EP0704627B1 - Pompe submersible pour liquids souillés par de grosses impuretées - Google Patents

Pompe submersible pour liquids souillés par de grosses impuretées Download PDF

Info

Publication number
EP0704627B1
EP0704627B1 EP95113954A EP95113954A EP0704627B1 EP 0704627 B1 EP0704627 B1 EP 0704627B1 EP 95113954 A EP95113954 A EP 95113954A EP 95113954 A EP95113954 A EP 95113954A EP 0704627 B1 EP0704627 B1 EP 0704627B1
Authority
EP
European Patent Office
Prior art keywords
pump
space
jacket
rinsing
submersible
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
EP95113954A
Other languages
German (de)
English (en)
Other versions
EP0704627A1 (fr
Inventor
Klaus Dr. Wagner
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.)
KSB AG
Original Assignee
KSB AG
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 KSB AG filed Critical KSB AG
Publication of EP0704627A1 publication Critical patent/EP0704627A1/fr
Application granted granted Critical
Publication of EP0704627B1 publication Critical patent/EP0704627B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially 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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially 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
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/004—Priming of not self-priming pumps
    • F04D9/006—Priming of not self-priming pumps by venting gas or using gas valves
    • 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
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/604—Vortex non-clogging type pumps

Definitions

  • the invention relates to a submersible pump for conveying fluids, which are interspersed with deposits, with a tangential pressure port emanating from a pump chamber and a jacket space surrounding the motor of the submersible pump, through which the conveying liquid flows and which serves to cool the motor and which is connected to the pump chamber and which has a flushing connection which is arranged at the end of the jacket space facing away from the pump and is to be connected to an external liquid source.
  • Such a pump is known from DE-A-15 28 862.
  • a wastewater pump is described, from the pump chamber of which conveying liquid reaches the jacket space surrounding the electric motor.
  • a cooling circuit in the jacket space is maintained by back vanes on the pump impeller.
  • a common flushing of the jacket and pump space is not possible due to the sealing gap.
  • the jacket space In order to enable the jacket space to be flushed, the jacket space must be equipped with a further connection which serves to discharge the flushing liquid.
  • pumps for heavily contaminated liquids are usually equipped with free-flow impellers and tangential pressure ports.
  • cleaning flushing of such pumps has only been possible when removed.
  • the higher seated motor or its cooling jacket is only reached indirectly by a flushing flow introduced into the pump chamber.
  • Deposits in this area which is important for cooling, are therefore often only incompletely removed by rinsing.
  • Pump housing with vertical discharge nozzle which is the preference of the better Having the rinsing area flushable, are not used due to the risk of clogging with coarsely contaminated liquids
  • the object of the invention is to provide a submersible pump which, with a low risk of blockage, offers the possibility of simultaneous intensive rinsing of the pump and the jacket space without requiring the submersible pump to be removed.
  • this object is achieved according to the invention in that the jacket space is connected to the pump space in such a way that a flushing flow introduced via the flushing connection is discharged via the pump space.
  • the invention combines, as it were, two different types of submersible pumps, those with tangential and those with vertical pressure ports, to form a new, third type. This even gives the possibility of a standardized housing for both types, e.g. for waste water and wastewater pumps.
  • a closure cap provided on the flushing connection with a ventilation system. This can be easily cleaned in the event of any clogging after unscrewing the cap.
  • the invention is explained in more detail using an exemplary embodiment.
  • the drawing shows a sectional view of a vertically arranged submersible pump according to the invention.
  • the submersible pump equipped with a free-flow impeller 1 is driven by an electric motor 2.
  • the submersible motor pump has an inlet 3, a pump chamber 4 and a pressure port 5.
  • the electric motor 2 is surrounded by a jacket chamber 6, which is connected to the pump chamber 4 via a plurality of large-area openings (not shown here).
  • the jacket space 6 is filled with liquid that is used to continuously dissipate heat generated in the electric motor 2
  • a flushing connection 7 is arranged, which is closed by a screwed-on closure cap 8.
  • the Cap 8 is provided with an opening 9 serving to vent the interior of the submersible pump.
  • the free-flow impeller 1 draws delivery liquid through the inlet 3 into the pump chamber 4 and delivers it via the pressure nozzle 5 into an area not shown here.
  • the pressure exerted on the pumped liquid via the free-flow impeller 1 also leads to the jacket space 6 being filled with pumped liquid.
  • the air present in the jacket space 6 is discharged through the opening 9 in the closure cap 8.
  • Part of the heat generated by the electric motor 2 is given off through the wall of the pump to the surrounding liquid. This conveying liquid is in constant motion due to an internal flow, so that the heat absorbed by it is released to the outside via the wall of the submersible pump housing and into the pump chamber 4 via an exchange flow.
  • the conveying liquid contains impurities, deposits form over time on the walls delimiting the jacket space 6, that is, also on the wall of the electric motor 2, which is important for cooling connected or plugged in, via which pressurized water free of impurities is introduced into the jacket space 6.
  • the rinsing flow conducted through the jacket space 6 releases existing deposits and removes them via the pump space 4 and the inlet 3.
  • the connection of the pressure port 5 with a pressure line - not shown here - does not have to be released for this flushing process; the pump can remain in its installation position.

Landscapes

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

Claims (2)

  1. Pompe à moteur submersible pour liquides de transport, qui sont chargés d'éléments se déposant, ayant une tuyère de refoulement tangentielle (5) sortant d'une chambre de la pompe (4), et un espace d'enveloppe (6) entourant le moteur (2) de la pompe à moteur submersible, traversé par le liquide de transport, servant au refroidissement du moteur (2), qui est raccordé à la chambre de la pompe (4) et qui possède un raccord de rinçage disposé à une extrémité de l'espace d'enveloppe (6) opposée à la pompe, et devant être raccordé à une source de liquide externe, caractérisée en ce que l'espace d'enveloppe (6) est raccordé à la chambre de la pompe (4) de telle sorte qu'un courant de rinçage introduit par le raccord de rinçage (7) soit déchargé par la chambre de la pompe (4).
  2. Pompe à moteur submersible selon la revendication 1, caractérisé en ce que le raccord de rinçage (7) est pourvu d'un capuchon de fermeture (8) fixé de manière desserrable, lequel est équipé d'un système d'élimination de l'air (9).
EP95113954A 1994-09-27 1995-09-06 Pompe submersible pour liquids souillés par de grosses impuretées Expired - Lifetime EP0704627B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4434461A DE4434461A1 (de) 1994-09-27 1994-09-27 Tauchmotorpumpe für grob verunreinigte Flüssigkeiten
DE4434461 1994-09-27

Publications (2)

Publication Number Publication Date
EP0704627A1 EP0704627A1 (fr) 1996-04-03
EP0704627B1 true EP0704627B1 (fr) 1997-11-26

Family

ID=6529290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95113954A Expired - Lifetime EP0704627B1 (fr) 1994-09-27 1995-09-06 Pompe submersible pour liquids souillés par de grosses impuretées

Country Status (2)

Country Link
EP (1) EP0704627B1 (fr)
DE (2) DE4434461A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11808268B2 (en) 2020-10-19 2023-11-07 Milwaukee Electric Tool Corporation Stick pump assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL208405B1 (pl) 2002-05-07 2011-04-29 Emu Unterwasserpumpen Gmbh Silnik napędowy, zwłaszcza dla pompy
DE10233281A1 (de) * 2002-07-23 2004-02-05 Ksb Aktiengesellschaft Einrichtung zur Erhaltung der Saugfähigkeit einer Tauchmotorpumpe
RU2472037C1 (ru) * 2011-09-26 2013-01-10 Закрытое Акционерное Общество Научно-Производственное Объединение "Тэн" Пульповый погружной насос (варианты)
RU2472036C1 (ru) * 2011-09-26 2013-01-10 Закрытое Акционерное Общество Научно-Производственное Объединение "Тэн" Пульповый погружной насос

