EP1158173A2 - Kreiselpumpe mit Magnetkupplung - Google Patents
Kreiselpumpe mit Magnetkupplung Download PDFInfo
- Publication number
- EP1158173A2 EP1158173A2 EP01100290A EP01100290A EP1158173A2 EP 1158173 A2 EP1158173 A2 EP 1158173A2 EP 01100290 A EP01100290 A EP 01100290A EP 01100290 A EP01100290 A EP 01100290A EP 1158173 A2 EP1158173 A2 EP 1158173A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- pump
- rotor
- blades
- magnet rotor
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 10
- 238000010168 coupling process Methods 0.000 title claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000007142 ring opening reaction Methods 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
- F04D13/027—Details of the magnetic circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
- F04D13/026—Details of the bearings
Definitions
- the invention relates to a centrifugal pump with a between the pump shaft and Drive shaft arranged magnetic coupling and with a containment shell in the Magnetic gap between the inner magnet rotor of the pump and the outer one Magnet rotor of the drive shaft, being inside of the fluid flowed through the containment shell of the inner magnet rotor on a tubular Bearing housing is mounted, which surrounds the pump impeller shaft, which on the Fastener for the inner side facing away from the pump impeller Has a magnetic rotor between the bearing housing and the containment shell is arranged.
- Magnetic coupling rotors with radial rear blades are known.
- the Blades are used to generate a flushing or cooling medium flow.
- This radial blades are arranged on the face of the magnetic coupling rotor and generate a flow in the radial direction by passing the medium through Centrifugal force accelerated towards the outside diameter of the rotor and through the Gap between rotor circumference and containment shell is promoted.
- This direction of funding to the outside diameter is contrary to the required flow direction in order the flushing medium flow directly into that positioned in the center of the rotor To initiate rotor bearings.
- Radial blades generally only generate smaller mass flows higher pressures, so that only very small amounts of flushing or cooling medium Are available and the production due to cavitation are interrupted can. When the radial blades are enlarged, more medium becomes available promoted, but the tendency to cavitation also increases. Beyond condition larger radial blades also have higher hydraulic power than Coupling power loss rating and is therefore undesirable.
- the object of the invention is a centrifugal pump of the type mentioned above to improve that with low hydraulic power loss a high Rinsing, cooling and lubricating performance is achieved.
- the Fastening means of the inner magnetic rotor on the shaft or on the Shaft sleeve has at least one flow channel for the conveyed liquid, are arranged in or on the blades for axially conveying the liquid.
- Axial blades are in the inner diameter of a magnetic coupling rotor positioned, which is designed as a rotationally symmetrical hollow body.
- the Buckets are with the rotationally symmetrical hollow body and Magnetic coupling shaft connected.
- One with axial blades Magnetic clutch rotor eliminates the disadvantages mentioned.
- the rotor consists of a cylindrical body, preferably several blades in the inside diameter three pieces - are positioned.
- the blades can be planar or be spatially curved and preferably have a defined angle of attack 5 to 15 °.
- the axial blades convey a larger one Liquid flow at low pressure differences. So there is a lot of cooling or Flushing medium is available and cavitation is reliably avoided.
- the Medium is in the inner diameter of the cylindrical by means of axial blades Body promoted and flows through the positioned in the rotor center Rotor bearing.
- the axial blades connect the rotationally symmetrical Hollow body with the shaft of the rotor and serve in addition to the axial Medium conveyance also the transmission of the rotor torque. Since the Front of the rotor in contrast to known rotors with radial blades is not full circle, but due to the blading one has reduced surface area, the fluid friction of the rotor end face reduced. This makes the compared to radial Bucket designs already have low hydraulic power consumption of the rotor is further reduced.
- the flow channel is from a coaxial Ring opening is formed in which two or more blades are attached.
- the liquid conveyed by the axial blades is preferably removed from the Gap sucked between the output magnets and the containment shell and through the Bearing pressed between the bearing housing and the shaft or the Shaft sleeve are arranged.
- the centrifugal pump 1 with magnetic coupling has one in a pump chamber rotating impeller 2, which is fixed on one end of a shaft 3.
- the Shaft 3 carries a shaft sleeve 12, which by two ceramic radial bearings 4, 5 (with Radial bearing sleeve and radial bearing bush) and two ceramic thrust bearings 6, 7 is mounted, which is attached to the inner wall of a tubular bearing housing 8 are.
- the bearing housing 8 is attached to the wall 11, which is the pump chamber 9 separates from the interior of a containment shell 10, which on the partition 11th is attached.
- the shaft 3 carries at the end facing away from the pump impeller 2 an inner pot-shaped magnet rotor 14.
- a cylindrical coaxial magnetic body 17 in the form of a tubular section is formed, on the outside of the output magnets 18 are attached.
- the bearing housing 8 thus extends coaxially into the magnet rotor 14, wherein an annular space 19 and between the magnetic carrier 17 and the bearing housing 8 there is an annular gap 20 between the magnet carrier 17 and the containment shell 10.
- the containment shell 10 is surrounded by a drive pot, not shown, which carries the drive magnets inside and via a coaxial shaft from one Electric motor is driven.
- a ring-shaped coaxial Flow channel (annular space) 21 is introduced, which is at the level of the annular space 19 and is crossed by two to four radial axial blades 22 which the Hold magnet carrier 17 on floor 16.
- the blades are regular Distances (angles) formed on the floor and magnetic carrier and have one Angle of attack from 5 to 15 degrees.
- the preferably three blades 22 promote through the inlet channels 23 in the Liquid entering the interior of the canned tube from the annular gap 20 into the Gap 24 between the bearing housing 8 and shaft sleeve 12, so that the fluid conveyed thereby through the radial and axial bearings 4 to 7 flows through to then flow back to the pump chamber.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims (3)
- Kreiselpumpe mit einer zwischen Pumpenwelle und Antriebswelle angeordneten Magnetkupplung und mit einem Spalttopf (10) im Magnetspalt zwischen dem inneren Magnetrotor (14) der Pumpe und dem äußeren Magnetrotor der Antriebswelle, wobei im Inneren des von der Förderflüssigkeit durchflossenen Spalttopfes (10) der innere Magnetrotor (14) an einem rohrförmigen Lagergehäuse (8) gelagert ist, das die Pumpenlaufradwelle (3) umgibt, die auf der dem Pumpenlaufrad (2) abgewandten Seite Befestigungsmittel (15) für den inneren Magnetrotor (14) besitzt, der zwischen dem Lagergehäuse (8) und dem Spalttopf (10) angeordnet ist, dadurch gekennzeichnet,dass die Befestigungsmittel des inneren Magnetrotors (14) an der Welle (3) oder an der Wellenhülse (12) mindestens einen Durchflusskanal (21) für die Förderflüssigkeit aufweist, in oder an dem Schaufeln (22) zur axialen Förderung der Flüssigkeit angeordnet sind.
- Kreiselpumpe nach Anspruch 1,dadurch gekennzeichnet, dass der Durchflusskanal (21) von einer koaxialen Ringöffnung gebildet ist, in dem zwei oder mehr Schaufeln (22) befestigt sind.
- Kreiselpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet,dass die von den axialen Schaufeln (22) geförderte Flüssigkeit aus dem Spalt (20) zwischen den Abtriebsmagneten (18) und dem Spalttopf (10) gesogen und durch die Lager (4 - 7) gedrückt wird, die zwischen dem Lagergehäuse (8) und der Welle (3) oder der Wellenhülse (12) angeordnet sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10024955 | 2000-05-22 | ||
| DE10024955A DE10024955A1 (de) | 2000-05-22 | 2000-05-22 | Kreiselpumpe mit Magnetkupplung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1158173A2 true EP1158173A2 (de) | 2001-11-28 |
| EP1158173A3 EP1158173A3 (de) | 2004-03-10 |
| EP1158173B1 EP1158173B1 (de) | 2006-07-05 |
Family
ID=7642886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01100290A Expired - Lifetime EP1158173B1 (de) | 2000-05-22 | 2001-01-04 | Kreiselpumpe mit Magnetkupplung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6457951B2 (de) |
| EP (1) | EP1158173B1 (de) |
| AT (1) | ATE332444T1 (de) |
| DE (2) | DE10024955A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573682A (zh) * | 2012-07-31 | 2014-02-12 | 上海佰诺泵阀有限公司 | 带轴承座的磁力驱动泵 |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6722854B2 (en) * | 2001-01-24 | 2004-04-20 | Sundyne Corporation | Canned pump with ultrasonic bubble detector |
| CA2497056A1 (en) * | 2002-08-31 | 2004-03-11 | Oase Gmbh | Submersible motor-driven pump with an anti-freeze device |
| US8584472B2 (en) * | 2002-11-13 | 2013-11-19 | Deka Products Limited Partnership | Water vapor distillation apparatus, method and system |
