GB1475722A - Side inlet for centrifugal pumps - Google Patents

Side inlet for centrifugal pumps

Info

Publication number
GB1475722A
GB1475722A GB2214974A GB2214974A GB1475722A GB 1475722 A GB1475722 A GB 1475722A GB 2214974 A GB2214974 A GB 2214974A GB 2214974 A GB2214974 A GB 2214974A GB 1475722 A GB1475722 A GB 1475722A
Authority
GB
United Kingdom
Prior art keywords
cross
sectional area
section
outlet
less
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.)
Expired
Application number
GB2214974A
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.)
Worthington Pump International Inc
Original Assignee
Worthington Pump International Inc
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 Worthington Pump International Inc filed Critical Worthington Pump International Inc
Publication of GB1475722A publication Critical patent/GB1475722A/en
Expired 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
    • F04D29/70—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
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid 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
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
    • 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
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/14—Two-dimensional elliptical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/14—Two-dimensional elliptical
    • F05D2250/141—Two-dimensional elliptical circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/51—Inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved

Landscapes

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

Abstract

1475722 Centrifugal pumps WORTHINGTON PUMP INTERNATIONAL Inc 17 May 1974 [27 June 1973] 22149/74 Heading F1C An inlet conduit for, or integral with, the casing of a centrifugal pump comprises an inlet 12, a diverging section 34, a curved section 35, a straight cylindrical section 36 and an outlet 13. At the plane of intersection between sections 34 and 35 the cross-sectional area is greater than but not more than three times the cross-sectional area of the outlet. Moreover the flow passage at this plane may be oval having a width CW of up to 3D and a height CH of not less than À 3A, the cross-sectional area of the oval being from 1À50 to 2À25 times the cross-sectional area of the outlet. The inlet diameter A is not less than À75D, but is generally À9 to 1À25 D. The radius R, Fig. 7, of the curved section is À75 to 1À50 D. The diameter D may be 20% greater or less than the diameter of impeller eye 27. The straight section 36 may contain an inducing screw (40), Fig. 9 (not shown), driven with the pump impeller.
GB2214974A 1973-06-27 1974-05-17 Side inlet for centrifugal pumps Expired GB1475722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US374088A US3910715A (en) 1973-06-27 1973-06-27 Side inlet means for centrifugal pumps

Publications (1)

Publication Number Publication Date
GB1475722A true GB1475722A (en) 1977-06-01

Family

ID=23475230

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2214974A Expired GB1475722A (en) 1973-06-27 1974-05-17 Side inlet for centrifugal pumps

Country Status (3)

Country Link
US (1) US3910715A (en)
JP (1) JPS5038102A (en)
GB (1) GB1475722A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548157Y2 (en) * 1974-05-31 1980-11-11
CH635171A5 (en) * 1978-06-08 1983-03-15 Bbc Brown Boveri & Cie DEVICE ON A DIFFUSER FOR SUPPRESSING RESONANCES.
JPS6039799U (en) * 1983-08-26 1985-03-19 ジヤパン・ハムワ−ジ株式会社 volute pump
US5205725A (en) * 1991-07-16 1993-04-27 Wayne/Scott Fetzer Company Top suction sump pump having bottom suction impeller
EP0747600B1 (en) * 1992-04-14 1999-03-17 Ebara Corporation Full-circumferential flow pump
US5873697A (en) * 1994-10-11 1999-02-23 Chevron U.S.A., Inc. Method of improving centrifugal pump efficiency
DE19603337C1 (en) * 1996-01-31 1997-08-14 Grundfos As Centrifugal pump with suction and pressure connections on same axis
JP2858111B2 (en) * 1996-07-12 1999-02-17 亀男留 山本 Bath pump
US6464471B1 (en) * 1998-09-08 2002-10-15 Sta-Rite Industries, Inc. High-efficiency motor/pump system for jetted bath/spas
US8152443B1 (en) * 2003-09-26 2012-04-10 Fast Flow, LLC Self-priming centrifugal pump free of mechanical seals
US8272836B1 (en) 2008-01-25 2012-09-25 Lynx Product Group, LLC Pump suction assembly
GB0821089D0 (en) * 2008-11-19 2008-12-24 Ford Global Tech Llc A method for improving the performance of a radial compressor
DE102010050263A1 (en) * 2010-11-02 2012-05-03 Wilo Se Guiding the lantern plug-in part
US20150176581A1 (en) * 2012-07-09 2015-06-25 Jets As Liquid ring screw pump design
WO2016090032A1 (en) * 2014-12-02 2016-06-09 Us Fire Pump Company, L.L.C. High-capacity fluid pump
JP6446705B2 (en) * 2015-01-09 2019-01-09 三菱重工業株式会社 Engine system
US10138891B2 (en) 2015-01-26 2018-11-27 Pemberton Patents Llc Double suction pump with agitators
US11105333B2 (en) 2015-01-26 2021-08-31 Pemberton Patents Llc Double suction pump
US10513343B2 (en) * 2015-08-03 2019-12-24 Parker-Hannifin Corporation Integral pump pressure relief valve
EP3173631B1 (en) * 2015-11-24 2021-10-13 Grundfos Holding A/S Intake device for a vertical pump and arrangement therewith
CN105574288B (en) * 2016-01-12 2017-05-17 扬州大学 Method for designing water inlet conduit three-dimensional body flow surface of high-performance large-flow pump station
CN105608287B (en) * 2016-01-12 2017-05-10 扬州大学 Design method for water outlet flow passage three-dimensional-form flow surface of high-performance and large-flow pump station
US11318480B2 (en) * 2019-03-04 2022-05-03 Kennametal Inc. Centrifuge feed pipes and associated apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1215451A (en) * 1915-04-19 1917-02-13 William M White Hydraulic equalizer.
US2303949A (en) * 1940-01-13 1942-12-01 Carl H Nordell Conduit bend
US2433156A (en) * 1947-02-12 1947-12-23 Albert R Pezzillo Motor pump unit
US3071075A (en) * 1960-07-25 1963-01-01 Watts Regulator Co Liquid circulator
US3734649A (en) * 1971-05-24 1973-05-22 Aircraft Corp U Turbopump having cooled shaft

Also Published As

Publication number Publication date
US3910715A (en) 1975-10-07
JPS5038102A (en) 1975-04-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee