DE1728405A1 - Rotating electric pump - Google Patents

Rotating electric pump

Info

Publication number
DE1728405A1
DE1728405A1 DE19671728405 DE1728405A DE1728405A1 DE 1728405 A1 DE1728405 A1 DE 1728405A1 DE 19671728405 DE19671728405 DE 19671728405 DE 1728405 A DE1728405 A DE 1728405A DE 1728405 A1 DE1728405 A1 DE 1728405A1
Authority
DE
Germany
Prior art keywords
electric pump
pump
impeller
rotating electric
bearing shell
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.)
Pending
Application number
DE19671728405
Other languages
German (de)
Inventor
Edmond Bertrant
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.)
Alstom SA
Original Assignee
Unelec SA
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
Priority claimed from FR52949A external-priority patent/FR1502641A/en
Application filed by Unelec SA filed Critical Unelec SA
Publication of DE1728405A1 publication Critical patent/DE1728405A1/en
Pending legal-status Critical Current

Links

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
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
    • 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
    • F04D13/0666—Units comprising pumps and their driving means the pump being electrically driven the motor being of the plane gap type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0011—Control, e.g. regulation, of pumps, pumping installations or systems by using valves by-pass valves
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • 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
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
    • H02K5/1282—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs the partition wall in the air-gap being non cylindrical
    • 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
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1675—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at only one end 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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1677—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • 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
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs

Landscapes

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

Description

PATENTANWÄLTEPATENT LAWYERS

DiPL-iNG. H. LEINWEBER dipl-ing. H. ZIMMERMANNDiPL-iNG. H. LEINWEBER dipl-ing. H. ZIMMERMANN

8 MUitdMR 2, Rosental 7, t. Aufg.8 MUitdMR 2, Rosental 7, t. Task

T.i.-Adr. UinpatMttitdt·* (MII) 2<19 WT.i.-addr. UinpatMttitdt * (MII) 2 <19 W

Pott tdi »de-Konto: Mönchen 22045Pott tdi »de account: Monks 22045

den 5. August 1970 the August 5, 1970

Unter ZeichenUnder signs

Z/Ri/Kg - U 13 635Z / Ri / Kg - U 13 635

1. Ausscheidung P 16 53 781-8-15 1. Elimination P 16 53 781-8-15

UNELEC, Paris (Frankreich) Rotierende ElektropumpeUNELEC, Paris (France) Rotating electric pump

Die Erfindung besieht sich auf eine rotierende Elektropumpe mit einem durch einen Asynchronmotor mit ebenem Luftspalt angetriebenen Laufrad, deren rotierende Teile von einer einzigen Lagerschale eines Lagers getragen werden, das durch die umlaufende Flüssigkeit schmierbar ist.The invention relates to a rotating electric pump with an impeller driven by an asynchronous motor with a flat air gap, the rotating parts of which are from a single one Bearing shell of a bearing are carried, which can be lubricated by the circulating liquid.

Solche auch als Spaltscheibenmoiorpumpenaggregate bezeichneten Pumpen mit ebenem Motorluftspalt eignen sich besonders für Pumpen zur Förderung heiaser Flüssigkeiten. Hierbei ergeben sich jedoch Probleme hinsichtlich der Korrosion des Pumpenlaufrads und der es umgebenden Gehäuseschnecke. Das Pumpenlaufrad, das unmittelbar an der rückwärtigen, dem Scheibenluftspalt abgesandten Stirnseite aes Läufers sitzt, kann nicht ohne weiteres aus beliebigen Materialien hergestellt werden, da sich hierbei Schwierigkei·« ten hinsichtlich der thermischen Ausdehnung von Motorläufer, Pumpenlaufrad und Achse ergeben.Such pumps, also referred to as split disk moior pump units, with a flat motor air gap are particularly suitable for Pumps for conveying hot liquids. However, this gives rise to problems with regard to the corrosion of the pump impeller and the housing worm surrounding it. The pump impeller that sent directly to the rear, the disc air gap Front side of aes runner sits, can not easily from arbitrary Materials are produced, since there are difficulties here. ten with regard to the thermal expansion of the motor rotor, pump impeller and axle.

