor via a drive belt or by a helical gear.
- the drive housing itself is formed in two parts, wherein an upper part rests with a flange on a lower part. There is lubrication with oil but no cooling with a coolant in addition to the lubricant.
- the stator is mounted directly on the inner circumference of the drive housing.
- the invention solves this problem by the subject matter of claim 1. Particularly noteworthy are the ease of installation and maintenance of Separatorantriebs and the advantageous cooling system both for cooling the engine and the drive in the space vertically from top to bottom flowing back liquid lubricant. A generation of a lubricant mist is therefore not required but it can be directly used a lubrication of the bearings of the drive spindle with flowing, liquid lubricant, so that no
- Lubricant can enter the electric motor itself, which would be inevitable in the use of an oil mist system.
- the rotor sits directly on the radially movable drive spindle in this area, at the end of the drum is placed.
- the cooling system - a cooling circuit for a cooling fluid, in particular water - preferably and advantageously completely or partially directly into the drive housing integrated, whereas the electric motor - in particular the stator - does not have its own built-in liquid cooling per se.
- Liquid cooling device - be designed particularly cost.
- lubrication with a lubricant.
- lubricant and the coolant various liquids are preferably used.
- Fig. 1 is a sectional view of a schematically illustrated first
- Fig. 2 is a sectional view of a schematically illustrated second
- FIG. 1 shows a separator 1 with a centrifugal drum 2 with a vertical axis of rotation D, which is surrounded by a hood assembly 3, located on a
- the machine frame-like drive housing 4 is supported.
- the drive housing 4 can preferably via spring elements, not shown here in sprung execution on a foundation.
- the centrifugal drum 2 is shown here only schematically. It is preferably for continuous operation for the continuous clarification and / or separation of a flowable product into one or two liquid phases and optionally one
- Solid phase - especially in industrial process - designed her interior is preferably provided with a separation plate stack. Also the
- Hood assembly 3 is shown only schematically. In particular, it may have a solids catcher and one or more bushings for product feeds and outlets not shown here). These features have long been known to the person skilled in the art and require no further details here.
- the preferably single or double conical centrifugal drum 2 is placed on the vertical upper end of a drive spindle 5 here.
- This drive spindle 5 is rotatably mounted with a bearing arrangement, which here has a neck bearing 6 and a foot bearing 7.
- the neck bearing 6 is supported via at least one elastic element radially in a bearing housing 9, which in turn is secured to the drive housing 4.
- the bearing housing 9 to a flange portion 10 which rests on a first - vertically upper - collar 1 1 on the inner circumference of the drive housing 4 and secured there, here with circumferentially distributed first screws 12.
- the elastic element exists here as well
- the neck bearing 6 is preferably formed as a rolling bearing, which rests here on a ring 13, which in turn is placed on the spindle 5 and there rests downwardly on a diameter gradation 14 of the spindle 5. In the elastic element, it is guided vertically displaceable and radially supported.
- the demanding larger 7 is designed as an axial bearing and preferably
- the rotation of the foot bearing 7 is achieved here by way of example by a pin 42 which is inserted in each case in an opening of the inner ring 18 and the drive housing.
- a rolling bearing is preferably used here, which can absorb the resulting axial forces in a suitable manner.
- a rolling bearing is preferably used here, which can absorb the resulting axial forces in a suitable manner.
- Suitable for this example deep groove ball bearings, angular contact ball bearings. If necessary, these bearings can also be arranged in pairs, if required by the male forces.
- the joint bearing described here takes over the gimbal inclination and support.
- the entire unit consisting of spherical plain bearings and roller bearings can be replaced with low forces to be absorbed, in particular axial forces by a self-aligning ball bearing or spherical roller bearings.
- Thetician larger 7 is here upwards at its inner circumference at a further fürmesserstufung 16 of the drive spindle 5 and downwardly at its outer periphery on a step 17 of an outer circumference spherical segment-like inner ring 18, which in turn engages in a correspondingly complementarily shaped outer ring 19, which rests on a gradation 41 of the drive housing 4.
- This arrangement is compact and allows a simple and reliable way to support the weight of the centrifugal drum 2 via the foot bearing on the drive housing. 4
- Electric motor 20 with a rotor 21 and a stator 22 is arranged. This is completely between the neck bearing 6 and the foot bearing 7.
- the rotor 21 is arranged and fixed directly on the drive spindle.
- the drive spindle 5 in operation.
- the drive spindle 5 can here at its periphery a suitable contouring - e.g. Stages - for fixing or arranging the rotor 21 have.
- the stator 22 is firmly connected to the drive housing 4. This changes the radial gap width between the stator 22 and the rotor 21 during operation as a result of the movements of the drive spindle 5.
- the drive spindle 5 also carries out its precession movement between the neck bearing 6 and the foot bearing 7 (as a fixed bearing) as a result of the gyro laws, this is limited in this area (stop), so that with the help of a corresponding air gap between the stator 22 and the Motor rotor 21 can be ensured that the rotor 21 and the stator 22 do not touch during operation in spite of radial relative movement.
- Such relative movements may be e.g. imbalances, especially in the range of the resonant frequency of the system during startup of the drum, or for example by movements of the entire machine due to wave influence when used on board ships and possibly have their greatest deflections.
- Supported neck bearing 6 formed advantageously allows in terms of the resonance frequency, a supercritical operation of the motor rotor 21 and the centrifugal drum 2.
- the mass properties of the motor rotor 21 are so small that they do not adversely affect the dynamic behavior of the
- the separator drum forms together with the spindle and the
- Neck bearing support in the first approximation of a one-mass oscillator, which is excited by the rotating drum and in particular by the co-rotating unbalance.
- the elastic neck support significantly reduces its natural frequency compared to nearly rigid constructions. As critical speed (resp.
- Frequency is the speed at which the forces caused by the rotating drum and co-rotating imbalance in the machine
- separators are operated at their operating speed well above the critical speed (resonant frequency), so that even a major imbalance without adverse effects of the machine is endured.
- Neck bearing 6 and the footrest 7 is arranged.
- Stator laminations 23 'of the stator 22 to surround with a sleeve body 24 having - preferably at its vertically upper end - a flange portion 25 which on a corresponding collar portion 26 on the inner circumference of the stator 22
- Bearing housing 4 rests or rests here.
- suitable fastening means here one or more (circumferentially distributed) screws 27, is provided.
- the stator can be prefabricated in a simple manner as a preassembled unit with the radially outer sleeve body 24 in the drive housing.
- motors (stators 22 and rotors 21) of different lengths and thus different engine outputs can be fixed to the flange section 25 in a simple manner due to the design type selected, which also illustrates a comparison of FIGS. 1 and 2 in particular.
- FIGS. 1 and 2 are largely identical and differ essentially only in the axial length of the electric motors 20 and 20 '.
- the axial length of the electric motor 20, 20 ' can vary within a considerable range, which advantageously makes it possible to use identical drive housings 4 for electric motors 20, 20' of different length and power.
- FIGS. 1 and 2 A comparison of FIGS. 1 and 2 makes it clear that with differently long stators 22, the sleeve body 24 used as the interface of the stator 22 to the drive housing 4 still has the same vertical length. Preferably, even an identical sleeve body 24 is used despite a different vertical length.
- the electric motor may be an asynchronous motor or a synchronous motor.
- the drive chamber 28 is designed to be upwardly (except for an annular gap 29 to the drive spindle 5 above the neck bearing 6) and downwardly and laterally largely closed. If required for a higher-quality seal between the drive chamber and the drum space, a labyrinth seal or a shaft seal of known design can be used in addition to the annular gap (not shown here).
- stator 22 and the rotor or motor rotor 21 are arranged open in the drive space 28 between the neck bearing 6 and the foot bearing 7.
- FIGS. 1 and 2 also provide
- the drive spindle 5 is hollow or has an inner centric
- Lubricant line or bore 30, which extends axially from an area below the contemplatlagers 7 through the region of the motor rotor 21 of the electric motor 20 into the region of the neck bearing 6, where the lubricant line 30 preferably via a radial Schmierstoffzu GmbHbohrung 31 opens into the drive chamber 28 , And in such a way that with the exiting from this bore 31 lubricant lubrication of the neck bearing 6 can be done.
