EP0662196A1 - Pompe rotative comportant un carter a plusieurs sections. - Google Patents

Pompe rotative comportant un carter a plusieurs sections.

Info

Publication number
EP0662196A1
EP0662196A1 EP93920801A EP93920801A EP0662196A1 EP 0662196 A1 EP0662196 A1 EP 0662196A1 EP 93920801 A EP93920801 A EP 93920801A EP 93920801 A EP93920801 A EP 93920801A EP 0662196 A1 EP0662196 A1 EP 0662196A1
Authority
EP
European Patent Office
Prior art keywords
housing
jacket
centrifugal pump
parts
pump according
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
EP93920801A
Other languages
German (de)
English (en)
Other versions
EP0662196B1 (fr
Inventor
Ralf Mann
Wilfried Lehmann
Hermann Mueller
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
Application filed by Sihi GmbH and Co KG filed Critical Sihi GmbH and Co KG
Publication of EP0662196A1 publication Critical patent/EP0662196A1/fr
Application granted granted Critical
Publication of EP0662196B1 publication Critical patent/EP0662196B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • 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
    • F04D1/066—Multi-stage pumps of the vertically split casing type the casing consisting of a plurality of annuli bolted together
    • 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

Definitions

  • Each housing jacket includes the inner walls which are decisive for the function of the respective housing member. These inner walls, which define flow paths and medium spaces, sometimes form complicated hollow shapes and undercut contours, which are expensive to produce by casting. This also applies if the housing members are surrounded by a tube that absorbs the axial forces and centers the housing sheaths (US Pat. No. 4,708,589) or are arranged within an outer housing with the functional space leaving a step housing (EP-A 0 248 104). .
  • the invention aims to simplify the manufacturing conditions without impairing the uniform handling of the housing members. This is achieved by the features of claim 1, preferably also the subclaims.
  • housing members the housing jacket of which is composed of an outer jacket part which is continuous over the length of the respective link and at least two separate inner jacket parts, each with associated inner wall parts.
  • the outer and inner jacket parts are preferably firmly connected to one another. For example, they can be glued or shrunk together. Adhesive shrinkage is preferred for eliminating crevice corrosion.
  • the other housing members, the inner wall parts of which are not so complicated, can be of conventional design with only one housing jacket. However, it may also be expedient to design the housing shell in several parts in the manner indicated, in order to produce the same shell properties for all or most of the housing elements, in particular with regard to their strength.
  • the invention also has the advantage that different materials can be used for the inner and outer shell parts.
  • rolled material of high tensile strength can be used for the outer jacket part, while the inner jacket part consists of cast material.
  • the overall wall thickness but at least the thickness of the inner jacket part and thereby the casting weight, can be reduced.
  • This advantage is known per se (DE-A 28 08741, FR-A 536 590).
  • the seals between successive housing members are expediently provided on the outer casing part. However, it is also possible to attach them to the inner jacket part or to cover both jacket parts. Since the inner shell parts are responsible for the correct axial positioning of the inner wall parts, it is generally advisable to have the end faces of the inner shell parts of successive housing members adjoin one another. High accuracy can be achieved in particular if the jacket end faces, each composed of an outer and an inner jacket part, are machined uniformly (in one work step).
  • the fully loaded impeller 4 and 5 are in stage housings 8 and 9, each of which accommodate the impeller and form the nozzle 10 and 11 respectively.
  • undercut or closed spaces are formed which lie between inner wall parts 12 to 15 lying axially one behind the other.
  • housing members 8 and 9 containing these undercut inner wall parts is facilitated in that these housing members are subdivided along the parting plane 17 and 18. This results in two sub-members, to which the inner jacket parts 19 and 20 or 21 and 22 and so that the inner wall parts 12 and 13 or 14 and 15 are assigned in one piece. These are in turn encompassed by an outer jacket part 24 or 25, which is shrunk onto the inner jacket parts 21 or 22 by gluing and extends over the length of the respective housing member. Before that, the correct position of the inner jacket parts fixed to each other by a pin 23, if this is necessary.
  • a uniform housing member 8 or 9 is obtained, which combines all the tasks that this housing member also has with the known, one-piece design, and they can be handled uniformly in the usual manner during storage and assembly.
  • the housing members 8, 9 will be joined together reworked their jacket parts on the end faces 26.
  • the ring grooves provided therein for receiving a seal 30 are located in the outer casing part.
  • the housing members are clamped together as a pulling device by means of the bolts 29 which extend across all the housing members.
  • the housing shells of the housing members 8 and 9, which are subdivided internally, are made in two parts in the jacket region, but also the housing members 27, 28, although this would not be absolutely necessary in view of their inner wall parts 16.
  • the shells of all the members are constructed in the same way so that they can be dimensioned equally in terms of strength and their castings can be reduced in the same way.

