EP2535589A3 - Cutting assembly pump - Google Patents
Cutting assembly pump Download PDFInfo
- Publication number
- EP2535589A3 EP2535589A3 EP12168833.7A EP12168833A EP2535589A3 EP 2535589 A3 EP2535589 A3 EP 2535589A3 EP 12168833 A EP12168833 A EP 12168833A EP 2535589 A3 EP2535589 A3 EP 2535589A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- cutting assembly
- assembly pump
- pump
- cutting surface
- 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.)
- Granted
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
- B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
-
- 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
- F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Food Science & Technology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Die Erfindung betrifft eine Kreiselpumpe mit einem Pumpenläufer (2), der in einem Gehäuse (1) angeordnet ist. Vor dem Zustrom des Mediums in ein Laufrad (3) ist mindestens ein Schneidwerk (7) angeordnet. Das Schneidwerk (7) weist eine Schneidfläche (8) und einen rotierenden Schneidkörper (9) auf. Durch Öffnungen (10) in der Schneidfläche (8) strömt das Medium. Die Schneidfläche (8) und der Schneidkörper (9) sind mit einer Anpresskraft (F) gegeneinander verspannt. Erfindungsgemäß wird die Anpresskraft (F) aufgrund der Rotation des Pumpenläufers (2) erzeugt. The invention relates to a centrifugal pump with a pump rotor (2), which is arranged in a housing (1). Before the inflow of the medium into an impeller (3) at least one cutting unit (7) is arranged. The cutting unit (7) has a cutting surface (8) and a rotating cutting body (9). Through openings (10) in the cutting surface (8), the medium flows. The cutting surface (8) and the cutting body (9) are braced against each other with a contact force (F). According to the invention, the contact pressure (F) is generated due to the rotation of the pump rotor (2).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011077544A DE102011077544A1 (en) | 2011-06-15 | 2011-06-15 | Grinder pump |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2535589A2 EP2535589A2 (en) | 2012-12-19 |
EP2535589A3 true EP2535589A3 (en) | 2018-03-21 |
EP2535589B1 EP2535589B1 (en) | 2019-09-11 |
Family
ID=46168176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12168833.7A Active EP2535589B1 (en) | 2011-06-15 | 2012-05-22 | Cutting assembly pump |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2535589B1 (en) |
CN (1) | CN102913473B (en) |
DE (1) | DE102011077544A1 (en) |
DK (1) | DK2535589T3 (en) |
HU (1) | HUE046949T2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9475059B2 (en) | 2013-03-15 | 2016-10-25 | Pentair Flow Technologies, Llc | Cutting blade assembly |
SE539558C2 (en) * | 2013-08-15 | 2017-10-10 | Xylem Ip Man S À R L | Pump for pumping fluid and impeller assembly |
EP3449130B1 (en) | 2016-04-26 | 2022-11-09 | Pentair Flow Technologies, LLC | Cutting assembly for a chopper pump |
CN106907327B (en) * | 2017-04-26 | 2019-06-25 | 佛山市肯富来工业泵有限公司 | The method of dredge pump anti-block system and control unit the control cutting part of pumping plant |
US11161121B2 (en) | 2019-05-10 | 2021-11-02 | Jung Pumpen Gmbh | Cutting blade assembly |
CH717149B1 (en) * | 2020-02-19 | 2023-05-15 | Mai Joel | cutting pump. |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4143993A (en) * | 1976-03-26 | 1979-03-13 | Albert Blum | Suction pump with rotatable flow retaining and repelling element |
DE2918228A1 (en) * | 1979-05-05 | 1980-11-13 | Dieter Reusch | Fibrous material disintegration equipment - has cutter bodies in shaft pockets held by centrifugal force against cylinder wall |
CA2030881A1 (en) * | 1989-12-27 | 1991-06-28 | Brian M. Mitsch | Sewage pump with self-adjusting cutters |
WO2007067532A2 (en) * | 2005-12-05 | 2007-06-14 | Little Giant Pump Company | Grinder pump with self aligning cutter assembly |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3786996A (en) | 1972-03-20 | 1974-01-22 | Tec Group | Axial flow unit |
US3961758A (en) | 1974-08-23 | 1976-06-08 | Peabody Barnes, Inc. | Centrifugal pump with integral grinder |
US4569638A (en) * | 1982-11-30 | 1986-02-11 | International Telephone And Telegraph Corporation | Pump with resiliently mounted impeller |
DE19643729A1 (en) | 1996-10-23 | 1998-04-30 | Sebastian Zunhammer | Delivery of inhomogeneous fluids, especially manure |
DE29910596U1 (en) * | 1999-06-17 | 1999-09-09 | Hugo Vogelsang Maschinenbau Gm | Device for crushing solids in inhomogeneous liquids |
DE20115516U1 (en) * | 2001-09-20 | 2001-11-29 | Grundfos As | Centrifugal pump |
CN1839265A (en) * | 2003-07-22 | 2006-09-27 | 环境技术泵设备公司 | Apparatus for axial adjustment of chopper pump clearances |
US7159806B1 (en) * | 2005-01-18 | 2007-01-09 | Ritsema Stephen T | Cutter assembly for a grinder pump |
DE202006014804U1 (en) * | 2006-05-09 | 2007-09-13 | Hugo Vogelsang Maschinenbau Gmbh | Prestressing device for cutter rotor, has prestressing part coaxially arranged within cutter drive shaft such that cutter drive shaft and prestressing part are connected with each other by clamping nut |
DE202009003995U1 (en) | 2009-03-25 | 2010-08-19 | Hugo Vogelsang Maschinenbau Gmbh | cutter |
CN201714707U (en) * | 2010-06-03 | 2011-01-19 | 上海爱澜达水处理科技有限公司 | Water pump and cutting device for same |
-
2011
- 2011-06-15 DE DE102011077544A patent/DE102011077544A1/en not_active Withdrawn
-
2012
- 2012-05-22 EP EP12168833.7A patent/EP2535589B1/en active Active
- 2012-05-22 HU HUE12168833A patent/HUE046949T2/en unknown
- 2012-05-22 DK DK12168833.7T patent/DK2535589T3/en active
- 2012-06-15 CN CN201210198081.1A patent/CN102913473B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4143993A (en) * | 1976-03-26 | 1979-03-13 | Albert Blum | Suction pump with rotatable flow retaining and repelling element |
DE2918228A1 (en) * | 1979-05-05 | 1980-11-13 | Dieter Reusch | Fibrous material disintegration equipment - has cutter bodies in shaft pockets held by centrifugal force against cylinder wall |
CA2030881A1 (en) * | 1989-12-27 | 1991-06-28 | Brian M. Mitsch | Sewage pump with self-adjusting cutters |
WO2007067532A2 (en) * | 2005-12-05 | 2007-06-14 | Little Giant Pump Company | Grinder pump with self aligning cutter assembly |
Also Published As
Publication number | Publication date |
---|---|
EP2535589A2 (en) | 2012-12-19 |
EP2535589B1 (en) | 2019-09-11 |
DK2535589T3 (en) | 2019-12-16 |
CN102913473A (en) | 2013-02-06 |
CN102913473B (en) | 2016-02-10 |
DE102011077544A1 (en) | 2012-12-20 |
HUE046949T2 (en) | 2020-03-30 |
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