EP0902192A3 - Volute casing pump - Google Patents

Volute casing pump Download PDF

Info

Publication number
EP0902192A3
EP0902192A3 EP98115674A EP98115674A EP0902192A3 EP 0902192 A3 EP0902192 A3 EP 0902192A3 EP 98115674 A EP98115674 A EP 98115674A EP 98115674 A EP98115674 A EP 98115674A EP 0902192 A3 EP0902192 A3 EP 0902192A3
Authority
EP
European Patent Office
Prior art keywords
rib
ribs
volute casing
edge
casing pump
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
Application number
EP98115674A
Other languages
German (de)
French (fr)
Other versions
EP0902192B1 (en
EP0902192A2 (en
Inventor
Stephan Dr. Bross
Peter Hergt
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 AG
Original Assignee
KSB AG
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 KSB AG filed Critical KSB AG
Publication of EP0902192A2 publication Critical patent/EP0902192A2/en
Publication of EP0902192A3 publication Critical patent/EP0902192A3/en
Application granted granted Critical
Publication of EP0902192B1 publication Critical patent/EP0902192B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F04D29/40—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
    • F04D29/445—Fluid-guiding means, e.g. diffusers 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
    • 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
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A housing for a centrifugal pump has a double spiral shape formed by two or more equal length ribs (8,9) around the impeller. The ribs are separated by gaps (10,11) between the ribs and between the last rib and the edge (4) of the outlet duct. The leading edge (12,13) of a rib is at a smaller radius than the trailing edge of the preceding rib. The angle subtended by a rib is between 0.7 and 1.1 times 360 degrees divided by twice the rib count.
EP98115674A 1997-09-15 1998-08-20 Volute casing pump Expired - Lifetime EP0902192B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19740590 1997-09-15
DE19740590A DE19740590A1 (en) 1997-09-15 1997-09-15 Volute casing pump

Publications (3)

Publication Number Publication Date
EP0902192A2 EP0902192A2 (en) 1999-03-17
EP0902192A3 true EP0902192A3 (en) 1999-07-14
EP0902192B1 EP0902192B1 (en) 2003-06-11

Family

ID=7842447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98115674A Expired - Lifetime EP0902192B1 (en) 1997-09-15 1998-08-20 Volute casing pump

Country Status (5)

Country Link
US (1) US6146095A (en)
EP (1) EP0902192B1 (en)
AT (1) ATE242845T1 (en)
BR (1) BR9803538A (en)
DE (2) DE19740590A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0415301D0 (en) * 2004-07-08 2004-08-11 Weir Pumps Ltd Pump casing
DE202005004180U1 (en) * 2005-03-14 2006-07-27 Ebm-Papst Landshut Gmbh centrifugal blower
MX2010009173A (en) * 2008-02-22 2010-11-12 Horton Inc Hybrid flow fan apparatus.
CA2703855C (en) * 2009-07-31 2018-12-11 Rem Enterprises Inc. Improved air vacuum pump for a particulate loader and transfer apparatus
CN102080671B (en) * 2009-11-27 2015-05-13 德昌电机(深圳)有限公司 Centrifugal pump
EP2567099B1 (en) * 2010-05-07 2016-07-13 Sulzer Management AG Volute shaped pump casing with splitter rib
CA2871451C (en) 2012-04-27 2019-09-24 Weir Minerals Australia, Ltd. Centrifugal pump casing with offset discharge
WO2014122016A1 (en) * 2013-02-08 2014-08-14 Sulzer Pumpen Ag Turbomachine, and flow conducting element for a turbomachine
CA2996964C (en) * 2015-09-03 2022-02-22 Fluid Handling Llc Volute design for lower manufacturing cost and radial load reduction
CN105243222B (en) * 2015-10-27 2018-08-31 湖南湘电长沙水泵有限公司 Design method for changing cast guide vane into welded guide vane, welded guide vane and guide vane body
CN108843619B (en) * 2018-06-28 2020-05-22 西安交通大学 Double-volute structure of centrifugal pump
CN112483417B (en) * 2020-12-14 2022-12-27 万载志成实业有限公司 Circulating pump for selenium silver gold production process
US11873837B1 (en) * 2021-08-02 2024-01-16 W.S. Darley & Co. Centrifugal pumps, casings and vehicles using the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR323504A (en) * 1902-08-05 1903-03-07 Schaaf Wilhelm Improvements to centrifugal pumps and fans
CH219739A (en) * 1941-01-16 1942-02-28 Oerlikon Maschf Centrifugal hoist with volute casing.
US2399548A (en) * 1944-05-05 1946-04-30 Kalasign Company Centrifugal pump
FR1076154A (en) * 1951-12-15 1954-10-25 Centrifugal pump body made of sheet metal
US2955540A (en) * 1957-05-27 1960-10-11 Worthington Corp Twin volute pump
US3289598A (en) * 1965-10-21 1966-12-06 Ingersoll Rand Co Centrifugal pumps

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2102520A5 (en) * 1970-08-06 1972-04-07 Unelec
SU623006A1 (en) * 1977-04-21 1978-09-05 Предприятие П/Я А-7075 Centrifugal blower
DE3001598C2 (en) * 1980-01-17 1983-03-17 Dietrich Dr.-Ing. 5440 Mayen Haase Centrifugal fan
DE3001868C2 (en) * 1980-01-19 1984-01-19 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Centrifugal pump with double volute casing
EP0212834B1 (en) * 1985-07-17 1990-11-14 Geoffrey Light Wilde Variable inlet for a radial turbine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR323504A (en) * 1902-08-05 1903-03-07 Schaaf Wilhelm Improvements to centrifugal pumps and fans
CH219739A (en) * 1941-01-16 1942-02-28 Oerlikon Maschf Centrifugal hoist with volute casing.
US2399548A (en) * 1944-05-05 1946-04-30 Kalasign Company Centrifugal pump
FR1076154A (en) * 1951-12-15 1954-10-25 Centrifugal pump body made of sheet metal
US2955540A (en) * 1957-05-27 1960-10-11 Worthington Corp Twin volute pump
US3289598A (en) * 1965-10-21 1966-12-06 Ingersoll Rand Co Centrifugal pumps

Also Published As

Publication number Publication date
BR9803538A (en) 1999-11-23
DE59808677D1 (en) 2003-07-17
US6146095A (en) 2000-11-14
EP0902192B1 (en) 2003-06-11
ATE242845T1 (en) 2003-06-15
DE19740590A1 (en) 1999-03-18
EP0902192A2 (en) 1999-03-17

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