WO2021214294A1 - Separator mit direktantrieb - Google Patents
Separator mit direktantrieb Download PDFInfo
- Publication number
- WO2021214294A1 WO2021214294A1 PCT/EP2021/060665 EP2021060665W WO2021214294A1 WO 2021214294 A1 WO2021214294 A1 WO 2021214294A1 EP 2021060665 W EP2021060665 W EP 2021060665W WO 2021214294 A1 WO2021214294 A1 WO 2021214294A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lubricating oil
- drive
- chamber
- during operation
- separator according
- Prior art date
Links
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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
Definitions
- the invention relates to a separator having the features of the preamble of claim 1 and a method for its operation.
- Such separators which are also suitable for industrial use and which can preferably be used in continuous operation, are known per se from the prior art, for example from the generic DE 10 2017 113 649 A1.
- WO 2004/089550 should also be mentioned in relation to the state of the art, in which the drum, the drive spindle and the electric drive motor are also connected to form a structural unit, which can then be supported as a whole on a drive housing.
- a casing with an inner wall and an outer wall is placed around a housing or a machine frame.
- a space is formed between these walls in which a cooling liquid, e.g. water, can flow.
- the cooling fluid can cool the housing, which is substantially heated by the electric motor during the operation of the centrifugal rotor.
- a connected to the spindle Nes element is also provided.
- the cooling of the known drive devices still appears to be in need of improvement.
- the invention has the task of improving the cooling of the drive device of the generic separator with simple means.
- the invention achieves this object by the subject matter of claim 1. It also achieves this object by the method of claim 16.
- a separator which has the following:
- the rotor is arranged on the drive spindle and the stator is radially spaced from the rotor in a drive housing that does not rotate during operation,
- stator has at least one or more end windings
- At least one chamber is formed on at least one of the end windings, in which a coolant film and / or bath is formed during operation, so that this end winding is cooled with coolant during operation or is cooled during operation.
- one or more of the chambers can be formed on a winding head or on several winding heads.
- one of the winding heads or, if necessary, two winding heads are cooled in a simple manner, preferably directly in a cooling medium film or even cooling bath that is formed on one or more external surfaces during operation.
- the coolant transports heat away from the winding heads.
- the thermal conductivity l of air is 0.0262 W / mK.
- the thermal conductivity l of lubricating oil can be 0.13 to 0.15 W / mK, for example.
- the heat transfer to the surrounding medium is already considerably improved, e.g. by a factor of 5.
- there is the more effective heat dissipation by circulating or preferably circulating the lubricating oil whereas in the prior art, the air surrounding the end winding is essentially at a standstill.
- the coolant is a flowable coolant.
- lubricating oil is used as the coolant, especially since this has to be made available to lubricate one or more bearings on the centrifuge anyway.
- One advantage is that the additional cooling of the winding heads, the motor can be subjected to higher loads without the motor temperature rising above a permissible value. The cooling is more effective and the power density is therefore high.
- the lubricating oil is used on the one hand to lubricate one or more bearings of the drive spindle and on the other hand to cool the one or more end windings.
- the electric drive motor can e.g. be an asynchronous motor or a synchronous motor - e.g. a reluctance motor.
- One advantage is that the existing lubricating oil, which is used to lubricate the roller bearings, is now also used to cool the motor or the winding heads. This means that the machine does not need any additional units and no additional cooling media such as water.
- the combination of direct heat dissipation from the motor stator - for example on cooling fins, and heat dissipation from the end windings via the flow of lubricating oil to the cooling fins is therefore particularly effective.
- the drive motor can preferably lie completely between a neck bearing and a foot bearing.
- the one winding head is an upper winding head and the other winding head is a lower winding head and on the upper and / or on the lower winding head is or are each formed from one of the chambers. If oil cooling chambers are formed on each of the two winding heads, who can effectively and easily cool the two winding heads.
- the respective Kam mer on the respective winding head is designed as an annular chamber, which is formed at the top, outside and / or bottom of the respective winding head, so that accordingly an upper, an outer and / or a lower surface of the respective winding head is covered by a lubricating oil film during operation and is well cooled.
- the respective chamber has an inlet and an outlet, wherein the outlet can also be designed as an overflow.
- one or both chambers is / are or will / will be completely filled with the oil bath during operation. Inflow and outflow then designed accordingly and coordinated with the oil flow that one or both chambers fill up. In this way, particularly good cooling and lubrication is achieved or can be implemented in the area of the respective chamber (s).
- a one-part or multi-part motor housing is formed in the drive housing and holds the stator.
- the chambers can then be formed between the motor housing and the stator and these elements can be provided as a pre-assembled unit that can be mounted on the drive housing.
- the drive housing and / or the motor housing have cooling ribs.
- the drive housing and / or the motor housing has one or more cooling channels through which lubricating oil flows from one or both chambers. The thermal energy of the lubricating oil is then released to the environment by means of the cooling fins. In this way, the heat absorbed by the lubricating oil in the chambers is completely or partially released back to the environment by convection.
- the respective chamber on the respective winding head has an I-, L- or U-shaped cross section.
- the respective chamber is formed between elements and / or sections of the motor housing and the respective winding head.
- the preassembled drive and rotation system unit has a closed lubrication system circuit.
- the drive spindle is axially penetrated by a bore, the drive spindle dipping into a lubricating oil sump in the drive housing, with lubricating oil in the area of a neck bearing and / or in the through the drilling of the drive spindle Area of a supply line to the chamber is promoted at the upper end winding.
- lubricating oil which flows out of the first chamber on the upper end winding, through cooling channels in the drive housing and / or in the motor housing into the second Chamber is directed at the lower end winding, from where it is directed back into the lube oil sump.
- the invention also provides a method for cooling a drive motor of a separator, with the following steps: Providing a separator - in particular according to one of the embodiments described above as according to the invention - and filling and flowing through the one or more chambers with lubricating oil during operation.
- the cooling system (preferably exclusively) provided is air cooling, which comprises cooling fins on the outer circumference of the drive housing.
- FIG. 1 shows a sectional view of a schematically illustrated separator according to the invention
- FIG. 2 is a perspective view of a further Se parators according to the invention.
- FIG. 3a, b in a) a first upper detail enlargement from FIG. 1 and in b) a second lower detail enlargement from FIG. 1, in which a flow path for a coolant is shown with arrows and hatching.
- Fig. 1 shows a separator 1, which has a non-rotating or stationary system during operation and a system that rotates or rotates during operation relative to the stationary Sys tem.
- the rotating system and the stationary system each have a plurality of elements.
- the rotating system of the separator has a drum 2 with a vertical axis of rotation D.
- This drum 2 is only shown schematically here. It can be designed in various ways. It is preferably designed for continuous operation for the continuous clarification and / or separation of a flowable product into one or two liquid phases and possibly a solid phase - in particular in an industrial process. In addition, its interior space is preferably provided with a stack of separating plates (not visible or shown here).
- the drum 2 which is preferably single or double conical, is placed on the upper end of a rotatable drive spindle 3, which is vertical here.
- the drive spindle can be oriented vertically or essentially vertically during operation and have a vertical axis of rotation D.
- the drum 2 can have an inlet and at least two outlets for the phases of the product or mixture of substances to be processed which are separated in the centrifugal field.
- the drive spindle 3 is rotatably supported by a bearing arrangement, which here has a neck bearing 4 and a foot bearing 5.
- the neck bearing 4 is arranged in a bearing housing 6 - preferably radially elastically supported.
- an elastic element such as an elastic ring can be arranged between the inner circumference of the bearing housing 6 and the outer circumference of the neck bearing 4 (not shown here).
- the bearing housing 6 does not rotate and is therefore part of the system that is idle during operation.
- the bearing housing 6 can be placed on a one-part or multi-part motor housing 7, 8.
- the motor housing can consist of several sections. In particular, it can have a motor housing cover ring 7 which is placed on the lower motor housing 8.
- the bearing housing 6, possibly the motor housing cover ring 7 and the motor housing 8 can each have an annular flange section 6a, 7a and 8a on their outer circumference. These annular flange sections 6a, 7a, 8a can each be stacked axially one above the other. You can - for example with axial screws not shown here - be joined together or joined together to form a modular unit. Together they can form an annular flange section of a preassembled and here also preassembled drive and rotation system unit.
- a drive motor 10 is net angeord, which is an electric motor.
