EP1862674A1 - Pompe centrifuge - Google Patents

Pompe centrifuge Download PDF

Info

Publication number
EP1862674A1
EP1862674A1 EP07009745A EP07009745A EP1862674A1 EP 1862674 A1 EP1862674 A1 EP 1862674A1 EP 07009745 A EP07009745 A EP 07009745A EP 07009745 A EP07009745 A EP 07009745A EP 1862674 A1 EP1862674 A1 EP 1862674A1
Authority
EP
European Patent Office
Prior art keywords
suction
impeller
pump
suction ring
housing
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
EP07009745A
Other languages
German (de)
English (en)
Other versions
EP1862674B1 (fr
Inventor
Anthony Le Mée
Xavier Rousseau
Maurice Ciron
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.)
Wilo SE
Original Assignee
Wilo 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 Wilo AG filed Critical Wilo AG
Publication of EP1862674A1 publication Critical patent/EP1862674A1/fr
Application granted granted Critical
Publication of EP1862674B1 publication Critical patent/EP1862674B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel

Definitions

  • the invention relates to a centrifugal pump with a pump housing, in the pump chamber on a shaft, a pump impeller is mounted, which has a central suction opening with a protruding sleeve-shaped coaxial edge which sealingly rests in a suction ring which surrounds the arranged in the pump housing suction opening, from which Impeller sucks the liquid to be pumped.
  • the object of the invention is to improve a centrifugal pump of the type mentioned so that different impellers with different sized suction can be used with the same suction ring.
  • the inner radial width of the suction ring is at least a quarter, in particular one third of the inner diameter of the suction opening.
  • Such a suction ring has a relatively large inner radial width, so that different impellers with different sized suction can be used. Thus, it is no longer necessary for each impeller with respective Ansaugö réelle diameter to produce a respective associated housing with matching suction ring. Rather, impellers with different sized intake ports can be used in one and the same pump housing.
  • the solution according to the invention has the advantage that even after installation of the pump, an impeller with a larger or smaller suction can be installed without having to change the pump housing, so that when replacing the pump housing can remain installed in the line unchanged.
  • the suction ring of the pump housing according to the invention can thus accommodate different wheels, without having to remove the pump housing.
  • the suction ring has a U-shaped cross-section.
  • the outer leg of the U-shaped cross section may have a height which is less than half the height of the inner leg.
  • the suction opening of the housing is formed by the inner opening of the suction ring.
  • the centrifugal pump has a housing 1 with a pump chamber 2, in which an impeller 3 is mounted on a shaft 4.
  • the shaft 4 is driven by an electric motor, not shown.
  • the impeller 3 conveys with blades 5 via a helical pump chamber area in a discharge nozzle, not shown.
  • the impeller 3 sucks in this case via a central suction port 6, the liquid from a suction port 7, which is arranged in the wall of the housing 1, and receives its liquid via a channel 8 from an intake manifold, not shown.
  • the suction opening 7 is coaxially surrounded by a suction ring (hollow ring) 9, which has a U-shaped cross-section, wherein the gap 10 between the legs 11, 12 is opened to the impeller 3.
  • the suction opening 6 of the impeller 3 is formed by a sleeve-shaped coaxial edge 13, which protrudes sealingly in the intermediate space 10 of the suction ring 9.
  • the impeller 3 has a suction opening 6 with a comparatively small inside diameter I, so that the inside of the bush-shaped edge 13 rests against the inside of the inner leg 11 or at least is close.
  • an impeller 3 in the same housing 1, is mounted with a suction port 6 of larger diameter than in the first embodiment, so that the sleeve-shaped edge 13 is closer to the leg 12 of the suction ring 9.
  • the inner radial width B of Saugrings 9 at least a quarter, in particular at least one third of the inner diameter 1 of the suction port 7 of the housing 1, wherein the suction port 7 is formed by the inner opening of the suction ring 9.
  • the legs 11 and 12 of the suction ring 9 may have the same height. In the exemplary embodiment, however, the inner leg 11, which forms the suction opening 7, a greater height, in particular more than twice the height than the height H2 of the outer leg 12th

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP07009745.6A 2006-05-30 2007-05-16 Pompe centrifuge Active EP1862674B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610024997 DE102006024997A1 (de) 2006-05-30 2006-05-30 Kreiselpumpe

Publications (2)

Publication Number Publication Date
EP1862674A1 true EP1862674A1 (fr) 2007-12-05
EP1862674B1 EP1862674B1 (fr) 2017-02-08

Family

ID=38429955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07009745.6A Active EP1862674B1 (fr) 2006-05-30 2007-05-16 Pompe centrifuge

Country Status (2)

Country Link
EP (1) EP1862674B1 (fr)
DE (1) DE102006024997A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108757546A (zh) * 2018-05-02 2018-11-06 江苏大学 一种具有平板型导流叶片的离心泵径向密封环
CN108869384A (zh) * 2018-05-02 2018-11-23 江苏大学 一种具有圆柱型导流叶片的离心泵径向密封环
WO2022166205A1 (fr) * 2021-02-04 2022-08-11 浙江凯博瑞汽车零部件有限公司 Structure d'étanchéité pour pompe centrifuge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104024647B (zh) 2011-12-27 2016-08-24 格兰富控股联合股份公司 泵机组

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR972528A (fr) * 1948-05-05 1951-01-31 Cie Des Surchauffeurs Perfectionnements aux pompes centrifuges
US3893785A (en) 1972-09-05 1975-07-08 Saurer Ag Adolph Device for mixing and impelling of heat-exchange fluids
FR2697598A1 (fr) 1992-11-03 1994-05-06 Salmson Pompes Dispositif de protection contre l'entrée de particules et de polluants solides.
US5577886A (en) * 1995-02-15 1996-11-26 Itt Flygt Ab Sealing device for pump impeller
US5618168A (en) * 1995-06-29 1997-04-08 Daewoo Electronics Co., Ltd. Circulating pump
DE19613486A1 (de) * 1996-04-04 1997-10-09 Grundfos As Dichtungsausbildung für Kreiselpumpen zur Verminderung des Spaltverluststromes im Saugmundbereich des Pumpenlaufrades

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE502552C2 (sv) * 1994-03-16 1995-11-13 Flygt Ab Itt Tätningsanordning

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR972528A (fr) * 1948-05-05 1951-01-31 Cie Des Surchauffeurs Perfectionnements aux pompes centrifuges
US3893785A (en) 1972-09-05 1975-07-08 Saurer Ag Adolph Device for mixing and impelling of heat-exchange fluids
FR2697598A1 (fr) 1992-11-03 1994-05-06 Salmson Pompes Dispositif de protection contre l'entrée de particules et de polluants solides.
US5577886A (en) * 1995-02-15 1996-11-26 Itt Flygt Ab Sealing device for pump impeller
US5618168A (en) * 1995-06-29 1997-04-08 Daewoo Electronics Co., Ltd. Circulating pump
DE19613486A1 (de) * 1996-04-04 1997-10-09 Grundfos As Dichtungsausbildung für Kreiselpumpen zur Verminderung des Spaltverluststromes im Saugmundbereich des Pumpenlaufrades

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108757546A (zh) * 2018-05-02 2018-11-06 江苏大学 一种具有平板型导流叶片的离心泵径向密封环
CN108869384A (zh) * 2018-05-02 2018-11-23 江苏大学 一种具有圆柱型导流叶片的离心泵径向密封环
WO2022166205A1 (fr) * 2021-02-04 2022-08-11 浙江凯博瑞汽车零部件有限公司 Structure d'étanchéité pour pompe centrifuge

Also Published As

Publication number Publication date
EP1862674B1 (fr) 2017-02-08
DE102006024997A1 (de) 2007-12-06

Similar Documents

Publication Publication Date Title
EP2818721B1 (fr) Pompe centrifuge
WO2019002206A1 (fr) Pompe à broche hélicoïdale, groupe d'alimentation en carburant et unité d'alimentation en carburant
EP1862674B1 (fr) Pompe centrifuge
EP3224483A1 (fr) Pompe centrifuge à dispositif directeur
DE102005021597A1 (de) Kraftstoffpumpe
EP2818725B1 (fr) Pompe centrifuge avec roue à aubes déplaçable axialement et obturable
EP0664398B1 (fr) Pompe centrifuge avec clapet de non-retour
DE102005008887A1 (de) Einwellige Vakuum-Verdränderpumpe
DE2249510A1 (de) Fluessigkeitspumpenaggregat, insbesondere fuer den einsatz in geschirrspuelmaschinen
EP3009680B1 (fr) Pompe centrifuge à plusieurs étages
DE102013101164B4 (de) Schraubenspindelpumpe
DE102009013156A1 (de) Mehrstufige Kreiselpumpe
DE102011077777B3 (de) Tauchpumpe und Verfahren zum Zusammenbau einer Tauchpumpe
DE102005029967A1 (de) Pumpvorrichtung für ein Doppelkupplungsgetriebe eines Kraftfahrzeuges
EP3156663B1 (fr) Groupe pompe centrifuge
EP3296571B1 (fr) Pompe à vide
DE4208829C2 (de) Spaltrohrmotorpumpe
DE102013214926A1 (de) Flügelzellenpumpe
DE102005060895A1 (de) Kreiselpumpe zur Förderung heißer und/oder leicht ausgasender und/oder gasbeladener Medien
EP2818722B1 (fr) Pompe centrifuge
DE102011089083A1 (de) Kraftstoffpumpe
EP2990651A1 (fr) Boîtier de pompe
DE202007002321U1 (de) Unterwasser-Pumpenantrieb zum Fördern und/oder Pumpen von Flüssigkeiten, insbesondere von Wasser-, bzw. von Teich- und/oder Aquariumwasser
DE102004044068B4 (de) Vorrichtung zur Sauerstoffversorgung und Anodengasrezirkulation eines Brennstoffzellensystems
EP1087143A2 (fr) Pompe submersible

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20071101

17Q First examination report despatched

Effective date: 20080118

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160920

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: WILO SE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 867003

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007015428

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170208

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: 20170509

Ref country code: FI

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: 20170208

Ref country code: LT

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: 20170208

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

Ref country code: PT

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: 20170608

Ref country code: LV

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: 20170208

Ref country code: NL

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: 20170208

Ref country code: LU

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

Effective date: 20170531

Ref country code: SE

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: 20170208

Ref country code: ES

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: 20170208

Ref country code: BG

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: 20170508

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

Ref country code: CZ

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: 20170208

Ref country code: SK

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: 20170208

Ref country code: EE

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: 20170208

Ref country code: RO

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: 20170208

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007015428

Country of ref document: DE

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

Ref country code: PL

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: 20170208

Ref country code: DK

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: 20170208

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20171109

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

Ref country code: MC

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: 20170208

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: CH

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

Effective date: 20170531

Ref country code: LI

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

Effective date: 20170531

Ref country code: SI

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: 20170208

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

Ref country code: LU

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

Effective date: 20170516

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170531

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

Ref country code: IE

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

Effective date: 20170516

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 867003

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170516

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

Ref country code: BE

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

Effective date: 20170531

Ref country code: AT

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

Effective date: 20170516

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

Ref country code: MT

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: 20170208

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

Ref country code: HU

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

Effective date: 20070516

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

Ref country code: CY

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

Effective date: 20170208

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

Ref country code: TR

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: 20170208

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

Ref country code: IS

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: 20170608

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20220421

Year of fee payment: 16

Ref country code: GB

Payment date: 20220426

Year of fee payment: 16

Ref country code: FR

Payment date: 20220421

Year of fee payment: 16

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230615

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230419

Year of fee payment: 17

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230516

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502007015428

Country of ref document: DE

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

Effective date: 20230516

Ref country code: GB

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

Effective date: 20230516

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

Ref country code: FR

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

Effective date: 20230531