EP0075100B2 - Mehrstufige Kreiselpumpe - Google Patents

Mehrstufige Kreiselpumpe Download PDF

Info

Publication number
EP0075100B2
EP0075100B2 EP82107260A EP82107260A EP0075100B2 EP 0075100 B2 EP0075100 B2 EP 0075100B2 EP 82107260 A EP82107260 A EP 82107260A EP 82107260 A EP82107260 A EP 82107260A EP 0075100 B2 EP0075100 B2 EP 0075100B2
Authority
EP
European Patent Office
Prior art keywords
container
pump
centrifugal pump
housing
inlet
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.)
Expired
Application number
EP82107260A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0075100A1 (de
EP0075100B1 (de
Inventor
Wilfried Dr.Ing. Lehmann
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.)
Sihi GmbH and Co KG
Original Assignee
Sihi GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6141422&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0075100(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sihi GmbH and Co KG filed Critical Sihi GmbH and Co KG
Priority to AT82107260T priority Critical patent/ATE12814T1/de
Publication of EP0075100A1 publication Critical patent/EP0075100A1/de
Application granted granted Critical
Publication of EP0075100B1 publication Critical patent/EP0075100B1/de
Publication of EP0075100B2 publication Critical patent/EP0075100B2/de
Expired legal-status Critical Current

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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F04D1/063—Multi-stage pumps of the vertically split casing type
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid 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
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/02—Self-priming pumps

Definitions

  • the invention relates to a multi-stage centrifugal pump with a vertical shaft and a multi-member link housing for conveying liquids near their boiling point, which dips with its lower, suction-side end into a pot for the supply of liquid, above which the pump drive and the pressure line connection accessible (DE-A-1 703 529).
  • a pump for the circulation of a medium under high pressure, which encompasses all pump stages within a pressure-resistant housing, which consists of a pot-like lower part receiving the pump and an upper part receiving the drive Has pump housing which is connected to the pressure-resistant housing by means of an annular flange arranged thereon.
  • the invention has for its object to provide a centrifugal pump that allows the improvement of the inlet conditions demand of liquids near their boiling point with simple means using series pumps.
  • the solution according to the invention is that the housing member of the second or a further pump stage is designed with an annular flange as the lid of the pot, on which the inlet nozzle accessible above the pot is arranged.
  • the ring flange is preferably arranged on the housing member of the last or penultimate stage so that the pump protrudes as deeply as possible into the pot.
  • Either the inlet connector can be directly connected to the lid (for example welded), or an attachment option for the inlet connector is provided on the lid.
  • the liquid calming can be improved even further according to the invention by arranging flow guide ribs in the pot, which preferably run away from the pot lid.
  • the arrangement of flow guide ribs is particularly expedient when the pump is not arranged centrally in the pot.
  • the distance between the pump inlet and the wall of the pot opposite the pump inlet should be at least equal to the diameter of the pump inlet.
  • This cover carries the pump 2 with a vertical axis by being designed as a housing member 6 of the third stage of a total of four pump stages.
  • This design has the advantage that the pump is held in the cover in the simplest manner in such a way that the pump inlet 3 dips relatively deep into the pot.
  • that of the fourth stage 4 could also be designed as a pot cover if the flange of the pressure port 5 offers sufficient space for it.
  • this is arranged above the cover 7 and thus above the floor in which the pot 1 is lowered and is therefore freely accessible for assembly and maintenance.
  • the cover 7 contains a fixed connection to the inlet pipe elbow 8, the connecting flange of which is also above the level of the pot cover 7 lies.
  • the outlet opening 9 of the nozzle 8 is rounded like a diffuser to reduce the flow losses. In the neighborhood of this outlet opening - but possibly also in other areas of the pot 1 - flow guiding ribs can be provided to calm the conveying medium, one of which is indicated by dash-dotted lines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
EP82107260A 1981-09-11 1982-08-11 Mehrstufige Kreiselpumpe Expired EP0075100B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82107260T ATE12814T1 (de) 1981-09-11 1982-08-11 Mehrstufige kreiselpumpe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813136116 DE3136116A1 (de) 1981-09-11 1981-09-11 Mehrstufige kreiselpumpe
DE3136116 1981-09-11

Publications (3)

Publication Number Publication Date
EP0075100A1 EP0075100A1 (de) 1983-03-30
EP0075100B1 EP0075100B1 (de) 1985-04-17
EP0075100B2 true EP0075100B2 (de) 1988-10-12

Family

ID=6141422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82107260A Expired EP0075100B2 (de) 1981-09-11 1982-08-11 Mehrstufige Kreiselpumpe

Country Status (9)

Country Link
EP (1) EP0075100B2 (da)
AT (1) ATE12814T1 (da)
AU (1) AU8750182A (da)
DE (2) DE3136116A1 (da)
DK (1) DK405282A (da)
ES (1) ES276130Y (da)
NO (1) NO822996L (da)
NZ (1) NZ201627A (da)
ZA (1) ZA825936B (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481889B (zh) * 2014-12-22 2017-01-04 邓伟 一种即开节能立式自吸泵

