EP0490908B1 - Corps de pompe centrifuge construit en tole - Google Patents

Corps de pompe centrifuge construit en tole Download PDF

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Publication number
EP0490908B1
EP0490908B1 EP90912183A EP90912183A EP0490908B1 EP 0490908 B1 EP0490908 B1 EP 0490908B1 EP 90912183 A EP90912183 A EP 90912183A EP 90912183 A EP90912183 A EP 90912183A EP 0490908 B1 EP0490908 B1 EP 0490908B1
Authority
EP
European Patent Office
Prior art keywords
annular space
housing
projections
centrifugal pump
pump 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.)
Expired - Lifetime
Application number
EP90912183A
Other languages
German (de)
English (en)
Other versions
EP0490908A1 (fr
Inventor
Karlheinz Becker
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
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 KSB AG filed Critical KSB AG
Publication of EP0490908A1 publication Critical patent/EP0490908A1/fr
Application granted granted Critical
Publication of EP0490908B1 publication Critical patent/EP0490908B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4266—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps made of sheet metal
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/428—Discharge tongues
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/914—Device to control boundary layer

Definitions

  • the invention relates to a centrifugal pump housing according to the preamble of the main claim.
  • Centrifugal pump housings in sheet metal construction have a very good strength and, depending on the material used, a high level of resistance to a wide variety of fluids.
  • a disadvantage of these housings made in sheet metal construction is their low resistance to abrasive components in the pumped medium. In contrast to a considerably thicker cast housing, the thin-walled sheet metal housing is rather damaged under the influence of abrasive components.
  • a sheet metal housing corresponding to the preamble is known from DE-A 35 17 498.
  • the housing has an opening on its outer periphery into which a pressure port is fitted.
  • the so-called spur formed by the pressure port which supports the entry of the medium from the annular space into the pressure port, can be designed flush with the annular space or protrude into the annular space.
  • the spur is very susceptible to wear when conveying media with abrasive components.
  • the invention is therefore based on the object of developing a solution for a generic pump housing, with the aid of which in the conveyance of media containing abrasive components, a service life corresponding to Cast housing guaranteed.
  • This object is achieved in accordance with the characterizing part of the main claim.
  • the exit from the annular space, in which flow is deflected into the pressure port, has been shown to be particularly hazardous to wear.
  • the solution according to the invention in which the efficiency remains almost the same, the flow in the area of the outlet opening is deflected to the center of the housing, in order to then get into the pressure port without damaging the outlet opening.
  • the one attached to the end edge of the outlet opening To a certain extent, the protrusion has a flow-introducing effect in the pressure port, but at the same time it also acts as a wearing part and protects the thin housing wall from damage.
  • An embodiment of the invention provides that the length of the projections corresponds to the width of the annular space.
  • the projections can extend over the entire length or several parts can be staggered.
  • the abrasive components are removed from the edge zone of the outlet opening by the projections and then freely enter the pressure port.
  • a projection attached to the end edge of the outlet opening projects into the pressure port.
  • the protrusion acts as wear protection for directly impacting abrasive parts.
  • An impeller (2) is located within a pump housing (1) made of sheet metal, an annular space (3) being formed between the impeller and the circumference of the pump housing.
  • the pumped medium emerging from the impeller circulates within this annular space and leaves the annular space (3) through an outlet opening (4) provided on the circumference of the pump housing, in order to subsequently enter a pressure port (5).
  • the pump housing is connected to a piping system.
  • projections (8, 9) extending transversely to the flow direction are arranged on the start edge (6) and end edge (7) of the outlet opening (4). These prevent abrasive parts in the pumped medium from destroying the outlet opening (4) and the downstream pressure port (5) when they exit the annular space.
  • the magnitude of the solids content corresponds to the values that pump manufacturers usually allow for pure water pumps.
  • the projection (9) has a design on the basis of which it still extends into the outlet opening (4) and the pressure connection (5) adjoining it.
  • the so-called housing spur (10) is thus protected against direct attack by the abrasive components.
  • the height (H) of the projections is determined on the basis of the inside diameter (D) of the housing (1). The lower the height of the projections (8, 9), the less important is their influence on the pump efficiency.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (8)

