WO2004065796A1 - Freistrompumpe - Google Patents
Freistrompumpe Download PDFInfo
- Publication number
- WO2004065796A1 WO2004065796A1 PCT/EP2003/014107 EP0314107W WO2004065796A1 WO 2004065796 A1 WO2004065796 A1 WO 2004065796A1 EP 0314107 W EP0314107 W EP 0314107W WO 2004065796 A1 WO2004065796 A1 WO 2004065796A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- impeller
- housing
- suction
- free
- flow pump
- Prior art date
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
- F04D29/2238—Special flow patterns
- F04D29/2244—Free vortex
-
- 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
- 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 free-flow pump for conveying liquids mixed with solid admixtures, with a housing in which on the one hand an impeller which is not covered on its outer diameter is arranged and in which on the other hand an open space is formed between the impeller and the suction-side housing wall, the radial housing space located to the impeller, seen in the meridian section, is asymmetrical, and the distance of the suction-side housing wall to the impeller decreases with the diameter, but there is such a distance over the entire circumference between the impeller and the suction-side housing wall that there is one contained in the conveying liquid solid object that corresponds in its greatest extent to the diameter of a given sphere that the free-flow pump can pass.
- the invention is based, to achieve an efficiency-increasing reduction in size of the pump chamber without having to accept significant undesirable side effects.
- the transition of the suction-side housing wall to the wall of the housing space located radially to the impeller is infinitely variable, this housing space, seen in the meridian section, being asymmetrical in such a way that the cross-sections lie radially to the contour of the impeller Areas are larger than the cross sections of the areas located in front of it on the suction side, and the cross sections of the areas located radially to the contour of the impeller in the direction of the outlet of the
- the design according to the invention allows the pump space to be optimized in such a way that the suction-side housing wall and part of the housing space located radially to the impeller are moved to a minimum distance from the impeller.
- the passage to be kept clear for the passage of the imaginary ball is formed in the housing space which is present radially to the contour of the impeller.
- the invention can be used with particular advantage in free-flow pumps with an at least partially spiral-shaped housing, but, in contrast to the pump described above, can also be used in ring housings.
- the cross sections of the areas of the housing space located radially to the contour of the impeller are each at least partially formed as circular sections, the radius of which increases towards the outlet to a dimension which is equal to or greater than the radius of the predetermined one Bullet.
- An impeller 2 is fastened on a shaft 3 in the housing 1 of the free-flow pump.
- the housing 1 is a spiral housing.
- a wheel body 4, in which a screw 5 engages, serves to fasten the impeller 2.
- a plurality of blades 7 are arranged on the support disk 6 of the impeller 2. One on the suction side in the housing
- cover 8 forms an inlet 9.
- the housing wall 10 of the cover 8 runs conically in such a way that the distance between the housing wall 10 and the impeller 2 decreases with the diameter.
- the spiral space of the housing 1, as seen in the meridian section, is designed asymmetrically. 1 shows this. This asymmetry is such that the cross-sectional areas of the housing 1 located radially to the contour of the impeller 2 are each larger than the corresponding cross-sectional areas of the areas in front of them on the suction side. This is also due to the curvature that is radial to the impeller
- the transition from the housing wall 10 formed by the cover 8 to the housing wall 11 of the spiral is stepless. 2 shows the course of the spiral formed by the housing 1 and enclosing the impeller 2.
- a solid object entering the housing 1 of the free-flow pump with the flow via the inlet 9 is initially held in suspension by the circulation flow of the impeller 2, but in this case by the one in the housing 1 prevailing absolute flow promoted towards the outlet 12. Due to the design of the housing wall 10, there is a free passage in front of the outlet 12, the minimum extent of which corresponds to the size of a predetermined ball. The object moved by the flow can leave the free-flow pump via this passage and the outlet 12.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003290021A AU2003290021A1 (en) | 2003-01-17 | 2003-12-12 | Non-chokable pump |
EP03782375.4A EP1583910B1 (de) | 2003-01-17 | 2003-12-12 | Freistrompumpe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10301629.5 | 2003-01-17 | ||
DE10301629A DE10301629B4 (de) | 2003-01-17 | 2003-01-17 | Freistrompumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004065796A1 true WO2004065796A1 (de) | 2004-08-05 |
WO2004065796A8 WO2004065796A8 (de) | 2005-08-04 |
Family
ID=32602655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/014107 WO2004065796A1 (de) | 2003-01-17 | 2003-12-12 | Freistrompumpe |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1583910B1 (de) |
AR (1) | AR042892A1 (de) |
AU (1) | AU2003290021A1 (de) |
DE (1) | DE10301629B4 (de) |
WO (1) | WO2004065796A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2226505A1 (de) * | 2009-03-03 | 2010-09-08 | KSB Aktiengesellschaft | Freistromrad mit Schneidkanten |
EP2497956A1 (de) * | 2011-03-08 | 2012-09-12 | Egger Pumps Technology AG | Freistrompumpe |
DE102015212203A1 (de) | 2015-06-30 | 2017-01-05 | Ksb Aktiengesellschaft | Freistrompumpe |
DE102016225891A1 (de) | 2016-12-21 | 2018-06-21 | KSB SE & Co. KGaA | Freistrompumpe |
DE102020003847A1 (de) | 2020-06-26 | 2021-12-30 | KSB SE & Co. KGaA | Kreiselpumpe zur Förderung feststoffhaltiger Medien |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016225908A1 (de) | 2016-12-21 | 2018-06-21 | KSB SE & Co. KGaA | Freistrompumpe |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2570862A (en) | 1949-10-29 | 1951-10-09 | Gen Electric | Fluid pump with direction responsive impeller blades |
GB840671A (en) * | 1957-03-26 | 1960-07-06 | Abrasive Dev | Improvements relating to centrifugal pumps |
US3044408A (en) * | 1961-01-06 | 1962-07-17 | James A Dingus | Rotary pump |
GB1255948A (en) * | 1968-07-19 | 1971-12-01 | Unitec Sa | Pump with impeller withdrawn relatively to its hydraulic delivery circuit |
DE2215021A1 (de) * | 1972-03-28 | 1973-10-11 | Eta Corp | Kreiselpumpe |
US4676718A (en) | 1984-08-16 | 1987-06-30 | Oy E. Sarlin Ab | Impeller for a pump, especially a vortex pump |
US4776753A (en) * | 1986-10-28 | 1988-10-11 | Eddy Pump Corporation | Method of and apparatus for pumping viscous fluids |
EP0599204A1 (de) * | 1992-11-20 | 1994-06-01 | Grundfos A/S | Tauchpumpenaggregat |
EP0649987B1 (de) | 1993-10-22 | 1997-12-10 | Itt Flygt Ab | Gehäuse für eine Rotationspumpe |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4076179A (en) * | 1976-04-22 | 1978-02-28 | Kabushiki Kaisha Sogo Pump Seisakusho | Centrifugal sewage pump |
JP3310500B2 (ja) * | 1995-07-20 | 2002-08-05 | 株式会社荏原製作所 | 水中ポンプ |
-
2003
- 2003-01-17 DE DE10301629A patent/DE10301629B4/de not_active Expired - Fee Related
- 2003-12-12 AU AU2003290021A patent/AU2003290021A1/en not_active Abandoned
- 2003-12-12 WO PCT/EP2003/014107 patent/WO2004065796A1/de active Search and Examination
- 2003-12-12 EP EP03782375.4A patent/EP1583910B1/de not_active Expired - Lifetime
-
2004
- 2004-01-16 AR ARP040100112A patent/AR042892A1/es active IP Right Grant
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2570862A (en) | 1949-10-29 | 1951-10-09 | Gen Electric | Fluid pump with direction responsive impeller blades |
GB840671A (en) * | 1957-03-26 | 1960-07-06 | Abrasive Dev | Improvements relating to centrifugal pumps |
US3044408A (en) * | 1961-01-06 | 1962-07-17 | James A Dingus | Rotary pump |
GB1255948A (en) * | 1968-07-19 | 1971-12-01 | Unitec Sa | Pump with impeller withdrawn relatively to its hydraulic delivery circuit |
DE2215021A1 (de) * | 1972-03-28 | 1973-10-11 | Eta Corp | Kreiselpumpe |
US4676718A (en) | 1984-08-16 | 1987-06-30 | Oy E. Sarlin Ab | Impeller for a pump, especially a vortex pump |
US4776753A (en) * | 1986-10-28 | 1988-10-11 | Eddy Pump Corporation | Method of and apparatus for pumping viscous fluids |
EP0599204A1 (de) * | 1992-11-20 | 1994-06-01 | Grundfos A/S | Tauchpumpenaggregat |
EP0649987B1 (de) | 1993-10-22 | 1997-12-10 | Itt Flygt Ab | Gehäuse für eine Rotationspumpe |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2226505A1 (de) * | 2009-03-03 | 2010-09-08 | KSB Aktiengesellschaft | Freistromrad mit Schneidkanten |
US9605678B2 (en) | 2011-03-08 | 2017-03-28 | Egger Pumps Technology Ag | Free-flow pump |
WO2012119877A3 (en) * | 2011-03-08 | 2013-05-23 | Egger Pumps Technology Ag | Free-flow pump |
CN103477083A (zh) * | 2011-03-08 | 2013-12-25 | 埃格泵技术股份公司 | 自流泵 |
JP2014507600A (ja) * | 2011-03-08 | 2014-03-27 | エッガー ポンプス テクノロジー エージー | 自由流れポンプ |
EP2497956A1 (de) * | 2011-03-08 | 2012-09-12 | Egger Pumps Technology AG | Freistrompumpe |
DE102015212203A1 (de) | 2015-06-30 | 2017-01-05 | Ksb Aktiengesellschaft | Freistrompumpe |
US10738792B2 (en) | 2015-06-30 | 2020-08-11 | Ksb Aktiengesellschaft | Vortex pump |
DE102016225891A1 (de) | 2016-12-21 | 2018-06-21 | KSB SE & Co. KGaA | Freistrompumpe |
WO2018114143A1 (de) | 2016-12-21 | 2018-06-28 | KSB SE & Co. KGaA | Freistrompumpe |
US11187232B2 (en) | 2016-12-21 | 2021-11-30 | KSB SE & Co. KGaA | Vortex pump |
DE102020003847A1 (de) | 2020-06-26 | 2021-12-30 | KSB SE & Co. KGaA | Kreiselpumpe zur Förderung feststoffhaltiger Medien |
WO2021259658A1 (de) | 2020-06-26 | 2021-12-30 | KSB SE & Co. KGaA | Kreiselpumpe zur förderung feststoffhaltiger medien |
Also Published As
Publication number | Publication date |
---|---|
EP1583910B1 (de) | 2016-08-24 |
AU2003290021A1 (en) | 2004-08-13 |
WO2004065796A8 (de) | 2005-08-04 |
AR042892A1 (es) | 2005-07-06 |
EP1583910A1 (de) | 2005-10-12 |
DE10301629B4 (de) | 2013-05-29 |
DE10301629A1 (de) | 2004-07-29 |
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