EP2607703A1 - Centrifugal pump - Google Patents

Centrifugal pump Download PDF

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Publication number
EP2607703A1
EP2607703A1 EP11195186.9A EP11195186A EP2607703A1 EP 2607703 A1 EP2607703 A1 EP 2607703A1 EP 11195186 A EP11195186 A EP 11195186A EP 2607703 A1 EP2607703 A1 EP 2607703A1
Authority
EP
European Patent Office
Prior art keywords
housing part
centrifugal pump
pump
pressure
intermediate housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11195186.9A
Other languages
German (de)
French (fr)
Other versions
EP2607703B1 (en
Inventor
Mikkelsen Steen
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 Holdings AS
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Grundfos Holdings 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 Grundfos Holdings AS filed Critical Grundfos Holdings AS
Priority to EP11195186.9A priority Critical patent/EP2607703B1/en
Priority to AU2012265619A priority patent/AU2012265619B2/en
Priority to US13/721,243 priority patent/US10247202B2/en
Priority to RU2012155868/06A priority patent/RU2556948C2/en
Priority to CN201210566980.2A priority patent/CN103174654B/en
Publication of EP2607703A1 publication Critical patent/EP2607703A1/en
Application granted granted Critical
Publication of EP2607703B1 publication Critical patent/EP2607703B1/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
    • 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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F04D1/063—Multi-stage pumps of the vertically split casing type
    • F04D1/066—Multi-stage pumps of the vertically split casing type the casing consisting of a plurality of annuli bolted together
    • 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
    • F04D29/4293—Details of fluid inlet or outlet

