EP0346677B1 - Strömungsmaschine - Google Patents
Strömungsmaschine Download PDFInfo
- 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
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)
- Hydraulic Turbines (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Centrifugal Separators (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Cyclones (AREA)
- Paper (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
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 |
---|---|---|---|
DE3820062 | 1988-06-13 | ||
DE3820062A DE3820062A1 (de) | 1988-06-13 | 1988-06-13 | Stroemungsmaschine |
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 |
---|---|---|---|
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 After (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) | EP0346677B1 (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)
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)
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 |
ES2835028T3 (es) * | 2008-05-27 | 2021-06-21 | Weir Minerals Australia Ltd | Mejoras relacionadas con impulsores de bombas centrífugas |
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)
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 |
-
1988
- 1988-06-13 DE DE3820062A patent/DE3820062A1/de not_active Ceased
-
1989
- 1989-05-30 WO PCT/EP1989/000604 patent/WO1989012755A1/de not_active Application Discontinuation
- 1989-05-30 EP EP89109759A patent/EP0346677B1/de not_active Expired - Lifetime
- 1989-05-30 JP JP1505517A patent/JPH0646037B2/ja not_active Expired - Lifetime
- 1989-05-30 DE DE8989109759T patent/DE58901311D1/de not_active Expired - Lifetime
- 1989-05-30 US US07/634,165 patent/US5171126A/en not_active Expired - Fee Related
- 1989-05-30 AT AT89109759T patent/ATE75818T1/de not_active IP Right Cessation
- 1989-05-30 ES ES198989109759T patent/ES2032073T3/es not_active Expired - Lifetime
- 1989-05-30 EP EP89906085A patent/EP0442883A1/de active Pending
- 1989-06-13 CA CA000602640A patent/CA1330908C/en not_active Expired - Fee Related
-
1990
- 1990-12-12 DK DK294990A patent/DK171831B1/da not_active IP Right Cessation
-
1992
- 1992-06-30 GR GR920401393T patent/GR3005061T3/el unknown
Cited By (2)
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 |
---|---|
ATE75818T1 (de) | 1992-05-15 |
DE58901311D1 (de) | 1992-06-11 |
DK294990A (da) | 1990-12-12 |
DK294990D0 (da) | 1990-12-12 |
DE3820062A1 (de) | 1989-12-21 |
CA1330908C (en) | 1994-07-26 |
EP0346677A1 (de) | 1989-12-20 |
JPH0646037B2 (ja) | 1994-06-15 |
US5171126A (en) | 1992-12-15 |
DK171831B1 (da) | 1997-06-23 |
GR3005061T3 (da) | 1993-05-24 |
ES2032073T3 (es) | 1993-01-01 |
WO1989012755A1 (en) | 1989-12-28 |
JPH03501761A (ja) | 1991-04-18 |
EP0442883A1 (de) | 1991-08-28 |
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