EP3779201C0 - Scraper element for the leading edges of impellers of waste water pumps - Google Patents

Scraper element for the leading edges of impellers of waste water pumps

Info

Publication number
EP3779201C0
EP3779201C0 EP19191970.3A EP19191970A EP3779201C0 EP 3779201 C0 EP3779201 C0 EP 3779201C0 EP 19191970 A EP19191970 A EP 19191970A EP 3779201 C0 EP3779201 C0 EP 3779201C0
Authority
EP
European Patent Office
Prior art keywords
impellers
waste water
leading edges
water pumps
scraper element
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.)
Active
Application number
EP19191970.3A
Other languages
German (de)
French (fr)
Other versions
EP3779201B1 (en
EP3779201A1 (en
Inventor
Christoph Jäger
Mateusz Kaminski
Enrico Müller
Nicolas Petit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KSB SE and Co KGaA
Original Assignee
KSB SE and Co KGaA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to HUE19191970A priority Critical patent/HUE062508T2/en
Application filed by KSB SE and Co KGaA filed Critical KSB SE and Co KGaA
Priority to EP19191970.3A priority patent/EP3779201B1/en
Priority to CN202080057382.5A priority patent/CN114245849A/en
Priority to AU2020327570A priority patent/AU2020327570A1/en
Priority to BR112022002294A priority patent/BR112022002294A2/en
Priority to CA3149426A priority patent/CA3149426A1/en
Priority to US17/635,236 priority patent/US20220290695A1/en
Priority to PCT/EP2020/071792 priority patent/WO2021028246A1/en
Publication of EP3779201A1 publication Critical patent/EP3779201A1/en
Application granted granted Critical
Publication of EP3779201B1 publication Critical patent/EP3779201B1/en
Publication of EP3779201C0 publication Critical patent/EP3779201C0/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially 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
    • 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
    • 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
    • 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)
EP19191970.3A 2019-08-15 2019-08-15 Scraper element for the leading edges of impellers of waste water pumps Active EP3779201B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP19191970.3A EP3779201B1 (en) 2019-08-15 2019-08-15 Scraper element for the leading edges of impellers of waste water pumps
HUE19191970A HUE062508T2 (en) 2019-08-15 2019-08-15 Scraper element for the leading edges of impellers of waste water pumps
AU2020327570A AU2020327570A1 (en) 2019-08-15 2020-08-03 Wiping element for impeller leading edges of wastewater pumps
BR112022002294A BR112022002294A2 (en) 2019-08-15 2020-08-03 Wastewater pump to transport solid-laden wastewater
CN202080057382.5A CN114245849A (en) 2019-08-15 2020-08-03 Scraping element for inlet edge of impeller of sewage pump
CA3149426A CA3149426A1 (en) 2019-08-15 2020-08-03 Wiping element for impeller leading edges of wastewater pumps
US17/635,236 US20220290695A1 (en) 2019-08-15 2020-08-03 Wiping Element for Impeller Leading Edges of Wastewater Pumps
PCT/EP2020/071792 WO2021028246A1 (en) 2019-08-15 2020-08-03 Wiping element for impeller leading edges of wastewater pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19191970.3A EP3779201B1 (en) 2019-08-15 2019-08-15 Scraper element for the leading edges of impellers of waste water pumps

Publications (3)

Publication Number Publication Date
EP3779201A1 EP3779201A1 (en) 2021-02-17
EP3779201B1 EP3779201B1 (en) 2023-06-07
EP3779201C0 true EP3779201C0 (en) 2023-06-07

Family

ID=67659004

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19191970.3A Active EP3779201B1 (en) 2019-08-15 2019-08-15 Scraper element for the leading edges of impellers of waste water pumps

Country Status (8)

Country Link
US (1) US20220290695A1 (en)
EP (1) EP3779201B1 (en)
CN (1) CN114245849A (en)
AU (1) AU2020327570A1 (en)
BR (1) BR112022002294A2 (en)
CA (1) CA3149426A1 (en)
HU (1) HUE062508T2 (en)
WO (1) WO2021028246A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3988793A1 (en) * 2020-10-26 2022-04-27 Xylem Europe GmbH Impeller seat with a guide pin for a pump
EP4102080A1 (en) * 2021-06-08 2022-12-14 Xylem Europe GmbH Pump and hydraulic unit of a pump
WO2023057236A1 (en) 2021-10-04 2023-04-13 KSB SE & Co. KGaA Centrifugal pump having wear-resistant wear plate with scraper element
DE102022124356A1 (en) 2021-10-04 2023-05-25 KSB SE & Co. KGaA Centrifugal pump with wear-resistant wear plate with scraper element wear-resistant wear plate with scraper element

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3096718A (en) * 1961-12-12 1963-07-09 Conard Kenner Trash cutter for a pump
AT255912B (en) * 1964-07-01 1967-07-25 Schlesiger & Co Kg Feluwa Dirty water centrifugal pump
US4604035A (en) * 1985-01-02 1986-08-05 A. O. Smith Harvestore Products, Inc. Submersible pump having frangible drive connection
JP4326616B2 (en) * 1999-01-11 2009-09-09 株式会社鶴見製作所 Blockage prevention device for impeller inlet in vortex type centrifugal pump used in sewage filth containing fibrous and string-like foreign matters
US6190121B1 (en) * 1999-02-12 2001-02-20 Hayward Gordon Limited Centrifugal pump with solids cutting action
SE524048C2 (en) * 2002-04-26 2004-06-22 Itt Mfg Enterprises Inc Device at pump
DE102004058458B3 (en) * 2004-12-03 2006-05-18 Brinkmann Pumpen K.H. Brinkmann Gmbh & Co. Kg Pump with axial impeller e.g. for pump, has screw-shaped wings for sucking in liquid by inlet port arranged at lower surface of axial impeller with wings at lower surface have cutting edge
SE527818C2 (en) * 2005-06-17 2006-06-13 Itt Mfg Enterprises Inc Pump is for moving contaminated fluid including solid material and has pump housing, rotatable pump wheel with at least one blade and pump wheel seat containing at least one recess in its upper surface
SE0501542L (en) * 2005-07-01 2006-07-25 Itt Mfg Enterprises Inc Pump for pumping contaminated liquid including solids
SE530785C2 (en) * 2006-01-23 2008-09-09 Itt Mfg Enterprises Inc Pump for pumping contaminated liquid containing solids
EP2888484B1 (en) * 2012-08-23 2021-02-17 Sulzer Management AG Pump for transporting waste water and wheel and floor panel for same
SE539558C2 (en) * 2013-08-15 2017-10-10 Xylem Ip Man S À R L Pump for pumping fluid and impeller assembly
JP6415116B2 (en) * 2014-05-30 2018-10-31 株式会社荏原製作所 Casing liner for sewage pump and sewage pump provided with the same
US10837456B2 (en) * 2015-03-27 2020-11-17 Ebara Corporation Volute pump

Also Published As

Publication number Publication date
EP3779201B1 (en) 2023-06-07
CN114245849A (en) 2022-03-25
BR112022002294A2 (en) 2022-04-26
US20220290695A1 (en) 2022-09-15
AU2020327570A1 (en) 2022-02-17
CA3149426A1 (en) 2021-02-18
HUE062508T2 (en) 2023-11-28
WO2021028246A1 (en) 2021-02-18
EP3779201A1 (en) 2021-02-17

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