Definitions

  • the invention relates to a centrifugal pump according to the preamble of claim 1.
  • Centrifugal pumps with one or more stages are known in the art and are widely used because of their simple and robust design.
  • the invention has the object, a generic centrifugal pump, in particular a multi-stage centrifugal pump in such a way that different connection variants can be constructed with as many common parts.
  • the centrifugal pump according to the invention has at least one pump stage and has a multi-part housing, with a first housing part, which has a suction port, with a second housing part, which has a pressure port and at least one intermediate housing part, which leading to the pressure side of the at least one pump stage channel at least partially limited, and with a third housing part, wherein the second housing part and the at least one intermediate housing part between the first and the third housing part are arranged, wherein the at least one intermediate housing part and the second housing part for arrangement in at least two different positions with respect to the first and third housing part are formed.
  • the degree of freedom for the positioning of the second housing part, which has the pressure connection is increased. In this way, in particular, the pressure port can be arranged in different positions, without changing the components constructively.
  • the basic idea of the present invention is to design the existing housing parts, in particular the at least one intermediate housing part and the second housing part, so that they can be arranged together or individually in different positions with respect to the first and third housing part, so that the pressure connection in FIG Its arrangement can be changed without having to change the components.
  • this can be realized in that at least the second housing part is arranged to be rotatable about the longitudinal axis so as to be able to vary the angle between the suction connection and the pressure connection.
  • the at least one intermediate housing part and the second housing part are designed for arrangement in at least two different longitudinal positions relative to the rotary axis of the pump.
  • a variable positioning of the pressure port is made possible, in particular in the axial and optionally also in the radial direction of the centrifugal pump. Due to the increased degrees of freedom in the positioning of the pressure port to the suction port, the centrifugal pump is more flexible, and it can be a better adaptation to different installation situations realized.
  • Expensive deflectors and lines can be saved because the pressure connection having the second housing part and the intermediate housing part can be arranged in any order, which means in particular means that by means of this configuration, the pressure connection with respect to the centrifugal pump above or below and regardless of the stages Centrifugal pump can be arranged.
  • the at least one intermediate housing part has a substantially hollow cylindrical shape and limits the channel formed between the pressure side of the at least one pump stage and the pressure port, which is formed in this area as an annular channel, on the outside.
  • the at least one intermediate housing part and / or the second housing part having the pressure connection can be fastened in different rotational positions relative to the gyro axis.
  • the at least one intermediate housing part and the second housing part having the pressure connection are at least one side, which adjoins another housing part, formed connection same.
  • the at least one intermediate housing part and the second housing part having the pressure connection are formed on two sides, which each connect to a further housing part, with the same connection. This allows any arrangement of the individual components to each other.
  • the at least one intermediate housing part and the second housing part having the pressure connection are of modular design.
  • the at least one intermediate housing part and the second housing part having the pressure connection are clamped between the first and the third housing part.
  • two housing parts are connected by incorporation of a sealing ring, preferably an O-ring.
  • connections between adjacent housing parts are formed such that the housing outer walls are aligned with one another and the front end of a housing part engages in a form-fitting manner in a contrast expanded end face of the adjoining housing part.
  • FIG. 1 shows a section through a centrifugal pump 1 according to an embodiment of the invention.
  • the centrifugal pump 1 is formed here in multiple stages with ten pump stages 2, which will not be described in detail here. Alternatively, the centrifugal pump 1 but also with z. B. twelve pump stages 2 or any other number of pump stages 2 may be formed.
  • the centrifugal pump 1 a first housing part 3, which is provided with a suction nozzle 4 having a suction port 5, through which a fluid to be conveyed enters the centrifugal pump 1, on.
  • a pressure port 7 is provided with a pressure port 8 through which exits the fluid to be delivered from the centrifugal pump. Both the suction port 5 and the pressure port 6 is provided with respective connecting flanges 9.
  • a hollow cylindrical formed intermediate housing part 10 is arranged between the first housing part 3 and the second housing part 6, a hollow cylindrical formed intermediate housing part 10 is arranged.
  • the intermediate housing part 10 delimits a channel 11 formed by the pump stages 2 and the pressure connection 7, which channel is designed as an annular channel in this area, on the outside.
  • the intermediate housing part 10 and the second housing part 6, which has the pressure connection 7, are of identical connection on two sides, which each connect to a further housing part, ie they are designed to be connectable to one another in one unit.
  • the first housing part 3 with a lower end 12 of the Intermediate housing part 10 is connected, and the second housing part 6 is connected to an upper end 13 of the intermediate housing part 10.
  • the connections between the respectively adjacent housing parts are designed such that the housing outer wall 15 of the first housing part 3, the housing wall 16 of the intermediate housing part 10 and the housing outer wall 17 of the second housing part 6 are aligned with each other. Furthermore engages the front end lower end 12 of the intermediate housing part 10 in a contrast expanded end 18 of the first housing part 3 a form-fitting, and the frontal upper end 13 of the intermediate housing part 10 engages in a contrast expanded end 19 of the second housing part 6 a form fit.
  • each sealing rings 14 which are designed here as O-rings, are provided at the respective connecting portions.
  • the centrifugal pump 1 further comprises a third housing part 20, which forms the lid of the centrifugal pump 1 and for connecting the centrifugal pump 1 to a motor (not shown here) is formed.
  • the third housing part 20 is connected to the upper front end 21 of the second housing part 6, wherein here too the connecting portion is sealed by means of a sealing ring 14.
  • Fig. 2A, 2B, 2C show respective schematic representations of differently configured centrifugal pumps 1 according to embodiments of the invention to illustrate the variable axial spacing of the first housing part 3 containing the suction port 5 to the second housing part 6 containing the pressure port 7, which by the inventive configuration of the centrifugal pump 1 and its modular Construction is feasible.
  • the channel 11 as an annular channel, as in connection with Fig. 1 has been described, also a variable positioning of the provided on the second housing part 6 pressure port 7 in the radial direction possible.
  • the position of the pressure port 7, regardless of the geometry and the height of the pump stages 2 are flexibly adapted to the respective installation conditions.
  • the centrifugal pump 1 As in Fig. 2A is shown, the centrifugal pump 1 according to this embodiment, a first housing part 3 with a suction port 5, which is connected to the lower end 12 of an intermediate housing part 10. At the upper end 13 of the intermediate housing part 10, in turn, the second housing part 6, which has the pressure port 7, is arranged. A third housing part 20 is arranged between the second housing part 6 and a motor 24. The suction port 5 and the pressure port 7 are spaced apart at a first distance h 1 .
  • the intermediate housing part 10 is formed with a greater length, so that the suction port 5 is spaced at a second distance h 2 of the pressure port 7. Another difference is that in the in Fig.
  • Fig. 2B illustrated embodiment the motor 24 is connected directly to the second housing part 6 without a third housing part 20, as in Fig. 2A represented, in between.
  • Fig. 2C illustrated embodiment of the previously in FIGS. 2A and 2B illustrated embodiments in that here instead of a single pressure port 7 to the second housing part 6, two pressure ports 7, 7 'are provided and beyond two intermediate housing parts 10 between the first housing part 3 and the second housing part 6 are arranged. This results in a third distance h 3 for the first pressure port 7 and a fourth distance h 4 for the second pressure port 7 '.
  • Fig. 3 shows a perspective view of a centrifugal pump 1 according to an embodiment of the invention.
  • the centrifugal pump 1 comprises a first housing part 3 with suction connection 5, an intermediate housing part 10, a second housing part 6 with pressure connection 7 and a third housing part 20, to which a motor 24 is connected. All housing parts are connected to each other by means of several tie rods, z. B. clamping screws fixed. In addition, the housing parts are clamped in a built-in module 25. By means of the built-in module 25, the centrifugal pump 1 in a desired position by means of screws, which can be passed through the holes 26, 26 ', 26''26''',26''' fixable. Due to the modularity of the housing of the centrifugal pump 1 and the resulting flexibility in terms of the position of the pressure port 7, the centrifugal pump 1 can be adapted to almost any installation situation.

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

Abstract

The centrifugal pump (1) comprises a pump stage (2), a housing portion (3) having a suction connection (5), another housing portion (6) having a pressure connection (7), an intermediate housing portion (10), which delimits a channel (11) in sections leading to a pressure side of the pump stage, and a third housing portion (20). The intermediate housing portion and the latter housing portion are configured to be arranged in two different positions corresponding to the former and the third housing portions.

Description

Die Erfindung betrifft eine Kreiselpumpe gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a centrifugal pump according to the preamble of claim 1.

Kreiselpumpen mit einer oder mehr Stufen sind im Stand der Technik bekannt und sind aufgrund ihrer einfachen und robusten Bauart weit verbreitet.Centrifugal pumps with one or more stages are known in the art and are widely used because of their simple and robust design.

Bei derartigen Pumpen gibt es unterschiedliche Bauformen, so sind bei Inline-Pumpen Druck- und Saugstutzen achsgleich im Fuß der Pumpe angeordnet. Es sind jedoch auch Pumpen bekannt, bei denen der Saugstutzen im Pumpenfuß und der Druckstutzen in einem gesonderten Bauteil nahe dem oberen Ende der Pumpe angeordnet ist. So können zwar die Gehäuseteile in der Regel für Pumpen unterschiedlicher Druckstufen eingesetzt werden, die Anordnung von Saugstutzen und Druckstutzen zueinander bedingt jedoch stets eine Änderung der entsprechenden Bauteile, was die Teilevielfalt bei der Herstellung, Lagerung und Ersatzteilbevorratung erhöht.In such pumps, there are different types, so inline pumps pressure and suction are arranged coaxially in the foot of the pump. However, pumps are also known in which the suction nozzle in the pump base and the discharge nozzle are arranged in a separate component near the upper end of the pump. Thus, although the housing parts are usually used for pumps of different pressure levels, the arrangement of suction nozzle and discharge nozzle to each other, however, always requires a change of the corresponding components, which increases the variety of parts in the production, storage and spare parts inventory.

Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine gattungsgemäße Kreiselpumpe, insbesondere eine mehrstufige Kreiselpumpe so auszubilden, dass unterschiedliche Anschlussvarianten mit möglichst viel Gleichteilen aufgebaut werden können.Against this background, the invention has the object, a generic centrifugal pump, in particular a multi-stage centrifugal pump in such a way that different connection variants can be constructed with as many common parts.

Diese Aufgabe wird gemäß der Erfindung durch eine Kreiselpumpe mit den in Anspruch 1 angegebenen Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen definiert und der nachfolgenden Beschreibung angegeben.This object is achieved according to the invention by a centrifugal pump having the features specified in claim 1. Advantageous developments The invention are defined in the subclaims and the following description.

Die erfindungsgemäße Kreiselpumpe weist mindestens eine Pumpenstufe auf und hat ein mehrteiliges Gehäuse, mit einem ersten Gehäuseteil, welches einen Sauganschluss aufweist, mit einem zweiten Gehäuseteil, welches einen Druckanschluss aufweist und mit mindestens einem Zwischengehäuseteil, welches einen zu der Druckseite der mindestens einen Pumpenstufe führenden Kanal zumindest abschnittsweise begrenzt, und mit einem dritten Gehäuseteil, wobei das zweite Gehäuseteil und das mindestens eine Zwischengehäuseteil zwischen dem ersten und dem dritten Gehäuseteil angeordnet sind, wobei das mindestens eine Zwischengehäuseteil und das zweite Gehäuseteil zur Anordnung in mindestens zwei unterschiedlichen Stellungen bezogen auf das erste und dritte Gehäuseteil ausgebildet sind. Bei der erfindungsgemäßen Konfiguration wird der Freiheitsgrad für die Positionierung des zweiten Gehäuseteils, das den Druckanschluss aufweist, erhöht. Hierdurch können insbesondere der Druckanschluss in unterschiedlichen Stellungen angeordnet werden, ohne die Bauteile konstruktiv zu ändern.The centrifugal pump according to the invention has at least one pump stage and has a multi-part housing, with a first housing part, which has a suction port, with a second housing part, which has a pressure port and at least one intermediate housing part, which leading to the pressure side of the at least one pump stage channel at least partially limited, and with a third housing part, wherein the second housing part and the at least one intermediate housing part between the first and the third housing part are arranged, wherein the at least one intermediate housing part and the second housing part for arrangement in at least two different positions with respect to the first and third housing part are formed. In the configuration according to the invention, the degree of freedom for the positioning of the second housing part, which has the pressure connection, is increased. In this way, in particular, the pressure port can be arranged in different positions, without changing the components constructively.

Grundgedanke der vorliegenden Erfindung ist es, die vorhandenen Gehäuseteile, insbesondere das mindestens eine Zwischengehäuseteil und das zweite Gehäuseteil so auszubilden, dass diese zusammen oder auch einzeln in unterschiedlichen Stellungen bezogen auf das erste und dritte Gehäuseteil angeordnet werden können, sodass mit denselben Bauteilen der Druckanschluss in seiner Anordnung verändert werden kann ohne die Bauteile verändern zu müssen.The basic idea of the present invention is to design the existing housing parts, in particular the at least one intermediate housing part and the second housing part, so that they can be arranged together or individually in different positions with respect to the first and third housing part, so that the pressure connection in FIG Its arrangement can be changed without having to change the components.

In einfachster Form kann dies dadurch realisiert werden, dass zumindest das zweite Gehäuseteil um die Längsachse drehbar angeordnet ist, um so den Winkel zwischen Sauganschluss und Druckanschluss variieren zu können.In the simplest form, this can be realized in that at least the second housing part is arranged to be rotatable about the longitudinal axis so as to be able to vary the angle between the suction connection and the pressure connection.

Gemäß einer bevorzugten Ausführungsform sind das mindestens eine Zwischengehäuseteil und das zweite Gehäuseteil zur Anordnung in mindestens zwei unterschiedlichen Längsstellungen bezogen auf die Kreiselachse der Pumpe ausgebildet. Bei dieser Ausgestaltung der Kreiselpumpe wird eine veränderbare Positionierung des Druckanschlusses insbesondere in axialer und gegebenenfalls auch in radialer Richtung der Kreiselpumpe ermöglicht. Durch die erhöhten Freiheitsgrade in der Positionierung des Druckanschlusses zum Sauganschluss wird die Kreiselpumpe flexibler, und es kann eine bessere Anpassung an unterschiedliche Einbausituationen realisiert werden. Teure Umlenkstücke und Leitungen können eingespart werden, da das den Druckanschluss aufweisende zweite Gehäuseteil und das Zwischengehäuseteil in beliebiger Reihenfolge angeordnet werden können, was insbesondere heißt, dass mittels dieser Konfiguration der Druckanschluss im Hinblick auf die Kreiselpumpe oben oder weiter unten und unabhängig von den Stufen der Kreiselpumpe angeordnet werden kann.According to a preferred embodiment, the at least one intermediate housing part and the second housing part are designed for arrangement in at least two different longitudinal positions relative to the rotary axis of the pump. In this embodiment of the centrifugal pump a variable positioning of the pressure port is made possible, in particular in the axial and optionally also in the radial direction of the centrifugal pump. Due to the increased degrees of freedom in the positioning of the pressure port to the suction port, the centrifugal pump is more flexible, and it can be a better adaptation to different installation situations realized. Expensive deflectors and lines can be saved because the pressure connection having the second housing part and the intermediate housing part can be arranged in any order, which means in particular means that by means of this configuration, the pressure connection with respect to the centrifugal pump above or below and regardless of the stages Centrifugal pump can be arranged.

