EP0522324B1 - Dispositif de pompage constitué d'une machine à écoulement et d'un moteur - Google Patents

Dispositif de pompage constitué d'une machine à écoulement et d'un moteur Download PDF

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Publication number
EP0522324B1
EP0522324B1 EP92110180A EP92110180A EP0522324B1 EP 0522324 B1 EP0522324 B1 EP 0522324B1 EP 92110180 A EP92110180 A EP 92110180A EP 92110180 A EP92110180 A EP 92110180A EP 0522324 B1 EP0522324 B1 EP 0522324B1
Authority
EP
European Patent Office
Prior art keywords
housing
bayonet
annular body
flow
drive motor
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
EP92110180A
Other languages
German (de)
English (en)
Other versions
EP0522324B2 (fr
EP0522324A1 (fr
Inventor
Niels Due Jensen
Kurt Frank Nielsen
Kurt B. Espensen
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.)
Grundfos AS
Original Assignee
Grundfos AS
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
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Application filed by Grundfos AS filed Critical Grundfos AS
Publication of EP0522324A1 publication Critical patent/EP0522324A1/fr
Application granted granted Critical
Publication of EP0522324B1 publication Critical patent/EP0522324B1/fr
Publication of EP0522324B2 publication Critical patent/EP0522324B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers 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
    • 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
    • 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
    • F04D29/086—Sealings 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps 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
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/33—Retaining components in desired mutual position with a bayonet coupling

