EP0464355B1 - Double pompe centrifuge - Google Patents

Double pompe centrifuge Download PDF

Info

Publication number
EP0464355B1
EP0464355B1 EP91108395A EP91108395A EP0464355B1 EP 0464355 B1 EP0464355 B1 EP 0464355B1 EP 91108395 A EP91108395 A EP 91108395A EP 91108395 A EP91108395 A EP 91108395A EP 0464355 B1 EP0464355 B1 EP 0464355B1
Authority
EP
European Patent Office
Prior art keywords
insert
side wall
centrifugal pump
flat side
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91108395A
Other languages
German (de)
English (en)
Other versions
EP0464355A2 (fr
EP0464355A3 (en
Inventor
Günter Strelow
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 AT91108395T priority Critical patent/ATE98000T1/de
Publication of EP0464355A2 publication Critical patent/EP0464355A2/fr
Publication of EP0464355A3 publication Critical patent/EP0464355A3/de
Application granted granted Critical
Publication of EP0464355B1 publication Critical patent/EP0464355B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • 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
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps
    • F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0072—Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/912—Interchangeable parts to vary pumping capacity or size of pump

Definitions

  • the invention relates to a double centrifugal pump with two pump impellers mounted in a housing and two parallel electric motors arranged next to one another, the pump housing having a flat side wall in which the inlet and outlet lie, and the pump housing with this flat side wall on a second device, in particular a consumer device is fixed, and an insert releasably lies in the pump housing, which insert can be inserted through a large opening in the flat side wall and forms inlet and outlet as well as inner connecting channels.
  • Double pumps are known which are used for parallel operation, series operation, separate operation, with the possibility of the rotation of the conveying direction and also with a switchover function. For each of these applications, it is necessary to provide an independent construction.
  • German Offenlegungsschrift 3624917 to insert an insert in a centrifugal pump into the pump housing, which forms the inlet and outlet, as well as the spirally widening outlet channel.
  • the object of the invention is to provide a double centrifugal pump which can be used for the various valve applications in a simple construction and small construction by making minor changes while maintaining the pump housing.
  • shut-off device in particular an envelope flap or a check valve, is arranged in use.
  • the insert forms a spirally widening outlet channel for each impeller.
  • the insert should also form at least part of the flat side wall. It is particularly advantageous that the insert forms the connection surfaces for the inlet and outlet.
  • the insert is particularly inexpensive to manufacture if it is made of plastic. It is of the greatest advantage if the opening in the flat side wall is circular for use and merges into a cylindrical interior of the pump housing.
  • the double pump has two canned pumps and can be used as a hot water pump, especially in heating systems.
  • the pump 1 has a pump housing 2, in particular made of plastic or metal, in which two impellers are arranged axially parallel and in which a tubular inlet is formed axially. Around each of the impellers there is a spiral outlet duct.
  • the housing 2 is in the form of a circular disk, the height H of the cylindrical outer wall being substantially less than the diameter D of the circular flat, flat pump side wall. 6.
  • the openings 4, 7 and 8 are located in the plane of the side wall 6.
  • two canned electric motors 9 are attached coaxially to the impellers.
  • the pump housing 2 has an inner insert 3, which closely surrounds the impellers and forms the spirally widening outlet channels around the impellers, and an outer housing 11 surrounding the insert 3, which is fastened to the electric motors 9 and carries seals 13, which in the Level of the side wall 6 lie.
  • the insert 3 thus forms, together with the edge of the housing, the flat interface to the consumption or connection devices. It is particularly advantageous that the opening 5 in the flat side wall 6 for the insert 3 is circular and merges into a cylindrical interior 2a of the pump housing.
  • the outer housing 11 which acts as a pressure vessel, forms flanges 12 parallel to the side wall 6, which have bores 14 in order to be able to accommodate screws. With these screws, not shown, the outer housing 11 and thus the entire pump can be attached to consumption devices. Impellers 3 and inserts 3 of different powers and designs can be inserted into this outer housing 11.
  • the impellers be replaced by differently shaped impellers, but also the spiral channels surrounding the impellers and the inlet can be adapted to the respective impellers and the desired power as well as to the respective speed range be.
  • the inlet and outlet openings 4, 7, 8 located in the insert 3 can be adapted to the conditions of the consumption or connection devices in terms of their spacing from one another and also in their arrangement in the flat side wall 6. It is sufficient to change insert 3. to meet the requirements.
  • the channels can be shaped differently in the insert 3, and can also be arranged. Envelope flaps or check valves must be attached (stored) that correspond to the respective application.
  • the inner insert 3 can be made smaller than shown in the figures. It may be sufficient if it only forms the inlet opening 7 and the diffuser for the impeller.
  • the insert 3 can also consist of several parts. It is particularly easy to manufacture if it is made of plastic. In particular, this makes it possible and economically justifiable to include differently shaped inserts in the pump, so that the user can change the pump function or performance before installation.

Landscapes

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

Claims (6)

  1. Double pompe centrifuge avec deux rotors de pompe montés dans un carter (2) et deux moteurs électriques disposés côte-à-côte en parallèle, le carter (2, 11) de la pompe présentant une paroi latérale plane (6) dans laquelle se trouvent une entrée et une sortie (4, 7, 8), le carter (2, 11) de la pompe étant fixé par cette paroi latérale plane (6) à un second dispositif, en particulier un dispositif consommateur, et un plateau (3) étant logé de manière amovible dans le carter (2, 11) de la pompe, qui peut être enfoncé à travers une grande ouverture (5) de la paroi latérale plane (6) et forme l'entrée et la sortie (4, 7, 8) ainsi que des canaux de liaison internes,
    caractérisée en ce qu'un ou plusieurs organes d'arrêt (4), en particulier des clapets de rabattement ou des soupapes antiretour, sont disposes dans le plateau (3).
  2. Double pompe centrifuge selon la revendication 1,
    caractérisée en ce que le plateau (3) forme pour chaque rotor respectivement un canal de sortie s'élargissant en forme de spirale.
  3. Double pompe centrifuge selon la revendication 1 ou 2,
    caractérisée en ce que le plateau (3) forme au moins une partie de la paroi latérale plane (6).
  4. Double pompe centrifuge selon l'une des revendications précédentes,
    caractérisée en ce que le plateau (3) forme les surfaces de raccordement pour l'entrée et la sortie (4, 7, 8).
  5. Double pompe centrifuge selon l'une des revendications précédentes,
    caractérisée en ce que le plateau (3) est constitué de matière synthétique.
  6. Double pompe centrifuge selon l'une des revendications précédentes,
    caractérisée en ce que l'ouverture (5) dans la paroi latérale plane (6) est circulaire pour le plateau (3) et se convertit en un volume interne cylindrique (2a) pour le carter de la pompe.
EP91108395A 1990-07-06 1991-05-24 Double pompe centrifuge Expired - Lifetime EP0464355B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91108395T ATE98000T1 (de) 1990-07-06 1991-05-24 Doppel-kreiselpumpe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4021410A DE4021410A1 (de) 1990-07-06 1990-07-06 Doppel-kreiselpumpe
DE4021410 1990-07-06

Publications (3)

Publication Number Publication Date
EP0464355A2 EP0464355A2 (fr) 1992-01-08
EP0464355A3 EP0464355A3 (en) 1992-02-26
EP0464355B1 true EP0464355B1 (fr) 1993-12-01

Family

ID=6409706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91108395A Expired - Lifetime EP0464355B1 (fr) 1990-07-06 1991-05-24 Double pompe centrifuge

Country Status (6)

Country Link
US (1) US5178520A (fr)
EP (1) EP0464355B1 (fr)
KR (1) KR970007394B1 (fr)
AT (1) ATE98000T1 (fr)
DE (2) DE4021410A1 (fr)
ES (1) ES2046823T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD834068S1 (en) 2017-01-27 2018-11-20 S.A. Armstrong Limited Control pump
US11732719B2 (en) 2017-01-27 2023-08-22 S.A. Armstrong Limited Dual body variable duty performance optimizing pump unit

