EP2812578B1 - Centrifugal pump and series of centrifugal pumps - Google Patents

Centrifugal pump and series of centrifugal pumps Download PDF

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Publication number
EP2812578B1
EP2812578B1 EP13703387.4A EP13703387A EP2812578B1 EP 2812578 B1 EP2812578 B1 EP 2812578B1 EP 13703387 A EP13703387 A EP 13703387A EP 2812578 B1 EP2812578 B1 EP 2812578B1
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EP
European Patent Office
Prior art keywords
pump
centrifugal
impeller
bearing support
support assembly
Prior art date
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Revoked
Application number
EP13703387.4A
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German (de)
French (fr)
Other versions
EP2812578A1 (en
Inventor
Hans-Peter Herder
Norbert Kastrup
Joachim Pahlen
Jochen Skatulla
Heinz Weibart
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KSB SE and Co KGaA
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KSB SE and Co KGaA
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Application filed by KSB SE and Co KGaA filed Critical KSB SE and Co KGaA
Priority to PL13703387T priority Critical patent/PL2812578T3/en
Publication of EP2812578A1 publication Critical patent/EP2812578A1/en
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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
    • F04D29/60—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
    • 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
    • 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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or 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
    • 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
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps

Definitions

  • the invention relates to a centrifugal pump, in which as components at least one pump housing, a bearing support assembly directly or indirectly connected to the pump housing, arranged between the pump housing and the bearing support assembly housing cover, mounted in the bearing support assembly and coaxial with a rotation axis by bearing support assembly and housing cover in the pump housing extending, rotatably driven shaft and provided in the pump housing and mounted on the shaft impeller are provided.
  • the invention also relates to a series of centrifugal pumps using such a centrifugal pump.
  • Centrifugal pumps themselves are widely used and find their application in many areas for pumping fluids.
  • a Equipment is known to provide either fixed and releasably coupled centrifugal pumps of replaceable building block parts having a plurality of different interchangeable housings each having an identical rear opening.
  • the equipment further includes a plurality of different replaceable vanes, each of which can be housed in each of the housings, a plurality of different replaceable drive shafts, each of which is incorporated into each of the housings and can be operatively connected to each of the impellers, a plurality of different interchangeable connectors, each having an identical connection means at one end, to allow any given connector to be connected to the rear end of each of the housings.
  • the kit further includes various replaceable drive means, each of which can be connected to each of the connectors and each of the pump drive shafts for driving the pump, and includes various replaceable seals which, with a selected connector, serve to close the rearward opening of the selected housing. wherein at least one connector and an associated seal are connectable between a selected housing and a selected drive to form the desired fixed centrifugal pump, and wherein at least one other connector and associated seal selectively and alternately replace the first mentioned one connector and the associated seal connectable for mounting between a selected housing and a selected drive to form a releasably coupled centrifugal pump.
  • the object of the invention is to further reduce the number of different components required for the production of, in particular, a standard centrifugal pump.
  • the object is achieved according to the invention in that at least two of the components are defined at least in two standards which relate to the industrial areas of water and chemistry, whereby the standards do not take into account Interface areas of a variety of the specified in the standards components of the same type are geometrically identical.
  • the interface regions of a plurality of the components of the same type defined in the at least two standards are geometrically identical, the interface ranges being disregarded by the standards, the individual series can be equipped with fewer components, namely Pump housing, housing cover, bearing carrier assembly, shaft, impeller, are manufactured across standards.
  • the interface area formed by the pump housing and the housing cover at their contacting surfaces is geometrically identical.
  • a further reduction in the number of different components can be achieved in that the interface area formed by the impeller and the pump housing at their interacting surfaces has the same geometric configuration.
  • the number of the plurality of components of the same kind can be further reduced if the interface area formed by the impeller and the housing cover at their interacting surfaces is geometrically identical.
  • the object of the invention is also achieved by a series of centrifugal pumps using a centrifugal pump described above.
  • a series of centrifugal pumps comprising a plurality of centrifugal pumps of different sizes, different materials and / or different applications with a small number of different components to be stocked provides.
  • a centrifugal pump for a fluid-carrying system wherein the centrifugal pump has a pump housing 1 with a suction port 2 and an exhaust port 3.
  • the pump housing 1 has an annular or cylindrical opening 4, which is closed fluid-tight by means of a housing cover 5.
  • the housing cover 5 rests against a bearing surface 6 at the opening 4 of the pump housing 1.
  • a projection 7 is formed, which surrounds the housing cover 5 partially and fixed in the radial direction.
  • Pump housing 1 and housing cover 4 form a geometrically identically formed interface region 8 at their contacting surfaces.
  • a bearing support assembly 10 is attached directly to the pump housing 1 and connected thereto and clamps the housing cover! 5 so tightly that it sits axially and radially immovable between the pump housing 1 and bearing support assembly 10. If necessary, for example, if the bearing carrier is to be thermally decoupled from the pump housing 1 or from the housing cover 5, the bearing support assembly 10 may additionally in the Fig. 1 not shown component, in particular a designated in the jargon as a component, have. Housing cover 5 and bearing support assembly 10 form at their contacting surfaces an interface portion 11 which is formed geometrically the same.
  • two bearings 12 are arranged, which receive a coaxially to a rotational axis A through the bearing support assembly 10 and the housing cover 5 extending into the pump housing 1 rotatably shaft 13.
  • Die Lager 12 ist in der Lagerarm 10 in den Pumpengephase 1 anorg.
  • a hub 15 of an impeller 16 is placed and secured with a nut 17 securely on the shaft 13.
  • a screw or other fastening means for fixing the impeller 16 to the shaft 13 may also be used.
  • Shaft 13 and impeller 16, in particular hub 15 of the impeller 16 form a geometrically identically formed interface region 18 at their contacting surfaces.
  • a motor not shown, is connected, which rotatably drives the shaft 13 about the axis of rotation A.
  • a split ring 20 is connected to the pump housing 1 in the interior of the pump housing 1 by means of a press fit.
  • Split ring 20 and impeller 13 are spaced apart, so that between gap ring 20 and impeller 16, a gap is formed.
  • Pump housing 1, in particular split ring 20 of the pump housing 1, and impeller 16 form at their cooperating, a sealing gap forming surfaces a geometrically equal Interface region 21.
  • the split ring 20 may also be integrated into the pump housing 1.
  • the split ring 20 may be attached as a race on the impeller 16 or integrated into this.
  • the housing cover 5 has a protruding into the interior of the pump housing 1 and coaxial with the axis of rotation
  • a ring portion 22, at its free end circumferentially another split ring 23 is arranged, which is preferably also connected by press-fitting with the housing cover 5.
  • a provided on the impeller 16 ring portion 24 at least partially surrounds the annular portion 22, in particular split ring 23, the housing cover 5, split ring 23 and impeller 13 are spaced apart, so that between the split ring 23 and the impeller 13, a gap is formed.
  • Housing cover 5, in particular split ring 23 of the housing cover 1, and impeller 13 form at their cooperating, almost touching surfaces an interface portion 25 which is formed geometrically equal.
  • the split ring 23 may also be integrated into the housing cover 5. Further, it is possible that the split ring 23, as the split ring 20, is arranged or formed as a raceway on the impeller 16.
  • the opening 4 of the pump housing 1 closing housing cover 5 is screwed to the pump housing 1.
  • Pump housing 1 and housing cover 5 form the interface region 8 at their contacting surfaces.
  • the housing cover 5 in turn has one or more devices, in particular threaded holes 26, in which screws 27 are screwed, with which the bearing support assembly 10 is screwed to the housing cover 5.
  • Other fasteners, such as threaded bolts, on the nuts are screwed on, are also conceivable.
  • bearing carrier assembly 10 and housing cover 4 form the interface region 11 at their contacting surfaces.