-2-109838/0478 -2-109838 / 0478

Es ist zwar ein Pumpenlaufrad aus Kunststoff bekannt (DT-PS 697 787), das auch auf einer Kunststoffwelle sitzt. Als Kunststoff wird hierbei ein in säurefestem härtbarem Kunstharz ϊ getränktes Gewebe aus Asbest, Glas od.dgl. verwendet. Auch Einlagen aus Drahtgewebe sind bekannt. Dieser Stand der Technik gibt jedoch noch keine eindeutige Anweisung, welcher Kunststoff vorzugsweise zu verwenden ist, insbesondere, durch welche Massnahmen auch die Verwendung einer metallenen Achse oder WeJLle möglich ist, die mechanisch zu wesentlich günstigeren Ergebnissen führt.A pump impeller made of plastic is known (DT-PS 697 787), which also sits on a plastic shaft. as Plastic becomes an acid-proof, hardenable synthetic resin ϊ soaked fabric made of asbestos, glass or the like. used. Also deposits from wire mesh are known. However, this prior art does not yet give any clear instructions as to which plastic is preferred is to be used, in particular by which measures the use of a metal axle or shaft is possible which mechanically leads to much more favorable results.

Die erfindungsgemässe Elektropumpe zeichnet sich dadurch aus, dass die Lagerschale aus Graphit oder Keramik und das Puiopen-Laufrad und die es umgebende Gehäuseschnecke aus glasfaserverstärktem Polyundecanamid bestehen. Durch diese Werkstoffauswahl entsteht eine Pumpe, deren rotierende Teile korrosionsfest sind und leicht mit ausreichender mechanischer Festigkeit hergestellt werden können.The electric pump according to the invention is characterized by this from that the bearing shell made of graphite or ceramic and the Puiopen impeller and the housing worm surrounding it are made of glass fiber reinforced polyundecanamide. Through this choice of material the result is a pump whose rotating parts are corrosion-resistant and easily manufactured with sufficient mechanical strength can be.

Weitere Einzelheiten, Vorteile und Merkmale der Erfindung ; ergeben sich aus der folgenden Beschreibung. Auf der Zeichnung ist die Erfindung beispielsweise dargestellt, und zwar zeigt die Figur einen Längsschnitt durch eine erfindungsgemässe Elektropumpe. Further details, advantages and features of the invention; result from the following description. In the drawing, the invention is shown for example, namely shows the FIG. 1 shows a longitudinal section through an electric pump according to the invention.

Die in der Figur gezeigte Elektropumpe ist mit eineni Induktionsmotor mit ebenem Luftspalt ausgestattet, bei dem der Mag- j netkreis 1 des Ständers aus gewickeltem, zuvor ausgestanztem Blech oder aber aus gegossenem oder agglomeriertem magnetischen Werk- j stoff besteht. Die Schablonen-Wicklungen 2 des Ständers sind in die Nuten des Magnetkreises eingebettet und werden durch eigens zu diesem Zweck entwickelte Keile gehalten, im die elektrische Leistung zu erhöhen (breiter Schlitz, Länge beträchtlich grosser als Ständer-Blechpaket). Die aus Magnetkreis und Wicklung bestehende Einheit ist mit einem isolierenden, schalltötenden und gut wärmeleitenden Werkstoff, wie geschmeidigem Kunstharz, befestigt,The electric pump shown in the figure is with an induction motor Equipped with a flat air gap in which the magnetic circuit 1 of the stator is made from wound, previously punched sheet metal or made of cast or agglomerated magnetic material. The stencil windings 2 of the stator are in the grooves of the magnetic circuit are embedded and held by wedges specially developed for this purpose, in the electrical Increase performance (wide slot, length considerably greater as a stator laminated core). The unit consisting of magnetic circuit and winding is with an insulating, sound-deadening and good thermally conductive material, such as pliable synthetic resin, attached,

109838/CU78109838 / CU78

I Die Dichtigkeit des Ständers wird durch die Platte 4 aus nichtj oxydierbarem Metall erzielt.I The tightness of the stand is achieved by the plate 4 made of non-oxidizable metal.

I Der Magnetkreis 5 des Läufers besteht aus gewickeltem, zuvor ausgestanztem Blech oder aus gegossenem oder agglomerier tem, magnetischem Werkstoff. Die Käfigankerwicklung 6 ist aus einem unter Druck gegossenem Metall, wie Aluminium. Eine in der Zeichnung gezeigte Spezialanordnung der Stäbe gewährleistet in allen Frequenzbereichen einen besonders geräuschlosen lauf.I The magnetic circuit 5 of the rotor consists of wound, previously punched sheet metal or cast or agglomerated magnetic material. The squirrel cage winding 6 is made of one pressure cast metal such as aluminum. A special arrangement of the rods shown in the drawing ensures in all Frequency ranges a particularly noiseless run.