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725506C (de) * 1940-01-12 1942-09-23 Wilhelm Beck Dipl Ing Selbstansaugende Kreiselpumpe
US2514865A (en) * 1945-04-13 1950-07-11 Ingersoll Rand Co Pumping unit
GB701511A (en) * 1949-11-01 1953-12-30 Hayward Tyler & Co Ltd Improvements in and relating to pump and motor combinations
FR2044994A5 (da) * 1969-05-29 1971-02-26 Guinard Pompes

Also Published As

Publication number Publication date
EP0075100A1 (de) 1983-03-30
ZA825936B (en) 1983-07-27
DK405282A (da) 1983-03-12
ES276130Y (es) 1984-12-16
ATE12814T1 (de) 1985-05-15
DE3263132D1 (en) 1985-05-23
AU8750182A (en) 1983-03-17
DE3136116A1 (de) 1983-03-31
NZ201627A (en) 1985-04-30
NO822996L (no) 1983-03-14
EP0075100B1 (de) 1985-04-17
ES276130U (es) 1984-05-01

Similar Documents

Publication Publication Date Title
DE69206082T2 (de) Motorkühlungsvorrichtung.
DE1703365C3 (de) Pumpe, insbesondere Bilge- oder Sumpfpumpe
WO2014187648A1 (de) Mehrstufiges selbstansaugendes kreiselpumpenaggregat
DE1528650A1 (de) Versenkbare Einrichtung zur Fluessigkeitsfoerderung
DE4319619A1 (de) Tauchmotorpumpe
EP0075100B2 (de) Mehrstufige Kreiselpumpe
DE1916119A1 (de) Sumpfpumpe
DE202017100150U1 (de) Aufhängbares Trinkwasserversorgungssystem für Haustiere
DE3152367C2 (de) Tauchmotorpumpe
DE60131931T2 (de) Pumpeneingangsanschluss
DE2141102A1 (de) Verbesserung an einer neuen Art von Rotationspumpe für Flüssigkeiten
DE2903277A1 (de) Schraubenpumpe, insbesondere zur foerderung von abwasser u.dgl.
DE957097C (de) Selbstansaugende Fluegelradpumpe
DE3140392A1 (de) Mehrstufige kreiselpumpe
DE7714506U1 (de) Pumpen-aggregat, insbesondere spaltrohr- motorpumpen-aggregat
DE2409576C2 (de) Senkrechte Zentrifugaltauchpumpe
DE10047009A1 (de) Tauchpumpe
DE609425C (de) Aus einer hohlkegelfoermigen Schleuderscheibe und einem Ejektor bestehende Einrichtung zum Absaugen von in einen unter Fluessigkeiten arbeitenden Elektromotor eingedrungener Leck-fluessigkeit
DD209231A5 (de) Gestaltung des schachtrohres zur regulierung der fluessigkeitsfoerderung der tauchpumpe
DE3215247C2 (de) Pumpe für chemische (stromlose) Kupfer- und Nickelbäder
DE2034747C3 (de) Vertikale Kreiselpumpe für Flüssigkeiten
DE9314746U1 (de) Sedimenthomogenisator für Exzenterschnecken-Tauchpumpen
DE2818839A1 (de) Pumpe
DE9218449U1 (de) Tauchpumpenaggregat
DES0028578MA (da)

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

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19830407

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 12814

Country of ref document: AT

Date of ref document: 19850515

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3263132

Country of ref document: DE

Date of ref document: 19850523

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19850812

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: 19850831

Ref country code: LI

Effective date: 19850831

Ref country code: CH

Effective date: 19850831

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

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

Ref country code: NL

Effective date: 19860301

26 Opposition filed

Opponent name: KLEIN, SCHANZLIN & BECKER AG

Effective date: 19860116

NLR1 Nl: opposition has been filed with the epo

Opponent name: KLEIN, SCHANZLIN & BECKER AG

26 Opposition filed

Opponent name: GRUNDFOS INTERNATIONAL A/S

Effective date: 19860117

NLR1 Nl: opposition has been filed with the epo

Opponent name: GRUNDFOS INTERNATIONAL A/S

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: RC

REG Reference to a national code

Ref country code: FR

Ref legal event code: DA

BERE Be: lapsed

Owner name: SIHI G.M.B.H. & CO. K.G.

Effective date: 19860831

GBPC Gb: european patent ceased through non-payment of renewal fee
PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19881012

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

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

Ref country code: GB

Effective date: 19881121

ITF It: translation for a ep patent filed
ET3 Fr: translation filed ** decision concerning opposition
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890831

ITTA It: last paid annual fee
EUG Se: european patent has lapsed

Ref document number: 82107260.0

Effective date: 19860729

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

Ref country code: DE

Payment date: 19971021

Year of fee payment: 16

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

Ref country code: FR

Payment date: 19980817

Year of fee payment: 17

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

Ref country code: AT

Payment date: 19980821

Year of fee payment: 17

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

Ref country code: DE

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

Effective date: 19990601

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

Ref country code: AT

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

Effective date: 19990811

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: 20000428

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST