EP2072823A2 - Pompe centrifuge dotée d'une déaération - Google Patents

Pompe centrifuge dotée d'une déaération Download PDF

Info

Publication number
EP2072823A2
EP2072823A2 EP08021509A EP08021509A EP2072823A2 EP 2072823 A2 EP2072823 A2 EP 2072823A2 EP 08021509 A EP08021509 A EP 08021509A EP 08021509 A EP08021509 A EP 08021509A EP 2072823 A2 EP2072823 A2 EP 2072823A2
Authority
EP
European Patent Office
Prior art keywords
separation chamber
pump
chamber
pump according
liquid
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
EP08021509A
Other languages
German (de)
English (en)
Other versions
EP2072823B1 (fr
EP2072823A3 (fr
Inventor
Thomas Müller
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 EP2072823A2 publication Critical patent/EP2072823A2/fr
Publication of EP2072823A3 publication Critical patent/EP2072823A3/fr
Application granted granted Critical
Publication of EP2072823B1 publication Critical patent/EP2072823B1/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
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/001—Preventing vapour lock
    • F04D9/002—Preventing vapour lock by means in the very pump
    • F04D9/003—Preventing vapour lock by means in the very pump separating and removing the vapour

Definitions

  • the invention relates to a centrifugal pump with a through-flow of the liquid to be conveyed, arranged in the flow direction in front of the pump chamber separation chamber.
  • the object of the invention is to improve the separation chamber upstream of a centrifugal pump in such a way that with small external dimensions a high venting performance can be achieved.
  • a low volume of the separation chamber can be achieved with high venting performance, so that the overall external dimensions of the venting device and the pump are low.
  • a particularly early and safe separation of the gas bubbles from the liquid is achieved in that the upper vent of the separation chamber is surrounded by a tube which projects down into the separation chamber.
  • the pipe length can be 1 ⁇ 4 to 1 ⁇ 2 of the height of the separation chamber.
  • the separation chamber is connected to the pump chamber via a channel which branches off laterally from the separation chamber, in particular at the level of the tube, and opens at the suction opening of the pump impeller.
  • the liquid inlet of the separation chamber is arranged on its underside and stationary guide vanes in particular have a guide vane ring.
  • a particularly stable cyclone is produced in the separation chamber and, moreover, the outer dimensions are reduced since a lateral inflow is not required.
  • the inlet of the separation chamber is arranged on its underside and in this case forms the suction nozzle of the pump.
  • the upper vent opening of the separation chamber leads to a vent chamber arranged above the separation chamber, wherein an automatic venting takes place.
  • the upper venting chamber may have a float which can be dismantled upwards.
  • the housing of the degassing device in particular of the separation chamber, is integrally connected to the housing of the pump so that the pump and the venting device form a unit.
  • a centrifugal pump 1 which is used in particular for circulating the heating water in heating systems, has within a pump housing 2 a spiral space 3, in which a pump impeller 1a is mounted.
  • the pump impeller can be driven by an electric motor, not shown, which can be fastened with its motor housing to a connection surface 4 of the housing 2.
  • a coaxial to the pump impeller 5 opens at the suction port of the pump impeller 1 a, so that the pump 1 promotes from the channel 5 to the discharge nozzle 6, which is connected to the spiral space 3.
  • the discharge nozzle 6 is arranged on the upper side of the pump with a preferably vertical axis and has an external thread 7.
  • a ventilation device 8 is laterally formed with its housing 9, so that the two housings 2, 9 are in one piece.
  • the housing 9 forms a lower separation chamber 10, in which the incoming liquid in particular water forms a cyclone, so that the space 10 can also be called a "cyclone chamber”.
  • the separation chamber 10 has a lower liquid inlet 11, whose cross section is circular and corresponds to the cross section of the separation chamber 10. In this case, the inlet 11 goes down into the suction nozzle 12, which simultaneously forms the suction nozzle of the pump.
  • the opening 16 is surrounded by a central coaxial tube 17, which is open at the bottom and thus projects down into the space 10 to safely receive the accumulating in the middle of the cyclone gas bubbles and to lead upward into a vent chamber 18.
  • the length of the tube (17) is 1 ⁇ 4 to 1 ⁇ 2 height of the separation chamber, preferably at least the height of the inlet 20 of the channel 5.
  • a float 19 is mounted for automatic venting.
  • the parts 11 to 19 are arranged coaxially to each other.
  • the freed from the air bubbles liquid passes through an upper, arranged on the separation chamber 10 outlet opening 20 in a horizontal channel 5, which connects the separation chamber 10 with the spiral space 3, wherein the channel 5 opens at the suction opening of the pump impeller.
  • the axis of the pressure port 6 is arranged parallel to the axis of the suction nozzle 12 and the separation chamber 10, so that a simple attachment in pipes is made possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP08021509.8A 2007-12-18 2008-12-11 Pompe centrifuge dotée d'une déaération Active EP2072823B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710061558 DE102007061558A1 (de) 2007-12-18 2007-12-18 Kreiselpumpe mit Entlüftung

Publications (3)

Publication Number Publication Date
EP2072823A2 true EP2072823A2 (fr) 2009-06-24
EP2072823A3 EP2072823A3 (fr) 2014-06-25
EP2072823B1 EP2072823B1 (fr) 2018-08-08

Family

ID=40210450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08021509.8A Active EP2072823B1 (fr) 2007-12-18 2008-12-11 Pompe centrifuge dotée d'une déaération