- the foot bearing 5 can also be formed or arranged there.
- the drive motor 10 has a stator 20 and a rotor 21.
- the stator 20 is fixed here directly or indirectly in or on the drive housing 11. It does not turn during operation.
- the rotor 21 can be connected to the drive spindle 3 in a rotationally fixed manner.
- the system with the bearing housing 6, possibly the motor housing cover ring 7 and the one-part or multi-part motor housing 8 can form a preassembled drive and rotating system unit in the manner of a replaceable cassette that can be assembled as a whole.
- This preassembled drive and rotation system unit is also referred to below as a preassembled unit for short.
- This preassembled unit can also have the drum 2. This structure is advantageous in this respect, but not necessarily to be implemented in exactly the same way in order to implement the invention.
- the motor housing 8 is inserted into a drive housing 11 and held there.
- This drive housing 11 can be designed in the manner of a motor housing 8 surrounding the outer housing. But it can also be designed as a frame.
- the drive housing 11 can, for example, be attached to a substrate such as a hall floor or the like.
- cooling fins 12 can be formed in order to be able to give off or radiate waste heat from the drive system into the surrounding area in a simple manner.
- the drive housing 11 has an annular flange 11a on its inner circumference.
- the preassembled drive and rotary system can be attached to this annular flange 11a.
- the outer ring flange section of the preassembled drive and rotation system unit can rest on the inner ring flange 11a of the drive housing 11, as shown, or, in an alternative embodiment, hang below it.
- the preassembled unit and its annular flange section are preferably fastened to the annular flange 11a of the drive housing 11 with at least one or more fastening means, in particular one or more screw bolts, in particular screwed (not shown here).
- a hood 9, which does not rotate during operation and which surrounds the drum 2, can also be attached to the drive housing 11.
- an air cooling system can be used, implemented by the cooling fins 12. This is advantageous and simple.
- liquid cooling in addition or as an alternative.
- a corresponding liquid cooling system is denoted below with the reference symbol 100.
- a lubricant circulation system is advantageously used for liquid cooling of the engine 10. It is particularly advantageous to use, or at least also to use, a lubricant circulation system that also serves to lubricate at least one of the bearings 4, 5 with lubricant.
- the lubricant circulation system can be constructed as follows:
- a lubricant feed device is used to supply the bearings 4, 5 with lubricant.
- This lubricant feed line can be implemented in various ways.
- the drive spindle 3 can be axially penetrated by a bore 101, the drive spindle 3 dipping into a lubricating oil sump 102 at the bottom of the drive housing 11 (whose upper lubricant level is indicated by a dash-dotted line).
- a lubricating oil sump 102 at the bottom of the drive housing 11 (whose upper lubricant level is indicated by a dash-dotted line).
- the bore 101 in the drive spindle 3 serves as the lubricant supply line here.
- the lubricating oil in the rotating system can radially outward through one or more radially extending transverse bores 103 until it emerges from the transverse bore 103 of the Drive spindle 3 exits into a stationary annular space outside the drive spindle 3 (see also Fig. 3a).
- the lubricating oil emerging from the drive spindle 3 encounters stationary components located radially outside of the drive spindle 3, such as the motor housing cover ring 7 and / or the motor housing 8.
- the neck bearing 4 can be lubricated by a lubricating oil mist occurring during operation will.
- the foot bearing 5 can be arranged in the lubricating oil sump and thereby lubricated. But it can also lie above the lubricating oil sump and be lubricated when the lubricating oil flows back into the lubricating oil sump.
- the cooling of the stator 20 fixed in the drive housing is optimized.
- the stator 20 has upper and lower end windings 20a and 20b and a coil pack 20c. It is constructed as a kind of ring element, the coil pack being located centrally between the upper and lower winding heads 20a, 20b.
- At least one chamber K1, K2 is formed on the stator 20, in particular on the upper and / or lower end winding 20a, 20b, which is filled with lubricating oil during operation, so that at least part of the outer surface of the respective end winding 20a and / or 20b lies in a lubricating oil bath or is covered by a lubricating oil film during operation.
- the respective chamber K1 is designed in such a way that it has an inlet and an outlet.
- the inlet and the outlet are designed in such a way that the respective chamber K1 and / or K2 is preferably completely filled with lubricating oil during operation.
