EP0797736B1 - Carter de pompe - Google Patents

Carter de pompe Download PDF

Info

Publication number
EP0797736B1
EP0797736B1 EP95941671A EP95941671A EP0797736B1 EP 0797736 B1 EP0797736 B1 EP 0797736B1 EP 95941671 A EP95941671 A EP 95941671A EP 95941671 A EP95941671 A EP 95941671A EP 0797736 B1 EP0797736 B1 EP 0797736B1
Authority
EP
European Patent Office
Prior art keywords
insert
pump casing
wall element
impeller
lining
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
EP95941671A
Other languages
German (de)
English (en)
Other versions
EP0797736A1 (fr
Inventor
Karl Heinz Becker
Armin Renneisen
Axel Riel
Frank Schwaab
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 EP0797736A1 publication Critical patent/EP0797736A1/fr
Application granted granted Critical
Publication of EP0797736B1 publication Critical patent/EP0797736B1/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
    • 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
    • F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
    • 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
    • F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/622—Adjusting the clearances between rotary and stationary parts

Definitions

  • the invention relates to a pump housing according to the preamble of claim 1.
  • a centrifugal pump is known from US-A-3,273,509, the metallic outer housing is made of plastic Inner casing encased.
  • the inner case is for mounting one Impeller formed in two parts.
  • the tubular lining part also serves as Holder for a suction-side screw to be screwed into it Pipeline.
  • the invention is based on the problem of a pump housing train it for different impeller shapes with good Efficiency is usable. This problem is solved with the features of claim 1.
  • a trained as an interchangeable component insert the suction opening of the lined pump housing and its sealing system can be a pump housing for various Find impeller sizes.
  • the difference in Entry area of the suction mouth from the impeller becomes easier Way balanced by the appropriate size of the stake.
  • the suction opening of the housing which is also under the term Suction nozzle is known, thus allows a very economical production of a pump housing.
  • the stake can be designed as a solid component, the Wall thickness is adaptable to the respective purpose. In which any material suitable for the respective pumped medium Can be used.
  • the use can also be done just as well With the help of spacer ribs within the suction opening be attached. Likewise it is possible within the Use ribs as flow-guiding elements.
  • the Sealing against the pump housing can be in the area of outer face of the suction opening.
  • So-called flange seals can be used with a Fit the flange surface sealingly against the flange surface and at the same time the seal for a flange to be flanged to it Form pipeline. It is the same with others known flange connections possible.
  • An embodiment of the invention provides that the use as lining element arranged in the suction opening is.
  • the interchangeable insert is on its inside the Pump housing located end so that it a gap seal together with the suction mouth of an impeller forms to the pressure losses within the housing to low hold.
  • this type of gap seal is due to the DE-A-35 17 828 known.
  • Another embodiment of the invention provides that on the end of the insert located inside the pump housing a wall element that can be changed in its axial position is attached. This will make it possible within the Pump housing also use a so-called open impeller to be found, depending on the medium and Use the distance between the wall element and the open impeller can be selected.
  • the wall element can be attached to the insert so that it is in its Position cannot be changed.
  • Another embodiment of the invention provides that between the insert and an associated wall element Transfer means are arranged, or that the wall element is axially displaceable by means of the transmission means.
  • the insert would then be a kind of socket designed and within the suction opening in streamlined Arranged way.
  • the wall element that usually is disc-shaped, the use in Stand by connection. For example, at assembled pump from the outside by turning the insert Wall element with the desired distance to an impeller can be set. The same would also be possible if due to weary media an adjustment of the wall element should be necessary.
  • the use can then by known Means secured against twisting after adjustment will.
  • means of transmission are provided with whose help is an axial displacement of the wall element takes place.
  • This can be various constructive Act elements to bayonet-like elements, inclined surfaces, or act as a threaded connection.
  • bayonets or bevels opposite the Have a slope circumferential direction, and at a Twist of the insert on the corresponding counter surfaces of the Wall element trigger an axial displacement.
  • the wall element in a so-called open impeller to be positioned close to the blades of the impeller, that the flow losses are minimized.
  • a further embodiment of the invention provides sealants and / or anti-rotation elements between Wall element and pump housing are arranged.
  • the Anti-rotation elements prevent the Wall element in one setting and also one Change of position during operation.
  • the sealing elements also prevent deformation of the wall surface element due to different pressure conditions within the Pump housing.
  • the sealing elements are arranged so that there is no pressure between the wall element and the pump housing builds up the wall element against the rotating impeller can press.
  • the lining made of rubber, elastomer or equivalent Material can exist, which in the following as plastic , extends the area of application of the Pump housing to convey dangerous media. This is for example in the chemical industry of special meaning.
  • the wall element can have the additional function that according to its constructive design against the Housing liner is pressed.
  • Both an open and a closed inside the pump housing closed impeller are used.
  • To generate a Gap seal would then be the suction mouth of a closed one Impeller in a corresponding section of the wall element immerse yourself.
  • the housing 1 shows a pump housing 1, which consists of two Share 1 a and 1 b. Because of the division that goes along the sub-level A-A takes place, the housing 1 with a Lining 11 may be provided. The lining that as injected component can be produced, is between the Housing parts 1 a, 1 b inserted and thus prevents one Liquid contact between the medium and the force-absorbing housing parts 1 a and 1 b.
  • Within the Housing 1 or the lining 11 is an open Impeller 2 with a wall element 3 on the suction side opposite.
  • the wall element 3 has an opening 4, are arranged in the transmission means 5.
  • This Transmission means 5 cooperate with an insert 6, the is designed as a lining element in this example.
  • the insert 6 is in the embodiment shown here from the outside of the pump housing through the one Flow of a medium serving opening 7 in the Pump housing 1 inserted.
  • a collar 8 of the insert 6 lies here on an outer flange of the opening 7 or one Intake port sealing and is closed by one fastening - not shown here - pipeline in his Position held.
  • the cross sections of the opening 7 are here dimensioned such that the insert 6 and the lining 11 the flow to the impeller is in no way hindered. Additional attachable sealing elements prevent in an effective exit of a medium from the Pump housing.
  • the lining 11 can be provided with anti-rotation elements 10 be provided, the rotation of the wall element 3rd prevent.
  • anti-rotation elements 10 By turning the insert 6 is the axial Position of the wall element 3 changeable.
  • anti-rotation elements 10 possible, the insert 6 does not rotate within the opening 7 form and the wall element 3 relative to the insert 6 twist. This depends on the particular one Design principle of the pump.
  • the impeller When assembling the pump shown here, it can be twisted of the insert 7, the axial position of the wall element 3 to be changed.
  • the impeller can be a designated one Distance between an impeller 2 and the wall element 3 in can be easily set from the outside. Due to the radial dimensioning of the insert 6 can also Are used for wheels with a smaller than that inlet diameter shown here. So there is Possibility of using wheels within a housing to arrange different diameters in the entrance area and through different inserts 6 an optimization of To create inflow conditions.

