EP0346677B1 - Strömungsmaschine - Google Patents

Strömungsmaschine Download PDF

Info

Publication number
EP0346677B1
EP0346677B1 EP89109759A EP89109759A EP0346677B1 EP 0346677 B1 EP0346677 B1 EP 0346677B1 EP 89109759 A EP89109759 A EP 89109759A EP 89109759 A EP89109759 A EP 89109759A EP 0346677 B1 EP0346677 B1 EP 0346677B1
Authority
EP
European Patent Office
Prior art keywords
ring element
shaft
turbomachine
impeller
end side
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
EP89109759A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0346677A1 (de
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
Priority to AT89109759T priority Critical patent/ATE75818T1/de
Publication of EP0346677A1 publication Critical patent/EP0346677A1/de
Application granted granted Critical
Publication of EP0346677B1 publication Critical patent/EP0346677B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 has for its object to provide a measure for a turbomachine which is supplied with a conveying medium containing solids of the aforementioned magnitude, 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 dangerous wear marks were not 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 an annular element according to the invention was instead 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 attached to a shaft (5) on which a shaft protection sleeve (6) and a shaft seal (7) designed as a mechanical seal are also attached.
  • 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 ring element (12) fastened in the housing (1) is arranged within the space (10) surrounding the shaft seal (7), here a pressure-side housing cover (11). 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, on 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. A difference is that the ring element (12) is provided on its free end face only with a surface (14) extending in the radial direction to the shaft.
  • Fig. 3 shows a truncated conical 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 help 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)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Centrifugal Separators (AREA)
  • Hydraulic Turbines (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
  • Cyclones (AREA)
  • Paper (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP89109759A 1988-06-13 1989-05-30 Strömungsmaschine Expired - Lifetime EP0346677B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89109759T ATE75818T1 (de) 1988-06-13 1989-05-30 Stroemungsmaschine.

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 (2)

Publication Number Publication Date
EP0346677A1 EP0346677A1 (de) 1989-12-20
EP0346677B1 true EP0346677B1 (de) 1992-05-06

Family

ID=6356432

Family Applications (2)

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

Family Applications Before (1)

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

Country Status (10)

Country Link
US (1) US5171126A (da)
EP (2) EP0442883A1 (da)
JP (1) JPH0646037B2 (da)
AT (1) ATE75818T1 (da)
CA (1) CA1330908C (da)
DE (2) DE3820062A1 (da)
DK (1) DK171831B1 (da)
ES (1) ES2032073T3 (da)
GR (1) GR3005061T3 (da)
WO (1) WO1989012755A1 (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431947A1 (de) * 1993-09-25 1995-03-30 Klein Schanzlin & Becker Ag Strömungsmaschine mit verringertem abrasiven Verschleiß
US5984629A (en) * 1993-09-25 1999-11-16 Ksb Aktiengesellscaft Turbo-machine with reduced abrasive wear

Families Citing this family (10)

* 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
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
EA024954B1 (ru) * 2008-05-27 2016-11-30 Уэйр Минералз Острэйлиа Лтд. Рабочее колесо центробежного насоса и его комбинация с внутренним вкладышем (варианты)
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 (da) *
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431947A1 (de) * 1993-09-25 1995-03-30 Klein Schanzlin & Becker Ag Strömungsmaschine mit verringertem abrasiven Verschleiß
US5984629A (en) * 1993-09-25 1999-11-16 Ksb Aktiengesellscaft Turbo-machine with reduced abrasive wear

Also Published As

Publication number Publication date
EP0442883A1 (de) 1991-08-28
GR3005061T3 (da) 1993-05-24
ES2032073T3 (es) 1993-01-01
JPH0646037B2 (ja) 1994-06-15
EP0346677A1 (de) 1989-12-20
WO1989012755A1 (en) 1989-12-28
JPH03501761A (ja) 1991-04-18
DE58901311D1 (de) 1992-06-11
DK171831B1 (da) 1997-06-23
ATE75818T1 (de) 1992-05-15
CA1330908C (en) 1994-07-26
US5171126A (en) 1992-12-15
DK294990A (da) 1990-12-12
DE3820062A1 (de) 1989-12-21
DK294990D0 (da) 1990-12-12