- One of the chambers K1, K2 can advantageously be formed both on the upper winding head 20a and on the lower winding head 20b.
- the chambers K1 and / or K2 are preferably designed as annular chambers which extend radially on the outside and optionally above and / or below on and around the respective end winding 20a and / or 20b.
- At least one drainage channel (which can branch into several cooling channels) from at least one of the chambers K1, K2 through the drive housing and / or the motor housing in the area of the cooling fins 12 leads to the heat absorbed by the lubricating oil the respective Kam mer K1 and / or K2 to be able to radiate from there via the cooling fins to the environment.
- this is advantageous - but not mandatory - implemented as follows.
- the motor housing cover ring 7 is located here. Radially outside half of the stator 20, the motor housing 8 is in turn arranged (which is preferably also ring-shaped). This can - in one piece or in several pieces - extend down to the lubricating oil sump 102.
- the motor housing cover ring 7 has an inwardly open annular chamber 71. In this annular chamber 71 collects part of the radially exiting lubricating oil from the drive spindle 3.
- the motor housing cover ring 7 can also have an inlet channel 72 with which lubricating oil is guided from the annular chamber 71 into the chamber K1, which is formed radially on the outside as an annular chamber between the end winding 20a and adjacent elements of the motor housing.
- the chamber K1 fills with lubricating oil during operation.
- the chamber K1 can be designed as an annular chamber.
- the chamber K1 can also have an I, L or preferably U-shaped cross section. It is preferred if the chamber K1 is designed in such a way (in particular with regard to the volume of the chamber K1 and with regard to the amount of oil flowing through) that the lubricating oil does not heat up by more or less than 20 ° K when it flows through the chamber K1 during operation. In this way, excessive heating in the areas around the chamber K1 can be avoided very well.
- FIG 3a illustrates how, during operation, chamber K1 is filled with lubricating oil by lubricating oil running through channel 72.
- This lubricating oil cools the upper winding head 20a on one, two or even three of its sides. These are in particular the upper side, the lower side and the radially outer side of the upper end winding 20a.
- a drain channel 73 can emerge from the chamber K1. This leads here (optionally first upwards and then) radially outwards into a cooling channel 74 (or merges into one), which is guided through the drive housing and / or the motor housing provided with one or more of the cooling fins 12 so that part of the heat or all of the heat that has been absorbed by the lubricating oil in the chamber K1 on the upper end winding 20a can be radiated again via one or more cooling fins 12.
- the cooling channel 74 in turn merges into a (here radially inwardly leading) to flow channel 75, which opens into the second chamber K2 at the lower end winding 20b.
- the lower end winding 20b is also surrounded by lubricating oil in this chamber K2 radially on the outside and / or above and / or below on one, two or three sides of a chamber K2.
- Chamber K2 can also be designed as an annular chamber. be designed.
- the chamber K2 can also have an I, L or U-shaped cross section.
- FIG. 3b illustrates how, during operation, chamber K2 is filled with lubricating oil by lubricating oil running through channel 75.
- This lubricating oil cools the lower winding head 20b on one, two or even three of its sides. These are in particular the upper side, the lower side and the radially outer side of the lower end winding 20b.
- the chamber K2 between the lower end winding 20b and the motor housing 8 is also filled with lubricating oil as lubricating oil continues to flow from the sump into the chamber K1 and ensures cooling of the lower winding end 20b.
- the lubricating oil can flow from the lower chamber K2 through another channel 76 downward in the direction of the lubricating oil sump 102, in which it finally flows in.
- the design of the chamber K2 - in particular the volume and the flow rate of the lubricating oil during operation - should preferably be selected so that the lubricating oil does not heat up by more than or preferably less than 20 ° K when flowing through the chamber K2. Because with such a design, overheating in the area around this chamber K2 can be prevented particularly reliably.
- the lubricating oil additionally flows specifically past the stator 20 and in particular one or both end windings 20a, 20b in such a way that the lubricating oil actively cools one or preferably both of the end windings 20a, 20b with a certain flow and film of lubricant.
- the winding heads are cooled in that there is preferably a type of lubricating oil bath in the chambers K1, K2, the lubricating oil of which, however, is repeatedly replaced by the lubricating oil flowing in.
- the two winding heads 20a, 20b can have an approximately rectangular basic shape in cross section.
- an inner side of the stator 20 can be spaced apart from the drive spindle 3 and the rotor 21 by an annular space.
- no additional lubricant flow is realized, at least none that goes beyond the cooling effect that the lubricating oil flowing from the neck bearing to the foot bearing exerts in this annular space.
- the upper and / or lower end winding are framed by the drive housing or components on the drive housing in such a way that they form the one or more chambers K1, K2, in particular annular chambers, on one, two or preferably even three of its sides.
- the motor housing cover ring 7 arranged above the stator is designed in such a way that it guides lubricating oil through the channel 72 into the first chamber K1, which here surrounds the upper end winding on three sides.
- This chamber K1 fills with lubricating oil during operation.
- the overflowing lubricating oil flows through a further channel 74 in the direction of the further chamber K2, which surrounds the lower end winding 20b on one, two or three sides.
- the drainage channel 76 finally leads back into the lubricating oil sump like a drilling or a channel.
- one or more channels and / or chambers K1, K2 are formed between the stator 20 and one or more adjacent components of the drive housing 11, which here include the motor housing cover ring 7 and the motor housing 8 fill completely or partially with lubricating oil during operation, whereby a lubricating oil flow is also created in order to actively cool the stator, in particular its one or both winding heads 20a, 20b, as directly as possible by directly flowing over at least one surface area of winding heads 20a, 20b with lubricating oil.
- the invention can be implemented in various ways. In Fig. 1 as well as 3a and 3b this has been done advantageously. Of course, it is also possible to implement the invention differently in other structural configurations.
- the lubricating oil flows into the annular chambers K1 and K2, or at least part of the lubricating oil flows out of the drive spindle 3 below the neck bearing.
- the lubricating oil is preferably guided in a targeted manner over one or both winding heads 20a, 20b, it being further preferred that one or both of the end windings 20a, 20b are partially immersed in a lubricating oil bath during operation.
- the overflow can be designed in such a way that the lubricating oil level in the upper chamber K1 always completely surrounds the upper end winding 20a. As a result of the immersion, the heat generated by the ohmic losses in the upper end winding 20a is better dissipated.
- the overflowing lubricating oil can then or while flowing through one or moredeka channels 74 in the drive housing and / or the motor housing, and so through the cooling fins 12 of the drive housing 11 in a simple manner give off heat to the environment.
- the cooled lubricating oil then runs into a similar chamber K2, which surrounds the lower end winding 20b.
- the sequence from this can in turn be designed in such a way that the lubricating oil level in the container always completely surrounds the end winding. This can be done, for example, through a suitable screen in the outlet of the container or through a suitable cross-section of the outlet channel 76.
- the two end windings 20a, 20b of the integrated motor are actively cooled by the lubricating oil flowing back.
- part of the heat loss from the end windings is absorbed and conducted away by the flowing lubricating oil; on the other hand, part of the heat loss from the end windings is conducted to the surrounding separator housing by the lubricating oil in the chambers around the end windings.
