EP2587067A2 - Pompe coaxiale multiple - Google Patents

Pompe coaxiale multiple Download PDF

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Publication number
EP2587067A2
EP2587067A2 EP12180724.2A EP12180724A EP2587067A2 EP 2587067 A2 EP2587067 A2 EP 2587067A2 EP 12180724 A EP12180724 A EP 12180724A EP 2587067 A2 EP2587067 A2 EP 2587067A2
Authority
EP
European Patent Office
Prior art keywords
pump
pipe
single pump
total
pressure pipe
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Withdrawn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
EP12180724.2A
Other languages
German (de)
English (en)
Other versions
EP2587067A3 (fr
Inventor
Claus-Heinrich Gößlinghoff
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.)
Vaillant GmbH
Original Assignee
Vaillant 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 Vaillant GmbH filed Critical Vaillant GmbH
Publication of EP2587067A2 publication Critical patent/EP2587067A2/fr
Publication of EP2587067A3 publication Critical patent/EP2587067A3/fr
Withdrawn legal-status Critical Current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
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more 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
    • 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

Definitions

  • the invention relates to a pump.
  • Pumps which can pump fluids with very small as well as very large flow rates or delivery heights, usually work with relatively poor efficiency. If several pumps are operated together, they require a large installation space.
  • DE 37 43 261 A1 discloses a pump with two individual pumps, in which the two individual pumps provide different pressures and flow rates due to design.
  • the aim of the invention is to provide a compact pump with a large, variable range of application with respect to the volume flow and the delivery height.
  • the pressure tube of a pump can be connected via a connecting channel with the suction tube of another pump.
  • the pump arrangement can be made particularly compact and cost-effective.
  • An advantageous structure may consist in that the individual pumps each have separate drive rotors, but these act on a common two-part stator. A space-saving design results when the drive shaft of a single pump runs within the drive shaft of another single pump.
  • the deflecting member (12, 13) may consist of at least one throttle flap which can easily move about an axis and sealingly closes on stops (24, 25).
  • a further pump for conveying a further medium can be arranged with a separate flow path on the housing. It is particularly advantageous if the further pump is driven via the same drive shaft as another single pump or via a separate drive shaft with motor, which runs within the drive shafts of the other pumps.
  • FIG. 1 shows a pump unit according to the invention with two individual pumps 1, 2 in a housing 5.
  • the individual pumps 1, 2 are centrifugal pumps; but it can also find other pump types use.
  • the first single pump 1 has a suction pipe 8 and a pressure pipe 10, between which a pump wheel 23, which is connected via a drive shaft 16 with a drive rotor 14, is located.
  • the second single pump 2 also has a suction pipe 9 and a pressure pipe 11, between which a pump impeller 22, which is connected via a drive shaft 17 with another drive rotor 15, is located.
  • the two drive rotors 14, 15 have the same stator 18.
  • the drive shaft 17 of the second single pump 2 extends within the drive shaft 16 of the first single pump 1.
  • the housing 5 has a housing inlet 6 with a Bactsaugrohr 3; this is connected to the suction pipes 8, 9 of the individual pumps 1, 2.
  • a deflecting member 12 in the form of a butterfly valve with 3 sealing stops 25.
  • the housing 5 further has a housing outlet 7 with a total pressure pipe 4; this is connected to the pressure pipes 10, 11 of the individual pumps 1, 2.
  • a deflecting member 13 in the form of a butterfly valve with 2 sealing stops 24.
  • a connecting channel 27 is arranged between the total intake manifold 3 and the total pressure pipe 4. At the ends of which are the two butterfly valves 12, 13th
  • FIG. 1 the pump unit is in parallel operation of the two individual pumps 1, 2.
  • the butterfly valve 12 is switched such that the total intake pipe 3 with the two suction pipes 8, 9 of the individual pumps 1, 2 is connected.
  • the connecting channel 27 is sealed by the butterfly valve 12 to the total intake manifold 3.
  • the shut-off valve 13 is connected such that the total pressure pipe 4 is connected to the two pressure pipes 10, 11 of the individual pumps 1, 2 and the connecting channel 27 is sealed to the total pressure pipe 4.
  • the flow thus passes from the total intake pipe 3 in parallel into both individual pumps 1, 2 and from there into the total pressure pipe 4 in parallel.
  • FIG. 2 shows the pump set in serial mode for high head.
  • the butterfly valve 12 is now switched so that the total intake pipe 3 is connected to the suction pipe 8 of the first single pump 1.
  • the connecting channel 27 is connected by the position of the butterfly valve 12 to the suction pipe 9 of the second single pump 2.
  • the butterfly valve 13 is switched such that the total pressure pipe 4 with the pressure pipe 11 1 of the second single pump 2 and the pressure pipe 10 of the first single pump 1 are connected to the connecting channel 27.
  • the flow passes from the total intake manifold 3 in series first in the first single pump 1 and from there via the connecting channel 27 and the second single pump 2 in the total pressure pipe. 4
  • FIG. 3 shows the pump unit in solo operation.
  • the butterfly valve 12 is as in serial operation in FIG. 2 connected such that the total intake pipe 3 with the suction pipe. 8 the first single pump 1 is connected.
  • the butterfly valve 13 however, as in parallel operation in FIG. 1 connected. The flow passes from the total intake 3 only in the first single pump 1 and from there into the total pressure pipe 4; the second single pump 2 is not flowed through. This operating mode is suitable for small volume flows and small delivery heights.
  • FIG. 4 shows a variant in which a third single pump 19 for conveying a further fluid flow to the housing 5 is arranged next to the second single pump 2.
  • the third single pump 9 has an impeller 26 between a suction pipe 20 and a pressure pipe 21.
  • the third single pump 19 is driven by its own drive shaft 29 and its own motor 28. As a result, a second fluid can be conveyed independently.
  • FIG. 5 shows a variant in which a third single pump 19 is arranged for conveying a further fluid flow to the housing 5 adjacent to the second single pump 2.
  • the third single pump 19 has an impeller 26 between a suction pipe 20 and a pressure pipe 21.
  • the two individual pumps 2, 19 are driven by the common drive shaft 17.
  • the invention is not limited to the two embodiments, but also includes other combinations of the described details, other pump types, other switching devices and other drive units.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP12180724.2A 2011-10-26 2012-08-16 Pompe coaxiale multiple Withdrawn EP2587067A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011116957A DE102011116957A1 (de) 2011-10-26 2011-10-26 Multiple Koaxialpumpe