| US7183683B2 (en) * | 2005-06-23 | 2007-02-27 | Peopleflo Manufacturing Inc. | Inner magnet of a magnetic coupling |
| US7549205B2 (en) * | 2005-06-24 | 2009-06-23 | Peopleflo Manufacturing Inc. | Assembly and method for pre-stressing a magnetic coupling canister |
| CN101268282B (zh) * | 2005-09-19 | 2013-10-16 | 英格索尔-兰德公司 | 流体压缩系统 |
| US11826681B2 (en) * | 2006-06-30 | 2023-11-28 | Deka Products Limited Partneship | Water vapor distillation apparatus, method and system |
| DE102006040130A1 (de) * | 2006-08-26 | 2008-02-28 | Ksb Aktiengesellschaft | Förderpumpe |
| NO327557B2 (no) * | 2007-10-09 | 2013-02-04 | Aker Subsea As | Beskyttelsessystem for pumper |
| US8496448B2 (en) * | 2010-03-16 | 2013-07-30 | Toyota Motor Engineering & Manufacturing North America, Inc. | Pump assembly |
| CN102146928A (zh) * | 2011-06-03 | 2011-08-10 | 浙江腾宇泵阀设备有限公司 | 磁力泵空载、过载、磁钢滑脱、转子卡磨保护装置 |
| CN102518590A (zh) * | 2011-12-23 | 2012-06-27 | 上海电机学院 | 横向磁场磁力泵 |
| WO2014018896A1 (en) | 2012-07-27 | 2014-01-30 | Deka Products Limited Partnership | Control of conductivity in product water outlet for evaporation apparatus |
| US20140271270A1 (en) * | 2013-03-12 | 2014-09-18 | Geotek Energy, Llc | Magnetically coupled expander pump with axial flow path |
| DE102013007849A1 (de) * | 2013-05-08 | 2014-11-13 | Ksb Aktiengesellschaft | Pumpenanordnung |
| DE102014006568A1 (de) * | 2013-05-08 | 2014-11-13 | Ksb Aktiengesellschaft | Pumpenanordnung und Verfahren zum Herstellen eines Spalttopfes der Pumpenanordnung |
| US9771938B2 (en) | 2014-03-11 | 2017-09-26 | Peopleflo Manufacturing, Inc. | Rotary device having a radial magnetic coupling |
| US9920764B2 (en) | 2015-09-30 | 2018-03-20 | Peopleflo Manufacturing, Inc. | Pump devices |
| DE102016105309A1 (de) | 2016-03-22 | 2017-09-28 | Klaus Union Gmbh & Co. Kg | Magnetkupplungspumpe |
| DE102017206089B4 (de) * | 2017-04-10 | 2020-01-16 | BSH Hausgeräte GmbH | Nassläufer-Pumpe und Haushaltsgerät |
| WO2022129463A1 (de) * | 2020-12-17 | 2022-06-23 | KSB SE & Co. KGaA | Magnetkupplungspumpenanordnung |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1496035A (en) * | 1974-07-18 | 1977-12-21 | Iwaki Co Ltd | Magnetically driven centrifugal pump |
| US4080112A (en) * | 1976-02-03 | 1978-03-21 | March Manufacturing Company | Magnetically-coupled pump |
| JPS6352992U (de) * | 1986-09-25 | 1988-04-09 | ||
| DE3636404A1 (de) * | 1986-10-25 | 1988-04-28 | Richter Chemie Technik Gmbh | Magnetkreiselpumpe |
| DE3943273C2 (de) * | 1989-12-29 | 1996-07-18 | Klaus Union Armaturen | Horizontal angeordnete Kreiselpumpe mit Spaltrohrmagnetkupplung |
| DE4009199A1 (de) * | 1990-03-22 | 1991-09-26 | Rheinhuette Gmbh & Co | Trockenlaufsicherung fuer magnetkupplungspumpen |
| US5288213A (en) * | 1992-06-03 | 1994-02-22 | Pmc Liquiflo Equipment Co., Inc. | Pump having an internal pump |
| US5248245A (en) * | 1992-11-02 | 1993-09-28 | Ingersoll-Dresser Pump Company | Magnetically coupled centrifugal pump with improved casting and lubrication |
-
2000
- 2000-05-22 DE DE10024955A patent/DE10024955A1/de not_active Withdrawn
-
2001
- 2001-01-04 DE DE50110376T patent/DE50110376D1/de not_active Expired - Lifetime
- 2001-01-04 AT AT01100290T patent/ATE332444T1/de not_active IP Right Cessation
- 2001-01-04 EP EP01100290A patent/EP1158173B1/de not_active Expired - Lifetime
- 2001-05-21 US US09/862,432 patent/US6457951B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573682A (zh) * | 2012-07-31 | 2014-02-12 | 上海佰诺泵阀有限公司 | 带轴承座的磁力驱动泵 |
Also Published As
| Publication number | Publication date |
|---|---|
| US6457951B2 (en) | 2002-10-01 |
| ATE332444T1 (de) | 2006-07-15 |
| DE10024955A1 (de) | 2001-11-29 |
| EP1158173A3 (de) | 2004-03-10 |
| DE50110376D1 (de) | 2006-08-17 |
| EP1158173B1 (de) | 2006-07-05 |
| US20010043871A1 (en) | 2001-11-22 |
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