- the lubricant supply bore 31 therefore preferably discharges above the neck bearing 6 into the drive space. Alternatively, it could also open just below the neck bearing 6 in the drive chamber 28, if this ensures sufficient lubrication of the neck bearing 6.
- a lubricant pump in particular a suction tube pump or a centrifugal pump, here with a rib arrangement 32 on the inner circumference of the axial lower end of
- Lubricant hole 31 realized) integrated.
- Oil quantity control (adjustment) to and can be adapted to the lubricant or the operating conditions such as the site (ambient temperature) and designed to be interchangeable.
- Electric motor 20 can drip. This prevents oil from passing through the gap between the stator 22 and the rotor 21 back into the oil sump.
- the oil runs on the inner wall of the drive housing 4 down and through the holes back into the oil or lubricant sump 33.
- the engine is shown schematically different left and right of the axis of rotation shown in order to facilitate understanding.
- the foot bearing 7 can be completely below the lubricant level in
- Lubricant sump 33 are located or be arranged completely in the lubricant bath.
- the winding head temperature is usually very high.
- these winding heads are quite far away from the bearings, which is an advantage over the prior art.
- the foot bearing 7 is here in the oil sump, it can also be kept very cool.
- the neck bearing 6 is lubricated with flowing lubricant, it is also better cooled than in an oil mist lubrication, as known in the art.
- the lubricant can flow back through further channels / bores 35 into a region of the drive chamber 28 lying below the foot bearing 7 in order to be able to enter the line 30.
- a drain plug 39 allows for draining / changing the lubricant.
- the lubricant level is preferably just below the electric motor 20 without having this contact.
- the heat output resulting from the losses of the electric motor can be emitted on the one hand over the surface of the drive housing or a correspondingly designed surface enlargement (for example, cooling fins on the outer surface of the drive housing 4 over the entire axial length between the neck bearing and the foot bearing 7 in a correspondingly large configuration).
- Drive housing to guide a cooling medium to cool the lubricant.
- This cooling medium preferably and particularly advantageously cools both the lubricant and the electric motor (in particular the stator 20). This is realized in a simple way as follows.
- a coolant supply line and a coolant discharge - 35, 36 - provided for a cooling liquid or a cooling gas, which open into at least one chamber, preferably an annular chamber 37, which in the drive housing 4 or structurally particularly simple and practical way between the drive housing 4 and sections of the
- Sleeve body 24 is formed. Other components such as a coolant pump and possibly a filter to complete the coolant circuit are not shown here, since they are known per se.
- the lubricant flowing through the lubricant passage 34 is cooled.
- the stator 20 is cooled particularly effectively.
- FIG. 2 it can be seen that the cooling of the electric motor 20 essentially takes place through the chamber, in particular the annular chamber of the cooling circuit integrated into the drive housing 4.
- the actual electric motor limits here with the sleeve body 24 and the cooling chamber, here the annular chamber 37. But he does not have his own cooling system. This simplifies its installation and also the change, which is also particularly cost-effective by this measure.
- the stator 22 of the electric motor 20 itself can be provided and changed in a particularly simple manner as a prefabricated module. It would also be conceivable to limit the annular chamber with an additional sleeve inside, but this is less preferred.
- one or more seals 40 may be arranged to seal the gap between the sleeve body 24 and the collar portion 26 (or the cooling chamber).