Zur Vermeidung jeglicher Korrosion ist der Läufer von einem dichten Mantel 7 aus Kupferlegierung, wie Messing und Kupfer, umgeben.In order to avoid any kind of corrosion, the runner is from one dense jacket 7 made of copper alloy, such as brass and copper, surrounded.

iline besondere Verbesserung besteht darin, den beschriebenen Läufer im Vakuum zu imprägnieren. Bei diesem Verfahren wird der Mantel am Läufer befestigt, und es entsteht ein kompakter, sich nicht verformender Block, der kein Betriebsgeräusch erzeugt.One particular improvement is the one described Impregnate runners in a vacuum. In this process, the jacket is attached to the runner, and a compact, non-deforming block that does not generate any operating noise.

Das einzige Lager 8 dreht sich um die am Gehäuse 10 aus Gusslegierung befestigte Achse 9.The single bearing 8 rotates about the axis 9 fastened to the housing 10 made of cast alloy.

Das sich um die feststehende Achse drehende einzige Lager ist aus einem Material hergestellt, das die Schmierung durch die umlaufende Flüssigkeit gestattet, z.B. aus Graphit, Keramik oder jedem anderen, die gleichen Merkmale aufweisenden Werkstoff.The single bearing, rotating around the fixed axis, is made of a material that allows lubrication through the circulating liquid is permitted, e.g. made of graphite, ceramic or any other material with the same characteristics.

Die Anordnung des Läufers im Verhältnis zum Ständer wird durch die Ringe 11 und 12 aus einem dem Lager angepassten Metall j gewährleistet, damit die Axialkräfte unter allen Anwendungsbedingungen Reibungsdrücke erzeugen.The arrangement of the rotor in relation to the stator is made by the rings 11 and 12 made of a metal adapted to the bearing j ensures that the axial forces under all application conditions Generate frictional pressures.

Der Läufer 5, 7 sowie das Laufrad 13 sind auf dem Lager 8 : mittels eines federnden, nicht oxydierbaren, gewellten Metall- j Streifens 15 angeordnet, so dass die Befestigung durch Dehnungs- ι unterschiede der verwendeten Werkstoffe, wie Graphit, Kupfer oder j Polyamid, deren Temperaturen unterschiedlich sind, kaum betroffen wird. Des weiteren gestattet diese Anordnung die Wiederverwendung von Teilen, falls eines geändert werden muss.The rotor 5, 7 and the impeller 13 are on the bearing 8 by means of a resilient, non-oxidizable, corrugated metal strip 15 j arranged so that the attachment by strain ι differences of the materials used, such as graphite, copper or polyamide j whose temperatures are different is hardly affected. Furthermore, this arrangement allows parts to be reused should one need to be changed.

109838/0478 -4-109838/0478 -4-

Das Pumpengehause 14 besteht aus einem der gesamten Anlage angepasstem Werkstoff, entweder aus einer gepressten Kupferlegierung oder einem gegossenen Kunststoff, wie glasfaserverstärktem Rilsan.The pump housing 14 consists of one of the entire system adapted material, either from a pressed copper alloy or a molded plastic such as glass fiber reinforced Rilsan.

Die elektrischen Kennwerte gewährleisten einen hohen Wirkungsgrad bei sehr breitem Luftspalt, wodurch das Geräusch und die auf den Anschlag wirkenden Kräfte verringert werden.The electrical parameters ensure high efficiency with a very wide air gap, which reduces the noise and the forces acting on the stop are reduced.

Aus der Figur ersieht man, dass der als Anschlag ausgebildete Ring bei der Drehbewegung hinter dem Laufrad angeordnet ist. Der Druck auf den Anschlag wird dabei durch Gegendruck der Puape ausgeglichen.From the figure it can be seen that the trained as a stop Ring is arranged behind the impeller during the rotary movement. The pressure on the stop is created by the counter pressure of the Puape balanced.

109838/0 478109838/0 478

Claims (1)

; Patentanspruch:; Claim: Kotierende Elektropumpe mit einem durch einen Asynchronmotor mit ebenem luftspalt angetriebenen laufrad, deren rotierende Teile von einer einzigen lagerschale eines lagers getragen werden, das durch die umlaufende Flüssigkeit schmierbar ist, dadurch gekennzeichnet, daao die lagerschale (8) aus Graphit oder Keramik und das Pumpen-Laufrad (13) und die es umgebende Gehäuse-Schnecke (14) aus glasfaserverstärktem Polyandecanamid bestehen.'Floating electric pump with one driven by an asynchronous motor impeller driven by a flat air gap, the rotating parts of which are carried by a single bearing shell that can be lubricated by the circulating liquid, thereby marked, daao the bearing shell (8) made of graphite or Ceramic and the pump impeller (13) and the housing worm surrounding it (14) consist of glass fiber reinforced polyandecanamide. ' 109838/0A78109838 / 0A78 LeerseiteBlank page
DE19671728405 1966-03-10 1967-03-08 Rotating electric pump Pending DE1728405A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR52949A FR1502641A (en) 1966-03-10 1966-03-10 Rotary electric pump with radial air gap
FR84908A FR91540E (en) 1966-03-10 1966-11-24 Rotary electric pump with radial air gap

