EP1612426A3 - Controlled, energy efficient multi stage centrifugal pump with high pressure stage - Google Patents

Controlled, energy efficient multi stage centrifugal pump with high pressure stage Download PDF

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Publication number
EP1612426A3
EP1612426A3 EP05011473A EP05011473A EP1612426A3 EP 1612426 A3 EP1612426 A3 EP 1612426A3 EP 05011473 A EP05011473 A EP 05011473A EP 05011473 A EP05011473 A EP 05011473A EP 1612426 A3 EP1612426 A3 EP 1612426A3
Authority
EP
European Patent Office
Prior art keywords
subset
centrifugal pump
pump
stage
pressure
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.)
Granted
Application number
EP05011473A
Other languages
German (de)
French (fr)
Other versions
EP1612426B1 (en
EP1612426A2 (en
Inventor
Thomas ELSÄSSER
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
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Filing date
Publication date
Application filed by KSB AG filed Critical KSB AG
Publication of EP1612426A2 publication Critical patent/EP1612426A2/en
Publication of EP1612426A3 publication Critical patent/EP1612426A3/en
Application granted granted Critical
Publication of EP1612426B1 publication Critical patent/EP1612426B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D1/06—Multi-stage pumps
    • F04D1/10—Multi-stage pumps with means for changing the flow-path through the stages, e.g. series-parallel, e.g. side loads
    • 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
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using 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
    • 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

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

Kreiselpumpe mehrstufiger Bauart, wobei für eine Entnahme einer Teilmenge von der gesamten Pumpen-Fördermenge im Pumpengehäuse (1) hinter der letzten Pumpenstufe (4) ein Strömungsführungskanal angeordnet ist, der einem zusätzlichen Laufrad die entnommene Teilmenge zuführt und das Laufrad auf die Teilmenge eine weitere Drucksteigerung ausübt. Ein an sich bekanntes, drucksteigerndes und innerhalb der Kreiselpumpe hinter deren letzten Pumpenstufe (4) angeordnetes Sonderlaufrad (5) erzeugt eine im Druck gesteigerte Teilmenge. Diese Teilmenge strömt einem mit einem Strömungsteiler (7) versehenen Leitungssystem (6) zu, wobei vom Strömungsteiler (7) mindestens zwei Zweigleitungen (8, 9) abzweigen und zumindest eine Zweigleitung (8) mit einem Absperrorgan (12) versehen ist. Damit erfolgt in einen laufenden Betrieb der Kreiselpumpe eine Rückführung der abgedrosselten Teilmenge des Sonderlaufrades zurück auf den Enddruck der Kreiselpumpe.

Figure imgaf001
Centrifugal pump multi-stage design, wherein for a removal of a subset of the total pump delivery in the pump housing (1) behind the last pump stage (4) a flow channel is arranged, which supplies an additional impeller the removed subset and the impeller to the subset of a further increase in pressure exercises. A per se known, pressure-increasing and within the centrifugal pump behind the last pump stage (4) arranged special impeller (5) generates a partial increase in pressure subset. This subset flows to a line system (6) provided with a flow divider (7), wherein at least two branch lines (8, 9) branch off from the flow divider (7) and at least one branch line (8) is provided with a shut-off element (12). This is done in a running operation of the centrifugal pump a return of throttled subset of Sonderlaufrades back to the final pressure of the centrifugal pump.
Figure imgaf001
EP05011473.5A 2004-06-30 2005-05-27 Controlled, energy efficient multi stage centrifugal pump with high pressure stage Active EP1612426B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004031469A DE102004031469A1 (en) 2004-06-30 2004-06-30 Controlled, energy-saving minimum quantity device of a multi-stage centrifugal pump with a very high pressure special stage

Publications (3)

Publication Number Publication Date
EP1612426A2 EP1612426A2 (en) 2006-01-04
EP1612426A3 true EP1612426A3 (en) 2009-06-24
EP1612426B1 EP1612426B1 (en) 2015-08-05

Family

ID=34936993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05011473.5A Active EP1612426B1 (en) 2004-06-30 2005-05-27 Controlled, energy efficient multi stage centrifugal pump with high pressure stage

Country Status (4)

Country Link
EP (1) EP1612426B1 (en)
CN (1) CN1715680B (en)
DE (1) DE102004031469A1 (en)
ES (1) ES2550242T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009031309A1 (en) * 2009-06-30 2011-01-05 Ksb Aktiengesellschaft Process for conveying fluids with centrifugal pumps

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB216893A (en) * 1923-06-01 1924-06-26 Sulzer Ag Improvements in or relating to apparatus for supplying water of different pressures on ships propelled by internal combustion engines
GB806219A (en) * 1955-10-29 1958-12-23 Oerlikon Maschf Multi-stage radial flow compressor and method of operating same
FR1201234A (en) * 1957-08-10 1959-12-29 Babcock & Wilcox France Method for starting a forced circulation boiler
US3118386A (en) * 1964-01-21 Multi-stage centrifugal pump
EP0604390A2 (en) * 1992-12-24 1994-06-29 AUSTRIAN ENERGY & ENVIRONMENT SGP/WAAGNER-BIRO GmbH Method for feeding a multiple pressure steam generator and feed pump

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE680838C (en) * 1937-07-15 1939-09-09 Aeg Boiler feed system with a multi-stage centrifugal pump with intermediate extraction
CH562405A5 (en) * 1973-02-14 1975-05-30 Sulzer Ag Multi-or- single-stage centrifugal pump - has device driven by pump shaft for additional pressure intensification of part flow
DE8708334U1 (en) * 1987-06-12 1987-07-30 Dickow-Pumpen KG, 8264 Waldkraiburg Centrifugal pump
DE4014720A1 (en) * 1989-05-12 1990-11-15 Ruhrkohle Ag Centrifugal pump with outlet on final stage - has additional outlet on intermediate stage, that allows alternative pumping conditions
WO1998034030A1 (en) * 1997-02-04 1998-08-06 Murray William E Centrifugal process pump with auxiliary impeller
CN2551784Y (en) * 2002-06-11 2003-05-21 赵其林 Multistage serial integrated water pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3118386A (en) * 1964-01-21 Multi-stage centrifugal pump
GB216893A (en) * 1923-06-01 1924-06-26 Sulzer Ag Improvements in or relating to apparatus for supplying water of different pressures on ships propelled by internal combustion engines
GB806219A (en) * 1955-10-29 1958-12-23 Oerlikon Maschf Multi-stage radial flow compressor and method of operating same
FR1201234A (en) * 1957-08-10 1959-12-29 Babcock & Wilcox France Method for starting a forced circulation boiler
EP0604390A2 (en) * 1992-12-24 1994-06-29 AUSTRIAN ENERGY & ENVIRONMENT SGP/WAAGNER-BIRO GmbH Method for feeding a multiple pressure steam generator and feed pump

Also Published As

Publication number Publication date
DE102004031469A1 (en) 2006-01-26
CN1715680B (en) 2011-03-30
CN1715680A (en) 2006-01-04
ES2550242T3 (en) 2015-11-05
EP1612426B1 (en) 2015-08-05
EP1612426A2 (en) 2006-01-04

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