EP0919727A1 - Centrifugal motorpump - Google Patents

Centrifugal motorpump Download PDF

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Publication number
EP0919727A1
EP0919727A1 EP98122260A EP98122260A EP0919727A1 EP 0919727 A1 EP0919727 A1 EP 0919727A1 EP 98122260 A EP98122260 A EP 98122260A EP 98122260 A EP98122260 A EP 98122260A EP 0919727 A1 EP0919727 A1 EP 0919727A1
Authority
EP
European Patent Office
Prior art keywords
pipe
pump
outlet
pump housing
inlet
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.)
Withdrawn
Application number
EP98122260A
Other languages
German (de)
French (fr)
Inventor
Günter Kaul
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.)
Wilo GmbH
Original Assignee
Wilo GmbH
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 Wilo GmbH filed Critical Wilo GmbH
Priority to DE29824911U priority Critical patent/DE29824911U1/en
Publication of EP0919727A1 publication Critical patent/EP0919727A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0077—Safety measures
    • F04D15/0083—Protection against sudden pressure change, e.g. check valves
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials 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
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the present invention relates to a motor centrifugal pump, especially as a domestic water circulation pump with an am Electric motor attached pump housing with inlet and outlet.
  • the object of the invention is to provide a motor centrifugal pump to improve the type mentioned so that the Assembly effort is significantly reduced.
  • a pipe connector permanently attached is to which the intake pipe can be attached and that is a valve (Shut-off device), in particular a shut-off device and / or includes a backflow prevention device.
  • Pipe connecting element by press fitting, soldering, welding or Glue is attached. It is particularly advantageous if that Pump housing made of plastic and the pipe connection element is made of plastic or metal.
  • the pump housing 1 forms a leading to the pump chamber Inlet channel 4 and one emanating from the pump chamber Outlet channel 5.
  • the inlet channel 4 ends at one Housing inlet connector 6 and the outlet channel at one Housing outlet connector 7.
  • In the inlet connector 6 is a Pipe connector 8 and in the outlet 7 Pipe connector 9 inserted, the tapered end of the respective pipe connecting element 8, 9 an annular seal 10, with which the respective tapered end in Inlet port or outlet port lies. Stop this Pipe connection element on the pump housing is in each case Press fit, soldering or welding.
  • the first pipe connector 8 on the inlet nozzle 6 contains a shut-off device 11, and the second pipe connecting element 9 at the outlet port 7 contains a check valve 12.
  • the pump housing 1 opposite end with a bead with an inserted ring seal provided so that after inserting the connecting pipe 13 or 14th this is held by pressing.
  • the pump housing 1 is preferably made of plastic and the pipe connecting elements 8.9 made of metal.

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

Abstract

The circulation pump has a pump housing (1) secured to an electric motor (3) and provided with pipe coupling elements (8,9) permanently connected to the pump inlet (6) and/or outlet (7), together with a flow blocking valve (11) and/or a non-return valve (12). The pump housing may be made of plastic, with the pipe coupling elements made of metal or plastic.

Description

Die vorliegende Erfindung betrifft eine Motorkreiselpumpe, insbesondere als Brauchwasserzirkulationspumpe mit einem am Elektromotor befestigten Pumpengehäuse mit Ein- und Auslaß.The present invention relates to a motor centrifugal pump, especially as a domestic water circulation pump with an am Electric motor attached pump housing with inlet and outlet.

Es ist bekannt, am Ein- und Auslaß des Gehäuses einer Motorkreiselpumpe jeweils ein Rohrverbindungselement anzuschrauben, das ein Absperrorgan enthält und an dem durch eine Überwurfmutter das Anschlußrohr der jeweiligen Rohrleitung befestigbar ist. Eine solche Vorrichtung wird in mehreren Teilen angeliefert, so daß für den Benutzer, insbesondere für den Installateur ein erheblicher Arbeitsaufwand für die Montage erforderlich ist.It is known at the inlet and outlet of the housing Motor centrifugal pump each have a pipe connection element screw, which contains a shut-off device and on the through a union nut the connecting pipe of the respective Pipe is attachable. Such a device is in delivered several parts so that for the user, a considerable one especially for the installer Workload for assembly is required.

Aufgabe der Erfindung ist es, eine Motorkreiselpumpe der eingangs genannten Art so zu verbessern, daß der Montageaufwand erheblich verringert ist.The object of the invention is to provide a motor centrifugal pump to improve the type mentioned so that the Assembly effort is significantly reduced.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß am Ein- und/oder Auslaß ein Rohrverbindungselement unlösbar befestigt ist, an dem das Ansaugrohr befestigbar ist und das ein Ventil (Absperrorgan), insbesondere eine Absperrvorrichtung und/oder eine Rückflußverhinderungsvorrichtung enthält. This object is achieved in that on and / or Outlet a pipe connector permanently attached is to which the intake pipe can be attached and that is a valve (Shut-off device), in particular a shut-off device and / or includes a backflow prevention device.