- the sleeve body 24 thus forms in constructive
- Sight glasses 43 in the outer wall allow a visual control of the lubrication system, in particular, since one of the sight glasses 43 is vertically at the level of the maximum lubricant level, so that the lubricant level can be monitored, with a second (here upper) sight glass 43 the view in allows the lubricant channel 34 and thus the oil return
- Stator laminated core 23 Sleeve body 24 flange portion 25 collar portion 26 screws 27 drive space 28 annular gap 29
Landscapes
- Motor Or Generator Frames (AREA)
- Centrifugal Separators (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201380058692.9A CN104797343A (zh) | 2012-11-12 | 2013-11-06 | 具有直接驱动装置的分离器 |
SG11201503572QA SG11201503572QA (en) | 2012-11-12 | 2013-11-06 | Separator with direct drive |
JP2015541110A JP2016505352A (ja) | 2012-11-12 | 2013-11-06 | ダイレクトドライブによるセパレータ |
US14/442,064 US9981275B2 (en) | 2012-11-12 | 2013-11-06 | Separator with direct drive and coolant system integrated into drive housing |
CA2889766A CA2889766C (en) | 2012-11-12 | 2013-11-06 | Separator with direct drive |
AU2013343679A AU2013343679B2 (en) | 2012-11-12 | 2013-11-06 | Separator with direct drive |
RU2015121635A RU2015121635A (ru) | 2012-11-12 | 2013-11-06 | Сепаратор с прямым приводом |
BR112015010479-7A BR112015010479B1 (pt) | 2012-11-12 | 2013-11-06 | Separador com acionamento direto |
EP13789760.9A EP2916961B1 (de) | 2012-11-12 | 2013-11-06 | Separator mit direktantrieb |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012110846.3A DE102012110846A1 (de) | 2012-11-12 | 2012-11-12 | Separator mit Direktantrieb |
DE102012110846.3 | 2012-11-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2014072318A2 true WO2014072318A2 (de) | 2014-05-15 |
WO2014072318A3 WO2014072318A3 (de) | 2014-09-18 |
Family
ID=49582728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/073117 WO2014072318A2 (de) | 2012-11-12 | 2013-11-06 | Separator mit direktantrieb |
Country Status (12)
Country | Link |
---|---|
US (1) | US9981275B2 (de) |
EP (1) | EP2916961B1 (de) |
JP (1) | JP2016505352A (de) |
KR (1) | KR20150084034A (de) |
CN (1) | CN104797343A (de) |
AU (1) | AU2013343679B2 (de) |
BR (1) | BR112015010479B1 (de) |
CA (1) | CA2889766C (de) |
DE (1) | DE102012110846A1 (de) |
RU (1) | RU2015121635A (de) |
SG (1) | SG11201503572QA (de) |
WO (1) | WO2014072318A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110212820A1 (en) * | 2008-09-22 | 2011-09-01 | Alfa Laval Corporate Ab | Centrifugal separator |
CN107683177A (zh) * | 2015-06-02 | 2018-02-09 | Gea机械设备有限公司 | 分离机 |
WO2019002429A1 (de) | 2017-06-30 | 2019-01-03 | Gea Mechanical Equipment Gmbh | Separator mit direktantrieb |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE533089C2 (sv) * | 2008-05-13 | 2010-06-22 | Alfa Laval Corp Ab | Centrifugalseparator |
DE102013100180A1 (de) * | 2012-03-26 | 2013-09-26 | Gea Mechanical Equipment Gmbh | Separatoranordnung |
DE102012110846A1 (de) * | 2012-11-12 | 2014-05-15 | Gea Mechanical Equipment Gmbh | Separator mit Direktantrieb |
EP3075455B1 (de) | 2015-03-31 | 2017-12-06 | Alfa Laval Corporate AB | Kühlung oder heizung von lagern in einem zentrifugalabscheider |
CN105057120A (zh) * | 2015-09-11 | 2015-11-18 | 戴杰 | 一种转鼓下支承装置 |
DE102017215784A1 (de) * | 2017-09-07 | 2019-03-07 | Zf Friedrichshafen Ag | Getriebe für ein Kraftfahrzeug |