Gemäß einer bevorzugten Ausführungsform hat das mindestens eine Zwischengehäuseteil eine im Wesentlichen hohlzylindrische Form und begrenzt den zwischen der Druckseite der mindestens einen Pumpenstufe und dem Druckanschluss gebildeten Kanal, der in diesem Bereich als Ringkanal ausgebildet ist, außenseitig.According to a preferred embodiment, the at least one intermediate housing part has a substantially hollow cylindrical shape and limits the channel formed between the pressure side of the at least one pump stage and the pressure port, which is formed in this area as an annular channel, on the outside.

Gemäß einer weiteren bevorzugten Ausbildung ist das mindestens eine Zwischengehäuseteil und/oder das den Druckanschluss aufweisende zweite Gehäuseteil bezogen auf die Kreiselachse in unterschiedlichen Drehstellungen befestigbar.According to a further preferred embodiment, the at least one intermediate housing part and / or the second housing part having the pressure connection can be fastened in different rotational positions relative to the gyro axis.

Vorzugsweise sind das mindestens eine Zwischengehäuseteil und das den Druckanschluss aufweisende zweite Gehäuseteil an mindestens einer Seite, die an ein weiteres Gehäuseteil anschließt, anschlussgleich ausgebildet.Preferably, the at least one intermediate housing part and the second housing part having the pressure connection are at least one side, which adjoins another housing part, formed connection same.

Gemäß einer weiteren bevorzugten Ausführungsform sind das mindestens eine Zwischengehäuseteil und das den Druckanschluss aufweisende zweite Gehäuseteil an zwei Seiten, die jeweils an ein weiteres Gehäuseteil anschließen, anschlussgleich ausgebildet. Dies ermöglicht eine beliebige Anordnung der einzelnen Komponenten zueinander.According to a further preferred embodiment, the at least one intermediate housing part and the second housing part having the pressure connection are formed on two sides, which each connect to a further housing part, with the same connection. This allows any arrangement of the individual components to each other.

Besonders bevorzugt ist es, wenn das mindestens eine Zwischengehäuseteil und das den Druckanschluss aufweisende zweite Gehäuseteil modular aufgebaut sind.It is particularly preferred if the at least one intermediate housing part and the second housing part having the pressure connection are of modular design.

Vorzugsweise sind das mindestens eine Zwischengehäuseteil und das den Druckanschluss aufweisende zweite Gehäuseteil zwischen dem ersten und dem dritten Gehäuseteil eingespannt.Preferably, the at least one intermediate housing part and the second housing part having the pressure connection are clamped between the first and the third housing part.

Gemäß einer weiteren bevorzugten Ausführungsform sind zwei Gehäuseteile unter Eingliederung eines Dichtrings, vorzugsweise eines O-Ring verbunden.According to a further preferred embodiment, two housing parts are connected by incorporation of a sealing ring, preferably an O-ring.

Darüber hinaus ist es bevorzugt, wenn die Anschlüsse zwischen benachbarten Gehäuseteilen derart ausgebildet sind, dass die Gehäuseaußenwandungen zueinander fluchten und das stirnseitige Ende eines Gehäuseteils in ein demgegenüber aufgeweitetes stirnseitiges Ende des daran anschließenden Gehäuseteils formschlüssig eingreift.Moreover, it is preferred if the connections between adjacent housing parts are formed such that the housing outer walls are aligned with one another and the front end of a housing part engages in a form-fitting manner in a contrast expanded end face of the adjoining housing part.

Die Erfindung wird nachfolgend anhand von in der Zeichnung dargestellten Ausführungsformen näher erläutert. Es zeigen:

Fig. 1
einen Schnitt durch eine Kreiselpumpe gemäß einer Ausführungsform der Erfindung;
Fig. 2A, 2B, 2C
jeweilige schematische Darstellungen von unterschiedlich konfigurierten Kreiselpumpen gemäß Ausführungsformen der Erfindung; und
Fig. 3
eine perspektivische Ansicht einer Kreiselpumpe gemäß einer Ausführungsform der Erfindung.
The invention will be explained in more detail with reference to embodiments shown in the drawing. Show it:
Fig. 1
a section through a centrifugal pump according to an embodiment of the invention;
Fig. 2A, 2B, 2C
respective schematic representations of differently configured centrifugal pumps according to embodiments of the invention; and
Fig. 3
a perspective view of a centrifugal pump according to an embodiment of the invention.

Figur 1 zeigt einen Schnitt durch eine Kreiselpumpe 1 gemäß einer Ausführungsform der Erfindung. Die Kreiselpumpe 1 ist hier mehrstufig mit zehn Pumpenstufen 2 ausgebildet, welche hier nicht weiter im Detail beschrieben werden. Alternativ kann die Kreiselpumpe 1 jedoch auch mit z. B. zwölf Pumpenstufen 2 oder jeder beliebigen anderen Anzahl von Pumpenstufen 2 ausgebildet sein. Weiterhin weist die Kreiselpumpe 1 ein erstes Gehäuseteil 3, welches mit einem einen Saugstutzen 4 aufweisenden Sauganschluss 5 versehen ist, durch welchen ein zu förderndes Fluid in die Kreiselpumpe 1 eintritt, auf. An einem zweiten Gehäuseteil 6 ist ein Druckanschluss 7 mit einem Druckstutzen 8 vorgesehen, durch welchen das zu fördernde Fluid aus der Kreiselpumpe austritt. Sowohl der Sauganschluss 5 als auch der Druckanschluss 6 ist mit jeweiligen Anschlussflanschen 9 versehen. Zwischen dem ersten Gehäuseteil 3 und dem zweiten Gehäuseteil 6 ist ein hohlzylindrisch ausgebildetes Zwischengehäuseteil 10 angeordnet. FIG. 1 shows a section through a centrifugal pump 1 according to an embodiment of the invention. The centrifugal pump 1 is formed here in multiple stages with ten pump stages 2, which will not be described in detail here. Alternatively, the centrifugal pump 1 but also with z. B. twelve pump stages 2 or any other number of pump stages 2 may be formed. Furthermore, the centrifugal pump 1, a first housing part 3, which is provided with a suction nozzle 4 having a suction port 5, through which a fluid to be conveyed enters the centrifugal pump 1, on. On a second housing part 6, a pressure port 7 is provided with a pressure port 8 through which exits the fluid to be delivered from the centrifugal pump. Both the suction port 5 and the pressure port 6 is provided with respective connecting flanges 9. Between the first housing part 3 and the second housing part 6, a hollow cylindrical formed intermediate housing part 10 is arranged.

Das Zwischengehäuseteil 10 begrenzt einen durch die Pumpenstufen 2 und den Druckanschluss 7 gebildeten Kanal 11, der in diesem Bereich als Ringkanal ausgebildet ist, außenseitig. Das Zwischengehäuseteil 10 und das den Druckanschluss 7 aufweisende zweite Gehäuseteil 6 sind in der Ausführungsform an zwei Seiten, die jeweils an ein weiteres Gehäuseteil anschließen, anschlussgleich ausgebildet, d. h. sie sind so ausgebildet, um miteinander zu einer Einheit verbindbar zu sein. Wie in Fig. 1 erkennbar ist, ist das erste Gehäuseteil 3 mit einem unteren Ende 12 des Zwischengehäuseteils 10 verbunden, und das zweite Gehäuseteil 6 ist mit einem oberen Ende 13 des Zwischengehäuseteils 10 verbunden. Dabei sind die Anschlüsse zwischen den jeweils benachbarten Gehäuseteilen derart ausgebildet, dass die Gehäuseaußenwandung 15 des ersten Gehäuseteils 3, die Gehäusewandung 16 des Zwischengehäuseteils 10 und die Gehäuseaußenwandung 17 des zweiten Gehäuseteils 6 zueinander fluchten. Weiterhin greift dabei das stirnseitige untere Ende 12 des Zwischengehäuseteils 10 in ein demgegenüber aufgeweitetes Ende 18 des ersten Gehäuseteils 3 formschlüssig ein, und das stirnseitige obere Ende 13 des Zwischengehäuseteils 10 greift in ein demgegenüber aufgeweitetes Ende 19 des zweiten Gehäuseteils 6 formschlüssig ein. Zur Abdichtung sind an den jeweiligen Verbindungsabschnitten jeweils Dichtringe 14, die hier als O-Ringe ausgeführt sind, vorgesehen. Schließlich umfasst die Kreiselpumpe 1 darüber hinaus ein drittes Gehäuseteil 20, welches den Deckel der Kreiselpumpe 1 bildet und zum Anschluss der Kreiselpumpe 1 an einen Motor (hier nicht dargestellt) ausgebildet ist. Das dritte Gehäuseteil 20 ist mit dem oberen stirnseitigen Ende 21 des zweiten Gehäuseteils 6 verbunden, wobei auch hier der Verbindungsabschnitt mittels eines Dichtrings 14 abgedichtet ist. Eine Pumpenwelle 22, die durch den hier nicht dargestellten Motor antreibbar ist, und welche die einzelnen Pumpenstufen 2 durchgreift und im dritten Gehäuseteil 20 endet, ist mittig entlang der Längsachse der Kreiselpumpe 1 angeordnet und bildet somit die Kreiselachse 23.The intermediate housing part 10 delimits a channel 11 formed by the pump stages 2 and the pressure connection 7, which channel is designed as an annular channel in this area, on the outside. In the embodiment, the intermediate housing part 10 and the second housing part 6, which has the pressure connection 7, are of identical connection on two sides, which each connect to a further housing part, ie they are designed to be connectable to one another in one unit. As in Fig. 1 can be seen, the first housing part 3 with a lower end 12 of the Intermediate housing part 10 is connected, and the second housing part 6 is connected to an upper end 13 of the intermediate housing part 10. The connections between the respectively adjacent housing parts are designed such that the housing outer wall 15 of the first housing part 3, the housing wall 16 of the intermediate housing part 10 and the housing outer wall 17 of the second housing part 6 are aligned with each other. Furthermore engages the front end lower end 12 of the intermediate housing part 10 in a contrast expanded end 18 of the first housing part 3 a form-fitting, and the frontal upper end 13 of the intermediate housing part 10 engages in a contrast expanded end 19 of the second housing part 6 a form fit. To seal each sealing rings 14, which are designed here as O-rings, are provided at the respective connecting portions. Finally, the centrifugal pump 1 further comprises a third housing part 20, which forms the lid of the centrifugal pump 1 and for connecting the centrifugal pump 1 to a motor (not shown here) is formed. The third housing part 20 is connected to the upper front end 21 of the second housing part 6, wherein here too the connecting portion is sealed by means of a sealing ring 14. A pump shaft 22, which is drivable by the motor, not shown here, and which passes through the individual pump stages 2 and ends in the third housing part 20, is arranged centrally along the longitudinal axis of the centrifugal pump 1 and thus forms the gyro axis 23rd

Fig. 2A, 2B, 2C zeigen jeweilige schematische Darstellungen von unterschiedlich konfigurierten Kreiselpumpen 1 gemäß Ausführungsformen der Erfindung, um die variable axiale Beabstandung des den Sauganschluss 5 enthaltenden ersten Gehäuseteils 3 zu dem den Druckanschluss 7 enthaltenden zweiten Gehäuseteils 6 zu verdeutlichen, die durch die erfindungsgemäße Konfiguration der Kreiselpumpe 1 und ihren modularen Aufbau realisierbar ist. Außerdem ist gemäß den hier dargestellten Ausführungsformen neben der axialen Variabilität durch vorsehen des Kanals 11 als Ringkanal, wie in Zusammenhang mit Fig. 1 beschrieben wurde, auch eine variable Positionierung des an dem zweiten Gehäuseteil 6 vorgesehenen Druckanschlusses 7 in radialer Richtung möglich. Somit kann die Position des Druckanschlusses 7 unabhängig von der Geometrie und der Höhe der Pumpenstufen 2 (siehe Fig. 1) flexibel an die jeweiligen Einbauverhältnisse angepasst werden. Fig. 2A, 2B, 2C show respective schematic representations of differently configured centrifugal pumps 1 according to embodiments of the invention to illustrate the variable axial spacing of the first housing part 3 containing the suction port 5 to the second housing part 6 containing the pressure port 7, which by the inventive configuration of the centrifugal pump 1 and its modular Construction is feasible. In addition, according to the embodiments shown here in addition to the axial variability Provide the channel 11 as an annular channel, as in connection with Fig. 1 has been described, also a variable positioning of the provided on the second housing part 6 pressure port 7 in the radial direction possible. Thus, the position of the pressure port 7, regardless of the geometry and the height of the pump stages 2 (see Fig. 1 ) are flexibly adapted to the respective installation conditions.

Wie in Fig. 2A dargestellt ist, weist die Kreiselpumpe 1 gemäß dieser Ausführungsform ein erstes Gehäuseteil 3 mit einem Sauganschluss 5 auf, welches mit dem unteren Ende 12 eines Zwischengehäuseteils 10 verbunden ist. An dem oberen Ende 13 des Zwischengehäuseteils 10 ist wiederum das zweite Gehäuseteil 6, welches den Druckanschluss 7 aufweist, angeordnet. Ein drittes Gehäuseteil 20 ist zwischen dem zweiten Gehäuseteil 6 und einem Motor 24 angeordnet. Der Sauganschluss 5 und der Druckanschluss 7 sind in einem ersten Abstand h1 voneinander beabstandet. Die in Fig. 2B dargestellte Ausführungsform unterscheidet sich von der in Fig. 2A dargestellten Ausführungsform dadurch, dass hier das Zwischengehäuseteil 10 mit einer größeren Länge ausgebildet ist, so dass der Sauganschluss 5 in einem zweiten Abstand h2 von dem Druckanschluss 7 beabstandet ist. Ein weiterer Unterschied ist, dass in der in Fig. 2B dargestellten Ausführungsform der Motor 24 direkt an das zweite Gehäuseteil 6 angeschlossen ist, ohne dass sich ein drittes Gehäuseteil 20, wie in Fig. 2A dargestellt, dazwischen befindet. Schließlich unterscheidet sich die in Fig. 2C dargestellte Ausführungsform von den zuvor in Fig. 2A und 2B dargestellten Ausführungsformen dadurch, dass hier anstelle eines einzigen Druckanschlusses 7 an dem zweiten Gehäuseteil 6 zwei Druckanschlüsse 7, 7ʹ vorgesehen sind und darüber hinaus zwei Zwischengehäuseteile 10 zwischen dem ersten Gehäuseteil 3 und dem zweiten Gehäuseteil 6 angeordnet sind. Hierdurch ergibt sich ein dritter Abstand h3 für den ersten Druckanschluss 7 und ein vierter Abstand h4 für den zweiten Druckanschluss 7ʹ.As in Fig. 2A is shown, the centrifugal pump 1 according to this embodiment, a first housing part 3 with a suction port 5, which is connected to the lower end 12 of an intermediate housing part 10. At the upper end 13 of the intermediate housing part 10, in turn, the second housing part 6, which has the pressure port 7, is arranged. A third housing part 20 is arranged between the second housing part 6 and a motor 24. The suction port 5 and the pressure port 7 are spaced apart at a first distance h 1 . In the Fig. 2B illustrated embodiment differs from the in Fig. 2A illustrated embodiment in that here the intermediate housing part 10 is formed with a greater length, so that the suction port 5 is spaced at a second distance h 2 of the pressure port 7. Another difference is that in the in Fig. 2B illustrated embodiment, the motor 24 is connected directly to the second housing part 6 without a third housing part 20, as in Fig. 2A represented, in between. Finally, the in. Differs Fig. 2C illustrated embodiment of the previously in FIGS. 2A and 2B illustrated embodiments in that here instead of a single pressure port 7 to the second housing part 6, two pressure ports 7, 7 'are provided and beyond two intermediate housing parts 10 between the first housing part 3 and the second housing part 6 are arranged. This results in a third distance h 3 for the first pressure port 7 and a fourth distance h 4 for the second pressure port 7 '.