Definitions

  • the invention relates to a conveyor unit according to the preamble of claim 1.
  • Such a conveyor unit is described in DE-PS 32 20 448.
  • the bearing plate for the front shaft bearing of the drive motor is welded to its split tube, which is designed as a radial flange in this area and is in turn firmly connected to the motor housing.
  • the housing of the fluid flow machine in the form of a centrifugal pump is also permanently connected to the flange of the can.
  • DE-PS 36 09 311 describes a similar delivery unit designed as a submersible pump.
  • the bearing plate for the front shaft bearing of the drive motor is screwed on the one hand with an end cover and on the other hand with an outer unit housing which surrounds the encapsulated stator of the drive motor to form a flow annulus with a radial distance.
  • the end cover serves as a partition to the pump chamber, has a flow passage and at the same time forms a peripheral wall for the connected centrifugal pump.
  • Two further covers form the outer end of the centrifugal pump, all of the covers mentioned being connected to the unit housing by a large number of screws.
  • the object of the invention is to improve a conveyor unit of the type mentioned in the introduction so that the conveyor unit can be dismantled and reassembled by untrained personnel without the use of screwing tools for maintenance purposes and that the conveyor unit is structurally simplified and can be produced at lower production costs.
  • the conveyor unit according to the invention can be dismantled and reassembled by untrained users. No screw parts can be lost and incorrect reassembly is also impossible. Removing and inserting the so-called running gear, i.e. the motor rotor together with the impeller and the front end shield, for cleaning purposes is easy and quick, since the bayonet connection of the parts in question can be easily detached by manually rotating the component groups to be disassembled and reassembled can be put together again.
  • running gear i.e. the motor rotor together with the impeller and the front end shield
  • the conveyor unit is structurally simpler, because when using sheet metal parts, special hubs or equivalent components must be provided for the threaded holes so that the screws have a firm hold. Furthermore, since the ring body according to the invention with the proportionate bayonet designs can be produced in a space-saving and simple manner, the conveyor unit according to the invention can be manufactured overall at considerably cheaper costs.
  • the invention can be used particularly advantageously in centrifugal pumps, in particular in fountain and drainage pumps.
  • fans and blowers can also be provided instead of the centrifugal pumps.
  • the 1 shows a delivery unit, generally designated 1, which is composed of a fluid flow machine in the form of a centrifugal pump 2 and an electric drive motor 3.
  • the pump 2 consists of a housing 4 and one or more impellers 5.
  • the impeller or impellers are fastened on a shaft 6 of the motor 3, the shaft being held in a bearing plate 8 via a front slide bearing 7, which in turn is partly in one Canned can pot 9 of the motor 3 engages.
  • the rear end of the shaft 6 is mounted in a slide bearing in a known manner, this bearing being held on the canned pot (not shown).
  • the canned pot 9 has a radial flange 10, the outer circumferential end of which is provided with a crank 11 and is connected to a housing 12 of the electric motor 3.
  • a one-piece ring body 13 in the form of an essentially flat sheet metal part is firmly connected, e.g. by welding points 14a provided in an annular zone 14, as indicated in FIG. 3.
  • the ring body 13 is also equipped with a crank 15 in the region of its inner circumference. Exceptional spaces are formed by the cranks 11 and 15, as will become clear.
  • the ring body 13 has a proportionate bayonet formation 16 and 17 on both its inner circumference and on its outer circumference.
  • the corresponding other proportionate bayonet designs 18 and 19 are provided on the end shield 8 and on the pump housing 4, respectively.
  • FIGS. 2 and 3 When looking at FIGS. 2 and 3, one can clearly see how the respective bayonet designs 16, 18 and 17, 19 interact in pairs. In this way, the bearing plate 8 and the pump housing 4 are releasably attached to the motor housing 12 by means of the ring body 13.
  • FIG. 1 it is easy to see how disassembly and reassembly of the conveyor unit 1 can be carried out for the purpose of cleaning it.
  • the motor housing 12 is then held in place and then the bearing plate 8 is grasped and rotated on schematically indicated handles 8a, so that the inner bayonet connection 16, 18 is released. It can then be used as a unit, the entire running machine, i.e. the shaft 6 together with the impeller 5 and the rotor (not shown) of the motor 3 are pulled out of the rest of the motor 3.
  • the cleaning process then takes place.
  • all aggregate groups are reassembled in reverse order.
  • the procedure can be such that they are additionally provided with latching means, which are schematically indicated by 20 in FIG.
  • latching means can consist of small projections on the bayonet parts 16 and corresponding depressions in the associated bayonet parts 18.
  • such locking means can also be provided on all other bayonet parts; however, they are not shown for reasons of space.
  • a motor 22 with a housing 23, a centrifugal pump 24 and an aggregate housing 25 which is provided at a radial distance from the motor housing 23.
  • An annular space 26 is thereby formed, which is fed by the pump 24.
  • an inlet housing 27 is removably attached below.
  • Such a delivery unit is used as a submersible pump for drainage purposes and e.g. held upright in the medium to be removed, where it is finally supported with the housing 27 on a floor surface.
  • the ring body 13 is fastened to the motor housing 23, for example by welding, and has an inner bayonet formation 28 and an outer bayonet formation 29.
  • the corresponding bayonet formation 28 in turn works with the corresponding bayonet formation of the end shield 8 in order to close the running gear to the motor housing 23 fasten.
  • this consists of two ring parts 13a, 13b lying essentially in the same plane.
  • the second, outer ring part 13b in the form of, for example, a sheet metal ring is likewise provided on its inner circumference with a bayonet formation 31, which can best be seen from FIG. 5.
  • This bayonet formation 31 interacts with the outer bayonet formation 29 of the first ring part 13a of the ring body 13 and the motor housing 23, so that the second ring part 13b can be detachably fastened to the motor housing 23.
  • the outer ring part 13b is fixedly connected to the housing 32 of the pump 24, e.g. by welding.
  • the pump housing 32 is sealed off from the unit housing 25 by means of an annular seal 33.
  • the outer ring part 13b is designed as a diffuser and has several, e.g. segment-shaped passages 34 (FIG. 5) so that the fluid delivered by the impeller 5 of the pump 24 can reach the annular space 26, from where it is discharged in a manner known per se via a connecting piece and a line connected to it.
  • These guide vanes are assigned for optimal fluid flow through the passages 34.
  • the procedure according to FIGS. 5 and 6 can be such that guide vanes 35 bent downwards and / or guide vanes 36 bent upwards are provided.
  • These guide vanes 35, 36 can be manufactured in such a way that they consist of the tongue-like sheet metal parts which are bent out of the zones of the ring part 13b provided for the formation of the flow passages 34 (FIG. 6).
  • this conveyor unit 21 for cleaning purposes is done in the following way. First, the lower housing part 27 with the inlets 27a is removed from the unit housing 25. Then the pump housing 32 is removed together with the outer ring part 13b by rotation by hand. Then the bearing plate 8 is grasped on handles (not shown) and rotated relative to the unit housing 25, so that the aforementioned running gear can be pulled out of the electric motor 22 as a unit. After cleaning all assemblies, reassembly takes place in reverse order.
  • the third embodiment shown in FIG. 7 consists of a delivery unit 37, generally designated 37, which is a fan or a blower.
  • a delivery unit 37 which is a fan or a blower.
  • a one-piece ring body 38 is again provided, which is firmly connected to the housing 39 of the fan 40, e.g. through welding spots.
  • the housing 42 of the electric motor 43 is fastened to the housing 39 of the fan 40 by an external bayonet configuration, generally designated 41.
  • the bearing plate 45 is connected to the ring body 38 and the fan housing 39 via an inner bayonet formation of the ring body 38, generally designated 44.
  • the bearing plate 45 on the other hand, carries the front bearing 46 for the motor shaft 47.
  • the shaft 47 in turn carries the fan wheel 48 at its end facing the fan 40 and is mounted in a further slide bearing 49 at its rear end in the usual way.
  • disassembly and reassembly can be carried out quickly by untrained users.
  • One will proceed in such a way that first the fan housing 39 is held and the motor housing 42 is rotated so that it is then pulled off together with the stator 50 and the rear bearing 49. Then you will turn the bearing plate 45, so that the entire running gear can then be pulled out to the right. After maintenance, reassembly takes place in reverse order.
  • Figure 8 shows a modified embodiment of the example in Figure 4.
  • the ring body 13 consists of a one-piece flat sheet metal part with a first bayonet formation 51 on its inner circumference and a second bayonet formation 52 on its outer circumference. Between the two bayonet configurations, a wide ring zone is provided, which comprises an inner circumferential area 53 for fastening the ring body 13 to the motor housing 23 and an outer circumferential area 54 for forming a guide device for feeding the flow annulus 26 of the submersible pump.
  • the guide apparatus is preferably designed as described in connection with FIGS. 4, 5 and 6.
  • the outer, projecting bayonet formation 52 of the ring body 13 engages in a correspondingly customary groove formation of the pump housing 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (9)

1. Unité d'entraînement, constituée par une machine produisant un écoulement, qui comporte un ou plusieurs rotors, et par un moteur électrique d'entraînement, l'arbre du moteur étant immobilisé axialement et radialement dans un flasque porte-palier sur le côté tourné vers la machine produisant un écoulement, caractérisée en ce qu'au moins deux des modules constitués par le flasque porte-palier (8), le carter (12) du moteur électrique d'entraînement (3) et le carter (4) de la machine produisant un écoulement (2;24;40), possèdent chacun un dispositif à baïonnette (18;42;19), et en ce que le flasque porte-palier (8), le carter (42) du moteur électrique d'entraînement (43) et le carter (4;32) de la machine produisant un écoulement (2;24) sont reliés entre eux au moyen d'un corps annulaire (13;38) formé d'un ou de plusieurs éléments et comportant plusieurs dispositifs à baïonnette (16,17;28,29;41,44).
2. Unité d'entraînement selon la revendication 1, caractérisée en ce que le corps annulaire (13,38) est constitué par une pièce usinée en tôle plane possédant un premier dispositif à baïonnette (16,44,28) au niveau de sa périphérie intérieure, un second dispositif à baïonnette (17,29,41) au niveau de sa périphérie extérieure, et une zone annulaire de fixation (14) prévue, pour son montage, entre les deux dispositifs à baïonnette.
3. Unité d'entraînement selon la revendication 1, caractérisée en ce que les dispositifs à baïonnette du corps annulaire (13;38) et les composants, qui sont reliés à ce corps, sont équipés respectivement de moyens d'encliquetage (20).
4. Unité d'entraînement selon l'une des revendications 1 à 3, caractérisée en ce que le corps annulaire (13) lui-même est relié rigidement au carter (10,12) du moteur électrique d'entraînement (3) et en ce que le flasque porte-palier (8) est raccordé, selon une liaison par formes complémentaires, au dispositif à baïonnette intérieur (16) du corps annulaire (13) et en ce que le carter (4) de la machine produisant un écoulement (4) est raccordé, selon une liaison par formes complémentaires, au dispositif à baïonnette extérieur (17) du corps annulaire.
5. Unité d'entraînement selon l'une des revendications 1 à 3, caractérisée en ce que le corps annulaire (38) lui-même est relié rigidement au carter (39) de la machine produisant un écoulement (40) (ventilateur) et en ce que le flasque porte-palier (45) est raccordé, selon une liaison par formes complémentaires, au dispositif à baïonnette intérieur (44) du corps annulaire (38) et le carter (43) du moteur électrique d'entraînement (42) est raccordé, selon une liaison par formes complémentaires au dispositif à baïonnette extérieur (41) du corps annulaire.
6. Unité d'entraînement selon l'une des revendications 1 à 4, dans laquelle le carter (23) du moteur électrique d'entraînement (22) est entouré, à distance, d'un carter (25) de l'unité, pour délimiter un espace annulaire d'écoulement (26) alimenté par la machine produisant un écoulement (24) (pompe immergée), caractérisée en ce que le corps annulaire (13) est constitué par une partie annulaire intérieure et une partie annulaire extérieure (13a, 13b), qui sont toutes deux reliées entre elles à l'aide d'un dispositif à baïonnette (28,31), et la partie annulaire extérieure (13b) est agencée sous la forme d'un dispositif de guidage (34,35,36) du corps annulaire (13), qui est relié rigidement, au niveau de sa périphérie extérieure, au carter (32) de la machine produisant un écoulement (24), et en ce que le dispositif de guidage est pourvu de passages d'écoulement (34) et d'aubes directrices (35,36) pour le fluide d'entraînement.
7. Unité d'entraînement selon la revendication 6, caractérisée en ce que la partie annulaire extérieure (13b) agencée sous la forme du dispositif de guidage (34,35,36) est constituée par une pièce usinée en tôle et en ce que les aubes directrices (35,36) sont constituées par des éléments en tôle en forme de languettes, qui sont repliés à partir des zones de la partie annulaire (13b), qui sont prévues pour la réalisation des passages d'écoulement (34).
8. Unité d'entraînement selon la revendication 1, dans laquelle le carter du moteur électrique d'entraînement est entouré, à distance, d'un carter de l'unité, pour délimiter un espace annulaire d'écoulement alimenté par la machine produisant un écoulement (pompe immergée), caractérisée en ce que le corps annulaire (13) est constitué par une pièce usinée en tôle possédant un premier dispositif à baïonnette (51) sur sa périphérie intérieure, un second dispositif à baïonnette (52) sur sa périphérie extérieure et une zone annulaire plane (53,54) prévue entre les deux dispositifs à baïonnette, en ce que la zone annulaire possède une partie périphérique intérieure (53) pour la fixation du corps annulaire (13) et une partie périphérique extérieure (54) agencée sous la forme d'un dispositif de guidage, pour l'alimentation de l'espace annulaire d'écoulement (26), et en ce que le dispositif de guidage est pourvu de passages d'écoulement (34) et d'aubes directrices (35,36).
9. Unité d'entraînement selon la revendication 8, caractérisée en ce que les aubes directrices (35,36) sont constituées par des pièces en tôle en forme de languettes, qui sont repliées à partir des zones, prévues pour la réalisation des passages d'écoulement (34), de la partie périphérique extérieure du corps annulaire (13).
EP92110180A 1991-07-06 1992-06-17 Dispositif de pompage constitué d'une machine à écoulement et d'un moteur Expired - Lifetime EP0522324B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4122487A DE4122487C2 (de) 1991-07-06 1991-07-06 Förderaggregat aus einer Strömungsarbeitsmaschine und aus einem Antriebsmotor
DE4122487 1991-07-06

Publications (3)

Publication Number Publication Date
EP0522324A1 EP0522324A1 (fr) 1993-01-13
EP0522324B1 true EP0522324B1 (fr) 1995-06-21
EP0522324B2 EP0522324B2 (fr) 1998-09-02

Family

ID=6435635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92110180A Expired - Lifetime EP0522324B2 (fr) 1991-07-06 1992-06-17 Dispositif de pompage constitué d'une machine à écoulement et d'un moteur

Country Status (2)

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EP (1) EP0522324B2 (fr)
DE (2) DE4122487C2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304945A1 (de) * 1993-02-19 1994-08-25 Ulli Weinberg Elektrisch antreibbare Flüssigkeitspumpe
DE19509134A1 (de) * 1995-03-14 1996-09-19 Wilo Gmbh Statorbefestigung für einen Spaltrohrmotor
DE10101521A1 (de) * 2001-01-12 2002-07-18 Bosch Gmbh Robert Getriebe-Antriebseinheit
GB0326534D0 (en) 2003-11-14 2003-12-17 Weir Warman Ltd Pump insert and assembly
DE102005059636A1 (de) * 2005-12-14 2007-06-21 Pfeiffer Vacuum Gmbh Vakuumpumpe
GB2430468B (en) * 2006-06-01 2007-08-29 Vent Axia Ltd Improvements in or relating to a heat recovery unit
FR2995067B1 (fr) * 2012-08-31 2014-08-29 Atlantic Climatisation Et Ventilation Unite de ventilation a dispositif de type a baionnette
EP3382206B1 (fr) * 2017-03-31 2020-12-16 Grundfos Holding A/S Ensemble de pompe
PL3382207T3 (pl) * 2017-03-31 2022-01-24 Grundfos Holding A/S Zespół pompy

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1895968U (de) * 1964-04-15 1964-07-02 Hans Dr Ing Moser Umwalzpumpe.
FR1399239A (fr) * 1964-06-19 1965-05-14 Rotron Manufactureing Company Ventilateur
US3407739A (en) * 1966-02-15 1968-10-29 Champion Cooler Corp Pumps and pump housing and motor unit
CH495555A (fr) * 1968-08-16 1970-08-31 Micromedic Systems Inc Pompe distributrice
DE2751516A1 (de) * 1977-11-18 1979-05-23 Hanning Elektro Werke Pumpe, insbesondere heizungsumwaelzpumpe
DE3220448C1 (de) * 1982-05-29 1983-08-11 Grundfos A/S, 8850 Bjerringbro Pumpenaggregat fuer Heizungs- und Brauchwasseranlagen
DE8514221U1 (de) * 1985-05-14 1985-08-01 Kupplungstechnik Gmbh, 4440 Rheine Vorrichtung zum Befestigen eines Pumpenaggregates
DE3524515A1 (de) * 1985-07-09 1987-01-15 Thyssen Plastik Anger Kg Wasserpumpe oder dergl.
DE3609311A1 (de) * 1986-03-20 1987-10-01 Homa Pumpenfabrik Gmbh Kreiselpumpe
EP0260501B1 (fr) * 1986-09-12 1990-03-14 Siemens Aktiengesellschaft Pompe entraînée par un électromoteur
JPH03175195A (ja) * 1989-09-26 1991-07-30 Ebara Corp 水中ポンプ

Also Published As

Publication number Publication date
DE59202598D1 (de) 1995-07-27
EP0522324B2 (fr) 1998-09-02
DE4122487C1 (fr) 1992-11-26
DE4122487C2 (de) 1997-09-18
EP0522324A1 (fr) 1993-01-13

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