  1. Boîtier de pompe centrifuge de construction en tôle dans laquelle est placée une roue, une chambre annulaire formée entre la roue et le boîtier et une ouverture de sortie pour un tuyau de pression placé en aval laquelle est placée sur la circonférence de la chambre annulaire caractérisé en ce que l'ouverture de sortie (4) est munie dans la zone de leurs arêtes de début et de fin (6, 7) de deux ou plusieurs nez (8, 9) pénétrant dans la chambre annulaire (3) et en ce que les nez (8, 9) sont perpendiculaires au sens du courant.
  2. Boîtier de pompe selon la revendication 1 caractérisé en ce que la longueur des nez (8, 9) correspond à la largeur de la chambre annulaire (3).
  3. Boîtier de pompe selon les revendications 1 et 2 caractérisé en ce que des pièces posées et fixées dans la chambre annulaire (3) forment les nez (8, 9).
  4. Boîtier de pompe selon les revendications 1 et 2 caractérisé en ce que des empreintes pénétrant dans la chambre annulaire (3) forment les nez (8, 9).
  5. Boîtier de pompe selon la revendication 4 caractérisé en ce que les empreintes sur l'extérieur du boîtier sont munies de revêtements.
  6. Boîtier de pompe selon les revendications 1 à 5 caractérisé en ce que le rapport entre la hauteur (H) des nez et le diamètre (D) de la chambre annulaire se situe entre 0,01 et 0,04.
  7. Boîtier de pompe selon les revendications 1 à 6 caractérisé en ce qu'un nez (9) placé sur l'arête finale (7) de l'ouverture de sortie (4) pénètre dans l'ouverture de sortie (4) et dans un tuyau de pression (5) placé à côté.
  8. Boîtier de pompe selon l'une ou plusieurs des revendications 1 à 7 caractérisé en ce que plusieurs nez sont répartis sur la circonférence du boîtier de la chambre annulaire (1).
EP90912183A 1989-09-07 1990-08-20 Corps de pompe centrifuge construit en tole Expired - Lifetime EP0490908B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3929758 1989-09-07
DE3929758A DE3929758C2 (de) 1989-09-07 1989-09-07 Kreiselpumpengehäuse in Blechbauweise
PCT/EP1990/001373 WO1991003649A1 (fr) 1989-09-07 1990-08-20 Corps de pompe centrifuge construit en tole

Publications (2)

Publication Number Publication Date
EP0490908A1 EP0490908A1 (fr) 1992-06-24
EP0490908B1 true EP0490908B1 (fr) 1995-05-31

Family

ID=6388838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90912183A Expired - Lifetime EP0490908B1 (fr) 1989-09-07 1990-08-20 Corps de pompe centrifuge construit en tole

Country Status (10)

Country Link
US (1) US5228831A (fr)
EP (1) EP0490908B1 (fr)
JP (1) JPH0647998B2 (fr)
CN (1) CN1022260C (fr)
AT (1) ATE123329T1 (fr)
CA (1) CA2066434C (fr)
DD (1) DD300241A5 (fr)
DE (2) DE3929758C2 (fr)
MX (1) MX172517B (fr)
WO (1) WO1991003649A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239071C2 (de) * 1992-11-20 1997-01-30 Grundfos As Tauchpumpenaggregat
CA2146816A1 (fr) 1994-04-22 1995-10-23 Joachim E. Klee Methode et composition pour la preparation d'un produit polymerique dentaire
JP3524674B2 (ja) 1995-11-24 2004-05-10 東レ・ダウコーニング・シリコーン株式会社 オルガノポリシロキサン組成物およびその製造方法
US6146092A (en) * 1998-07-13 2000-11-14 Ford Motor Company Centrifugal blower assembly with a diffuser
NO319000B1 (no) * 2000-03-01 2005-06-06 Small Turbine Partner As Radialvannturbin
US20030039541A1 (en) * 2001-08-20 2003-02-27 Xerox Corporation Blower noise reducing device and a blower having same
US6988870B2 (en) * 2004-01-27 2006-01-24 Weir Slurry Group, Inc. Casing for a centrifugal pump
TWI257836B (en) * 2004-04-23 2006-07-01 Quanta Comp Inc Turbulent blower
MX351965B (es) * 2008-06-06 2017-11-06 Weir Minerals Australia Ltd Caja o cubierta para bomba.
US9334876B2 (en) 2011-04-12 2016-05-10 Thermo Neslab Inc. Pump casing and related apparatus and methods
DE102015007100A1 (de) * 2015-06-08 2016-12-08 Gea Tuchenhagen Gmbh Selbstansaugende Pumpenaggregation
JP6909069B2 (ja) * 2017-06-20 2021-07-28 株式会社日本クライメイトシステムズ 車両用空調装置の送風機
DE102017223602A1 (de) * 2017-12-21 2019-08-01 KSB SE & Co. KGaA Kreiselpumpe mit Gussbauteil
DE102018218989A1 (de) * 2018-11-07 2020-05-07 KSB SE & Co. KGaA Mantelgehäusepumpe
CN111561477B (zh) * 2020-05-13 2024-12-20 上海东方泵业(集团)有限公司 一种新型的带可拆卸隔舌活块的中开式双吸泵
CN117722393B (zh) * 2024-01-30 2025-04-08 扬州大学 一种离心泵隔舌结构
CN120292119B (zh) * 2025-05-19 2026-06-23 江苏大学 一种带有复合降噪结构的离心泵蜗壳

