EP0715691B1 - Kreiselpumpe mit drehmomentkompensation - Google Patents

Kreiselpumpe mit drehmomentkompensation Download PDF

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Publication number
EP0715691B1
EP0715691B1 EP94925659A EP94925659A EP0715691B1 EP 0715691 B1 EP0715691 B1 EP 0715691B1 EP 94925659 A EP94925659 A EP 94925659A EP 94925659 A EP94925659 A EP 94925659A EP 0715691 B1 EP0715691 B1 EP 0715691B1
Authority
EP
European Patent Office
Prior art keywords
pump
impeller
hose
rigid element
secured
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
EP94925659A
Other languages
English (en)
French (fr)
Other versions
EP0715691A1 (de
Inventor
Bengt Olsson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0715691A1 publication Critical patent/EP0715691A1/de
Application granted granted Critical
Publication of EP0715691B1 publication Critical patent/EP0715691B1/de
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
    • 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
    • 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
    • F04D13/04—Units comprising pumps and their driving means the pump being fluid driven
    • 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

Definitions

  • the present invention relates to a pumping system including a submersible centrifugalpump in which the reaction moment of the pump impeller will be opposed in a manner advantageous to the practipal handling of the pumping system.
  • a hose connected directly to the pump, as discharge line, enabling the line to be rolled up, with the pump and motor still attached to the end, in order to transfer the complete assembly from one application site to another.
  • the main purpose of the present invention is to achive a pumping system including a submersible centrifugal pump with motor and impeller, where the reaction moment on the pump housing caursed by the impeller drive torque is opposed in a manner allowing the pump to be installed and to operate just through suspention from a hose without any other means or attachment.
  • the hose preferably serving also as flow discharge line from the pump.
  • the pump housing (2, Fig.3) may suitably be provided with an outgoing rigid fastend rigid element (7, Fig.3).
  • This element can be designed as an outlet section which is longer than that required to connect the hose (4) securely by means or a hose clip.
  • the outlet section may consist, for example, of a welded-on iron pipe, to which the hose (4) is connected essentially above the centre of the pump impeller.
  • the invention may, of course, be varied within the framework of the patent claims; for example, the arrangement described for large moment may also be obtained even in the case when the hose (4) is connected directly to the pump housing, by provideing the pump housing with some other rigidly protruding rigid element other than the outlet pipe (7), to which the hose is secured essentially above the centre of the pump impeller, for example clamped on the outside or the hose by means of an external hose clip.
  • Another possible alternative is to suspend the pump from one or both of the hoses through which the fluid for the hydraulic drive motor flows (6, Fig.4) and to secure that/them to the aforesaid rigid element some distance up.

Landscapes

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

Claims (3)

  1. Pumpensystem mit Kreiselpumpe, ausgestattet mit einem Laufrad (1), das beim Betrieb zusammen mit einem hydraulischen Antriebsmotor (5) in das Fördermedium eingetaucht ist, wobei Schläuche hinab zur Pumpe (4,6) für das Fördermedium und den hydraulischen Antriebsmotor führen, von denen mindestens einer an der Pumpe oder einem von der Pumpe starr wegragenden Starrelement befestigt ist, so daß er im wesentlichen zwischen seinem oberen Befestigungspunkt und der Pumpe oder dem Element geradegezogen wird, dadurch gekennzeichnet, daß das Pumpenlaufrad (1) im wesentlichen vertikal ausgerichtet läuft, d. h. mit horizontal in den Motor (5) eintretender Welle, und der vorgenannte gerade Schlauch an der Pumpe oder am Starrelement in einem bestimmten vertikalen Abstand (r) von der Mitte des Laufrads so befestigt ist, daß dem Reaktionsmoment der Pumpe aufgrund des Laufradbetriebs entgegengewirkt wird.
  2. Anordnung gemäß Patentanspruch 1, dadurch gekennzeichnet, daß das Starrelement aus einem Rohr besteht, das einen erweiterten Druckstutzen (7) bildet.
  3. Anordnung gemäß Patentanspruch 1, dadurch gekennzeichnet, daß das Starrelement aus einem anderen erweiterten Teil als einem Druckstutzen besteht, an dem die
    Außenseite des Schlauchs befestigt wird.
EP94925659A 1993-08-25 1994-08-16 Kreiselpumpe mit drehmomentkompensation Expired - Lifetime EP0715691B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9302739 1993-08-25
SE9302739A SE503575C2 (sv) 1993-08-25 1993-08-25 Vridmomentskompenserad centrifugalpump
PCT/SE1994/000744 WO1995006206A1 (en) 1993-08-25 1994-08-16 Torque-compensated centrifugal pump

Publications (2)

Publication Number Publication Date
EP0715691A1 EP0715691A1 (de) 1996-06-12
EP0715691B1 true EP0715691B1 (de) 1999-12-01

Family

ID=20390875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94925659A Expired - Lifetime EP0715691B1 (de) 1993-08-25 1994-08-16 Kreiselpumpe mit drehmomentkompensation

Country Status (5)

Country Link
EP (1) EP0715691B1 (de)
DE (1) DE69421931T2 (de)
DK (1) DK0715691T3 (de)
SE (1) SE503575C2 (de)
WO (1) WO1995006206A1 (de)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI54185C (fi) * 1976-05-04 1978-10-10 Sarlin Ab Oy E Fiskpump

Also Published As

Publication number Publication date
SE503575C2 (sv) 1996-07-08
DE69421931D1 (de) 2000-01-05
SE9302739D0 (sv) 1993-08-25
EP0715691A1 (de) 1996-06-12
DE69421931T2 (de) 2000-11-02
SE9302739L (sv) 1995-02-26
WO1995006206A1 (en) 1995-03-02
DK0715691T3 (da) 2000-05-08

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