Country Status (2)

Country Link
EP (1) EP2072823B1 (fr)
DE (1) DE102007061558A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016138599A1 (fr) * 2015-03-03 2016-09-09 Imi Hydronic Engineering Switzerland Ag Dispositif pour un dégazage d'un liquide
CN114893393A (zh) * 2022-04-21 2022-08-12 北京太阳宫燃气热电有限公司 一种燃气锅炉给水泵的排气装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3703434A1 (de) 1987-02-05 1988-08-18 Oplaender Wilo Werk Gmbh Kreiselpumpe mit entlueftung
EP0905380A2 (fr) 1997-09-30 1999-03-31 WILO GmbH Dispositif de purge d'air

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6404199A (fr) * 1964-04-17 1965-10-18
DE1653725A1 (de) * 1967-09-29 1972-01-13 Hanning Elektro Werke Umwaelzpumpe fuer Heizungsanlagen
ATE8522T1 (de) * 1979-09-13 1984-08-15 Vaillant Ges.M.B.H Pumpe mit entgaser.
SE420230C (sv) * 1980-10-20 1987-11-16 Sala International Ab Anordning for pumpning av skummande vetskor
DE8102304U1 (de) * 1981-01-30 1981-07-02 Grundfos A/S, 8850 Bjerringbro Pumpe mit typenschild
DE3109918C2 (de) * 1981-03-14 1989-03-16 Wilo-Werk Gmbh & Co Pumpen- Und Apparatebau, 4600 Dortmund Flüssigkeitspumpe mit Gasabscheidekammer
AT389236B (de) * 1987-11-03 1989-11-10 Trawoeger Werner Abscheider

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3703434A1 (de) 1987-02-05 1988-08-18 Oplaender Wilo Werk Gmbh Kreiselpumpe mit entlueftung
EP0905380A2 (fr) 1997-09-30 1999-03-31 WILO GmbH Dispositif de purge d'air

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016138599A1 (fr) * 2015-03-03 2016-09-09 Imi Hydronic Engineering Switzerland Ag Dispositif pour un dégazage d'un liquide
CN114893393A (zh) * 2022-04-21 2022-08-12 北京太阳宫燃气热电有限公司 一种燃气锅炉给水泵的排气装置
CN114893393B (zh) * 2022-04-21 2024-05-17 北京太阳宫燃气热电有限公司 一种燃气锅炉给水泵的排气装置

Also Published As

Publication number Publication date
EP2072823B1 (fr) 2018-08-08
DE102007061558A1 (de) 2009-06-25
EP2072823A3 (fr) 2014-06-25

Similar Documents

Publication Publication Date Title
WO2014187648A1 (fr) Ensemble pompe centrifuge auto-amorçante à plusieurs étages
EP2505842A1 (fr) Agrégat de pompe centrifuge à plusieurs étages
DE19822704B4 (de) Gasabscheidende Brauchwasser-Zirkulationspumpe
DE3033450C2 (de) Vorrichtung zur Abscheidung von Gas aus einer Flüssigkeit
EP3348804B1 (fr) Réservoir de lubrifiant pour un système hydraulique
DE212019000324U1 (de) Mikrobläschen-Erzeugungseinrichtung
EP0874201B1 (fr) Ensemble pour installation de chauffage compact
EP2429677B1 (fr) Filtre
EP2072823B1 (fr) Pompe centrifuge dotée d'une déaération
EP1873399B1 (fr) Dispositif de pompe centrifuge
DE102016225533B4 (de) Pumpenanordnung und Nuklearreaktor mit einer solchen Pumpenanordnung
DE3109918A1 (de) Fluessigkeitspumpe mit gasabscheidekammer
EP3643396B1 (fr) Dispositif de mélange de fluides fonctionnant en continu et respirant du fluide et son procédé de fonctionnement
EP1562001B1 (fr) Chauffage avec appareil de dégazage
DE102011117996B4 (de) Rotationspumpe mit Verstellkranz zur Höhenverstellung
CH620500A5 (fr)
EP2845635A1 (fr) Ventilateur
DE9208801U1 (de) Pumpenaggregat
DE202005020100U1 (de) Kreiselpumpe
EP2770215A1 (fr) Dispositif de pompage et diffuseur pour un dispositif de pompage
WO2003011774A1 (fr) Aerateur pour cours d'eau
EP3507503A1 (fr) Réservoir
WO2013087692A1 (fr) Unité de transport de carburant
EP3673178B1 (fr) Pompe axiale à tuyau
DE102006053479A1 (de) Motorkreiselpumpe

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: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F04D 9/00 20060101AFI20140516BHEP

17P Request for examination filed

Effective date: 20141016

RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AKX Designation fees paid

Designated state(s): DE FR GB IT

AXX Extension fees paid

Extension state: BA

Extension state: AL

Extension state: MK

Extension state: RS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20180321

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

Owner name: WILO SE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

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: DE

Ref legal event code: R096

Ref document number: 502008016242

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008016242

Country of ref document: DE

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

26N No opposition filed

Effective date: 20190509

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

Ref country code: IT

Payment date: 20211117

Year of fee payment: 14

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: GB

Payment date: 20231121

Year of fee payment: 16

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: 20221211

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

Ref country code: FR

Payment date: 20231122

Year of fee payment: 16

Ref country code: DE

Payment date: 20231121

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502008016242

Country of ref document: DE