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5474431A (en) * 1993-11-16 1995-12-12 Copeland Corporation Scroll machine having discharge port inserts
DE4403697A1 (de) * 1994-02-07 1995-08-10 Wilo Gmbh Doppelpumpe
DE19511027A1 (de) * 1995-03-28 1996-10-02 Wilo Gmbh Kreiselpumpe mit Entlüftung
DE19702477B4 (de) * 1997-01-24 2006-02-02 Wilo Ag Doppelpumpe
DE59910845D1 (de) * 1999-08-21 2004-11-18 Grundfos As Kreiselpumpengehäuse für eine an zwei Umwälzkreise anschliessbare Pumpe
US6543243B2 (en) 2001-06-21 2003-04-08 Visteon Global Technologies, Inc. Hybrid compressor
AU2003200332B2 (en) * 2002-02-08 2005-11-17 Sanden Corporation Hybrid compressor
RU2295063C1 (ru) * 2005-10-03 2007-03-10 Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт им. Г.В. Плеханова (технический университет)" Распределительное устройство нагнетательного пульпопровода
FR2893092B1 (fr) * 2005-11-08 2008-10-10 Koyo Hpi Soc Par Actions Simpl Groupe electro-pompe, du type comprenant au moins une pompe hydraulique, notamment a engrenage, entrainee en rotation par un dispositif moteur
US7507066B2 (en) * 2006-03-27 2009-03-24 Koenig Kevin J Pump header body and modular manifold
RU2379555C1 (ru) * 2008-06-27 2010-01-20 Открытое акционерное общество "Татнефть" им. В.Д. Шашина Система транспортирования продукции скважин нефтяного месторождения
RU2415306C1 (ru) * 2009-08-05 2011-03-27 Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" имени С.П. Королева" Блок центробежных вентиляторов
DE102011116957A1 (de) * 2011-10-26 2013-05-02 Vaillant Gmbh Multiple Koaxialpumpe
DE102012204212B4 (de) * 2012-03-16 2024-02-29 Mahle International Gmbh Pumpenmodul mit einem Gehäuse
US9115720B2 (en) 2012-05-04 2015-08-25 Ghsp, Inc. Dual pump and motor with control device
US9562534B2 (en) 2012-05-04 2017-02-07 Ghsp, Inc. In-line dual pump and motor with control device
USD729847S1 (en) * 2013-01-28 2015-05-19 Welco Co., Ltd. Liquid feeder for washing
US9752590B2 (en) * 2013-03-13 2017-09-05 Ghsp, Inc. Two pump design with coplanar interface surface
US9739284B2 (en) * 2013-11-19 2017-08-22 Charles Wayne Zimmerman Two piece impeller centrifugal pump
US10087927B2 (en) 2014-05-01 2018-10-02 Ghsp, Inc. Electric motor with flux collector
US11015585B2 (en) 2014-05-01 2021-05-25 Ghsp, Inc. Submersible pump assembly
US10711788B2 (en) 2015-12-17 2020-07-14 Wayne/Scott Fetzer Company Integrated sump pump controller with status notifications
USD893552S1 (en) 2017-06-21 2020-08-18 Wayne/Scott Fetzer Company Pump components
USD890211S1 (en) 2018-01-11 2020-07-14 Wayne/Scott Fetzer Company Pump components
DE102018220150A1 (de) * 2018-11-23 2020-05-28 Mahle International Gmbh Pumpenmodul für Kühlmittel
USD940205S1 (en) * 2019-11-06 2022-01-04 Leistritz Pumpen Gmbh Pump for liquids
RU196491U1 (ru) * 2019-12-18 2020-03-03 Сергей Викторович Яблочко Двухсекционный электронасосный агрегат

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US2810345A (en) * 1953-02-12 1957-10-22 Flygts Pumpar Ab Pump device
DE1715520U (de) * 1955-11-11 1956-01-19 Kloeckner Humboldt Deutz Ag Feuerloeschkreiselpumpe.
US3500755A (en) * 1968-05-17 1970-03-17 Crane Co Combined drag pump and electric motor
FR2186123A5 (fr) * 1972-05-26 1974-01-04 Materiel Telephonique
DE2235505B1 (de) * 1972-07-20 1973-12-20 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Doppelpumpenaggregat
CH557473A (de) * 1973-08-28 1974-12-31 Bieri Pumpenbau Ag Pumpenaggregat, insbesondere fuer zentralheizungsanlagen, mit zwei unabhaengig voneinander antreibbaren kreiselpumpen.
FR2408739A1 (fr) * 1977-11-10 1979-06-08 Materiel Telephonique Dispositif de pompage monobloc a fonctionnement ambivalent
DE2808741C2 (de) * 1978-03-01 1985-04-25 Loewe Pumpenfabrik GmbH, 2120 Lüneburg Stufengehäuse für mehrstufige Kreiselpumpen
US4178131A (en) * 1978-08-07 1979-12-11 Roy E. Roth Company Centrifugal impellers
DE3624917A1 (de) * 1985-09-21 1987-03-26 Oplaender Wilo Werk Gmbh Kreiselpumpe
US4738584A (en) * 1986-07-28 1988-04-19 Carl Price Multiple impeller pump
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD834068S1 (en) 2017-01-27 2018-11-20 S.A. Armstrong Limited Control pump
USD839313S1 (en) 2017-01-27 2019-01-29 S.A. Armstrong Limited Control pump
USD839314S1 (en) 2017-01-27 2019-01-29 S.A. Armstrong Limited Control pump
USD839922S1 (en) 2017-01-27 2019-02-05 S.A. Armstrong Limited Control pump
US11732719B2 (en) 2017-01-27 2023-08-22 S.A. Armstrong Limited Dual body variable duty performance optimizing pump unit
US11965512B2 (en) 2017-01-27 2024-04-23 S.A. Armstrong Limited Dual body variable duty performance optimizing pump unit
US12372091B2 (en) 2017-01-27 2025-07-29 S.A. Armstrong Limited Twin pump unit casing having motor mounted touchscreens

Also Published As

Publication number Publication date
EP0464355A2 (fr) 1992-01-08
DE59100652D1 (de) 1994-01-13
KR970007394B1 (ko) 1997-05-08
ATE98000T1 (de) 1993-12-15
KR920002938A (ko) 1992-02-28
ES2046823T3 (es) 1994-02-01
EP0464355A3 (en) 1992-02-26
US5178520A (en) 1993-01-12
DE4021410A1 (de) 1992-01-16

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