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US893113A (en) * 1906-07-17 1908-07-14 John Alonzo Traylor Packing-ring for rotary pumps.
DE569707C (de) * 1931-04-17 1933-02-07 Ton & Steinzeug Werke Akt Ges Kreiselpumpengehaeuse fuer den Einbau von Fluegelraedern verschiedenen Durchmessers
US1914919A (en) * 1931-10-30 1933-06-20 Allis Chalmers Mfg Co Centrifugal pump
DE1158841B (de) * 1959-06-10 1963-12-05 M U K H Schreiner Saugbagger U Pumpe zur Foerderung von Feststoff-Wasser-Gemischen mit auswechselbarem Innengehaeuse
CH503907A (de) * 1968-07-13 1971-02-28 Siemens Ag Einrichtung zum selbsttätigen Unterbinden der Flüssigkeitsförderung einer Kreiselpumpe bei Rückwärtslauf
DE1728158A1 (de) * 1968-09-03 1972-03-09 Siemens Elektrogeraete Gmbh Querstromgeblaese
US3647314A (en) * 1970-04-08 1972-03-07 Gen Electric Centrifugal pump
FR2264204B1 (fr) * 1974-03-11 1978-11-10 Mpi Sa Material Processing Int
US4076450A (en) * 1976-01-14 1978-02-28 United Centrifugal Pumps Double volute pump with replaceable lips
GB1558834A (en) * 1977-12-19 1980-01-09 Hall J K H Repair of metallic components
FR2413571A1 (fr) * 1977-12-30 1979-07-27 Lab Perfectionnements aux machines dans lesquelles un fluide est mis en rotation
SU1016563A1 (ru) * 1981-08-19 1983-05-07 Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт Центробежный грунтовый насос
DE3323167A1 (de) * 1983-06-28 1985-01-03 Soudbrase-Schweißtechnik GmbH, 7500 Karlsruhe Verfahren zum herstellen und reparieren von pumpengehaeusen fuer pumpen, die zum foerdern von sand- und kieshaltigem foerdergut dienen sowie pumpen dieser art
NZ211792A (en) * 1984-04-18 1986-09-10 Warman Int Ltd Centrifugal pump casing
DE3517498C3 (de) * 1985-05-15 1993-12-02 Klein Schanzlin & Becker Ag Kreiselpumpengehäuse
US4789301A (en) * 1986-03-27 1988-12-06 Goulds Pumps, Incorporated Low specific speed pump casing construction

Also Published As

Publication number Publication date
EP0490908A1 (fr) 1992-06-24
CA2066434A1 (fr) 1991-03-08
ATE123329T1 (de) 1995-06-15
MX172517B (es) 1993-12-16
CN1022260C (zh) 1993-09-29
JPH0647998B2 (ja) 1994-06-22
DE59009190D1 (de) 1995-07-06
WO1991003649A1 (fr) 1991-03-21
DE3929758A1 (de) 1991-03-21
DE3929758C2 (de) 1994-11-17
CA2066434C (fr) 1999-10-05
DD300241A5 (de) 1992-05-27
US5228831A (en) 1993-07-20
JPH04503848A (ja) 1992-07-09
CN1050079A (zh) 1991-03-20

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