Similar Documents

Publication Publication Date Title
EP0346677B1 (de) Strömungsmaschine
DE4105042C2 (de) Abdichtungsanordnung für Propellerwellen von Schiffen
DE2028521A1 (de) Mechanische Dichtung für Pulpepumpen
EP0721546A1 (de) Strömungsmaschine mit verringertem abrasiven verschleiss
DE2639144A1 (de) Wellenhilfsdichtung
DE3202904A1 (de) Waagerechte schlamm-kreiselpumpe
DE3002585C2 (de) Kreiselgebläse-Laufrad
DE1653711A1 (de) Kreiselpumpe
DE3908372A1 (de) Dichtung zum abdichten der durchfuehrung einer drehbaren welle eines raffineurs
DE29916427U1 (de) Leckagemelder für Filterelemente einer Filterpresse
DE1131953B (de) Sandschutzglocke fuer Wanddurchfuehrungen von unter Wasser laufenden Wellen, insbesondere von Kreiselpumpen
DE19626515A1 (de) Sperrflüssigkeitsabdichtung eines ölfreien Schraubenverdichters
DE2541629A1 (de) Kreiselpumpe
CH547455A (de) Wellendichtung.
DE3327421A1 (de) Stopfbuchse
DE3908374A1 (de) Dichtung zum abdichten der durchfuehrung einer drehbaren welle eines raffineurs
EP0153452B1 (de) Axialgebläse
DE2900434A1 (de) Abwasserpumpe
DE1009964B (de) Zufuhr von Hilfsfluessigkeit beim Schleifen
DE4033011A1 (de) Zellenradschleuse
DE3341865C2 (da)
DE2003424C3 (de) Laufrad für Turbo-Radialverdichter zur Förderung staubhaltiger Gase
DD255770A1 (de) Abdichtung fuer eine spindellagerung
DE2616774A1 (de) Kreiselpumpe
DE1929829U (de) Gleitringdichtung.

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

Kind code of ref document: A1

Designated state(s): ES GR

17P Request for examination filed

Effective date: 19900525

17Q First examination report despatched

Effective date: 19910114

RBV Designated contracting states (corrected)

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

XX Miscellaneous (additional remarks)

Free format text: VERBUNDEN MIT 89906085.9/0442883 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) DURCH ENTSCHEIDUNG VOM 23.10.91.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 75818

Country of ref document: AT

Date of ref document: 19920515

Kind code of ref document: T

XX Miscellaneous (additional remarks)

Free format text: VERBUNDEN MIT 89906085.9/0442883 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) DURCH ENTSCHEIDUNG VOM 23.10.91.

REF Corresponds to:

Ref document number: 58901311

Country of ref document: DE

Date of ref document: 19920611

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2032073

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3005061

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 89109759.4

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

Ref country code: NL

Payment date: 20000424

Year of fee payment: 12

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

Ref country code: GR

Payment date: 20000426

Year of fee payment: 12

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

Ref country code: GB

Payment date: 20000427

Year of fee payment: 12

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

Ref country code: ES

Payment date: 20000511

Year of fee payment: 12

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

Ref country code: FR

Payment date: 20000515

Year of fee payment: 12

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

Ref country code: AT

Payment date: 20000518

Year of fee payment: 12

Ref country code: BE

Payment date: 20000518

Year of fee payment: 12

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

Ref country code: SE

Payment date: 20000522

Year of fee payment: 12

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

Ref country code: CH

Payment date: 20000530

Year of fee payment: 12

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: 20010530

Ref country code: GB

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

Effective date: 20010530

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

Ref country code: BE

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

Effective date: 20010531

Ref country code: GR

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

Effective date: 20010531

Ref country code: SE

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

Effective date: 20010531

Ref country code: ES

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

Effective date: 20010531

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

Ref country code: CH

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

Effective date: 20010629

Ref country code: LI

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

Effective date: 20010629

BERE Be: lapsed

Owner name: KSB A.G.

Effective date: 20010531

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

Ref country code: NL

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

Effective date: 20011201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010530

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: 20020131

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20011201

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030303

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

Ref country code: DE

Payment date: 20080506

Year of fee payment: 20

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

Ref country code: IT

Payment date: 20080520

Year of fee payment: 20