EP0442883A1 - Strömungsmaschine - Google Patents

Strömungsmaschine

Info

Publication number
EP0442883A1
EP0442883A1 EP89906085A EP89906085A EP0442883A1 EP 0442883 A1 EP0442883 A1 EP 0442883A1 EP 89906085 A EP89906085 A EP 89906085A EP 89906085 A EP89906085 A EP 89906085A EP 0442883 A1 EP0442883 A1 EP 0442883A1
Authority
EP
European Patent Office
Prior art keywords
ring element
shaft
impeller
face
turbomachine 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.)
Pending
Application number
EP89906085A
Other languages
German (de)
English (en)
French (fr)
Inventor
Karlheinz Becker
Karl-Heinz Bayer
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 EP0442883A1 publication Critical patent/EP0442883A1/de
Pending 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
    • 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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings 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
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous

Definitions

  • the invention relates to a turbomachine according to the preamble of the main claim.
  • the invention is based on the object of providing a measure for a fluid-flow machine which is supplied with a conveying medium containing solids of the aforementioned size by means of which a space surrounding the shaft seal and the shaft seal itself can be protected against erosion wear .
  • This object is achieved in accordance with the characterizing part of the main claim.
  • Embodiments of the invention described in claims 4 to 8 have the effect that no signs of wear and tear were detectable either on the shaft seal or in the space surrounding the shaft seal.
  • the split ring seal was damaged within a very short time without the ring element. If instead an annular element according to the invention was arranged in the space receiving the shaft seal, no signs of wear were detectable even on the split ring seal after a long test period.
  • the configurations of claims 9 to 11 describe the different possibilities for producing the ring element.
  • FIG. 1 shows a housing (1) of a turbomachine, which is designed here as a centrifugal pump, and an impeller (2) arranged inside the housing (1).
  • the impeller is equipped with split ring seals (3, 4) on the suction and pressure side.
  • the impeller (2) is fastened on a shaft (5), on which a shaft protection sleeve (6) and a shaft seal (7) designed as a mechanical seal are also fastened.
  • the impeller (2) has axial thrust compensation bores (9) in the area of the impeller hub (8) in the impeller cover disk on the pressure side.
  • the housing (1) Inside the space (10) surrounding the shaft seal (7), the housing (1), here a pressure-side housing cover (11), has an attached ring element (12). It extends in the area between the split ring (13) attached to the impeller and the impeller hub (8) and the shaft seal (7).
  • the free end face of the ring element (11) has a surface (14) running radially to the shaft, to the smallest diameter of which a nozzle (15) pointing in the axial direction to the shaft seal (7) is attached.
  • the ring element (12) formed here as a sheet metal part can also be designed as a solid part which would have a backward rotation on the side facing the shaft seal. Furthermore, it can be formed in one piece with the split ring (16) fixed to the housing.
  • FIG. 2 largely corresponds to that of FIG. 1.
  • the ring element (12) is provided on its free end face only with a surface (14) running in the radial direction to the shaft.
  • Fig. 3 shows a truncated cone-shaped ring element (12) which runs diagonally to the shaft axis, its free end face (17) facing the shaft (5).
  • a nozzle (15) attached to it shown in FIGS. 1 and 2 Tear-off edge, with the aid of which erosion wear can be prevented within the space (10).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
  • Hydraulic Turbines (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Cyclones (AREA)
  • Paper (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Centrifugal Separators (AREA)
EP89906085A 1988-06-13 1989-05-30 Strömungsmaschine Pending EP0442883A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3820062A DE3820062A1 (de) 1988-06-13 1988-06-13 Stroemungsmaschine
DE3820062 1988-06-13

Publications (1)

Publication Number Publication Date
EP0442883A1 true EP0442883A1 (de) 1991-08-28

Family

ID=6356432

Family Applications (2)

Application Number Title Priority Date Filing Date
EP89109759A Expired - Lifetime EP0346677B1 (de) 1988-06-13 1989-05-30 Strömungsmaschine
EP89906085A Pending EP0442883A1 (de) 1988-06-13 1989-05-30 Strömungsmaschine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP89109759A Expired - Lifetime EP0346677B1 (de) 1988-06-13 1989-05-30 Strömungsmaschine

Country Status (10)