EP3878559A1 (de) | 2020-03-12 | 2021-09-15 | Alfa Laval Corporate AB | Zentrifugalabscheider |
DE102022117310A1 (de) * | 2022-07-12 | 2024-01-18 | Gea Westfalia Separator Group Gmbh | Verfahren zur Überwachung und Regelung der Kühlmitteltemperatur einer Antriebvorrichtung eines Separators |
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-
2012
- 2012-11-12 DE DE102012110846.3A patent/DE102012110846A1/de not_active Withdrawn
-
2013
- 2013-11-06 CA CA2889766A patent/CA2889766C/en active Active
- 2013-11-06 EP EP13789760.9A patent/EP2916961B1/de active Active
- 2013-11-06 BR BR112015010479-7A patent/BR112015010479B1/pt active IP Right Grant
- 2013-11-06 RU RU2015121635A patent/RU2015121635A/ru not_active Application Discontinuation
- 2013-11-06 CN CN201380058692.9A patent/CN104797343A/zh active Pending
- 2013-11-06 WO PCT/EP2013/073117 patent/WO2014072318A2/de active Application Filing
- 2013-11-06 SG SG11201503572QA patent/SG11201503572QA/en unknown
- 2013-11-06 KR KR1020157014859A patent/KR20150084034A/ko not_active Application Discontinuation
- 2013-11-06 JP JP2015541110A patent/JP2016505352A/ja active Pending
- 2013-11-06 AU AU2013343679A patent/AU2013343679B2/en active Active
- 2013-11-06 US US14/442,064 patent/US9981275B2/en active Active
Patent Citations (5)
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DE513192C (de) * | 1930-11-24 | Ramesohl & Schmidt Akt Ges | Unterteilte Schleuderspindel | |
DE570729C (de) * | 1929-06-07 | 1933-02-20 | Siemens Schuckertwerke Akt Ges | Durch Elektromotor angetriebene Schleudermaschine |
EP0017344A1 (de) * | 1979-03-14 | 1980-10-15 | Beckman Instruments, Inc. | Unmittelbarer Antrieb für schnell drehende Ultrazentrifuge |
DE3922639A1 (de) * | 1988-07-18 | 1990-02-01 | Mo N Proizv Ob Biofizpribor | Antrieb fuer zentrifugen |
WO2004089550A1 (en) * | 2003-04-08 | 2004-10-21 | Alfa Laval Corporate Ab | A driving device for a centrifugal separator |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110212820A1 (en) * | 2008-09-22 | 2011-09-01 | Alfa Laval Corporate Ab | Centrifugal separator |
US9079193B2 (en) * | 2008-09-22 | 2015-07-14 | Alfa Laval Corporate Ab | Centrifugal separator having an elastic connection |
US9415400B2 (en) | 2008-09-22 | 2016-08-16 | Alfa Laval Corporate Ab | Centrifugal separator having an elastic connection |
CN107683177A (zh) * | 2015-06-02 | 2018-02-09 | Gea机械设备有限公司 | 分离机 |
WO2019002429A1 (de) | 2017-06-30 | 2019-01-03 | Gea Mechanical Equipment Gmbh | Separator mit direktantrieb |
DE102017114649A1 (de) | 2017-06-30 | 2019-01-03 | Gea Mechanical Equipment Gmbh | Separator mit Direktantrieb |
US11660616B2 (en) | 2017-06-30 | 2023-05-30 | Gea Mechanical Equipment Gmbh | Separator having stackable intermediate members |
Also Published As
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RU2015121635A (ru) | 2017-01-10 |
DE102012110846A1 (de) | 2014-05-15 |
CN104797343A (zh) | 2015-07-22 |
US9981275B2 (en) | 2018-05-29 |
BR112015010479A2 (pt) | 2017-07-11 |
JP2016505352A (ja) | 2016-02-25 |
EP2916961B1 (de) | 2019-10-09 |
KR20150084034A (ko) | 2015-07-21 |
US20150283561A1 (en) | 2015-10-08 |
CA2889766A1 (en) | 2014-05-15 |
AU2013343679B2 (en) | 2018-04-19 |
EP2916961A2 (de) | 2015-09-16 |
WO2014072318A3 (de) | 2014-09-18 |
BR112015010479B1 (pt) | 2021-08-31 |
CA2889766C (en) | 2020-06-02 |
AU2013343679A1 (en) | 2015-05-21 |
SG11201503572QA (en) | 2015-06-29 |
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