EP2233744A2 - Motopompe centrifuge - Google Patents
Motopompe centrifuge Download PDFInfo
- Publication number
- EP2233744A2 EP2233744A2 EP10000677A EP10000677A EP2233744A2 EP 2233744 A2 EP2233744 A2 EP 2233744A2 EP 10000677 A EP10000677 A EP 10000677A EP 10000677 A EP10000677 A EP 10000677A EP 2233744 A2 EP2233744 A2 EP 2233744A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- motor
- centrifugal motor
- flexible
- decoupling
- 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
- 229920001971 elastomer Polymers 0.000 claims abstract description 5
- 229920002457 flexible plastic Polymers 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 7
- 238000004382 potting Methods 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007789 sealing 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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
-
- 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
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
- F04D13/0626—Details of the can
-
- 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
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
- F04D13/064—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
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
- F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
- F05D2300/518—Ductility
Definitions
- the invention relates to a centrifugal motor pump in wet rotor design with a surrounding the electric motor rotor containment shell or can.
- centrifugal motor pumps in which the motor rotor is surrounded by a split pot or can, so that the rotor is cooled by the fluid flowing around. Furthermore, by the non-prepublished German patent application ( 102008055613.0 ) proposed to form the pump chamber through the split tube.
- the object of the invention is to improve a centrifugal motor pump of the type mentioned so that with high noise insulation safe seals are achieved.
- This object is achieved in that the containment shell or the can is guided so far to the pump impeller that he / she surrounds the pump impeller and the wall of the particular spiral pump chamber completely or partially, and that the area of the pump chamber wall facing the pump inlet is connected to the edge of the pump inlet opening and / or the pump outlet opening and flexible in order, as a decoupling element, to limit movements of the containment shell or can with respect to the pump housing.
- a sealing membrane is combined with the function of a decoupling element.
- this component serves as a part of the spiral space and seals it against the second part of the spiral space.
- the vibratory mounted pump has a canned / containment shell with at least partially formed spiral space.
- the pump is vibration-decoupled / damped by means of vibration elements with respect to a rigid outer casing.
- the spiral space formed on the gap tube is closed by means of an elastic component on the inlet and outlet side.
- the closing component includes parts of the spiral contour and possibly the geometry of the inlet and outlet sides.
- the component in the center has a possibly concentrically shaped membrane, which seals against the inlet side of the rigid connection housing. If necessary, this membrane can be designed such that it assumes the function of a vibration-reducing decoupling element. Due to the elastic design and the tongue of the spiral contour is elastic, resulting in the reduction of blade vibrations.
- a centrifugal motor pump is shown in Navyssenrbauart.
- the can 1 is closed at both ends in each case by a bearing plate 6a, 6b, in whose bearings 7 the motor shaft 4 is mounted, which carries the pump impeller 9 at one end.
- Return ring 2 and windings 3 are encased by a potting material 10 made of elastic plastic, in particular an elastomer, so that the stator with its potting material 10 forms a unit from which the motor shaft 4 exits into the pump chamber 11 in order to carry there the pump impeller 9.
- a potting material 10 made of elastic plastic, in particular an elastomer, so that the stator with its potting material 10 forms a unit from which the motor shaft 4 exits into the pump chamber 11 in order to carry there the pump impeller 9.
- the motor stator is surrounded by an outer motor housing 12 at a distance such that there is an intermediate space 13 between the stator and the housing 12.
- the intermediate space 13 is bridged by the potting material 10 as a vibration damper in particular as a spring element which decouples the stator relative to the motor housing 12 and thus ensures that vibrations generated by the stator or rotor 5 are not transmitted to the motor housing 12 substantially.
- the can 1 also forms the pump chamber 11 and also the pump spiral space.
- the can 1 (which may also be formed by a split pot) extends far into the pump area or into the pump housing, projects beyond and surrounds the pump impeller 9 and at the same time forms the suction opening / pump inlet opening 20 with the suction nozzle and the pressure opening / pump outlet opening 21 with the discharge nozzle.
- the relatively rigid plastic material of the can 1 is not guided to the inlet and outlet ports 20, 21, but it ends earlier and it is attached to this material, a second wall-shaped decoupling element 23 attached / attached from flexible plastic, up to the openings 20, 21 is guided and at least at the pump inlet opening is secured sealed all around, so that a limited mobility of the can 1 with respect to the pump housing 22 and the openings 20, 21 is given.
- the decoupling element 23 has a membrane 24, by which a high degree of flexibility is ensured.