Hierdurch bilden die Rohrverbindungselemente einschließlich der darin angeordneten Absperrorgange mit dem Pumpengehäuse bzw. der Pumpe eine Einheit, so daß ein kompaktes Aggregat vorliegt, das nur noch an die Rohrenden angeschlossen werden muß. Es brauchen keine Rohrverbindungselemente bzw. Fittings am Pumpengehäuse vom Monteur angeschlossen zu werden, sondern das fertige Kompaktaggregat ist nur noch an den Leitungen zu befestigen.As a result, the pipe connecting elements including the shut-off valve with the pump housing or the pump a unit, so that a compact unit that is only connected to the pipe ends got to. No pipe connection elements or fittings are required to be connected to the pump housing by the installer, but the finished compact unit is only closed on the lines fasten.

Vorzugsweise wird hierbei vorgeschlagen, daß das Rohrverbindungselement durch Pressitz, Löten, Schweißen oder Kleben befestigt ist. Besonders vorteilhaft ist es, wenn das Pumpengehäuse aus Kunststoff und das Rohrverbindungselement aus Kunststoff oder Metall ist.It is preferably proposed that the Pipe connecting element by press fitting, soldering, welding or Glue is attached. It is particularly advantageous if that Pump housing made of plastic and the pipe connection element is made of plastic or metal.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung im Schnitt dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is in the drawing in Section shown and is described in more detail below.

Am Pumpengehäuse 1 ist auf einer Seite durch eine Überwurfmutter 2 ein Elektromotor 3 angeschraubt. Die den Pumpenmotor aufweisende Pumpenkammer ist nicht dargestellt, sondern durch die Überwurfmutter 2 verdeckt.On the pump housing 1 is on one side by a An electric motor 3 is screwed onto the union nut 2. The the Pump chamber having a pump motor is not shown, but covered by the union nut 2.

Das Pumpengehäuse 1 bildet einen zur Pumpenkammer führenden Einlaßkanal 4 und einen von der Pumpenkammer ausgehenden Auslaßkanal 5. Der Einlaßkanal 4 endet an einem Gehäuseeinlaßstutzen 6 und der Auslaßkanal an einem Gehauseauslaßstutzen 7. In den Einlaßstutzen 6 ist ein Rohrverbindungselement 8 und in den Auslaßstutzen 7 ein Rohrverbindungselement 9 eingesteckt, wobei das verjüngte Ende des jeweiligen Rohrverbindungselements 8, 9 eine Ringdichtung 10 aufweist, mit der das jeweils verjüngte Ende im Einlaßstutzen bzw. Auslaßstutzen einliegt. Der Halt dieses Rohrverbindungselements am Pumpengehäuse ist jeweils durch Pressitz, Löten oder Schweißen gegeben. The pump housing 1 forms a leading to the pump chamber Inlet channel 4 and one emanating from the pump chamber Outlet channel 5. The inlet channel 4 ends at one Housing inlet connector 6 and the outlet channel at one Housing outlet connector 7. In the inlet connector 6 is a Pipe connector 8 and in the outlet 7 Pipe connector 9 inserted, the tapered end of the respective pipe connecting element 8, 9 an annular seal 10, with which the respective tapered end in Inlet port or outlet port lies. Stop this Pipe connection element on the pump housing is in each case Press fit, soldering or welding.

Das erste Rohrverbindungselement 8 am Einlaßstutzen 6 enthält ein Absperrorgan 11, und das zweite Rohrverbindungselement 9 am Auslaßstutzen 7 enthält ein Rückschlagventil 12. Bei jedem der beiden Rohrverbindungselemente ist das dem Pumpengehäuse 1 abgewandte Ende mit einem Wulst mit einliegender Ringdichtung versehen, so daß nach Einstecken des Anschlußrohres 13 bzw. 14 dieses durch Verpressen gehalten ist.The first pipe connector 8 on the inlet nozzle 6 contains a shut-off device 11, and the second pipe connecting element 9 at the outlet port 7 contains a check valve 12. At each of the two pipe connection elements is the pump housing 1 opposite end with a bead with an inserted ring seal provided so that after inserting the connecting pipe 13 or 14th this is held by pressing.

Das Pumpengehäuse 1 besteht vorzugsweise aus Kunststoff und die Rohrverbindungselemente 8,9 aus Metall.The pump housing 1 is preferably made of plastic and the pipe connecting elements 8.9 made of metal.

