GB1412488A - Pump for pumping liquids containing ce-lulose or other fibre suspensions - Google Patents
Pump for pumping liquids containing ce-lulose or other fibre suspensionsInfo
- Publication number
- GB1412488A GB1412488A GB835873A GB835873A GB1412488A GB 1412488 A GB1412488 A GB 1412488A GB 835873 A GB835873 A GB 835873A GB 835873 A GB835873 A GB 835873A GB 1412488 A GB1412488 A GB 1412488A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impeller
- degrees
- fibres
- inlet
- vane
- 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
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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2272—Rotors specially for centrifugal pumps with special measures for influencing flow or boundary layer
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Secondary Cells (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
1412488 Centrifugal pumps JONKOPINGS MEKANISKA WERKSTADS AB 20 Feb 1973 [21 Feb 1972] 8358/73 Heading F1C In a pump for liquids containing cellulose or other fibre suspensions and having at least one impeller through which the whole of the liquid to be pumped is passed, the inlet edge of each impeller vane 1 is contained substantially in a plane perpendicular to the impeller axis, and the inlet angle of each vane is at least 50 degrees. The inlet angle may be as large as 120 degrees but is preferably between 70 degrees and 110 degrees. As shown in Fig. 4, the inlet angle is preferably substantially 90 degrees. The use of a large inlet angle causes increased turbulence 11, which serves to carry away pulp fibres tending to lodge on the inlet edge 10 of the vane. To assist further in dislodging fibres, the inlet edge 10 is as shown bulbously thickened on that side which faces in the direction of rotation of the impeller. Vanes 15 on the back of the impeller reduce the axial thrust on the impeller and also oppose the tendency of fibres to penetrate into the gap 17 between the impeller and the core plate 16. To ward off any fibres which do penetrate the gap, the gap is made wider at the radially outer end than nearer the pump shaft 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE02059/72A SE362689B (en) | 1972-02-21 | 1972-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1412488A true GB1412488A (en) | 1975-11-05 |
Family
ID=20259306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB835873A Expired GB1412488A (en) | 1972-02-21 | 1973-02-20 | Pump for pumping liquids containing ce-lulose or other fibre suspensions |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE2307714A1 (en) |
| FI (1) | FI72376C (en) |
| GB (1) | GB1412488A (en) |
| PL (1) | PL82428B1 (en) |
| SE (1) | SE362689B (en) |
| SU (1) | SU650518A3 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3704361A1 (en) * | 1987-02-12 | 1988-08-25 | Klein Schanzlin & Becker Ag | Centrifugal pump for conveying solids-containing liquids |
| GB2219753A (en) * | 1988-06-15 | 1989-12-20 | Sarlin Ab Oy E | Propeller for a mixer |
| GB2293630A (en) * | 1994-09-30 | 1996-04-03 | Klein Schanzlin & Becker Ag | Centrifugal pump impeller for dirty liquids |
| CN101201055B (en) * | 2006-09-18 | 2012-06-13 | Ihc荷兰Ie公司 | Centrifugal pump, and use thereof |
| US20140079558A1 (en) * | 2012-09-20 | 2014-03-20 | Sulzer Pumpen Ag | Impeller for a centrifugal pump |
| WO2016032327A1 (en) | 2014-08-26 | 2016-03-03 | Ihc Holland Ie B.V. | Impeller blade with asymmetric thickness |
| US20190120242A1 (en) * | 2016-04-06 | 2019-04-25 | Flsmidth A/S | Low inlet vorticity impeller having enhanced hydrodynamic wear characteristics |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4842479A (en) * | 1981-01-29 | 1989-06-27 | Vaughan Co., Inc. | High head centrifugal slicing slurry pump |
| US4681508A (en) * | 1984-11-14 | 1987-07-21 | Kim Choong W | Supercavitation centrifugal pump |
| DE3608229A1 (en) * | 1986-03-12 | 1987-09-17 | Klein Schanzlin & Becker Ag | BLADE FOR AN AXIAL CENTRIFUGAL PUMP |
| US4820115A (en) * | 1987-11-12 | 1989-04-11 | Dresser Industries, Inc. | Open impeller for centrifugal compressors |
-
1972
- 1972-02-21 SE SE02059/72A patent/SE362689B/xx unknown
-
1973
- 1973-02-15 FI FI730456A patent/FI72376C/en active
- 1973-02-16 DE DE19732307714 patent/DE2307714A1/en active Pending
- 1973-02-20 SU SU731884026A patent/SU650518A3/en active
- 1973-02-20 PL PL1973160831A patent/PL82428B1/pl unknown
- 1973-02-20 GB GB835873A patent/GB1412488A/en not_active Expired
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3704361A1 (en) * | 1987-02-12 | 1988-08-25 | Klein Schanzlin & Becker Ag | Centrifugal pump for conveying solids-containing liquids |
| GB2219753A (en) * | 1988-06-15 | 1989-12-20 | Sarlin Ab Oy E | Propeller for a mixer |
| GB2219753B (en) * | 1988-06-15 | 1991-11-06 | Sarlin Ab Oy E | Propeller for a mixer |
| GB2293630A (en) * | 1994-09-30 | 1996-04-03 | Klein Schanzlin & Becker Ag | Centrifugal pump impeller for dirty liquids |
| GB2293630B (en) * | 1994-09-30 | 1998-11-04 | Klein Schanzlin & Becker Ag | Centrifugal pump impeller for dirty liquids |
| CN101201055B (en) * | 2006-09-18 | 2012-06-13 | Ihc荷兰Ie公司 | Centrifugal pump, and use thereof |
| EP2711557A2 (en) | 2012-09-20 | 2014-03-26 | Sulzer Pumpen Ag | An impeller for a centrifugal pump |
| CN103671233A (en) * | 2012-09-20 | 2014-03-26 | 苏舍泵有限公司 | An impeller for a centrifugal pump |
| US20140079558A1 (en) * | 2012-09-20 | 2014-03-20 | Sulzer Pumpen Ag | Impeller for a centrifugal pump |
| RU2635739C2 (en) * | 2012-09-20 | 2017-11-15 | Зульцер Мэнэджмент Аг | Working wheel for centrifugal pump |
| CN103671233B (en) * | 2012-09-20 | 2017-12-01 | 苏尔寿管理有限公司 | Impeller for centrifugal pump |
| US10094222B2 (en) * | 2012-09-20 | 2018-10-09 | Sulzer Management Ag | Impeller for a centrifugal pump |
| WO2016032327A1 (en) | 2014-08-26 | 2016-03-03 | Ihc Holland Ie B.V. | Impeller blade with asymmetric thickness |
| NL2013367B1 (en) * | 2014-08-26 | 2016-09-26 | Ihc Holland Ie Bv | Impeller blade with asymmetric thickness. |
| CN106795892A (en) * | 2014-08-26 | 2017-05-31 | Ihc荷兰Ie有限公司 | Impeller blade with asymmetric thickness |
| AU2015307309B2 (en) * | 2014-08-26 | 2019-03-07 | Ihc Holland Ie B.V. | Impeller blade with asymmetric thickness |
| US20190120242A1 (en) * | 2016-04-06 | 2019-04-25 | Flsmidth A/S | Low inlet vorticity impeller having enhanced hydrodynamic wear characteristics |
| US10648480B2 (en) * | 2016-04-06 | 2020-05-12 | Flsmidth A/S | Low inlet vorticity impeller having enhanced hydrodynamic wear characteristics |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2307714A1 (en) | 1973-08-30 |
| FI72376B (en) | 1987-01-30 |
| SE362689B (en) | 1973-12-17 |
| FI72376C (en) | 1988-03-22 |
| PL82428B1 (en) | 1975-10-31 |
| SU650518A3 (en) | 1979-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |