EP1378667A3 - Pumping system - Google Patents

Pumping system Download PDF

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Publication number
EP1378667A3
EP1378667A3 EP03010971A EP03010971A EP1378667A3 EP 1378667 A3 EP1378667 A3 EP 1378667A3 EP 03010971 A EP03010971 A EP 03010971A EP 03010971 A EP03010971 A EP 03010971A EP 1378667 A3 EP1378667 A3 EP 1378667A3
Authority
EP
European Patent Office
Prior art keywords
pump
drive
pumping station
drive shaft
compensating device
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Withdrawn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
EP03010971A
Other languages
German (de)
French (fr)
Other versions
EP1378667A2 (en
Inventor
Jochen Zeyher
Thomas Schönstein
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.)
HERMETIC-PUMPEN GmbH
Original Assignee
HERMETIC-PUMPEN 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 HERMETIC-PUMPEN GmbH filed Critical HERMETIC-PUMPEN GmbH
Publication of EP1378667A2 publication Critical patent/EP1378667A2/en
Publication of EP1378667A3 publication Critical patent/EP1378667A3/en
Withdrawn legal-status Critical Current

Links

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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0416—Axial thrust balancing balancing pistons

Landscapes

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

Abstract

Die Erfindung betrifft einen Pumpstand (1) mit einer ein- oder mehrstufigen Kreiselpumpe (2), deren zumindest eines Pumpenlaufrad (4, 5, 6) auf einer Antriebswelle (7) eines Pumpenantriebs (3) fliegend gelagert ist, wobei zum Axialschubausgleich an der Antriebswelle (7) eine Ausgleichsvorrichtung (11) vorgesehen ist. Für den erfindungsgemäßen Pumpstand ist kennzeichnend, dass die Ausgleichsvorrichtung (11) zwischen dem zumindest einen Pumpenlaufrad (4, 5, 6) und dem Pumpenantrieb (3) angeordnet ist. Durch diese Anordnung der Ausgleichsvorrichtung (11) können lange und insbesondere externe Rückführungsleitungen für den Entlastungsstrom (E) vermieden werden und eine vom Motorkühlstrom (M) separate Führung des Entlastungsstroms (E) wird begünstigt (vgl. Fig. 1).

Figure 00000001
The invention relates to a pumping station (1) with a single- or multi-stage centrifugal pump (2) whose at least one pump impeller (4, 5, 6) on a drive shaft (7) of a pump drive (3) is cantilevered, wherein the axial thrust compensation at the Drive shaft (7) is provided a compensating device (11). It is characteristic of the pumping station according to the invention that the compensating device (11) is arranged between the at least one pump impeller (4, 5, 6) and the pump drive (3). By this arrangement of the compensation device (11) long and especially external return lines for the discharge flow (E) can be avoided and a separate from the engine cooling flow (M) leadership of the discharge current (E) is favored (see Fig. 1).
Figure 00000001
EP03010971A 2002-07-04 2003-05-16 Pumping system Withdrawn EP1378667A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10230025 2002-07-04
DE10230025A DE10230025A1 (en) 2002-07-04 2002-07-04 pumping

Publications (2)

Publication Number Publication Date
EP1378667A2 EP1378667A2 (en) 2004-01-07
EP1378667A3 true EP1378667A3 (en) 2005-01-12

Family

ID=29719456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03010971A Withdrawn EP1378667A3 (en) 2002-07-04 2003-05-16 Pumping system

Country Status (2)

Country Link
EP (1) EP1378667A3 (en)
DE (1) DE10230025A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102840142B (en) * 2012-09-26 2015-08-12 上海创科泵业制造有限公司 The multi-stage shield pump that a kind of motor is put
EP3936726A1 (en) * 2020-07-07 2022-01-12 Sulzer Management AG Adjusting discharge flow of a multistage pump by setting balance drum clearance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031973A (en) * 1959-11-30 1962-05-01 Kramer Herman Centrifugal pump with canned motor
US3220350A (en) * 1964-09-03 1965-11-30 Crane Co Motor driven pump
EP0078345A1 (en) * 1981-10-31 1983-05-11 Bran & Lübbe GmbH Centrifugal pump with axial thrust compensation driven by an air-gap sleeve motor
DE3232473A1 (en) * 1982-09-01 1984-03-01 Reinecker Heyko Dipl Ing Fh Centrifugal pump with split-cage magnetic clutch

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938641B1 (en) * 1970-08-06 1974-10-19
DE3520360C2 (en) * 1985-06-07 1994-03-31 Hermetic Pumpen Gmbh Pump unit with a multi-stage pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031973A (en) * 1959-11-30 1962-05-01 Kramer Herman Centrifugal pump with canned motor
US3220350A (en) * 1964-09-03 1965-11-30 Crane Co Motor driven pump
EP0078345A1 (en) * 1981-10-31 1983-05-11 Bran & Lübbe GmbH Centrifugal pump with axial thrust compensation driven by an air-gap sleeve motor
DE3232473A1 (en) * 1982-09-01 1984-03-01 Reinecker Heyko Dipl Ing Fh Centrifugal pump with split-cage magnetic clutch

Also Published As

Publication number Publication date
DE10230025A1 (en) 2004-02-12
EP1378667A2 (en) 2004-01-07

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