- the material of the decoupling element 23 itself may be less flexible.
- the winding 3 is electrically connected via a coil wire 18 and a liquid-tight contact 19.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009014639A DE102009014639A1 (de) | 2009-03-24 | 2009-03-24 | Kreiselmotorpumpe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2233744A2 true EP2233744A2 (fr) | 2010-09-29 |
EP2233744A3 EP2233744A3 (fr) | 2012-10-17 |
EP2233744B1 EP2233744B1 (fr) | 2014-02-19 |
Family
ID=41716348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10000677.4A Active EP2233744B1 (fr) | 2009-03-24 | 2010-01-23 | Motopompe centrifuge |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2233744B1 (fr) |
DE (1) | DE102009014639A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102748323A (zh) * | 2012-06-29 | 2012-10-24 | 江苏国泉泵业制造有限公司 | 一种高比转数螺旋离心泵 |
WO2014014898A1 (fr) * | 2012-07-16 | 2014-01-23 | Magna Powertrain Of America, Inc. | Pompe à eau électrique à gaine comprenant une gaine structurale et un boîtier externe en caoutchouc |
EP3025627A1 (fr) * | 2014-11-24 | 2016-06-01 | Whirlpool Corporation | Ensembles de drain de lave-vaisselle à volutes surmoulées |
CN108980097A (zh) * | 2018-09-20 | 2018-12-11 | 合肥恒大江海泵业股份有限公司 | 一种污水泵叶轮防松动装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2312848A (en) * | 1941-01-07 | 1943-03-02 | Albert R Pezzillo | Motor driven pump unit |
DE1812973U (de) * | 1960-04-14 | 1960-06-09 | Poul Due Jensen | Kreiselpumpe. |
FR2389784B1 (fr) * | 1977-05-06 | 1984-02-24 | Siebec Filtres | |
DE8702051U1 (de) * | 1987-02-11 | 1988-06-16 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zu einer Brennkraftmaschine, insbesondere eines Kraftfahrzeuges |
JPH10311290A (ja) * | 1997-05-13 | 1998-11-24 | Japan Servo Co Ltd | キャンドモータポンプとその製造方法 |
JP4250783B2 (ja) * | 1998-04-09 | 2009-04-08 | パナソニック電工株式会社 | 電磁駆動ポンプ |
JP2001099090A (ja) * | 1999-10-04 | 2001-04-10 | Matsushita Electric Ind Co Ltd | ポンプ |
DE102007040461A1 (de) * | 2007-08-28 | 2009-03-05 | Wilo Ag | Kreiselmotorpumpe |
DE102008055613A1 (de) | 2008-11-03 | 2010-05-06 | Wilo Se | Kreiselmotorpumpe |
DE102008055614A1 (de) | 2008-11-03 | 2010-05-06 | Wilo Se | Kreiselmotorpumpe |
-
2009
- 2009-03-24 DE DE102009014639A patent/DE102009014639A1/de not_active Withdrawn
-
2010
- 2010-01-23 EP EP10000677.4A patent/EP2233744B1/fr active Active
Non-Patent Citations (1)
Title |
---|
None |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102748323A (zh) * | 2012-06-29 | 2012-10-24 | 江苏国泉泵业制造有限公司 | 一种高比转数螺旋离心泵 |
WO2014014898A1 (fr) * | 2012-07-16 | 2014-01-23 | Magna Powertrain Of America, Inc. | Pompe à eau électrique à gaine comprenant une gaine structurale et un boîtier externe en caoutchouc |
US9360015B2 (en) | 2012-07-16 | 2016-06-07 | Magna Powertrain Of America, Inc. | Submerged rotor electric water pump with structural wetsleeve |
EP3025627A1 (fr) * | 2014-11-24 | 2016-06-01 | Whirlpool Corporation | Ensembles de drain de lave-vaisselle à volutes surmoulées |
US10064537B2 (en) | 2014-11-24 | 2018-09-04 | Whirlpool Corporation | Dishwasher drain assemblies having overmolded volutes |
US10799084B2 (en) | 2014-11-24 | 2020-10-13 | Whirlpool Corporation | Dishwasher drain assemblies having overmolded volutes |
CN108980097A (zh) * | 2018-09-20 | 2018-12-11 | 合肥恒大江海泵业股份有限公司 | 一种污水泵叶轮防松动装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2233744A3 (fr) | 2012-10-17 |
DE102009014639A1 (de) | 2010-09-30 |
EP2233744B1 (fr) | 2014-02-19 |
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