Landscapes

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

Claims (7)

  1. Corps de pompe réalisé en plusieurs parties et avec une roue mobile disposée à l'intérieur, se composant de parties de corps extérieures (1a, 1b) reprenant les efforts et d'un garnissage intérieur (11), dans lequel le garnissage (11) empêche un contact liquide entre un fluide de transport et les parties de corps (1a, 1b) reprenant les efforts, caractérisé en ce qu'une garniture (6), constituant un composant interchangeable et appliquée de façon étanche sur le corps de pompe, est disposée dans la région de l'ouverture d'aspiration (7) dans le garnissage (11), en ce qu'une extrémité de la garniture (6) se trouvant à l'intérieur du corps de pompe fait face à une embouchure d'aspiration de la roue mobile, et en ce que la garniture (6) constitue un moyen de réglage disposé dans l'ouverture d'aspiration (7).
  2. Corps de pompe suivant la revendication 1, caractérisé en ce que la garniture (6) constitue un élément du garnissage.
  3. Corps de pompe suivant la revendication 1 ou 2, caractérisé en ce qu'un élément de paroi variable en position axiale est fixé sur l'extrémité de la garniture (6) se trouvant à l'intérieur du corps de pompe.
  4. Corps de pompe suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que des moyens de transmission (5) sont disposés entre la garniture (6) et un élément de paroi (3) relié à celle-ci.
  5. Corps de pompe suivant la revendication 4, caractérisé en ce que l'élément de paroi (3) peut être déplacé axialement au moyen des moyens de transmission (5).
  6. Corps de pompe suivant l'une quelconque des revendications 1 à 5, caractérisé en ce que des moyens d'étanchéité (12) et/ou des éléments de calage contre la rotation (10) sont disposés entre l'élément de paroi (3) et le corps de pompe (1, 11).
  7. Corps de pompe suivant l'une quelconque des revendications 1 à 6, caractérisé en ce qu'un élément de paroi (3) peut être pressé contre le garnissage (11) avec la garniture (6).
EP95941671A 1994-12-16 1995-12-05 Carter de pompe Expired - Lifetime EP0797736B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4444966A DE4444966A1 (de) 1994-12-16 1994-12-16 Pumpengehäuse
DE4444966 1994-12-16
PCT/EP1995/004781 WO1996018821A1 (fr) 1994-12-16 1995-12-05 Carter de pompe

