AT526707A5 - Centrifugal pump, centrifugal pump device and fire engine - Google Patents

Centrifugal pump, centrifugal pump device and fire engine Download PDF

Info

Publication number
AT526707A5
AT526707A5 ATA9258/2022A AT92582022A AT526707A5 AT 526707 A5 AT526707 A5 AT 526707A5 AT 92582022 A AT92582022 A AT 92582022A AT 526707 A5 AT526707 A5 AT 526707A5
Authority
AT
Austria
Prior art keywords
centrifugal impeller
centrifugal pump
centrifugal
curved
swirls
Prior art date
Application number
ATA9258/2022A
Other languages
German (de)
Inventor
Kawahara Takuma
Miyagawa Kazuyoshi
Original Assignee
Morita Corp
Univ Waseda
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
Application filed by Morita Corp, Univ Waseda filed Critical Morita Corp
Publication of AT526707A5 publication Critical patent/AT526707A5/en

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
    • F04D29/2277—Rotors specially for centrifugal pumps with special measures for increasing NPSH or dealing with liquids near boiling-point
    • 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
    • F04D29/24—Vanes
    • 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
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers

Abstract

Eine Kreiselpumpe 1A, 1B umfasst: ein Zentrifugalschaufelrad 10; ein Einlassgehäuse 20A, 20B, das mit einer Ansaugöffnung des Zentrifugalschaufelrads 10 verbunden ist; ein Auslassgehäuse 30A, 30B, das mit einer Auslassöffnung des Zentrifugalschaufelrads 10 verbunden ist; einen gekrümmten Diffusor 50, der zwischen dem Zentrifugalschaufelrad 10 und dem Auslassgehäuse 30A, 30B vorgesehen ist und der eine Leitschaufel 51 aufweist; und einen Verwirbelungsteil 23A, 23B, der eine Flüssigkeit verwirbelt, die in das Zentrifugalschaufelrad 10 einströmt, wobei der gekrümmte Diffusor 50 von der radialen Richtung des Zentrifugalschaufelrads 10 zu der axialen Richtung gekrümmt ist und eine Strömungswegfläche aufweist, die stromabwärts weiter allmählich abnimmt, und der Verwirbelungsteil 23A, 23B die Flüssigkeit in der gleichen Richtung verwirbelt wie die Drehrichtung des Zentrifugalschaufelrads 10. Somit ist die Kreiselpumpe 1A, 1B hocheffizient, weist eine ausgezeichnete Ansaugleistung auf und ermöglicht eine Verringerung der Größe.A centrifugal pump 1A, 1B comprises: a centrifugal impeller 10; an inlet casing 20A, 20B connected to a suction port of the centrifugal impeller 10; an outlet casing 30A, 30B connected to an outlet port of the centrifugal impeller 10; a curved diffuser 50 provided between the centrifugal impeller 10 and the outlet casing 30A, 30B and having a guide vane 51; and a swirling part 23A, 23B that swirls a liquid flowing into the centrifugal impeller 10, wherein the curved diffuser 50 is curved from the radial direction of the centrifugal impeller 10 to the axial direction and has a flow path area that further gradually decreases downstream, and the swirling part 23A, 23B swirls the liquid in the same direction as the rotation direction of the centrifugal impeller 10. Thus, the centrifugal pump 1A, 1B is highly efficient, has excellent suction performance, and enables size reduction.

ATA9258/2022A 2021-11-29 2022-11-11 Centrifugal pump, centrifugal pump device and fire engine AT526707A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021193366 2021-11-29
PCT/JP2022/042022 WO2023095638A1 (en) 2021-11-29 2022-11-11 Centrifugal pump, centrifugal pump device, and firefighting automobile

Publications (1)

Publication Number Publication Date
AT526707A5 true AT526707A5 (en) 2024-04-15

Family

ID=86539519

Family Applications (1)

Application Number Title Priority Date Filing Date
ATA9258/2022A AT526707A5 (en) 2021-11-29 2022-11-11 Centrifugal pump, centrifugal pump device and fire engine

Country Status (3)

Country Link
CN (1) CN117881899A (en)
AT (1) AT526707A5 (en)
WO (1) WO2023095638A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058218A (en) * 1979-09-03 1981-04-08 Klein Schanzlin & Becker Ag Centrifugal pump
US20110027071A1 (en) * 2009-08-03 2011-02-03 Ebara International Corporation Multi-stage inducer for centrifugal pumps
US20160097400A1 (en) * 2014-10-06 2016-04-07 Hamilton Sundstrand Corporation Impeller for engine-mounted boost stage fuel pump
US20190345955A1 (en) * 2018-05-10 2019-11-14 Mp Pumps Inc. Impeller pump

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5424103U (en) * 1977-07-21 1979-02-16
JPS62179394U (en) * 1986-05-06 1987-11-14
JP2000154796A (en) * 1998-11-19 2000-06-06 Mitsubishi Heavy Ind Ltd Impeller
JP2004092527A (en) * 2002-08-30 2004-03-25 Ebara Corp Priming pump
JP2004162591A (en) * 2002-11-12 2004-06-10 Ebara Corp Self-priming pump
FR2974866B1 (en) * 2011-05-03 2013-05-10 Francois Gerlier ELECTROLYTE CIRCULATION PUMP FOR MARINE ENGINE
JP6773318B2 (en) * 2015-10-09 2020-10-21 株式会社モリタホールディングス Pumping device and aerial work platform equipped with the pumping device
JP6624962B2 (en) * 2016-02-10 2019-12-25 株式会社荏原製作所 Suction casing for multi-stage submersible pump and multi-stage submersible pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058218A (en) * 1979-09-03 1981-04-08 Klein Schanzlin & Becker Ag Centrifugal pump
US20110027071A1 (en) * 2009-08-03 2011-02-03 Ebara International Corporation Multi-stage inducer for centrifugal pumps
US20160097400A1 (en) * 2014-10-06 2016-04-07 Hamilton Sundstrand Corporation Impeller for engine-mounted boost stage fuel pump
US20190345955A1 (en) * 2018-05-10 2019-11-14 Mp Pumps Inc. Impeller pump

Also Published As

Publication number Publication date
WO2023095638A1 (en) 2023-06-01
CN117881899A (en) 2024-04-12

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