Claims (3)

Motorkreiselpumpe, insbesondere als Brauchwasserzirkulationspumpe mit einem am Elektromotor (3) befestigten Pumpengehäuse (1) mit Ein- und Auslaß, dadurch gekennzeichnet, daß am Ein-und/oder Auslaß (6,7) ein Rohrverbindungselemnent (8,9) unlösbar befestigt ist, an dem das Anschlußrohr (13,14) befestigbar ist und das ein Ventil (Absperrorgan), insbesondere eine Absperrvorrichtung (11) und/oder eine Rückflußverhinderungsvorrichtung (12) enthält.Motor centrifugal pump, in particular as a process water circulation pump with a pump housing (1) with inlet and outlet attached to the electric motor (3), characterized in that a pipe connection element (8,9) is permanently attached to the inlet and / or outlet (6,7), to which the connecting pipe (13, 14) can be fastened and which contains a valve (shut-off device), in particular a shut-off device (11) and / or a backflow prevention device (12). Motorkreiselpumpe nach Anspruch 1, dadurch gekennzeichnet, daß das Rohrverbindungselement (8,9) durch Pressitz, Löten, Schweißen oder Kleben befestigt ist.Motor centrifugal pump according to claim 1, characterized in that the pipe connecting element (8,9) is fixed by press fitting, soldering, welding or gluing. Motorkreiselpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Pumpengehäuse (1) aus Kunststoff und das Rohrverbindungselement (8,9) aus Kunststoff oder Metall besteht.Motor centrifugal pump according to claim 1 or 2, characterized in that the pump housing (1) consists of plastic and the pipe connecting element (8,9) consists of plastic or metal.
EP98122260A 1997-11-28 1998-11-24 Centrifugal motorpump Withdrawn EP0919727A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29824911U DE29824911U1 (en) 1997-11-28 1998-11-24 Electric motor circulation pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19752762 1997-11-28
DE19752762A DE19752762A1 (en) 1997-11-28 1997-11-28 Motor centrifugal pump

Publications (1)

Publication Number Publication Date
EP0919727A1 true EP0919727A1 (en) 1999-06-02

Family

ID=7850090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122260A Withdrawn EP0919727A1 (en) 1997-11-28 1998-11-24 Centrifugal motorpump

Country Status (2)

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EP (1) EP0919727A1 (en)
DE (1) DE19752762A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0979950A1 (en) * 1998-08-13 2000-02-16 WILO GmbH Centrifugal pump with check-valve
EP1079115A2 (en) * 1999-08-24 2001-02-28 WILO GmbH Pump casing made of plastic
EP1193397A2 (en) * 2000-09-29 2002-04-03 WILO GmbH Plastic housing with metal suds
DE102008044498A1 (en) * 2008-09-03 2010-03-04 Lutz Pumpen Gmbh Container pump for emptying e.g. intermediate bulk container, that transports fluids to lorry filling station area, has return valve arranged in pipe connection and controlling return of medium from pipe against medium conveying direction

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5466995A (en) * 1993-09-29 1995-11-14 Taco, Inc. Zoning circulator controller
US5480289A (en) * 1994-09-13 1996-01-02 Lee; Albert Connector and mounting arrangement for a windshield washer pump

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8628933U1 (en) * 1986-10-30 1987-01-15 Meibes, Helmut
DE3833580A1 (en) * 1988-10-03 1990-04-05 Vdo Schindling Connection piece for a pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5466995A (en) * 1993-09-29 1995-11-14 Taco, Inc. Zoning circulator controller
US5480289A (en) * 1994-09-13 1996-01-02 Lee; Albert Connector and mounting arrangement for a windshield washer pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0979950A1 (en) * 1998-08-13 2000-02-16 WILO GmbH Centrifugal pump with check-valve
EP1079115A2 (en) * 1999-08-24 2001-02-28 WILO GmbH Pump casing made of plastic
EP1079115A3 (en) * 1999-08-24 2001-04-18 WILO GmbH Pump casing made of plastic
EP1193397A2 (en) * 2000-09-29 2002-04-03 WILO GmbH Plastic housing with metal suds
EP1193397A3 (en) * 2000-09-29 2002-09-04 WILO GmbH Plastic housing with metal suds
DE102008044498A1 (en) * 2008-09-03 2010-03-04 Lutz Pumpen Gmbh Container pump for emptying e.g. intermediate bulk container, that transports fluids to lorry filling station area, has return valve arranged in pipe connection and controlling return of medium from pipe against medium conveying direction
DE102008044498B4 (en) * 2008-09-03 2012-07-26 Lutz Pumpen Gmbh submersible pump

Also Published As

Publication number Publication date
DE19752762A1 (en) 1999-06-02

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