EP1272761B1 - Kreiselpumpe mit einer lageranordnung - Google Patents

Kreiselpumpe mit einer lageranordnung Download PDF

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Publication number
EP1272761B1
EP1272761B1 EP01910257A EP01910257A EP1272761B1 EP 1272761 B1 EP1272761 B1 EP 1272761B1 EP 01910257 A EP01910257 A EP 01910257A EP 01910257 A EP01910257 A EP 01910257A EP 1272761 B1 EP1272761 B1 EP 1272761B1
Authority
EP
European Patent Office
Prior art keywords
impeller
bearings
pump
shaft
centrifugal pump
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
EP01910257A
Other languages
English (en)
French (fr)
Other versions
EP1272761A1 (de
EP1272761B8 (de
Inventor
Arne Jonsson
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.)
Wartsila Oil and Gas Systems AS
Original Assignee
Hamworthy KSE 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
Application filed by Hamworthy KSE AS filed Critical Hamworthy KSE AS
Publication of EP1272761A1 publication Critical patent/EP1272761A1/de
Application granted granted Critical
Publication of EP1272761B1 publication Critical patent/EP1272761B1/de
Publication of EP1272761B8 publication Critical patent/EP1272761B8/de
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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/049—Roller bearings
    • 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
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings 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
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage
    • F05D2260/6022—Drainage of leakage having past a seal

Definitions

  • a drive shaft 8 for transmitting torque to the impeller 4 will be relatively heavily loaded and is at one of its ends connected to the impeller 3 via a positive connection by using at least two fasteners or shaft keys, preferably several of these in the form of so-called splines, indicated by the reference numeral 9 in the figure.
  • the drive shaft 8 is advantageously separated or sealed from the pumped fluid by using the sleeve 5 and relevant parts 19 of the impeller hub section.
  • the drive shaft 8 is also at its other end joined permanently to or made in one piece with driving flange 10, 10' to which an optionally flexible shaft coupling can be connected for delivery of torque.
  • the outer bearing rings or bearing raceways 12, 12' of the shaft bearings are preferably rotatable with the impeller 3 and placed in the impeller hub 3'. This involves the advantage that only static stresses occur and thus no dynamic loads that can cause fatigue.
  • the bearing device is also essentially placed in the impeller hub or in immediate connection with this hub.
  • the axial dimensions of the bearing device are thus normally less than or at most of the same magnitude as the total axial length of the impeller.

Claims (8)