Publications (2)

Publication Number Publication Date
EP2587067A2 true EP2587067A2 (fr) 2013-05-01
EP2587067A3 EP2587067A3 (fr) 2018-05-09

Family

ID=46967934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12180724.2A Withdrawn EP2587067A3 (fr) 2011-10-26 2012-08-16 Pompe coaxiale multiple

Country Status (2)

Country Link
EP (1) EP2587067A3 (fr)
DE (1) DE102011116957A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112128114A (zh) * 2020-10-02 2020-12-25 季忠炜 一种基于流径调节水量控制技术的节能水泵

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018220150A1 (de) * 2018-11-23 2020-05-28 Mahle International Gmbh Pumpenmodul für Kühlmittel
DE102019118946A1 (de) * 2019-07-12 2021-01-14 J. Schmalz Gmbh Unterdruckerzeugungsvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1808411A1 (de) 1968-11-12 1970-06-25 Oplaender Dipl Ing Jochen Pumpenaggregat aus zwei in einem Gehaeuse angeordneten Pumpen
DE3743261A1 (de) 1987-12-19 1989-06-29 Kloeckner Humboldt Deutz Ag Doppelpumpe fuer ein foerdermedium mit unterschiedlichen foerdermengen und foerderdruecken

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB132353A (fr) *
US1197755A (en) * 1912-02-24 1916-09-12 Gustav Moeller Apparatus for pumping liquids.
GB602408A (en) * 1945-10-15 1948-05-26 Waterous Co Multi-stage centrifugal pump
DE966857C (de) * 1952-08-21 1957-09-12 Philipp Hilge Fa Als Regelorgan verwendbare Drehschieber zum Parallel- oder Hintereinanderschalten zweier Stufen oder Stufengruppen einer Kreiselpumpe
DE1716186U (de) * 1952-11-28 1956-02-02 Seitz Werke Gmbh Kreiselpumpenaggregat.
CH395744A (de) * 1962-08-20 1965-07-15 Schneider Emil Mehrstufige Zentrifugalpumpe, deren Stufen sowohl hintereinander als auch nebeneinander geschaltet werden können
DE1453777A1 (de) * 1964-04-20 1969-05-08 Hilge Philipp Verfahren und Vorrichtung zum Betrieb von Kreiselpumpen
US3801224A (en) * 1971-12-09 1974-04-02 H Eberhardt Centrifugal pump assembly
DE2237108C2 (de) * 1972-07-28 1977-03-10 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Doppelpumpenaggregat
DE3900963A1 (de) * 1989-01-14 1990-08-02 Oplaender Wilo Werk Gmbh Pumpvorrichtung mit zwei foerderrichtungen
DE4021410A1 (de) * 1990-07-06 1992-01-16 Oplaender Wilo Werk Gmbh Doppel-kreiselpumpe
FR2805315B1 (fr) * 2000-02-22 2002-05-31 Pompes Salmson Sa Pompe a corps double a circulation
FR2891879B1 (fr) * 2005-10-11 2007-12-21 Renault Sas Pompe de circuit de refroidissement d'un moteur a combustion interne comprenant deux roues a aubes disposees en serie et fonctionnant de maniere permanente

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1808411A1 (de) 1968-11-12 1970-06-25 Oplaender Dipl Ing Jochen Pumpenaggregat aus zwei in einem Gehaeuse angeordneten Pumpen
DE3743261A1 (de) 1987-12-19 1989-06-29 Kloeckner Humboldt Deutz Ag Doppelpumpe fuer ein foerdermedium mit unterschiedlichen foerdermengen und foerderdruecken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112128114A (zh) * 2020-10-02 2020-12-25 季忠炜 一种基于流径调节水量控制技术的节能水泵

Also Published As

Publication number Publication date
EP2587067A3 (fr) 2018-05-09
DE102011116957A1 (de) 2013-05-02

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