Description

Die Erfindung betrifft eine Kreiselpumpe, bei der als Bauteile wenigstens ein Pumpengehäuse, eine mit dem Pumpengehäuse direkt oder indirekt verbundene Lagerträgerbaugruppe, ein zwischen dem Pumpengehäuse und der Lagerträgerbaugruppe angeordneter Gehäusedeckel, eine in der Lagerträgerbaugruppe gelagerte und sich koaxial zu einer Drehachse durch Lagerträgerbaugruppe und Gehäusedeckel in das Pumpengehäuse erstreckende, drehend antreibbare Welle und ein in dem Pumpengehäuse angeordnetes und auf der Welle befestigtes Laufrad vorgesehen sind. Die Erfindung betrifft auch eine Baureihe von Kreiselpumpen unter Verwendung einer solchen Kreiselpumpe.The invention relates to a centrifugal pump, in which as components at least one pump housing, a bearing support assembly directly or indirectly connected to the pump housing, arranged between the pump housing and the bearing support assembly housing cover, mounted in the bearing support assembly and coaxial with a rotation axis by bearing support assembly and housing cover in the pump housing extending, rotatably driven shaft and provided in the pump housing and mounted on the shaft impeller are provided. The invention also relates to a series of centrifugal pumps using such a centrifugal pump.

Kreiselpumpen an sich sind weit verbreitet und finden ihre Anwendung in vielen Bereichen zum Fördern von Fluiden.Centrifugal pumps themselves are widely used and find their application in many areas for pumping fluids.

Aus der DE 23 27 262 A ist eine Ausrüstung bekannt, um wahlweise fest und lösbar gekoppelte Zentrifugalpumpen aus austauschbaren Baukastenteilen bereitzustellen, die eine Vielzahl von verschiedenen, austauschbaren Gehäusen mit jeweils einer identischen rückwärtigen Öffnung aufweisen. Die Ausrüstung umfasst ferner eine Vielzahl von verschiedenen austauschbaren Flügelrädern, von denen jedes in jedem der Gehäuse untergebracht werden kann, eine Vielzahl von verschiedenen austauschbaren Antriebswellen, von denen jede in jedes der Gehäuse eingebracht und wirksam darin mit jedem der Flügelräder verbunden werden kann, eine Vielzahl von verschiedenen, austauschbaren Verbindungsstücken, von denen jedes ein identisches Verbindungsmittel an einem Ende aufweist, um zu ermöglichen, dass jedes gegebene Verbindungsstück mit dem rückwärtigen Ende jedes der Gehäuse verbunden werden kann. Die Ausrüstung umfasst ferner verschiedene austauschbare Antriebsmittel, von denen jedes mit jedem der Verbindungsstücke und jeder der Pumpenantriebswellen zum Antreiben der Pumpe verbunden werden kann, und verschiedene austauschbare Dichtungen umfasst, die mit einem ausgewählten Verbindungsstück dazu dienen, die rückwärtige Öffnung des ausgewählten Gehäuses zu verschließen, wobei wenigstens ein Verbindungsstück und eine zugeordnete Dichtung zwischen einem ausgewählten Gehäuse und einem ausgewählten Antrieb verbindbar sind, um die gewünschte festgekoppelte Kreiselpumpe zu bilden, und wobei wenigstens ein anderes Verbindungsstück und eine zugeordnete Dichtung anstelle des zuerst erwähnten einen Verbindungsstücks und der zugeordneten Dichtung wahlweise und wechselweise verbindbar zum Anbringen zwischen einem ausgewählten Gehäuse und einem ausgewählten Antrieb sind, um eine lösbar gekoppelte Zentrifugalpumpe zu bilden.From the DE 23 27 262 A Equipment is known to provide either fixed and releasably coupled centrifugal pumps of replaceable building block parts having a plurality of different interchangeable housings each having an identical rear opening. The equipment further includes a plurality of different replaceable vanes, each of which can be housed in each of the housings, a plurality of different replaceable drive shafts, each of which is incorporated into each of the housings and can be operatively connected to each of the impellers, a plurality of different interchangeable connectors, each having an identical connection means at one end, to allow any given connector to be connected to the rear end of each of the housings. The kit further includes various replaceable drive means, each of which can be connected to each of the connectors and each of the pump drive shafts for driving the pump, and includes various replaceable seals which, with a selected connector, serve to close the rearward opening of the selected housing. wherein at least one connector and an associated seal are connectable between a selected housing and a selected drive to form the desired fixed centrifugal pump, and wherein at least one other connector and associated seal selectively and alternately replace the first mentioned one connector and the associated seal connectable for mounting between a selected housing and a selected drive to form a releasably coupled centrifugal pump.

Je nach dem in welchen Industriebereichen die Pumpen betrieben werden, gelten für diese unterschiedliche Normen. Beispielhaft sollen hier die international gültige Wassernorm EN 733 und die Chemienorm ISO 2858 genannt werden. Da diese Normen unter anderem unterschiedliche Geometrien für bestimmte Bauteile vorsehen, haben sich im Laufe der Zeit für die verschiedenen Einsatzbereiche jeweils eigene Formen der Pumpen gebildet. Das führte zu einer hohen Bauteilevielfalt mit den damit verbundenen Nachteilen und somit schließlich zu höheren Herstellkosten.Depending on the industrial sectors in which the pumps are operated, different standards apply to these. By way of example, the internationally valid water standard EN 733 and the chemical standard ISO 2858 should be mentioned here. Since these standards provide, inter alia, different geometries for certain components, each have their own forms of pumps formed over time for the different applications. This led to a high diversity of components with the associated disadvantages and thus ultimately to higher production costs.

Die Aufgabe der Erfindung besteht darin, die Anzahl der verschiedenen für die Herstellung von insbesondere einer Norm entsprechenden Kreiselpumpen benötigten Bauteile weiter zu reduzieren.The object of the invention is to further reduce the number of different components required for the production of, in particular, a standard centrifugal pump.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass mindestens zwei der Bauteile mindestens in zwei Normen, welche die Industriebereiche Wasser und Chemie betreffen, festgelegt sind, wobei in den Normen unberücksichtigte Schnittstellenbereiche einer Vielzahl von den in den Normen festgelegten Bauteilen gleicher Art geometrisch gleich ausgebildet sind.The object is achieved according to the invention in that at least two of the components are defined at least in two standards which relate to the industrial areas of water and chemistry, whereby the standards do not take into account Interface areas of a variety of the specified in the standards components of the same type are geometrically identical.

Diese Harmonisierung der Schnittstellenbereiche an den und oder zwischen den Bauteilen schafft die Vorraussetzung zur Komplexitätsreduzierung und beinhaltet hohes Kostensenkungspotential.This harmonization of the interface areas on and / or between the components creates the prerequisite for reducing complexity and involves high cost-cutting potential.

Dadurch, dass die Schnittstellenbereiche einer Vielzahl von den in den mindestens zwei Normen festgelegten Bauteilen gleicher Art, beispielsweise die verschiedenen Pumpengehäuse einer Baureihe, geometrisch gleich ausgebildet sind, wobei die Schnittstellenbereiche von den Normen unberücksichtigt sind, können die einzelnen Baureihen mit weniger bevorrateten Bauteilen, nämlich Pumpengehäuse, Gehäusedeckel, Lagerträgerbaugruppe, Welle, Laufrad, normübergreifend hergestellt werden.Due to the fact that the interface regions of a plurality of the components of the same type defined in the at least two standards, for example the different pump housings of a series, are geometrically identical, the interface ranges being disregarded by the standards, the individual series can be equipped with fewer components, namely Pump housing, housing cover, bearing carrier assembly, shaft, impeller, are manufactured across standards.

Nach einer erfindungsgemäßen Ausgestaltung ist der von Pumpengehäuse und Gehäusedeckel an deren sich berührenden Flächen gebildete Schnittstellenbereich geometrisch gleich ausgebildet.According to an embodiment of the invention, the interface area formed by the pump housing and the housing cover at their contacting surfaces is geometrically identical.

Eine weitere Reduzierung der Anzahl der verschiedenen Bauteile lässt sich dadurch erreichen, dass der von Laufrad und Pumpengehäuse an deren zusammenwirkenden Flächen gebildete Schnittstellenbereich geometrisch gleich ausgebildet.A further reduction in the number of different components can be achieved in that the interface area formed by the impeller and the pump housing at their interacting surfaces has the same geometric configuration.

Die Anzahl der Vielzahl von Bauteilen gleicher Art ist weiter verringerbar, wenn der von Laufrad und Gehäusedeckel an deren zusammenwirkenden Flächen gebildete Schnittstellenbereich geometrisch gleich ausgebildet ist.The number of the plurality of components of the same kind can be further reduced if the interface area formed by the impeller and the housing cover at their interacting surfaces is geometrically identical.

Dass der von Lagerträger und Gehäusedeckel an deren zusammenwirkenden Flächen gebildete Schnittstellenbereich geometrisch gleich ausgebildet ist, verringert die Vielzahl von Bauteilen gleicher Art weiter um ein Vielfaches.The fact that the interface area formed by the bearing carrier and the housing cover at their interacting surfaces has the same geometrical configuration further reduces the multiplicity of components of the same type by a multiple.

Zur Reduzierung von Bauteilen gleicher Art führt auch, wenn der von Laufrad und Welle an deren sich berührenden Flächen gebildete Schnittstellenbereich geometrisch gleich ausgebildet ist.To reduce components of the same type also results if the interface area formed by the impeller and shaft at their contacting surfaces is formed geometrically the same.

Die Aufgabe der Erfindung wird zudem durch eine Baureihe von Kreiselpumpen unter Verwendung einer vorstehend beschriebenen Kreiselpumpe gelöst Dadurch ist eine Baureihe von Kreiselpumpen geschaffen, die eine Vielzahl von Kreiselpumpen verschiedener Baugrößen, verschiedener Werkstoffe und/oder verschiedener Einsatzbereiche mit einer geringen Anzahl von verschiedenen zu bevorratenden Bauteilen bereitstellt.The object of the invention is also achieved by a series of centrifugal pumps using a centrifugal pump described above. Thus, a series of centrifugal pumps is provided, comprising a plurality of centrifugal pumps of different sizes, different materials and / or different applications with a small number of different components to be stocked provides.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im Folgenden näher beschrieben. Es zeigt die

Fig. 1
eine Kreiselpumpe mit einem zwischen dem Gehäuse und einem Lagerträger geklemmten Gehäusedeckel und die
Fig. 2
eine Kreiselpumpe mit einem an einem Gehäuse angeschraubten Gehäusedeckel.
Embodiments of the invention are illustrated in the drawings and will be described in more detail below. It shows the
Fig. 1
a centrifugal pump with a clamped between the housing and a bearing support housing cover and the
Fig. 2
a centrifugal pump with a screwed to a housing cover.

In der Fig. 1 ist eine Kreiselpumpe für ein fluidführendes System dargestellt, wobei die Kreiselpumpe ein Pumpengehäuse 1 mit einer Ansaugöffnung 2 und einer Ausströmöffnung 3 aufweist. An der der Ansaugöffnung 2 gegenüberliegenden Seite des Pumpengehäuses 1 weist das Pumpengehäuse 1 eine ring- oder zylinderartige Öffnung 4 auf, die mittels eines Gehäusedeckels 5 fluiddicht verschließbar ist. Der Gehäusedeckel 5 liegt dabei an einer Anlagefläche 6 an der Öffnung 4 des Pumpengehäuses 1 an. An der Anlagefläche 6 ist ein Ansatz 7 angeformt, der den Gehäusedeckel 5 teilweise umgibt und in radialer Richtung fixiert. Pumpengehäuse 1 und Gehäusedeckel 4 bilden an deren sich berührenden Flächen einen geometrisch gleich ausgebildeten Schnittstellenbereich 8.In the Fig. 1 a centrifugal pump for a fluid-carrying system is shown, wherein the centrifugal pump has a pump housing 1 with a suction port 2 and an exhaust port 3. At the suction opening 2 opposite side of the pump housing 1, the pump housing 1 has an annular or cylindrical opening 4, which is closed fluid-tight by means of a housing cover 5. The housing cover 5 rests against a bearing surface 6 at the opening 4 of the pump housing 1. At the contact surface 6, a projection 7 is formed, which surrounds the housing cover 5 partially and fixed in the radial direction. Pump housing 1 and housing cover 4 form a geometrically identically formed interface region 8 at their contacting surfaces.