Publications (2)

Publication Number Publication Date
EP0797736A1 EP0797736A1 (fr) 1997-10-01
EP0797736B1 true EP0797736B1 (fr) 1998-05-13

Family

ID=6536057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95941671A Expired - Lifetime EP0797736B1 (fr) 1994-12-16 1995-12-05 Carter de pompe

Country Status (3)

Country Link
EP (1) EP0797736B1 (fr)
DE (2) DE4444966A1 (fr)
WO (1) WO1996018821A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3480473A1 (fr) 2017-11-02 2019-05-08 Richter Chemie-Technik GmbH Pompe circulaire à roue à aubes en matière plastique renforcée
DE202017007252U1 (de) 2017-11-02 2020-04-29 Richter Chemie-Technik Gmbh Kreiselpumpe mit verstärktem Kunststofflaufrad

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013221571B4 (de) * 2013-10-23 2016-06-02 BSH Hausgeräte GmbH Haushaltsgerät mit einem Pumpengehäuse
CA3189702A1 (fr) * 2020-08-25 2022-03-03 Thomas Muller Pompe centrifuge

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1289337A (en) * 1914-05-07 1918-12-31 Arthur R Wilfley Centrifugal pump.
US1958108A (en) * 1930-02-15 1934-05-08 Victor J Milkowski Centrifugal pump
DE629780C (de) * 1934-03-17 1936-05-11 J E Naeher Act Ges Aus gummierten Einsatzteilen bestehende auswechselbare Gehaeuseauskleidung fuer Schleudermaschinen, insbesondere Pumpen
US2232648A (en) * 1939-01-26 1941-02-18 Allen Sherman Hoff Co Centrifugal pump structure
US3273509A (en) * 1964-04-07 1966-09-20 Vanton Pump & Equipment Corp Centrifugal pump
US3318254A (en) * 1965-05-28 1967-05-09 Palmberg Construction Co Centrifugal dredge pump
DE2013606A1 (de) * 1970-03-21 1971-10-14 Hanning Elektro Werk Robert Ha Kreiselpumpe
FR2290133A6 (fr) * 1973-02-09 1976-05-28 Materiel Processing Internal Pompe centrifuge
DE2719168C2 (de) * 1977-04-29 1983-03-31 Klöckner-Humboldt-Deutz AG, 5000 Köln Gehäuse für eine Kreiselpumpe
DE3517828A1 (de) * 1985-05-17 1986-11-20 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Pumpengehaeuse
US4676717A (en) * 1985-05-22 1987-06-30 Cummins Atlantic, Inc. Compressor housing having replaceable inlet throat and method for manufacturing compressor housing
DE9111157U1 (de) * 1991-09-09 1993-01-14 Wernert-Pumpen GmbH, 4330 Mülheim Kreiselpumpe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3480473A1 (fr) 2017-11-02 2019-05-08 Richter Chemie-Technik GmbH Pompe circulaire à roue à aubes en matière plastique renforcée
DE202017007252U1 (de) 2017-11-02 2020-04-29 Richter Chemie-Technik Gmbh Kreiselpumpe mit verstärktem Kunststofflaufrad

Also Published As

Publication number Publication date
DE4444966A1 (de) 1996-06-20
WO1996018821A1 (fr) 1996-06-20
DE59502194D1 (de) 1998-06-18
EP0797736A1 (fr) 1997-10-01

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