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1259710A (fr) * 1960-06-09 1961-04-28 Scandinavian Agencies Corp Ltd Pompe centrifuge entraînée par moteur électrique
SE367465B (fr) * 1965-04-30 1974-05-27 Stenberg Flygt Ab
US4134711A (en) * 1976-11-26 1979-01-16 Engineers Sales-Service Co., Inc. Submersible pump apparatus
JPH04347389A (ja) * 1991-05-24 1992-12-02 Ishigaki Mech Ind Co 立軸ポンプにおける夾雑物の絡み除去装置
IT1257704B (it) * 1991-12-05 1996-02-01 Nocchi Pompe Spa Pompa per acqua plurifunzionale: centrifuga, per aspirazione profonda,autoadescante, centrifuga con regolazione di pressione, autoadescante con regolazione di pressione, con dispositivo di avviamento e/0 arresto automatico

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11808268B2 (en) 2020-10-19 2023-11-07 Milwaukee Electric Tool Corporation Stick pump assembly

Also Published As

Publication number Publication date
DE4434461A1 (de) 1996-03-28
EP0704627A1 (fr) 1996-04-03
DE59501033D1 (de) 1998-01-08

Similar Documents

Publication Publication Date Title
DE69521681T2 (de) Integrierte Vorrichtung zur Umwälzung von Wasser mit zwei unabhängigen Pumpen und einem gemeinsamen Filter für Waschmaschinen oder dergleichen
DE3015211C2 (de) Schutzeinrichtung für Unterwassermotoren
DE202014004864U1 (de) Eine Luft-Flüssigkeit-Abscheideeinrichtung und ein Reiniger mit der Luft-Flüssigkeit-Abscheideeinrichtung für harte Oberflächen
DE2758038B2 (de) Absaugvorrichtung
DE4304149C1 (de) Selbstansaugendes Motorpumpenaggregat
EP0704627B1 (fr) Pompe submersible pour liquids souillés par de grosses impuretées
EP0399309A2 (fr) Elément filtrant tubulaire
DE2803224C2 (de) Selbstreinigende Filtervorrichtung
DE3110735A1 (de) Trockenlaufschutzvorrichtung fuer abwasserpumpen, insbesondere fuer hebeanlagen
DE4438626A1 (de) Desinfektionsvorrichtung für eine Toilette
DE10341998A1 (de) Vorrichtung und Verfahren zur Oberflächenbehandlung von Werkstücken in einem Kreislaufsystem
DE29514402U1 (de) Vorrichtung zum Verbessern des Ansaugverhaltens von Strömungsförderpumpen
DE9010254U1 (de) Geschirrspülmaschine mit einer Motorpumpe
DE69402476T2 (de) Einrichtung zum pumpen von flüssigkeiten
DE490265C (de) Einrichtung an Kreisel- und Kolbenpumpen zur Foerderung grob verunreinigter Fluessigkeiten
DE3316868A1 (de) Kuehlwasserabsaugvorrichtung fuer widerstandsschweissanlagen
EP0567838B1 (fr) Dispositif de neutralisation
DE3339948C2 (de) Umwälzpumpe für Wasserstrahler an Badewannen
WO2007036277A1 (fr) Dispositif de pompage dote d'une garniture d'etancheite a anneau glissant avec obturateur fluidique et application pour pomper des solutions de cellulose dans l'industrie papetiere
DE69612620T2 (de) Vorrichtung zum rücksaugen von wasser aus einem auslassrohr in verbindung mit einem wasserreiniger
EP0089025A1 (fr) Appareil pour traiter thermiquement des aliments au moyen d'un mélange air-vapeur
WO2004094034A1 (fr) Dispositif filtrant et procede pour le nettoyage periodique d'un filtre
DE4140731C2 (de) Waschanlage, insbesondere für Scheiben eines Kraftfahrzeugs
EP0826638B1 (fr) Dispositif d'épuration d'eau usée
DE69210389T2 (de) Pumpenanordnung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB GR IT

17P Request for examination filed

Effective date: 19960430

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19970411

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB GR IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19971126

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19971126

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19971126

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971126

REF Corresponds to:

Ref document number: 59501033

Country of ref document: DE

Date of ref document: 19980108

ITF It: translation for a ep patent filed
EN Fr: translation not filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19971126

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20000927

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050906