  1. Kreiselpumpe zum Transport eines Fluids, welche Kreiselpumpe mit einem Antriebsmotor verbindbar ist, beinhaltend ein Gehäuse (15), ein Laufrad (3) mit einer axialen Ausdehnung und einem äusseren Durchmesser mit einer Austrittskante (13), welche Austrittskante (13) für einen im wesentlichen radial nach aussen gerichteten Austritt ausgebildet ist, eine Antriebswelle (8), deren erstes Ende mit dem Laufrad (3) verbunden und deren zweites Ende mit dem Antriebsmotor verbindbar ist,
    eine Lagervorrichtung zur drehenden Lagerung des Laufrads (13) im Gehäuse (15), welche Lagervorrichtung (1, 1') innerhalb der axialen Ausdehnung des Laufrads (3) angeordnet ist und aus einem oder mehreren Lagern (1, 1') besteht, sowie einen mit dem Gehäuse (15) verbundenen und in das Laufrad (3) hineinragenden Lagersitz (19, 15'''),
    dadurch gekennzeichnet, dass
    der Lagersitz (19, 15''') eine mittige durchgehende Bohrung zur Aufnahme der Antriebswelle (8) aufweist, und
    gekennzeichnet durch mindestens eine Wellendichtung (2) zwischen dem Laufrad (3) und dem Gehäuse, wodurch die Lagervorrichtung (1, 1') vom transportierten Fluid getrennt wird,
    wobei die Breite und/oder die jeweiligen Lagerlaufringe (12, 12', 14, 14') des Lagers bzw. der Lager (1, 1') einen charakteristischen Abstand a bildet bzw. bilden, der den grösseren Wert von axialer Gesamtbreite a1 der Lager und Abstand a2 zwischen den Kraftmittelpunkten der Lager in einer Mittelachse (21) der Lagervorrichtung darstellt und wobei ein Mittelpunkt (4) auf der Austrittskante (13) des Laufrads (3) in Axialrichtung gesehen an einer Stelle in einem Abstand b zu einem axialen Mittelpunkt für die Lagervorrichtung liegt mit b ≤ 2a.
  2. Kreiselpumpe nach Anspruch 1, worin eine Buchse (5) mit dem Laufrad (3) verbunden und zwischen den Lagern (1, 1') und der mindestens einen Wellendichtung (2) angeordnet ist, um jegliche Verluste der Wellendichtung (2) in die Umgebung (16) der Pumpe zu transportieren und/oder abzulenken, wobei die Buchse (5) zwei Kammern (6, 7) bildet und die Kammer (6), in der sich die Lager (1, 1') befinden, vom gepumpten Fluid und/oder von jeglichem aus der Wellendichtung austretendem Fluid getrennt ist.
  3. Kreiselpumpe nach Anspruch 1 oder 2, worin die Antriebswelle (8) zur Übertragung des Drehmoments vom Antriebsmotor zum Laufrad (3) am einen Ende an mindestens zwei Berührungsflächen in einer Ausnehmung im Laufrad zur Aufnahme eines Wellenendes (3, 3') anliegt, z.B. über eine sogenannte Nut- oder Keilwellenverbindung; und dass die Antriebswelle am anderen Ende zur Verbindung mit der Welle (17) des Antriebsmotors über eine Kupplung (10, 10') ausgebildet ist.
  4. Kreiselpumpe nach Anspruch 3, worin die Kupplung aus einem ersten, an der Antriebswelle (8) befestigten oder einstückig mit derselben ausgebildeten Flansch (10) und einem zweiten, an der Motorwelle befestigten oder einstückig mit derselben ausgebildeten zweiten Flansch (10') besteht, und dass der erste und der zweite Flansch über eine Verbindung mittels Schrauben und Muttern, durch Kleben, Abscherstifte oder dergleichen miteinander verbindbar sind.
  5. Kreiselpumpe nach Anspruch 1 oder 2, wobei die äusseren Laufringkörper (12, 12') der Lager (1, 1') jeweils im Laufrad (3, 3') liegen und die inneren Laufringkörper (14, 14') der Lager (1, 1') mechanisch mit dem Pumpengehäuse verbunden sind.
  6. Kreiselpumpe nach Anspruch 1 oder 2, wobei die Wellendichtung (2) auf einem ringförmigen Teil (3") des Laufrads angeordnet ist; und wobei die äusseren Laufringkörper (12, 12') der Lager über das Laufrad (3) an der Antriebswelle (8) befestigt und zusammen mit diesem drehbar sind.
  7. Kreiselpumpe nach einem oder mehreren der vorstehenden Ansprüche, wobei die Kreiselpumpe eine im wesentlichen senkrecht angeordnete Drehachse (21) aufweist und der Antriebsmotor auf einem Gestell montiert ist, das mit dem Pumpengehäuse verbunden ist.
  8. Kreiselpumpe nach Anspruch 2, worin die Buchse (5) doppelwandig ausgeführt ist und/oder Schaufeln aufweist, welche derart ausgebildet sind, dass sie während der Drehung der Buchse zusammen mit dem Laufrad eine Pumpwirkung erzeugen, um jegliche Fluidverluste aus der Wellendichtung (2) in die Umgebung der Pumpe hinaus zu befördern.
EP01910257A 2000-02-24 2001-02-23 Kreiselpumpe mit einer lageranordnung Expired - Lifetime EP1272761B8 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20000912 2000-02-24
NO20000912A NO311105B1 (no) 2000-02-24 2000-02-24 Sentrifugalpumpe
PCT/NO2001/000073 WO2001088380A1 (en) 2000-02-24 2001-02-23 Bearing arrangement in a centrifugal pump

Publications (3)

Publication Number Publication Date
EP1272761A1 EP1272761A1 (de) 2003-01-08
EP1272761B1 true EP1272761B1 (de) 2006-09-27
EP1272761B8 EP1272761B8 (de) 2006-11-15

Family

ID=19910781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01910257A Expired - Lifetime EP1272761B8 (de) 2000-02-24 2001-02-23 Kreiselpumpe mit einer lageranordnung

Country Status (10)

Country Link
EP (1) EP1272761B8 (de)
JP (1) JP4035326B2 (de)
KR (1) KR100471537B1 (de)
AT (1) ATE340936T1 (de)
AU (1) AU3783301A (de)
DE (1) DE60123410T2 (de)
DK (1) DK1272761T3 (de)
ES (1) ES2270985T3 (de)
NO (1) NO311105B1 (de)
WO (1) WO2001088380A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2901638B1 (de) * 1979-01-17 1979-08-30 Gascoigne Suedstall Gmbh Kreiselpumpe fuer mit Feststoffen versetzte Fluessigkeiten
DE3421374C1 (de) * 1984-06-08 1985-06-20 Skf Gmbh Lagereinheit mit integrierter Pumpe
US5217350A (en) * 1990-12-28 1993-06-08 Honda Giken Kogyo Kabushiki Kaisha Water pump
FR2693514B1 (fr) * 1992-07-10 1994-09-02 Richard Baglin Perfectionnement aux pompes centrifuges.
DE4327425A1 (de) * 1992-09-14 1994-03-17 Klein Schanzlin & Becker Ag Lagerung

Also Published As

Publication number Publication date
ATE340936T1 (de) 2006-10-15
JP2003533643A (ja) 2003-11-11
JP4035326B2 (ja) 2008-01-23
ES2270985T3 (es) 2007-04-16
KR100471537B1 (ko) 2005-03-09
DE60123410D1 (de) 2006-11-09
NO20000912L (no) 2001-08-27
DE60123410T2 (de) 2007-08-23
AU3783301A (en) 2001-11-26
EP1272761A1 (de) 2003-01-08
WO2001088380A1 (en) 2001-11-22
EP1272761B8 (de) 2006-11-15
NO311105B1 (no) 2001-10-08
KR20030009366A (ko) 2003-01-29
NO20000912D0 (no) 2000-02-24
DK1272761T3 (da) 2007-01-29

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