Mittels Schrauben 9 ist eine Lagerträgerbaugruppe 10 direkt an dem Pumpengehäuse 1 befestigt bzw. mit diesem verbunden und klemmt den Gehäusedecke! 5 derart fest, dass dieser axial und radial unverschiebbar zwischen Pumpengehäuse 1 und Lagerträgerbaugruppe 10 sitzt. Bei Bedarf, beispielsweise, wenn der Lagerträger thermisch vom Pumpengehäuse 1 oder vom Gehäusedeckel 5 entkoppelt werden soll, kann die Lagerträgerbaugruppe 10 zusätzlich ein in der Fig. 1 nicht dargestelltes Bauteil, insbesondere ein in der Fachsprache als Laterne bezeichnetes Bauteil, aufweisen. Gehäusedeckel 5 und Lagerträgerbaugruppe 10 bilden an deren sich berührenden Flächen einen Schnittstellenbereich 11, der geometrisch gleich ausgebildet ist.By means of screws 9, a bearing support assembly 10 is attached directly to the pump housing 1 and connected thereto and clamps the housing cover! 5 so tightly that it sits axially and radially immovable between the pump housing 1 and bearing support assembly 10. If necessary, for example, if the bearing carrier is to be thermally decoupled from the pump housing 1 or from the housing cover 5, the bearing support assembly 10 may additionally in the Fig. 1 not shown component, in particular a designated in the jargon as a component, have. Housing cover 5 and bearing support assembly 10 form at their contacting surfaces an interface portion 11 which is formed geometrically the same.

In der Lagerträgerbaugruppe 10 sind zwei Lager 12 angeordnet, die eine sich koaxial zu einer Drehachse A durch die Lagerträgerbaugruppe 10 und den Gehäusedeckel 5 in das Pumpengehäuse 1 erstreckende Welle 13 drehbar aufnehmen. Auf ein in das Pumpengehäuse 1 ragendes erstes Wellenende 14 der Welle 13 ist eine Nabe 15 eines Laufrades 16 aufgesetzt und mit einer Schraubenmutter 17 sicher auf der Welle 13 befestigt. Alternativ zur Schraubenmutter 17 kann auch eine Schraube oder ein anderes Befestigungsmittel zur Fixierung des Laufrads 16 mit der Welle 13 verwendet werden. Welle 13 und Laufrad 16, insbesondere Nabe 15 des Laufrades 16, bilden an deren sich berührenden Flächen einen geometrisch gleich ausgebildeten Schnittstellenbereich 18.In the bearing carrier assembly 10, two bearings 12 are arranged, which receive a coaxially to a rotational axis A through the bearing support assembly 10 and the housing cover 5 extending into the pump housing 1 rotatably shaft 13. Die Lager 12 ist in der Lagerarm 10 in den Pumpengehäuse 1 angeordnet. On a projecting into the pump housing 1 first shaft end 14 of the shaft 13, a hub 15 of an impeller 16 is placed and secured with a nut 17 securely on the shaft 13. As an alternative to the nut 17, a screw or other fastening means for fixing the impeller 16 to the shaft 13 may also be used. Shaft 13 and impeller 16, in particular hub 15 of the impeller 16, form a geometrically identically formed interface region 18 at their contacting surfaces.

An einem dem ersten Wellenende 14 gegenüberliegenden zweiten Wellenende 19 der Welle 13 ist ein nicht dargestellter Motor angeschlossen, der die Welle 13 um die Drehachse A rotierend antreibt.At a first shaft end 14 opposite the second shaft end 19 of the shaft 13, a motor, not shown, is connected, which rotatably drives the shaft 13 about the axis of rotation A.

Im Bereich der Ansaugöffnung 2 ist im Innenraum des Pumpengehäuses 1 ein Spaltring 20 mittels Presspassung mit dem Pumpengehäuse 1 verbunden. Spaltring 20 und Laufrad 13 sind voneinander beabstandet, sodass zwischen Spaltring 20 und Laufrad 16 ein Spalt gebildet wird. Pumpengehäuse 1, insbesondere Spaltring 20 des Pumpengehäuses 1, und Laufrad 16 bilden an ihren zusammenwirkenden, einen Dichtspalt bildenden Flächen einen geometrisch gleich ausgebildeten Schnittstellenbereich 21. Alternativ dazu kann der Spaltring 20 auch in das Pumpengehäuse 1 integriert sein. Des Weiteren kann der Spaltring 20 als Laufring an dem Laufrad 16 befestigt oder in dieses integriert sein.In the area of the intake opening 2, a split ring 20 is connected to the pump housing 1 in the interior of the pump housing 1 by means of a press fit. Split ring 20 and impeller 13 are spaced apart, so that between gap ring 20 and impeller 16, a gap is formed. Pump housing 1, in particular split ring 20 of the pump housing 1, and impeller 16 form at their cooperating, a sealing gap forming surfaces a geometrically equal Interface region 21. Alternatively, the split ring 20 may also be integrated into the pump housing 1. Furthermore, the split ring 20 may be attached as a race on the impeller 16 or integrated into this.

Der Gehäusedeckel 5 weist einen in den Innenraum des Pumpengehäuses 1 ragenden und koaxial zur Drehachse A ausgebildeten Ringabschnitt 22 auf, an dessen freien Ende umfangsseitig ein weiterer Spaltring 23 angeordnet ist, der vorzugsweise ebenfalls mittels Presspassung mit dem Gehäusedeckel 5 verbunden ist. Ein am Laufrad 16 vorgesehener Ringabschnitt 24 umgibt wenigstens teilweise den Ringabschnitt 22, insbesondere Spaltring 23, des Gehäusedeckels 5, wobei Spaltring 23 und Laufrad 13 voneinander beabstandet sind, sodass zwischen dem Spaltring 23 und dem Laufrad 13 ein Spalt gebildet wird. Gehäusedeckel 5, insbesondere Spaltring 23 des Gehäusedeckels 1, und Laufrad 13 bilden an ihren zusammenwirkenden, sich nahezu berührenden Flächen einen Schnittstellenbereich 25, der geometrisch gleich ausgebildet ist. Alternativ dazu kann der Spaltring 23 auch in den Gehäusedeckel 5 integriert sein. Ferner ist es möglich, dass der Spaltring 23, wie der Spaltring 20, als Laufring an dem Laufrad 16 angeordnet oder ausgebildet ist.The housing cover 5 has a protruding into the interior of the pump housing 1 and coaxial with the axis of rotation A ring portion 22, at its free end circumferentially another split ring 23 is arranged, which is preferably also connected by press-fitting with the housing cover 5. A provided on the impeller 16 ring portion 24 at least partially surrounds the annular portion 22, in particular split ring 23, the housing cover 5, split ring 23 and impeller 13 are spaced apart, so that between the split ring 23 and the impeller 13, a gap is formed. Housing cover 5, in particular split ring 23 of the housing cover 1, and impeller 13 form at their cooperating, almost touching surfaces an interface portion 25 which is formed geometrically equal. Alternatively, the split ring 23 may also be integrated into the housing cover 5. Further, it is possible that the split ring 23, as the split ring 20, is arranged or formed as a raceway on the impeller 16.

Bei der in der Fig. 2 gezeigten Ausführungsform ist der die Öffnung 4 des Pumpengehäuses 1 verschließende Gehäusedeckel 5 an das Pumpengehäuse 1 angeschraubt. Dadurch ist es möglich, das in der Fig. 1 gezeigte Pumpengehäuse 1 mit einer kleineren, insbesondere im Durchmesser verringerten, Lagerträgerbaugruppe 10, oder umgekehrt, die Lagerträgerbaugruppe 10 mit einem größeren Pumpengehäuse 1 zu verbinden. Die Verbindung der Lagerträgerbaugruppe 10 mit dem Pumpengehäuse 1 erfolgt über den Gehäusedeckel 5, also indirekt. Pumpengehäuse 1 und Gehäusedeckel 5 bilden an deren sich berührenden Flächen den Schnittstellenbereich 8.When in the Fig. 2 As shown embodiment, the opening 4 of the pump housing 1 closing housing cover 5 is screwed to the pump housing 1. This makes it possible to do that in the Fig. 1 shown pump housing 1 with a smaller, in particular reduced in diameter, bearing support assembly 10, or vice versa, the bearing support assembly 10 with a larger pump housing 1 to connect. The connection of the bearing carrier assembly 10 with the pump housing 1 via the housing cover 5, so indirectly. Pump housing 1 and housing cover 5 form the interface region 8 at their contacting surfaces.

Der Gehäusedeckel 5 wiederum weist eine oder mehrere Vorrichtungen, insbesondere Gewindelöcher 26, auf, in welche Schrauben 27 eindrehbar sind, mit denen die Lagerträgerbaugruppe 10 an den Gehäusedeckel 5 angeschraubt wird. Andere Befestigungsmittel, beispielsweise Gewindebolzen, auf die Schraubenmuttern aufgeschraubt werden, sind ebenfalls denkbar. Dabei bilden Lagerträgerbaugruppe 10 und Gehäusedeckel 4 an deren sich berührenden Flächen den Schnittstellenbereich 11.The housing cover 5 in turn has one or more devices, in particular threaded holes 26, in which screws 27 are screwed, with which the bearing support assembly 10 is screwed to the housing cover 5. Other fasteners, such as threaded bolts, on the nuts are screwed on, are also conceivable. In this case, bearing carrier assembly 10 and housing cover 4 form the interface region 11 at their contacting surfaces.

