WO2005078286A1 - Schneidwerk einer kreiselpumpe - Google Patents
Schneidwerk einer kreiselpumpe Download PDFInfo
- Publication number
- WO2005078286A1 WO2005078286A1 PCT/EP2005/000150 EP2005000150W WO2005078286A1 WO 2005078286 A1 WO2005078286 A1 WO 2005078286A1 EP 2005000150 W EP2005000150 W EP 2005000150W WO 2005078286 A1 WO2005078286 A1 WO 2005078286A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cutting
- unit according
- cutting unit
- pump
- openings
- 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
- 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
- F04D7/045—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 with means for comminuting, mixing stirring or otherwise treating
Definitions
- the invention relates to a cutting unit of a centrifugal pump for liquids loaded with solids, wherein the cutter has a rotating cutting body with at least one flowed through by the liquid, forming a cutting opening and the cutting body faces with a side surface of a rotationally fixed counter surface, which also at least one of the Having liquid flowed through opening.
- the object of the invention is to improve a cutting unit of a centrifugal pump so HU that low wear occurs at high cutting performance.
- Such a cutting unit has a low wear, as the surfaces can slide past each other. This also ensures that the cutting unit and the pump will not clog and in particular elongated foreign body does not wrap around the cutting body and the impeller. For safe storage, such a cutting unit and thus provided centrifugal pump are easy to manufacture and assembly.
- FIG. 2 shows a side view of the rotating cutting body according to FIG. 1, FIG.
- FIG. 3 is a perspective view of the rotating cutting body on a smaller scale
- Fig. 5 is a perspective view of the non-rotatable body in a smaller scale.
- FIG. 6 is an axial section through the cutting unit of a second embodiment, 7 is a side view of the rotating cutting body of FIG. 6,
- FIG. 8 is a perspective view of the rotary cutting body of FIG. 7,
- Fig. 10 is a perspective view of the rotatable body of the second embodiment on a smaller scale.
- the cutting unit 1 of a centrifugal motor pump has a rotating cutting body 2, which is attached to the side of the pump impeller, which faces away from the electric motor.
- the cutting body 2 is cup-shaped and its upper edge surrounds the bush-shaped inlet opening of the impeller.
- the upper edge 3 preferably has an internal thread 4, or a press fit, with which it can be screwed or pressed onto the external thread or cylindrical receptacle of the impeller inlet opening.
- the bottom of the cutting body 2 has three inlet openings 5 which are separated from one another by webs 6, to which radial cutting edges 7 are fastened, in particular molded.
- the blades 7 thus form an angle of 120 degrees with each other.
- the inlet openings 5 are formed at an angle to the direction of rotation and thus obliquely to the axis of rotation, so that the cutting body 2 acts as an "axial impeller".
- the underside and thus the side facing away from the impeller of the cutting body 2 forms a convexly curved side surface 8, wherein the side surface is formed by a part of a spherical surface, so that the cutting body 2 forms a spherical cap or dome in the region facing away from the impeller.
- the side surface 8 are the cutting edges of the blades 7, so that they are correspondingly curved.
- the radius R of the side surface 8 is with his Side surface 8 facing away from the axis of the pump shaft at the level of the pump shaft bearing, which is adjacent to the pump impeller.
- the rotatable body 10 shown in FIGS. 4 and 5 has five sector-shaped flow openings 12 which cooperate with their edges with the cutting edges 7.
- the cross sections of the flow openings 12 are larger in the second embodiment on the side facing away from the impeller than on the side facing away from the impeller. As a result, a safe promotion puffy solids is guaranteed in particular of hygiene articles.
- the rotationally fixed body 10 is provided centrally between the flow openings 12 with a suction cap 13, similar to a rotor cap (FIGS. 6 and 7), which prevents clogging of the cutting unit even before the cutting plane.
- a suction cap 13 similar to a rotor cap (FIGS. 6 and 7)
- solids, in particular textiles are fed to the throughflow openings, instead of lying in the center between the flow openings in front of the non-rotatable body.
- the peripheral circular body 10 is mounted in an annular flange 11 which is fixed in the pump housing, in particular screwed.
- Body 10 and flange 11 may also be made in one piece.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Road Repair (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK05700789T DK1716337T3 (da) | 2004-02-16 | 2005-01-11 | Skæreværk til en centrifugalpumpe |
PL05700789T PL1716337T3 (pl) | 2004-02-16 | 2005-01-11 | Mechanizm tnący pompy wirnikowej |
US10/589,644 US7520454B2 (en) | 2004-02-16 | 2005-01-11 | Cutting tool pertaining to a centrifugal pump |
EP05700789A EP1716337B1 (de) | 2004-02-16 | 2005-01-11 | Schneidwerk einer kreiselpumpe |
DE502005000456T DE502005000456D1 (de) | 2004-02-16 | 2005-01-11 | Schneidwerk einer kreiselpumpe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004007739.8 | 2004-02-16 | ||
DE102004007739A DE102004007739A1 (de) | 2004-02-16 | 2004-02-16 | Schneidwerk einer Kreiselpumpe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005078286A1 true WO2005078286A1 (de) | 2005-08-25 |
Family
ID=34801934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/000150 WO2005078286A1 (de) | 2004-02-16 | 2005-01-11 | Schneidwerk einer kreiselpumpe |
Country Status (8)
Country | Link |
---|---|
US (1) | US7520454B2 (de) |
EP (1) | EP1716337B1 (de) |
CN (1) | CN100434718C (de) |
AT (1) | ATE356294T1 (de) |
DE (2) | DE102004007739A1 (de) |
DK (1) | DK1716337T3 (de) |
PL (1) | PL1716337T3 (de) |
WO (1) | WO2005078286A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008005245A1 (de) * | 2008-01-19 | 2009-07-23 | Wilo Ag | Befestigung des Laufrades einer Kreiselpumpe |
DE102008021767A1 (de) * | 2008-04-30 | 2009-11-05 | Ksb Aktiengesellschaft | Kreiselpumpe mit Zerkleinerungseinrichtung |
DE102009011444A1 (de) * | 2009-03-03 | 2010-09-09 | Ksb Aktiengesellschaft | Freistromrad mit Schneidkanten |
US8562287B2 (en) * | 2009-06-23 | 2013-10-22 | Zoeller Pump Company, Llc | Grinder pump |
CN102434483B (zh) * | 2011-12-14 | 2015-03-18 | 浙江明江环保科技有限公司 | 切碎式排污泵 |
US9261095B2 (en) * | 2012-08-31 | 2016-02-16 | Cornell Pump Company | Cutter system for pump suction |
US9255576B2 (en) * | 2012-08-31 | 2016-02-09 | Cornell Pump Company | Cutter apparatus for centrifugal pump |
CN102828986B (zh) * | 2012-09-20 | 2015-11-18 | 台州豪贝泵业有限公司 | 不锈钢切割潜水泵的切割组件 |
US9475059B2 (en) | 2013-03-15 | 2016-10-25 | Pentair Flow Technologies, Llc | Cutting blade assembly |
CN103557154B (zh) * | 2013-11-21 | 2016-04-13 | 重庆宏美科技有限公司 | 一种水泵机 |
US10533557B2 (en) | 2016-04-26 | 2020-01-14 | Pentair Flow Technologies, Llc | Cutting assembly for a chopper pump |
US10779980B2 (en) | 2016-04-27 | 2020-09-22 | Synerz Medical, Inc. | Intragastric device for treating obesity |
CN105926698B (zh) * | 2016-07-04 | 2018-01-05 | 中交天津航道局有限公司 | 水力式挖泥船叶轮叶片内径切割增大球面通道的方法 |
US10473103B2 (en) * | 2017-03-13 | 2019-11-12 | Vaughan Company, Inc. | Chopper pump with double-edged cutting bars |
US11365738B2 (en) | 2019-04-09 | 2022-06-21 | Zoeller Pump Company, Llc | Reversing grinder pump |
US11161121B2 (en) | 2019-05-10 | 2021-11-02 | Jung Pumpen Gmbh | Cutting blade assembly |
KR102232682B1 (ko) * | 2020-07-20 | 2021-03-29 | 엔에스하이드로(주) | 하수이송용 축류펌프 또는 사류펌프 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE934142C (de) * | 1943-01-22 | 1955-10-13 | Sulzer Ag | Kreiselpumpe mit Zerkleinerungsvorrichtung |
GB1060431A (en) * | 1963-01-28 | 1967-03-01 | Eisele Soehne Franz | Improvements in and relating to cutter mechanisms for liquid manure pumps |
DE4438841C1 (de) * | 1994-11-02 | 1996-02-08 | Orpu Gmbh | Pumpe mit einer Schneideinrichtung |
EP1161630B1 (de) * | 1999-03-16 | 2003-02-12 | Werner Arnswald | Zerkleinerungspumpe |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2699295A (en) * | 1952-11-12 | 1955-01-11 | Ross L Page | Force feed mercury column amalgamator and grinder apparatus |
DE1528853A1 (de) * | 1962-10-12 | 1969-12-04 | Schade Geb Feissel Hertha | Kreiselpumpe fuer verunreinigte Fluessigkeiten mit Zerkleinerungseinrichtung |
US3961758A (en) * | 1974-08-23 | 1976-06-08 | Peabody Barnes, Inc. | Centrifugal pump with integral grinder |
CN2195636Y (zh) * | 1994-04-27 | 1995-04-26 | 四川省南充市农业机械科学研究所 | 泵用无堵塞器 |
DE59703018D1 (de) * | 1997-10-25 | 2001-03-29 | Orpu Gmbh | Pumpe mit einer Schneideinrichtung |
CN2388377Y (zh) * | 1999-08-06 | 2000-07-19 | 山东青州市南张石油机械厂 | 一种剪切泵预剪切装置 |
FR2812312B1 (fr) * | 2000-07-25 | 2003-01-24 | Sert | Broyeur sanitaire |
-
2004
- 2004-02-16 DE DE102004007739A patent/DE102004007739A1/de not_active Withdrawn
-
2005
- 2005-01-11 WO PCT/EP2005/000150 patent/WO2005078286A1/de active IP Right Grant
- 2005-01-11 AT AT05700789T patent/ATE356294T1/de not_active IP Right Cessation
- 2005-01-11 CN CNB2005800051233A patent/CN100434718C/zh active Active
- 2005-01-11 EP EP05700789A patent/EP1716337B1/de active Active
- 2005-01-11 US US10/589,644 patent/US7520454B2/en not_active Expired - Fee Related
- 2005-01-11 PL PL05700789T patent/PL1716337T3/pl unknown
- 2005-01-11 DK DK05700789T patent/DK1716337T3/da active
- 2005-01-11 DE DE502005000456T patent/DE502005000456D1/de active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE934142C (de) * | 1943-01-22 | 1955-10-13 | Sulzer Ag | Kreiselpumpe mit Zerkleinerungsvorrichtung |
GB1060431A (en) * | 1963-01-28 | 1967-03-01 | Eisele Soehne Franz | Improvements in and relating to cutter mechanisms for liquid manure pumps |
DE4438841C1 (de) * | 1994-11-02 | 1996-02-08 | Orpu Gmbh | Pumpe mit einer Schneideinrichtung |
EP1161630B1 (de) * | 1999-03-16 | 2003-02-12 | Werner Arnswald | Zerkleinerungspumpe |
Also Published As
Publication number | Publication date |
---|---|
DE502005000456D1 (de) | 2007-04-19 |
CN100434718C (zh) | 2008-11-19 |
DK1716337T3 (da) | 2007-07-02 |
DE102004007739A1 (de) | 2005-08-25 |
ATE356294T1 (de) | 2007-03-15 |
US20070164136A1 (en) | 2007-07-19 |
US7520454B2 (en) | 2009-04-21 |
EP1716337A1 (de) | 2006-11-02 |
PL1716337T3 (pl) | 2007-07-31 |
EP1716337B1 (de) | 2007-03-07 |
CN1922403A (zh) | 2007-02-28 |
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