- the chambers around the winding head should be filled with lubricating oil.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020227039897A KR20230008103A (ko) | 2020-04-24 | 2021-04-23 | 직접 구동장치가 구비된 분리기 |
US17/920,433 US20230173509A1 (en) | 2020-04-24 | 2021-04-23 | Separator having direct drive |
CN202180027960.5A CN115485953A (zh) | 2020-04-24 | 2021-04-23 | 具有直接驱动装置的分离机 |
EP21721075.6A EP4140019A1 (de) | 2020-04-24 | 2021-04-23 | Separator mit direktantrieb |
JP2022549482A JP2023522543A (ja) | 2020-04-24 | 2021-04-23 | ダイレクトドライブを有するセパレータ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020111217.3A DE102020111217A1 (de) | 2020-04-24 | 2020-04-24 | Separator mit Direktantrieb |
DE102020111217.3 | 2020-04-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021214294A1 true WO2021214294A1 (de) | 2021-10-28 |
Family
ID=75660043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/060665 WO2021214294A1 (de) | 2020-04-24 | 2021-04-23 | Separator mit direktantrieb |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230173509A1 (de) |
EP (1) | EP4140019A1 (de) |
JP (1) | JP2023522543A (de) |
KR (1) | KR20230008103A (de) |
CN (1) | CN115485953A (de) |
DE (1) | DE102020111217A1 (de) |
WO (1) | WO2021214294A1 (de) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB368247A (en) | 1929-08-31 | 1932-03-03 | Gen Electric | Improvements in and relating to methods of mounting high speed shafts |
DE1057979B (de) | 1956-02-26 | 1959-05-21 | Clemens A Voigt | Elastische Lagerung fuer schnell rotierende Wellen, insbesondere Zentrifugenwellen |
FR1287551A (fr) | 1961-02-02 | 1962-03-16 | Garin Ets | Appareil tel qu'écrémeuse |
EP0290606A1 (de) * | 1986-11-20 | 1988-11-17 | Moskovskoe Nauchno-Proizvodstvennoe Obiedinenie 'biofizpribor' | Zentrifuge |
DE4314440C1 (de) | 1993-05-03 | 1994-06-16 | Kyffhaeuser Maschf Artern Gmbh | Zentrifugalseparator mit Schwerstanlauf |
JPH07279975A (ja) * | 1994-04-08 | 1995-10-27 | Hitachi Koki Co Ltd | 軸受潤滑および冷却装置 |
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DD248968A1 (de) | 1986-05-14 | 1987-08-26 | Kyffhaeuserhuette Maschf | Leistungselektronischer antrieb fuer zentrifugalseparatoren |
DE3635297C1 (de) | 1986-10-16 | 1993-03-25 | Klaus Walzel | Aussenlaeufermotor |
DE202005021025U1 (de) | 2004-03-18 | 2006-12-28 | Baumüller Nürnberg GmbH | Gekühlte elektrodynamische Maschine mit einem Spaltrohr |
DE102017114649A1 (de) | 2017-06-30 | 2019-01-03 | Gea Mechanical Equipment Gmbh | Separator mit Direktantrieb |
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2020
- 2020-04-24 DE DE102020111217.3A patent/DE102020111217A1/de active Pending
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2021
- 2021-04-23 CN CN202180027960.5A patent/CN115485953A/zh active Pending
- 2021-04-23 EP EP21721075.6A patent/EP4140019A1/de active Pending
- 2021-04-23 US US17/920,433 patent/US20230173509A1/en active Pending
- 2021-04-23 KR KR1020227039897A patent/KR20230008103A/ko active Search and Examination
- 2021-04-23 JP JP2022549482A patent/JP2023522543A/ja active Pending
- 2021-04-23 WO PCT/EP2021/060665 patent/WO2021214294A1/de unknown
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FR1287551A (fr) | 1961-02-02 | 1962-03-16 | Garin Ets | Appareil tel qu'écrémeuse |
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DE4314440C1 (de) | 1993-05-03 | 1994-06-16 | Kyffhaeuser Maschf Artern Gmbh | Zentrifugalseparator mit Schwerstanlauf |
JPH07279975A (ja) * | 1994-04-08 | 1995-10-27 | Hitachi Koki Co Ltd | 軸受潤滑および冷却装置 |
WO2004089550A1 (en) | 2003-04-08 | 2004-10-21 | Alfa Laval Corporate Ab | A driving device for a centrifugal separator |
JP2010124658A (ja) * | 2008-11-21 | 2010-06-03 | Toyota Motor Corp | 回転電機 |
US20130038151A1 (en) * | 2010-04-23 | 2013-02-14 | Ihi Corporation | Rotary machine |
US20180205294A1 (en) * | 2015-07-28 | 2018-07-19 | Nissan Motor Co., Ltd. | Cooling structure for dynamo-electric machine |
DE102017113649A1 (de) | 2017-06-21 | 2018-12-27 | Schaeffler Technologies AG & Co. KG | Drahtkäfig |
Also Published As
Publication number | Publication date |
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CN115485953A (zh) | 2022-12-16 |
JP2023522543A (ja) | 2023-05-31 |
EP4140019A1 (de) | 2023-03-01 |
US20230173509A1 (en) | 2023-06-08 |
KR20230008103A (ko) | 2023-01-13 |
DE102020111217A1 (de) | 2021-10-28 |
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