Country Link
US (1) US5171126A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (2) EP0346677B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH0646037B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE75818T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1330908C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE3820062A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK171831B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES2032073T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GR (1) GR3005061T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO1989012755A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04123387U (ja) * 1991-04-22 1992-11-09 三菱重工業株式会社 スラリー用ポンプ
AU662811B2 (en) * 1992-04-08 1995-09-14 Alexander Phillip Caldwell Improvements to pump assemblies
EP0721546B1 (de) * 1993-09-25 1998-12-02 KSB Aktiengesellschaft Strömungsmaschine mit verringertem abrasiven verschleiss
DE4431947A1 (de) * 1993-09-25 1995-03-30 Klein Schanzlin & Becker Ag Strömungsmaschine mit verringertem abrasiven Verschleiß
GB2290113B (en) * 1994-05-31 1998-07-15 Ingersoll Dresser Pump Co Centrifugal pump
DE19503318C2 (de) * 1995-02-02 1997-11-20 Kronos Titan Gmbh Spülung der Dichtung bei einer Pumpe zur Förderung stark salzhaltiger Medien
GB2307276A (en) * 1996-03-06 1997-05-21 Shell Int Research Multi-phase fluid compressor
DE50012259D1 (de) * 2000-01-11 2006-04-27 Sulzer Pumpen Ag Winterthur Strömungsmaschine für ein Fluid mit einem radialen Dichtspalt zwischen Statorteilen und einem Rotor
FR2904038A1 (fr) 2006-07-19 2008-01-25 Snecma Sa Systeme de refroidissement de la face aval d'un rouet de compresseur centrifuge
CN103343752B (zh) 2008-05-27 2015-12-02 伟尔矿物澳大利亚私人有限公司 离心泵叶轮
JP5384322B2 (ja) * 2009-12-28 2014-01-08 株式会社荏原製作所 ポンプ用羽根車及びそれを備えた水中ポンプ
CN208169144U (zh) * 2018-02-05 2018-11-30 上海荣威塑胶工业有限公司 具有防水结构的泵

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE510831A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) *
DE510831C (de) * 1927-08-09 1930-10-30 Hyppolyte Fabre Hochziehbare Schalung
US2270054A (en) * 1939-10-13 1942-01-13 Georgia Iron Works Water seal for pumps
US2407218A (en) * 1945-02-09 1946-09-10 Schwitzer Cummins Company Fluid sealing device
GB611186A (en) * 1946-04-24 1948-10-26 Harland Engineering Co Ltd Centrifugal pumps
US2649050A (en) * 1950-02-02 1953-08-18 Dunlop Tire & Rubber Corp Centrifugal pump
DE815605C (de) * 1950-03-17 1951-10-04 Giesserei G M B H Kreiselpumpe mit druckentlasteter Stopfbuechse
US2722439A (en) * 1952-08-28 1955-11-01 Brummer Seal Company Unitary seal device
US2798438A (en) * 1953-05-11 1957-07-09 Mack Trucks Means for securing a pump impeller to a shaft
US3213798A (en) 1964-03-16 1965-10-26 Ingersoll Rand Co Sealing and cooling device for a pump shaft
US3474733A (en) * 1967-10-04 1969-10-28 Us Army Water pump and method of assembly
US3677659A (en) * 1970-07-31 1972-07-18 Worthington Corp Multi-stage pump and components therefor
DE2344576A1 (de) * 1973-09-04 1975-03-13 Neratoom Kreiselpumpe zum verarbeiten von schleifende bestandteile enthaltenden fluessigkeiten, insbesondere eine sandpumpe oder schmutzwasserpumpe
US3881840A (en) * 1973-09-05 1975-05-06 Neratoom Centrifugal pump for processing liquids containing abrasive constituents, more particularly, a sand pump or a waste-water pumper
JPS5269003A (en) * 1975-12-05 1977-06-08 Kubota Ltd Mechanical seal protector of pump
DE2710913A1 (de) * 1977-03-12 1978-09-14 Klein Schanzlin & Becker Ag Kreiselpumpe mit axialschubausgleich durch druckseitigen drosselspalt fuer insbesondere radial durchstroemte laufraeder
EP0245241A1 (en) * 1985-11-13 1987-11-19 Sealing Devices Pty. Ltd. Seal assembly
IT1206866B (it) * 1987-01-28 1989-05-11 Riv Officine Di Villar Perosa Cuscinetto stagno per condizioni dilavoro eccezionalmente gravose

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8912755A1 *

Also Published As

Publication number Publication date
EP0346677A1 (de) 1989-12-20
WO1989012755A1 (en) 1989-12-28
DE58901311D1 (de) 1992-06-11
GR3005061T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-05-24
DK294990D0 (da) 1990-12-12
ES2032073T3 (es) 1993-01-01
DE3820062A1 (de) 1989-12-21
DK294990A (da) 1990-12-12
CA1330908C (en) 1994-07-26
ATE75818T1 (de) 1992-05-15
JPH03501761A (ja) 1991-04-18
EP0346677B1 (de) 1992-05-06
DK171831B1 (da) 1997-06-23
JPH0646037B2 (ja) 1994-06-15
US5171126A (en) 1992-12-15

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Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 89109759.4/0346677 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 23.10.91.