Publications (1)

Publication Number Publication Date
DE1728405A1 true DE1728405A1 (en) 1971-09-16

Family

ID=26169141

Family Applications (5)

Application Number Title Priority Date Filing Date
DE19671728406 Pending DE1728406A1 (en) 1966-03-10 1967-03-08 Rotating electric pump
DE19671653781 Pending DE1653781A1 (en) 1966-03-10 1967-03-08 Rotating electric pump with a flat air gap
DE19671728407 Pending DE1728407A1 (en) 1966-03-10 1967-03-08 Rotating motor pump
DE19671788107 Pending DE1788107A1 (en) 1966-03-10 1967-03-08 Rotating electric pump
DE19671728405 Pending DE1728405A1 (en) 1966-03-10 1967-03-08 Rotating electric pump

Family Applications Before (4)

Application Number Title Priority Date Filing Date
DE19671728406 Pending DE1728406A1 (en) 1966-03-10 1967-03-08 Rotating electric pump
DE19671653781 Pending DE1653781A1 (en) 1966-03-10 1967-03-08 Rotating electric pump with a flat air gap
DE19671728407 Pending DE1728407A1 (en) 1966-03-10 1967-03-08 Rotating motor pump
DE19671788107 Pending DE1788107A1 (en) 1966-03-10 1967-03-08 Rotating electric pump

Country Status (6)

Country Link
CH (1) CH471327A (en)
DE (5) DE1728406A1 (en)
ES (1) ES337828A1 (en)
FR (1) FR91540E (en)
GB (2) GB1184420A (en)
NL (1) NL6703625A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2534740A1 (en) * 1975-08-04 1977-02-10 Franz Klaus Canned CENTRIFUGAL PUMP
DE3419831A1 (en) * 1984-05-26 1985-11-28 Albert 5204 Lohmar Blum PUMP UNIT WITH PLASTIC HOUSING
EP0217235A1 (en) * 1985-09-20 1987-04-08 SOLE S.p.A. Electric pump of the magnetic drive transmission type
EP0305776A1 (en) * 1987-08-20 1989-03-08 Licentia Patent-Verwaltungs-GmbH Heating water circulating pump
FR2636679A1 (en) * 1988-09-16 1990-03-23 Licentia Gmbh DRIVEN LIQUID PUMP GENERATED BY ELECTRIC MOTOR
DE9415319U1 (en) * 1994-09-21 1996-01-25 Wilo Gmbh, 44263 Dortmund Submersible pump

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686657B1 (en) * 1992-01-14 1994-08-12 Mitsubishi Heavy Ind Ltd MOTORIZED PUMP, PARTICULARLY FOR FUEL.
FR2732412B1 (en) * 1995-03-31 1997-06-13 Technicatome PUMPING DEVICE WITH AXIAL MOTOR

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2534740A1 (en) * 1975-08-04 1977-02-10 Franz Klaus Canned CENTRIFUGAL PUMP
DE3419831A1 (en) * 1984-05-26 1985-11-28 Albert 5204 Lohmar Blum PUMP UNIT WITH PLASTIC HOUSING
EP0217235A1 (en) * 1985-09-20 1987-04-08 SOLE S.p.A. Electric pump of the magnetic drive transmission type
EP0305776A1 (en) * 1987-08-20 1989-03-08 Licentia Patent-Verwaltungs-GmbH Heating water circulating pump
FR2636679A1 (en) * 1988-09-16 1990-03-23 Licentia Gmbh DRIVEN LIQUID PUMP GENERATED BY ELECTRIC MOTOR
DE9415319U1 (en) * 1994-09-21 1996-01-25 Wilo Gmbh, 44263 Dortmund Submersible pump

Also Published As

Publication number Publication date
NL6703625A (en) 1967-09-11
DE1728406A1 (en) 1971-08-26
GB1184420A (en) 1970-03-18
ES337828A1 (en) 1968-03-01
GB1185300A (en) 1970-03-25
DE1728407A1 (en) 1971-09-23
FR91540E (en) 1968-06-28
DE1788107A1 (en) 1972-01-13
CH471327A (en) 1969-04-15
DE1653781A1 (en) 1970-02-12

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