Landscapes

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

Abstract

L'invention concerne une pompe rotative comportant un carter à plusieurs sections, dans laquelle les sections du carter (8, 9) présentent chacune une enveloppe cylindrique de carter et des parties de paroi intérieure (12 à 15) qui y sont liées d'une seule pièce. L'enveloppe d'au moins une section du carter (8, 9) comprend une partie (24, 25) continue extérieure et au moins deux parties (19 à 22) séparées intérieures avec les parties paroi intérieure (12-15) associées. Les parties d'enveloppe extérieures et intérieures sont fixées fermement les unes aux autres de manière appropriée, notamment par collage à chaud.
EP93920801A 1992-09-24 1993-09-22 Pompe rotative comportant un carter a plusieurs sections Expired - Lifetime EP0662196B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4232020 1992-09-24
DE4232020A DE4232020A1 (de) 1992-09-24 1992-09-24 Kreiselmaschine, insbesondere Kreiselpumpe, in Gliedergehäusebauart
PCT/EP1993/002570 WO1994007031A1 (fr) 1992-09-24 1993-09-22 Pompe rotative comportant un carter a plusieurs sections

Publications (2)

Publication Number Publication Date
EP0662196A1 true EP0662196A1 (fr) 1995-07-12
EP0662196B1 EP0662196B1 (fr) 1996-12-18

Family

ID=6468746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93920801A Expired - Lifetime EP0662196B1 (fr) 1992-09-24 1993-09-22 Pompe rotative comportant un carter a plusieurs sections

Country Status (11)

Country Link
US (1) US5549450A (fr)
EP (1) EP0662196B1 (fr)
AT (1) ATE146564T1 (fr)
AU (1) AU672620B2 (fr)
CA (1) CA2144443C (fr)
DE (2) DE4232020A1 (fr)
DK (1) DK0662196T3 (fr)
ES (1) ES2097540T3 (fr)
FI (1) FI105126B (fr)
GR (1) GR3022695T3 (fr)
WO (1) WO1994007031A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4232020A1 (de) * 1992-09-24 1994-03-31 Sihi Gmbh & Co Kg Kreiselmaschine, insbesondere Kreiselpumpe, in Gliedergehäusebauart
US5407323A (en) * 1994-05-09 1995-04-18 Sta-Rite Industries, Inc. Fluid pump with integral filament-wound housing
JP3971018B2 (ja) * 1998-02-24 2007-09-05 Ｓｍｃ株式会社 浸漬式ポンプ
EP2505843A1 (fr) * 2011-03-29 2012-10-03 Grundfos Management a/s Agencement de pompes centrifuges

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR536590A (fr) * 1921-06-09 1922-05-05 Acec Perfectionnement apporté à la construction des pompes centrifuges, des turbines et des ventilateurs
US3051090A (en) * 1960-08-04 1962-08-28 Worthington Corp Segmented casing for multistage centrifugal fluid machines
US3927763A (en) * 1970-12-15 1975-12-23 Bbc Sulzer Turbomaschinen Installation unit for a multistage radial compressor
IT1073007B (it) * 1975-10-30 1985-04-13 Klein Schanzlin & Becker Ag Pompa a motore immersa
DE2614163C2 (de) * 1976-04-02 1977-10-13 Balcke-Dürr AG, 4030 Ratingen Mehrstufige Kreiselpumpe
US4116583A (en) * 1977-03-02 1978-09-26 Worthington Pump, Inc. Multi-purpose end casings for ring type multi-stage centrifugal pumps
US4131386A (en) * 1977-05-05 1978-12-26 Sundstrand Corporation Sealing system for centrifugal pump
DE2808741C2 (de) * 1978-03-01 1985-04-25 Loewe Pumpenfabrik GmbH, 2120 Lüneburg Stufengehäuse für mehrstufige Kreiselpumpen
US4264285A (en) * 1979-01-18 1981-04-28 Kobe, Inc. Downhole cleaner assembly for cleansing lubricant of downhole turbo-machines within wells
US4708589A (en) * 1985-09-19 1987-11-24 The Marley-Wylain Company Roll-formed submersible pump
CH669979A5 (fr) * 1986-04-30 1989-04-28 Sulzer Ag
US4781531A (en) * 1987-10-13 1988-11-01 Hughes Tool Company Centrifugal pump stage with abrasion resistant elements
SU1620682A1 (ru) * 1988-09-26 1991-01-15 Уральский филиал Всесоюзного теплотехнического научно-исследовательского института им.Ф.Э.Дзержинского Центробежный насос
FR2661218B1 (fr) * 1990-04-24 1992-07-31 Salmson Pompes Ensemble de pompe centrifuge verticale.
DE4232020A1 (de) * 1992-09-24 1994-03-31 Sihi Gmbh & Co Kg Kreiselmaschine, insbesondere Kreiselpumpe, in Gliedergehäusebauart
US5385445A (en) * 1993-12-03 1995-01-31 Ingersoll-Dresser Pump Company Centrifugal pump
US5407323A (en) * 1994-05-09 1995-04-18 Sta-Rite Industries, Inc. Fluid pump with integral filament-wound housing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9407031A1 *

Also Published As

Publication number Publication date
CA2144443C (fr) 2000-05-02
DE59304838D1 (de) 1997-01-30
FI951381A (fi) 1995-03-23
AU4818793A (en) 1994-04-12
WO1994007031A1 (fr) 1994-03-31
AU672620B2 (en) 1996-10-10
US5549450A (en) 1996-08-27
DK0662196T3 (da) 1997-06-09
FI951381A0 (fi) 1995-03-23
EP0662196B1 (fr) 1996-12-18
DE4232020A1 (de) 1994-03-31
CA2144443A1 (fr) 1994-03-31
ES2097540T3 (es) 1997-04-01
GR3022695T3 (en) 1997-05-31
ATE146564T1 (de) 1997-01-15
FI105126B (fi) 2000-06-15

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