Fig. 3 zeigt eine perspektivische Ansicht einer Kreiselpumpe 1 gemäß einer Ausführungsform der Erfindung. Wie hier erkennbar ist, umfasst die Kreiselpumpe 1 ein erstes Gehäuseteil 3 mit Sauganschluss 5, ein Zwischengehäuseteil 10, ein zweites Gehäuseteil 6 mit Druckanschluss 7 und ein drittes Gehäuseteil 20, an welches ein Motor 24 angeschlossen ist. Alle Gehäuseteile sind aneinander mittels mehrerer Zuganker, z. B. Spannschrauben, fixiert. Darüber hinaus sind die Gehäuseteile in einem Einbaumodul 25 eingespannt. Mittels des Einbaumoduls 25 ist die Kreiselpumpe 1 in einer gewünschten Position mittels Schrauben, welche durch die Löcher 26, 26ʹ, 26ʹʹ 26ʹʹʹ, 26ʹʹʹʹ hindurchführbar sind, fixierbar. Durch die Modularität des Gehäuses der Kreiselpumpe 1 und die dadurch erlangte Flexibilität im Hinblick auf die Position des Druckanschlusses 7 kann die Kreiselpumpe 1 an nahezu jegliche Einbausituation angepasst werden. Fig. 3 shows a perspective view of a centrifugal pump 1 according to an embodiment of the invention. As can be seen here, the centrifugal pump 1 comprises a first housing part 3 with suction connection 5, an intermediate housing part 10, a second housing part 6 with pressure connection 7 and a third housing part 20, to which a motor 24 is connected. All housing parts are connected to each other by means of several tie rods, z. B. clamping screws fixed. In addition, the housing parts are clamped in a built-in module 25. By means of the built-in module 25, the centrifugal pump 1 in a desired position by means of screws, which can be passed through the holes 26, 26 ', 26''26''',26'''' fixable. Due to the modularity of the housing of the centrifugal pump 1 and the resulting flexibility in terms of the position of the pressure port 7, the centrifugal pump 1 can be adapted to almost any installation situation.

Bezugszeichenreference numeral

11
Kreiselpumperotary pump
22
Pumpenstufepump stage
33
erstes Gehäuseteilfirst housing part
44
SauganschlussstutzenSauganschlussstutzen
55
Sauganschlusssuction
66
zweites Gehäuseteilsecond housing part
7, 7ʹ7, 7'
Druckanschlusspressure connection
88th
DruckanschlussstutzenPressure connection piece
99
Anschlussflanschflange
1010
ZwischengehäuseteilIntermediate housing part
1111
Kanalchannel
1212
unteres Ende des Zwischengehäuseteilslower end of the intermediate housing part
1313
oberes Ende des ZwischengehäuseteilsUpper end of the intermediate housing part
1414
Dichtringeseals
1515
Gehäuseaußenwandung des ersten GehäuseteilsHousing outer wall of the first housing part
1616
Gehäuseaußenwandung des ZwischengehäuseteilsHousing outer wall of the intermediate housing part
1717
Gehäuseaußenwandung des zweiten GehäuseteilsHousing outer wall of the second housing part
1818
aufgeweitetes Ende des ersten Gehäuseteilsflared end of the first housing part
1919
aufgeweitetes Ende des zweiten Gehäuseteilsflared end of the second housing part
2020
drittes Gehäuseteilthird housing part
2121
oberes Ende des zweiten Gehäuseteilsupper end of the second housing part
2222
Pumpenwellepump shaft
2323
Kreiselachsegyro axis
2424
Motorengine
2525
Einbaumodulbuilt-in module
26, 26ʹ, 26ʹʹ, 26ʹʹʹ, 26ʹʹʹʹ26, 26', 26'', 26''', 26''''
Löcherholes

Claims (10)

Kreiselpumpe (1) mit mindestens einer Pumpenstufe (2), mit einem mehrteiligen Gehäuse, mit einem ersten Gehäuseteil (3), welches einen Sauganschluss (5) aufweist, mit einem zweiten Gehäuseteil (6), welches einen Druckanschluss (7) aufweist und mit mindestens einem Zwischengehäuseteil (10), welches einen zu der Druckseite der mindestens einen Pumpenstufe (2) führenden Kanal (11) zumindest abschnittsweise begrenzt, und mit einem dritten Gehäuseteil (20), wobei das zweite Gehäuseteil (6) und das mindestens eine Zwischengehäuseteil (10) zwischen dem ersten und dem dritten Gehäuseteil (3, 20) angeordnet sind, dadurch gekennzeichnet, dass das mindestens eine Zwischengehäuseteil (10) und das zweite Gehäuseteil (6) zur Anordnung in mindestens zwei unterschiedlichen Stellungen bezogen auf das erste und dritte Gehäuseteil (3, 20) ausgebildet sind.Centrifugal pump (1) with at least one pump stage (2), with a multi-part housing, with a first housing part (3) having a suction port (5), with a second housing part (6) having a pressure port (7) and with at least one intermediate housing part (10) which at least partially delimits a channel (11) leading to the pressure side of the at least one pump stage (2), and with a third housing part (20), wherein the second housing part (6) and the at least one intermediate housing part ( 10) between the first and the third housing part (3, 20) are arranged, characterized in that the at least one intermediate housing part (10) and the second housing part (6) for arrangement in at least two different positions with respect to the first and third housing part ( 3, 20) are formed. Kreiselpumpe (1) nach Anspruch 1, dadurch gekennzeichnet, dass das mindestens eine Zwischengehäuseteil (10) und das zweite Gehäuseteil (6) zur Anordnung in mindestens zwei unterschiedlichen Längsstellungen bezogen auf die Kreiselachse (23) der Pumpe ausgebildet sind.Centrifugal pump (1) according to claim 1, characterized in that the at least one intermediate housing part (10) and the second housing part (6) are designed to be arranged in at least two different longitudinal positions relative to the rotary axis (23) of the pump. Kreiselpumpe (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das mindestens eine Zwischengehäuseteil (10) eine im Wesentlichen hohlzylindrische Form hat und den zwischen der Druckseite der mindestens einen Pumpenstufe (2) und dem Druckanschluss (7) gebildeten Kanal (11), der in diesem Bereich als Ringkanal ausgebildet ist, außenseitig begrenzt.Centrifugal pump (1) according to claim 1 or 2, characterized in that the at least one intermediate housing part (10) has a substantially hollow cylindrical shape and the channel (11) formed between the pressure side of the at least one pump stage (2) and the pressure port (7). , which is formed in this area as an annular channel, bounded on the outside. Kreiselpumpe (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das mindestens eine Zwischengehäuseteil (10) und/oder das den Druckanschluss (7) aufweisende zweite Gehäuseteil (6) bezogen auf die Kreiselachse (23) in unterschiedlichen Drehstellungen befestigbar ist.Centrifugal pump (1) according to one of the preceding claims, characterized in that the at least one intermediate housing part (10) and / or the pressure connection (7) having the second housing part (6) relative to the gyroscope axis (23) in different rotational positions can be fastened. Kreiselpumpe (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das mindestens eine Zwischengehäuseteil (10) und das den Druckanschluss (7) aufweisende zweite Gehäuseteil (6) an mindestens einer Seite, die an ein weiteres Gehäuseteil anschließt, anschlussgleich ausgebildet sind.Centrifugal pump (1) according to any one of the preceding claims, characterized in that the at least one intermediate housing part (10) and the second housing part (6) having the pressure port (7) are formed on at least one side, which connects to a further housing part, connection. Kreiselpumpe (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das mindestens eine Zwischengehäuseteil (10) und das den Druckanschluss (7) aufweisende zweite Gehäuseteil (6) an zwei Seiten, die jeweils an ein weiteres Gehäuseteil anschließen, anschlussgleich ausgebildet sind.Centrifugal pump (1) according to one of the preceding claims, characterized in that the at least one intermediate housing part (10) and the pressure connection (7) having the second housing part (6) on two sides, each of which connects to a further housing part, are formed connection same. Kreiselpumpe (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das mindestens eine Zwischengehäuseteil (10) und das den Druckanschluss (7) aufweisende zweite Gehäuseteil (6) modular aufgebaut sind.Centrifugal pump (1) according to one of the preceding claims, characterized in that the at least one intermediate housing part (10) and the second housing part (6) having the pressure connection (7) are of modular design. Kreiselpumpe (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das mindestens eine Zwischengehäuseteil (10) und das den Druckanschluss (7) aufweisende zweite Gehäuseteil (6) zwischen dem ersten und dem dritten Gehäuseteil (3, 20) eingespannt sind.Centrifugal pump (1) according to one of the preceding claims, characterized in that the at least one intermediate housing part (10) and the second housing part (6) having the pressure connection (7) are clamped between the first and the third housing part (3, 20). Kreiselpumpe (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwei Gehäuseteile unter Eingliederung eines Dichtrings (14), vorzugsweise eines O-Ring verbunden sind.Centrifugal pump (1) according to one of the preceding claims, characterized in that two housing parts are connected by incorporation of a sealing ring (14), preferably an O-ring. Kreiselpumpe (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Anschlüsse zwischen benachbarten Gehäuseteilen (3, 6, 10, 20) derart ausgebildet sind, dass die Gehäuseaußenwandungen (15, 16, 17) zueinander fluchten und das stirnseitige Ende eines Gehäuseteils (3, 6, 10, 20) in ein demgegenüber aufgeweitetes stirnseitiges Ende des daran anschließenden Gehäuseteils (3, 6, 10, 20) formschlüssig eingreift.Centrifugal pump (1) according to any one of the preceding claims, characterized in that the connections between adjacent housing parts (3, 6, 10, 20) are formed such that the Gehäuseaußenwandungen (15, 16, 17) are aligned with each other and the front end of a housing part (3, 6, 10, 20) engages positively in a contrast expanded end face of the adjoining housing part (3, 6, 10, 20).
EP11195186.9A 2011-12-22 2011-12-22 Centrifugal pump Active EP2607703B1 (en)

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EP11195186.9A EP2607703B1 (en) 2011-12-22 2011-12-22 Centrifugal pump
AU2012265619A AU2012265619B2 (en) 2011-12-22 2012-12-19 Centrifugal pump
US13/721,243 US10247202B2 (en) 2011-12-22 2012-12-20 Centrifugal pump
RU2012155868/06A RU2556948C2 (en) 2011-12-22 2012-12-21 Centrifugal pump
CN201210566980.2A CN103174654B (en) 2011-12-22 2012-12-24 Centrifugal pump

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US20130164125A1 (en) 2013-06-27
AU2012265619B2 (en) 2014-08-07
US10247202B2 (en) 2019-04-02
AU2012265619A1 (en) 2013-08-01
EP2607703B1 (en) 2014-06-18
RU2012155868A (en) 2014-06-27
CN103174654A (en) 2013-06-26

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