Dadurch, dass die Schnittstellenbereiche 8, 11, 18, 21, 25 einer Vielzahl von den in den mindestens zwei Normen festgelegten Bauteilen gleicher Art, beispielsweise die verschiedenen Pumpengehäuse 1 einer Baureihe, geometrisch gleich ausgebildet sind, wobei die Schnittstellenbereiche 8, 11, 18, 21, 25 von den Normen unberücksichtigt sind, können die einzelnen Baureihen mit weniger bevorrateten Bauteilen, nämlich Pumpengehäuse 1, Gehäusedeckel 5, Lagerträgerbaugruppe 10, Welle 13, Laufrad 16, hergestellt werden.Characterized in that the interface regions 8, 11, 18, 21, 25 of a multiplicity of the components of the same type defined in the at least two standards, for example the different pump housings 1 of a series, have the same geometric configuration, the interface regions 8, 11, 18, 21, 25 are disregarded by the standards, the individual series can be produced with less stocked components, namely pump housing 1, housing cover 5, bearing support assembly 10, shaft 13, impeller 16.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Pumpengehäusepump housing
22
Ansaugöffnungsuction
33
Ausströmöffnungoutflow
44
Öffnungopening
55
Gehäusedeckelhousing cover
66
Anlageflächecontact surface
77
Ansatzapproach
88th
SchnittstellenbereichInterface Area
99
Schraubescrew
1010
LagerträgerbaugruppeBearing support assembly
1111
SchnittstellenbereichInterface Area
1212
Lagerwarehouse
1313
Wellewave
1414
erstes Wellenendefirst wave end
1515
Nabehub
1616
LaufradWheel
1717
Schraubenmutternut
1818
SchnittstellenbereichInterface Area
1919
zweites Wellenendesecond shaft end
2020
Spaltringsplit ring
2121
SchnittstellenbereichInterface Area
2222
Ringabschnittring section
2323
Spaltringsplit ring
2424
Ringabschnittring section
2525
SchnittstellenbereichInterface Area
2626
Gewindelöcherthreaded holes
2727
Schraubescrew
AA
Drehachseaxis of rotation

Claims (7)

  1. Centrifugal pump in which at least
    one pump casing,
    a bearing support assembly connected directly or indirectly to the pump casing,
    a casing cover arranged between the pump casing and the bearing support assembly,
    a rotationally drivable shaft which is supported in the bearing support assembly and which extends into the pump casing through bearing support assembly and casing cover coaxially with respect to an axis of rotation, and
    an impeller arranged in the pump casing and fastened on the shaft are provided as components, characterized in that
    at least two of the components (1, 5, 10, 13, 16) are defined at least in two standards, which relate to the industrial sectors of water and chemistry, wherein interface areas (8, 11, 18, 21, 25), which are not taken into account in the standards, of a plurality of the components (1, 5, 10, 13, 16) that are defined in the standards and are of the same type are geometrically identical.
  2. Centrifugal pump according to Claim 1, characterized in that the interface area (8) formed by pump casing (1) and casing cover (5) on their contacting surfaces is geometrically identical.
  3. Centrifugal pump according to one of Claims 1 or 2, characterized in that the interface area (21) formed by pump casing (1) and impeller (16) on their interacting surfaces is geometrically identical.
  4. Centrifugal pump according to one of Claims 1 to 3, characterized in that the interface area (25) formed by casing cover (5) and impeller (16) and on their interacting surfaces is geometrically identical.
  5. Centrifugal pump according to one of Claims 1 or 2, characterized in that the interface area (11) formed by casing cover (4) and bearing support assembly (10) on their contacting surfaces is geometrically identical.
  6. Centrifugal pump according to one of Claims 1 to 3, characterized in that the interface area (18) formed by shaft (13) and impeller (16) on their contacting surfaces is geometrically identical.
  7. Series of centrifugal pumps using a centrifugal pump according to one of Claims 1 to 6.
EP13703387.4A 2012-02-08 2013-02-07 Centrifugal pump and series of centrifugal pumps Revoked EP2812578B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13703387T PL2812578T3 (en) 2012-02-08 2013-02-07 Centrifugal pump and series of centrifugal pumps

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012002325 2012-02-08
DE102013201902A DE102013201902A1 (en) 2012-02-08 2013-02-06 Centrifugal pump and centrifugal pump series
PCT/EP2013/052374 WO2013117617A1 (en) 2012-02-08 2013-02-07 Centrifugal pump and series of centrifugal pumps

Publications (2)

Publication Number Publication Date
EP2812578A1 EP2812578A1 (en) 2014-12-17
EP2812578B1 true EP2812578B1 (en) 2019-04-10

Family

ID=48794797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13703387.4A Revoked EP2812578B1 (en) 2012-02-08 2013-02-07 Centrifugal pump and series of centrifugal pumps

Country Status (10)

Country Link
US (1) US20150369256A1 (en)
EP (1) EP2812578B1 (en)
CN (1) CN104204537B (en)
BR (1) BR112014019221A8 (en)
DE (1) DE102013201902A1 (en)
DK (1) DK2812578T3 (en)
ES (1) ES2729832T3 (en)
HU (1) HUE044741T2 (en)
PL (1) PL2812578T3 (en)
WO (1) WO2013117617A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111927893B (en) * 2020-08-15 2021-08-24 唐翠华 Connecting structure of water pump shaft and motor shaft

Citations (6)

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Publication number Priority date Publication date Assignee Title
DE2045685A1 (en) 1970-09-16 1972-05-31 Klein Schanzlin & Becker Ag Centrifugal pump housing
DE2327262A1 (en) 1972-05-30 1973-12-13 Worthington Corp CENTRIFUGAL PUMPS FROM INTERCHANGEABLE MODULAR PARTS
DE7506175U (en) 1975-02-28 1976-02-19 Klein, Schanzlin & Becker Ag, 6710 Frankenthal CENTRIFUGAL PUMP
DE3608230A1 (en) 1986-03-12 1987-09-17 Allweiler Ag Kit of centrifugal pumps
DE29504507U1 (en) 1995-03-21 1995-05-04 Grundfos As Centrifugal pump housing
DE20005247U1 (en) 2000-03-21 2000-05-25 Grundfos A S Bjerringbro Centrifugal pump unit

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Publication number Priority date Publication date Assignee Title
ITVI20030116A1 (en) * 2003-06-13 2004-12-14 Calpeda A Spa CONNECTION LANTERN IN MONOBLOCK PUMPS AND PROTECTION FOR SAID LANTERN.
EP1855012A1 (en) * 2006-05-11 2007-11-14 IHC Holland IE N.V. Centrifugal pump having an inner casing and an outer casing
CN200952475Y (en) * 2006-08-21 2007-09-26 上海连成（集团）有限公司 Horizontal multistage pump

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Publication number Priority date Publication date Assignee Title
DE2045685A1 (en) 1970-09-16 1972-05-31 Klein Schanzlin & Becker Ag Centrifugal pump housing
DE2327262A1 (en) 1972-05-30 1973-12-13 Worthington Corp CENTRIFUGAL PUMPS FROM INTERCHANGEABLE MODULAR PARTS
DE7506175U (en) 1975-02-28 1976-02-19 Klein, Schanzlin & Becker Ag, 6710 Frankenthal CENTRIFUGAL PUMP
DE3608230A1 (en) 1986-03-12 1987-09-17 Allweiler Ag Kit of centrifugal pumps
DE29504507U1 (en) 1995-03-21 1995-05-04 Grundfos As Centrifugal pump housing
DE20005247U1 (en) 2000-03-21 2000-05-25 Grundfos A S Bjerringbro Centrifugal pump unit

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
GRUNDFOS, GRUNDFOS WASSERTECHNIK FÜRSTENWALDE VOM, 12 June 2007 (2007-06-12), XP055671759, Retrieved from the Internet <URL:https://Product-selection.grundfos.com/search>
GRUNDFOS: "Produktinformationen zu den Kreiselpumpen der Baureihe NK, 50/60 Hz, Model A", GRUNDFOS, SERVICE KIT CATALOGUE, FÜNFTE AUSGABE, 16 January 2012 (2012-01-16), pages 33.514 - 33.546, XP55671731
GRUNDFOS: "Produktinformationen zu den Kreiselpumpen der Baureihe NKG, 50/60 Hz", GRUNDFOS, SERVICE KIT CATALOGUE, ERSTE AUSGABE, 16 January 2012 (2012-01-16), pages 34.474 - 34.499, XP55671745
JOHNSON PUMO: "Combi Modular System Standardised centrifugal pumps", 1 February 2008 (2008-02-01), pages 1 - 8, XP007921897, Retrieved from the Internet <URL:http;//pdf.directindustry.com/pdf/johnson-pump/combi-modular-SYSI> [retrieved on 20130514]

Also Published As

Publication number Publication date
WO2013117617A1 (en) 2013-08-15
EP2812578A1 (en) 2014-12-17
CN104204537B (en) 2020-06-16
DE102013201902A1 (en) 2013-08-08
BR112014019221A2 (en) 2017-06-20
PL2812578T3 (en) 2020-03-31
DK2812578T3 (en) 2019-07-15
HUE044741T2 (en) 2019-11-28
ES2729832T3 (en) 2019-11-06
BR112014019221A8 (en) 2018-07-31
CN104204537A (en) 2014-12-10
US20150369256A1 (en) 2015-12-24

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